Temporal Passage

This article explains that time flow is a subjective, mind-dependent phenomenon. The paper describes the nature of the subjective "present" of consciousness, and defines the mechanism that brings about this present's motion from past to future. The first section of the article demonstrates that existence is a dynamic process and shows that time arises from this process. The second section presents a geometric analysis of the present's motion. The third section contrasts space with time. In the last section, consciousness and time are discussed within the context of Einstein's theory of relativity

Transforming Christian Schools Using Sustainable Model of Organizational Change and Performance Improvement

Organizational failure in Christian schools is a common phenomenon affecting millions of families in the United States. In the past 2 decades alone, more than 200 Christian schools closed each year; and many continued to struggle for survival. This trend presented significant challenge for the sustainability of faith-based schools that serve over 10% of grade-level students in the country. The purpose of this study was to examine internal and external factors impacting the performance of Christian schools and analyze existing theories of institutional effectiveness leading to the development of a sustainable framework. The research question addressed what type of organizational change and performance improvement model is suitable for Christian schools. A total of 32 participants from 5 schools with roles varying from students, alumni, parents, teachers, administrators, board members, and industry experts were interviewed using purposeful sampling method based on their demonstrated leadership capacities. Grounded theory was used for data analysis in categorizing responses using keywords, and synthesizing functional themes that lead to generate the theoretical framework. The result of the study was manifested as The CONCORD Model, featuring an integration of the core attributes of efficacy including academic excellence, visionary leadership, streamlined business processes, socio-cultural diversity, dynamic resource development, and community outreach and networking initiatives. The outcome of the study fills a void in existing literature by presenting a sustainable model for organizational leadership, strategic management, and efficient operations for Christian schools. The model can also be extended to serve transformational initiatives in related nonprofit institutions to impart positive social change and a brighter future for communities that value faith-based education and service for the common good

Exploring Adaptation-Based Techniques to Create Comfortable Virtual Reality Experiences

Virtual reality (VR) is transitioning from research to widespread consumer use. However, VR sickness - a type of motion sickness associated with VR usage - is believed to be a major impediment to the mass adoption of VR and it is estimatedto affect more than two-thirds of VR users. Previous research also shows that VR sickness affects some vulnerable groups, such as women, more severely than other groups. Although several strategies have been developed to mitigate VR sickness, most of them are not equally effective for all users since the effectiveness of any particular strategy varies across individuals. There are also concerns that some widely used VR sickness mitigation strategies, such as field-of-view (FOV) restriction, may have negative consequences on women. This thesis aims: 1) to provide theoretical understanding of the aspects of VR systems that cause VR sickness to affect some user more than others, with focus on sex differences, and 2) to develop adaptation-based strategies that could mitigate VR sickness for all VR users irrespective of their differences.Towards these goals, I first investigate the effectiveness of FOV restriction in reducing VR sickness across genders, and it’s effects on women’s spatial navigation ability. Then, based on findings from the first set of studies, I develop andempirically evaluate a novel adaptive eye gaze-contingent FOV restrictor that allows users to have a wider visual field while blocking their peripheral FOV. The wider visual field would be beneficial for women’s spatial navigation performance in virtual environments. Finally, I provide a novel standardized adaptation-based training paradigm that supplements existing VR sickness mitigation techniques by allowing the user to best prepare themselves for continued VR use. Evaluation of this strategy suggests that it could reduce and even eliminate VR sickness in susceptible individuals irrespective of their individual differences

Flood Hazard and Flood Risk Vulnerability Mapping Using Geo-Spatial and MCDA around Adigrat, Tigray Region, Northern Ethiopia

In Ethiopia, urban floods incidents are becoming a serious problem in recent years. They are mainly associated with poorly designed urban drainage system and land use planning. Combined to it, lack of early warning system and organized flood disaster mitigation measures at national and local level further increases the gravity of the problem. Adigrat is one of the north Ethiopian towns which is frequently attacked by these floods. To understand and address the issue, a study was conducted around Adigrat town with the aim to spatially delineate the flood hazard and risk with the help of geo-spatial and multi-criteria decision analysis (MCDA) tools. Baseline maps were developed using Landsat satellite images, DEM, aerial photographs, rainfall data and census population data. Different variables like slope, elevation, rainfall, water table, flow direction and flow accumulation, LULC, population density, building density and road density were considered for developing a model. After the data is collected and organized, Erdas Imagine and ArcGIS software were used to process and prepare the model, and finally weighted overlay model was adopted to stimulate the prototype. Each baseline maps was weighted against its impact since all factors have no the same importance. Accordingly, slope, LULC, elevations; and population density, flood hazard and LULC were found the most important factors. The flood risk areas are delineated based on flood hazard, LULC, population density, road and building density. The results indicate that the Kebeles03, 04 and 05 (center of the town) with flat slopes, low altitudes, more population and significant amount of built up area are found to be the most vulnerable for flood hazard. On the other hand, the Kebeles 01, 02 and 06 lying southwest and west of the study area are least affected by flood due to steep topography and high altitudes. It is suggested that similar type of inter-disciplinary studies are essential to minimize the damages and assure sustainable urban development.Keywords: Geo-spatial; Flood hazard; Flood risk; Vulnerability mapping; Adigrat town; Ethiopia

Comparison of methods for determining unsaturated hydraulic conductivity in the wet range to evaluate the sensitivity of wetting front detectors

The design of passive lysimeters or wetting front detectors determines the tensions at which they collect a water sample from an unsaturated soil. When deployed in the field to help manage irrigation, it is necessary to know the minimum flux of water that can be sampled by a passive lysimeter and how this relates to the drainage flux at field capacity. This requires a good estimate of the unsaturated hydraulic conductivity characteristic, K(h), in the wet range (< 10 kPa). We compared various field, laboratory and theoretical approaches for obtaining the K(h) function and compared these to a reference K(h) function derived by applying inverse modelling approaches to field drainage experimental data. The Van Genuchten model and three of the pedotransfer models produced K(h) functions with a root mean square error of less than 5% compared to the reference, and appear to be simple methods of obtaining a reasonable estimate of unsaturated hydraulic conductivity. However, despite the goodness of fit, there can be a 10-fold difference in conductivity at a given tension < 10 kPa estimated from the different methods. Moreover, water content at field capacity depends entirely on whether field capacity is defined as time elapsed after saturation, a set tension or a minimum flux.Keywords: inverse modelling, instantaneous profile method, pedotransfer functions, wetting front detector, field capacity, HYDRUS-2

Community-based malaria control programme in Tigray Region, Northern Ethiopia: Results of a mortality survey of rural under-five children

Abstract: A mortality survey of children under five years of age was undertaken in Tigray Region, in rural areas covered by a community-based malaria control programme. A multistage cluster sampling technique was used to define the sample. Trained Malaria Control Programme personnel conducted interviews in 4660 households. Total under-five population sampled was 7335, in which 190 deaths were reported in one year. Median duration of illness before death was 14 days, mean age at death 1.5 years, and 53% of those who died were male. Forty five percent died without being taken to a Community Health Worker (CHW) or to a health facility before death, and 92% of the deaths occurred at home. Overall, 12% of deaths were reported by families due to fever or malaria. Death rate (age 0-4) was 25.9%. Estimated age specific mortality rate (age 0-4) was 26.3%, underfive mortality rate (U5MR) was 163%, and malaria-specific mortality rate based on lay reporting was 3.3%. Two districts were found to have very high mortality with estimated U5MRs of 372% and 290%. Based on these findings, increased efforts are being made in the Community-Based Malaria Control Programme to educate families about the importance of early diagnosis and treatment and the use of CHW services for ill children. Areas for investigating the determinants of the marked district mortality differentials are discussed. [Ethiop. J. Health Dev. 1998;12(3):203-211

Exploring healthcare systems design research and practice: Outcomes of an international meeting

AbstractCurrent healthcare delivery challenges are multi-faceted, requiring multiple perspectives to be addressed using a systems approach. However, a significant amount of healthcare systems design research work is carried out within single disciplines or at best a few disciplines working together. There appears to be little deliberate attempt to draw together a wide range of disciplines committed to working together to overcome differences and tackle some of the complex challenges in healthcare delivery. In this paper, we report on the initial outcomes of such an international initiative that, in the form of a workshop held at the University of Cambridge, brought together researchers and practitioners from a wide range of disciplines to explore the foundations of a community for Healthcare Systems Design Research and Practice.</jats:p

ለኦርቶዶክስ ጋብቻ መመሪያ - የቅዱስ ዮሐንስ አፈወርቅ ሰባት ስብከቶች ስለ ወንድ እና ሴት፡ የትዳር ሕይወትና የትዳር ላይ ጥቃት

This essay is adapted from the paper entitled “Beyond a feminist ‘hermeneutics of suspicion’: Reading St John Chrysostom’s commentaries on man-woman relations, marriage and conjugal abuse through the Orthodox phronema” authored by Dr Istratii (published by The SOAS Journal of Postgraduate Research (SJPR) here). The adapted version was translated by Mr. Gebrselassie and Mr. Abhanom together with Dr. Istratii, who mediated translation from the original Greek to Amharic. The aim of the essay has been to make the original Greek homilies of John Chrysostom accessible to the Ethiopian Orthodox community, as opposed to relying on English translations which may not be informed by the lived Orthodox phronema. While St John Chrysostom is an undisputed authority of theological matters within the EOTC, his commentaries on apostolic teachings on marriage have received considerably less attention compared to his other works on Church dogmatics. It is hoped that increasing knowledge of his teachings can contribute toward addressing gender-related issues and domestic violence in the Orthodox community of Ethiopia

Species, Risk Factors, and Antimicrobial Susceptibility Profiles of Bacterial Isolates from HIV-Infected Patients Suspected to Have Pneumonia in Mekelle Zone, Tigray, Northern Ethiopia

Data Availability Data supporting the conclusions of this article are available by request from G. Adhanom. The relevant raw data will be made available to researchers wishing to use them for noncommercial purposes. Acknowledgments The authors would like to acknowledge Mekelle University for financing and allowing the laboratory space and materials to conduct the laboratory work. All ART clinics of Mekelle zone and all study participants are acknowledged for their willingness to participate in this study. This work was supported by Mekelle University, College of Health Sciences, Postgraduate Students Research fund.Peer reviewedPublisher PD