1,236 research outputs found

    The Design and Manufacturing of Essential oil Distillation Plant for rural poverty Alleviation in Ethiopia.

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    The paper presents economic value of the design and manufacturing of essential oil production plant as a strategy for rural poverty alleviation in rural Ethiopia. The level of technology for small scale essential oil industry is characterized for rural community in Ethiopia. The adaptation of oil distillation technology for essential oil production is proposed for small scale industrial entrepreneur. Steam distillation method is selected considering the constraints to meet the socio-economic level of the rural community. The distillation plant has been modelled based on local resources and the first prototype has been manufactured and tested. The study showed that the small scale manufacturing industry in the country do not have the capacity to manufacture the complete distillation plant system with the required precision for standard quality of oil at affordable cost. Thus, the design and the experiment in the use of a prototype small size distillation unit showed that the technology is appropriate for essential oil distillation with low cost and minimal decrease in oil quality. Keywords: Small scale essential oil industry, technology characterization, rural poverty alleviation, low cost manufacturing distillation unit. Ethiopian Journal of Environmental Studies and Management Vol. 1 (1) 2008: pp. 84-9

    Socio-demographic correlates of mental and behavioural disorders of children in Southern Ethiopia

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    Objective: To describe the magnitude and socio-demographic correlates of specific mental and behavioural disorders.Design: A cross-sectional survey.Setting: Butajira district, southern Ethiopia.Participants: The Amharic version of the Diagnostic Instrument for Children and Adolescents (DICA) was used to interview parents of 1,477 children.Main outcome measures: Attention Deficit Hyperactivity Disorder (ADHD), Disruptive behaviour disorders, mood and anxiety disorders.Results: Using a multivariate logistic model, age was significantly associated with ADHD. Children between 10 and 14 years of age had more than three-fold increased risk of ADHD compared to younger children: adjusted odds ratio and 95% confidence interval (OR, 95%CI) = 3.17 (1.16, 8.67), p=0.02. Residence in urban area was also significantly associated with ADHD: adjusted OR (95% CI) = 2.84 (1.14-7.07), p=0.03. Disruptive behaviour disorders were significantly associated with increasing age: adjusted OR (95% CI)= 4.24 (1.43, 12.6). Mood and anxiety disorders were not significantly associated with any of the sociodemographic variable studied.Conclusion: The study shows that age and residence in urban areas are significant correlates of behavioural disorders in children

    Synthesis and characterization of CdS/UiO-66/Ag3PO4 nanocomposite for photocatalytic degradation of methyl orange under visible light irradiation

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    Single, binary and ternary nanomaterials were synthesized by precipitation, solvothermal, simple solution and impregnation methods to serve as photocatalysts. The crystal structure, morphology, band gap energy, functional groups and optical properties of these materials were characterized by XRD, SEM-EDX, UV-Vis, FTIR, and PL instrumental techniques, respectively. Photocatalaytic degradation performances of all the as-synthesized photocatalysts were investigated under visible light irradiation using MO as a model organic pollutant. The photocatalytic degradation performances of all the photocatalysts were evaluated on aqueous solution of the model pollutant dye as well as on a real sewage sample solution collected from Bahir Dar Textile Share Company. Results suggested that the optimized ternary nanocomposite photocatalyst exhibited a relatively higher efficiency towards the photodegradation of both the methyl orange (MO) dye solution (90%) and the real sewage sample solution (71.2%). The effect of operational parameters such as pH (4), initial dye concentration (10 mg/L) and photocatalyst load (0.2 g/L) in MO dye degradation were investigated by using the ternary CdS/UiO-66/Ag3PO4 (R4) nanocomposite.                     KEY WORDS: Metal-organic frameworks, Nanocomposite, Ternary system, Photocatalysts, Methyl orange   Bull. Chem. Soc. Ethiop. 2020, 34(3), 571-588. DOI: https://dx.doi.org/10.4314/bcse.v34i3.1

    The magnitude and correlates of internalized stigma among people with mental illness attending the outpatient department of Amanuel Mental Specialized Hospital, Addis Ababa, Ethiopia.

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    Introduction: Internalized stigma is an ongoing process of psychological assimilation of the community labels towards mental illness, in which people with mental illness (PWMI) gradually lose their current positive belief and confidence in themselves and their future wishes. It affects the treatment and help-seeking behavior which leads to poor drug adherence, social marginalization, unemployment, socio-economic devastation, and poor quality of life for PWMI. Therefore, the current study aimed to determine the magnitude and correlates of high internalized stigma among People with Mental Illness (PWMI) attending the outpatient department of Amanuel mental specialized hospital, Addis Ababa, Ethiopia. Methods: Institution based cross-sectional study was conducted from March 03 to March 28, 2019. A consecutive sampling technique was used to select an estimated 406 study participants. Internalized stigma was assessed using a 29 Item Internalized Stigma of Mental Illness (ISMI-29) tool. Data were entered and analyzed using SPSS 22 software. A Binary logistic regression model was fitted to identify correlates of internalized stigma. An adjusted odds ratio (AOR) with a 95% confidence interval was computed to determine the strength of association and the level of significance was declared with a p-value <0.05. Result: Of the total study participants, 388 respondents agreed to participate in the study giving a response rate of 96%. The magnitude of high internalized stigma among the study participants was 61.3% (95% CI: 58.2, 64.4). Poor social support (AOR = 1.973; 95%CI = 1.189, 3.27) and being unemployed (AOR = 2.87, 95% CI = 1.192-6.931) were significant correlates of high internalized stigma among PWMI. Conclusion: Overall, around three in five PWMI experienced high internalized stigma. Poor social support and being unemployed were significant correlates of high internalized stigma. Large scale community-based study supplemented by qualitative design is highly recommended to identify additional correlates of internalized stigma and understand perspectives of PWMI

    Does One Size Fit All? Drug Resistance and Standard Treatments: Results of Six Tuberculosis Programmes in Former Soviet Countries.

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    SETTING: After the collapse of the Soviet Union, countries in the region faced a dramatic increase in tuberculosis cases and the emergence of drug resistance. OBJECTIVE: To discuss the relevance of the DOTS strategy in settings with a high prevalence of drug resistance. DESIGN: Retrospective analysis of one-year treatment outcomes of short-course chemotherapy (SCC) and results of drug susceptibility testing (DST) surveys of six programmes located in the former Soviet Union: Kemerovo prison, Russia; Abkhasia, Georgia; Nagorno-Karabagh, Azerbaijan; Karakalpakstan, Uzbekistan; Dashoguz Velayat, Turkmenistan; and South Kazakhstan Oblast, Kazakhstan. Results are reported for new and previously treated smear-positive patients. RESULTS: Treatment outcomes of 3090 patients and DST results of 1383 patients were collected. Treatment success rates ranged between 87% and 61%, in Nagorno-Karabagh and Kemerovo, respectively, and failure rates between 7% and 23%. Any drug resistance ranged between 66% and 31% in the same programmes. MDR rates ranged between 28% in Karakalpakstan and Kemerovo prison and 4% in Nagorno-Karabagh. CONCLUSION: These results show the limits of SCC in settings with a high prevalence of drug resistance. They demonstrate that adapting treatment according to resistance patterns, access to reliable culture, DST and good quality second-line drugs are necessary

    COMMUNITY KNOWLEDGE, ATTITUDE AND PRACTICES (KAP) ON FLUOROSIS AND ITS MITIGATION IN ENDEMIC AREAS OF ETHIOPIA

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    ABSTRACT Optimum fluoride intake plays an essential role in the prevention of dental caries while fluoride consumption above recommended level interferes with the normal formation of tooth enamel and bones and may increase risk of dental and skeletal fluorosis. The knowledge and practices of endemic communities on etiology of fluorosis will help in its mitigation and prevention. The objective of this study was to investigate the knowledge, attitude and practices of endemic community on fluoride contamination, fluorosis and prevention practices in order to devise coordinated and targeted prevention mechanisms. Focus group discussions (FGD) and key-informant interview were conducted in three dietary areas to collect knowledge, attitude and practices (KAP) of the endemic community in July 2013.The results indicated that health consequences of fluoride contaminated water are fairly understood. None of the discussants mentioned the word &quot;fluoride&quot;. The knowledge and perception of the community on fluoride ingestion is poor. Health extension workers (HEWs) did not teach about fluoride and related health consequences. Dental fluorosis was reported to start at early ages and not commonly perceived as a major problem. However, adolescents worried and felt that they might be singled out when going to other areas. Older people have a skeletal fluorosis, which interferes with their day to day activities. In severely affected people, the teeth were weak and fragile and thus create difficulty in chewing hard foods like unfermented dry flat bread, sugar cane and toasted grains. People prefer rain water rather than water from borehole because of the inconvenient taste of the latter. The endemic communities have no sufficient knowledge and skills on potential sources of fluoride intake, the debilitating effect of high fluoride ingestion, and preventive and mitigatory measures to reduce fluoride intake. The effect of fluoride contamination and mitigatory methods should get sufficient attention by the community, health workers and concerned governmental bodies. The trend of harvesting and using rain water should be encouraged as it reduces fluoride intake. Future studies should focus on information communication on possible fluoride risks, intervention and evaluation studies on defluoridation, rain water harvesting and mitigatory techniques

    Men’s Knowledge and Spousal Communication about Modern Family Planning Methods in Ethiopia

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    This study attempted to determine knowledge, approval and communication about family planning methods among married men in Ethiopia. A cross-sectional study was conducted among a representative sample of 738 married males in Amhara Region. All 738 (100%) of the respondents had heard of family planning. About 558 (75.6%) mentioned the importance of using contraceptives for birth spacing and 457 (61.9%) to limit birth. Four hundred and forty-five (60.3%) of participants had ever discussed family planning with their wives. Thirty-three (33.0%) of the respondents reported that they were the sole decision makers in their families. About 597 (80.9%) approved the use of contraceptives. However, some participants did not discuss and approve family planning with their partner. This recalled an intensive effort has been taken by the concerned body to reach the country&rsquo;s targeted family planning coverage by involving men in reproductive health endeavor to enhance the discussion and agreement about family planning usage

    Brief Communication: Comparison of formol-acetone concentration method with that of the direct iodine preparation and formol-ether concentration methods for examination of stool parasites

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    Background: Formol-ether concentration technique is taken as a gold standard method to detect most intestinal parasites; however, because of its low safety and hazardous impact a need for better technique has a paramount importance.Objective: To evaluate a formol- acetone concentration method in comparison with the conventional direct iodine preparation and formol- ether concentration methods in detecting intestinal parasites.Methods: A total of 382 stool samples were collected from Tseda elementary school children, in 2006. Samples were processed and examined using formol-acetone concentration, the direct iodine stained smear, and formol-ether concentration methods.Results: Formol-ether detected 79.1% of parasites followed by formol-acetone (73.6%) and direct iodine preparation (50.3%). Statistical (P< 0.05) difference was observed for the detection of over all positivity of any parasites between the two concentration methods. However, the sensitivity, specificity, and positive predicative value of formol-acetone were 88.1%, 81.3%, and 94.7%, respectively respective to formol-ether method. Almost similar detection ability was also observed by the two concentration methods for A. lumbricoids, H. nana, T. trichuira, and S. stercoralis. However, there was difference in the detection rate of hookworm and S. mansoni.Conclusions: for safety and hazard free laboratory set up, this new method might be used as an alternative choice for formol-ether concentration method. [Ethiop. J. Health Dev. 2010;24(2):148-151

    Child labor and childhood behavioral and mental health problems in Ethiopia

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    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: 119-12

    Field test of a novel detection device for Mycobacterium tuberculosis antigen in cough

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    BACKGROUND: Tuberculosis is a highly infectious disease that is spread from person to person by infected aerosols emitted by patients with respiratory forms of the disease. We describe a novel device that utilizes immunosensor and bio-optical technology to detect M. tuberculosis antigen (Ag85B) in cough and demonstrate its use under field conditions during a pilot study in an area of high TB incidence. METHODS: The TB Breathalyzer device (Rapid Biosensor Systems Ltd) was field tested in the outpatient clinic of Adama Hospital, Ethiopia. Adults seeking diagnosis for respiratory complaints were tested. Following nebulization with 0.9% saline patients were asked to cough into a disposable collection device where cough aerosols were deposited. Devices were then inserted into a portable instrument to assess whether antigen was present in the sample. Demographic and clinical data were recorded and all patients were subjected to chest radiogram and examination of sputum by Ziehl-Nielsen microscopy. In the absence of culture treatment decisions were based on smear microscopy, chest x-ray and clinical assessment. Breathalyzer testing was undertaken by a separate physician to triage and diagnostic assessment. RESULTS: Sixty individuals were each subjected to a breathalyzer test. The procedure was well tolerated and for each patient the testing was completed in less than 10 min. Positive breath test results were recorded for 29 (48%) patients. Of 31 patients with a diagnosis of tuberculosis 23 (74%; 95% CI 55-87) were found positive for antigen in their breath and 20 (64%; 95% CI 45-80) were smear positive for acid fast bacilli in their sputum. Six patients provided apparent false positive breathalyzer results that did not correlate with a diagnosis of tuberculosis. CONCLUSIONS: We propose that the breathalyzer device described warrants further investigation as a tool for studying exhalation of M. tuberculosis. The portability, simplicity of use and speed of the test device suggest it may also find use as a tool to aid early identification of infectious cases. We recommend studies be undertaken to determine the diagnostic sensitivity and specificity of the device when compared to microbiological and clinical indicators of tuberculosis disease
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