Linking dispersal and range expansion of invasive species has long challenged theoretical and quantitative ecologists. Subtle differences in dispersal can yield large differences in geographic spread, with speeds ranging from constant to rapidly increasing. We developed a stage-structured integrodifference equation (IDE) model of the California sea otter range expansion that occurred between 19...

Invasive species pose significant ecological costs, and therefore successful management techniques are important. One commonly employed method is biological control. The success of biological control depends largely on whether additional inflicted damage can successfully reduce the fitness and population growth rate of a target species. Here, we simulate herbivory on the invasive Lespedeza cune...

paying attention to finance and financial marketing tools could significantly contribute to resolution of financial problems of the firms and avoid their bankruptcy. following the review of previous works in the field of marketing and its application in financing, as well as conducting semi-structured interviews, firstly marketing elements for financing were identified and then marketing strate...

In this paper, a theorem is proved which presents the series solution obtained from the homotopy analysis method is convergent to the exact solution of nonlinear age-structured population models.

Methodology A cross sectional study in Turkey, including both rural and urban population, carried out from October 2011 till January 2012. A total of 540 heads of household were selected using multi stage random sampling. Data was collected using structured self-administered questionnaire. The tools used was modified 16-item Quality of Care Through the Patients’ Eyes (QUOTE) questionnaire. QUOT...