The role of immunogenetic factors in the aetiology of pre-eclamptic toxaemia of human pregnancy

2 volume setThesis (M.D.) -- University of Adelaide, Dept. of Obstetrics and Gynaecology, 197

Density functional theory of the trapped Fermi gas in the unitary regime

We investigate a density-functional theory (DFT) approach for an unpolarized trapped dilute Fermi gas in the unitary limit . A reformulation of the recent work of T. Papenbrock [Phys. Rev. A, {\bf 72}, 041602(R) (2005)] in the language of fractional exclusion statistics allows us to obtain an estimate of the universal factor, $\xi_{3D}$, in three dimensions (3D), in addition to providing a systematic treatment of finite-$N$ corrections. We show that in 3D, finite-$N$ corrections lead to unphysical values for $\xi_{3D}$, thereby suggesting that a simple DFT applied to a small number of particles may not be suitable in 3D. We then perform an analogous calculation for the two-dimensional (2D) system in the infinite-scattering length regime, and obtain a value of $\xi_{2D}=1$. Owing to the unique properties of the Thomas-Fermi energy density-functional in 2D our result, in contrast to 3D, is {\em exact} and therefore requires no finite-$N$ corrections

On OH Ro-Vibrational Lines in HD 100546: Symmetric or Asymmetric?

The study of planets has fascinated observers for millennia, from careful observers plotting the motions of the \u27wandering stars\u27 to modern astronomers utilizing equipment to study planets within and beyond our Solar System. We have discovered, in recent decades, that planetary systems are found around a large fraction of stars of varying types. The study of the structure of these systems provides a way to study the initial conditions of planet formation and place constraints on models of planet formation and disk-planet interactions. To determine these constraints and identify indirect probes of ongoing planet formation, astronomers have turned to young stellar objects, such as Herbig Ae/Be stars or T Tauri stars, which are surrounded by a disks of gas and dust. By studying these disks, where planet formation takes its first steps, we can determine the signposts of planet formation in disks and complete the planet formation models. This paper investigates one such disk around Herbig star HD 100546. Previous observations of the disk by Liskowsky et al. (2012) and Fedele et al. (2015) have found contradicting OH line profiles. These molecular lines are used to probe the dynamic structure of the inner rim of the outer disk. Liskowsky et al. (2012) present evidence that the asymmetry in the OH line is caused by disk interactions with a massive planetary companion. However, Fedele et. al (2015) show that a similar asymmetric effect can be caused by subsampling of the disk with a narrow slit. In this thesis, the likelihood that a circular disk appears asymmetric is weighed against the likelihood that an asymmetric disk appears symmetric by modeling synthetic observations of both situations. Best practices for future observations of HD 100546 and other circumstellar disks are discussed

Criminaliteitsbeleid: wat werkt?

In dit stuk beantwoorden we de vraag wat verstandig beleid met betrekking tot criminaliteitspreventie is, d.w.z. beleid dat wordt ondersteund door de meest recente wetenschappelijke inzichten. Ook voor lokale initiatieven is het essentieel om beleid met een adequaat onderzoek te begeleiden om de effecten en indien mogelijk de kosten/baten van de onderzochte maatregelen te evalueren. In dit verhaal gaan we in op enkele voorbeelden van beleid op het terrein van criminaliteit, en geven daarbij aan wat werkt en wat niet. We concluderen dat criminaliteitsbeleid niet alleen gericht moet zijn op potentiële daders, maar dat het belangrijker is om de context waarin criminaliteit wordt gepleegd in het beleid te betrekken. Allereerst wordt een aantal belangrijke feiten met betrekking tot criminaliteit uiteengezet. Daarna volgen de principes van criminaliteitsbestrijding. Vervolgens wordt uiteengezet waarom experimenteel onderzoek van groot belang is. We eindigen met een overzicht van waar de beste informatie te vinden is