Sökning: "Sample pretreatment"

Visar resultat 21 - 25 av 26 avhandlingar innehållade orden Sample pretreatment.

  1. 21. Transurethral microwave thermotherapy of benign prostatic hyperplasia : a clinical and methodological evaluation

    Författare :Anders Hallin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :benign prostatic hyperplasia; microwave thermotherapy; long-termfollow-up; MRI; semen; androgen.ISBN;

    Sammanfattning : Transurethral microwave thermotherapy (TUMT) is a relatively new type of treatment for symptomatic benign prostatic hyperplasia. The aim of this study was to evaluate different aspects of TUMT such as catheter characteristics, morphological changes, effects on hormones and semen emission as well as to assess long-term treatment outcome. LÄS MER

  3. 22. Fluid and nutrition support before total hip replacement surgery

    Författare :Stefan Ljunggren; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Surgical trauma results in a variety of physiological reactions in the body, including transient insulin resistance. The effect of surgery on postoperative wellbeing has been linked to this insulin resistance, which can be prevented through the ingestion of carbohydrate-rich liquid before surgery. LÄS MER

  4. 23. New Materials and Improved Ambient Techniques in Mass Spectrometry

    Författare :Nicolò Riboni; Leopold Ilag; Elisa Robotti; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mass Spectrometry; Solid Phase Microextraction; Ambient Mass Spectrometry; Desorption Electrospray Ionization; Paper Spray Ionization; Cavitands; BTEX; New Psychoactive Substances; Analytical Chemistry; analytisk kemi;

    Sammanfattning : Mass spectrometry (MS) is used in several fields, e.g. biology, environmental monitoring, medicine and forensics due to excellent qualitative and quantitative capabilities. The development of new instrumental setups and ionization sources is crucial to analyze a variety of compounds at trace levels. LÄS MER

  5. 24. Ultrastructure of the Primary Cell Wall of Softwood Fibres Studied using Dynamic FT-IR Spectroscopy

    Författare :Jasna Stevanic Srndovic; Lars Wågberg; Per M. Claesson; Paul Gatenholm; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; primary cell wall; polymer interactions; viscoelasticity; dynamic FT-IR spectroscopy; dynamic 2D FT-IR spectroscopy; cellulose; xyloglucan; pectin; protein; lignin; low degree sulphonation; cellulose allomorphs; Wood fibre and forest products; Träfiber- och virkeslära;

    Sammanfattning : The primary cell wall is a complex multipolymer system whose composite structure has been mostly determined from chemical and biochemical studies. Although the primary cell wall serves a central role, with regard to the connective properties of fibres, knowledge about the interactions among the polymers, when it comes to the mechanical properties, is very limited. LÄS MER

  7. 25. Orthodontic care in Sweden : outcome in three counties

    Författare :Kurt Bergström; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Dental Health Services; malocclusion; needs and demand; non-specialist; orthodontics; outcome measures; patient satisfaction; specialist; treatment difficulty; treatment priority.;

    Sammanfattning : The main aim of these studies was to evaluate the outcome of orthodontic care in Sweden from the professional's and the patient's perspective. A new model for priority-planning and for evaluating the different factors influencing the decision of orthodontic treatment was devised. LÄS MER