Rietveld analysis of cellotetraose

Issued as Quarterly progress reports no. [1-5], and Final report, Project no. G-41-62

Structural location and role of hydrogen ions in kaolinite and its products in aluminum removal

Issued as Quarterly reports no. [1-5], Annual progress report and Reprint, Project no. G-41-614 (subproject is E-18-624

Tooth enamel apatite at the atomic level

Issued as Progress report, Project no. G-41-643 (continues G-41-635

Tooth enamel apatite at the atomic level

Issued as Progress reports no. [1-6], Project no. G-41-635 (continued by G-41-643

Structural location and role of hydrogen ions in kaolinite and its products in aluminum removal

Issued as Quarterly reports no. [1-7], Annual report and Final report, Project no. G-41-625 (subproject is E-18-625/Moody/School of Ceramic Engineering

Send Your Holy Spirit: Reflections on the Theology of Virtual Eucharist in Times of COVID-19

This article explores the issues concerning the intersection of spirituality, sacramentality, proximity, and health safety in light of extreme circumstances such as the current COVID-19 pandemic. We begin by tracing the origins of the sacrament of the Eucharist, including the Eucharistic agency in the lives of the community. The second part of the analysis discusses the nature of community and how it relates to breaking bread and sharing wine. The last part of the article centers on community practice within the context of queering ecclesiology and rites through two examples, one in Latin America and the other in Asia

The Role of Rainfall Impact and Surface Flow in Soil Detachment and Transport

Soil erosion caused by rainfall is a very complex physical process. To evaluate the mechanism of erosion so that an assessment can be made of the extent to which it may be controlled necessarily begins with an understanding of the basic fundamental factors involved. The purpose of this study involves the development of an insight of the relative importance of the roles played by various contributors to the erosion process. Particular emphasis is placed on the contribution of rainfall detached soil to total soil loss. Three soil types, Barnes loam, Crofton silt loam and Central sandy loam, were prepared with preformed rills in a laboratory plot and subjected to simulated rainfall. During rainfall application, determinations were made of the exact source of all soil that was detached and carried off the plot. The mode of transport by splash or by surface flow, of that detached soil, was ascertained. Since transportation of most detached soil particles is directly related to runoff, the role of infiltration and runoff was also investigated extensively. Infiltration rates were found to vary, being greater in plot areas within the rills than between the rills. This appeared to be a result of rainfall impact forming a well defined and impervious surface seal in the areas outside the rills. Within the rills, a layer of flowing runoff water acted as a buffer between the soil surface and the impacting waterdrops, thus impeding the formation of an effective surface seal. In order to determine if rainfall impact or surface runoff was the prime source of energy for soil detachment, simulated rainfall was applied both with natural energy and with most of the energy removed. Removal of 89 percent of the energy of impact without reducing the application rate decreased soil losses by 90 percent or more, indicating that the energy of impact of falling raindrops is the major force initiating soil detachment. Erosion rates within the rills were nearly identical to the rates of erosion in the areas between the rills when using a cohesive soil such as a Barnes loam. For less cohesive soils, such as Crofton silt loam and Central sandy loam, flowing water increased the rates of erosion in the rills over that in areas between rills. However, even on these soils rainfall energy was still the dominant force initiating erosion. Mode of transport of detached soil particles was separated into two portions, that transported in drop splash alone and that transported by a combined action of surface flow and splash. Even though the normal rainfall impact energy was reduced, at least 80 to 90 percent of the soil transported off the areas between the rills was carried by combined surface flow end splash. This was transported either to the rills or off the lower end of the plot. The remainder was transported by splash action alone. The susceptibility of a soil to splash erosion or rill erosion is an important physical parameter of a soil. The three soils tested in this study included a wide range of physical characteristics, with no single measured parameter being sufficient to adequately indicate a soil\u27s susceptibility to splash or rill erosion. The characteristic of cohesiveness of a soil provides a superior single indicator of this. However, if such a parameter is to be used, there is a need for a means of accurately describing the cohesive properties of a soil

A Methodology for Operationalizing Enterprise Architecture and Evaluating Enterprise IT Flexibility

We propose a network-based methodology for analyzing a firm’s enterprise architecture. Our methodology uses “Design Structure Matrices” (DSMs) to capture the coupling between components in the architecture, including both business and technology-related elements. It addresses the limitations of prior work, in that it i) is based upon the actual architecture “in-use” as opposed to planned or “idealized” versions; ii) identifies discrete layers in a firm’s architecture associated with different technologies (e.g., applications, servers and databases); iii) reveals the main “flow of control” within an architecture (i.e., the set of inter-connected components); and iv) generates measures of architecture that can be used to predict performance. We demonstrate the application of our methodology using a novel dataset developed with the division of a large pharmaceutical firm. The dataset consists of all components in the enterprise architecture, the observed dependencies between them, and estimated costs of change for software applications within this architecture. We show that measures of the architecture derived from a DSM predict the cost of change for software applications. In particular, applications that are tightly coupled to other components in the architecture cost more to change. The analysis also shows that the measure of coupling that best predicts the cost of change is one that captures all direct and indirect connections between components (i.e., it captures the potential for changes to propagate via all possible paths between components). Our work represents an important step in making the concept of enterprise architecture more operational, thereby improving a firm’s ability to understand and improve its architecture over time

Research Exchange - April 6, 2021 Anatomy of a Good Paper - Choosing Research Topics

Robert Davison and Alan Dennis discuss considerations in selecting a good and relevant research topics. Moderated by Amber Young, Davison and Dennis will focus on positioning and motivation to improve the overall contribution to IS research. Additionally, discussions focus on the limitations of gap-spotting and the position that research should be meaningful in its academic and practical implications

Visualizing and Measuring Enterprise Application Architecture: An Exploratory Telecom Case

We test a method for visualizing and measuring enterprise application architectures. The method was designed and previously used to reveal the hidden internal architectural structure of software applications. The focus of this paper is to test if it can also uncover new facts about the applications and their relationships in an enterprise architecture, i.e., if the method can reveal the hidden external structure between software applications. Our test uses data from a large international telecom company. In total, we analyzed 103 applications and 243 dependencies. Results show that the enterprise application structure can be classified as a core-periphery architecture with a propagation cost of 25%, core size of 34%, and architecture flow through of 64%. These findings suggest that the method could be effective in uncovering the hidden structure of an enterprise application architecture