Sökresultat

Filtyp

Din sökning på "*" gav 529631 sökträffar

Framtidens undervisning i engelska : enspråkig, tvåspråkig eller flerspråkig?

Här presenteras det nystartade projektet Flerspråkiga praktiker i engelskundervisningen, finansierat av Vetenskapsrådet, samt forskning om flerspråkighet som ligger till grund för projektet. Vi kommer att undersöka hur och varför lärare och elever använder andra språk än engelska i engelskundervisningen. Vilken betydelse har användningen av elevers starkaste språk för deras lärande och inkludering

Long Lost : The emotional side of identification - Complementing SIT with psychoanalytic insights

In this essay, I aim to complement social identity theory (SIT) concepts of identification with insights from psychoanalysis to address three problematic aspects: (a) SIT emphasizes cognition and often neglects emotions, (b) emotions—if mentioned —are primarily positive, and (c) SIT-based concepts can be used to inspire simplified ideas of identification management. I argue that psychoanalytic ins

Simultaneous PLIF Imaging of OH and PLII Imaging of Soot for Studying the Late-Cycle Soot Oxidation in an Optical Heavy-Duty Diesel Engine

The effects of injection pressure and swirl ratio on the in-cylinder soot oxidation are studied using simultaneous PLIF imaging of OH and LII imaging of soot in an optical diesel engine. Images are acquired after the end of injection in the recirculation zone between two adjacent diesel jets. Scalars are extracted from the images and compared with trends in engine-out soot emissions. The soot emis

Analyses of the performance of adaptive subspace detector on fluctuating target detection in system-dependent clutter background

The adaptive subspace detector in system-dependent clutter background (SDC-ASD) is proved to be able to improve the detection performance for deterministic target detection in the authors' previous study. However, the exact performance of the SDC-ASD for fluctuating target detection is still unknown. In this study, with the aid of matrix decomposition theory, the analytical performance of the SDC-

Fixed-point algorithms for frequency estimation and structured low rank approximation

We develop fixed-point algorithms for the approximation of structured matrices with rank penalties. In particular we use these fixed-point algorithms for making approximations by sums of exponentials, i.e., frequency estimation. For the basic formulation of the fixed-point algorithm we show that it converges to the solution of a related minimization problem, namely the one obtained by replacing th

Stapling in thyroid surgery. A prospective study

In a prospective study, resection of the thyroid gland by means of a linear stapling device was compared with the conventional resection technique in 12 consecutive patients with thyreotoxicosis. The median time for resection of the stapled lobe was shorter than for the conventionally resected right lobe, although the difference was not statistically significant. The median preoperative bleeding d

Serum osteocalcin levels do not change during rapidly induced hypercalcemia in healthy subjects

Since osteocalcin has been suggested to play a role in calcium homeostasis, we investigated its serum levels in 6 healthy subjects during a rapid calcium infusion. Serum levels of intact parathyroid hormone (PTH), 25-hydroxyvitamin D [25-(OH) D3] and 1,25-dihydroxyvitamin D [1,25-(OH)2 D3] were also determined. The calcium infusion increased plasma-ionized calcium levels from 1.25 +/- 0.04 to 1.54

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

Preoperative localization of enlarged parathyroid glands with ultrasonically guided fine needle aspiration for parathyroid hormone assay

For preoperative localization of enlarged parathyroid glands, several imaging techniques have been used. In this study we demonstrate the feasibility of using ultrasonography with fine needle aspiration for parathyroid hormone assay as a preoperative localization procedure in 21 patients with primary hyperparathyroidism. A single adenoma was found in 18 patients while 3 patients had multiglandular

Intact parathyroid hormone assay is superior to mid region assay in the EDTA-infusion test in hyperparathyroidism

We examined the use of an intact parathyroid hormone two-site immunoradiometric assay compared with a mid region parathyroid hormone radioimmunoassay in ethylene diamine tetraacetic acid-infusion test in 15 patients with hyperparathyroidism. During the test, plasma intact parathyroid hormone levels increased by 240 +/- 43%, whereas the plasma levels of mid molecule parathyroid hormone increased by

Intraoperative fall in plasma levels of intact parathyroid hormone after removal of one enlarged parathyroid gland in hyperparathyroid patients

Plasma levels of intact parathyroid hormone (PTH) were measured intraoperatively before and after removal of one enlarged gland in 20 hyperparathyroid patients. In 13 patients with a single parathyroid adenoma, plasma levels of intact PTH-(1-84) had declined at 15 min after removal of the adenoma by 86.5 +/- 4.4% of baseline in the antecubital vein and by 85.6 +/- 4.2% in the ipsilateral internal

A prospective study of 100 roboticallyassisted laparoscopic adrenalectomies

We evaluated robotically assisted laparoscopic adrenalectomy (RLA) in a prospective study of 100 consecutive patients (60 women and 40 men) undergoing unilateral adrenalectomy at the University Hospital. The median age was 59 (24-82) years and BMI 27.6 (17.1-40.9) kg/m(2). Preoperative diagnoses were Conn's syndrome 30%, pheochromocytoma 23%, Cushing syndrome 27% and non-functional tumor 20%. The

Methods for localizing and quantifying radionuclide sources and deposition using in situ gamma spectrometry : Critical review of the peak-to-valley method based on experimental studies and applications in Georgia and Japan

Inom beredskapen mot radiologiska och nukleära olyckor och katastrofer spelar strålningsmätningar en avgörande roll för att ta reda på vad som har hänt och hur farligt det är för människa, djur och natur och på vilket sätt det påverkar miljö och samhällsfunktioner. I Sverige och många andra länder i världen har allmänheten en rättighet att få reda på vad som hänt och vad de utsätts för i ett eventThis thesis describes investigations made on mobile and stationary gammaspectrometry made both under laboratory conditions and in situ. The objective hasbeen to identify and quantify radionuclides in the form of point sources,contamination and widespread deposition in situations where the measurementgeometry is not known beforehand. Both scintillators and semiconductor detectors ofsimilar size wer