Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Search Results: 1 - 10 of 45 matches for " Anteneh Amsalu "
All listed articles are free for downloading (OA Articles)
Page 1 /45
Display every page Item
Seroprevalence of HIV, HBV, HCV and syphilis infections among blood donors at Gondar University Teaching Hospital, Northwest Ethiopia: declining trends over a period of five years
Belay Tessema, Gizachew Yismaw, Afework Kassu, Anteneh Amsalu, Andargachew Mulu, Frank Emmrich, Ulrich Sack
BMC Infectious Diseases , 2010, DOI: 10.1186/1471-2334-10-111
Abstract: A retrospective analysis of consecutive blood donors' records covering the period between January 2003 and December 2007 was conducted. Logistic regression analysis was used to determine risk factors associated with HIV, HBV, HCV and syphilis infections.From the total of 6361 consecutive blood donors, 607 (9.5%) had serological evidence of infection with at least one pathogen and 50 (0.8%) had multiple infections. The overall seroprevalence of HIV, HBV, HCV and syphilis was 3.8%, 4.7%, 0.7%, and 1.3% respectively. Among those with multiple infections, the most common combinations were HIV - syphilis 19 (38%) and HIV - HBV 17 (34%). The seropositivity of HIV was significantly increased among female blood donors, first time donors, housewives, merchants, soldiers, drivers and construction workers. Significantly increased HBV seropositivity was observed among farmers, first time donors and age groups of 26 - 35 and 36 - 45 years. Similarly, the seroprevalence of syphilis was significantly increased among daily labourers and construction workers. Statistically significant association was observed between syphilis and HIV infections, and HCV and HIV infections. Moreover, significantly declining trends of HIV, HCV and syphilis seropositivity were observed over the study period.A substantial percentage of the blood donors harbour HIV, HBV, HCV and syphilis infections. Strict selection of blood donors and comprehensive screening of donors' blood using standard methods are highly recommended to ensure the safety of blood for recipient.The discovery of transfusion-transmissible infections (TTIs) has heralded a new era in blood transfusion practice worldwide with emphasis on two fundamental objectives, safety and protection of human life [1]. Blood safety remains an issue of major concern in transfusion medicine in Ethiopia where national blood transfusion services and policies, appropriate infrastructure, trained personnel and financial resources are inadequate.Human immunode
The Challenge of Inclusion of Children with Physical Impairment: Absenteeism in Focus—A Case Study  [PDF]
Tadesse Abera Tedla, Sintayehu Mesfin Anteneh, Asfaw Woldekdan Nigus, Amsalu Tadie Gelaw, Mohammed Ahmed Mohammed, Ayenachew Beshay Tekle
Open Access Library Journal (OALib Journal) , 2015, DOI: 10.4236/oalib.1102009
Abstract: This study was undertaken to investigate those factors that were influencing as factors of absenteeism from school for students with physical impairment in Hedar 11 Secondary School of North Gondar Zone of Amhara Regional State of Ethiopia. Five students with physical impairments were selected through available sampling technique and 8 teachers were selected from 24 teachers of the school through simple random sampling via lottery method. Questionnaire and interview were the main data collection instruments. To collect data letter of recommendation was taken from Department of Special Needs Education of School of Education of the University of Gondar and was given to the Principal of Hedar 11 Secondary School. Then, the director was cleared with the objectives of the study and he expressed his permission the study to be undertaken. And then, the selection of the teacher participants and the student participants followed. The data collected was analysed quantitatively (through, frequency, percentage and mean) and qualitatively through thematic analysis. The results demonstrated that the major absenteeism factors from school for students with physical impairments were: parents (lack of knowledge how to treat their children with physical impairment and financial problems), teachers (negative attitude, lack of professionalism in special needs education i.e. lack of knowledge on how to treat children with physical impairments), guards of the school, peers, and school related factors (such as, inflexible rule and regulation of the school, long distance between the school and the homes of the students with physical impairments, uncomfortable infrastructure of the school, lack of learning material and less support given to the students). Finally, based on the study findings relevant conclusions and recommendations were forwarded.
GIS Based Soil Loss Estimation Using RUSLE Model: The Case of Jabi Tehinan Woreda, ANRS, Ethiopia  [PDF]
Tadesse Amsalu, Abebe Mengaw
Natural Resources (NR) , 2014, DOI: 10.4236/nr.2014.511054
Soil degradation in the form of soil erosion is a serious and continuous environmental problem in Jabi Tehinan Woreda. Uncontrolled land use, deforestation, over cultivation, overgrazing and exploitation of biomass for firewood, construction and other household uses due to increasing population ultimately lead to severe soil erosion. The impact of natural hazards like erosion can be minimized and ultimately controlled by disaster preparedness maps. Therefore, the overall objective of this paper is to quantify and map an estimated soil loss by examining different topographic and anthropogenic factors for the planning and implementations of sustainable soil conservation and management system in the study area. This study had integrated Geographic Information System (GIS), Remote Sensing (RS) and Multi-Criteria Evaluation (MCE) techniques to quantify and map erosion vulnerable areas using RUSLE model. Slope gradient, slope length, soil type, soil conservations techniques, cover management and rainfall variables were used as input model parameters/variables. The data had been collected and analyzed from different land sat imageries, SRTM data, topomaps and point interpolations of primary data. Finally, the aggregated effects of all parameters had been analyzed and soil loss from the area was calculated using RUSEL models. After analyzing all model parameters, areas in steeper slope with Lithosols, Eutric Nitosols, Orthic Luvisols, croplands, bare lands and river banks have been identified as the most erosion vulnerable areas. Quantitatively, an estimated annual soil loss in Jabi Tehinan Woreda ranges from nearly 0 in south and central parts of the area to 504.6 t/ha/yr in steeply sloping mountainous areas of the north and north-eastern parts of the catchments.
Automobile Roof Panel Forming: Prediction and Compensation of Springback and Application of Numerical Simulation Based on Dynaform  [PDF]
Amsalu K. Addis
World Journal of Engineering and Technology (WJET) , 2018, DOI: 10.4236/wjet.2018.64061
Abstract: The forming of sheet metal in a desired and attractive shape is a process that requires an understanding of materials, mechanics and manufacturing principles. Manufacturing a consistent sheet metal component is challenging due to the nonlinear interactions of various material and process parameters. One of the major issues in the manufacturing of inconsistent?sheet metal?parts is springback. Springback is the elastic strain recovery in the material after the tooling is removed and the final shape of the product depends on the springback amount formed. In this study according to the result of simulation the inverted compensation method is adopted to optimize die surface design. Similarly, to predict and compensate the springback error this study presented an analytical approach of forming process in a stepwise modification of the automobile roof panel. Moreover, based on?Dynaform?and?finite element analysis of sheet metal stamping simulation the sprinback in automobile roof panel is predicted and compensated.In addition, this study examines the significant requirements of the sheet metal forming precision of automobile body and the simulation of forming, stamping and springback of automobile roof panel is carried out, and the result of simulation also is analyzed.
Economic Impacts of Climate Change on Secondary Activities: A Literature Review  [PDF]
Surender Kumar, Amsalu W. Yalew
Low Carbon Economy (LCE) , 2012, DOI: 10.4236/lce.2012.32006
Abstract: The fast growing literature on economic impacts of climate change is inclined to assessing the impacts on agricultural production and productivity and on human health. The economic impacts of climate change however, go beyond these sectors. In this paper, we attempted to review the scarcely available literature on the economic impacts of the change in the climate of the earth on some selected non-agricultural secondary and tertiary level of economic activities. It is attempted to summarize the ways through which the climate change can affect non-agriculture economic activities. The discussion on the literature can be synthesized as showing the impacts on secondary and tertiary level of economic activities are wide and complex and eventually may be larger than on the impacts on agriculture for those middle and high-income countries where the share of agriculture in national GDP is low.
The Political Situation, Trends and Geopolitical Implications of Sub-Saharan and North African Countries: Comparative Study  [PDF]
Amsalu K. Addis, Zuping Zhu
Open Journal of Political Science (OJPS) , 2018, DOI: 10.4236/ojps.2018.82009
Abstract: Political instability appears to be one of the most important obstacles to economic development?and has become endemic in several African countries. Lack of political stability in sub-Saharan Africa (SSA) and the North African countries, the existence of a number of socio-political, economic, religious and cultural factors that are likely to provoke the economy of the continent had been a headline for long.?This paperorganized chronologically, beginning with the reign of civilization, continues to the means of political instability and concludes?with a different perspective of fundamental aspects of African countries. By seeking the truth from facts, this paper contributes to the gap of knowledge for the African nation and the foreign countries about the political condition, trends and economic diversification ofAfrica.This paperalso investigates few issues including the possibilities of Africa’s political turbulence and provides an overview of the major considerations associated with SSA?and North African situations,?contemplating?whether SSA replicates the North African political chaos and discussesthoroughly Africa’s pressing political governance issues, including the power thirstiness, leadership institution and the action of African Union (AU). The AU has improved its fragile reputation somewhat in recent years, but the challenges that Africa faces are still huge.
Intestinal parasites infection and associated factors among school children in Dagi primary school, Amhara National Regional State, Ethiopia  [PDF]
Mulat Alamir, Worku Awoke, Amsalu Feleke
Health (Health) , 2013, DOI: 10.4236/health.2013.510228

Introduction: Intestinal parasitic infections are among the most common communicable diseases worldwide, particularly in developing countries. Worldwide, about 3.5 billion people are affected, and 450 million are ill as a result of these infections, among whom, the majority are children. The objective of this study was to assess prevalence of intestinal parasites infection and associated risk factors among school children in Dagi primary school, ANRS, Ethiopia. Methods: Institutional-based cross-sectional study was conducted by involving 399 school children from 24 September to 19 October, 2012. Structured questionnaires were used to identify environmental, socio-demographic and behavioral factors and stool specimens were collected and examined for parasites using direct smear and formal-ether concentration technique. Data analysis was done by using SPSS version 15 statistical soft ware. Results: Eight species of intestinal parasites were identified with an overall prevalence of 77.9%. Students were infected with one or more intestinal parasites and the predominant parasite was hook worm, 94 (23.6%) followed by G. lamblia 91 (22.8%), E. histoltica 86 (21.6%) and Strongyloides 6 (1.5%). The presence of mixed parasitic infection was 106 (34.1%), double and triple infections were 97 (91.5%) and 9 (8.5%) respectively. Intestinal parasitic infection was higher in children whose fathers’ occupational status were farmers, who had unclean finger nails and who did not have the habit of wearing shoes (p < 0.05). Conclusions: Intestinal parasites infection was an important public health problem among Dagi primary school children. Therefore, the local health office and other governmental and non-governmental organizations need to give attention to this serious problem of intestinal parasitic infection of school children.

Land Use and Land Cover Changes in Awash National Park, Ethiopia: Impact of Decentralization on the Use and Management of Resources  [PDF]
Solomon Belay, Aklilu Amsalu, Eyualem Abebe
Open Journal of Ecology (OJE) , 2014, DOI: 10.4236/oje.2014.415079
Abstract: We analyzed the magnitude of land use land cover changes and identified drivers of those changes at Awash National Park, Ethiopia, using aerial photographs, satellite images and field observation. Scattered bushland—the most important habitat for the wild animals, declined drastically. Areas under grassland, farmland or open land increased over the study period. Policy and park border demarcation issues were identified as drivers of change before 1995 (before decentralization), whereas livestock grazing was indicated to be the leading driver of change after 1995. Major events and causes that largely explained these changes include immigration of the Ittu community, land tenure system, drought, poaching, use policy issues and regional economic and infrastructural development. Our study reveals that the sustainability of the park calls for an immediate action to reduce the ever increasing human and livestock pressure on park resources.
Heritability and Correlation among Sugarcane (Saccharum spp.) Yield and Some Agronomic and Sugar Quality Traits in Ethiopia  [PDF]
Esayas Tena, Firew Mekbib, Amsalu Ayana
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.710139
Abstract: To assess broad sense heritability and phenotypic and genetic correlations among sugarcane yield components, an experiment was conducted at Wonji and Metehara Sugar Estates of Sugar Corporation of Ethiopia during 2012/2013. High broad sense heritability (h2) was detected for stalk diameter (0.730), single cane weight (0.672), millable cane number (0.624), stalk height (0.624) and pol % (0.608), indicating that these traits could be selected for easily. Expected genetic gain of the yield components was moderate to high. All traits had low to high genetic correlations (rg = -0.005 to 0.884) with cane yield and (rg = 0.027 to 0.999) with sugar yield. On average genetic correlations were higher than phenotypic correlations. High Genotypic Coefficient of Variation (GCV), broad sense heritability and expected genetic advance were recorded for stalk diameter, single cane weight and millable cane number. A selection strategy based on these traits could lead to improvement in cane and sugar yield.
Correlation and Path Coefficient Analyses in Sugarcane Genotypes of Ethiopia  [PDF]
Esayas Tena, Firew Mekbib, Amsalu Ayana
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.710141
Abstract: To study the relations of certain morphological and sugar quality characters with sugarcane yield, an experiment was conducted at Wonji and Metehara Sugar Estates, Ethiopia between March 2012 and October 2013. The experiment, comprising of 400 sugarcane genotypes of which 174 were local that were collected from different regional states of Ethiopia and 226 introduced, was laid out in partial balanced lattice design with two replications. Data was collected on cane yield and its components, sugar yield and sugar quality traits. ANOVA, correlation and path coefficient analysis were done. Analysis of variance revealed significant differences (P < 0.01) for all the characters studied. Cane yield showed strong positive and highly significant (P < 0.01) correlation with millable cane number (r = 0.832), single cane weight (r = 0.528), stalk height (r = 0.517) and sugar yield (r = 0.987). There was also positive significant (P = 0.05) correlation of tiller count and cane diameter with cane yield. Path analysis revealed the highest positive direct effect of millable cane number (0.812) on cane yield followed by single cane weight (0.682) and pol percent (0.550). However, stalk diameter and brix percent had considerable negative direct effects and indirect positive
Page 1 /45
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.