Evaluation of Artificial Lift Methods to Increase Oil Production from Depleting Oil Wells in Gulf of Mexico

This paper summarizes the research work with reference to artificial lift methods to increase oil production form mature oil wells in Gulf of Mexico.  Increase oil production or oil recovery from oil reservoirs is very important. If the average worldwide recovery factor from hydrocarbon reservoirs can be increased beyond current limits, it will alleviate a number of issues related to global energy supply. Currently the daily oil production comes from mature or maturing oil fields and reserves replacement is not keeping pace with the growing energy demand.   This paper presents big picture overview of artificial lift methods for mature oil wells in Gulf of Mexico

Entrepreneurial Competences: Comparing and Contrasting Models and Taxonomies

The emphasis on competencies as capturing key aspects of entrepreneurship is relatively recent and quite distinct from research on entrepreneurial traits or cognitive styles in that competencies represent observable and measurable knowledge, behaviour, attitudes and skills. Many competency taxonomies and models have been proposed by scholars, as frameworks organized into tiers of competencies including descriptions of the activities and behaviours associated with that competency (Chouhan & Srivastava, 2014). However, no comprehensive set of entrepreneurial competencies has emerged from these distinctions and no or little empirical evidence has been provided to validate these categorizations (Morris et al., 2013). This study compares and contrasts three traditional models (Morris et al., 2013, Bartram\u2019s 2005, with the EU Entrepreneurship Competence Framework; EntreComp, Bacigalupo et al., 2016) previously empirically validated by the author

Mitochondria at the neuronal presynapse in health and disease

Synapses enable neurons to communicate with each other and are therefore a prerequisite for normal brain function. Presynaptically, this communication requires energy and generates large fluctuations in calcium concentrations. Mitochondria are optimized for supplying energy and buffering calcium, and they are actively recruited to presynapses. However, not all presynapses contain mitochondria; thus, how might synapses with and without mitochondria differ? Mitochondria are also increasingly recognized to serve additional functions at the presynapse. Here, we discuss the importance of presynaptic mitochondria in maintaining neuronal homeostasis and how dysfunctional presynaptic mitochondria might contribute to the development of disease