Physical optics analysis of a four-reflector antenna, part 1

Concern has been raised for the 64-m to 70-m antenna upgrade project that the 70-m system may experience greater S-band beam-pointing perturbations than the 64-m system. The S-band perturbations are due to minor (higher order) mode generation, causing subtle cross-polarization fields affecting beam pointing direction, as described herein. For the antennas in their present configuration (64 m), a slight S-band gain degradation of about 0.05 dB can be attributed to these effects. Therefore, a full physical optics analysis was performed for the present-day 64-m system, as described herein. The results were compared with past analyses and experimental observations in order to verify the algebra and computer code with the intent of deriving a valid analysis method for accurately analyzing the 70-m shaped dual reflector Cassegrainian antenna. The results of the new analysis appear to be in excellent agreement with previous analyses and experimental data

Nursing now und Cha Cha Cha

Das Pflege- und Hebammennetz "Florence Network" knüpft an die "Nursing now" Kampagne zur Stärkung des Pflegeberufs

2019 CHA Elections Results / Résultats de l’élection 2019 de la SHC

Again this year, CHA members could choose from a list of well-qualified candidates for the elections. The CHA is proud to introduce its newest Council and Nominating Committee members as well as its student representative.Encore une fois cette année, les membres de la SHC ont pu choisir parmi une liste de candidats très compétents pour l’élection. La SHC est heureuse de présenter ses plus récents membres du conseil d’administration et du comité de mises en candidature ainsi que sa représentante étudiante

Evaluation of chemical compounds for induction of male sterility in wheat (Triticum aestivum L.)

The short-list of eleven chemical hybridizing agents (CHAs) showing 98% or more induction of male sterility were identified following application at the pre-meiotic stage of wheat. Among ethyl oxanilates, 4-fluoro (CHA A1), 4-bromo (CHA A2), 4-trifluoromethyl (CHA A5), and 4-cyano (CHA A3) derivatives; and among pyridones, 4-chloro (CHA B3), 4-fluoro (CHA B1), 4-bromo (CHA B2), and 4-trifluoromethyl (CHA B6) derivatives were the most promising. These agents showed no adverse effects on plant growth and yield. Ethyl 4-fluoro oxanilate (CHA A1) was tested on 29 wheat genotypes at 1500 ppm and induced 99.76±0.37% male sterility. Ethyl 4-fluoro oxanilate residues were non-detectable in grain and husk and thus appeared to have no lasting residue effects

Transient determination of the thermal conductivity of a low density phenolic nylon char Final report

Transient thermoconductivity determinations on low density phenol nylon cha

Motor Abilities in Dance Structure Performance in Female Students

The aim of the study was to analyze the relation between motor abilities and performance in folk dances originating from the island of Hvar and modern social dances. Two groups of variables were used in a sample of 78 female students of the Teacher Training College from Split: 7 motor variables as a battery of predictors, and performance evaluation of 4 dances (2 folk dances, i.e. ciciliona and pašavijen, and 2 social dances, i.e. cha-cha-cha and rock-\u27n\u27-roll) as criterion variables. Canonical correlation analysis between the groups of variables yielded two canonical correlations of 0.94 and 0.73, with a level of significance of p<0.001. The first canonical correlation was based on marked determination of coordination and ciciliona dance, and the second one on explosive strength of the running type with below-average coordination and the cha-cha-cha, rock-\u27n\u27-roll and pašavijen dances. Regression analysis indicated the battery of motor variables used to be a good predictor of performance in all study dances, with multiple correlation of 0.93 in ciciliona, 0.84 in pašavijen, 0.75 in rock-\u27n\u27-roll and 0.73 in cha-cha-cha. In ciciliona and pašavijen, the latent dance structure is predominantly explained by coordination, in rock-\u27n\u27-roll by explosive strength, and in cha-cha-cha by explosive strength and speed. Discriminative analysis revealed the general dance performance to mostly depend on coordination, then on explosive strength, and to a lesser extent on speed (movement frequency). Dance is an irreplaceable educational tool in kinesiologic education of female students, among others for its considerable contribution to the development and maintenance of basic motor abilities

Spatial and multidimensional visualization of Indonesia's village health statistics

Background: A community health assessment (CHA) is used to identify and address health issues in a given population. Effective CHA requires timely and comprehensive information from a wide variety of sources, such as: socio-economic data, disease surveillance, healthcare utilization, environmental data, and health resource allocation. Indonesia is a developing country with 235 million inhabitants over 13,000 islands. There are significant barriers to conducting CHA in developing countries like Indonesia, such as the high cost of computing resources and the lack of computing skills necessary to support such an assessment. At the University of Pittsburgh, we have developed the Spatial OLAP (On-Line Analytical Processing) Visualization and Analysis Tool (SOVAT) for performing CHA. SOVAT combines Geographic Information System (GIS) technology along with an advanced multidimensional data warehouse structure to facilitate analysis of large, disparate health, environmental, population, and spatial data. The objective of this paper is to demonstrate the potential of SOVAT for facilitating CHA among developing countries by using health, population, healthcare resources, and spatial data from Indonesia for use in two CHA cases studies. Results: Bureau of Statistics administered data sets from the Indonesian Census, and the Indonesian village statistics, were used in the case studies. The data consisted of: healthcare resources (number of healthcare professionals and facilities), population (census), morbidity and mortality, and spatial (GIS-formatted) information. The data was formatted, combined, and populated into SOVAT for CHA use. Case study 1 involves the distribution of healthcare professionals in Indonesia, while case study 2 involves malaria mortality. Screen shots are shown for both cases. The results for the CHA were retrieved in seconds and presented through the geospatial and numerical SOVAT interface. Conclusion: The case studies show the potential of spatial and multidimensional analysis using SOVAT for community health assessment in developing countries. Since SOVAT is based primarily on open-source components and can be deployed using small personal computers, it is cost-effective for developing countries. Also, combining the strength in analysis and the ease of use makes tools like SOVAT ideal for healthcare professionals without extensive computer skills. © 2008 Parmanto et al; licensee BioMed Central Ltd

Motor Abilities in Dance Structure Performance in Female Students

The aim of the study was to analyze the relation between motor abilities and performance in folk dances originating from the island of Hvar and modern social dances. Two groups of variables were used in a sample of 78 female students of the Teacher Training College from Split: 7 motor variables as a battery of predictors, and performance evaluation of 4 dances (2 folk dances, i.e. ciciliona and pašavijen, and 2 social dances, i.e. cha-cha-cha and rock-\u27n\u27-roll) as criterion variables. Canonical correlation analysis between the groups of variables yielded two canonical correlations of 0.94 and 0.73, with a level of significance of p<0.001. The first canonical correlation was based on marked determination of coordination and ciciliona dance, and the second one on explosive strength of the running type with below-average coordination and the cha-cha-cha, rock-\u27n\u27-roll and pašavijen dances. Regression analysis indicated the battery of motor variables used to be a good predictor of performance in all study dances, with multiple correlation of 0.93 in ciciliona, 0.84 in pašavijen, 0.75 in rock-\u27n\u27-roll and 0.73 in cha-cha-cha. In ciciliona and pašavijen, the latent dance structure is predominantly explained by coordination, in rock-\u27n\u27-roll by explosive strength, and in cha-cha-cha by explosive strength and speed. Discriminative analysis revealed the general dance performance to mostly depend on coordination, then on explosive strength, and to a lesser extent on speed (movement frequency). Dance is an irreplaceable educational tool in kinesiologic education of female students, among others for its considerable contribution to the development and maintenance of basic motor abilities

A rose without thorns

The song Waridi lisilo miba (both lyrics and music) was composed in 1960 by Seif Selim, a member of the taarab club Akhwan Safaa and a great artist. It was performed by Hussein bin Ali and the orchestra of the Zanzibari Taarab’s National Group (Kikundi cha Taifa cha Taarab).The Verba Africana series publishes video recording of African verbal arts on CDRom's, DVD’s and the Internet. This series responds to the increasing need for new electronic tools that integrate the written and audio-visual materials for research, teaching and learning of African languages and oral literatures. The video recording of oral genres, such as poems, songs and tales, is integrated into the presentation of relevant aspects (language, form, content, performance, literary, social and historical context). The videos and the accompanying material (short information and full articles) allow researchers and the interested public to approach oral literary productions as ‘total event’.NWO, The Netherlands Organisation for Scientific Researc