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The dynamics of ethanol production/consumption in baker's yeast were studied under feed- rate controlled conditions. The yeast was grown on molasses in an 8-l fed-batch reactor and experiments were done at cell concentrations between 5 and 65 g l−1. Small changes in the feed rate were made around a feed rate corresponding to the critical growth rate, at which the yeast cell metabolism switches bet

In this paper some of the numerical problems associated with computing the generalized inverse of a matrix are discussed and illustrated by a detailed analysis of an iteration of Ben-Israel and Cohen.

Aim: This study investigates how often bowel continuity was restored after anastomotic leakage in anterior resection for rectal cancer and assesses the clinical factors associated with permanent stoma. Method: The Swedish Colorectal Cancer Registry was used to identify cases of anastomotic leakage registered in southern Sweden between January 2001 and December 2011. Patient characteristics, surgic

The ever-increasing consumption of natural resources required for the production of consumer electronics, and the growing amount of electronic waste, underline the importance and urgency of extending the lifespan and use of such products. Information and Communication Technology (ICT) remanufacturing is a growing industry, which nonetheless faces several barriers. Consumers often have a perception

Detta kapitel analyserar vad man kan kalla automatiserad policyimplementering på digitala plattformar och därmed kombinationen av normativitet och plattformisering. I kapitlet fokuseras betydelsen av de automatiserade verktyg där varianter av artificiell intelligens och maskininlärning används för att moderera och effektivisera olika informationsflöden. Här tecknas tre kategorier där plattformar a

Denna rapport ger en översikt av linjär optimal stokastisk kontroll. De fundamentala problemen formuleras och de centrala resultaten gives, utan bevis men med utförliga fysikaliska tolkningar. Användandet av siffermaskiner både för syntes och implementering behandlas. Vidare diskuteras några praktiska problem förenade med det optimala systemets realisering: val av samplingstid, reelltidsberäkning

The public sector is showing increased interest in Mobility as a Service (MaaS), as its introduction and market penetration is proposed to potentially disrupt the personal transport system. However, involved public actors are approaching MaaS very differently. This paper applies a neo-institutional perspective to study the activities of public actors in the ongoing development of MaaS in Finland a

Dispersion forces such as van der Waals forces between two microscopic particles, the Casimir-Polder forces between a particle and a macroscopic object, or the Casimir force between two dielectric objects are well studied in vacuum. However, in realistic situations the interacting objects are often embedded in an environmental medium. Such a solvent influences the induced dipole interaction. With

Earth system models (ESMs) are key tools for providing climate projections under different scenarios of human-induced forcing. ESMs include a large number of additional processes and feedbacks such as biogeochemical cycles that traditional physical climate models do not consider. Yet, some processes such as cloud dynamics and ecosystem functional response still have fairly high uncertainties. In t

With increasing emphasis on the control of greenhouse gases, power plants may move towards oxy-fuel technologies rather than air-fired plants. This move leads to a change in the feed to the desulfurization unit, which also needs to be adapted along with the power plant. Most existing plants already have functioning desulfurization units, which need to be retrofitted for the new conditions. In the

Voices today from the eighties – constructing peaceful citizensThe increased interest for questions of survival, focused in the fear for a nuclear war, also became the start for university courses and of Action research both in public schools, in Teacher Education and in the Universities in Sweden. The article is arguing that there are roots back to the 1960s and a continuity within Peace Educatio

Production of cell-laden hydrogel droplets as miniaturized niches for 3D cell culture provides a new route for cell-based assays. Such production can be enabled by droplet microfluidics and here we present a droplet trapping system based on bulk acoustic waves for handling hydrogel droplets in a continuous flow format. The droplet trapping system consists of a glass capillary equipped with a small

The emerging concept of sustainable welfare attempts to integrate environmental sustainability and social welfare research. Oriented at a mid-term re-embedding of Western production and consumption norms into planetary limits, it suggests the development of “eco-social” policies in the rich countries. In this theoretical context, this article empirically investigates the relationships between atti

Background & Aims: Glucagon-like peptide-2 (GLP-2) is a 33-amino acid peptide hormone secreted by enteroendocrine cells in response to nutrient ingestion. GLP-2 stimulates crypt cell proliferation leading to expansion of the mucosal epithelium; however, the mechanisms transducing the trophic effects of GLP-2 are incompletely understood. Methods: We examined the gene expression profiles and gro

One way of valorizing the lignin waste stream from the pulp and paper industries is depolymerizing it into low-molecular-mass compounds (LMMC). However, a common problem in the depolymerization of Kraft lignin is the low yields of small aromatic molecules obtained. In the present work, the combination of the repeated depolymerization of lignin and the separation of LMMC from depolymerized lignin t