331 research outputs found

    In search of Insights from Community of Practice and Use of Telemedicine in Low income Countries: The case of Ethiopia

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    The use of ICT for exchange of medical records in provision of health care services appears to be a viable option for enhancing the capacity of low income developing countries struggling with shortage of qualified medical personnel. This study seeks to gain a preliminary assessment of whether health professionals who work in the health facilities covered by the Ethio-Indian Telemedicine program have adopted and used the Telemedicine technology to enhance health care services. Among other things, the study also aims to understand the extent to which health professionals in the study area consider Telemedicine as a viable option for delivery of health care services. Survey will be conducted to gather information from users in the study area. The study is primarily informed by literature on Community of Practice, Unified Theory of Acceptance and Use of Technology, and Case Study Research

    Provenance of middle Stone Age obsidian artefacts from the central sector of the Main Ethiopian Rift Valley

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    The Gademotta/Kulkuletti sites, located in the central part of the Main Ethiopian Rift Valley, represent the earliest Middle Stone Age (MSA) sequences in the country. Here we present the geochemical provenance of obsidian archaeological artefact recovered through excavation at the site. The artefacts and source materials were characterized by EDXRF and electron microprobe. Results show that the artefacts were procured from two sources, one local, and one presumably more distant, implying that despite the local availability of good quality raw material, not all obsidians were procured from a nearby source

    The burden of neglected tropical diseases in Ethiopia, and opportunities for integrated control and elimination

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    Background: Neglected tropical diseases (NTDs) are a group of chronic parasitic diseases and related conditions that are the most common diseases among the 2·7 billion people globally living on less than US$2 per day. In response to the growing challenge of NTDs, Ethiopia is preparing to launch a NTD Master Plan. The purpose of this review is to underscore the burden of NTDs in Ethiopia, highlight the state of current interventions, and suggest ways forward. Results: This review indicates that NTDs are significant public health problems in Ethiopia. From the analysis reported here, Ethiopia stands out for having the largest number of NTD cases following Nigeria and the Democratic Republic of Congo. Ethiopia is estimated to have the highest burden of trachoma, podoconiosis and cutaneous leishmaniasis in sub-Saharan Africa (SSA), the second highest burden in terms of ascariasis, leprosy and visceral leishmaniasis, and the third highest burden of hookworm. Infections such as schistosomiasis, trichuriasis, lymphatic filariasis and rabies are also common. A third of Ethiopians are infected with ascariasis, one quarter is infected with trichuriasis and one in eight Ethiopians lives with hookworm or is infected with trachoma. However, despite these high burdens of infection, the control of most NTDs in Ethiopia is in its infancy. In terms of NTD control achievements, Ethiopia reached the leprosy elimination target of 1 case/10,000 population in 1999. No cases of human African trypanosomiasis have been reported since 1984. Guinea worm eradication is in its final phase. The Onchocerciasis Control Program has been making steady progress since 2001. A national blindness survey was conducted in 2006 and the trachoma program has kicked off in some regions. Lymphatic Filariasis, podoconiosis and rabies mapping are underway. Conclusion: Ethiopia bears a significant burden of NTDs compared to other SSA countries. To achieve success in integrated control of NTDs, integrated mapping, rapid scale up of interventions and operational research into co implementation of intervention packages will be crucial

    Treatment-seeking behaviour for febrile illness in an area of seasonal malaria transmission in rural Ethiopia

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    BACKGROUND: Very little is known about the management of malaria and treatment-seeking patterns among children and adults in areas of seasonal malaria transmission particularly in east Africa. OBJECTIVES: The aim of this study was to assess treatment-seeking behaviour for reported malaria among all age groups in an area of seasonal transmission. METHODS: A community-based cross-sectional study was carried out among 2,253 households in 12 randomly selected rural kebeles in Adami Tulu district in south-central Ethiopia, during October-November 2003, using a pre-tested interviewer-administered structured questionnaire. RESULTS: Reported malaria was 14% among 12,225 people assessed during the last 14 days. Family/self-diagnosis was most common and the main first responses included visiting village-based community health workers (CHWs) (33%), public health facility (23%) and private clinic (17%). Home treatment was the least reported first response (3%). Only 13% had sought treatment within the first 24 hours of symptom onset. Early treatment-seeking pattern was reported among those who visited CHWs and practiced home treatment, with more delays among public facility users. Treatment-seeking behaviour was similar in all age groups. CONCLUSION: A considerable proportion of visits were made to CHWs and private providers, necessitating the importance of strengthening both community-based interventions and peripheral public and private facilities. Finally, the community should be informed and educated about the importance of early diagnosis and prompt treatment with effective antimalarials

    Phosphorylation of Kif26b Promotes Its Polyubiquitination and Subsequent Proteasomal Degradation during Kidney Development

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    Kif26b, a member of the kinesin superfamily proteins (KIFs), is essential for kidney development. Kif26b expression is restricted to the metanephric mesenchyme, and its transcription is regulated by a zinc finger transcriptional regulator Sall1. However, the mechanism(s) by which Kif26b protein is regulated remain unknown. Here, we demonstrate phosphorylation and subsequent polyubiquitination of Kif26b in the developing kidney. We find that Kif26b interacts with an E3 ubiquitin ligase, neural precursor cell expressed developmentally down-regulated protein 4 (Nedd4) in developing kidney. Phosphorylation of Kif26b at Thr-1859 and Ser-1962 by the cyclin-dependent kinases (CDKs) enhances the interaction of Kif26b with Nedd4. Nedd4 polyubiquitinates Kif26b and thereby promotes degradation of Kif26b via the ubiquitin-proteasome pathway. Furthermore, Kif26b lacks ATPase activity but does associate with microtubules. Nocodazole treatment not only disrupts the localization of Kif26b to microtubules but also promotes phosphorylation and polyubiquitination of Kif26b. These results suggest that the function of Kif26b is microtubule-based and that Kif26b degradation in the metanephric mesenchyme via the ubiquitin-proteasome pathway may be important for proper kidney development

    Seasonal variability in the abundance and stable carbon-isotopic composition of lipid biomarkers in suspended particulate matter from a stratified equatorial lake (Lake Chala, Kenya/Tanzania): Implications for the sedimentary record

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    We studied the distribution and stable carbon-isotopic (δ13C) composition of various lipid biomarkers in suspended particulate matter (SPM) from the water column of Lake Chala, a permanently stratified crater lake in equatorial East Africa, to evaluate their capacity to reflect seasonality in water-column processes and associated changes in the lake's phytoplankton community. This lake has large seasonal variation in water-column dynamics (stratified during wet seasons and mixing during dry seasons) with associated phytoplankton succession. We analyzed lipid biomarkers in SPM collected monthly at 5 depths (0–80 m) from September 2013 to January 2015. Seasonal variation in total phytoplankton biovolume is strongly reflected in the concentration of phytadienes, a derivative of the general photosynthetic pigment chlorophyll. The wax and wane of several specific biomarker lipids between June and December 2014 reflect pronounced phytoplankton succession after deep mixing, starting with a long and sustained chlorophyte bloom (reflected by C23:1, C25:1 and Cn-alkenes, and C21 and C23n-alkanes), followed by a peak in diatoms between July and October (loliolide and isololiolide), and then eustigmatophytes (C30 and C32 1,15 diols) once stratification resumes in October. Peak abundance of the C19:1n-alkene during shallow mixing of the water column in January–February 2014 can be tentatively linked to the seasonal distribution of cyanobacteria. The concentration, seasonal variability, and low δ13C values of the C28 fatty acid in the SPM suggest that this biomarker is produced in the water column of Lake Chala instead of having the typically assumed vascular plant origin. The δ13C signature of particulate carbon and all aquatic biomarkers become increasingly more negative (by up to 16‰) during mixing-induced episodes of high productivity, whereas enrichment would be expected during such blooms. This reversed fractionation may be attributed to chemically enhanced diffusion, which generates depleted HCO3− under high pH (>9) conditions, as occur in the epilimnion of Lake Chala during periods of high productivity. The influence of this process can potentially explain previously observed 13C-depleted carbon signatures in the paleorecord of Lake Chala, and should be considered prior to paleorecord interpretation of organic-matter δ13C values derived (partially) from aquatic organisms in high-pH, i.e. alkaline, lake

    Consolidating Heterogeneous Enterprise Data for Named Entity Linking and Web Intelligence

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    Linking named entities to structured knowledge sources paves the way for state-of-the-art Web intelligence applications which assign sentiment to the correct entities, identify trends, and reveal relations between organizations, persons and products. For this purpose this paper introduces Recognyze, a named entity linking component that uses background knowledge obtained from linked data repositories, and outlines the process of transforming heterogeneous data silos within an organization into a linked enterprise data repository which draws upon popular linked open data vocabularies to foster interoperability with public data sets. The presented examples use comprehensive real-world data sets from Orell Füssli Business Information, Switzerland's largest business information provider. The linked data repository created from these data sets comprises more than nine million triples on companies, the companies' contact information, key people, products and brands. We identify the major challenges of tapping into such sources for named entity linking, and describe required data pre-processing techniques to use and integrate such data sets, with a special focus on disambiguation and ranking algorithms. Finally, we conduct a comprehensive evaluation based on business news from the New Journal of Zurich and AWP Financial News to illustrate how these techniques improve the performance of the Recognyze named entity linking component

    Communicating employability: the role of communicative competence for Zimbabwean highly skilled migrants in the UK

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    Skilled migration is an increasingly important topic for both policy and research internationally. OECD governments in particular are wrestling with tensions between their desire to use skilled migration to be on the winning side in the ‘global war for talent’ and their pandering to and/or attempts to outflank rising xenophobia. One aspect that has received relatively little attention is skilled migration from the African Commonwealth to the UK, a situation in which skilled migrants have relatively high levels of linguistic capital in the language of the host country. We focus here on the case of Zimbabwe. In spite of its popular image as a failed state, Zimbabwe has an exceptionally strong educational tradition and high levels of literacy and fluency in English. Drawing on 20 in-depth interviews of Zimbabwean highly skilled migrants, we explore the specific ways in which the communicative competences of these migrants with high formal levels of English operate in complex ways to shape their employability strategies and outcomes. We offer two main findings: first, that a dichotomy exists between their high level formal linguistic competence and their ability to communicate in less formal interactions, which challenges their employability, at least when they first move to the UK; and second, that they also lack, at least initially, the competence to narrativise their employability in ways that are culturally appropriate in England. Thus, to realise the full potential of their high levels of human capital, they need to learn how to communicate competently in a very different social and occupational milieu. Some have achieved this, but others continue to struggle
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