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Visar resultat 11 - 15 av 427 avhandlingar som matchar ovanstående sökkriterier.

1. 11. Liver regeneration : With reference to malnutrition and growth factors

   Författare :Stefan Skullman; Linköpings universitet; []
   Nyckelord :cholecystokinin; energy substrates; epidermal growth factor; insulin-like growth factor I; liver composition; liver regeneration; malnutrition; pancreaticobiliary diversion; protein synthesis; rat; transfonning growth factor alpha; MEDICINE; MEDICIN;

   Sammanfattning : The liver has a unique capacity to regenerate after damage, irrespective of cause. The regulatory mechanisms of this regeneration are not fully known. Liver regeneration· is associated with rapid growth and thereby increased demands for energy and synthesis of new compounds. LÄS MER

3. 12. Transcription factor control in neuronal maintenance and survival

   Författare :Banafsheh Kadkhodaei; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The Transcription factor (TF) Nurr1 is essential for the development of a group of dopamine neurons that are located in the ventral midbrain (also referred to as mesencephalon). A progressive pathology of these midbrain dopamine (mDA) neurons is evident in Parkinson s disease, the most frequent neurodegenerative movement disorder. LÄS MER

4. 13. Nutritional aspects of behaviour and biology during pregnancy and postpartum

   Författare :Anette Lundqvist; Herbert Sandström; Katarina Hamberg; Torbjörn Bäckström; Johan Hultdin; Margareta Larsson; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pregnancy; antenatal care; dietary advice; qualitative; dietary intake; cross-sectional; vitamin D levels; alloprenanolone; weight gain; longitudinal; Clinical Chemistry; klinisk kemi;

   Sammanfattning : BackgroundA well-balanced nutritious diet is important for the pregnant woman and the growing fetus, as well as for their future health. Poor nutrition results from both over-consumption of energy-rich foods which can lead to a higher weight gain than is healthy and under-nutrition of essential nutrients. LÄS MER

5. 14. Calculation and Measurement Methods for the Performance of Solar Collectors. Models of Flat Plate Collectors, Transparent Insulation and Efficiency Factors

   Författare :Bengt Hellström; Avdelningen för Energi och byggnadsdesign; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transparent insulation; Test method; Calculation method; Concentrating collector; Efficiency factor; Fin efficiency; Flat plate collector; Heat conductivity; Honeycomb; Measurement method; Performance; Solar transmittance; Solar collector; Collector model; Energy research; Energiforskning;

   Sammanfattning : This thesis deals with models of flat plate collectors, transparent insulation and efficiency factors. An equation for the energy output from a glazed flat plate collector is derived by modelling the collector efficiency factor, F´ as the sum of a constant and a temperature dependent part. LÄS MER

7. 15. Fundamental Bounds on Performance of Periodic Electromagnetic Radiators and Scatterers

   Författare :Andrei Ludvig-Osipov; B. Lars G. Jonsson; Christophe Caloz; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Q-factor; bandwidth; antenna arrays; periodic structures; physical bounds; physical limitations; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : In this thesis, the optimal bandwidth performance of periodic electromagnetic radiators and scatterers is studied. The main focus is on the development and application of methods to obtain fundamental physical bounds, relating geometrical parameters, frequency bandwidth, efficiency and radiation characteristics of periodic electromagnetic structures. LÄS MER