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Search Results: 1 - 10 of 117731 matches for " T Muche "
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Modeling and Simulation of Real Gas Flow in a Pipeline  [PDF]
Agegnehu Atena, Tilahun Muche
Journal of Applied Mathematics and Physics (JAMP) , 2016, DOI: 10.4236/jamp.2016.48175
Abstract: In this paper, a mathematical model that describes the flow of gas in a pipe is formulated. The model is simplified by making some assumptions. It is considered that the natural gas flowing in a long horizontal pipe, no heat source occurs inside the volume, transfer of heat due to heat conduction is dominated by heat exchange with the surrounding. The flow equations are coupled with equation of state. Different types of equations of state, ranging from the simple Ideal gas law to the more complex equation of state Benedict Webb Rubin Starling (BWRS), are considered. The flow equations are solved numerically using the Godunov scheme with Roe solver. Some numerical results are also presented.
Selection and application of a standard E-learning system in a teaching project for biometry at the University of Ulm
Muche, Rainer
GMS Medizinische Informatik, Biometrie und Epidemiologie , 2006,
Abstract: Based on the major revision of the regulation for the licence to practice medicine ( AppO) we adapted teaching in medical biometry. The so-called “teaching project Biometry” is intended to give basics of biometry to the students by using computer methods. For this purpose an E-Learning system is established and a statistical software is introduced. Methods of statistics are inducted using a real medical patient data set. First of all the new project is intended to increase the students’ motivation for the subsidiary subject of medical biometry, secondly to improve the sustainability for future medical research and for dissertation writing. This field report mainly describes the selection process and the applicability of an E-Learning system for medical biometry. Additionally first experiences and the evaluation of a first course conducted last year (summer term 2005) will be presented.
Buchbesprechung: Datenanalyse mit SAS
Muche, Rainer
GMS Medizinische Informatik, Biometrie und Epidemiologie , 2005,
Buchbesprechung: Statistical evidence in medical trials
Muche, Rainer
GMS Medizinische Informatik, Biometrie und Epidemiologie , 2007,
Buchbesprechung: Regression Methods in Biostatistics
Muche, Rainer
GMS Medizinische Informatik, Biometrie und Epidemiologie , 2007,
Buchbesprechung: Introduction to Statistical Methods for Clinical Trials
Muche, Rainer
GMS Medizinische Informatik, Biometrie und Epidemiologie , 2009,
O Arquipélago dos Abrolhos: Geomorfologia e Aspectos Gerais
Dieter Muche
Anuário do Instituto de Geociências , 1988,
Child labor and childhood behavioral and mental health problems in Ethiopia
AA Alem, A Zergaw, D Kebede, M Araya, M Desta, T Muche, D Chali, G Medhin
Ethiopian Journal of Health Development , 2006,
Abstract: Background: According to ILO estimates, at least 180 million children aged 5 to 14 years are currently engaged in fulltime work in the developing countries. However, very little information exists about childhood behavioral and mental disorders in Ethiopia. Objective: The objectives of this study are to estimate the prevalence and describe the nature of behavioral and mental health problems, as well as child abuse, nutritional problems, gross physical illness and injury among child laborers aged 8 to 15 years in Ethiopia. However, only the behavioral and mental health problems of the study population are examined here. Methods: A cross-sectional survey of children aged 8 to 15 years, and who were engaged in fulltime work in different formal and informal sectors non-laborers, was conducted in four major towns of Ethiopia. The screening instrument known as Reported Questionnaire on Children (RQC) and a diagnostic instrument known as the Diagnostic Interview for Children and Adolescents ( DICA) were used to detect symptoms and signs of behavioral and mental problems in the children. br> Results: A total of 2000 child laborers and 400 non-laborers were interviewed using RQC to screen for probable cases of behavioral and mental problems. Of these, 50% of the laborers and 42% of the non-laborers were males. The mean age of the laborers was 13.8 ±1.8 years while that of the non-laborers was 12.2 ±2.1 years. More females (76.8%) were found to have been engaged in domestic labor than males. The RQC interview screened 9.4% (n=226) of the children as probable cases of mental/ behavioral disorders, (14.0% non-laborers and 8.5% laborers). The second stage DICA interview gave an overall prevalence of 5.5% (4.9% in laborers and 8.8% in non-laborers). Conclusion: The prevalence of childhood behavioral and mental disorders in this study is within the range reported in previews studies conducted on children of the same age group. However, the lower prevalence of childhood disorders in the child laborers compared to that of the non-laborers found in the current study is probably due to selection bias or healthy workers effect. Thus, further study is recommended to explain this unexpected finding. The Ethiopian Journal of Health Development Vol. 20 (2) 2006: 119-126
Current Status of Antenatal Care Utilization in the Context of Data Conflict: The Case of Dembecha District, Northwest Ethiopia  [PDF]
Molla Gedefaw, Bilal Muche, Mekonen Aychiluhem
Open Journal of Epidemiology (OJEpi) , 2014, DOI: 10.4236/ojepi.2014.44027
Abstract: Good antenatal care (ANC) is one of the most important health care aspects known to reduce maternal mortality. In Ethiopia, regional and national data at times do not concur thus data from district to district level decision making are needed. The aim of this study was, therefore, to assess the prevalence and correlates of ANC service utilization. A community based cross-sectional study was conducted among pregnant women. Multistage sampling was used. Pre-tested structured questionnaire was data collection tool. Data were analyzed using SPSS version 16.0 for windows. Logistic regression was used to assess possible association among variables. Odds ratio at 95% confidence interval was used to measure strength, and statistical significance of associations. Prevalence of ANC service utilization was 57%. Of these, more than 80% of them received ANC for ≥4 times. This finding is more similar to the regional report (68%) than that of EDHS (2011) for Amhara Region (34%). Marital status, educational status and income were important predictors for ANC service utilization. The most outstanding finding of this study was that more than 20% and 60% of mothers received antennal care, and information about antenatal care from health extension workers. Antenatal care utilization is still low. Single, divorced, or separated mothers were less likely to utilize ANC while economically better off, and literate mothers were more likely to use ANC services than their counterparts. The finding of this study is in line with the annual reports from the Regional health bureau and disagrees with Ethiopian demographic health survey—EDHS-(2011). Therefore, districts should be encouraged to make decisions based on their own locally generated data than based on EDHS data which could at times be discouraging for districts with better performance. Further strengthening of Health Extension Program is recommended.
A cross sectional study: latrine coverage and associated factors among rural communities in the District of Bahir Dar Zuria, Ethiopia
Worku Awoke, Semahegn Muche
BMC Public Health , 2013, DOI: 10.1186/1471-2458-13-99
Abstract: A community-based cross-sectional study was conducted on 608 households in district of Bahir Dar Zuria . First, the district was stratified based on the distance from Bahir Dar city. Then, ten kebeles (the smallest administrative units) were selected from the 32 rural kebeles in the district. After the kebeles had been identified, the households were selected by systematic sampling method using existing list of all households as a sampling frame. Intervals (Kth)) for selecting households were determined by dividing the number of households with the sample size allocated for each kebele. After determining the Kth interval, the first household was selected randomly. The next households were identified systematically onwards by adding cumulatively Kth intervals to the first selected household .Data were collected by means of a pretested, standardized questionnaire and observation checklist. Data analysis was carried out using SPSS version 16.Of the 608 households, 355 (58.4%) had pit latrines and only 220 (62.0%) were functional (providing services during data collection). One hundred eighty seven (52.7%) had been constructed two or more years prior to the time of the study and 202 (56.9%) latrines required maintenance. The availability of latrines was twice higher in households with an income of 5000 or more Ethiopian Birr (1USD = 17.5 Ethiopian Birr) per year (adjusted odds ratio [AOR], 1.55; 95% confidence interval [CI], 1.06--2.27) than those who hand an income less than 5000 Birr per year; the availability of latrines was twofold higher in households visited by health professional at least three times a month (AOR, 2.29; 95% CI, 1.33--3.93) than those that received no visits. The latrine coverage was about two times higher in households that were less than 30 minutes walk from a health institution (AOR, 1.57; 95% CI, 1.11--2.22) than households that were over 30 minutes walk. The latrine coverage was lower in households located in distant areas (AOR, 0.53; 95% CI,
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