Probing Contact Interactions at High Energy Lepton Colliders

Fermion compositeness and other new physics can be signalled by the presence of a strong four-fermion contact interaction. Here we present a study of $\ell\ell qq$ and $\ell\ell\ell'\ell'$ contact interactions using the reactions: $\ell^+ \ell^- \to \ell'^+\ell'^-,b\bar b, c\bar c$ at future $e^+e^-$ linear colliders with $\sqrt s=0.5-5$ TeV and $\mu^+\mu^-$ colliders with $\sqrt s=0.5,4$ TeV. We find that very large compositeness scales can be probed at these machines and that the use of polarized beams can unravel their underlying helicity structure.Comment: 12 pg, to appear in the {\it Proceedings of the 1996 DPF/DPB Summer Study on New Directions for High Energy Physics - Snowmass96}, Snowmass, CO, 25 June - 12 July, 199

Decay properties of new D-mesons

We consider radiative and pionic decays of the new D_s-mesons in the framework of a phenomenologically motivated approach. Present data on ratios of the two kinds of decays can be described without explicit using a 4-quark component. Most probably, the isospin violation in decays of different D_s-mesons is not universal, and the binding potential should be different from Coulombic. New precise measurements may provide further clarification for the nature of the D_s excited states.Comment: 12 pages, Late

Towards an Analytical Framework for Assessing Property Rights to Natural Resources: A Case Study in the Communal Areas of Zimbabwe

A taxonomy for describing property rights to natural resources is described and applied in a Zimbabwean case study. The taxonomy allows: tenures to be systematically compared and contrasted; incentives for natural resource management to be identified; and the evolution of tenure to natural resources to be assessed. In the case study, we find: key differences between tenure types, all termed "communal"; a wide range of tenure arrangements that transcend concepts of "tree" and "land tenure"; information suggesting that the promotion of tree planting may work on some tenure types, but is likely to fail on others; and that the evolution of indigenous tenure to natural resources seems to have been somewhat immune from external changes in institutional systems. Prospects for further theoretical and empirical advances are discussed within the context of the property rights framework presented.incentives, natural resources, property rights framework/taxonomy, tenure, Zimbabwe, Resource /Energy Economics and Policy,

Comment on Z′Z''s and the H1 and ZEUS High Q2Q^2 Anomalies

We investigate the effects of extra neutral gauge bosons on the high $Q^2$ region of the $e^+p \to e^+ X$ cross section at $\sqrt{s}=300$ GeV. We found that the only models with electroweak strength coupling, typical of extended gauge theories, that give a better fit to the H1 and ZEUS high $Q^2$ data than the standard model, are ruled out by existing data from the Tevatron. From general scaling arguments, using the allowed contact interactions, the only allowed models with $Z'$'s would be those with strong couplings although even in this case the statistical evidence is not compelling.Comment: Latex file uses revtex version 3, epsfig, 1 postscript figure is attache

Motherhood in the therapy room. An interpretative phenomenological analysis of the experience of mother-therapists who work with mothers who grieve for their child

The aim of this study was to gain insight into the lived experience of mother-therapists’ (therapists who are also active mothers) therapeutic work with mothers whose child had died. Through this exploration an awareness of how motherhood can shape the therapeutic encounter when working with this client group was created. The study furthermore considered how the work shaped participants’ personal and clinical selves. Interpretative Phenomenological Analysis with its inductive, idiographic and interpretative stance was considered appropriate for this study. Six mother-therapists were interviewed twice on their experiences of working with mothers who grieved for their child. Due to high in-sample variation, two participants’ accounts were not included in the data analysis in order to achieve greater homogeneity. The remaining four participants were mother-therapists of different therapeutic orientations either qualified and registered with BACP/UKCP/BPS or training towards such registration. They were also mothers of live-children up to the age of 16. Analysis of their interviews led to the creation of four superordinate themes: (1) The personal in the professional; (2) Sitting with the grieving mother; (3) The double-edged sword of identification; (4) How this work has shaped me; The findings indicate that the mother-therapists in this study considered their role as mother to be influential to their overall identity as well as their work as therapists. Being a mother shaped their work directly and practically, i.e., the hours worked; and indirectly, i.e., empathising with parent-issues through an experiential lens shaped by their own experiences as mothers. Working with grieving mothers was found to be challenging at times, due to identification with clients and similarities between children. Nevertheless, mother-therapists in this study also felt that being a mother helped empathic attunement, aided connection and working at relational depth. Supervision and self-care were deemed important when working with bereaved mothers. The findings of this research are intended to support other clinicians who work with child-death. It furthermore contributes to the literature on ‘bereavement work’ and ‘the person of the therapist’ as it highlights the reciprocal nature of the therapist and their work

Irregularity in the High Court: Appeal or Review?

A RLJ article on irregularities in the High Courts of South Africa, circa. 1970's.The difference between appeal and review is familiar to Southern African lawyers: appeal challenges the correctness! of the decision and is based on what appears in the record; review challenges the regularity of the proceedings and may be based on matter not appearing in the record but introduced by affidavit. Since the High Court Act, 1964, appeals from magistrates' courts and from the General Division have been heard by the Appellate Division, while the review of proceedings in magistrates’ courts has been a matter for the General Division. This is clear enough, but what if an irregularity occurs in the General Division? There is no clear answer to this question, and the author argues that a clear statutory answer is desirable but in the meantime it would not be improper for the Appellate Division to exercise review jurisdiction over the General Division if the need arose

Preschoolers\u27 Perceptions of Their Alternative Care Environments

The purpose of this study was to examine children\u27s perceptions of their alternative child care environment without constraining thought processes or suggesting appropriate answers. The Child Care Game Assessment (CCGA) was developed to meet these goals. The CCGA is a role-plating, game-like assessment for preschool children. It uses a model of the child\u27s alternative care environment and allows children to act out portions of a typical day. The CCGA was administered to 57 four- and five-year-old children attending non-parental child care. Twenty-one children (11 boys and 10 girls) attended Utah State University\u27s Child Development Laboratory, a 10-hour-per-week preschool. Twenty-one children (10 boys and 11 girls) participated in a full day child care centers, and fifteen children (12 boys and 3 girls) attended state-licensed, full-day home care settings. The CCGA provided a factor score that reflected each child\u27s perceptions regarding several areas of child care. These factors yielded a contentment score that measured how children liked attending their alternative child care environment. Results suggested that children generally liked attending alternative child care. They viewed care providers as an important element contributing to their contentment. Children are the primary consumers of alternative care and their perceptions concerning child care were imperative. They furnished convergent data regarding their preferences at child care and gave important information regarding child care practices. The CCGA appears to provide useful information regarding children\u27s perceptions of alternative child care. Parents and child care providers can use this information to provide children with better alternative environments by noting interactions and providing child-centered activities