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Some paradoxes associated with a recent sum rule in scattering theory

This paper reports on some peculiarities associated with a recently published summation rule for scattering of electromagnetic waves. The summation rule states that the extinction cross section integrated over all frequencies is equal to the low-frequency response of the target. Although the summation rule is intriguing by itself, it becomes even more paradoxical when a static conductivity model o

Dynamic Scheduling and Control-Quality Optimization of Self-Triggered Control Applications

Time-triggered periodic control implementations are over provisioned for many execution scenarios in which the states of the controlled plants are close to equilibrium. To address this inefficient use of computation resources, researchers have proposed self-triggered control approaches in which the control task computes its execution deadline at runtime based on the state and dynamical properties

Non-Gods and Gods: A Cosmontological Treatise

Incorporating the conceptual resources of the ontological argument for the existence of God into the underlying rationale of the cosmological ditto, I here present and defend a ‘cosmontological’ synthesis: an a posteriori argument for the existence of an all-perfect GOD: a being who, in virtue of being whatever it is better to be than not to be, is that than which a greater cannot be thought. Cent

Engineering Saccharomyces cerevisiae for mixed-sugar fermentation

Efficient fermentation of all the monomeric sugars derived from lignocellulose is crucial to increase the economy of bioethanol production, since they can account for a considerable fraction of the fermentable sugars in the raw material. This thesis describes the engineering of Saccharomyces cerevisiae strains for improved xylose, galactose and/or arabinose utilization. S. cerevisiae is the prefer

Ready to stop: Socioeconomic status and the fertility transition in Stockholm, 1878-1926

The western fertility decline is arguably the most significant demographic change to have occurred in the past 200 years, yet its causes and processes are still shrouded in ambiguity due to a lack of individual-level longitudinal data. A growing body of research has helped improve our understanding of the decline's causes by examining the development of socioeconomic differences in fertility using

Near-Ultraviolet Observations of HD 221170: New Insights into the Nature of r-Process-rich Stars

Employing high-resolution spectra obtained with the near-UV-sensitive detector on the Keck I HIRES, supplemented by data obtained with the McDonald Observatory 2d-coudé, we have performed a comprehensive chemical composition analysis of the bright r-process-rich metal-poor red giant star HD 221170. Analysis of 57 individual neutral and ionized species yielded abundances for a total of 46 elements