A model for missing data in mixed binary and continuous responses, which can be used on cross-sectional data, is presented. In this model response indicator for the binary response can be dependent on the continuous response. A closed form for the likelihood is found. For data with a complicated pattern of missing responses some new residuals are also proposed. The model of multiplicative heter...

In most stochastic inventory models, such as continuous review models and periodic review models, it has been assumed that the stockout period during a cycle is small enough to be neglected so that the average number of cycles per year can be approximated as D/Q, where D is the average annual demand and Q is the order quantity. This assumption makes the problem more tactable, but it should not ...

In most stochastic inventory models, such as continuous review models and periodic review models, it has been assumed that the stockout period during a cycle is small enough to be neglected so that the average number of cycles per year can be approximated as D/Q, where D is the average annual demand and Q is the order quantity. This assumption makes the problem more tactable, but it should not ...

background: the need to provide high quality prenatal care services, which take account of women's views and specifi­cally address their need for information, support and communication, has been advocated and group prenatal care, had been sug­gested as one of the ways to achieve this objective. the purpose of this study was to examine the impact of group versus in­dividual prenatal care on sati...

Evolution as a metaphor borrowed from nature can be used to describe a design process. However, this has generally been applied to the evolution of a solution which assumes the problem does not change throughout the process. This is a naive assumption in design because the problem indeed changes. This paper considers the evolution of both the problem and solution and introduces co-evolutionary ...

We found that the differential topology of the lattice-system Ising model determines whether there can be the continuous phase transition, The geometric topology of the space the lattice-system is embedded in determines whether the system can become ordered. If the system becomes ordered it may not admit the continuous phase transition. The spin-projection orientations are strongly influenced b...

Background: Patients with heart failure (HF) need continuous medical care, including regular follow-up, training, and information acquisition to increase self-care capacity. Adherence behaviors reduces patient readmission Objectives: This study examined the impact of care model (CCM) on self-efficacy patients hospitalized HF. Methods: quasi-experimental was conducted HF visiting two teaching ho...