| 1. |
- Hodgins, Sheelagh, et al.
(author)
-
A multisite study of community treatment programs for mentally ill offenders with major mental disorders : Design, measures, and the forensic sample
- 2007
-
In: Criminal justice and behavior. - : SAGE Publications. - 0093-8548 .- 1552-3594. ; 34:2, s. 211-228
-
Journal article (peer-reviewed)abstract
- This article presents reasons for undertaking ""The Comparative Study of the Prevention of Crime and Violence by Mentally Ill Persons"" and reasons for decisions regarding the study design and choice of measures. A brief portrait of the forensic patients that have been recruited is also presented. Community treatment programs could offer long-term cost-effective care for offenders with major mental disorders (MMDs). The study aims to identify the necessary ingredients of an effective program. Sites are selected in four countries where identification of most, if not all, persons with MMD who commit crimes within the catchment area was possible. Within each site, two samples of patients with MMD are recruited, one from a forensic hospital and one from a general psychiatric hospital. Assessments are completed prior to discharge. Participants are followed during a 5-year period. Comparisons of the forensic patients recruited in the four sites indicate many more similarities than differences.
|
|
| 2. |
- Morris, Simon, et al.
(author)
-
The ELT-MOS (MOSAIC) : towards the construction phase
- 2018
-
In: GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY VII. - : SPIE-INT SOC OPTICAL ENGINEERING. - 9781510619586 ; 10702
-
Conference paper (peer-reviewed)abstract
- When combined with the huge collecting area of the ELT, MOSAIC will be the most effective and flexible Multi-Object Spectrograph (MOS) facility in the world, having both a high multiplex and a multi-Integral Field Unit (Multi-IFU) capability. It will be the fastest way to spectroscopically follow-up the faintest sources, probing the reionisation epoch, as well as evaluating the evolution of the dwarf mass function over most of the age of the Universe. MOSAIC will be world-leading in generating an inventory of both the dark matter (from realistic rotation curves with MOAO fed NIR IFUs) and the cool to warm-hot gas phases in z=3.5 galactic haloes (with visible wavelenth IFUs). Galactic archaeology and the first massive black holes are additional targets for which MOSAIC will also be revolutionary. MOAO and accurate sky subtraction with fibres have now been demonstrated on sky, removing all low Technical Readiness Level (TRL) items from the instrument. A prompt implementation of MOSAIC is feasible, and indeed could increase the robustness and reduce risk on the ELT, since it does not require diffraction limited adaptive optics performance. Science programmes and survey strategies are currently being investigated by the Consortium, which is also hoping to welcome a few new partners in the next two years.
|
|
| 3. |
- Örndahl, Eva
(author)
-
Quasar host galaxies at intermediate and high redshifts
- 2003
-
Doctoral thesis (other academic/artistic)abstract
- Quasars form one of the most energetic phenomena in the universe, and can be traced out to very large redshifts. By studying the galaxies which host the active nuclei, important insights can be gained into the processes that trigger and maintain the quasar powerhouse. The evolution rate of the quasar population is furthermore similar to that of ordinary galaxies, which implies a connection between black hole accretion and star formation in the host galaxies. While the properties of quasar host galaxies at low redshift have become better constrained in recent years, less is known about hosts at earlier cosmic epochs. In addition, though radio-quiet quasars are by far more common than their radio-loud counterparts their host galaxies have not been studied to the same extent, in particular not at higher redshifts.An imaging campaign of a large sample of quasars at intermediate redshift (0.4 < z < 0.8) was carried out at optical wavelengths using the Nordic Optical Telescope, and is studied in this thesis together with two smaller samples. The joint material forms more than half of the total number of observed sources in this redshift interval and increases the number of resolved radio-quiet hosts at z>0.4 considerably. The morphology and mean magnitudes are found to be similar for radio-loud and radio-quiet host galaxies. Both types of host are shown to have optical colours as blue as those of present-day late-type spirals and starburst galaxies, which is likely the result of ongoing star formation.With increasing redshift, observations of host galaxies become more difficult. High spatial resolution can be achieved with adaptive optics, but the variation of the point spread function in the near-infrared wavelength band which is most suited for detection is large and rapid. A statistical approach to the problem of characterizing the point spread function has been developed, making use of simulated objects which are matched to the different atmospheric conditions. Bright, compact host galaxies showing signs of merging and interaction were detected in this way for three quasars at z~2.2, which were observed with the ESO 3.6 m telescope. The method is not restricted to host galaxy analysis but can be utilized in other applications as well, provided that the underlying extended source can be described by an analytical model.
|
|
