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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

BACKGROUND: Circulating prostate cells can be detected with a reverse transcription-PCR (RT-PCR) assay for prostate-specific antigen (PSA) mRNA. We have developed a new quantitative RT-PCR method for measuring PSA mRNA. METHODS: The method uses a PSA-like internal standard (IS) mRNA that is added into the sample at the beginning of the RNA extraction and coamplified by RT-PCR with the PSA in the s

The acoustic field in an annular gas turbine combustion chamber with thirty burners has been studied using a hybrid approach. The acoustic field was determined by solving an inhomogeneous wave equation. The acoustic sources were provided by a low Mach number flow solver. The main focus was to determine the influence of nonuniform behavior and interactions of neighboring burners. For this reason th

The empirical part of this study is based on a survey of 600 Swedish households and a number of interviews where questions about residential energy behaviour and possible policy instruments for change were raised. The study provides insight into current behavioural patterns and gives a bottom-up perspective on the realistic perspective potentials for change and ways to achieve them. Residential en

Ectomycorrhiza (EM) is a symbiosis between soil living fungi and the roots of woody plants. EM fungal communities are important in forest nutrient cycling, they are species rich and their structures vary between habitats and over time. An EM community in a phosphorus-poor forest was exposed to apatite and EM mycelia actively colonizing ingrowth bags were analyzed. Internal transcribed spacer (ITS)

This paper is concerned with two approaches to designing spaces for knowledge work. The central concern of the first approach is with the use of fictional descriptions of the workplace, in order to stimulate creative thought about new workspaces. The second approach draws on the emerging potential of three dimensional virtual reality as a tool to develop shared visions and to stimulate creativity.

Design science research involves creating and evaluating innovative methods and approaches to be used in design practice. We present an approach to be used in the process of designing Management Support Systems (MSS). The nature of managerial work makes the design, development, and implementation of MSS a major challenge. The MSS literature suggests that determining MSS requirements and specificat

In the drying section of a paper machine, steam heated cylinders are used to control the moisture of the produced paper. In previous work it has been shown that the dynamics from the steam valve to the steam pressure in the cylinder can be described by a linear second order black box process model. In this paper an equivalent model based on first principles is presented. The foundation of this mod

Assignment of the G3m(g) and (b) correlative amino acid residues was performed at the genomic level by direct sequencing of DNA from nine Caucasian individuals. Two oligonucleotide primers were used for subclass-specific enzymatic amplification of a DNA segment comprising a major portion of the second and third constant region domains (CH2 and CH3) fo the human IgG3 heavy chain gene. Comparison of

AimIntraoperative rectal washout is performed to eliminate exfoliated intraluminal cancer cells and thereby decrease the risk of local recurrence. Rectal washout in abdominoperineal resection has not been studied. The aim of this study was to assess the oncological outcome after rectal washout in abdominoperineal resection for rectal cancer and to find evidence as to whether rectal washout should

Background: Community services for Swedish people with intellectual disability (ID) are intended to support self-determination and integrity. Legislation does not allow the use of restrictive or coercive measures. Aim: The aim of this study is to identify the extent of, rationale for, and strategies staff believe would reduce the use of restrictive measures in group homes and daily activities serv

To limit global warming to 1.5°C, fossil fuel use must rapidly decline, but historical precedents for such large-scale transitions are lacking. Here we identify 147 historical episodes and policy pledges of fossil fuel decline in 105 countries and global regions between 1960 and 2018. We analyze 43 cases in larger systems most relevant to climate scenarios. One-half of 1.5°C-compatible scenarios e

NTRU is a lattice-based public-key cryptosystem that has been selected as one of the Round III finalists at the NIST Post-Quantum Cryptography Standardization. Compressing the key sizes to increase efficiency has been a long-standing open question for lattice-based cryptosystems. In this paper we provide a solution to three seemingly opposite demands for NTRU cryptosystem: compress the key size, i