This study compares the reasons why small and large companies are adopting electronic commerce (ecommerce) and compares the bene ts realized from the adoption of e-commerce by these two groups of companies. Two surveys that were undertaken contemporaneously on the use of e-commerce by small and large companies in the UK were used as the empirical basis for this study. The study found that the use of e-commerce for responding to competitors, providing enhanced customer services and improving relations with suppliers was driving the uptake by smaller businesses to a greater extent than by their larger counterparts. Only in the area of improved operational ef ciency did larger businesses express greater interest in adopting e-commerce. The study also found that smaller businesses believed that they had achieved greater bene ts from their e-commerce services than had the larger rms in all areas explored.
Following the observation that relatives of cystic fibrosis (CF) patients have an increased mortality due to leukaemia, a study was initiated to determine whether leukaemia patients had an increased prevalence of the delta F508 CF mutation. No increase in carriers were found among leukaemias; however the carrier frequency of the delta F508 mutation appeared to be reduced in patients with malignant melanoma analysed as a control group compared to the normal population. This paper extends our previous study and investigates several other common human tumours, including those of the colon, breast, and lymphoma tissue. Fewer than expected carriers remained among the melanoma group from South Wales. There were fewer than expected carriers among patients with colon cancer compared to the normal population. The prevalence of the delta F508 mutation was normal in lymphomas and leukaemias.
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