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

Bandwidth efficiency is a key objective in the design of a digital communication system. Traditionally it is accomplished by increasing the constellation size of the signaling system. In this thesis alternative techniques are studied. Because the communication channel is continuous, so must the actual time signals be. Therefore the construction of the continuous signals is included in the code des

The heat transferred to the turbine blade is substantially increased as the turbine inlet temperature is increased. Cooling methods are therefore much needed for the turbine blades to ensure a long durability and safe operation. The blade tip region is exposed to the hot gas flows. A common way to cool the tip is to use serpentine passages with 180-deg turn under the blade tip cap taking advantage

Knowledge about the nature, processes and patterns of cascading effects, i.e. where infrastruc-ture dependencies lead to impacts propagating from one system to other systems, is essential in order to miti-gate and respond to crises that involve critical infrastructures and societal functions. This paper presents a method for systematic description of cascading effects in past event, to some extent