402 research outputs found

    Extramarital sexual practices and perceived association with HIV infection among the Borana pastoral community

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    Background: Evidence has shown that in sub-Saharan Africa, HIV spreads mainly through heterosexual relationships. It is documented that, among others, the problem is more pronounced in connection to prevailing multiple sexual relations and marital infidelity. Despite evident association between such practice and spread in HIV infection, to date multiple sexual partnerships is a common practice. Among the Borana pastoral community, where awareness about HIV and AIDS is documented to be limited, engagement in extramarital sexual practice is believed to be the norm rather than exception. However, it remains unclear as to why the practice continues and if the community feels its consequences.Objectives: To explore if and why extramarital sexual practice is maintained and sustained and perceived vulnerability to HIV infection among the Borana pastoral community.Methods: An ethnographic study design was employed to responds to the objectives of this study. Such questions: whether extramarital sex is still practiced, if so why? Who practices it, whether the community is aware of the consequence of such practice vis-a-vis HIV infection, were set to be answered. A total of nine FGDs with sixty-eight participants and sixty in-depth interviews with men and women participated in the study. Information so generated was coded, categorized and summarized with an application of MAXQDA version 10 qualitative data analysis software, and interpretation of the results was carried out based on the objectives of the study.Results: Sex before marriage is considered as a taboo and those involved are out-casted (cabana) from the normal life processes of the community. While young men may engage in sexual activity with married women even before marriage and continues to maintain extramarital partner (jaalto) after marriage, women’s engagement in the practice follows marriage. Participants agreed that although local culture ‘disproves’ it and the community recognizes the fact that it would facilitate HIV infection, extramarital sexual practice remains common in the community. Its persistence is attributed to multiple factors including personal interest to prove that one is wanted by the opposite sex given fulfillment of socially prescribed gender roles, and economic transactions between families of those involved. Despite consistent denial of the cultural approval of such practice and the growing concern over its consequences to the spread of HIV infection, extramarital sexual activity remains to be valued and cherished in the community.Conclusion: Despite the widespread recognition of the consequences of extramarital sex on the spread of HIV infection, there is vested interest among the community numbers to maintain the practice. This calls for urgent action to launch culturally sound HIV interventions to mitigate further spread of HIV infection in Borana

    Traditional medicine and HIV/AIDS in Ethiopia: Herbal medicine and faith healing: A review

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    Background: Traditional, complimentary and alternative medicines (TCAMS) are increasingly being promoted by various Sub-Saharan African governments as a promising health resource in the control and amelioration of HIV/AIDS. The accessibility and cultural acceptability of both herbal medicines and faith healing and the scarcity of antiretroviral treatment (ART) in many communities have made them a favorite treatment option for people living with HIV (PLHIV).Objectives: This paper reviews the literature on the utilization and potential contribution of plant medicines and faith healing for treatment of HIV and opportunistic infections in Ethiopia.Methods: The published and unpublished literature on TCAM, faith healing and HIV/AIDS was reviewed from online sources and several bibliographies.Results and Discussion: Several studies indicate that both plant medicines and faith healing are widely used in Ethiopia for the treatment of HIV-related illness due to the long history, prevailing illness perceptions and religious beliefs. Primary phytochemical tests have identified several plant species with anti-HIV, anti-mycobacterial and antiprotozoal properties but their development as safe and effective medicines will require extensive toxicological and pharmacological drug interaction studies. Increasing evidence of positive outcomes of faith healing involving holy water and prayer reported by PLHIV, particularly spiritual and mental benefits, has potential application for chronic patient care but needs further study.Conclusion and Recommendations: Prevailing and evolving indigenous practices indicate the need for the implementation of appropriate policies and guidelines for the development of safe and effective herbal medicines and the integration of traditional medicine into the health services. Several areas requiring further study are identified

    Estimation of Daily Sunshine Duration from Terra and Aqua MODIS Data

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    Some studies have shown that the estimation of global sunshine duration can be done with the help of geostationary satellites because they can record several images of the same location in a day. In this paper, images obtained from the MODIS (Moderate Resolution Imaging Spectroradiometer) sensors of polar orbiting satellites Aqua and Terra were used to estimate daily global sunshine duration for any region in Turkey. A new quadratic correlation between daily mean cloud cover index and relative sunshine duration was also introduced and compared with the linear correlation. Results have shown that polar orbiting satellites can be used for the estimation of sunshine duration. The quadratic model introduced here works better than the linear model especially for the winter months in which very low sunshine duration values were recorded at the ground stations for many days

    Bibliography on HIV/AIDS in Ethiopia and Ethiopians in the Diaspora: The 2013 Update

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    The cetaceans of Guinea, a first check-list of documented species. Scientific Committee document SC/58/O15, International Whaling Commission, May-June 2006, St. Kitts

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    A CMS workshop on West African Cetacea (Conakry, May 2000), called for i.a. ‘carrying out .. inventory of cetacean species; collection, treatment and compilation of data for each state.’ The present paper is a preliminary faunal checklist of cetaceans occurring in Guinea’s EEZ. Information was gleaned from strandings, bycatches, scientific and opportunistic sightings and a literature review. Ten species are included for which supporting voucher material and data were available for examination. These are, three baleen whales: Balaenoptera brydei, Balaenoptera acutorostrata and Megaptera novaeangliae; and seven species of odontocetes: Kogia breviceps, Tursiops truncatus, Sousa teuszii, Stenella frontalis, Delphinus delphis, Steno bredanensis and Globicephala macrorhynchus. Another two species, Physeter macrocephalus and Stenella attenuate were sighted off Guinea but no photographic evidence was obtained. The current account is thought to reflect an incomplete picture of Guinea’s cetacean biodiversity. Future surveys are expected to update and investigate spatial and temporal distribution patterns for each species along Guinea’s coast. A few bycatches landed by artisanal fishers were utilised locally, but there are no signs of any substantial captures. Nonetheless, monitoring should be continued. The set-up of a national reference collection and database is recommended. The population identities of the encountered Atlantic humpback dolphin, minke whale and humpback whale are of particular interest

    Endoscopic ultrasound guided radiofrequency ablation, for pancreatic cystic neoplasms and neuroendocrine tumors

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    AIM: To outline the feasibility, safety, adverse events and early results of endoscopic ultrasound (EUS)-radiofrequency ablation (RFA) in pancreatic neoplasms using a novel probe. METHODS: This is a multi-center, pilot safety feasibility study. The intervention described was radiofrequency ablation (RF) which was applied with an innovative monopolar RF probe (1.2 mm Habib EUS-RFA catheter) placed through a 19 or 22 gauge fine needle aspiration (FNA) needle once FNA was performed in patients with a tumor in the head of the pancreas. The Habib™ EUS-RFA is a 1 Fr wire (0.33 mm, 0.013") with a working length of 190 cm, which can be inserted through the biopsy channel of an echoendoscope. RF power is applied to the electrode at the end of the wire to coagulate tissue in the liver and pancreas. RESULTS: Eight patients [median age of 65 (range 27-82) years; 7 female and 1 male] were recruited in a prospective multicenter trial. Six had a pancreatic cystic neoplasm (four a mucinous cyst, one had intraductal papillary mucinous neoplasm and one a microcystic adenoma) and two had a neuroendocrine tumors (NET) in the head of pancreas. The mean size of the cystic neoplasm and NET were 36.5 mm (SD ± 17.9 mm) and 27.5 mm (SD ± 17.7 mm) respectively. The EUS-RFA was successfully completed in all cases. Among the 6 patients with a cystic neoplasm, post procedure imaging in 3-6 mo showed complete resolution of the cysts in 2 cases, whilst in three more there was a 48.4% reduction [mean pre RF 38.8 mm (SD ± 21.7 mm) vs mean post RF 20 mm (SD ± 17.1 mm)] in size. In regards to the NET patients, there was a change in vascularity and central necrosis after EUS-RFA. No major complications were observed within 48 h of the procedure. Two patients had mild abdominal pain that resolved within 3 d. CONCLUSION: EUS-RFA of pancreatic neoplasms with a novel monopolar RF probe was well tolerated in all cases. Our preliminary data suggest that the procedure is straightforward and safe. The response ranged from complete resolution to a 50% reduction in size

    Production of cornelian cherry (Cornus mas L.) pulp powder by foam-mat drying: analysis of physicochemical and antioxidant properties

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    This is the final version, Available on open access from Springer via the DOI in this recordAvailability of data and materials: Data available within the article or its supplementary materialsCornelian cherry (Cornus mas L.) is a rich source of (poly)phenols such as phenolic acids, flavonoids, and anthocyanins that are known for their bioactivity. This study aimed to enhance the industrial applications of this cherry’s pulp as a potential functional food ingredient. Foam-mat drying was used to produce cherry powder from cherry pulp. The convective drying process was performed at different temperatures (50, 60, 70, and 80°C) to study the effect of drying temperature on the physical properties, flow properties, microstructure, (poly)phenol content, antioxidant properties, and bioaccessibility of foam-dried cherry pulp, in comparison to freeze-dried sample. Different drying temperatures did not affect color properties. The highest gloss was determined at high temperatures (70–80°C). According to the Carr index, the fluidity increased between 18 and 22% as the temperature increased. The total phenolic content was higher at elevated temperatures (70–80°C), yet the anthocyanin content was the highest at 60°C. The flavonoid content was not affected by different drying temperatures, as well as compared to lyophilized samples. The antioxidant activity was higher in samples dried at elevated temperatures, with no significant difference in comparison to lyophilized samples. The bioaccessibility experiment showed that the lyophilized samples had significantly greater bioaccessibility in comparison to the convective dried samples, yet further investigation is required to understand the differences in bioaccessibility and bioavailability of individual polyphenols. Overall, foam-mat drying using a convective drying system could be an economic choice to preserve acceptable amounts of phenolics and antioxidants

    Detection and identification of pathogenic trypanosome species in tsetse flies along the Comoe River in Cote d'Ivoire

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    In order to identify pathogenic trypanosomes responsible for African trypanosomiasis, and to better understand tsetse-trypanosome relationships, surveys were undertaken in three sites located in different eco-climatic areas in Cote d'Ivoire during the dry and rainy seasons. Tsetse flies were caught during five consecutive days using biconical traps, dissected and microscopically examined looking for trypanosome infection. Samples from infected flies were tested by PCR using specific primers for Trypanosoma brucei s.l., T. congolense savannah type, T. congolense forest type and T. vivax. Of 1941 tsetse flies caught including four species, i.e. Glossina palpalis palpalis, G. p. gambiensis, G. tachinoides and G. medicorum, 513 (26%) were dissected and 60 (12%) were found positive by microscopy. Up to 41% of the infections were due to T. congolense savannah type, 30% to T. vivax, 20% to T. congolense forest type and 9% due to T. brucei s.l. All four trypanosome species and subgroups were identified from G. tachinoides and G. p. palpalis, while only two were isolated from G. p. gambiensis (T. brucei s.l., T. congolense savannah type) and G. medicorum (T. congolense forest, savannah types). Mixed infections were found in 25% of cases and all involved T. congolense savannah type with another trypanosome species. The simultaneous occurrence of T. brucei s.l., and tsetse from the palpalis group may suggest that human trypanosomiasis can still be a constraint in these localities, while high rates of T. congolense and T. vivax in the area suggest a potential risk of animal trypanosomiasis in livestock along the Comoe River

    Phenetic and genetic structure of tsetse fly populations (Glossina palpalis palpalis) in southern Ivory Coast

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    Background: Sleeping sickness, transmitted by G. p. palpalis, is known to be present in the Ivory Coast. G. p. palpalis has recently been reported to occur in several places within the town of Abidjan, including: (i) the Banco forest, (ii) the Abobo Adjame University campus and (iii) the zoological park. Could these three places be treated sequentially, as separate tsetse populations, or should they be taken as one area comprising a single, panmictic population? Methods: The amount of gene flow between these places provides strategic information for vector control. It was estimated by the use of both microsatellite DNA and morphometric markers. The idea was to assess the interest of the faster and much less expensive morphometric approach in providing relevant information about population structure. Thus, to detect possible lack of insect exchange between these neighbouring areas of Abidjan, we used both genetic (microsatellite DNA) and phenetic (geometric morphometrics) markers on the same specimens. Using these same markers, we also compared these samples with specimens from a more distant area of south Ivory Coast, the region of Aniassue (186 km north from Abidjan). Results: Neither genetic nor phenetic markers detected significant differentiation between the three Abidjan G. p. palpalis samples. Thus, the null hypothesis of a single panmictic population within the city of Abidjan could not be rejected, suggesting the control strategy should not consider them separately. The markers were also in agreement when comparing G. p. palpalis from Abidjan with those of Aniassue, showing significant divergence between the two sites. Conclusions: Both markers suggested that a successful control of tsetse in Abidjan would require the three Abidjan sites to be considered together, either by deploying control measures simultaneously in all three sites, or by a continuous progression of interventions following for instance the "rolling carpet" principle. To compare the geometry of wing venation of tsetse flies is a cheap and fast technique. Agreement with the microsatellite approach highlights its potential for rapid assessment of population structure

    Retina layer segmentation using kernel graph cuts and continuous max-flow

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    Circular scan Spectral-Domain Optic Coherence Tomography imaging (SD-OCT) is one of the best tools for diagnosis of retinal diseases. This technique provides more comprehensive detail of the retinal morphology and layers around the optic disc nerve head (ONH). Since manual labelling of the retinal layers can be tedious and time consuming, accurate and robust automated segmentation methods are needed to provide the thickness evaluation of these layers in retinal disorder assessments such as glaucoma. The proposed method serves this purpose by performing the segmentation of retinal layers boundaries in circular SD-OCT scans acquired around the ONH. The layers are detected by adapting a graph cut segmentation technique that includes a kernel-induced space and a continuous multiplier based max-flow algorithm. Results from scan images acquired with Spectralis (Heidelberg Engineering, Germany) prove that the proposed method is robust and efficient in detecting the retinal layers boundaries in images. With a mean root-mean-square error (RMSE) of 0.0835 Âą 0.0495 and an average Dice coefficient of 0.9468 Âą 0.0705 pixels for the retinal nerve fibre layer thickness, the proposed method demonstrated effective agreement with manual annotations
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