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This research monograph explores new frontiers in Markov chains. Although time-homogeneous Markov chains are well understood, this is not at all the case with time-inhomogeneous ones. The book, after a review on the classical theory of homogeneous chains, including the electrical network approach, introduces several new models which involve inhomogeneous chains as well as related new types of rand

The World Health Organization declared COVID-19, the infectious disease caused by the coronavirus SARS-CoV-2, a pandemic on March 12, 2020. COVID-19 is causing massive health problems and economic suffering around the world. The European Association for the Study of Obesity (EASO) promptly recognised the impact that the outbreak could have on people with obesity. On one side, emerging data suggest

The purpose of this thesis’ topic is to investigate the evolutionary dispersal of the Charon’s fee or Obolus rite outside the Roman provinces in Northern Europe, with a specific focus on Roman Iron Age and Migration Period Scandinavia. The aim of this study is therefore to add further understanding to the spread of Roman cultural influences outside the imperial borders and what made Roman material

This thesis investigates the role of trust in the context of decentralised finance (DeFi). Representing a new paradigm shift in finance, DeFi emerge from the technological developments that we have witnessing in the last decades, particularly decentralised ledger technologies (DLTs) of which Blockchain is perhaps the most popular. DeFi is changing the way that firms raise financial capital and a c

While foreign direct investments (FDI) are promoted as a vehicle for economic development their environmental consequences are less established. This study tests the hypotheses that 1) FDI led to environmental degradation in form of increased greenhouse gas emissions during Sub-Saharan Africa´s recent growth spurt but that 2) this impact was felt to a lesser extent in countries with a higher quali

Pituitary adenohypophyseal tumors are considered as benign and termed “adenomas”. However, many tumors are invasive and a proportion of these exhibit an “aggressive behavior” with premature death due to progressive growth. Only very rare (0.2%) tumors with metastases are considered malignant and termed “carcinomas”. Taking into account this variability in behavior and the oncological definition, p

Four organizations at Stockholm-Arlanda airport are going through various organizational changes. They are preparing for present and future demands through structural changes, implementation of new technology, training, and other efficiency and capacity improving measures. The change processes will be followed during two years of which this paper presents the baseline measurement. The key factors

Evaluating the trade interdependence among countries is the key to understanding critical metal minerals security. By constructing a novel interdependence network, this paper reveals a more comprehensive world hierarchy and risk system of critical metals, and focuses on the interdependencies between China and the US-led MSP countries before and after the Sino-US trade disputes. The results indicat

It was with great interest that I read “Political Power of Iranian Hierocracies” by János Jany published in Comparative Civilizations Review. Writing about Iranian history is not an easy task because historical points of view have been highly politicized. Such is particularly the case when discussing the Pahlavi dynasty, particularly its founder, Reza Shah Pahlavi, and his successor, Mohammed Reza

The properties of the bootstrap test for restrictions are studied in two versions: 1) bootstrapping under the null hypothesis, restricted, and 2) bootstrapping under the alternative hypothesis, unrestricted. This article demonstrates the equivalence of these two methods, and illustrates the small sample properties of the Wald test for testing Granger-Causality in a stable stationary VAR system by