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This paper describes a dialogue modelling approach to information access. We apply this approach to the design of software used by management professionals for whom technology should be seen and not learnt. From dialogue data we identify context and mutual coverage as key dialogue features for this class of interface. We compare the handling of these features by existing systems, describe a novel query mechanism called Query By Format and conclude with the results of an evaluation study noting its strengths and weaknesses.

Scholars have begun calling for broader conceptualisations of moral disengagement processes that reflect the interaction of dispositional and situational antecedents to a predilection to morally disengage. The authors argue that collective leadership may be one such contingent antecedent. While researching leaders from the Gilded Age of American business history, the authors encountered a compelling historical case that facilitates theory elaboration within these intersecting domains. Interpreting evidence from the embittered leader dyad of Andrew Carnegie and Henry Clay Frick, the authors show how leader egoism can permeate moral identity to promote symbolic moral self-regard and moral licensing, which augment a propensity to morally disengage. The authors use insights developed from our analysis to illustrate a process conceptualisation that reflects a dispositional and situational interaction as a precursor to moral disengagement and explains how collective leadership can function as a moral disengagement trigger/tool to reduce cognitive dissonance and support the cognitive, behavioural, and rhetorical processes utilised to justify unethical behaviour.

Children experience toxic stress if there is pronounced activation of their stress-response systems, in situations in which they do not have stable caregiving. Due to their exposure to multiple poverty-related risks, African American children may be more susceptible to exposure to toxic stress. Toxic stress affects young children’s brain and neurophysiologic functioning, which leads to a wide range of deleterious health, developmental, and mental health outcomes. Given the benefits of early care and education (ECE) for African American young children, ECE may represent a compensating experience for this group of children, and promote their positive development.

The Bureau of Economics in the Federal Trade Commission has a three-part role in the Agency and the strength of its functions changed over time depending on the preferences and ideology of the FTC’s leaders, developments in the field of economics, and the tenor of the times. The over-riding current role is to provide well considered, unbiased economic advice regarding antitrust and consumer protection law enforcement cases to the legal staff and the Commission. The second role, which long ago was primary, is to provide reports on investigations of various industries to the public and public officials. This role was more recently called research or “policy R&D”. A third role is to advocate for competition and markets both domestically and internationally. As a practical matter, the provision of economic advice to the FTC and to the legal staff has required that the economists wear “two hats,” helping the legal staff investigate cases and provide evidence to support law enforcement cases while also providing advice to the legal bureaus and to the Commission on which cases to pursue (thus providing “a second set of eyes” to evaluate cases). There is sometimes a tension in those functions because building a case is not the same as evaluating a case. Economists and the Bureau of Economics have provided such services to the FTC for over 100 years proving that a sub-organization can survive while playing roles that sometimes conflict. Such a life is not, however, always easy or fun.

Professionals often dislike dirty work, yet they accommodate or even embrace it in everyday practice. This chapter problematizes Andrew Abbott’s professional purity thesis by examining five major forms of impurities in professional work, namely impurity in expertise, impurity in jurisdictions, impurity in clients, impurity in organizations, and impurity in politics. These impurities complicate the relationship between purity and status as some impurities may enhance professional status while others may jeopardize it, especially when the social origins of professionals are rapidly diversifying and professional work is increasingly intertwined with the logics of market and bureaucracy. Taking impurities seriously can help the sociology of professions move beyond the idealistic image of an independent, disinterested professional detached from human emotions, turf battles, client influence, and organizational or political forces and towards a more pragmatic understanding of professional work, expertise, ethics and the nature of professionalism.

State and national standards compel teachers to introduce historical topics through multiple diverse texts, emphasizing the use of informational texts. Trade books allow teachers to meet these standards while also meeting the needs of diverse students. Primary sources serve as an additional curricular resource filling the gaps in information not covered by textbooks and trade books and allowing students to gain a more complete and accurate understanding of historical figures and events. Standards leave the selection and implementation of appropriate trade books, primary sources, and other curricular resources to the classroom teacher. In this research, I qualify and quantify how President Andrew Jackson, a very controversial historical figure, is portrayed in trade books. Misrepresentations within trade books concerning Jackson are reported and analyzed. Suggestions and a rationale for trade book and primary source selection and implementation in elementary, middle, and secondary school are addressed.

Projection sintering, a system for selectively sintering large areas of polymer powder simultaneously with a high-power projector is introduced. This paper aims to evaluate the suitability of laser sintering (LS) process parameters for projection sintering, as it uses substantially lower intensities, longer exposure times and larger areas than conventional LS.

The tradeoffs in sintering outcomes are evaluated by creating single layer components with varied exposure times and optical intensities. Some of these components were cross-sectioned and evaluated for degree of densification, while the single-layer thickness and the maximum tensile force was measured for the rest.

Shorter exposure times and higher intensities can create thicker and therefore stronger parts than when equal energy is applied over longer exposures. This is different from LS in which energy input (Andrew’s Number) is accepted as a reliable process variable. This difference is likely because significant thermal energy is lost from the sintering region during the exposure time – resulting in reduced peak temperatures. These thermal losses can be offset by imparting additional energy through increased exposure time or light intensity.

Most methods for evaluating LS process parameters, such as the energy melt ratio and Andrew’s Number, estimate energy input from basic process parameters. These methods do not account for thermal losses and assume that the powder absorbs all incident light. These methods become increasingly inaccurate for projection sintering with visible light where exposure times are much higher (>1s) and a larger portion of the light is reflected from the power’s surface. Understanding the appropriate sintering criteria is critical for the development of long-exposure sintering.

A new method of selectively sintering large areas is introduced that could sinter a wider variety of materials by enabling longer sintering times and may increase productivity relative to LS. This work shows that new processing parameters are required for projection sintering as traditional LS process parameters are inadequate.

We offer our readers a special Norwich Conference Souvenir number of “The Library World” which we trust they will find of permanent interest. It contains several features to which we wish to draw their attention. With regard to our article “The Library Association: Old and New Councillors” we thank those who have so kindly sent us details of their career. It has unfortunately been impossible in the short time at our command to obtain portraits of more than a few of the Councillors, and we have therefore decided to omit them in the hope that at some future opportunity we may be able to get together a more complete collection.

Special education in the USA is, in most respects, a 20th century phenomenon and is now governed primarily by federal legislation first enacted in 1975. The federal law in its most recent reauthorization (2004) continues to require a free appropriate public education (FAPE) for all students with disabilities, a full continuum of alternative placements (CAP) ranging from residential or hospital care to inclusion in general education, an individual education plan or program (IEP) for each student identified as needing special education, and placement in the least restrictive environment (LRE) that is thought best for implementing the IEP. Parents must be involved in the special education process. Approximately 14 percent of public school students were identified for special education in 2004–2005, but the number and percentage of students identified in most high-incidence categories as needing special education have declined in recent years (the total for all categories was about 8.5 percent of public school students in 2010). A variety of evidence-based interventions can be used to address the wide range of instructional and behavioral needs of students with disabilities and their families, including transition to further education or work, family services, and teacher education. Special education in the USA may find new sources of support and thrive or may become less common or be abandoned entirely due to criticism and withdrawal of support for social welfare programs of government.