Filtyp
In this paper we describe a systematic study on long-term evolution of residential broadband Internet traffic covering 5 calendar years from June 2007 to May 2011. The traffic evolution is characterized both in the term of the total traffic volume, as well as the traffic volumes and shares for different application categories (file sharing, video streaming etc.), with the focus on comparing the tr
Internationellt sett har de fackliga organisationerna i Sverige på flera sätt mycket goda förutsättningar att verka för hållbara arbetsplatser. Hit hör den höga organisationsgraden, den välutbyggda fackliga arbetsplatsorganisationen, en relativ frånvaro av facklig rivalitet samt den långa traditionen av samarbete mellan arbetsmarknadens parter. Sedan 1990-talet förefaller facken på många arbetspla
Abstract in UndeterminedContrary to the notion that altering our ordinary state of consciousness necessarily produces delusional beliefs and is generally deleterious, various findings in psychology and other disciplines suggest that 1) the ordinary state of consciousness does not provide an accurate mapping of reality and 2) alterations of consciousness can have various positive functions. Among t
We propose a novel approach to estimation, where each individual observation in a random sample is used to derive an estimator of an unknown parameter using the maximum likelihood principle. These individual estimators are then combined as a weighted average to produce the final estimator. The weights are chosen to be proportional to the likelihood function evaluated at the estimators based on eac
I en kärnfull artikel i Läkartidningen ger professor Håkan Olsson (”HO”) sin syn på de problem patentering inom bioteknikområdet ger upphov till. Artikeln aktualiseras av att ett amerikanskt företag erhållit patentskydd, som begränsar cancerforskningen och hämmar sjukvården. Inlägget präglas av en forskares oro inför de problem som en teknisk lagstiftning skapar. Enligt HO kräver patentinnehavaren
Popular Abstract in Swedish Lipasadsorption till fasta ytor studerades med hjälp av in situ ellipsometri. Samtidigt mättes aktiviteten av det adsorberade lipaset in situ genom hydrolys av p-nitrofenylacetat. Adsorption mättes till metylerade kiseloxidytor med varierande grad av metylering samt till rent kiseloxid. Olika lipaser studerades; lipas från Humicola lanuginosa (HLL)vildtypen (WT) och enThe adsorption of lipases to solid surfaces was studied by means of in situ ellipsometry. In addition, the activities of the adsorbed lipases were measured in situ, by the hydrolysis of p-nitro phenyl acetate. Adsorption was made to methylated silica surfaces with varying degree of wettability as well as to clean silica surfaces. Lipases from Humicola lanuginosa (HLL) the wild-type (WT) and a m
On the trend that Swedish feature films are increasingly shot outside of Stockholm.
The authors examine the complex relationship between human behavior and social and economic environment, analyzing age, gender, family, kinship, social class and social organization, climate, food prices, and real wages to compare mortality responses to adversity. Their research at the individual, household, and community levels challenges the previously accepted characterizations of social and ec
During the last few decades interdependencies between univrsities and the surrounding society have multiplied, making universities increasingly dependent on their environments. The number of of demands on and requirements of univesities from various sectors in society hav enot only grown in number but are also changing more quickly. This development affects universities which need increased flexib
Signal processing of electrocardiographic signals has a long and rich history and has greatly helped to enhance the diagnostic capability, especially when signals are recorded in noisy environments. This article gives an introductory presentation of the basic set of algorithms used for conditioning the ECG with respect to different types of noise and artifacts, detecting heartbeats, extracting bas
Two methods for estimating the sensor offset of a cylinder pressure transducer are developed. Both methods fit the pressure data during pre-combustion compression to a polytropic curve. The first method assumes a known polytropic exponent, and the other estimates the polytropic exponent. The first method results in a linear least-squares problem, and the second method results in a nonlinear least-
The in situ heat-induced aggregation of commercial β-lactoglobulin as such, or after further purification, was followed to a z-average hydrodynamic diameter of 15–20 nm at 59–63 °C by dynamic light scattering. In this temperature range, measurable increase of hydrodynamic diameter occurred after an apparent lag period, which was strongly dependent on heating temperature, pH and initial protein con
