Product Development Process (PDP) is a systematic activity whose purpose is to generate new products, either by introducing changes to an existing product or creating a new one. At food industries, the PDP is crucial, because the scene where they operate is highly competitive, which means that the structure of PDP Management becomes essential to remain in the market.

The paper presents a comparative analysis of PDP management at food companies located in Santa Fe (Argentina), which belong to three sectors, selected according to their importance for the region and defined based on the classification proposed for Manufacturing Industry by a national public entity: dairy products (Manufacture of dairy products), supplies (defined from items Preparation of fruits, vegetables and legumes and Manufacture of food products not classified) and meat (production and processing of meat and meat products). The analysis describes the current practices of the companies under study and proceeds to compare them with the activities proposed by a Reference Model for the food industry.

Among the key findings it stresses that only some companies have methodologies and practices for PDP management internalized. In addition, there are substantial differences in relation to the systematization detail levels of PDP activities. On one hand, these differences are observed at an individual level among companies of the same sector, in general associated with organizations size. On the other hand, are distinguished from the comparison between different sectors, where dairy and supplies sectors present higher level of PDP development.

This article deal with the global existence and blow-up time of solution for the nonlinear parabolic equation under the nonlinear Neumann boundary condition. we establish, blow-up will occur at some finite time and an upper bound time. Moreover, we also show a lower bound time.

Recently, the demand for well-developed and expert human resources is changing more quickly than the human resources themselves. Therefore, it is necessary to build a new strategy for the human resource development. Only high-quality workers of knowledge may carry and sustain a competitive advantage and only such multi-skill workers can follow the modern day business operations, characterized by quick, dynamical, complex and unpredictable changes. The focus of this is to show the degree of the multi-skill workers factor in the cement industries in Libya.  The study design combines two types of data collection methods, questionnaires and semi- structured interviews. T- Test and F- test used through a simple linear regression to identify the study model. Finally, the study emphasizes that the importance of multi-skill workers factor in improving product competitiveness.