Introduction Minimally invasive total hip arthroplasty (THA) has become common, and several approaches are now used clinically. We have been using an anterolateral (AL) approach with partial resection of the gluteus medius in minimally invasive THA. Recently, faster recovery has been reported using the AL approach with muscle sparing technique (modified Watson-Jones approach) [1]. Our concern i...

End-Hall ion sources have been used for almost 20 years in the optical coating industry for ion assisted deposition (IAD) and substrate pre-clean. In these applications, end-Hall ion sources have several desirable performance characteristics. They produce a large current of low energy ions, and they distribute the ions uniformly over a large coverage area. The sources can operate on either argo...

The increased cost of accessing energy and the effects on economic growth (GDP) across regions is one of grave concern [1]. The Cost implication of energy supply often shapes regional energy policies across the globe. This paper presents an empirical investigation into the relationship between energy generation and economic growth, while also investigating probable threats to sustainable energy...

For digraphs G and H , a homomorphism of G to H is a mapping f : V (G)→V (H) such that uv ∈ A(G) implies f(u)f(v) ∈ A(H). If, moreover, each vertex u ∈ V (G) is associated with costs ci(u), i ∈ V (H), then the cost of a homomorphism f is ∑ u∈V (G) cf(u)(u). For each fixed digraph H , the minimum cost homomorphism problem for H , denoted MinHOM(H), can be formulated as follows: Given an input di...

The decision of whether to release transgenic crops in the EU is one subject to flexibility, uncertainty and irreversibility. We analyse the case of herbicide-tolerant sugar beet and estimate the maximum irreversible environmental cost that can be tolerated for this technology from a benefit–cost perspective. Among Member States, these costs range from an annual € 50 to € 212 per hectare plante...

While prior research, as noted in our paper, often uses various accrual prediction models to detect earnings management, not much is known about the accuracy, both relative and absolute, associated with these models. Our paper investigates the accuracy of six di€erent accrual prediction models, and o€ers the following ®ndings. Only the Kang ± Sivaramakrishnan (1995) model performs moderately we...

Recently cloud services have been evaluated by scientific communities as a viable solution to satisfy their computing needs, reducing the cost of ownership and operation to the minimum. The analysis on the adoption of the cloud computing model for eScience has identified several areas of improvement as federation management and interoperability between providers. Portability between cloud vendo...

Eine Arbeitsgruppe des SOA Innovation Lab e.V. (www.soa-lab.de) analysiert derzeit, welche Erfahrungen die verschiedenen Mitgliedsunternehmen mit der serviceorientierten Integration von Standardsoftware gemacht haben. Die Ergebnisse werden auf der Basis eines Reifegradmodells für serviceorientierte Architekturen ausgewertet und für alle Mitglieder aufbereitet. Als Teilaspekt wurde insbesondere ...

Traditional intra-firm cost accounting tools are not appropriate in the context of supply chain management. Various costing approaches such as activity based costing (ABC), target costing and open book accounting have been introduced to provide timely, accurate and relevant financial information for enable supply chain managers to make and execute effective decision-making. The author also argu...

This paper compares the total cost of ownership of a physical cluster with the cost of a virtual Cloud-based cluster. For that purpose, cost models for both the physical cluster and the cluster on the Cloud have been developed. The model for the physical cluster takes into account previous works and incorporates a more detailed study of the costs related to energy consumption and the usage of e...