Filtyp
The aim of the current study is to investigate whether Swedish secondary school students perceive mathematics as a female, male or gender-neutral domain. A sample of 1300 students in two age groups, 15- and 17-years, answered a questionnaire and about 50 students participated in interviews. The main part of the inquiry form consists of Who and mathematics, an attitude scale recently developed by o
A wall-jet microbial fuel cell (MFC) was developed for the monitoring of anaerobic digestion (AD). This biofilm based MFC biosensor had a character of being portable, short hydraulic retention time (HRT) for sample flow through and convenient for continuous operation. The MFC was installed in the recirculation loop of an upflow anaerobic fixed-bed (UAFB) reactor in bench-scale where pH of the ferm
Popular Abstract in Swedish Framsteg inom neonatal intensivvård har ökat överlevnaden hos extremt för tidigt födda barn. Prognosen för dessa barn är generellt god, men 15-20 % av drabbas av en större hjärnblödning där blod tränger in i hjärnans hålrum, vilket innebär en sämre prognos och en ökad dödlighet. Av barnen som överlever drabbas hälften av en ökad huvudomfångstillväxt på grund av en tilltIntraventricular haemorrhage (IVH) is the most common brain lesion in preterm infants and is most commonly seen in the sickest children, with 15-20% of very preterm infants developing IVH. The mortality of infants with severe IVH is 20-50 % in the neonatal period and over 50 % of surviving infants develop post-haemorrhagic ventricular dilatation (PHVD) and 40-80 % develop severe neurological impai
A new set of data and estimates of historical national accounts for Sweden is concluded with the project Structural Change in the Swedish Economy, 1800-1980: Construction and Analysis of National Product Series. This article provides a short overview of earlier efforts, beginning in the 1930s, to construct historical national accounts and an account of the present project. The new estimates result
Vehicle-to-vehicle (VTV) wireless communications have many envisioned applications in traffic safety and congestion avoidance, but the development of suitable communications systems and standards requires accurate models for the VTV propagation channel. In this paper, we present a new wideband multiple-input-multiple-output (MIMO) model for VTV channels based on extensive MIMO channel measurements
This essay reviews work in sociology and cognate fields regarding pharmaceutical marketing and its regulation. In particular, it considers how this literature contributes to a better understanding of the process of pharmaceuticalization, defined as “the translation or transformation of human conditions, capabilities, and capacities into opportunities for pharmaceutical intervention.” The review ad
The new generation of mobile devices, such smartphones and tablets, make users no longer constrained to traditional devices, such as PCs and laptops, in order to access needed information. This has given rise to an innovation in Business Intelligence (BI) coined mobile BI, which is currently embraced by different organizations. Information systems (IS) innovations are in general accompanied by “bu
A GH3 beta-glucosidase (BGL) from Penicillium brasilianum was purified to homogeneity after cultivation on a cellulose and xylan rich medium. The BGL was identified in a genomic library, and it was successfully expressed in Aspergillus oryzae. The BGL had excellent stability at elevated temperatures with no loss in activity after 24 h of incubation at 60A degrees C at pH 4-6, and the BGL was shown
Numerous microscopic studies of coccidian oocysts from avian feces have become the basis for species identification. In contrast, molecular studies of wild birds' Coccidia are still in their infancy and are mostly based on DNA extracted from the blood stages of these parasites. Linking microscopic and molecular data requires a method that reliably extracts DNA from single oocysts with parallel det
We review approaches to predicting carbon and nitrogen allocation in forest models in terms of their underlying assumptions and their resulting strengths and limitations. Empirical and allometric methods are easily developed and computationally efficient, but lack the power of evolution-based approaches to explain and predict multifaceted effects of environmental variability and climate change. In
An instrumental and experimental setup for soft x-ray spectroscopy meeting the requirements of a closed source for radioactivity is described. The system consists of a vacuum sealed cell containing the sample, mounted on a tubing system to ensure compatibility with most standard manipulators. The soft x rays penetrate a thin x-ray window separating the interior of the cell from the vacuum in the e
Popular Abstract in Swedish Normalt sett skyddar immunförsvaret oss mot farliga och främmande ämnen. En cancercell uppfattas oftast som något defekt och farligt som måste elimineras. Men då och då lyckas cancerceller överleva och manipulerar då vårt immunförsvar till det sämre för oss. Cancer är ett samlingsnamn på sjukdomar orsakade av en ansamling av genetiska förändringar. Dessa förändringar Immune cells play paradoxical roles in cancer progression. On one hand, the immune system protects us against tumor development by recognizing and eliminating cancerous cells. On the other hand, tumor-associated immune cells can contribute to tumor progression by secreting growth factors as well as immunosuppressive, pro-angiogenic and/or pro-metastatic mediators. In this thesis we identified a f
The results of structural and magnetic characterization of GaMnSb layers grown on GaSb(0 0 1) and GaAs(1 1 1) substrates are presented. The presence of hexagonal, highly oriented MnSb inclusions embedded in GaSb matrix has been demonstrated. The lattice parameters of these inclusions were the same as those for bulk MnSb for the layers grown on GaSb(1 0 0) substrate while for the layers grown on Ga
Background Previous research has established that direct and indirect forms of aggression differ in their association with gender and type of psychological difficulties. One purpose of the present study was to test if the same applies to direct and indirect victimization. A second purpose was to study these associations not only cross-sectionally (as in most previous research) but also longitudina
Background: Patient enrolment into clinical trials is based on oral information and informed consent, which includes an information sheet and a consent certificate. The written information should be complete, but at the same time risks being so complex that it may be questioned if a fully informed consent is possible to provide. We explored patient representatives' views and perceptions on the wri
In birds, molt duration is an important trait that can affect plumage functionality and, consequently, the fitness of individuals. However, knowledge about the factors that affect variation in molt speed is sparse, mostly because of the methodological difficulties of studying avian molt. We used a ptilochronology-based approach to estimate the rate at which tail feathers were produced during molt
In a previous study, we found that juvenile northern wheatears (Oenanthe oenanthe) exposed to a magnetic displacement to the west of their natural migration route increased their body mass. The total intensity and inclination used for the western displacement may also have been interpreted as northern compared to the experimental site (stronger total field intensity and steeper inclination angle).
