Posterior mediastinal Castleman’s disease with vascular malformation

Castelman’s disease (CD) is a rare lymphoproliferative disorder of unknown aetiology, with the unicentric form usually involving the chest. Posterior mediastinal involvement is uncommon, exceedingly so when associated with vascular malformation. We report the case of a young female patient who presented with 9 months of left-sided, dull chest and flank pain associated with weight loss and a subjective tingling sensation. Imaging reveled a well-circumscribed hyper-enhancing posterior mediastinal para-oesophageal mass. She underwent a right posterolateral thoracotomy, mass excision. Histopathologic examination confirmed Castleman’s disease (CD) with arteriovenous malformation. CD with vascular malformation is a very rare condition that can only be diagnosed histopathologically. Surgical resection is effective and has a good prognosis. Keywords: Castleman’s disease; AV malformation; posterior mediastinum

Application of remote sensing and GIS inland use/land cover mapping and change detection in a part of south western Nigeria

Mapping land use/land cover (LULC) and change detection using remote sensing and GIS techniques is an area of interest that has been attracting increasing attention. This paper is an attempt to assess the changes in land use/land cover in some parts of south-western Nigeria over a 16 year period. The study made use of LandSat imageries of 1986 and 2002. The images were classified using Maximum Likelihood classification method. The results show that disturbed/degraded forest constituted the most extensive type of land use/land cover in the study area. The increasing population and economic activities were noted to be putting pressure on the available land resources. This paper highlights the importance of remote sensing and GIS techniques in apprehending the situation in south-western Nigeria.Keywords: LULC, conversion, modification, forest reserve, change detection, classification scheme, encroachmen

Implicit prices of indigenous cattle traits in central Ethiopia: Application of revealed and stated preference approaches

The diversity of animal genetic resources has a quasi-public good nature that makes market prices inadequate indicator of its economic worth. Applying the characteristics theory of value, this research estimated the relative economic worth of the attributes of cattle genetic resources in central Ethiopia. Transaction level data were collected over four seasons in a year and choice experiment survey was done in five markets to generate data on both revealed and stated preferences of cattle buyers. Heteroscedasticity efficient estimation and random parameters logit were employed to analyse the data. The results essentially show that attributes related to the subsistence functions of cattle are more valued than attributes that directly influence marketable products of the animals. The findings imply the strong need to invest on improvement of attributes of cattle in the study area that enhance the subsistence functions of cattle that their owners accord higher priority to support their livelihoods than they do to tradable products

Social Anxiety Disorder Among Undergraduate Students of Hawassa University, College of Medicine and Health Sciences, Ethiopia.

Introduction:Social anxiety disorder (SAD), also called social phobia, is an uncontrollable fear of social situations, which involve fear of observation or making contact with strangers. So, helping individuals with social anxiety, which is among the factors affecting mental health, can significantly influence a students' mental health and prevent other problems. Objective:The study aimed at assessing the magnitude of SAD and its determinants among undergraduate students of Hawassa University, College of Medicine and Health Sciences. Methods:An institution based cross-sectional study was conducted from April 1 to May 30, 2018, in Hawassa University, College of Medicine and Health Sciences. We selected participants by a stratified random sampling method, and we collected data independently from each stratum (department) using a 17 item self-rating Social Phobia Inventory (SPIN) scale to assess SAD. We performed multiple logistic regression analysis to find factors associated with SAD. Results:Out of 304 students, 293 completed the questionnaire, with a response rate of 96.3%. The mean age of the participants was 22.13 years with a standard deviation of ± 2.176, and 172 (58.7%) were males. The prevalence of SAD was 32.8%. Family history of mental illness (AOR=4.72, 95% CI (1.25, 17.74)), being a 3rd-year student (AOR=0.178, 95% CI (0.055, 0.57)) and being a 4th year student (AOR=0.15, 95% CI (0.049, 0.49)) were significantly associated with SAD. Conclusion:This study showed a high prevalence of SAD among medicine and health science students of Hawassa University. Therefore, the Ethiopian Ministry of Higher Education and university officials need to draw up a plan to reduce social phobia

Justification and Optimization Principles of ALARA in Pediatric CT at a Teaching Hospital in Ethiopia

BACKGROUND: Radiation from CT (computerized tomography), poses risk of radiation associated cancer. Studies indicate a cumulative dose of 50mGy triples the risk of leukemia and a dose of 60mGy triples the risk of brain tumors in children. This study aimed to assess the application of “Justification and Optimization Principles of ALARA (As Low As Reasonably Achievable)” in pediatric CT.METHOD: A prospective cross-sectional study was conducted from December 2017 to July 2018 G.C at Tikur Anbessa Specialized Hospital. CT request forms were reviewed. All pediatric patients listed for CT were included. The collected data were analyzed using SPSS version 25.RESULTS: Four hundred and twenty nine CT requests were reviewed, 246 (57.3%) were males and 183(42.7%) were females; 52(12.1%) were less than 1 year old, 153(35.7%) between 1 to 5 years, 113(26.3%) between 5 to 10 years and 111(25.8%) 10 to 14 years old. On the other hand, 28(6.5%) scan requests were rejected based on the ALARA justification principle, and from these, in 11(39.2%) MRI was recommended instead of CT, in 6(21.42%) US was recommended. Review of previous CT helped to reject 4(14.28%). Review of prior chest radiographs helped in rejecting 2(7.14%) requests. For 5(17.8%) and 19(4.4%), requests were optimized by applying principles of optimization to reduce received dose from CT.CONCLUSION: Overall, 47(11%) patients were protected from unnecessary radiation exposure by applying the principles of ALARA. The use of other alternating imaging modalities is vital in pediatric patients who are more radiosensitive and have longer time to manifest radiation induced injury

Ethiopia Social Accounting Matrix 2015/16

A Social Accounting Matrix (SAM) is a comprehensive and economy-wide database recording data on all transactions between economic agents in a certain economy during a certain period of time; its interest is twofold. First a SAM is a standard database for most whole economy modellers as it provides comprehensive data for economic modelling (multi-sectorial linear models or more complex CGE models). Second a SAM shows a complete and intuitive snapshot of the economy at hand. This report presents the Social Accounting Matrix of Ethiopia for the year 2015/16, describing its specific structure and the basis for its estimation. In this sense, it is necessary to highlight the special structure of this SAM to reflect the Home Production for Home Consumption (HPHC) issue and a high disaggregation of agricultural and food sectors, both aspects so relevant in developing countries. Finally, a complete on-line application is presented, both for the download of the SAM, and for the visualization of some indicators derived directly from it.JRC.D.4-Economics of Agricultur

Feasibility and acceptability of ACT for the community case management of malaria in urban settings in five African sites

<p>Abstract</p> <p>Background</p> <p>The community case management of malaria (CCMm) is now an established route for distribution of artemisinin-based combination therapy (ACT) in rural areas, but the feasibility and acceptability of the approach through community medicine distributors (CMD) in urban areas has not been explored. It is estimated that in 15 years time 50% of the African population will live in urban areas and transmission of the malaria parasite occurs in these densely populated areas.</p> <p>Methods</p> <p>Pre- and post-implementation studies were conducted in five African cities: Ghana, Burkina Faso, Ethiopia and Malawi. CMDs were trained to educate caregivers, diagnose and treat malaria cases in < 5-year olds with ACT. Household surveys, focus group discussions and in-depth interviews were used to evaluate impact.</p> <p>Results</p> <p>Qualitative findings: In all sites, interviews revealed that caregivers' knowledge of malaria signs and symptoms improved after the intervention. Preference for CMDs as preferred providers for malaria increased in all sites.</p> <p>Quantitative findings: 9001 children with an episode of fever were treated by 199 CMDs in the five study sites. Results from the CHWs registers show that of these, 6974 were treated with an ACT and 6933 (99%) were prescribed the correct dose for their age. Fifty-four percent of the 3,025 children for which information about the promptness of treatment was available were treated within 24 hours from the onset of symptoms.</p> <p>From the household survey 3700 children were identified who had an episode of fever during the preceding two weeks. 1480 (40%) of them sought treatment from a CMD and 1213 of them (82%) had received an ACT. Of these, 1123 (92.6%) were administered the ACT for the correct number of doses and days; 773 of the 1118 (69.1%) children for which information about the promptness of treatment was available were treated within 24 hours from onset of symptoms, and 768 (68.7%) were treated promptly and correctly.</p> <p>Conclusions</p> <p>The concept of CCMm in an urban environment was positive, and caregivers were generally satisfied with the services. Quality of services delivered by CMDs and adherence by caregivers are similar to those seen in rural CCMm settings. The proportion of cases seen by CMDs, however, tended to be lower than was generally seen in rural CCMm. Urban CCMm is feasible, but it struggles against other sources of established healthcare providers. Innovation is required by everyone to make it viable.</p