This paper presents a multiple case research concerning success factors and issues of mobile field service implementations. Based on Eisenhardt’s explorative research design, five successful mobile technology implementations are compared and analysed. Important aspects of the implementation strategy and the used technology are examined and discussed. The results indicate that the success of mob...

Purpose – The purpose of this paper is to: empirically validate a modified unified theory of acceptance and use of technology (UTAUT) model by adding an “e-learning motivation” construct in the South American context; try to determine the role of e-learning motivation in the use and adoption of e-learning systems and conversely the effect of technology on students’ e-learning motivation; and to...

This paper explores matching with both search and information frictions. Specifically, everyone observes only a noisy signal of the true type of any potential mate. In this context, matching decisions must incorporate not only information about a partner’s attribute conveyed by the noisy signal, but also—as in the winner’s curse in auction theory—information about a partner’s type contained in ...

or intact muscle. End-systolic pressure-volume relations of frog hearts have been found to be load dependent, whereas those of the mammal are relatively load independent. On the other hand, myocardial relaxation as studied at the muscle level is load independent in the frog but markedly load dependent in the mammal. Interpretation of these studies is complicated because of the unknown contribut...

Real-time systems are being increasingly used in several applications which are time critical in nature. Fault-tolerance is an important requirement of such systems, due to the catastrophic consequences of not tolerating faults. In this paper, we study a scheme that provides fault-tolerance through scheduling in real-time multiprocessor systems. We schedule multiple copies of dynamic, aperiodic...

BACKGROUND Routine HIV screening in emergency department (ED) settings may require dedicated personnel. We evaluated the outcomes, costs and cost-effectiveness of HIV screening when offered by either a member of the ED staff or by an HIV counselor. METHODS We employed a mathematical model to extend data obtained from a randomized clinical trial of provider- vs. counselor-based HIV screening i...

Embedding of virtual network (VN) requests on top of a shared physical network poses an intriguing combination of theoretical and practical challenges. Two major problems with the state-of-the-art VN embedding algorithms are their indifference to the underlying substrate topology and their lack of reoptimization mechanisms for already embedded VN requests. We argue that topology-aware embedding...

BACKGROUND Low adherence to hypertension (HT) management is one of the major contributors to poor blood pressure (BP) control. Approximately 40%-60% of patients with HT do not follow the prescribed treatment. The aim of the study was to analyze the relationship between selected variables and adherence to hypotensive pharmacological treatment. Besides socioclinical variables, the study focused o...

Integer carrier phase ambiguity resolution is the key to fast and highprecision global navigation satellite system (GNSS) positioning and application. Apart from integer estimation, also acceptance tests are part of the ambiguity resolution process. A popular acceptance test is the so-called ratio-test. In this contribution we study the properties and the underlying concepts of the ratio-test. ...