368 research outputs found

    Livestock exports from pastoralist areas: An analysis of benefits by wealth group and policy implications

    Get PDF

    Blackness is not a monolith: Deconstructing Black Identities in the Higher Education Setting

    Get PDF
    A Pew research study found that one in five Black people in America are immigrants or are children of immigrants. We see the rise of immigration, but the vast majority of studies still treat Black people as a monolith. Much research on the “Black experience” never specifies the ethnic background of those they are interviewing and when speaking about race it conflates the experiences without giving context to why those experiences are different. Much research uses Black people or African Americans hide behind the clear distinction of those they interview.For my project I am studying, How Black immigrants and Native Black Americans experience higher education differs and why. I highlight three main ideas that occurred regularly within the literature I researched. 1. These ways that American societies view these two groups and how it affects their experience in higher education. 2. The discussion around high admission and attainment rates of Black immigrants in higher education and the low rates of Native Black Americans in higher education. 3. The way both communities individually see themselves and the impact of the first two points on these communities. I review 20 sources on where research about these communities is currently at academically, how well the studies are conducted, and the value of the information that we learn from it. With that information, we can start the conversation and later systematic change, on how to give different groups of Black people the different support that is needed to be successful in higher education

    In vitro antimicrobial activity of fermented spices and Capsicum Frutescens against multi drug resistance clinical isolate and standard reference bacteria

    Get PDF
    Introduction: Food preservation is required to maintain for a long period of time. Traditional organic food preservative, “Datta” is spice mainly made up of Chili Peppers which frequently used in southern and western part of Ethiopia. Datta can be consumed almost with every kind of foods and it is believed as appetizer and antimicrobial agent against food borne pathogen. This study aimed to assess in vitro antimicrobial activity of fermented condiment and Capsicum frutescens against multi drug resistance clinical isolate and standard reference bacteria.Method: Datta samples collected from different level hotels and Capsicum frutescens (Chili peppers) were extractedin different solvents.Agar well diffusion assay was used to determine antimicrobial activity and minimum inhibitory concentration (MIC) and minimum bactericidal concentration was determined by tube dilution method. One way analysis of variant was used in comparison of the finding.Results: Extracted fermented condiment (Datta) sample and Chili Pepper showed antimicrobial activities against multidrug resistant clinical isolate and standard reference bacteria in well diffusion assay. Datta extract showed MIC ranged from 25 mg/L to 66.7 mg/L and MBC ranged from 25 mg/L to 100 mg/L. The Datta and Chili pepper extracts showed high antimicrobial activities against standard Staphylococcus aureus. The water based extract of Datta sample were exhibited significantly low antimicrobial activities (P=0.000) as compared to the other extraction solvents.Conclusion: Water was weak extractor of active compounds having antimicrobial activities. Reference S. aureuswasmore susceptible organism while ATCC Salmonella enteritidis and clinical isolated multi-drug resistant E. coli less susceptible. The traditional use of fermented condiment for food preservation by the local people is supported by this study.Key words: Antimicrobial activity; Chili Pepper extract; Fermented condiment; Minimum bactericidal concentration; Minimum inhibition contractionActivite antimicrobienne en vitro d'epices fermentees et de fruits de capsicume pour la resistance aux medicaments isolate clinique et bacteries de reference standardIntroduction: La conservation des aliments est nĂ©cessaire pour maintenir pendant une longue pĂ©riode de temps. Conservateur de nourriture organiqu et raditionnel, "Datta" est l'Ă©picĂ© compose principalement de Chili Peppers qui frĂ©quemment utilize dans le sud et l'ouest de l'Ethiopie. Datta peu tĂȘtre consommĂ© presque avec toutes sortes d'aliments et on le croit comme un apĂ©ritif et un agent antimicrobien contre l'agent pathogĂšne alimentaire. Cette etude visait Ă  Ă©valuer l'activitĂ© antimicrobienne in vitro du condiment fermentĂ© et Capsicum frutescens contre l'isolement clinique de rĂ©sistance aux mĂ©dicaments multiples et les bactĂ©ries de rĂ©fĂ©rence standard.MĂ©thode: Les Ă©chantillons de Datta prĂ©levĂ©s dans des hĂŽtels de diffĂ©rents niveaux et Capsicum frutescens (Chili Peppers) ont Ă©tĂ© extraits dans diffĂ©rents solvants. Un dosage de diffusion de puits a Ă©tĂ© utilisĂ© pour determiner l'activitĂ© antimicrobienne et la concentration inhibitrice minimale (MIC) et la concentration bactericide minimale a Ă©tĂ© determine par la mĂ©thode de dilution du tube. Une analyse Ă  sens unique de la variante a Ă©tĂ© utilisĂ©e en comparaison de la dĂ©couverte.RĂ©sultats: L'Ă©chantillon extrait de condiments fermentĂ©s (Datta) et Chili Pepper ont montrĂ© des activitĂ©s antimicrobiennes contre l'isolement Clinique rĂ©sistant aux mĂ©dicaments multiples et les bactĂ©ries de rĂ©fĂ©rence standard dans le dosage par diffusion de puits. L'extrait de Datta a montrĂ©que le MIC variait de 25 mg / L Ă  66,7 mg / L et le MBC variait de 25 mg / L Ă  100 mg / L. Les extraits de poisson de Datta et de Chili ont montrĂ© des activitĂ©s antimicrobiennes Ă©levĂ©es contre Staphylococcus aureus standard. L'extrait Ă  base d'eau de l'Ă©chantillon de Datta a montrĂ© des activitĂ©s antimicrobiennes significativement faibles (P = 0,000) par rapport aux autres solvants d'extraction.Conclusion: L'eauĂ©taitun extracteur faible de composes actifs ayant des activitĂ©s antimicrobiennes. RĂ©fĂ©rence S. aureus Ă©tait un organisme plus susceptible tandisque ATCC Salmonella enteritidis et E.coli. E. coli rĂ©sistant aux mĂ©dicaments multiples isolĂ©s Ă©tait moins susceptible. L'utilisation traditionnelle du condiment fermentĂ© pour la conservation des aliments par les populations locales est soutenue par cette Ă©tude.Mots clĂ©s: ActivitĂ©antimicrobienne; Extrait de poivre de piment; Condiment fermentĂ©; Concentration bactĂ©ricide minimum; Contraction minimaled'inhibitio

    Exploratory Survey of Forest Plants in Traditional Treatment of Guinea Worm Infections (GWI)(Dracunculus medinensis Linn): Experiences from Nigeria and Ethiopia.

    Get PDF
    Traditional medicines using forest plants as the major source of raw materials has been the system of Medicare especially in treating guinea worm (Dracunculus medinensis LINN) infections in endemic areas of Africa such as Nigeria and Ethiopia. This system is age long and predates the advents of modern Medicare. With the problems of drug resistances and inability of poor people's access to modern Medicare, traditional medicines could still be the only source of succor. hence the relevance of this study which investigated the forest plants used in the traditional treatment of guinea worm infections (GWI) in some endemic areas of Nigeria and a cross check with the situation in Ethiopia. A total of 92 plant species were recorded representing 68 families. They were, trees (43species), shrubs (18species), herbs (24species) and climbers (7species).Majority of the species were sourced from the wild forests and fallow lands. Different parts of the plants such as roots, leaves, barks, fruits and sometimes whole are prepared and administered in various ways such as oral applications, rubbing, ingestion and therapeutic washing. Twenty nine of these species were found to be available and have similar uses in traditional Medicare in some parts of Ethiopia where water borne diseases are endemic. These findings has posed some challenges to African scientists especially in the area of knowledge and products developments .The conclusion was reached that with current rates of deforestation in Nigeria and Ethiopia, these plants could become ‘lost crops' before their potentials are realized. African Research Review Vol. 1 (3) 2007: pp. 108-12

    Bio-based liquid fuels as a source of renewable energy: A review

    Get PDF
    Limited availability of fossil fuels and their associated environmental impact during combustion remains the primary basis for exploring alternative energy sources such as bio-based liquid fuels. Several feedstocks have been used to produce biofuels for different applications with their own pros and cons. For instance, production of bio-fuels using human food chain raw materials such as corn, soy, peanut, and sugarcane are receiving increased criticism due to the competing demands of the same sources for human consumption as food. However, the non-food biomass in the form of agricultural wastes, municipal wastes, waste vegetable oil, and microbial sources are abundantly available that can be utilized as feedstock for production of biofuels. Because of this reason, most biofuels have been produced using the feedstocks that do not affect the food chain. Thus, in this work, the feedstocks of different generation biofuels and their potential yield and associated greenhouse gas emissions, production technologies are critically surveyed. Moreover, the application of biofuels for different purposes are analyzed and compared with their corresponding conventional fuels. The survey also points out the recent issues and challenges of biofuels with their resolution. The future research directions are suggested to sustain biofuel production

    Pathology, infectious agents and horse- and management-level risk factors associated with signs of respiratory disease in Ethiopian working horses.

    Get PDF
    BACKGROUND:Respiratory disease is a common cause for presentation of working horses to clinics in Ethiopia and a priority concern for owners. OBJECTIVES:Identify risk factors for and association of pathogens with respiratory signs in working horses. Study design Unmatched case-control study. METHODS:Cases were those animals recently coughing (last 7 days) or observed with coughing, nasal discharge or altered respiration at the time of examination. A physical exam and respiratory endoscopy were performed including a tracheal wash sample to detect the presence of pathogens and serology performed on blood. An owner questionnaire was administered. Risk factors were determined using multivariable logistic regression. RESULTS:Data on 108 cases and 93 unmatched control horses were obtained. Case horses often had underlying lower airway pathology and were significantly more likely to have S zooepidemicus detected (OR 12.4, 95% CI 3.6-42.4). There was no evidence of a major role for viral respiratory pathogens. Risk factors included completion of strenuous work (OR 2.7, 95% CI 1.2-6.3), drinking from stagnant water sources (OR 2.3, 95% CI 1.0-5.2) or being housed on a cobbled floor (OR 2.0, 95% CI 1.1-3.8). There were increased odds of respiratory disease in young and old horses in this population. Main limitations Samples for pathogen detection and cytology were only taken from the trachea. CONCLUSION:S zooepidemicus, a common commensal, may play a role in clinical respiratory disease in this population
    • 

    corecore