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Effects of the CDIO curriculum on engineering students’ experiences of their study environment
The focus of this paper will be engineering students’ experiences of their 2nd, 3rd and 4th years of their program. In 1999 the implementation of the CDIO curriculum started and in 2002 the first project based course, which was compliant with the CDIO philosophy, was introduced during the 1st and 3rd study year. Results are based on responses from three questionnaires given to all registered stude
Genetic and Environmental Influences on Marital Relationships
As most adults will marry at least once during their lifetime, studying marital quality and its predictors is of great importance. The current study addresses (a) the extent of agreement between husbands and wives on their marital quality, (b) genetic and environmental sources of individual differences on spouse reports of marital quality, and (c) the extent to which genetic and environmental infl
Cytotoxic alpha-pyrones from Xylaria hypoxylon
Two new alpha-pyrone derivatives, xylarone (1) and 8,9-dehydroxylarone (2) possessing cytotoxic activities, were isolated from the culture fluid of submerged cultures of the ascomycete Xylaria hypoxylon, strain A27-94. Their structures were elucidated by spectroscopic methods.
Smooth terminating bands in Te-112: Particle-hole induced collectivity
The Gammasphere spectrometer, in conjunction with the Microball charged-particle array, was used to investigate high-spin states in Te-112 via Ni-58(Ni-58, 4p gamma) reactions at 240 and 250 MeV. Several smooth terminating bands were established, and lifetime measurements were performed for the strongest one using the Doppler-shift attenuation method. Results obtained in the spin range 18-32h yiel
Övningar och laborationer i Datorer i Reglersystem
Development of strength and heat of hydration of young concrete at low temperature - influence of granulated blast furnace slag, silica and limestone
The work presented in this licentiate thesis was carried out within the project task Use of industrial by-products and filler in concrete, part Early-age strength development at low temperatures in concrete with mineral additions/fillers. To improve the understanding and to increase the data available, the study investigated the development of compressive strength and heat of hydration while curin
GaAs : Mn nanowires grown by molecular beam epitaxy of (Ga,Mn)As at MnAs segregation conditions
GaAs:Mn nanowires were obtained on GaAs(001) and GaAs(111)B substrates by molecular beam epitaxial growth of (Ga,Mn)As at conditions leading to MnAs phase separation. Their density is proportional to the density of catalyzing MnAs nanoislands, which can be controlled by the Mn flux and/or the substrate temperature. After deposition corresponding to a 200 nm thick (Ga,Mn)As layer the nanowires are
Attraktiv kollektivtrafik i små städer : förutsättningar och möjligheter för ett ökat resande. Förstudie
Rats and mice immunised with chimeric human/mouse proteinase 3 produce autoantibodies to mouse Pr3 and rat granulocytes
Aim: In this study, we employed chimeric human/ mouse Proteinase 3 ( PR3) proteins as tools to induce an autoantibody response to PR3 in rats and mice. Method: Rats and mice were immunised with recombinant human PR3 ( HPR3), recombinant murine PR3 ( mPR3), single chimeric human/ mouse PR3 ( HHm, HmH, mHH, mmH, mHm, Hmm) or pools of chimeric proteins. Antibodies to mPR3 and HPR3 were measured by EL
YBa2Cu3O6 - A Selective Ammoxidation Catalyst
Hyrtl's anastomosis, the only connection between the two umbilical arteries. A study in full term placentas from AGA infants with normal umbilical artery blood flow
Background The aim of this study was to describe the Variable anatomy in the anastomosis between the umbilical arteries for better understanding of the physical characteristics of the umbilical Row velocity waveform (FVW). Methods. The arterial system of 67 placentas from pregnancies with normal umbilical FVW and resulting in a full-term AGA infant was visualized by angiography. The method allowed
The long time water absorption in the air-pore structure of concrete
The effect on workload by using a support arm in parlour milking
Swedish agriculture is currently undergoing radical changes with respect to the working environment. New production milking systems may alter the physical workload and thus have an effect on the development of musculoskeletal disorders. Earlier studies have shown that there is a manifest risk of suffering injury to the forearm, wrist and hand during machine milking especially during the attaching
Selective pressurized liquid extraction of polychlorinated dibenzo-p-dioxins, dibenzofurans and dioxin-like polychlorinated biphenyls from food and feed samples
Selective pressurized liquid extraction (PLE) of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) from various food and feed samples was performed with a selective PLE method previously developed for bulk PCBs. The method utilizes sulfuric acid impregnated silica inside the extraction cell to oxidize coextracted fat. Extractions were per
Celecoxib 200 mg q.d. is efficacious in the management of osteoarthritis of the knee or hip regardless of the time of dosing
Objectives. The primary objective was to demonstrate equivalence between a.m. and p.m. dosing of celecoxib 200 mg q.d. An equivalence assessment of q.d. vs b.i.d. dosing was a secondary objective. Methods. In this randomized, double-blind study, patients with symptomatic osteoarthritis of the knee or hip were randomized to receive celecoxib 200 mg q.d. a.m., celecoxib 200 mg q.d. p.m. or celecoxib
Influence of mhc on sibling discrimination in Arctic char, Salvelinus alpinus (L.)
The preference of juvenile Arctic char [Salvelinus alpinus (L.)] for odors from siblings and nonsiblings with different major histocompability complex class II (MHC) genotypes was studied in two-choice fluviarium tests. In the first part of the study, test fish demonstrated no preference for water scented by a sibling with a MHC genotype different from its own versus water scented by a MHC identic
Degradation of toxaphene in water during anaerobic and aerobic conditions
The degradation of technical toxaphene in water with two kinds of bioreactors operating in sequence was studied. One packed bed reactor was filled with Poraver(R) (foam glass particles) running at anaerobic conditions and one suspended carrier biofilm reactor working aerobically. Chemical oxygen demand (COD), chloride, sulphate, pH, dissolved oxygen, total toxaphene and specific toxaphene isomers
Calculated reaction cycle of cytochrome c oxidase
The catalytic cycle of cytochrome c oxidase has been simulated by means of quantum mechanical calculations. The experimental energetics of the catalytic cycle is nearly reproduced. The atomic structures of the intermediates are suggested. In particular, the structures of nonactive "resting" intermediates are proposed.
Use of a gradient of N-deposition to calculate effect-related soil and vegetation measures in deciduous forests
Deposition of N and S has increased since the 1950s in most European countries and N accumulates in ecosystems that are not N saturated. This study shows long-term effects of a (modelled) N deposition of 7-17 kg N ha(-1) per year on biological and chemical processes in soil, vegetation composition, and functional types of field-layer plant species in deciduous forests. Soil pH largely determined t