Effective population size is fundamental in population genetics and characterizes genetic diversity. To infer past population dynamics from molecular sequence data, coalescent-based models have been developed for Bayesian nonparametric estimation of effective population size over time. Among the most successful is a Gaussian Markov random field (GMRF) model for a single gene locus. Here, we pre...

This paper focuses on the framework of personalized logistics service. Taking “provide it”, “find it” and “get it” as the guides, and based on X Party Material Flow(X-PMF), this paper formed the basic theoretical framework of Personalized Logistics Service (PLS), which includes the theories and methods of X-PMF virtual collector, information filter and logistics coordination system. Then the op...

Because of the disconnection between the Logistics services trading platform and the EDI customs clearance system, the logistics clearance data needed to be gathered manually, and the efficiency of customs clearance was rather low. In view of this problem, a logistics data exchange method based on the XML technology was proposed, which firstly achieved the batch extraction and conversion of the...

Logistics outsourcing has been applied in practices by enterprises for decades, but its efficiency is always restricted because logistics service providers (LSPs) often only have a single function such as delivery or warehousing. In the last few years, LSPs have upgraded their capabilities to support some other logistics services including valueadded services, materials management, information-...

Regional Logistics-Economic System has been selected as the research object. To solve the collaborative barriers in coupling development of the system, the concept and constitute of Regional Logistics-Economic System have been constructed. The coupling development degree evaluation model and criteria have been established, and a reasonable evaluation index system has been also elected. The coup...

Logistics processes in a globalized economy are increasingly complex, dynamic, and distributed. These characteristics pose major challenges for logistics management. Planning, organizing, leading and coordinating processes have become progressively more complex activities that are carried out by an increasing number of internal actors. Information inputs and outputs of these processes are more ...

Background Prior to 1993, Nepal had a vertical health logistics system. Logistics was not a government priority. No logistics curricula had been developed, no staff had been trained, and no logistics information systems existed at any level. After the establishment of the Logistics Management Division in 1993, the lack of trained manpower in logistics was realized. With support of USAID funded ...