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Yeast volatiles attract insects, which apparently is of mutual benefit, for both yeasts and insects. However, it is unknown whether biosynthesis of metabolites that attract insects is a basic and general trait, or if it is specific for yeasts that live in close association with insects. Our goal was to study chemical insect attractants produced by yeasts that span more than 250 million years of ev

Due to the overpopulation in the main cities and shortage of water in Egypt, finding new possible reclamation areas becomes an urgent necessity. The area northwest of El Sadat city can be considered one of the most promising new reclamation areas. This study focuses on detecting the groundwater aquifers, delineating the best localities to drill groundwater boreholes, and evaluation of the groundwa

This thesis addresses the critical issue of design and development of products like production machines for SMEs and rural communities as an essential capability to foster local technology development within the innovation systems of Latin America. What is studied and discussed in this thesis is the pre-requisites for effective application of design and development methods, like design thinking fo

Increasing concern regarding climate change and environmental sustainability have driven research regarding the development of innovative solutions for CO₂ mitigation and biomass utilization. This thesis explores the catalytic conversion of CO₂ and lignin into valuable chemicals, as a promising approach to achieving carbon neutrality and enhancing the circular economy. The study focused on two key

Understanding the formation and evolution of galaxies and in particular their galactic centres is one of the most intriguing questions in modern astrophysics. Many spiral galaxies like the Milky Way feature a nuclear stellar disc (NSD) in their centre. The Milky Way's NSD is, together with the nuclear star cluster and the central super massive black hole, one of the main inner components and best

The success of membrane technology in the food industry is directly linked to the success of membranes in protein recovery. Proteins are one of the most important food ingredients and their global market is growing rapidly. In 2012 the global market of protein accounted for 19 billion USD, while for 2018 it is expected to reach 28 billion USD. The aim of this presentation is to provide an overview

Summary: We investigated if bone mineral density was related to testosterone deficiency and/or previous cancer treatment in men who were childhood cancer survivors. Men with untreated testosterone deficiency or previous treatment with cranial irradiation were at increased risk of impaired bone health. Prevention of osteoporosis should be considered in their follow-up. Introduction: Childhood cance