Open source IaaS is hot topic in cloud computing and every year a new IaaS with a different design is announced. This paper provides a closer look into three common IaaS; Eucalyptus, OpenStack & Nimbus. OpenStack is currently the best choice of public cloud providers due to its aim at standardization and scalability while Eucalyptus is more appropriate for private cloud deployments.

We present a new method for automatically grading introductory programming assignments. In order to use this method, instructors provide a reference implementation of the assignment, and an error model consisting of potential corrections to errors that students might make. Using this information, the system automatically derives minimal corrections to student’s incorrect solutions, providing th...

BACKGROUND Strengthening contraceptive services in sub Saharan Africa is critical to achieve the FP 2020 goal of enabling 120 million more women and girls to access and use contraceptives by 2020 and the Sustainable Development Goals (SDG) targets of universal access to sexual and reproductive health (SRH) services including family planning by 2030. METHOD The World Health Organization (WHO) ...

Despite their popularity, crowdfunding platforms are experiencing negative headlines as fully funded projects continue to fail delivering the products on time. Current literature postulates that funders make decisions by following the decisions of the crowd, and this herd behavior leads to less than optimal decisions. One explanation of the negative externalities of such behavior is the misfit ...

BACKGROUND The need to better understand implementing evidence-informed dementia care has been recognised in multiple priority-setting partnerships. The aim of this scoping review was to give an overview of the state of the evidence on implementation and dissemination of dementia care, and create a systematic evidence map. METHODS We sought studies that addressed dissemination and implementat...

The aim of our research is to develop the optimal task scheduling algorithm that minimizes the computing period in general network structures considering communication contention and routing delay. We present new ideas of scheduling: i) the individual start that allows overlapping two different iterations, ii) the scheduling space and the scheduling graph that represent feasible schedules, and ...

BACKGROUND Sweden has undertaken many national, regional, and local initiatives to improve patient safety since the mid-2000s, but solid evidence of effectiveness for many solutions is often lacking. Nurses play a vital role in patient safety, constituting 71% of the workforce in Swedish health care. This interview study aimed to explore perceived facilitators and barriers influencing patient s...

Test-based e-Assessment approaches are mostly focused on the assessment of knowledge and not on that of other skills, which could be supported by multimedia interactive services. This paper presents the QTIMaps model, which combines the IMS QTI standard with web maps services enabling the computational assessment of geographical skills. We introduce a reference implementation of the model, with...

Federated computing environments offer requestors the ability to dynamically invoke services offered by collaborating providers in the virtual service network. Without an efficient resource management that includes Dynamic SLA Negotiation, however, the assignment of providers to customer’s requests cannot be optimized and cannot offer high reliability without relevant SLA guarantees. We propose...

To describe the steps needed for a successful implementation of an e-health programme (the Mobile Wound Care system) in rural Victoria, Australia and to provide recommendations for future e-health initiatives. Wound care is a major burden on the health care system. Optimal wound care was found to be impeded by issues that included the limited access to health care providers, incomplete and inco...