Entropy production in the early-cosmology pionic phase

We point out that in the early universe, for temperatures in the approximate interval 175-80 MeV (after the quark-gluon plasma), pions carried a large share of the entropy and supported the largest inhomogeneities. Thus, we examine the production of entropy in a pion gas, particularizing to inhomogeneities of the temperature, for which we benefit from the known thermal conductivity. We finally put that entropy produced in relaxing such thermal inhomogeneities in the broad context of this relatively unexplored phase of early-universe cosmology.Comment: 10 pages, 10 figures

Enabling Edge Computing Using Container Orchestration and Software Defined Networking

With software-defined wide-area networks (SD-WAN) being increasingly adopted, and Kubernetes becoming the de-facto container orchestration tool, the opportunities for deploying edge-computing applications running over a SD-WAN scenario are vast. In this context, a service discovery function will help developing a dynamic infrastructure where clients are able to seek and find particular services. Service discovery also enables a self-healing network capable of detecting the unavailable services. Most of the research in the service discovery field focuses in the discovery of cloud-based services over software-defined networks (SDN). A lack of research in containerized service discovery over SD-WAN is evident. In this thesis, an in-house service discovery solution that works alongside a container orchestrator for allowing an improved traffic handling and better user experience through containerized service discovery and service requests redirection is developed. First, a proof-of-concept SD-WAN topology was implemented alongside a Kubernetes cluster and the in-house service discovery solution. Next, the implementation's performance is tested based on the time required for discovering whether a service has been created, updated or removed. Finally, improvements in node distance computation, local breakout support and the usage of data plane programmability are discussed

The Revolting Monster - A Consideration of Existentialist Themes in Mary Shelley\u27s Frankenstein Through a Comparison to Albert Camus\u27 The Stranger

This Master’s thesis is concerned with analyzing key themes and ideas in Mary Shelley’s Frankenstein through an existentialist lens which is made possible through a comparison to themes and ideas in Albert Camus’ The Stranger. I aim to make a contribution to my field by fulfilling a comparison that has long been made since the late 1960s when conversations about British Romanticism and Existentialism were still common. The purpose of my first chapter is to elucidate a new argument about the relationship between these two novels. There is a discernable element of Camusian Revolt exhibited by the Creature in some of the most riveting passages of Frankenstein; this element is all the more clearer when placed in conversation with the actions of Meursault, the protagonist of The Stranger. Through more specific examples, and a large reliance on the historical context of both novels that this project is concerned with, I am able to draw connections that go further than thematic similarities and show the relevance of these ideas to readers in our time. The second chapter consists of historical context that sets up an understanding of the reception of Frankenstein and the ensuing consequences of this novel for ruling body interested in maintaining a permanent underclass within the population. The third chapter examines the species of Revolt within Frankenstein by comparing it to The Stranger in order to reach conclusions about the significance of these themes today. The final chapter is an observation about the behavior of revolt modeled by the authors discussed in this thesis. It proposes that the act of writing and creating art is in itself an act of revolt which is the true message the authors intended to convey. It also argues that the medium of the novel is the most effective method of expression for revolt because it taps into human experience in a way no other distinct work of art can

Reducing Vulnerability through Reintegration: The Case of the Syrian Refugees in Jordan.

Abstract: The Syrian Civil War has claimed at least two hundred thousand lives, with over four million people having now fled Syria. Of those, about six hundred thousand have registered with the UNHCR in Jordan, with an estimated eighty thousand others living in Jordan’s Zaatari Camp. In view of the foregoing, this research attempts to analyze the vulnerability of Syrian Refugees living in Jordan in two very different environments: the Zaatari Camp and non-camp communities. We conduct a covariate matching analysis to compare the differences in socioeconomic conditions and well-being among the heads of Syrian households. Our results suggest that notwithstanding the limited labor opportunities for Syrian families within Zaatari Camp, the variety and quality of attentions within the camp environment provides a platform that helps them cope with some of the uncertainties and challenges caused by the displacement from their country of origin, while they seek full reintegration in Jorda

Nonlinear Exchange Rate Predictability

We study whether the nonlinear behavior of the real exchange rate can help us account for the lack of predictability of the nominal exchange rate. We construct a smooth nonlinear error-correction model that allows us to test the hypotheses of nonlinear predictability of the nominal exchange rate and nonlinear behavior on the real exchange rate in the context of a fully specified cointegrated system. Using a panel of 19 countries and three numeraires, we find evidence of nonlinear predictability of the nominal exchange rate and of nonlinear mean reversion of the real exchange rate. Out-of-sample Theil's U-statistics show a higher forecast precision of the nonlinear model than the one obtained with a random walk specification. Although the robustness of the out-of-sample results over different forecast windows is somewhat limited, we are able to obtain significant predictability gains--from a parsimonious structural model with PPP fundamentals--even at short-run horizons.Exchange rates; Predictability; Nonlinearities; Purchasing power parity

Energy conversion in Purple Bacteria Photosynthesis

The study of how photosynthetic organisms convert light offers insight not only into nature's evolutionary process, but may also give clues as to how best to design and manipulate artificial photosynthetic systems -- and also how far we can drive natural photosynthetic systems beyond normal operating conditions, so that they can harvest energy for us under otherwise extreme conditions. In addition to its interest from a basic scientific perspective, therefore, the goal to develop a deep quantitative understanding of photosynthesis offers the potential payoff of enhancing our current arsenal of alternative energy sources for the future. In the following Chapter, we consider the trade-off between dynamics, structure and function of light harvesting membranes in Rps. Photometricum purple bacteria, as a model to highlight the priorities that arise when photosynthetic organisms adapt to deal with the ever-changing natural environment conditions.Comment: Chapter, to appear in Photosynthesis 2011, INTEC

Military Action to Recover Occupied Land: Lawful Self-defense or Prohibited Use of Force? The 2020 Nagorno-Karabakh Conflict Revisited

In September 2020, heavy fighting erupted between Armenia and Azerbaijan in and around Nagorno-Karabakh, a region of Azerbaijan long controlled by Armenia. After two months of military confrontations, a tripartite ceasefire was concluded, drastically altering the pre-existing territorial status quo. The Second Nagorno-Karabakh War brings to light a fundamental question for international law on the use of force—and one that has received limited attention in legal doctrine. The question is this: when part of a State’s territory is occupied by another State for an extended period of time, can the former still invoke the right of self-defense to justify military action aimed at recovering its land? The present article provides a broad appraisal of this question, examining the arguments for and against. In particular, it examines the conditions of self-defense—and whether occupation might be construed as a “continuing” armed attack. It subsequently addresses the relevance of the principle of the non-use of force to settle territorial disputes as well as the role of armistice and ceasefire agreements, before turning to relevant State practice. Ultimately, the authors agree with the Ethiopia Eritrea Claims Commission that “any exception to the prohibition of the threat or use of force for territory that is allegedly occupied unlawfully would create a large and dangerous hole in a fundamental rule of international law.

Memory in the Photon Statistics of Multilevel Quantum Systems

The statistics of photons emitted by single multilevel systems is investigated with emphasis on the nonrenewal characteristics of the photon-arrival times. We consider the correlation between consecutive interphoton times and present closed form expressions for the corresponding multiple moment analysis. Based on the moments a memory measure is proposed which provides an easy way of gaging the non-renewal statistics. Monte-Carlo simulations demonstrate that the experimental verification of non-renewal statistics is feasible.Comment: 5 pages, 3 figure

Reduction of Cold-Start Emissions through Valve Timing in a GDI Engine

This work examines the effect of valve timing during cold crank-start and cold fast-idle (1200 rpm, 2 bar NIMEP) on the emissions of hydrocarbons (HC) and particulate mass and number (PM/PN). Four different cam-phaser configurations are studied in detail: 1. Baseline stock valve timing. 2. Late intake opening/closing. 3. Early exhaust opening/closing. 4. Late intake phasing combined with early exhaust phasing. Delaying the intake valve opening improves the mixture formation process and results in more than 25% reduction of the HC and of the PM/PN emissions during cold crank-start. Early exhaust valve phasing results in a deterioration of the HC and PM/PN emissions performance during cold crank-start. Nevertheless, early exhaust valve phasing slightly improves the HC emissions and substantially reduces the particulate emissions at cold fast-idle. The combined strategy consisting of late intake and early exhaust phasing shows a considerable reduction in both the cold crank-start HC and PM/PN emissions of 30%. In fast idle, the HC and PM emissions respond differently to the different valve timing strategy. The combined late IVO and early EVC configuration with moderate combustion phasing retard gives the best HC and PM emissions and reasonable engine stability.Consortium on Engine and Fuels Researc