Tunis University

About: Tunis University is a education organization based out in Tunis, Tunisia. It is known for research contribution in the topics: Population & Thin film. The organization has 11745 authors who have published 15400 publications receiving 154900 citations. The organization is also known as: University of Tunis & UT.

Renewable and non-renewable energy use - economic growth nexus: The case of MENA Net Oil Importing Countries

Abstract: This study examines the energy use – economic growth nexus by disaggregating energy use into two types of energy, renewable and non-renewable energy use. Our sample consists of eleven MENA Net Oil Importing Countries (NOICs) during the period 1980–2012. A multivariate panel framework was used to estimate the long run relationship and the panel Granger causality tests was employed to assess the causality direction among variables. The empirical results provide evidence for long-term equilibrium relationship between real Gross Domestic Product (GDP), renewable energy use, non-renewable energy use, real gross fixed capital formation and labor force. The results provide evidence also for positive and statistically significant elasticities. Moreover, the empirical findings from panel Error Correction Model confirm the existence of bidirectional causality between renewable energy use and economic growth, and between non-renewable energy use and economic growth, results that support the feedback hypothesis. Moreover, our empirical findings provide evidence for two way (bidirectional) causal association in both the short and long-run between renewable and non-renewable energy use which proves the substitutability and interdependence between these two types of energy sources. The policies implications of these results are also proposed and discussed.

BACTIBASE second release: a database and tool platform for bacteriocin characterization

Abstract: Background BACTIBASE is an integrated open-access database designed for the characterization of bacterial antimicrobial peptides, commonly known as bacteriocins.

PhytAMP: a database dedicated to antimicrobial plant peptides

Abstract: Plants produce small cysteine-rich antimicrobial peptides as an innate defense against pathogens Based on amino acid sequence homology, these peptides were classified mostly as α-defensins, thionins, lipid transfer proteins, cyclotides, snakins and hevein-like Although many antimicrobial plant peptides are now well characterized, much information is still missing or is unavailable to potential users The compilation of such information in one centralized resource, such as a database would therefore facilitate the study of the potential these peptide structures represent, for example, as alternatives in response to increasing antibiotic resistance or for increasing plant resistance to pathogens by genetic engineering To achieve this goal, we developed a new database, PhytAMP, which contains valuable information on antimicrobial plant peptides, including taxonomic, microbiological and physicochemical data Information is very easy to extract from this database and allows rapid prediction of structure/function relationships and target organisms and hence better exploitation of plant peptide biological activities in both the pharmaceutical and agricultural sectors PhytAMP may be accessed free of charge at http://phytamppfba-laborg