The human value of scientific investigations of the origin and evolution of the solar system

The value of space exploration in relation to such earth bound problems as poverty, hunger, overpopulation, pollution, disease, and urban blight is discussed

Happier Teachers and More Engaged Students? Reflections on the Possibilities Offered by a Pedagogical Approach Co-Developed by Teachers and Researchers

In every edition of Research in Teacher Education we publish a contribution from a guest writer who has links with the Cass School of Education and Communities. In this month’s edition of RiTE our guest writer is Professor Louise Archer, recently appointed to the Karl Mannheim Chair of Sociology of Education, based in the Department of Education, Practice and Society at UCL’s Institute of Education. Professor Archer’s primary research interests have been in identities and inequalities of ‘race’, gender and social class within compulsory and post-compulsory education. Her work encompasses research on Muslim pupils, the minority ethnic middle classes, British Chinese pupils, urban young people and schooling, widening participation in higher education and inequalities in science participation. She also has an interest in feminist theory and methodology. Currently, she is the Principal Investigator for the ASPIRES project, a ten year ESRC-funded study of children’s science aspirations and career choices and is the Director of the five year Enterprising Science project. Previously, she was lead coordinator of the ESRC’s four-year research programme, the Targeted Initiative on Science and Mathematics Education. She is a member of the editorial boards of Journal of Education Policy, Qualitative Research in Psychology, and Journal of Research in Science Teaching and is the Vice President (Education) at the British Science Association

Happier Teachers & More Engaged Students? Reflections on the Possibilities Offered by a Pedagogical Approach Co-Developed by Teachers & Researchers

Vol. 7. No. 1 May 2017 In this month's edition of RiTE our guest writer is Professor Louise Archer, recently appointed to the Karl Mannheim Chair of Sociology of Education, based in the Department of Education, Practice and Society at UCL's Institute of Education. Professor Archer’s primary research interests have been in identities and inequalities of 'race', gender and social class within compulsory and post-compulsory education. Her work encompasses research on Muslim pupils, the minority ethnic middle classes, British Chinese pupils, urban young people and schooling, widening participation in higher education and inequalities in science participation. She also has an interest in feminist theory and methodology. Currently, she is the Principal Investigator for the ASPIRES project, a ten year ESRC-funded study of children's science aspirations and career choices and is the Director of the five year Enterprising Science project. Previously, she was lead coordinator of the ESRC's four-year research programme, the Targeted Initiative on Science and Mathematics Education. She is a member of the editorial boards of Journal of Education Policy, Qualitative Research in Psychology, and Journal of Research in Science Teaching and is the Vice President (Education)

User community development for the space transportation system/Skylab

The New User Function plan for identifying beneficial uses of space is described. Critical issues such as funding, manpower, and protection of user proprietary rights are discussed along with common barriers which impede the development of a user community. Studies for developing methodologies of identifying new users and uses of the space transportation system are included

Involutions and the Gelfand character

The Gelfand representation of $\mathcal{S}_n$ is the multiplicity-free direct sum of the irreducible representations of $\mathcal{S}_n$. In this paper, we use a result of Adin, Postnikov, and Roichman to find a recursive generating function for the Gelfand character. In order to find this generating function, we investigate descents of so-called $\lambda$-unimodal involutions

Change in Working Length at Different Stages of Instrumentation as a Function of Canal Curvature

The aim of this study was to determine the change in working length (∆WL) before and after coronal flaring and after complete rotary instrumentation as a function of canal curvature. One mesiobuccal or mesiolingual canal from each of 43 extracted molars had coronal standardization and access performed. Once the access was completed, canal preparation was accomplished using Gates Glidden drills for coronal flaring and EndoSequence files for rotary instrumentation. WLs were obtained at 3 time points: pre-instrumentation (unflared), mid-instrumentation (flared) and post-instrumentation (concluded). Measurements were made via direct visualization (DV) and the CanalPro apex locator (EM) in triplicate by a single operator with blinding within the time points. Root curvature was measured using Schneider’s technique. The change in working length was assessed using repeated-measures ANCOVA. The direct visualization measurements were statistically larger than the electronic measurements (paired t-test difference = 0.20 mm, SE = 0.037, P \u3c .0001), although a difference this large may not be clinically important. Overall, a greater change in working length was observed in straight canals than in curved canals, and this trend was more pronounced when measured electronically than via direct visualization, especially in the unflared-concluded time points compared with unflared-flared time points. A greater change in working length was also observed in longer canals than in shorter canals.https://scholarscompass.vcu.edu/gradposters/1032/thumbnail.jp

Soft core fluid in a quenched matrix of soft core particles: A mobile mixture in a model gel

We present a density-functional study of a binary phase-separating mixture of soft core particles immersed in a random matrix of quenched soft core particles of larger size. This is a model for a binary polymer mixture immersed in a crosslinked rigid polymer network. Using the replica `trick' for quenched-annealed mixtures we derive an explicit density functional theory that treats the quenched species on the level of its one-body density distribution. The relation to a set of effective external potentials acting on the annealed components is discussed. We relate matrix-induced condensation in bulk to the behaviour of the mixture around a single large particle. The interfacial properties of the binary mixture at a surface of the quenched matrix display a rich interplay between capillary condensation inside the bulk matrix and wetting phenomena at the matrix surface.Comment: 20 pages, 5 figures. Accepted for Phys. Rev.

Development of methodologies and procedures for identifying STS users and uses

A study was conducted to identify new uses and users of the new Space Transporation System (STS) within the domestic government sector. The study develops a series of analytical techniques and well-defined functions structured as an integrated planning process to assure efficient and meaningful use of the STS. The purpose of the study is to provide NASA with the following functions: (1) to realize efficient and economic use of the STS and other NASA capabilities, (2) to identify new users and uses of the STS, (3) to contribute to organized planning activities for both current and future programs, and (4) to air in analyzing uses of NASA's overall capabilities