Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=54045#.VOBRQCzQrzE Author(s)  Gürsel A. Süer , Kush Mathur Affiliation(s) ISE Department, Ohio University, Athens, OH, USA . ABSTRACT The problem studied in this paper was inspired from an actual textile company. The problem is more complex than usual scheduling problems in that we compute overtime requirements and make scheduling decisions simultaneously. Since having tardy jobs is not desirable, we allow overtime to minimize the number of tardy jobs. The overall objective is to maximize profits. We present various mathematical models to solve this problem. Each mathematical model reflects different overtime workforce hiring practices. An experimentation has been carried out using eight different data sets from the samples of real data collected in the above mentioned textile company. Mathematical Model 2 was the best mathematical model with respect to b...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52345#.VJJI5MnQrzE Author(s) Etienne Z. Gnimpieba 1* , Souad Bousserouel 2 , Abalo Chango 1 Affiliation(s) 1 Department of Nutritional Sciences and Health, EGEAL UPSP: 2007.05.137-Institut Polytechnique Lasalle Beauvais, Beauvais, France . 2 Laboratoire de Prévention Nutritionnelle du Cancer, Inserm U682-IRCAD, Strasbourg, France . ABSTRACT Environmental contamination of food is a worldwide public health problem. Folate mediated one- carbon metabolism plays an important role in epigenetic regulation of gene expression and mutagenesis. Many contaminants in food cause cancer through epigenetic mechanisms and/or DNA instability i.e. ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52345#.VJJI4snQrzE Author(s)   Etienne Z. Gnimpieba 1* , Souad Bousserouel 2 , Abalo Chango 1 Affiliation(s) 1 Department of Nutritional Sciences and Health, EGEAL UPSP: 2007.05.137-Institut Polytechnique Lasalle Beauvais, Beauvais, France . 2 Laboratoire de Prévention Nutritionnelle du Cancer, Inserm U682-IRCAD, Strasbourg, France . ABSTRACT Environmental contamination of food is a worldwide public health problem. Folate mediated one- carbon metabolism plays an important role in epigenetic regulation of gene expression and mutagenesis. Many contaminants in food cause cancer through epigenetic mechanisms and/or DNA instability ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50327#.VDc9NVfHRK0 Author(s)    Narayanan Mehala 1 , Lakshmanan Rajendran 2 Affiliation(s) 1 Department of Mathematics, K.L.N. College of Engineering, Sivagangai, India . 2 Department of Mathematics, The Madura College, Madurai, India . ABSTRACT A mathematical model for the inactivation of nitric oxide by rat cerebellar slices under non-steady state condition has been analyzed. This diffusion-inactivation model was used to estimate the kinetics of NO consumption by the rat cerebellar slices. He’s Homotopy perturbation method is used to solve the first order nonlinear differential equations which describe the concentrations given by net of diffusion and i...