How do business angels assess a prospective entrepreneurial firm when they make an investment decision? This article examines central question that informal venture capitalists have been struggling with for decades: What early stage decision making criteria investors define and apply to reduce the volume of potential deals more manageable size? Based on semi-structured interviews in emerging ma...

Objectives Information technology involves a risk of privacy violation in providing easy access to confidential information,such as personal information and medical information through the Internet. In this study, we investigated medical information security to gain a better understanding of trends in research related to medical information security. Methods We researched papers published on ...

Data warehouses (DWs) can become inconsistent when some dimensional constraints are not satisfied by the dimension instances. In this paper, we present preliminary results about the effects of the violation of partitioning constraints in homogeneous dimension instances over aggregation queries, and in particular over the summarizability property (SUMM) of the DWs. We are interested in finding w...

We consider the classical statistical learning/regression problem, when the value of a real random variable Y is to be predicted based on the observation of another random variableX . Given a class of functions F and a sample of independent copies of (X,Y ), one needs to choose a function f̂ from F such that f̂(X) approximates Y as well as possible, in the mean-squared sense. We introduce a new p...

In Ghana, freight transport is growing continuously every year due to its location and business processes. However, road carries 86% of despite numerous negative impacts. Hence, the government has invested in rail transport, with 70% capacity for her busy corridor (eastern regions Ghana). Thus, awareness criteria considered when deciding on becomes vital. this study aims improve understanding f...

Although information technology (IT) outsourcing is widely applied by companies and has been intensively researched, there has been little scientific research on the differences in singleversus multi-sourcing constellations. Furthermore, linear extension of single-sourcing to multi-sourcing is limited, despite the fact that companies utilize multi-sourcing more frequently in recent times. This ...

OBJECTIVE The present study sought to identify both the ingredients for success and the potential impediments to social marketing effectiveness for healthy eating behaviour, focusing on studies conducted over the last 10 years. DESIGN A comprehensive literature review was undertaken examining seventeen databases to identify studies reporting the use of social marketing to address healthy eati...