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Assessment of dermal uptake of diphenylmethane-4,4′-diisocyanate using tape stripping and biological monitoring

Background: Very little is known about the dermal uptake of isocyanates, and dermal exposure to isocyanates has been discussed as a factor involved in the induction of respiratory diseases. Objectives: To investigate the dermal uptake of diphenylmethane-4,4’-diisocyanate (4,4’-MDI). Materials & Methods: Four volunteers were dermally exposed to 10, 25, 49 and 50 mg 4,4’-MDI, respectively, for e

Gendering of day center occupations as perceived by people with psychiatric disabilities in Sweden

Background: The aim was to explore the experiences and views of people attending day centers for people with psychiatric disabilities concerning the occurrence and nature of gendering of the occupations performed there. Methods: Twenty-five day center attendees were interviewed regarding occupational choices at the day centers, whether they would describe day center occupations as gendered, and if

Measurement of intact parathyroid hormone in the diagnosis of hyperparathyroidism

Plasma levels of parathyroid hormone were determined pre-operatively in 27 consecutive patients with clinical and biochemical signs of primary hyperparathyroidism, by the use of one assay recognizing the intact PTH molecule and one assay recognizing the mid-portion of PTH. Plasma levels of mid-molecule PTH were normal in 5 of the patients with primary hyperparathyroidism. In 4 of these patients, p

BEPS Action 6 - An inclusion of anti-abuse measures in tax treaties to prevent the improper use of a tax treaty - Are the measures suggested in BEPS Action 6 necessary from a Swedish perspective?

The thesis provides an overview of the relationship between tax treaties and domestic law and issues that arise if a contracting state uses domestic anti-avoidance rules to prevent the improper use of a tax treaty. Improper use of a tax treaty is an issue addressed in the BEPS Action 6 report. The suggestion is to include a limitation-on-benefits clause in the OECD Model Convention, a principal pu

Kristallen i Mellanrummet

In the fall of 2007 a collective of artists in southern Sweden made waves for themselves by attempting to construct a rather unique ‘club-format’ unlike any other in the [then] current Swedish underground club scene. Guided mainly by a self-proclaimed ‘notion of confusion’ as its foundational principle, the collective behind Klubb Kristallen branded itself as an aspiring anti-club by seeking to ch

Anatomical and physiological evidence for polarisation vision in the nocturnal bee Megalopta genalis

The presence of a specialised dorsal rim area with an ability to detect the e-vector orientation of polarised light is shown for the first time in a nocturnal hymenopteran. The dorsal rim area of the halictid bee Megalopta genalis features a number of characteristic anatomical specialisations including an increased rhabdom diameter and a lack of primary screening pigments. Optically, these special

Calcium-induced mitochondrial permeability transition in CNS-derived mitochondria - Pharmacological aspects of specificity and toxicity in neuroprotection

Mitochondria are the main site for energy conversion in the cell. Under certain circumstances, such as excess calcium retention or production of reactive oxygen species, a pore forms at contact sites between the outer and the normally impermeable inner mitochondrial membrane. The ensuing osmotic mitochondrial swelling and loss of bioenergetic function is referred to as the mitochondrial permeabili

Influence of Ion Implantation on Magnetic, Structural and Optical Properties of (Ga,Mn)As Epitaxial Films

We performed implantation experiments; applying both the chemically active oxygen ions and inactive ions of neon noble gas, to thin epitaxial films of (Ga,Mn)As ferromagnetic semiconductor. Inspection of their magnetic properties by means of a superconducting quantum interference device magnetometer revealed that the implantation with a low dose of either O or Ne ions completely suppressed ferroma

High-resolution In-beam Particle Spectroscopy - New Results on Prompt Proton Emission from 58Cu

Prompt proton decay lines in Cu-58 have been studied by means of high-resolution in-beam particle-gamma coincidence spectroscopy using the GAMMASPHERE Ge-detector array in conjunction with a dedicated set of ancillary detectors including four DeltaE-E silicon-strip telescopes. High-spin states in Cu-58 have been populated via the heavy-ion fusion-evaporation reaction Si-28(Ar-36, 1alpha1p1n) at 14

Epithelial and Stromal MicroRNA Signatures of Columnar Cell Hyperplasia Linking Let-7c to Precancerous and Cancerous Breast Cancer Cell Proliferation.

Columnar cell hyperplasia (CCH) is the earliest histologically identifiable breast lesion linked to cancer progression and is characterized by increased proliferation, decreased apoptosis and elevated oestrogen receptor α (ERα) expression. The mechanisms underlying the initiation of these lesions have not been clarified but might involve early and fundamental changes in cancer progression. MiRNAs

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This thesis studies the ways in which the concept of honor is presented in the novels The Time of the Hero (1962) by Mario Vargas Llosa and Chronicle of a Death Foretold (1981) by Gabriel García Márquez. After defining what honor is, an investigation of how this concept is presented in the novels and the role it plays in these two literary works will take place. Also, the portrayal of honor in the

Microstructural and Residual Stress Development due to Inertia Friction Welding in Ti-6246

A thorough investigation has been performed to assess the microstructural properties, mechanical properties (hardness and elastic modulus), and residual stress development in Ti-6Al-2Sn-4Zr-6Mo (Ti-6246) inertia friction welds in the as-welded and postweld heat-treated conditions. It was evident that the thermomechanical deformation in the weld region occurred above the beta transus, forming dynam

CYP3A induction and inhibition by different antiretroviral regimens reflected by changes in plasma 4 beta-hydroxycholesterol levels

Objective and methods A member of the major human cytochrome P450 superfamily of hemoproteins, CYP3A4/5, converts cholesterol into 4 beta-hydroxycholesterol. We studied plasma 4 beta-hydroxycholesterol levels prior to and 4 weeks after initiating antiretroviral therapy that included efavirenz, ritonavir-boosted atazanavir or ritonavir-boosted lopinavir with the aim of exploring the usefulness of p

Highly Asymmetrical Porphyrins with Enhanced Push-Pull Character for Dye-Sensitized Solar Cells

A porphyrin -system has been modulated by enhancing the push-pull character with highly asymmetrical substitution for dye-sensitized solar cells for the first time. Namely, both two diarylamino moieties as a strong electron-donating group and one carboxyphenylethynyl moiety as a strong electron-withdrawing, anchoring group were introduced into the meso-positions of the porphyrin core in a lower sy

JNK1 controls dendritic field size in L2/3 and L5 of the motor cortex, constrains soma size, and influences fine motor coordination.

Genetic anomalies on the JNK pathway confer susceptibility to autism spectrum disorders, schizophrenia, and intellectual disability. The mechanism whereby a gain or loss of function in JNK signaling predisposes to these prevalent dendrite disorders, with associated motor dysfunction, remains unclear. Here we find that JNK1 regulates the dendritic field of L2/3 and L5 pyramidal neurons of the mouse

Towards a screening tool for housing accessibility problems: a reduced version of the Housing Enabler.

To present a reduced version of the Housing Enabler, useful as a screening tool in practice contexts and in research, this study identifies the core items of the environmental component of the instrument, that is, the items most important in terms of the instrument's overall validity to measure accessibility problems. Utilizing cross-national data and interdisciplinary knowledge through an iterati

An effect of side chain length on the solution structure of poly(9,9-dialkylfluorene)s in toluene

The effect of side chain length of pi-conjugated poly(9,9-dialkylfluorene)s has been studied in semi-dilute (10 mg/mL) toluene solutions using small-angle neutron scattering (SANS) and H-1 and H-2 NMR spectroscopies. Under these conditions, SANS data indicate that poly(9,9-dinonylfluorene) and poly(9,9-dioctylfluorene) are dissolved down to the molecule level and appear as elongated one-dimensiona

European Stroke Science Workshop

The European Stroke Organisation held its first European Stroke Science Workshop in Garmisch-Partenkirchen, Germany (December 15-17, 2011). Stroke experts based in Europe were invited to present and discuss their current research. The scope of the workshop was to review the most recent findings of selected topics in stroke, to exchange ideas, to stimulate new research, and to enhance collaboration