Sökning: "Singletons"

Visar resultat 1 - 5 av 24 avhandlingar innehållade ordet Singletons.

1. 1. Dualities, Symmetries and Unbroken Phases in String Theory : Probing the Composite Nature of the String

   Författare :Johan Engquist; Joseph Minahan; Charlotte Kristjansen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Theoretical Physics; String Theory; M-Theory; Higher Spin Gauge Theory; Super Yang-Mills Theory; Anti-de Sitter Spacetime; Singletons; Massless Higher Spin Gauge Fields; AdS CFT Correspondence; Spin Chains; Semiclassical Strings; Tensionless Limits; Conformal Symmetry; Supersymmetry; Higher Spin Gauge Symmetry; Integrability; Fysik; Physics; Fysik;

   Sammanfattning : The thesis treats aspects of string/M-theory in anti-de Sitter spacetimes and their supersymmetric completions. By applying the AdS/CFT correspondence, as well as models of spin chains and singletons, we try to attain a better understanding of the underlying symmetries and the unbroken phases of string/M-theory. LÄS MER

3. 2. Obstetric outcome after single embryo transfer

   Författare :Antonina Sazonova; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; in-vitro fertilization; single embryo transfer; neonatal outcome; maternal outcome;

   Sammanfattning : Obstetric outcome after single embryo transfer Department of Obstetrics and Gynecology, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden. Background: Children born after IVF have a poorer neonatal outcome than children born after spontaneous conception, even after adjustment for confounders. LÄS MER

4. 3. Birth Characteristics’ Impacton Future Reproduction and Morbidity Among Twins an dSingletons

   Författare :Marie Bladh; Gunilla Sydsjö; Ann Josefsson; John Carstensen; Orvar Finnström; Karin Pettersson; Linköpings universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Twin; singleton; preterm birth; SGA; reproduction; hospitalization; siblings;

   Sammanfattning : Globally, in both developed and developing countries, the twinning rates have increased since the early 70’s. A large proportion of twins are born preterm and/or small-for-gestational-age (SGA) and/or with a low birth weight. LÄS MER

5. 4. Safety and quality aspects of IVF - neonatal and maternal outcomes following advanced techniques

   Författare :Erica Ginström Ernstad; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; blastocyst transfer; frozen embryo transfer; vitrification; preimplantation genetic testing; neonatal outcome; maternal outcome;

   Sammanfattning : Background: Singletons born following assisted reproductive technology (ART) have adverse neonatal outcome compared to singletons born following spontaneous conception (SC). Moreover, the women undergoing ART are at an increased risk of hypertensive disorders in pregnancy (HDP) and placental complications. LÄS MER

7. 5. Health consequences of adverse fetal growth : studies in twins

   Författare :Sara Öberg; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Findings of associations between birth weight and adult health outcomes have been taken to indicate that fetal growth – and fetal nutrition in particular – may program future health and disease in the developing individual. However, the study of prenatal exposures in humans is challenging, and most of the evidence to support fetal programming thus rests on proxy measures, such as birth weight and birth weight for gestational age. LÄS MER