Sökning: "Persson Per 2002"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Persson Per 2002.

1. 1. Development of the Lund AMS Facility for the Detection of 59Ni – with Applications in the Nuclear Industry

   Författare :Per Persson; Kärnfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; AMS; Accelerator mass spectrometry; 59Ni; nuclear waste; chemical cobalt reduction; gas stripper; Nuclear engineering and technology; Kärnteknik; Fysicumarkivet A:2002:Persson;

   Sammanfattning : Accelerator mass spectrometry (AMS) is a highly sensitive method for counting atoms and it is used for detecting very low concentrations of both radionuclides and stable isotopes in small samples. The two major advantages of the AMS method are that the required amount of sample material is very small, but also that the efficiency is rather high, it takes less than an hour to analyse a sample. LÄS MER

3. 2. Analysis of Degradation Products from Wood and Methods for Detoxification of Lignocellulose Hydrolysates

   Författare :Per Persson; Centrum för analys och syntes; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; galactoglucomannan; mass spectrometry; liquid chromatography; sugar degradation; detoxification; fermentation inhibitors; lignocellulose hydrolysates; Ethanol production; softwood; Analytical chemistry; Analytisk kemi; countercurrent supercritical fluid extraction;

   Sammanfattning : In order to produce fuel ethanol from lignocellulose, it is necessary to hydrolyse the sugar-containing constituents hemicellulose and cellulose. During acid hydrolysis, a number of compounds are formed or liberated in addition to the fermentable monomeric sugars. LÄS MER

4. 3. Skolledare i grundskolan : en fallstudie av biträdande rektorers möte med skolledning

   Författare :Ingvar Persson; Utbildningsvetenskap; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; in-service training; training; competence development; competence; shortage of knowledge; models for working; support employees; reflections; experiences; Assistant principals; face the work; case study; Pedagogy and didactics; Pedagogik; didaktik;

   Sammanfattning : The issues of the study are: How do the assistant principals face the work as school leaders? Which demands of competence do the new school leaders face? Which needs of competence development exist for new school leaders? In the school studied the organization of the management was changed from one principal and one director of studies to one principal and six assistant principals. All of these were new as school leaders and lacking knowledge as well as experiences in working in school management. LÄS MER

5. 4. Regulation and functions of basic helix-loop-helix transcription factors in neuroblastoma cells

   Författare :Paula Persson; Institutionen för translationell medicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; oncology; Cytology; Id; Olf EBF; ubiquilin-1; HASH-1; bHLH; Neuroblastoma; neuronal differentiation; cancer; onkologi; cancerology; Cytologi;

   Sammanfattning : Neuroblastoma is a childhood tumor derived from primordial neural crest cells. The tumor cells exhibit a phenotype similar to that of developing neuroblasts, which indicates that the tumor arises due to perturbed differentiation of the sympathetic nervous system. LÄS MER

7. 5. Aspects of nutrition in geriatric patients - Especially dietary assessment, intake and requirements

   Författare :Mats Persson Lintrup; Geriatrik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Validity.; Total energy expenditure; Reproducibility; Malnutrition; Geriatric patients; Fluid intake; Energy requirements; Doubly labelled water; Diet records; Aged; Dietary intake; Nutrition; Näringslära; Social medicine; Socialmedicin; samhällsmedicin;

   Sammanfattning : The aim of this thesis was to develop and test the feasibility of a dietary record routine, where nursing staff assess the patient’s food and fluid intake based on standardised portion sizes and household measurements. The energy intake (EI) was studied with a dietary record in 61 geriatric patients. LÄS MER