Sökning: "sekundära"

Visar resultat 6 - 10 av 104 avhandlingar innehållade ordet sekundära.

1. 6. Secondary Metabolites from Mozambican Plants

   Författare :Julião Monjane; Centrum för analys och syntes; []
   Nyckelord :Secondary metabolites; Mozambique; Medicinal plants; Isolation; Structural elucidation; Antileishmanial activity;

   Sammanfattning : Products derived from different natural sources have been used for thousands of years by human beings for their everyday needs. Out of these natural sources, plants were the most affordable. Plant-derived products were used for shelter, food, and as medicines. LÄS MER

3. 7. On the Origin and Distributions of the Inclusions in Production-scale ESR and PESR Remelted Ingots and Materials from Different Ingot Sizes and Solidification Structures

   Författare :Eva Sjöqvist Persson; Pär Jönsson; Torbjörn Carlberg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials Science and Engineering; Teknisk materialvetenskap;

   Sammanfattning : The study was carried out with the aim to evaluate the origin, morphology, and distribution of the non-metallic inclusions (NMI) in electro-slag remelted (ESR) steels and in electro-slag remelted steels using a pressured controlled inert atmosphere (PESR). In addition to the NMI studies, the solidification structure in different ingot sizes were studied in order to define the influence of the solidification on the NMI characteristics. LÄS MER

4. 8. Sample preparation and analysis of metabolites from plants in the families of Cyperaceae, Poaceae and Apiaceae

   Författare :Linus Svenberg; Åsa Emmer; Jenny Lindh; Margareta Sandahl; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gas chromatography; Mass spectrometry; Ultrasound assisted extraction; Solid-phase microextraction; Volatile compounds; Allelopathy; Bioassay; Gaskromatografi; Masspektrometri; Ultraljudsassisterad extraktion; fastfas-mikroextraktion; Flyktiga ämnen; Allelopati; Bioanalys; Kemi; Chemistry;

   Sammanfattning : An important aspect of understanding how plants effect their environmentis the study of volatile compounds and how these influence interactions between plants and other living organisms. The study of these secondary metabolites from plants can be used in practical applications, such as behaviour control of insects, and is an important part in the search for novel compounds that can be used to influence the behaviour of disease spreading vectors. LÄS MER

5. 9. PNA and affinity protein tools for selective tumor targeting of radiopharmaceuticals

   Författare :Hanna Tano; Amelie Eriksson Karlström; Per-Åke Nygren; Dario Neri; KTH; []
   Nyckelord :Cancer therapy; targeted radionuclide therapy; affinity proteins; Affibody molecules; CD38; GRPR; HER2; nanobody; peptide; PNA; RM26; pretargeting; Cancerterapi; radionuklid terapi; affinitetsproteiner; affibody molekyler; CD38; GRPR; HER2; nanobody; peptid; PNA; RM26; pretargeting; Biotechnology; Bioteknologi;

   Sammanfattning : Targeted radiotherapy of cancer intends to selectively deliver cytotoxic radionuclides to tumor cells. Affinity proteins of various kinds are explored for this task, and depending on the affinity protein used, different challenges arise. LÄS MER

7. 10. Speeding up the Atmosphere : Experimental oxidation studies of ambient and laboratory aerosols using a flow reactor

   Författare :Erik Ahlberg; MERGE: ModElling the Regional and Global Earth system; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Secondary organic aerosols; oxidation flow reactor; volatile organic compounds; climate;

   Sammanfattning : Apart from gases, the air we breath consist of tiny, so called, aerosol particles. A cubic metre of air in a relatively clean environment can consist of several billion aerosol particles. The impact of these particles on human health and on climate is significant. LÄS MER