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Air flow rate through filters and face masks is one important determinant of the final protection factor of a respiratory protective device in use. Respiratory minute volumes and instantaneous breath flow rates were measured in eight subjects during treadmill work using three types of filtering respirators and one control breathing mask. Work comprised five consecutive bouts of walking at 5 km/h w

This paper demonstrates that vacuum impregnation of mature apple tissue in the presence of different sugars results in the formation of membrane vesicles inside the cells. Vesiculation is regarded to be a metabolic consequence of the impregnation process. Vesiculation is shown when the endocytic marker FM4-64 was impregnated into the apple tissue together with the sugar solutions. Vesicles were fo

This paper presents the design of a two-step process in which the first step is PEGylation of a protein, and the second step is chromatographic purification of the target mono-PEGylated protein from the unreacted and the di-PEGylated impurities. The difference between optimizing each process step separately and optimizing them simultaneously is studied. It was found that by optimizing the steps si

The impact of climate and emissions changes on the deposition of reactive nitrogen (Nr) over Europe was studied using four offline regional chemistry transport models (CTMs) driven by the same global projection of future climate over the period 2000-2050. Anthropogenic emissions for the years 2005 and 2050 were used for simulations of both present and future periods in order to isolate the impact

Specific absorbed fractions (SAFs) have been calculated as a function of the content in the urinary bladder in order to allow more realistic calculations of the absorbed dose to the bladder wall. The SAFs were calculated using the urinary bladder anatomy from the ICRP male and female adult reference computational phantoms. The urinary bladder and its content were approximated by a sphere with a wa

Persistent organochlorine pollutants (POPs) have been suggested to have negative effects on a number of hormonal systems. Several studies performed retrospectively have reported a possible association between POP exposure and fertility, measured as time to pregnancy (TTP). However, these studies lack biomarkers of exposure at the time when the women tried to conceive. It has previously been found

Purpose In numerous studies vigabatrin medication has been associated with visual field constriction and alterations in the full-field electroretinogram (ff-ERG), but it is not clear whether these changes are reversible or not. The purpose of this study was to examine patients with visual field loss and reduced ff-ERG several years after discontinuing vigabatrin therapy, in order to investigate re

Popular Abstract in Swedish Värmebehandling av vegetabilier medför att man värmer till temperaturer över växtens ursprungliga fysiologiska och naturliga temperaturgränser och därmed förändras den enskilda grönsakens vävnadsstruktur. Detta leder till en serie händelser på cellnivå som i sin tur bestämmer transportegenskaperna hos vävnaden. En av cellens viktigaste komponenter för masstransport är cHeat processing of vegetables involves the use of temperatures above the physiological limit which affect the cellular structures of the tissue and induce a series of events at cell level that will in turn be reflected in the transport properties of the tissue. One of the most important cellular structures from the mass transport point of view is the cell membrane since it represents the physical

Gas phase reactions at elevated temperatures are versatile tools for material manufacturing and energy conversion. They are of great commercial interest, but they often entail hazardous impacts on the environment. There is consequently a pronounced need for the further develpment of processes utilising these types of reactions. Spectroscopic methods, especially when combined with lasers, are idea

Recent developments in European energy policy reveal an increasing interest in implementing the so-called ‘Tradable White Certificate’ (TWC) schemes to improve energy efficiency. Based on three evaluation criteria (cost-effectiveness, environmental effectiveness and distributional equity) this paper analyses the implications of implementing a European-wide TWC scheme targeting the household and co

Natural organic matter (NOM) is found in all surface, ground, and soil waters. During recent decades, reports worldwide show a continuing increase in the color and NOM of the surface water, which has an adverse effect on drinking water purification. For several practical and hygienic reasons, the presence of NOM is undesirable in drinking water. Various technologies have been proposed for NOM remo

BACKGROUND Marked changes have occurred in in vitro fertilization (IVF) methodology during the past 25 years but also in characteristics of couples undergoing treatment. METHODS This study was based on 27 386 women undergoing IVF treatment from 1982 to 2006 and giving birth to 31 850 infants. Outcomes of deliveries were studied using Swedish health registers. Comparisons were made with all deliver

This study explores a bi-isotopic approach to migration, adding δ18O values to samples with 87Sr/86Sr values for 109 individuals from the Iron Age (500 BCE–1050 CE) on the island of Öland, Sweden. Determining a local baseline for 87Sr/86Sr was complicated due to the wide range of variation in faunal samples so we divided the human values into three groups: local, non-local and undetermined. The ad

I Hanöbukten utanför Haväng i sydöstra Skåne finns välbevarade undervattenslämningar från ett mesolitiskt landskap med rester av träd och sediment avsatta i å- och lagunmiljö. Arkeologiska fynd av bland annat stationära fiskeredskap och en hackyxa av horn har gjorts. Landskapet formades under lågvattenperioderna under Yoldiahavet (11 700-10 800 cal BP) och Littorinahavets första fas (9800-8500 calIn the Hanö bay off the coast at Haväng in SE Scania, southern Sweden, a submerged and well-preserved Mesolithic landscape is found, including remains of trees, river and lagoon sediments, and archaeological artefacts such as an antler pick axe and stationary fishing constructions. The landscape was formed during the Yoldia Sea (11,700-10,800 cal BP) and Initial Littorina Sea (9800-8500) low-water

Hur påverkar klisterprotein epileptiska anfall? Hjärnan är ett fascinerande komplext organ som styr kroppen. För att hjärnan ska kunna skicka signaler använder hjärnan sig utav små budbärare. Dessa budbärare springer från en kontaktpunkt till en annan mellan nervceller och därmed vidarebefordrar meddelandet. Området där de springer mellan nervcellerna kallas för synaptiska klyftor, där vissa proteEpilepsy is a neurological disorder characterized by its debilitating epileptic seizures. There are generalized seizures, which affect the whole brain at once, and focal seizures, which start from one part of the brain. The most common focal epilepsy, is temporal lobe epilepsy representing almost 70% of all focal epilepsies. Around 30% of all patients are therapy refractory, therefore there is a h

Title: Accelerating Service Innovation with Global Account Management – A Case Study at a Manufacturing MNC Author: Emma Malmström – Master of Science in Industrial Engineering and Management, em.malmstrom@gmail.com Tutors: Malin Olander Roese – PhD Researcher, Department of Design Sciences, Faculty of Engineering, Lund University and Susanna Bill – PhD Student, Department of Design Sciences, Fa

Bixin is a carotenoid which is extracted from annatto (Bixa orellana). Its main application is as a coloring agent. It consists of conjugating double bonds with a carboxylic end, making it prone to degradation by oxygen, light and heat. This study investigates the light stability of bixin encapsulated with maltodextrin (MD), sucrose and whey by spray drying. MD was added with additives such as car