Antifungal activity of petroleum ether extract of Psoralea corylifolia L. seed, tested against Fusarium sp. namely, Fusarium oxysporum, Fusarium moniliforme, and Fusarium graminearum, was evaluated by agar well diffusion assay. The chromatographic fractionation of the extract yielded a new phenyl derivative of pyranocoumarin (PDP). The structure of the PDP was confirmed using spectroscopic char...

Parallel distributed processing (PDP) provides a contemporary framework for thinking about the nature and organization of perception, memory, language, and thought. In this talk I describe the overall framework briefly and discuss its implications of procedural, semantic, and episodic memory. According to the PDP approach, the processing of information takes place through the interaction of a l...

The two parameter Poisson-Dirichlet Process (PDP), a generalisation of the Dirichlet Process, is increasingly being used for probabilistic modelling in discrete areas such as language technology, bioinformatics, and image analysis. There is a rich literature about the PDP and its derivative distributions such as the Chinese Restaurant Process. This article reviews some of the basic theory and t...

The emergence of a new production paradigm has been widely discussed in the literature. Concepts developed in operations management research related to the new paradigm should also be valid and useful in construction. Unfortunately, these have been weakly applied in the product development processes in most companies, despite the importance of this process. The product development process (PDP)...

Pickup and Delivery Problems (PDPs) have received significant research interest in the past decades. Their industrial relevance has stimulated the study of various types of solutions. Both centralized solutions, using discrete optimization techniques, as well as distributed, multi-agent system (MAS) solutions, have proven their merits. However, real PDP problems today are more and more characte...

INTRODUCTION Odontogenic cysts are commonly encountered lesions among head and neck pathologies. Odontogenic keratocyst (OKC) has unique features of recurrence and local aggressiveness. Podoplanin (PDP) is a lymphatic endothelial marker and is shown to be expressed in a variety of tissues. Hence, we planned to assess the significance of PDP in OKC and dentigerous cyst (DC). MATERIALS AND METH...

Living cells respond to their environment by means of an interconnected network of receptors, second messengers, protein kinases and other signalling molecules. This article suggests that the performance of cell signalling pathways taken as a whole has similarities to that of the parallel distributed process networks (PDP networks) used in computer-based pattern recognition. Using the response ...

Knowing or being able to measure the “path density” at sources of communications is essential to provide fair capacity distribution between sessions in multi-hop ad hoc networks. We propose and have implemented PDP, a path density recording protocol. In this paper we describe PDP, discuss protocol design options and explain how it was piggybacked onto an existing reactive routing scheme. We ass...