35 research outputs found
U of M Crookston to host author Sarah Stonich at Fournet Building October 23
Bengtson, Jess. (2024). U of M Crookston to host author Sarah Stonich at Fournet Building October 23. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/270925
Special Issue: The future of teaching, training and learning in forensic and crime sciences
This is the author accepted manuscript. The final version is available from Elsevier via the DOI in this recor
Le Collège de France et l’École pratique des hautes études vus et vécus par Gaston Paris
Fig. 1 — Gaston Paris vers la fin de sa vie. Y arriver Quand Victor Duruy lance les cours libres de la rue Gerson, en 1866, Gaston Paris est prêt. Après deux années universitaires passées en Allemagne, la première à Bonn (1856-1857), la deuxième à Goettingue (1857-1858), sans qu’il y ait pour autant poursuivi des études bien ciblées, il était entré à l’École nationale des chartes et avait commencé en même temps, comme c’était fréquent à l’époque, des études de droit. Sorti de l’École en 1862..
Étude mathématique et numérique de modèles de Spray épais
This thesis is dedicated to the modeling, mathematical analysis, and numerical analysis of a partial differential equation system describing the evolution of a suspension of neutral particles in a surrounding fluid, often referred to as a spray. The dispersed phase is modeled by the equations of kinetic theory, while the continuous phase is described by the equations of fluid mechanics. We focus particularly on the case of so-called dense sprays.Chapter 2 is devoted to the problem of constructing solutions for the dense spray system. We introduce a new system in which singular terms are regularized, and we prove the existence and uniqueness of solutions with Sobolev regularity, locally in time.Chapter 3 explores the analogy between the dense spray system and the Vlasov-Poisson system describing an electrostatic plasma. We demonstrate that, in the absence of friction, the dense spray system exhibits a property of linear damping of acoustic energy, analogous to Landau damping, which is well known in plasma physics. This effect is illustrated by numerical results.Chapter 4 is dedicated to the numerical simulation of the dense spray system. We present an approach that combines existing methods: a semi-Lagrangian method for the dispersed phase, coupled with a finite volume method for the continuous phase. We also address the packing limit issue and introduce two methods to preserve this packing limit at the discrete level. Finally, we present numerical results.Cette thèse est consacrée à la modélisation, à l'analyse mathématique et à l'analyse numérique d'un système d'équations aux dérivées partielles décrivant l'évolution d'une suspension de par- ticules neutres dans un fluide ambiant, souvent désignée sous le nom de spray. La phase dispersée est modélisée par les équations de la théorie cinétique, tandis que la phase continue est décrite par les équations de la mécanique des fluides. Nous nous concentrons en particulier sur le cas des sprays dits épais. Le chapitre 2 est consacré au problème de la construction de solutions pour le système des sprays épais. Nous introduisons un nouveau système dans lequel les termes singuliers sont régularisés et nous démontrons l'existence et l'unicité de solutions avec une régularité de type Sobolev, localement en temps. Le chapitre 3 explore l'analogie entre le système des sprays épais et le système de Vlasov- Poisson décrivant un plasma électrostatique. Nous montrons qu'en l'absence de friction, le système des sprays épais présente une propriété d'amortissement linéaire de l'énergie acoustique, analogue à l'amortissement de Landau bien connu en physique des plasmas. Cet effet est illustré par des résultats numériques. Le chapitre 4 est consacré à la simulation numérique du système des sprays épais. Nous proposons une approche combinant des méthodes existantes : une méthode semi-Lagrangienne pour la phase dispersée, couplée à une méthode de type Volume Fini pour la phase continue. Nous abordons également le problème de la limite de packing et introduisons deux méthodes permettant de conserver cette limite au niveau discret. Enfin, nous présentons des résultats numériques
INVESTIGATION ON THE STABILITY IN A THICK SPRAY MODEL
International audienceThe aim of this work is to discuss linear stability and instability properties of a thick spray model. We linearize the equation and we give a criterion on the equilibrium to have linear instability. We also present numerical illustrations.Le but de cet article est de discuter des propriétés de stabilité et d’instabilité linéaire d’un modèle de spray épais. Nous linéarisons les équations et nous donnons un critère sur l’équibre pour avoir instabilité linéaire. Nous présentons aussi des illustrations numériques
Forensic Evidence: International Criminal Courts and Tribunals
This is the author accepted manuscript. The final version is available from Oxford University Press via the link in this recor
France
This is the author accepted manuscript. the final version is available from Hart Publishing via the link in this recor
Capturing mental health issues in international criminal law and justice. The input of the International Criminal Court
This is the author accepted manuscript. The final version is available from Routledge via the DOI in this recordThis chapter analyses the concept of mental health in the law and case law of the International Criminal Court (ICC) while exposing the discrepancies that might exist between a rather progressive theory and a cautious practice. It starts by focusing on the definition of certain international crimes which incorporate mental health issues through the concept of mental harm; a harm that is being increasingly acknowledged by the judges. It then turns to the judgments issued by the Court which reveal that, when approaching mental health issues, judges do not deviate from the text of the law but appear to be exercising a degree of caution. To illustrate this prudence, the chapter explores the judicial attitude towards the testimonies of traumatised witnesses as well as the judicial assessment of the mental capacity of the defendant
Measuring Access and Practice: Designing a Survey Methodology for the Hygiene, Sanitation and Water Sector
Access to safe water and sanitary means of excreta disposal are essential elements of
human development and poverty alleviation. It is estimated that one in four people in
the developing world lacks access to water while over half the population has no
access to sanitation. From the Alma-Ata declaration in 1978 to the recent Millennium
Development Goals, efforts to improve this situation have been hampered by the lack
of meaningful indicators to measure hygiene, sanitation and water coverage and
establish progress towards the goals and targets set out by the international
community.
This thesis aims to determine if measuring prevalence of access to water~ sanitation
and the practice of hygienic behaviour in hous~hold surveys can be.improved. With
no indicators available in current international' laws and targets, various aspects of
access and practice were examined to design indicators for field-testing. By using
- existing data sets, the research established that there is a high geographic clustering of
the measures of interest, which results in large design effects (deff) and rates of
homogeneity (roh) in cluster surveys. Based on the calculated roh optimum numbers
ofcluster and sample size were calculated for the field trials. This requires
introducing survey costs in the sample size calculations. The high clustering of water
and sanitation indicator require large sample sizes, resulting in large amounts of data
which organisations in the four field trials in Kosovo, South Africa, Kenya and Laos
found difficult to handle. Practical problems in the implementation of the survey
method resulted in non-sampling errors and could cause reluctance in adoption the
methodology. The research improved water and sanitation indicators but found that
for individual behaviour such as hygiene the household is not a suitable sampling unit.
It also showed that observation among interviewers have to be better standardised to
reduce the inter-surveyor.variation. Representative sampling is the current bottleneck
in the development of such a survey method. Current method requires a good
understanding of sampling theory as well as reliable sample frames, which are rarely
available to implementing organisations. Alternative sampling methods are
suggested, and recommendations are made for the further development ofthe survey
method designed in this research, which to date may be too complex for widespread
use
