Supergene Enrichment of Silver Ores with Special Reference to those from Neihart, Montana.

In the development of a technique it was necessary to learn the fundamentals of ore microscopy as applied to the various minerals of silver, which included the use of reflected polarized light, etch reactions, micro­chemical analysis, and sight recognition of mineral. In addition it was necessary to become familiar with the accepted criteria of sequence, replacement, and other textural phenomena

Comments: Blessed Are the Faithful: An Analysis of the Scope and Applicability of the Good Faith Exception to the Exclusionary Rule

The fourth amendment gives the people the right to be secure from unreasonable searches and seizures of their person, houses, papers, and effects. For years, the Supreme Court has mandated that any property seized in violation of the fourth amendment be excluded from evidence at the defendant\u27s trial. Recently, however, the Supreme Court has created a good faith exception to the exclusionary rule and caused uncertainty regarding the new exception\u27s application. The author reviews the development of the exclusionary rule and analyzes the effect of the good faith exception. The author also discusses the application of the exception to searches and seizures conducted with and without warrants, and considers the proper course for Maryland courts to follow

Applications of a Neo-Aristotelian metaphysics of powers in the domain of Philosophy of Religion

This thesis explores some applications of a Neo-Aristotelian metaphysics to philosophy of religion, with a particular focus on the metaphysics of powers. This widens the uses of such an ontology within the contemporary literature, since power metaphysics has been much neglected in philosophy of religion. The thesis starts by introducing power ontology and many of the questions that have been explored within it, noting when these will be relevant for what is to come later in the thesis. It then turns to exploring ways in which, I claim, a power ontology can be used within philosophy of religion. The first thing I explore is the Trinity, where I claim that powers are able to provide a metaphysics for this. The following chapter explores how God might create laws of nature and why I think the powers position should be preferred. I then explore how powers might provide the foundation to object to the fine- tuning argument, and after formulating this response explore how successful it is. In the penultimate chapter I examine how powers might inspire us with a solution to the Euthyphro dilemma against theistic meta-ethics, and formulate a position based on this. In the final chapter I then try to show how what I have said in the previous chapter can be thought of in terms of powers alone, such that powers have a role to play within axiology

Comments: Blessed Are the Faithful: An Analysis of the Scope and Applicability of the Good Faith Exception to the Exclusionary Rule

The fourth amendment gives the people the right to be secure from unreasonable searches and seizures of their person, houses, papers, and effects. For years, the Supreme Court has mandated that any property seized in violation of the fourth amendment be excluded from evidence at the defendant\u27s trial. Recently, however, the Supreme Court has created a good faith exception to the exclusionary rule and caused uncertainty regarding the new exception\u27s application. The author reviews the development of the exclusionary rule and analyzes the effect of the good faith exception. The author also discusses the application of the exception to searches and seizures conducted with and without warrants, and considers the proper course for Maryland courts to follow

Image reconstruction by Mumford-Shah regularization with a priori edge information

The Mumford-Shah functional has provided an important approach for image denoising and segmentation. Recently, it has been applied to image reconstruction in fields such as X-ray tomography and electric impedance tomography. In this thesis we study the applicability of the Mumford-Shah model to a setting, where a priori edge information is available and reliable. Such a situation occurs for example in biomedical imaging, where multimodal imaging systems have received a lot of interest. The regularization terms in the Mumford-Shah functional force smoothness of the image within individual regions and simultaneously detect edges across which smoothing is prevented. We propose to divide the edge penalty into two parts depending on the a priori edge information. We investigate the proposed model for well-posedness and regularization properties under an assumption of pointwise boundedness of the underlying image. Furthermore, we present two variational approximations that allow numerical implementations. For one we prove that it Gamma converges to a special case of our proposed model, the other we motivate heuristically. The resulting algorithm alternates between an image reconstruction and an image evaluation step. We illustrate the feasibility with two numerical examples

Workplace-based assessment in clinical radiology in the UK - a validity study

In 2010, the Royal College of Radiologists introduced workplace-based assessments to the postgraduate training pathway for clinical radiologists in the UK. Whilst the system served the purpose of contributing to high-stakes annual judgements about radiology trainees’ progression into subsequent years of training, it was primarily intended to be formative. This study was prompted by an interest in whether the new system fulfilled this formative role. Data collection and analysis spanned the first three years of the new system and followed a multi-methods approach. Descriptive statistical analysis was used to explore important parameters such as the timing and number of assessments undertaken by trainees and assessors. Using the literature and an iterative analysis of a large sample of trainee data, a coding framework for categories of feedback quality enabled assessors’ written comments to be explored using deductive and inductive qualitative analysis, with inferential statistical analysis of coded assessor feedback statements. For example, Ragin’s (1987, 2000, 2008) qualitative comparative analysis, QCA, was used to explore whether the assessments met necessary and/or sufficient conditions for high quality feedback. Pairs of assessor-trainee feedback comments were also analysed to establish whether any dialogic feedback interactions occurred. The study presents evidence that despite its intentions, the new system is generally failing to meet its primary, formative aim. As a consequence, the influence of negative washback on assessment practice was reflected in a number of findings. For example, there was evidence of trainees taking an instrumental approach to the assessments, undertaking only the prescribed minimum of assessments or completing assessments in the later stages of placements. Combined with evidence of retrospective assessment, i.e. after completion of the placements, the observed patterns of assessment over the three years are consistent with a box-ticking approach. This study explores the contextual policy and practice dimensions underpinning these and related findings and discusses the implications and recommendations for future arrangements

Adaptive Scheduling Across a Distributed Computation Platform

A programmable Java distributed system, which adapts to available resources, has been developed to minimise the overall processing time of computationally intensive problems. The system exploits the free resources of a heterogeneous set of computers linked together by a network, communicating using SUN Microsystems' Remote Method Invocation and Java sockets. It uses a multi-tiered distributed system model, which in principal allows for a system of unbounded size. The system consists of an n-ary tree of nodes where the internal nodes perform the scheduling and the leaves do the processing. The scheduler nodes communicate in a peer-to-peer manner and the processing nodes operate in a strictly client-server manner with their respective scheduler. The independent schedulers on each tier of the tree dynamically allocate resources between problems based on the constantly changing characteristics of the underlying network. The system has been evaluated over a network of 86 PCs with a bioinformatics application and the travelling salesman optimisation problem