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A system for the photodynamic laser treatment of massive tumors that employs multiple optical fibers to be inserted into the tumor mass is described. The light flux through the tumor can be assessed by use of the individual fibers both as transmitters and as receivers. With a computer model that describes the diffusive light propagation, optical dosimetry is under development, The system has been
The objective of this study was to design and experimentally examine a sampling method for high-temperature aerosols from biomass combustion, in which nucleation and condensation from fly ash forming vapors is controlled. The sampling method includes a high-temperature probe in which the hot gas is diluted and then cooled. Laboratory results from sampling a model aerosol with known concentrations
We investigate steady symmetric gravity water waves on finite depth. For nonpositive vorticity it is shown that the particles display a mean forward drift, and for a class of waves we prove that the size of this drift is strictly increasing from bottom to surface. This includes the case of particles within irrotational waves. We also provide detailed information concerning the streamlines and the
Subsolidus phase relations have been determined for the BaO:TiO2:Ta2O5 system by X-ray diffraction analysis of ~100 specimens prepared in air at temperatures near but below the solidus (1275 °C to 1500 °C). For the BaO:Ta2O5 subsystem, the formation of all three polymorphs of BaTa2O6 (orthorhombic, tetragonal, and hexagonal) was confirmed. The present study found no stable phases forming between B
The composition and mode of attachment of Cu(II) complexes at the gamma-Al2O3-water interface in suspensions containing a simple amino acid (glutamate) were characterized with EXAFS and FTIR spectroscopies. The spectroscopic results indicate that two types of Cu(II)-glutamate-alumina interactions are primarily responsible for Cu(II) and glutamate uptake between pH 4 and 9. In acidic suspensions of
A lower Cambrian eodiscoid trilobite fauna and an associated holmiid trilobite, Holmia sp., are described from a bioclastic limestone at the top of the Tornetr¨ask Formation in the Luob´akti section, south of Lake Tornetr¨ask, northern Sweden. Other associated polymerid trilobites include Orodes? lapponica and Strenuaeva inflata. The precise age of the trilobite fauna cannot be determined, but its
We have investigated the lipid chemistry during cold acclimation in the freeze tolerant earthworm Dendrobaena octaedra. The dominant phospholipid fatty acids (PLFA) of D. octaedra were 20:4, 20:5 and 20:1 (50% of total PLFA) followed by 18:0, 18:1 and 18:2 omega 6,9 (25% of total PLFA). The ability to tolerate freezing in this species was acquired after acclimation at low temperature for 2-4 weeks
We have used proton magnetic relaxation dispersion (MRD) to study the self-association of bovine ß-lactoglobulin variant A (BLG-A) as a function of temperature at pH 4.7 (dimer–octamer equilibrium) and as a function of NaCl concentration at pH 2.5 (monomer–dimer equilibrium). The MRD method identifies coexisting oligomers from their rotational correlation times and determines their relative popula
Purpose
The purpose of this paper is to analyse papers studying the link between supply chain integration (SCI) and performance, and to discuss reported empirical evidence relating to this fundamental question for logistics and supply chain management.
Design/methodology/approach
A systematic analysis of 38 papers published in nine important journals in logistics, su
Arbuscular mycorrhizal (AM) mycelia are dependent on contact with plant roots for spore formation. In this study, earthworms and collembolans were regarded as potential dispersal vectors of AM fungal spores and hyphae, and we determined how they influenced the extension of AM fungi from host plant roots. Plantago lanceolata seedlings were grown in a mesh bag with an AM inoculurn of dried soil and
Demokratier nedmonteras i stater runtom i världen. För att undvika och återhämta sig från demokratisk nedmontering är det viktigt att stater kan bibehålla eller förbättra sina nivåer av demokrati. Detta koncept är känt som ’democratic resilience’ eller demokratins motståndskraft. Demokratiers nedmontering har en negativ inverkan på människors möjlighet att åtnjuta mänskliga rättigheter, varför säkDemocracy is declining in several states in all regions of the world. To avoid and recover from democratic backsliding, it is important that states can maintain or improve their levels of democracy. This concept is commonly referred to as ‘democratic resilience’. Democratic backsliding has a negative impact on the ability of people to enjoy their human rights, and therefore, there must be a safety
This thesis aims to explore how managers comprehend the systemic value of a companies’ Performance Management System (PMS). The study findings show that PMS causes path-dependent behavior, leading to organizational rigidities, strategic inertia, and diminishing PMS effectiveness. Managers' comprehension of the multifaceted, complex, and systemic nature of PMS can counteract the unintended nega
The study of minimal surfaces has a long history, due to the important applications. Given a fixed boundary, one wants to minimise the surface area: this can be used, for example, to minimise the area of the roof of a building. Similarly, looking for constant mean curvature (CMC) provides us with many interesting ap- plications in physics – one of the easiest examples are soap bubbles. In this wor
Research links motivation to well-being and personality. There have also been studies regarding the connection between personality and health. In one scientific study, certain personality traits and greater motivation predicted high levels of well-being, but greater motivation also predicted lower well-being when the individual had a high tendency to worry and pessimism. In order to help organisat
Oat (Avena sativa) is a cereal crop rich in dietary fibre, vitamins, antioxidants and other nutrients. It is considered to have higher nutritional values compared to other cereals (Tosh & Miller, 2016). Arabinoxylan (AX) is a hemicellulose naturally abundant in cereal crops. It is a major component of dietary fibre in crops like wheat, barley, rye, maize, rice and oats (Lu et al., 2000). Stu
The energy demand of the world continues to increase, while world's resources are exploited over its capacity. One way of facing these demands is to extend the use of fuel cells. A fuel cell converts chemical energy into electrical energy through a series of chemical and electrochemical reactions. A solid oxide fuel cell (SOFC) is unique since it only contains solid materials and the cell has
This work investigates visualizations of two crises; terrorism and climate change. Focus lies on mediated images concerning Paris 2015, where terrorist attacks had an impact on the following UN climate change conference (COP21). The symbol of the Eiffel Tower was used to portrait both issues and will be studied through a semiotic analysis. Terrorism and climate change are argued to be interlinked,
