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The author shows that the proofs of \n B. H. Arnold\en [Amer. Math. Monthly 56 (1949), 465--466; MR0031725 (11,195h)] and \n I. Niven\en [ibid. 57 (1950), 246--248; MR0035738 (12,4c)] of the fundamental theorem of algebra, based on the Brouwer fixed point theorem, are incomplete. Both Arnold and Niven recognized that the proofs are invalid, and they remarked that no easy remedy seems to save their
Can we be mistaken or ignorant about the meaning of our own words? This dissertation explores this question. More specifically it investigates to what extent and in what sense, if at all, the semantic meaning of religious and existentially important words – like ‘God’, ‘friendship’, ‘justice’ or ‘life’ – can be recognition-transcendent to the competent user of them. The possibility of words having
Protein S is a cofactor of activated protein C; together they function as a regulator of blood coagulation. A human liver cDNA library constructed in bacteriophage lambda gt11 was screened with DNA fragments from a full-length bovine cDNA clone encoding protein S. Several cDNA clones were isolated and sequenced. The combined cDNA sequences encoded the mature protein and 15 residues of the leader s
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BACKGROUND: Patients receiving intraoperative ventilation during general anesthesia often have low end-tidal CO2 (etCO2). We examined the association of intraoperative etCO2 levels with the occurrence of postoperative pulmonary complications (PPCs) in a conveniently-sized international, prospective study named 'Local ASsessment of Ventilatory management during General Anesthesia for Surgery' (LAS
Purpose – This study explores how a public client as a focal firm enables value co-creation through orchestration that includes navigating and bridging knowledge, business and innovation ecosystems. Design/methodology/approach – The research is based on qualitative methods, with 25 semi-structured interviews being conducted with client representatives and project partners from four completed const
PURPOSE OF REVIEW: To summarize and critically interpret new evidence (from the last 12-18 months) on the associations between obesity and breathlessness, including epidemiology, physiological mechanisms, diagnostic challenges, and treatment approaches.RECENT FINDINGS: Multiple large cohorts confirm that obesity is one of the strongest independent predictors of exertional breathlessness. Recent wo
The electrification of the transportation sector is a central strategy for decarbonization, yet it raises concerns about the capacity of existing electric power grids to meet increasing demand. This thesis investigates the interaction between large-scale electrified vehicle fleets and the electric power system under the assumption of full transport electrification. The focus is on assessing the re
In this work, we model the basic mechanisms of the interaction between phase-transformations and plasticity within a one-dimensional constitutive framework. Efficient algorithms are presented, facilitating to solve the underlying evolution equations with high numerical stability at low numerical costs. Furthermore, a family of functions covering physically reasonable classes for the inheritance of
This works deals with the degradation of a group of recalcitrant compounds known as toxaphene. Toxaphene is a complex mixture of chlorinated compounds including hexa- and octachlorocamphenes, hepta-, nona- and decachlorobornanes. Some components of toxaphene are very persistent while others are degraded rapidly by both abiotic and biotic processes. Not all components of toxaphene have been identif
The objective of this study has been to create an online system for condition monitoring and diagnosis for a combined heat- and power plant in Sweden. This system consists of artificial neural network models, representing each main component of the combined heat- and power plant, accompanied with a graphical user interface. The artificial neural network models are integrated on a power generation
Popular Abstract in Swedish Introduktion till nukleotider Nukleotider är viktiga byggstenar för DNA och RNA. Det finns två typer av nukleotider, puriner och pyrimidiner. Nukleotider kan även fungera som signalmolekyler inom eller mellan celler. Dessutom kan många encelliga mikroorganismer, så som jäst och bakterier, använda dem som kvävekälla, genom att bryta ner dem och utvinna kvävet, som sedan Pyrimidines are important precursors for nucleic acids, and constantly synthesized and degraded in the cell to maintain a balanced supply. Many microoganisms can also extract the nitrogens from the pyrimidine ring, and use them as a nitrogen source when “preferred” sources are absent. Four different pathways, by which pyrimidines can be degraded, are known. I have studied the last discovered, but
The new challenge of the Gas Turbine industry is to develop new technologies for meeting electricity demand growth and reducing harmful emissions. Thus a better understanding of the combustion phenomenon and an improvement in simulation capabilities are needed. Large Eddy Simulation tools brought the hope of meeting these two conditions and enabling the design of safe and clean burners. In the pre
