Modeling Overstock

Two main problems have been emerging in supply chain management: the increasing pressure to reduce working capital and the growing variety of products. Most of the popular indicators have been developed based on a controlled environment. A new indicator is now proposed, based on the uncertainty of the demand, the flexibility of the supply chains, the evolution of the products lifecycle and the fulfillment of a required service level. The model to support the indicator will be developed within the real options approach.overstock, stock management, real options

The Public Health Crisis of Alcoholism: What could be done better in Rhode Island?

Alcoholism is a chronic issue that affects over 3 million people per year in the United States. It is characterized by an individual who is physiologically dependent on alcohol to the point where they cannot carry out common social activities such as having friends or holding down a job. Approximately 88,000 people die per year due to alcohol related events. The economic impact due to hospital bills, criminal justice costs, and lost productivity of the abuser is estimated at $400 billion annually. Alcohol abuse can be used as a coping mechanism in adolescents who are struggling with behavioral health issues that could eventually lead to long-term abuse and lowered life expectancy. Given the harsh effects alcohol use can have on society, it is important to address this issue from a public health point of view where we can confront the direct causes and put in place prevention and treatment programs at the national, state, and local levels. Rhode Island is a densely populated state that has issues with substance abuse and alcohol abuse in particular. A 2015 CDC study showed that 17% of Rhode Island adults admitted to binge drinking in the past month. This is in between the highest (North Dakota at 24.9%) and lowest (Utah at 11.4%) prevalences. The focus of this research is to understand alcohol abuse disorder and research the causes, complications, and treatment options. An overall theme is to understand what Rhode Island could do better in terms of prevention and treatment options. The research done in this article will be supplemented by interviews with healthcare workers who work directly with alcohol abuse patients. Studies have shown that screening children for alcohol abuse risk factors, implementing more residential inpatient treatment centers and decreasing alcohol outlets may lower the alcohol abuse prevalence

Spectra: Robust Estimation of Distribution Functions in Networks

Distributed aggregation allows the derivation of a given global aggregate property from many individual local values in nodes of an interconnected network system. Simple aggregates such as minima/maxima, counts, sums and averages have been thoroughly studied in the past and are important tools for distributed algorithms and network coordination. Nonetheless, this kind of aggregates may not be comprehensive enough to characterize biased data distributions or when in presence of outliers, making the case for richer estimates of the values on the network. This work presents Spectra, a distributed algorithm for the estimation of distribution functions over large scale networks. The estimate is available at all nodes and the technique depicts important properties, namely: robust when exposed to high levels of message loss, fast convergence speed and fine precision in the estimate. It can also dynamically cope with changes of the sampled local property, not requiring algorithm restarts, and is highly resilient to node churn. The proposed approach is experimentally evaluated and contrasted to a competing state of the art distribution aggregation technique.Comment: Full version of the paper published at 12th IFIP International Conference on Distributed Applications and Interoperable Systems (DAIS), Stockholm (Sweden), June 201

Department of Applied Mathematics Academic Program Review, Self Study / June 2010

The Department of Applied Mathematics has a multi-faceted mission to provide an exceptional mathematical education focused on the unique needs of NPS students, to conduct relevant research, and to provide service to the broader community. A strong and vibrant Department of Applied Mathematics is essential to the university's goal of becoming a premiere research university. Because research in mathematics often impacts science and engineering in surprising ways, the department encourages mathematical explorations in a broad range of areas in applied mathematics with specific thrust areas that support the mission of the school

Percepções de indivíduos portadores de diabetes mellitus sobre a doença.

Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Saúde Pública, Curso de Medicina, Florianópolis, 200

D∗(R;⩽) does not imply D1∗

AbstractWe prove that the cyclic monotonically normal space T of Rudin is not a J2-space. Consequently, T has the monotone extension property but does not have D1∗ or D∗(R; + ;cch). This answers some questions of van Douwen

Fast Compensated Algorithms for the Reciprocal Square Root, the Reciprocal Hypotenuse, and Givens Rotations

The reciprocal square root is an important computation for which many very sophisticated algorithms exist (see for example \cite{863046,863031} and the references therein). In this paper we develop a simple differential compensation (much like those developed in \cite{borges}) that can be used to improve the accuracy of a naive calculation. The approach relies on the use of the fused multiply-add (FMA) which is widely available in hardware on a variety of modern computer architectures. We then demonstrate how to combine this approach with a somewhat inaccurate but fast square root free method for estimating the reciprocal square root to get a method that is both fast (in computing environments with a slow square root) and, experimentally, highly accurate. Finally, we show how this same approach can be extended to the reciprocal hypotenuse calculation and, most importantly, to the construction of Givens rotations