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A cultivation strategy for the production of two truncated thermostable recombinant xylanases (Xyn1ΔN and Xyn1ΔNC) was developed. Fed-batch cultivations of Escherichia coli strain BL21(DE3) with a controlled exponential glucose feed led to high specific production of the recombinant proteins. Addition of complex nutrients (e.g. Tryptone Soya Broth (TSB)) to the media were shown to increase both th
Double U-pipe boreholes are the second most used type of ground heat exchangers after single U-pipe boreholes. The borehole thermal resistance is a key design and performance parameter for the double U-pipe boreholes. Another parameter that is particularly important for double U-pipe boreholes is the internal thermal resistance between the U-pipes. There is, however, a general lack of methods that
Aims To investigate practice effects in a test-retest situation, where vibration perception thresholds (VPT) were measured in healthy subjects using a multi-frequency test method. Methods In eight consecutive tests, VPTs were tested in the pulps of the index and little fingers at seven frequencies (8, 16, 32, 64, 125, 250 and 500 Hz). Subjects were twenty healthy adults aged 26 to 65 years (mean 4
The article is an introduction to the festival 'Visioner av Nuet' Stockholm, 1966. The article focuses on the historical event, and contextualizes it to both the discussions on art and technology at the time, and to the planned collaborations with the prominent artists from the American group E.A.T. such as Billy Klüver, John Cage, Robert Rauchenberg and Öyvind Fahlström, - collaborations that nev
Background: The use of analgesic antipyretics (ANAP) in children have long been a matter of controversy. Data on their practical use on an individual level has, however, been scarce. There are indications of possible effects on glucose homeostasis and immune function related to the use of ANAP. The aim of this study was to analyze patterns of analgesic antipyretic use across the clinical centers o
PURPOSE: The purpose of this work was to develop a new family of test algorithms for computerized static threshold perimetry which significantly reduces test time without any reduction of data quality.METHODS: A comprehensive visual field model constructed from available knowledge of normal and glaucomatous visual fields is continuously updated during testing. The model produces threshold estimate
I Sverige tillämpas traditionsprincipen vid omsättningsöverlåtelser. Denna princip innebär att ett köpeavtal inte är tillräckligt för att en köpare ska erhålla sakrättsligt skydd gentemot säljarens borgenärer. I svensk rätt krävs det en fysisk besittningsförändring av den köpta egendomen eller ett rättsligt rådighetsavskärande för att en köpare ska erhålla borgenärsskydd. Principen har tillämpats
This thesis investigates whether or not the Chinese growth is sustainable in the longer term. The two major economies China and India share several common features in terms of e.g. growth and size, as well as fundamental differences regarding factors such as institutions and politics. There is a possibility that India, a democratic country, possibly, in the longer time horizon will overtake China
Popular Abstract in Swedish Bröstcancer är kvinnans vanligaste cancerform och globalt sett den cancer som leder till flest dödsfall. Bröstcancerscreening med mammografi används därför i syfte att hitta cancern tidigt. En tidigt upptäckt cancer har oftast en bättre prognos med möjlighet att minska dödligheten i bröstcancer. Mammografitekniken är dock behäftad med vissa begränsningar vad gäller känsAbstract: Mammography is currently the established method in breast cancer screening, although the sensitivity is known be affected by overlapping tissue concealing tumours. Breast tomosynthesis takes advantage of multiple exposures at different angles reducing the negative effect of obscuring tissue. The aim of this thesis was to investigate the use of tomosynthesis in breast imaging with a spec
The Image of Sweden abroad usually comes with positive connotations. Some of Sweden’s perceived strengths, e.g. being open, authentic, caring, and innovative, are represented in the Strategy for the Image of Sweden (2013). However, changing circumstances, such as the implementation of internal border controls as a result of the migration crisis beginning in autumn 2015, along with a changing polit
This thesis will investigate the possibility to have SU(2) gauge fields as the source to the Cosmic Inflation and/or to the Dark Energy. It will be explained that, under certain conditions, the Universe can be filled with vector fields without violating its isotropy. Those conditions are naturally fulfilled within the SU(2) gauge theory. Both Einstein's equations and the equations of motion
Alla människor har ett värde som ligger i deras egenskap av att vara just människor. Men att vara människa är inte vad vi aktivt blir definierade som utan i första hand kan identiteter såsom ”elev” komma. Syftet med min uppsats är att undersöka huruvida den svenska grundskolan har en fullständig potential till att respektera sina elevers människovärde trots att de främst blir sedda som elever. FörEvery human being has a value in itself solely on the ground that they are human beings. But a human being is not what you are first and foremost defined as, but rather, for example a “pupil”. The purpose of this essay is to examine whether the Swedish elementary school has the full potential of respecting its’ pupils’ human worth. In order to achieve this I have intertwined threads from philosoph
The thesis work is based on power saving techniques to enhance the battery life of Machine Type Communication devices. The basic principle behind the introduced methods to save energy is to allow the Machine Type Communication devices only to perform its activities for a short time and go to sleep or inactive mode for rest of the time. The existing techniques save a part of device energy consumpti
This article explores lesson enactments as co-constitutive of human-technology relationality in everyday schooling, rather than neutral backdrops for educational activities. In doing so, the article introduces maintenance as its key concept, drawing on insights from maintenance studies and actor-network theory (ANT). Being both theoretically and empirically informed, maintenance means reconsiderin
Det här arbetet undersöker tillgänglighet till miljöanpassad teknik i utvecklingsländer och hur tillgängligheten kan påverkas av det patenträttsliga systemet. Spridning av miljöanpassad teknik har länge ansetts vara en viktig komponent för stävjandet av klimatförändringar. Det här har föranlett en debatt inom ramen för internationella forum kopplade till Klimatkonventionen och TRIPS. Frågan som This paper investigates the availability of environmentally sound technology in developing countries and how the availability can be affected by patent law. Availability of environmentally sound technologies has for a long time been considered important as a mean to prevent climate change. This has led to a debate, both within UNFCCC and TRIPS, about what role patent rights play for the availabi
