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Lake Poopó is a terminal lake of the Bolivian Altiplano, with high salinity and heavy anthropogenic pollution from centuries of extensive mining activity. This study aims to describe how the water quality of groundwater and surface water system in different subwater-sheds of the Lake Poopó varies with geology and hydrology. Measurements of total dissolved solids (TDS) in wells show groundwater bec

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The most prominent poets in the two golden ages of Swedish Poetry in the 19th Century are presented: Tegnér, Stagnelius, von Heidenstam,Fröding, Karlfeldt. Their formal skills as well as their main themes are described, and citations are given in english and swedish.

Resorting more and more to e-learning means a thorough transformation of the teaching processes. Once the teacher-student communication is realized on yahoo-groups or Facebook-groups, the classical roles in the classroom become obsolete. With teachers having the possibility to enter in due time on students’ forums, the former relation of power in education moves to a collaborative one. More and mo

The effect of different glutamate‐receptor antagonists on the induction of cortical spreading depression of Leao and of cortical anoxic membrane depolarization were investigated in the anaesthetized rat. Spreading depression (SD), elicited by mechanical stimulation of the cortical surface, was inhibited by the non‐competitive N‐methyl‐d‐aspartate (NMDA)‐receptor blocker, (±)‐5‐methyl‐10,11‐dihydro

The effect of cerebral ischemia on the activity of pyruvate dehydrogenase (PDH) enzyme complex (PDHC) was investigated in homogenates of frozen rat cerebral cortex following 15 min of bilateral common carotid occlusion ischemia and following 15 min, 60 min, and 6 h of recirculation after 15 min of ischemia. In frozen cortical tissue from the same animals, the levels of labile phosphate compounds,

The effect of an α-2 receptor antagonist, idazoxan, on ischemic neuronal damage in the hippocampus and neocortex was studied in rats following 10 min of forebrain ischemia. Idazoxan was given 0.1 mg/kg i.v. immediately after recirculation, followed by 48 h of continuous infusion at a rate of 10 μg/kg/min. A histopathological examination of the CA1 region of the dorsal hippocampus and neocortex fro

Changes in the levels of arachidonic acid during ischemia in selectively vulnerable areas of the hippocampus were studied in the rat brain. Since neurons in the CA1 region are more vulnerable to ischemia than neurons in the adjacent CA3 region, the release of arachidonic acid in these two regions was measured during decapitation ischemia of 4- to 12-min duration. The concentration of free arachido

This study addresses the question of whether the cyclooxygenase inhibitors indomethacin and diclofenac and the glucocorticosteroid dexamethasone ameliorate neuronal necrosis following cerebral ischemia. In addition, since these drugs inhibit the production of prostaglandins and depress phospholipase A2 activity, respectively, the importance of free fatty acids (FFAs) on the development of ischemic

We aim to answer the question of the effect of a social-purpose-driven ecosystem on value capture from digital health platforms. We call the social-purpose-driven ecosystem a phenomenon which seeks social impact before profits and aims to empower citizens for individual and collective well-being. Thus, capturing value from digital platforms embedded in a social-purpose-driven ecosystem fundamental

This study follows on from a network-based assessment redesign project at a Canadian university, to investigate factors relating to academic engagement and sustained implementation. The project was designed with mini-grants, embedded support and a community of practice. Assessment facilitators worked in discipline clusters to achieve mutual goals for assessment reform targeted at authentic develop

This thesis comprises of four self-contained papers that use both experimental and applied micro-econometric methods to explore different aspects of gender, health, the decisions we make, and the actions we take. In the first paper we investigate changes in psychiatric diagnoses and their income-related inequalities over time in Sweden and attempt to disentangle the development by decomposing chan

Ett tvådimensionellt transportförsök utfördes i en behållare (45 cm x 54 cm x 20 cm) fylld med fin sand. En färgad icke vattenlöslig vätska (LNAPL) spreds över en rektangulär yta, 5 x 20 cm, på försöksytan. Spridningen gjordes i fyra omgångar på olika sätt; med konstant flöde, konstant nivå och varierande nivå. Fyrtiotvå tidsdo män reflektometri (TDR) prober användes för att följa LNAPL transporte