Sökning: "formulas"

Visar resultat 21 - 25 av 212 avhandlingar innehållade ordet formulas.

  1. 21. Prenatal diagnosis in routine antenatal care : a randomised controlled trial

    Författare :Sissel Saltvedt; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Ultrasound; fetal ultrasonography; Down s syndrome; chromosomal disorder; nuchal translucency; genetic screening; prenatal diagnosis; abnormalities; gestational age; in vitro fertilization; fetometry; dating formulas; false positive reactions; anxiety;

    Sammanfattning : Nuchal translucency (NT) measurement combined with maternal age has been shown to identify women at an increased risk of carrying a fetus with Down's syndrome (DS) more accurately than does maternal age alone. The aim of this study was to evaluate more widely the effects of two different strategies for prenatal diagnosis. LÄS MER

  3. 22. Ghostpeakons

    Författare :Budor Shuaib; Hans Lundmark; Krzysztof Marciniak; Erik Wahlén; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In this thesis we study peakons (peaked solitons), a class of solutions which occur in certain wave equations, such as the Camassa–Holm shallow water equation and its mathematical relatives, the Degasperis–Procesi, Novikov and Geng– Xue equations. These four non-linear partial differential equations are all integrable systems in the sense of having Lax pairs, infinitely many conservation laws, and multipeakon solutions given by explicitly known formulas. LÄS MER

  4. 23. Runstenar och runristare i det vikingatida Fjädrundaland : En studie i attribuering : eine Studie in Attribuierung

    Författare :Per Stille; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Scandinavian languages - general; runes; runic inscriptions; rune-carver; runology; Rune-Swedish; attribution; runic orthography; Balli; Eiríkr; Lifsteinn; Tíðkumi; Nordiska språk - allmänt; Scandinavian languages; Nordiska språk; nordiska språk; Scandinavian Languages;

    Sammanfattning : The main purpose of this dissertation is to attribute all rune-carvings from the late Viking Age in a small area in central Sweden, Fjädrundaland.Notation and terminology are discussed exhaustively and a suggestion is proffered regarding how runic texts should be rendered. LÄS MER

  5. 24. Automated Theorem Proving in a First-Order Logic with First class Boolean Sort

    Författare :Evgenii Kotelnikov; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; first-order logic; program analysis; program verification; TPTP; automated theorem proving; Vampire;

    Sammanfattning : Automated theorem proving is one of the central areas of computer mathematics. It studies methods and techniques for establishing validity of mathematical problems using a computer. The problems are expressed in a variety of formal logics, including first-order logic. LÄS MER

  7. 25. Improvements of the Bromodeoxyuridine-DNA Flow Cytometry Method for the Study of Cell Proliferation

    Författare :Maria C Johansson; Bröstcancer-genetik; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; head and neck cancer; [3H]thymidine; energy transfer; cell cycle; xenografted tumours; cultured cells; potential doubling time; labelling index; DNA synthesis time; cell proliferation; growth kinetics; Bromodeoxyuridine; DNA flow cytometry; cancer; onkologi; Cytologi; cancerology; oncology; Cytology;

    Sammanfattning : Potential doubling time (Tpot), DNA synthesis time (TS), and labelling index (LI) are fundamental growth kinetics parameters in clinical and experimental cancer research, which may be of further practical importance regarding prognosis and treatment prediction of cancer. They can be measured by bromodeoxyuridine(BrdUrd)/flow cytometry (FCM) methods, where BrdUrd, an analogue of thymidine, is incorporated into DNA and quantified simultaneously with the DNA content. LÄS MER