U.S. healthcare organizations face unprecedented financial pressures, making it more difficult than ever to maintain the vital re-investment capital required to sustain high levels of care and improve operating efficiency. More than 34% of hospitals reported operating losses for the first half of 2009 and more than 70% of healthcare organizations have slowed down or canceled capital projects as...

This research models the development decision when net rents are growing geometrically and uncertainly, and capital intensity is variable. We derive simple rules for the optimal timing of land development projects based on the commonly used internal rate of return and net present value criteria. We show that, even under certainty, projects are optimally delayed beyond the point where net presen...

We explore the connection between the mind and the brain. We propose that consciousness is the consequence of processing information and that the solution to the binding problem does not entail quantum mechanical coherence or entanglement. We argue for an alternative inspiration from quantum mechanics and quantum field theory based on time-energy uncertainly: not to reduce consciousness to a qu...

This paper applies the Feedback Error Learing and H framework to develop a robust model and adaptive architecture for web server performance control and service delay guarantees. Web server model is approximated with a two tank system that includes many uncertainly components. In contrast with web server delay control that only control delay, our architecture based on H robust control and queui...

This paper deals with the problem of model (in)validation of discrete-time, causal, LTI stable models subject to Slowly Linear Time Varying structured uncertainly, using freqnency-domain data corrupted by additive noise. It is nell known that in the case of structured LTI uncertainty the problem is NP hard in the number of uncertainty blocks. The main contribution of this paper shows that, on t...

Early detection of prostate cancer is problematic, not just because of uncertainly whether a diagnosis will benefit an individual patient, but also as a result of the imprecise and invasive nature of establishing a diagnosis by biopsy. Despite its low sensitivity and specificity for identifying patients harbouring prostate cancer, serum prostate specific antigen (PSA) has become established as ...

This paper focuses on a new Stackelberg location problem on a tree network with demands whose quantities are given uncertainly and vaguely. By representing their quantities as fuzzy random variables on the tree network, the optimal location problem can be formulated as a fuzzy random programming problem for finding Stackelberg equilibrium. By using both their α-level sets for fuzziness and thei...

We prove unique continuation principles for solutions of evolution Schrödinger equations with time dependent potentials. These correspond to uncertainly principles of Paley-Wiener type for the Fourier transform. Our results extends to a large class of semi-linear Schrödinger equation. Titre : Un théoreme de type Paley-Wiener pour les évolutions de Schrodinger. Résumé : On prouve des principes d...

Kemampuan Literasi matematis merupakan kemampuan yang di ukur dalam PISA ( Programme for International Student Assessment ). Di terdapat empat konten matematika yaitu perubahan dan hubungan Change and Relationship ), ruang bentuk Space Shape bilangan Quantity serta ketidakpastian data Uncertainly Data Penelitian ini bertujuan untuk mendeskripsikan literasi menyelesaikan soal berorientasi uncert...

abstract one of the important economic problems in arid and semi-arid regions is insufficient water for agricultural purposes as it is evident for other purposes. accordingly, sustainable management of water resources becomes an important challenge for policymakers. this study investigated water use planning based on the fluctuation of rainfall and the random nature of water resources in firoza...