Floyd-Thomas\u27s Making it Plain: Liberating Black Church History (Book Review)

A Review of Making it Plain: Liberating Black Church History, by Juan M. Floyd-Thomas. Nashville, TN: Abingdon Press, 2014. 163 pp. $17.99. ISBN 978067833275

Kendall\u27s Connected: Christian Parenting in an Age of IM and MySpace (Book Review)

A Review of Connected: Christian Parenting in an Age of IM and MySpace, by Peggy Kendall. Valley Forge, PA: Judson Press, 2007. 123 pp. $12.00. ISBN 978081701516

Gordon and Kacandes\u27s Let’s talk about death: Asking questions that profoundly change the way we live and die (Book Review)

A review of Gordon, S., & Kacandes, I. (2015). Let’s talk about death: Asking questions that profoundly change the way we live and die. Amherst, NY: Prometheus Books. $17.00. 252 pp. ISBN 978163388112

Solubility behaviour, crystallisation kinetics and pour point : a comparison of linear alkane and triacyl glyceride solute/solvent mixtures

Mixtures of either a hydrocarbon wax in a hydrocarbon solvent or a long chain triacyl glyceride (TAG) in a TAG solvent show complex solubility boundary temperature hysteresis and precipitated crystal network formation leading to gelation. For these industrially-important systems, we show how the equilibrium solubility and its hysteresis, crystallisation kinetics and pour point temperature vary with solute concentration for representative examples of both hydrocarbon (n-tetracosane (C24) solute in n-heptane (C7) solvent) and TAG (tristearin (SSS) solute in tricaprylin (CCC) solvent) mixtures. The behaviour is modelled with good accuracy; thereby providing a useful aid to formulation and process optimisation

Strategy Choices of Firms and Market Structure

This paper suggests a new approach to the empirical analysis of market structure. Market concentration is an aspect of distribution of market shares of firms, and market shares are best modelled at the firm level, bringing into play strategy choices made by firms. It follows that a useful approach to explaining concentration would be a two stage one: to estimate firm size or market shares as a function of firm level determinants, and to use the information in these estimates to assess the relative contributions of firm characteristics to concentration. The method is illustrated by application to selected Polish manufacturing industries in the early transition period.Market concentration; Firm Strategy; Transition; Poland

Problem-formulation in a South African organization. Executive summary

Complex Problem Solving is an area of cognitive science that has received a good amount of attention, but theories in the field have not progressed accordingly. In general, research of problem solving has focussed on identifying preferable methods rather than on what happens when human beings confront problems in an organizational context Queseda, Kirtsch and Gomez (2005) Existing literature recognises that most organizational problems are ill-defined. Some problems can become well-defined whereas others are and remain ill-structured. For problems that can become well-defined, failure to pay attention to the area of problem definition has the potential to jeopardise the effectiveness of problem-formulation and thus the entire problem solving activity. Problem defining, a fundamental part of the problem-formulation process, is seen as the best defence against a Type III Error (trying to solve the wrong problem). Existing literature addresses possible processes for problem-formulation and recognises the importance of applying problem domain knowledge within them. However, inadequate attention is given to the possible circumstances that, within an organization, the participants do not know enough about the problem domain and do not recognise the importance of applying adequate problem domain knowledge or experience to the problem-formulation process. A case study is conducted into exactly these circumstances as they occurred and were successfully addressed within Eskom Holdings Ltd (Eskom), the national electricity utility in South Africa. The case study is a fundamental part of this research project, which explores the gap in the existing body of knowledge related to the circumstances described above and specifically to problems that can become well-defined, and provides the basis for the innovation developed herein that addresses that gap

The Design of Mechanically Compatible Fasteners for Human Mandible Reconstruction

Mechanically compatible fasteners for use with thin or weakened bone sections in the human mandible are being developed to help reduce large strain discontinuities across the bone/implant interface. Materials being considered for these fasteners are a polyetherertherketone (PEEK) resin with continuous quartz or carbon fiber for the screw. The screws were designed to have a shear strength equivalent to that of compact/trabecular bone and to be used with a conventional nut, nut plate, or an expandable shank/blind nut made of a ceramic filled polymer. Physical and finite element models of the mandible were developed in order to help select the best material fastener design. The models replicate the softer inner core of trabecular bone and the hard outer shell of compact bone. The inner core of the physical model consisted of an expanding foam and the hard outer shell consisted of ceramic particles in an epoxy matrix. This model has some of the cutting and drilling attributes of bone and may be appropriate as an educational tool for surgeons and medical students. The finite element model was exercised to establish boundary conditions consistent with the stress profiles associated with mandible bite forces and muscle loads. Work is continuing to compare stress/strain profiles of a reconstructed mandible with the results from the finite element model. When optimized, these design and fastening techniques may be applicable, not only to other skeletal structures, but to any composite structure