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PhD Thesis defended at the Department of Mathematics, University of Athens, Greece. It concerns the appropriate formulation and solvability / well-posedness of the Maxwell system for the general linear medium. Special attention is paid in the extraction of the constitutive relation from the axioms that govern the phenomenon. The whole approach is purely functional analytic and operator theoretic.

Multiband amplitude modulated sinusoidal audio modeling

In this paper, we investigate the importance of taking frequency-dependent temporal phenomena into account in audio coding. We do this in the context of sinusoidal modeling of audio signals by applying amplitude modulation to the sinusoidal components. Traditionally, audio coders use a fixed time-segmentation for all frequencies despite that it is well-known that the time-frequency resolution of t

Sperm storage and sperm competition across ovarian cycles in the dragon lizard Ctenophorus fordi

Female sperm storage can influence male reproductive success and may favour males that produce sperm that remain viable across several ovarian cycles. Here we show that sperm are viable in the female reproductive tract across ovarian cycles in the mallee dragon, Ctenophorus fordi. Based on experimental mating trials, we show that stored sperm were generally less likely to fertilize eggs than recen

Living Standards in the Past. New Perspectives on Well-Being in Asia and Europe

The main concern of this book is to determine when the gap in living standards between the East and the West emerged. Why did Europe experience industrialization and modern economic growth before China, India, or Japan? This is one of the most fundamental questions in Economic history and one that has provoked intense debate. The established view, dating back to Adam Smith, is that the gap emerged

The impact of mass transfer and interfacial expansion rate on droplet size in membrane emulsification processes

In membrane emulsification, especially under conditions where droplets are forming with a narrow droplet size distribution, it is conjectured that the interfacial phenomena are determining the emulsification result. The process parameters of continuous phase flow and dispersed phase flux were analysed from the perspective of how they could be affecting the interfacial tension of the growing drople

From forms to norms: global projects and local practices in the Balkan NGO scene

ven the most localized rule-of-law conflicts are integrally tied to global forces. At the local level, these global discourses and resources are utilized in the local power struggles as they play themselves out in democracy promotion projects. This paper analyses the role of local NGOs in helping to institute the rule of law in the new democracies of Eastern Europe. Global democracy promotion effo

Protein Dynamics Studied by NMR Spin Relaxation. Conformational Transitions of a Calmodulin Mutant

Binding of calcium to the protein calmodulin leads to molecular reorganization that enables interaction with target peptides and activation of downstream processes. I have studied the dynamics of the calcium-loaded form of a C-terminal calmodulin mutant (E140Q-Tr2C) using NMR spin relaxation experiments. E140Q-Tr2C exhibits global conformational exchange on the microsecond time-scale. The populati

Water and protein solutions studied by field-dependent magnetic relaxation

Popular Abstract in Swedish Kärnmagnetisk resonans (NMR) är en metod som bygger på att många atomkärnor uppför sig som mycket små magneter. Detta i sin tur beror på att kärnan beter sig som en liten roterande laddning. Man säger att kärnan har ett spinn, eller att kärnan är ett spinn. I min avhandling använder jag mig av en fantastisk egenskap hos kärnspinnen. Om man stör systemet kIn the work presented, nuclear magnetic resonance (NMR) relaxation is used to study wide range of systems. The thesis concerns solvent interactions studied with relaxation techniques that involve measurements at many fields, which allows the separation of individual relaxation mechanisms. The approach also makes it possible to characterize the involved dynamic properties in much greater detail. T

Analyzing Vegetation Trends with Sensor Data from Earth Observation Satellites

Popular Abstract in Swedish Sammanfattning Mänskliga aktiviteter och klimatförändringar påverkar vegetationen över hela jorden, idag och i framtiden. Denna påverkan kan studeras och kvantifieras med hjälp av observationer från satelliter vilka förmedlar information om vegetationsförändringar i tid och rum. I denna doktorsavhandling har metoder för analys av vegetationsförändringar utvecklats och Abstract This thesis aims to advance the analysis of nonlinear trends in time series of vegetation data from Earth observation satellite sensors. This is accomplished by developing fast, efficient methods suitable for large volumes of data. A set of methods, tools, and a framework are developed and verified using data from regions containing vegetation change hotspots. First, a polynomial-fittin