Search results

Pressurized liquid extraction (PLE) was investigated for the extraction of two endosulfan isomers and their metabolite from two real contaminated soil samples. PLE for 3 x 10 min at 100 degrees C was proven to be more exhaustive than Soxhlet extraction (SOX) in one soil sample. On the other soil sample investigated the method was found to be equally exhaustive as SOX. The use of hazardous organic

The sound values of /z/ and /r/ in proto-Nordic are discussed. It is suggested that the modern Swedish [r] and [R] are different results in different areas of the merger between /z/ and /r/ in Old Swedish, depending on the distribution of stress in polysyllabic words. The article is a shorter version of Teleman, U. (2005), Om r-fonemets historia i Svenskan (Nordlund 5). Insittutionen för nordiska

We investigate how a small polar molecule, urea, can act to protect a phospholipid bilayer system against osmotic stress. Osmotic stress can be caused by a dry environment, by freezing, or by exposure to aqueous systems with high osmotic pressure due to solutes like in saline water. A large number of organisms regularly experience osmotic stress, and it is a common response to produce small polar

The verification of the correctness of planned and executed treatments is imperative for safety in radiotherapy. The purpose of the present work is to describe and evaluate the quality assurance (QA) procedures for patient dosimetry implemented at the boron neutron capture therapy (BNCT) facility at Studsvik, Sweden. The dosimetric complexity of the mixed neutron-photon field during BNCT suggests

The Lamperti transformation of a self-similar process is a strictly stationary process. In particular, the fractional Brownian motion transforms to the second order stationary Gaussian process. This process is represented as a series of independent processes. The terms of this series are Ornstein-Uhlenbeck processes if $H<1/2$, and linear combinations of two dependent Ornstein-Uhlenbeck processes

‘The Nurse in Primary Health Care with Special Focus on Child Health Care’ The function of nurses in Swedish primary care involves health care and medical care for people of all ages, and in their health-promotion work there is a focus on child health care. Child health care in Sweden is mostly provided by nurses. The work encompasses all children from birth to school age; it is voluntary and fre

This paper suggests sufficient conditions for asymptotically stable dynamical output feedback controller design based on the circle criterion. It is shown that a dynamic output feedback stabilization problem with impending problems of finite escape time, previously attacked by observer-based design, can be successfully solved using circle criterion design. Stability of the closed-loop system is gl

To facilitate high-throughput biomarker discovery and high-density protein-chip array analyses of complex biological samples, a novel macro- and nanoporous silicon surface for protein microarrays was developed. The surface offers three-dimensional surface enlarging properties and spot confinement, enabling both high sensitivity bioassays and design of high density arrays. Reproducible manufacturin

Remains of the mosasaur Clidastespropython in marine strata of latest early Campanian age from the Kristianstad Basin, southern Sweden, represent the first record of Clidastes outside of North America. The material consists of shed marginal and pterygoid tooth-crowns, and vertebrae (including eleven associated cervicals and dorsals from a juvenile). The majority of the teeth and skeletal elements

A general mathematical model for the characterization of the dynamic (kinetically labile) association of supramolecular assemblies in solution is presented. It is an extension of the equal K (EK) model by the stringent use of linear algebra to allow for the simultaneous presence of an unlimited number of different units in the resulting assemblies. It allows for the analysis of highly complex dyna

From 1975 through 1995, 45,025 knee arthroplasties were recorded in the prospective Swedish Knee Arthroplasty study. By the end of 1995, 1,135 of 14,772 primary unicompartmental knee arthroplasties (UKA) for localized, mainly medial arthrosis had been revised. The Marmor/Richards and St. Georg sledge/Endo-Link prostheses were used in 65%. Mean age at revision was 72 (71) years. 232 revisions were

Sampling is normally done periodically in time. For linear time invariant systems this leads to closed loop systems that linear and periodic. Many properties can be investigated by considering the behavior of the systems at times that are synchronized with the sampling instants. This leads to drastic simplifications because the systems can be described by difference equations with constant coeffic

Länge ansågs det att fjällig vägglav bara fanns kvar på en enda alm vid Dalby kyrka i Skåne. Efter att trädet höggs ner befarades laven vara borta ur den svenska floran. Den är nu återfunnen på en mur bara några meter från där trädet en gång stod.

Denna bok handlar om naturlighet iförhållande till födsel och föräldraskap - om hur naturligheten positioneras i människans föreställningar kring födseln. Under de tio-femton senaste åren har det skett en förändring i dessa föreställningar från en högteknologisk omsorg med hög riskmedvetenhet till en mer naturlig eller alternativ omsorg. Där tidigare det medicinska tänkandet, som innebar att hälso