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This paper presents a survey where some quality requirements that commonly affect software architecture have been prioritized with respect to cost and lead-time impact when developing software platforms and when using them. Software platforms are the basis for a product-line, i.e. a collection of functionality that a number of products are based on. The survey has been carried out in two large sof
Introduction and discussion of Stephen Wolfram's enormous book "A New Kind of Science" from 2002.
Professional cycling combines extensive endurance training with non weight-bearing exercise, two factors often associated with lower bone mineral density (BMD). Therefore BMD was measured with dual-energy x-ray absorptiometry in 30 professional road cyclists (mean (SD) age: 29.1 (3.4) years; height: 178.5 (6.7) cm; weight: 71.3 (6.1) kg; %fat mass: 9.7 (3.2)%; (V) over dotO(2) max: 70.5 (5.5) ml .
Abstract in UndeterminedMarine operations depend on the ability to forecast suddenly appearing storms, and failures often cause great damage. As part of a sea-state alarm study, meteorological forecasts overlaid with satellite observations sent to ships have been found to be a useful too]. In this paper we present a real-time assimilation algorithm that extends this tool using statistical methods.
Popular Abstract in Swedish Varje dag produceras miljardtals nya blodceller, vilka exempelvis har som uppgift att transportera runt syre och försvara kroppen mot olika invaderande bakterier och virus. Dessa olika blodkomponenter har sitt ursprung i sällsynta blodbildande stamceller som återfinns i benmärgen. Dessa är så kallade vävnadsspecifika stamceller och har både förmågan att återbilda sig sj
Popular Abstract in Swedish Akrylatallergi Plastmaterial består av stora molekyler som kallas polymerer samt tillsatsämnen som tillsätts för att modifiera materialets egenskaper. Polymerer bildas när det sker en stegvis reaktion mellan monomerer så att större molekyler bildas. Allergiframkallande ämnen i plastsystem kan vara monomererna, härdarna, modifierarna eller andra tillsatsämnen. AkrylaterAcrylate contact allergy has been frequently reported since the 1970s, with hundreds of articles published in dermatology journals so far. The purpose of this thesis was to investigate the frequency of contact allergy to acrylates / methacrylates in patients with exposure to industrial, dental and nail uses of these substances. We also aimed to investigate the clinical and chemical aspects of pa
By counting the number of upcrossings of the mean level by a stationary Gaussian process one can estimate the mean frequency of the process. Here we present a frequency estimator based on the number of upcrossings of one unknown level hoped to be near the mean, and the percentage of the total observation time spent above the level. This is equivalent to observing upcrossings of a known level in a
We study the behaviour of an interacting particle system, related to the Bak–Sneppen model and Jante’s law process defined in Kennerberg and Volkov (Adv Appl Probab 50:414–439, 2018). Let N≥ 3 vertices be placed on a circle, such that each vertex has exactly two neighbours. To each vertex assign a real number, called fitness (we use this term, as it is quite standard for Bak–Sneppen models). Now f
BACKGROUND: The risk of breast cancer among hypertensive patients who use beta-blockers has attracted attention. However, the evidence is inconsistent and investigation of the dose-specific associations for subtypes of beta-blockers are limited.METHODS: By incorporating Swedish national registers, breast cancer risk was estimated in women with hypertension who used nonselective beta-blockers and b
BACKGROUND: A hydraulic force generated by blood moving the atrio-ventricular plane is a novel mechanism of diastolic function. The direction and magnitude of the force is dependent on the geometrical relationship between the left atrium and ventricle and is measured as the short-axis atrio-ventricular area difference (AVAD). In short, the net hydraulic force acts from a larger area towards a smal
One of the central features of a successful decision support system is the interface. What to provide and how to provide information that later will support the users to make a decision is crucial. With the emergence of mobile business intelligence, the concern about how this technology could increase its user performance in the decision making context and how to deliver these capability to the wo
Abstract Author: Ella-Kari Meyrell Title: Strategy for welfare - a discourse analytical study of culture in health, social care and school organizations Supervisor: Håkan Jönson Assessor: Torbjörn Hjort The aim of this study was to examine how culture (as “the arts”) is constructed as a strategy in welfare work. The empirical material was based upon 160 articles from Swedish printed and web base
Hur kan man utföra riskfyllda experiment i stor skala utan att det innebär en enorm kostnad? Man låter en dator göra en gissning av resultatet! I detta examensarbete presenteras hur ett simuleringsprogram tog sig an storskalig produktion av vätgas, och vilka utmaningar det medförde.A simulation in bioprocess technology was carried out in order to evaluate the accessibility and adequacy of the simulation software SuperProDesigner used on an academic level. This was done by recreating an existing process and studying the results as well as observing the diculties and limitations along the way. The study in question was a biohydrogen production plant consisting of three parts.
En hjälpsam tvilling ska minska svinnet av läkemedel Tänk om du skulle behöva stoppa i dig en massa oönskade, kanske rentav farliga ämnen varje gång du var sjuk. Låter inte särskilt hälsosamt va? Det är just därför som upprening av läkemedel är viktigt. Att ta fram rena läkemedel är inte helt enkelt och kan leda till att läkemedel behöver kastas bort. Genom ett examensarbete vid Lunds UniversitetPreparative chromatography is an important process step for separation and purification of fine chemicals, pharmaceuticals, and other biotechnical products. The technique mainly used in the pharmaceutical and fine chemistry industries is single-column batch chromatography (BC). The major drawback of BC is the trade-off between product purity and process performance. A high purity of the product co
