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Resource provisioning for applications hosted in the cloud is a difficult task due to inherent performance variability in the infrastructure. Control theory has proven to be an efficient tool to increase the predictability of cloud applications. However, a prerequisite for a successful control design is an adequate model of the involved dynamics. In this paper we focus on modeling of controlled se
An activated catalyst prepared from a mixture of nickel nitrate hexahydrate with zinc in dry ethanol under reflux showed exceptional catalytic activity for the reduction of nitroarenes to the corresponding azoxy compounds exclusively in the presence of hydrazine monohydrate. However, when nickel nitrate hexahydrate was replaced by nickel chloride dihydrate with zinc, only the aminoarenes were form
Abstract: For patients with locally advanced head and neck tumours or other defects, the preferred curative treatment is extensive reconstructive surgery using free microvascular flap(s), oftentimes followed by postoperative radiotherapy. The procedure offers superior functional and aesthetic advantages, but the treatment course is long and complex and burdened with a significant risk of complicat
This study explores a novel approach to utilizing waste biomass for syngas production, with the potential for carbon sequestration. An integrated biomass conversion process combining pyrolysis, CO2 reforming, and MILD combustion is proposed. In the proposed system, the bio-oil obtained from pyrolysis can be used in a reforming step, converting it into syngas with a suitable H2/CO ratio for chemica
Arabinoxylan (AX) with varying arabinose to xylose (A/X) ratios of 0.85, 0.57 and 0.39 was extracted from wheat bran, and the conformations of the AX polysaccharides dispersed in water were investigated using small-angle X-ray scattering. The persistence length (Lp) and the conformation statistics (expressed by the Flory exponent v or the mass fractal) of the AX varied with their A/X ratios. The L
In this study we investigate risk management trade-offs by evaluating how key persons at workplaces with a potential for exposure to hexavalent chromium (Cr(VI)) reason about what is practically possible in terms of exposure reduction. While the included companies (N = 14) represented different types of processes and work-tasks, interviewees all identified that many types of hazards compete for at
We study the problems of computing the Voronoi diagram and a triangulation of a set of n2 points with O(logn)-bit coordinates in the Euclidean plane in a substantially sublinear in n number of rounds in the congested clique model with n nodes. First, we observe that if the points are uniformly at random distributed in a unit square then their Voronoi diagram within the square can be computed in O
Previous data have indicated that IL-21 and/or IL-21R are crucial for the differentiation of naïve T cells into Th17 cells and also play a key role in the development of autoimmune disease. Given this, IL-21 and/or IL-21R are potential targets for therapy of such diseases; however, a study in this issue of the European Journal of Immunology, provides a new twist in the story as it is now shown tha
Relations between Generalized LDPC codes, nonbinary LDPC codes, and woven graph codes are considered. Focus is on rather short codes suitable, for example, for coding control signaling information in mobile communications. In particular, codes of lengths less than 200 bits are studied. Low-complexity near maximum-likelihood (ML) decoding for these classes of codes is introduced and analyzed. Frame
We examined overall and specific cancer risks among Swedish subjects who had been hospitalised one or more times for psoriasis. A database was created by identifying such patients from the Swedish Hospital Discharge Register and linking them with the Cancer Registry. Follow-up of patients was carried out from the last hospitalisation through 2004. A total of 15 858 patients were hospitalised for p
There is little systematic research on the cross-cultural validity of the dissociative disorders, especially in non-western countries. This study evaluates the fit of the DSM-IV classification and concepts of these disorders with local concepts, experiences and local presentations in south-west Uganda. We conducted focus group discussions with medical students, traditional healers, religious leade
OBJECTIVE: A diet rich in whole grain cereals is suggested to protect against type 2 diabetes and facilitate body weight regulation. However, little is known about the impact of different cereals and the underlying mechanisms. The objective of this study was to compare the long-term metabolic effects of diets supplemented with whole grain wheat or whole grain rye in the C57BL/6J mouse. METHODS: Mi
Popular Abstract in Swedish Inom science och technology centre (STC)-rörelsen finns det uttalade mål och ambitioner att öka allmänhetens intresse och förståelse för naturvetenskap. Samtidigt ifrågasätter många forskare de val som görs vad gäller utställningarnas innehåll och hävdar att det är vanligt att en alltför produktorienterad syn på naturvetenskap presenteras. Men vilka bilder och aspekter Within the science and technology centre (STC) movement there exists explicit aims and ambitions to enhance visitors’ interest in and knowledge about science. Meanwhile, several researches question the choice of the scientific content in exhibitions when arguing that a too unproblematic view of science commonly is presented. But what images and aspects of science are visitors actually confronted w
Accurate methods to preoperatively characterize adnexal tumors are pivotal for optimal patient management. A recent meta-analysis concluded that the International Ovarian Tumor Analysis (IOTA) algorithms such as the Simple Rules are the best approaches to preoperatively classify adnexal masses as benign or malignant. We sought to develop and validate a model to predict the risk of malignancy in ad
NOD2, a cytosolic receptor for the bacterial proteoglycan fragment muramyl dipeptide (MDP), plays an important role in the recognition of intracellular pathogens. Variants in the bacterial sensor domain of NOD2 are genetically associated with an increased risk for the development of Crohn disease, a human chronic inflammatory bowel disease. In the present study, global protein expression changes a
In 2007, five whole genome-wide association studies were published on the genetics of type 2 diabetes mellitus (T2DM), followed by the discovery of 11 genes consistently associated with T2DM. This breakthrough provided the first glimpses of a complete picture of the disease's genetic complexity. Currently, we are only beginning to understand how DNA methylation, histone acetylation, and deacetylat
Fungi, such as Candida spp., are commonly found on the skin and at mucosal surfaces. Yet, they rarely cause invasive infections in immunocompetent individuals, an observation reflecting the ability of our innate immune system to control potentially invasive microbes found at biological boundaries. Antimicrobial proteins and peptides are becoming increasingly recognized as important effectors of in
The association between childhood environmental tobacco smoke (ETS) exposure and adult cancer risk is controversial; we examined this relationship in never smokers within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Over an average of 10 years, 8,372 cases of cancer were diagnosed in 112,430 never smokers in EPIC. Childhood ETS was self-reported by participants a
