379 research outputs found
Governance Gumbo
...the ultimate goal of great recipes, especially this gumbo, is to be pleasing to the persons who partake of it.
Governance Gumbo
4 c. School Roux2 lb. Leadership Style2 c. Ethic of Care1 c. Ethic of Critique1 c. Ethic of Justice1 tsp. Theory X1 tsp. Theory Y2 T. Theory Z1 c. Public Relation
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Photograph by White Point gas explosion, gumbo?, sand, and rock
Photograph by White Point gas explosion, gumbo?, sand, and roc
An Assessment of Algae and cyanotoxins in small-holder Aquaculture farms in Vhembe, South Africa
MESHWRDepartment of Hydrology and Water ResourcesIn South Africa, inland aquaculture is on the increase, especially among the rural communities. Thus aquaculture is able to provide a source of employment and improve rural incomes. This study assessed algae species and their cyanotoxins in small holder production in Vhembe district, Limpopo, South Africa. Thirteen study sites were selected to assess the algae species and their cyanotoxins. The water samples were collected in four quarters and analysed for water temperature, pH, total dissolved solids, Electrical conductivity, phosphates, nitrates, chlorophyll, cyanobacteria, cyanotoxins, metal species and quality of the water in the fish ponds. In the 1st quarter of the year there was variation in Water Temperature (23.7oC-31.4oC), pH (5.5-9.6), EC (3.82-46.8μS/cm), TDS (2.4-45 mg/L), Phosphate (0.0-1.09mgL-1), Nitrates (0.0-1.00mgL-1), Chlorophyll-a (5.8-11.5mg/m-3). In the 2nd quarter there was variation inwater temperature (22.4-25.0oC), pH (6.6-8.8.9), EC (19.23-21.47μS/cm), TDS (12.5-17.9 mg/L), Phosphate (1.64-1.84mgL-1), Nitrates (1.02-1.88mgL-1), Chlorophyll-a (4.6-15.6mg/m-3). In the 3rd quarter there was variation for water temperature (22.9-25.0oC), pH (7.5-9.1), EC (7.91-293.3μS/cm), TDS (11.7-180.9 mg/L), Phosphate (1.10-1.80mgL-1), Nitrates (1.28-1.84mgL-1),Chlorophyll-a (6.8-15.6mg/m-3). In the 4th quarter there was variation forwater temperature (23.5-30.3), pH (7.1-9.3), EC (18.24-623μS/cm), TDS (23.7-136.4 mg/L), Phosphate (1.45-1.99mgL-1), Nitrates (1.43-1.68mgL-1), Chlorophyll-a (6.6-25.9mg/m-3). The metal content of the fish pond water was variable throughout the year but with moderate levels of Al, Cd, Cr, Mn, Fe, Cu, Zn and Ba were found. The metal Fe, exceeded the DWAF guideline values during this first quarter. The presence of Cd in the fish pond water could be attributed to rainfall eroding the earthen embankments of the fish pond. The results of physico-chemical parameters promotes the growth of cyanobacteria in the fish ponds. Flow cam and SEM were used to identify the cyanobacteria species and most cyanobacteria identified are hazard to human health, fish and other aquatic organisms. Molecular technologies were used to identify cyanotoxins and there was no cyanotoxins detected which was concluded that during collection of water samples no cyanobacteria produced toxins.NR
Guerrilla Snuff
This book by BU Emeritus Professor Marthinus L. Daneel (writing as Mafuranhunzi Gumbo) is made available in OpenBU by permission of its author, who retains all rights to it
The characteristics of preoperative blood tests and their costs at Dr George Mukhari Hospital
Thesis (M. Med.(Anaesthesiology))--University of Limpopo (Medunsa Campus), 2010.In surgical practice, preoperative testing involves a certain number of routine tests, among them chest X-rays, electrocardiography, urine analysis and blood tests. This study sought to characterize routine preoperative blood tests performed at DGMH.
This was a descriptive cross-sectional prospective study of preoperative blood tests conducted at the Medical Laboratory of DGMH. Patient files and their laboratory reports of tests performed during a 2-month period were examined for the extraction and collation of data.
Of the 246 patients’ records included in the analysis, there were 130 male and 116 female patients but the distribution differed based on the age, since in female patients, the majority of them were older than 40 years.
The main findings were that the most commonly done tests at DGMH are hemoglobin, FBC electrolytes, creatinine, glucose and partial prothrombin test. The average number of tests per patient was 3 and their cost on average was R224 per patient. The results of these tests impacted on the management of patients in that 11.4% of elective surgeries were postponed. The tests that were associated with postponement were low values of HB.
In conclusion, hemoglobin was the common laboratory test and the only one that had significant impact as it led to the postponement of planned surgical procedures. This test may be recommended for routine testing before surgical operations
Mobile Press-Register sleeve MP0110905
Ferris Wheel at Mobile Spring Fair and Gumbo Fest / (Civic center parking lot
Single Disk Drill
Patent for a single disk drill for drilling into soft materials ("gumbo, shale, hard clay, and soft rock") without clogging
Detection of host and pathogen biomarkers for Mycobacterium bovis infection in African big cats (lions (Panthera leo), leopards (Panthera pardus), cheetahs (Acinonyx jubatus))
Thesis (PhD)--Stellenbosch University, 2023.ENGLISH ABSTRACT: Animal tuberculosis (animal TB) is a chronic disease caused by infection with Mycobacterium bovis (M. bovis). In South Africa, animal TB affects many of the country’s most iconic wildlife species including leopards (Panthera pardus), African lions (Panthera leo), and cheetahs (Acinonyx jubatus), and therefore poses a risk to both ecotourism and conservation. Although the overall impact on wildlife populations is unknown, this disease has resulted in historic and recent deaths of cheetahs, lions, and leopards in South Africa. The development of speciesspecific immunological tests for diagnosis of animal TB in wild felids has so far been relatively limited. Therefore, the development of accurate antemortem tests for TB screening and diagnosis of M. bovis infection in African big cat populations is urgently required. The overall goal of this study was to identify host and pathogen biomarkers that can be used to detect M. bovis infection in cheetahs, African lions, and leopards. This was achieved by 1) using conventional mycobacterial culture and GeneXpert® MTB/RIF Ultra (GXU) qPCR for confirmation of M. bovis infection, 2) identification of potential cytokines associated with cellmediated immune (CMI) activation and detection of M. bovis sensitization using cheetah, lion, and leopard stimulated whole blood, and 3) evaluation of serological assays for M. bovis detection. Mycobacterium bovis-infected cheetahs, lions, and leopards were identified using conventional mycobacterial culture and compared with rapid results for Mycobacterium tuberculosis complex (MTBC) diagnosis that were obtained using GXU® qPCR assay. A cytokine release assay (CRA) that can distinguish between M. bovis-infected and uninfected cheetahs, leopards, and lions, using commercially available feline cytokine ELISAs with QuantiFERON® -TB Gold Plus (QFT) stimulated plasma, was developed, and partially validated in African lions. Provisional specific interferon gamma release assay (IGRA) cut-off values, for M. bovis detection in lions and cheetahs, were calculated. The findings in this study suggested that a chemokine C-X-C motif ligand 9 (CXCL9) gene expression assay (GEA), previously designed for use in African lions, showed promise as a tool for detection of both general immune activation and M. bovis immune sensitization in leopards. Although a serological test (DPP® ) used for measurement of humoral response in this study was not sensitive, CMI response-based tests, including the tuberculin skin test (TST), showed potential as antemortem screening tests for wild felids and should be further explored. The incorporation of diagnostic tools into surveillance and routine screening of wild felids for health assessment or as translocation candidates will improve TB detection and prompt management changes to prevent spread of infection and enhance disease control, especially in vulnerable populations.AFRIKAANSE OPSOMMING: Dieretuberkulose (diere TB) is 'n chroniese siekte wat veroorsaak word deur infeksie met Mycobacterium bovis (M. bovis). In Suid-Afrika affekteer diere TB baie van die land se mees ikoniese wildspesies, insluitend luiperds (Panthera pardus), leeus (Panthera leo) en jagluiperds (Acinonyx jubatus), en hou dus 'n risiko vir beide ekotoerisme en bewaring. Alhoewel die algehele impak op wildsbevolkings onbekend is, het hierdie siekte gelei tot historiese en onlangse sterftes van jagluiperds, leeus en luiperds in Suid-Afrika. Die ontwikkeling van spesies-spesifieke immunologiese toetse vir die diagnose van diere TB by wilde katte was tot dusver relatief beperk. Daarom word die ontwikkeling van akkurate antemortem toetse vir TB sifting en diagnose van M. bovis-infeksie in Afrika grootkatbevolkings dringend vereis. Die oorhoofse doel van hierdie studie was om gasheer en patogeen biomerkers te identifiseer wat gebruik kan word om M. bovis-infeksie in jagluiperds, leeus en luiperds op te spoor. Dit was bereik deur 1) die gebruik van konvensionele mikobakteriese kultuur en GeneXpert® MTB/RIF Ultra (GXU) qPCR vir bevestiging van M. bovis-infeksie, 2) identifikasie van potensiële sitokiene wat verband hou met sel-gemedieerde immuunaktivering (CMI) en opsporing van M. bovis sensitisering deur gebruik te maak van jagluiperd, leeu en luiperd gestimuleer bloed, en 3) evaluering van serologiese toetse vir M. bovis opsporing. Mycobacterium bovis-geïnfekteerde jagluiperds, leeus en luiperds was geïdentifiseer deur gebruik te maak van konvensionele mikobakteriese kultuur en vergelyk met Mycobacterium tuberculosis kompleks (MTBC) diagnose wat met deur die vinnige GXU® qPCR toets verkry is. 'n Sitokienvrystellingstoets (CRA) wat kan onderskei tussen M. bovis-geïnfekteerde en onbesmette jagluiperds, luiperds en leeus deur gebruik te maak van kommersieel beskikbare kat-sitokienELISA's met QuantiFERON® -TB Gold Plus QFT) gestimuleerde plasma, is ontwikkel en gedeeltelik bekragtig in leeus. Voorlopige spesifieke interferon gamma vrystelling toets (IGRA) afsnywaardes vir M. bovis opsporing in leeus en jagluiperds, is bereken. Die bevindinge in hierdie studie het ondersteun die gebruik van 'n chemokine C-X-C motif ligand 9 (CXCL9) geenuitdrukking-toets (GEA) wat voorheen ontwerp was leeus. Dit het potensiaal, getoon as 'n tegniek vir die opsporing van beide algemene immuunaktivering en M. bovis-immuunsensitisering in luiperds. Alhoewel 'n serologiese toets (DPP® ) wat gebruik is vir die meting van humorale reaksie in hierdie studie nie sensitief was nie, het CMI reaksie gebaseerde toetse, insluitend die tuberkulien vel toets (TST), potensiaal getoon as antemortem siftingstoetse vir wilde diere en moet verder ondersoek word. Die inkorporering van diagnostiese instrumente by die toesig en roetine sifting van wilde diere vir gesondheidsbepaling of as translokasiekandidate sal TB opsporing verbeter en bestuursveranderinge vinnig om verspreiding van infeksie te voorkom, asook om siektebeheer te verbeter, veral in kwesbare bevolkings.Doctorat
Professional development of technology teachers: Does their training meet their needs?
The phenomenological study on which this article is based inquired into Grade 9 Technology teachers’ professional development through workshops on pedagogical content knowledge (PCK) as well as their training needs. The workshops took place in Nelspruit in Mpumalanga, South Africa. Data were gathered from two groups of teachers who attended the workshops on two different days, but who were trained in the same way and were subsequently conveniently selected to participate in the study. Semi-structured focus group interviews were conducted with these teachers and the workshop facilitator was also interviewed. The training manual was scrutinised, the facilitation of the workshops was observed and a follow-up visit was done at two schools where the workshop participants taught. The findings revealed that while the teachers felt that the workshops developed them, such training did not fully meet their needs or expand their PCK repertoires. This study will inform the Mathematics, Science and Technology Academy (MSTA), which is tasked with offering in-service training to subject teachers in the province, about whether the workshops meet the needs of the attendees, thereby possibly necessitating a review ofthe training
Oyster Coverage: Chiastic News As a Reflection of Local Expertise and Economic Concerns
The media, it is argued, are agents of legitimation - for themselves as well as others. Issues and social actors become recognized as important when they appear within the limelight of the news, and reporters are relied upon to correctly choose among the myriads of issues and actors vying for their attention. What happens, though, when an economically important cultural icon becomes a health threat? This is the situation facing news organizations in Southern Louisiana where oysters are both loved and loathed as food. We study newspaper presentations of oysters in Southern Louisiana over a ten-year period to investigate the ways in which this issue was approached. In many of the instances when negative articles appeared, positive statements could be found in the same issue of the newspaper, creating what we refer to as chiastic -- defined as two parallel lines moving in opposite directions -- media presentations. The presence of this type of news reporting is discussed in terms of the economic and cultural importance of the oyster, the economics of newspapers, and the stance of news organizations as cultural authorities.Chiastic, Culture, Economics, News, Oyster
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