Showing papers by "University of Wisconsin–Eau Claire published in 1982"

Public Consensus on Crime Seriousness Normative Structure or Methodological Artifact

Abstract: Research on public perceptions of crime seriousness is reviewed. Two explanations for subgroup consensus are advanced as alternatives to the dominant view that ratings of crime seriousness reflect an underlying normative structure. It is argued that a normative explanation is plausible only after dismissing these alternative explanations. Research and data analytic strategies are proposed to evaluate the plausibility of these alternative explanations and suggestions are offered for future research in crim seriousness and the measurement of normative phenomena.

Coping with Disillusionment, Abstract Images, and Uncertainty in Career Decision Making

Abstract: The author examines sources of disillusionment and uncertainty in college students' career thinking.

Synthesis, X-ray crystallographic determination, and opioid activity of erythro-5-methylmethadone enantiomers. Evidence which suggests that mu and delta opioid receptors possess different stereochemical requirements.

Abstract: Enantiomers of erythro-5-methylmethadone (3) were synthesized from optical antipodes of erythro-3-(dimethyl-amino)-2-butanol. X-ray crystallographic analysis of (-)-3 perchlorate revealed that it possesses the 5S,6S absolute configuration. It was found that (-)-3 is substantially more potent than its enantiomer (+)-3 as an opioid agonist in vivo and in vitro. In vitro tests (guinea pig ileal longitudinal muscle and mouse vas deferens preparations) suggest that (-)-3 mediates its effect chiefly through mu opioid receptors. On the other hand, (+)-3 and the more potent enantiomers of methadone, (-)-1, and isomethadone, (-)-2, appear to have less mu-receptor selectivity and interact with a greater fraction of delta receptors than does (-)-3. The fact that the solid-state conformation of (-)-3 differs from that of (-)-1 and (-)-2, which show great similarity in conformational features, suggests that mu and delta receptors have different conformational requirements. The possibility of different modes of interaction with a single opioid receptor population also is discussed.

Floral ontogeny in cyclamen persicum ‘f-1 rosemunde rose’ (primulaceae)

Abstract: Floral ontogeny was examined in Cyclamen persicum 'F-1 Rosemunde Rose' using a combination of light and scanning electron microscopy. The leaf plastochron index (LPI), earlier calculated for leaf elongation, was used to determine the length of each stage of floral development. LPI will provide a useful tool for selecting flowers of a given stage from large plant populations or from plants where flowers are small or inaccessible during early ontogenetic stages. Most features of floral development are similar to those previously described for other primulaceous genera. The petal-stamen relationship, however, is unusual; stamens arise through periclinal cell divisions in the adaxial surface layers of common petal-stamen primordia. Anatomical evidence suggests that the placenta is formed both by appendicular initials which give rise to the ovules and ventral carpellary bundles, and receptacular cells which form some, if not all- of the central axis. FLORAL ONTOGENY in the Primulaceae is of interest particularly because of the atypical petal-stamen relationship and because of the free-central placenta. In this family the stamens have been described as being initiated prior to the petals with the latter organs arising from the abaxial surface of the former. This relationship was first described by Duchartre (1844) and confirmed by Gressner (1874) in

Structure and origin of the eggshell ofQuinqueserialis quinqueserialis (Trematoda: Notocotylidae)

Abstract: Ultrastructural studies were conducted on the eggshell and portions of the female reproductive system of the notocotylid trematodeQuinqueserialis quinqueserialis (Barker and Laughlin 1911). The eggshell consists of long bipolar filaments extending from an ovoid egg capsule. The egg capsule, formed within the ootype, is composed of an inner electron-dense layer of vitelline origin and an outer membranous layer containing many shallow pits derived from membranous secretions of the Mehlis' gland. Filaments are formed at the level of the fourth uterine loop from electron-dense secretions produced within the uterine epithelium. Filament elongation continues as eggs pass through the remaining uterine loops.

Site-specific instability in drosophila melanogaster: evidence for transposition of destabilizing element

Abstract: In this study, we show that at least one lethal mutation at the 3F–4A region of the X chromosome can generate an array of chromosome rearrangements, all with one chromosome break in the 3F–4A region. The mutation at 3F–4A (secondary mutation) was detected in an X chromosome carrying a reverse mutation of an unstable lethal mutation, which was mapped in the 6F1–2 doublet (primary mutation). The primary lethal mutation at 6F1–2 had occurred in an unstable chromosome (Uc) described previously (Lim 1979). Prior to reversion, the 6F1–2 mutation had generated an array of chromosome rearrangements, all having one break in the 6F1–2 doublet (Lim 1979, 1980). In the X chromosomes carrying the 3F–4A secondary lethal mutation the 6F1–2 doublet was normal and stable, as was the 3F–4A region in the X chromosome carrying the primary lethal mutation. The disappearance of the instability having a set of genetic properties at one region (6F1–2) accompanied by its appearance elsewhere in the chromosome (3F–4A) implies that a transposition of the destabilizing element took place. The mutant at 3F–4A and other secondary mutants exhibited all but one reinversion of an inversion to the normal sequence) of the eight properties of the primary lethal mutations. These observations support the view that a transposable destabilizing element is responsible for the hypermutability observed in the unstable chromosome and its derivaties.

Host-parasite interface of the flukeCollyriclum faba (Bremser in Schmalz, 1831) as revealed by light and electron microscopy

Abstract: Light and electron microscopy ofCollyriclum faba reveals that the dorsal tegument is highly convoluted, containing regular groups of between one and five spines. The thinner ventral covering has a less spiny surface with shallow infoldings. The lining of the capsule is characterized by numerous layers of collagen reflecting a strong cellular response by the host.

Volunteer Training for Non-Bureaucratic Agencies: Utilizing Social Work Roles To Increase Volunteer Skills

Abstract: Volunteers are frequently sought by human service agencies to meet the needs created by chronic understaffing and funding problems. As an example, fifteen volunteers working six hours a week for six months will contribute 2340 hours to an agency. However, developing an effective program that allows for coordination of volunteer duties and staff responsibilities may be difficult to achieve. Shortages of staff time, lack of clear direction, and bureaucratic limitations all can produce a situation in which volunteers are not efficiently utilized as

The Development and Application of an Instructional Materials Evaluation System: Preacademic Level.

Abstract: An instructional materials model was constructed and employed as a perspective for a review of the literature. A need for an indirect evaluation technique for consumers at the post production level...