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Orientation for insects in olfactory landscapes with high semiochemical diversity may be a challenging task. The partitioning of odor plumes into filaments that are interspersed with pockets of ‘clean air’ may help filament discrimination and upwind flight to attractive sources in the face of inhibitory signals. We studied the effect of distance between odor sources on trap catches of the beetle,
This dissertation studies the effects that the use of a word-processing program can have on pupils' writing. The study was conducted with a consideration of the context in which the writing was done. It examined not just changes in the quality of the pupils' writing but also the attitudes of pupils, teachers, and parents to computer-aided writing. In addition, it studied the functional reliability
Thermal stability of food-borne pathogens in apple cider is influenced by the composition of the product. As a preliminary step to determine the effect of pasteurization of apple cider on the survival of Escherichia coli O157:H7, a study was carried out to characterize apples and unpasteurized apple cider produced by a Guelph area orchard. Samples of commercial unpasteurized cider and the constitu
Popular Abstract in Swedish Peptidaser, proteolytiska enzymer eller proteinhydrolaser är olika benämningar på samma sorts enzymer. Deras funktion är att bryta ner proteiner i alla celler, vävnader eller vätskor i antingen vår egen kropp eller i någon annan levande organism. Varför behövs dessa enzymer? Deras funktion påminner om den av en återvinningscentral, där peptidaserna avvecklar felfungeraProteolytic enzymes are enzymes that hydrolyze peptide bonds in peptides and proteins. This ability to carry out protein degradation is essential for many cellular and extracellular processes that occur in all living organisms. Cysteine peptidases constitute a class of proteolytic enzymes. Among these, papain-like (C1) peptidases are the mostly studied ones. Inhibitors regulate proteolytic activit
The challenges for efficient bioprocesses lie in developing and adapting further current technologies or in creating innovative separation technologies. The thesis is based on the studies on protein recovery from crude feedstocks by extraction in aqueous two-phase systems and detergent foam, respectively. The separation technologies have been adapted to suit individual proteins by utilizing differ
Popular Abstract in Swedish Under det senaste årtiondet har förekomsten av läkemedel i miljön rönt stor uppmärksamhet. Studier har visat att flera läkemedel hittats i sjöar och vattendrag och kan förorsaka negativa effekter hos vattenlevande organismer. Den i särklass största vägen via vilken läkemedel når miljön är avloppsreningsverk. Efter att vi ätit ett läkemedel kommer kroppen också att utsönThis thesis addresses the application of hollow fiber liquid phase microextraction as a simple, efficient and environmentally friendly tool to study the fate of four common anti-inflammatory drugs (ketoprofen, naproxen, diclofenac and ibuprofen) during wastewater treatment. Initial experiments verified that this technique is applicable on aqueous as well as suspensions of solid samples, thus great
A methodology for estimating the carbon balance across Scandinavian forests using remote sensing is presented. By estimating the gross primary production (GPP) and the ecosystem respiration (ER), and thereby, the net ecosystem exchange (NEE), using parameters that are routinely retrieved from satellite, it is possible to implement an operational model for obtaining large scale NEE. GPP is successf
In this chapter, I examine the international law protecting the rights of indigenous peoples regarding the environment they inhabit during the aftermath of armed conflict (post-conflict) and how it sits with the larger framework of applicable law in post-conflict – the corpus of jus post bellum. I map out the legal landscape by looking at indigenous peoples’ rights in human rights law and internat
This work presents the development of a two-moment cloud microphysics scheme within version 5 of the NASA Goddard Earth Observing System (GEOS-5). The scheme includes the implementation of a comprehensive stratiform microphysics module, a new cloud coverage scheme that allows ice supersaturation, and a new microphysics module embedded within the moist convection parameterization of GEOS-5. Compreh
Selective Non-Catalytic Reduction (SNCR), used to reduce the emissions of nitrogen oxides (NOx), has been a well-established technology in the power plant industry for several decades. The SNCR technique is an aftertreatment strategy based on thermal reduction of NOx at high temperatures. In the compression ignition engine application, the technology has not been applicable due to low exhaust temp
This paper reports on studies of multiple-injection strategies of gaseous fuel in a model combustion chamber and the role of jet-jet interactions on the mixing processes in the chamber using large-eddy simulation (LES). A high-pressure non-reacting gas flow injected through a jet with a nozzle diameter of 1.35 mm into a quiescent inert air environment is considered. First, we validate the method a
Alzheimer’s disease (AD) is a progressive neurodegenerative disease in which the formation of extracellular aggregates of amyloid beta (Aβ) peptide, fibrillary tangles of intraneuronal tau and microglial activation are major pathological hallmarks. One of the key molecules involved in microglial activation is galectin-3 (gal3), and we demonstrate here for the first time a key role of gal3 in AD pa
Purpose: The aim of the study was to develop a vocabulary targeting communication of health-terms of movement quality, establishing professional knowledge of a movement terminology usefull within rehabilitation. Methods: A phenomenological study design was chosen, inviting movement experts working in rehabilitation to describe movement observations when a change into more functional, health relate
Background/Objectives Polyphenols are plant secondary metabolites with a large variability in their chemical structure and dietary occurrence that have been associated with some protective effects against several chronic diseases. To date, limited data exist on intake of polyphenols in populations. The current cross-sectional analysis aimed at estimating dietary intakes of all currently known indi
Background: Whole-cell biocatalysis based on metabolically active baker's yeast with engineered transamination activity can be used to generate molecules carrying a chiral amine moiety. A prerequisite is though to express efficient ω-transaminases and to reach sufficient intracellular precursor levels. Results: Herein, the efficiency of three different ω-transaminases originating from Capsicum chi
Befolkningen växer och andelen som vill bo i städer ökar stadigt vilket skaparbehov av ny mark att bygga bostäder på. Tidigare har de flesta städer och orterutvecklats genom att växa utåt, vilket har lett till förlust av naturområden ochjordbruksmark och ökat beroendet av bilar. Att bygga staden inåt istället, så kallad förtätning, är numera en populär strategi för att minska bostadsbristen. I denThe proportion of people living in densely built up areas is gradually increasing,forcing cities to generate new land to build homes upon. In this process there is a risk for an inexplicit decrease of green space. The green features ofneighbourhoods help to create a supportive environment for health and physicalactivity, thus a reduction of greenness may reduce the general well-being in thepopulat
Neural transplantation is developing into a therapeutic alternative in Parkinson's disease. A major limiting factor is that only 3-20% of grafted dopamine neurons survive the procedure. Recent advances regarding how and when the neurons die indicate that events preceding actual tissue implantation and during the first week thereafter are crucial, and that apoptosis plays a pivotal role. Triggers t
Purpose: To assess the associations of meniscal tears, knee malalignment, cartilage damage, knee effusion, and body mass index with meniscal extrusion. Materials and Methods: The Multicenter Osteoarthritis study is an observational study of individuals who have or are at risk for knee osteoarthritis (OA). The HIPAA-compliant protocol was approved by the institutional review boards of all particip
Popular Abstract in Swedish En indikator-jon för en kvantdator Ända sedan transistorn uppfanns 1948 har datorer blivit allt mer kraftfulla. Trots den enorma utveckling som skett finns det fortfarande problem som är för svåra för en dator att lösa. Ett exempel är simulering av stora molekyler, t.ex. proteiner, vilket skulle vara användbart inom medicin och biologi, bland annat för att förutsäga hRare-earth ions doped into a transparent crystal can have optically excited states with coherence times of milliseconds and hyperfine levels with coherence times of hours when cooled down to liquid helium temperatures. This makes them attractive for developing quantum computing hardware. A quantum transistor can be implemented in a rare-earth-ion-doped crystal by utilizing a dipole blockade effe
Previous research carried out by the authors described the role of dual-fuel combustion efficiency on overall engine efficiency at high diesel substitution ratio. At low loads, high diesel substitution ratios result in excessive total unburned hydrocarbon emissions due to bulk flame quenching, and consequently lower substitution ratios in combination with intake air heating, throttling and increas
