Unveiling the Proton Spin Decomposition at a Future Electron-Ion Collider

We present a detailed assessment of how well a future Electron-Ion Collider could constrain helicity parton distributions in the nucleon and, therefore, unveil the role of the intrinsic spin of quarks and gluons in the proton's spin budget. Any remaining deficit in this decomposition will provide the best indirect constraint on the contribution due to the total orbital angular momenta of quarks and gluons. Specifically, all our studies are performed in the context of global QCD analyses based on realistic pseudo-data and in the light of the most recent data obtained from polarized proton-proton collisions at BNL-RHIC that have provided evidence for a significant gluon polarization in the accessible, albeit limited range of momentum fractions. We also present projections on what can be achieved on the gluon's helicity distribution by the end of BNL-RHIC operations. All estimates of current and projected uncertainties are performed with the robust Lagrange multiplier technique.Comment: 12 pages, 8 eps figure

Incidence of Obesity Among Mentally Retarded Children

An international survey of professionals in the field of mental retardation was conducted to determine significant research priorities in the education of students with mild retardation. A total of 67 individuals responded to survey which represented 83.7% of those contacted. Among the issues rated most highly were two clusters: vocational, career education and post-school adjustment and long term effects and generalization of effects of programs. Implications of the survey data are discussed and recommendations are provided

Helicity Parton Distributions at a Future Electron-Ion Collider: A Quantitative Appraisal

We present a quantitative assessment of the impact a future electron-ion collider will have on determinations of helicity quark and gluon densities and their contributions to the proton spin. Our results are obtained by performing a series of global QCD analyses at next-to-leading order accuracy based on realistic sets of pseudo-data for the inclusive and semi-inclusive deep-inelastic scattering of longitudinally polarized electrons and protons at different, conceivable center-of-mass system energies.Comment: 11 pages, 8 figure

The Impact of Face-to-Face Orientation on Online Retention: A Pilot Study

Student retention in online education is a concern for students, faculty and administration. Retention rates are 20% lower in online courses than in traditional face-to-face courses. As part of an integration and engagement strategy, a face-to-face orientation was added to an online undergraduate business information systems course to examine its impact on retention. The study methodology consisted of an early email contact, distribution of course documents, a follow-up phone call, and a pre-course face-to-face orientation. The retention rate of students who attended the orientation was over 91% with a p-value of 0.9143. The retention rate of students not attending the orientation was just under 18%. Findings suggest that face-to-face orientations impact retention positively

A Preparation Protocol for Postembedding Immunoelectron Microscopy of Dictyostelium discoideum Cells with Monoclonal Antibodies

On-section-labelling of Dictyostelium discoideum cells poses severe problems in retaining adequate morphology and antigenicity. Monoclonal antibodies are an essential tool in biochemistry and molecular biology because of their specificity and low. background staining. Unfortunately their advantage, the recognition of only one distinct epitope, is often a handicap for immunoelectron microscopy. Resin embedding and steric hindrance of the gold-tagged secondary antibodies further reduce the efficiency in detecting antigens making the localization of less abundant antigens difficult if not impossible. A successful preparation protocol should retain morphology and antigenicity, allow the antibodies easy access to the antigen and use a detection system which visualizes as many of the primary antibodies as possible. Fixation of Dictyostelium cells with buffered formaldehyde and picric acid, cryosectioning and the use of ultra-small gold conjugates enabled us to label most of the antigens under investigation

Course Revitalization As A Change Driver Throughout Undergraduate Business Curriculum

This paper describes the revitalization of Business Information Systems and Communication, a high enrollment, prerequisite course for all undergraduate business students in the Coles College of Business.  An overview of the course components is presented and original structure described. The rationale for change, technologies leveraged and measures of success are presented. The change drivers are identified and their impact on undergraduate curriculum delineated. Lessons learned and future implications are discussed