In the last decade, theory of constraint application in project management lead to make a new approach for project scheduling and control as a critical chain. In this paper, a multi-objective optimization model for multi-project scheduling on critical chain is investigated. The objectives include time, cost and quality. In order to solve the problem, a Simulated Annealing algorithm is developed...

Magnetic fields play an important role in creating, driving, and in the evolution of outflows and jets from protostars and accretion disks. On the other hand, the temperature profile of the accretion disks may also affect the structure of the magnetic field and outflows. In this paper, we use the self-similar method in cylindrical coordinates to investigate the effect of the temperature profile...

OBJECTIVE Critical value policies are used by clinical laboratories to decide when to notify caregivers of life-threatening results. Despite their widespread use, critical value policies have not been published locally. A survey was designed to determine critical value policies for haematology tests in South Africa. METHODS A survey was carried out on 136 identified laboratories across South ...

Scientists regularly decide the statistical significance of their findings by determining whether they can, with sufficient confidence, rule out the possibility that their findings could be attributed to random variation—the ‘null hypothesis.’ For this, they rely on tables with critical values pre-computed for the normal distribution, the t-distribution, etc. This paper provides such tables (an...

Takeya’s item relational structure theory is a well-known ordering algorithm. However, its threshold limit value is a fixed value, lacking of statistical meaning, In this paper, the authors provide an improved threshold limit value by using the empirical distribution critical value of all the values of the relational structure indices between any two items, it is more sensitive and effective th...

Now that a majority of hospitals and primary care physicians have made the transition to electronic health record (EHR) systems, realizing value from this investment has become a major issue. The issue raises two key questions: Why do so many EHR implementations continue to fall short of achieving intended healthcare outcome goals? What differentiates those that succeed from those that fall sho...

The underpinning logic of value co-creation in service logic is analysed. It is observed that some of the 10 foundational premises of the so-called service-dominant logic do not fully support an understanding of value creation and co-creation in a way that is meaningful for theoretical development and decision making in business and marketing practice. Without a thorough understanding of the in...

Business Intelligence (BI) systems have been rated as a leading technology for the last several years. However, organizations have struggled to ensure that high quality information is provided to and from BI systems. This suggests that organizations have recognized the value of information and the potential opportunities available but are challenged by the lack of success in Business Intelligen...

The purpose of this paper is to demonstrate the value of critical research for information and communications technology for development (ICT4D) studies. Most previous IS research on ICT4D projects is interpretive and has focused on the immediate organizational context, but there are very few critical studies that have engaged in macro sociopolitical analyses regarding institutional change. Hen...

...................................................................................................................................................3 INTRODUCTION ...........................................................................................................................................4 BACKGROUND ......................................................................................