The DUI (learning by doing-using-interacting) mode offers a promising theoretical framework to explain why many small- and medium-sized enterprises (SMEs) are successful in innovation without research development (R&D) efforts. In this context, we argue that—because of the informal, person-centered, interactive nature mode—small business owners should be key position trigger learning processes ...

We apply the Weber-Fechner’s law, which represents the relation between the magnitude of physical stimulus and the magnitude of psychological sense in human being, to the utility function. We conclude that the utility function of n-types of goods is of separable type u(x1, x2, · · · , xn) = u1(x1) + u2(x2) + · · · + un(xn), which give the relation of the demand function in the form pi = dui/dxi...

University of Natal OPSOMMING Bedryfsgesondheidsorg is ’n belangrike vraagstuk in Suid-Afrika. Ondersoek is ingestel na die rol en funksies van 28 geregistreerde verpleegkundiges in voltydse diens van 26 fabrieke in die Durban-area. Hulle is ook gevra om hul dringendste onderwysbehoeftes aan te dui. ’n Betekenisvolle bevinding was dat meer kennis oor diagnose en behandeling veral ’n behoefte wa...

Large variations in offspring sex ratio have been reported in Mytilus mussels, which show doubly uniparental inheritance of mitochondria (DUI). Here, we reanalyzed the published sex ratio data, using simple population genetics concepts and logistic regression. Contrary to previous studies that detected only maternal effects, we found both paternal and maternal effects on the offspring sex ratio...

Although a Web search is typically regarded as a solitary activity, collaborative search approaches are becoming an increasingly relevant topic for HCI and distributed user interfaces (DUIs). Today’s collaborative search systems lack comprehensive search support that also involves preor post-search activities such as preparing for a search or making sense of search results. We believe that post...