Uptake of selected metals in tissues and organs of Clarias gariepinus (sharptooth catfish) from the Vaal River System – Chromium, copper, iron, manganese and zinc

This paper discusses concentrations of 5 essential trace metals (chromium, copper, iron, manganese and zinc) in water, sediment and various fish (C. gariepinus) tissues. With the exception of high Zn concentrations in skin, the highest essential element metal concentrations were generally recorded in liver and gill arch tissues, followed by gill filaments and lastly skin and muscle. This general trend is in agreement with trends reported by other workers. Fe concentrations were found to be significantly higher at the Vaal Dam more often than at the Vaal Barrage. In comparison, Mn concentrations were higher at the Vaal River Barrage more often than at the Vaal Dam. No clear trends emerged with regard to differences between localities for the other metals, or between surveys/seasons for all essential trace metals examined. The likely reason for the lack of distinct trends is the amount of variability observed in tissue metal concentrations within localities and seasons in this study. Such variability is also reflected in current literature and accentuates the importance of both abiotic (e.g. physical water quality variables) and biotic (e.g. host physiological status, general biology and life history traits) factors influencing the concentrations and bioavailability of trace metals

Ekumeniese w�relddiakonaat en wat ons daaruit kan leer

Ecumenical word-wide diaconia and the lessons we can learn from it Since 1948 the involvement of churches in ecumenical diaconia has become one of the most significant trends of modern church history. The most important agent of protestant Christianity in this field is the Commission of Inter-Church Aid, Refugee and World Service of the World Council of Churches (CICARWS). A brief look at the history of CICARWS shows that a shift of emphasis took place from charity to justice, from individual to community and from development to revolutionary changes of social, political and economic structures

Religiee van mense en die verlossende kennis van God

Human religions and the saving knowledge of God: It has become an accepted practice to speak of the relationship of Christianity to other religions in terms of exclusivism, inclusivism and pluralism. These categories are actually not very helpful. The emphasis must not be on the question of excluding or including people from salvation but rather on a saving knowledge of God. Human religions have a limited or distorted knowledge of the supreme Reality. It is only through selfrevelation of God that a true saving knowledge of the ultimate Reality can be attained. This happens through the self-revelation of God in Scripture and especially in the incarnation and saving acts of God in Christ and through the enlightening work of the Holy Spirit.Continued 2001 as 'Verbum et Ecclesia'Spine cut of Journal binding and pages scanned on flatbed EPSON Expression 10000 XL; 400dpi; text/lineart - black and white - stored to Tiff Derivation: Abbyy Fine Reader v.9 work with PNG-format (black and white); Photoshop CS3; Adobe Acrobat v.9 Web display format PDFhttp://explore.up.ac.za/record=b102527

Religieë van mense en die verlossende kennis van God

Human religions and the saving knowledge of God It has become an accepted practice to speak of the relationship of Christianity to other religions in terms of exclusivism, inclusivism and pluralism. These categories are actually not very helpful. The emphasis must not be on the question of excluding or including people from salvation but rather on a saving knowledge of God. Human religions have a limited or distorted knowledge of the supreme Reality. It is only through self-revelation of God that a true saving knowledge of the ultimate Reality can be attained. This happens through the self-revelation of God in Scripture and especially in the incarnation and saving acts of God in Christ and through the enlightening work of the Holy Spirit

Die Departement Godsdiens- en Sendingwetenskap (Afd A), Universiteit van Pretoria, 1917-1978

The Department of Science of Religion and Missiology (Sec A), University of Pretoria, 1917-1978The Transvaal University College began its Faculty of Theology in 1917 in co-operation with the Presbyterian Church and the Nederduitsch Hervormde Kerk. A Presbyterian minister, Prof E MacMillan, lectured from 1917 till 1934. This marked the end of Presbyterian participation. In the next period, 1935-1937, the Department suffered from a controversy between the Nederduitsch Hervormde Kerk and its new partner, the Nederduitsch Hervormde of Gereformeerde Kerk. The issue was solved when the Faculty divided into two sections, Section A for the Nederduitsch Hervormde Kerk and Section B for the Nederduitsch Hervormde of G ereformeerde Kerk. Prof H P Wolmarans was appointed to the chair of Science of Religion (Sec A) in 1938 and served as head of the Department till 1959. He was succeeded by Prof F J van Zyl in 1960, who served till 1978

Persoonlikheidseienskappe as voorspellers van die loopbaansukses van provinsiale verkeersbeamptes.

The effective selection of competent provincial traffic officers has become an urgent necessity for provincial governments. Due to a lack of relevant research on which selection decisions can be based, a study was conducted on a total of 206 respondents from the Free State Provincial Government to determine whether differences exist between the personality profiles of successful and relatively unsuccessful provincial traffic officers. No statistically significant differences were found between the successful and unsuccessful groups on the 16 Personality Factor Questionnaire. Various shortcomings of the study are discussed and recommendations for research suggested

The efficacy of a generic doxycycline tablet in the treatment of canine monocytic ehrlichiosis

The objective of the present study was to evaluate the therapeutic efficacy of a generic doxycycline tablet (DoxyVet®) against Ehrlichia canis infection in dogs. Canine monocytic ehrlichiosis is caused by the bacterium E. canis and transmitted by the brown kennel tick (Rhipicephalus sanguineus). Six disease-free and tick-free dogs were infested with E. canisinfected ticks. Once diagnosed (with polymerase chain reaction [PCR] analysis and platelet counts) as positive for infection, doxycycline tablets were administered orally once a day for 20 consecutive days, at a target dose level of 10 mg/kg. The actual dose administered was calculated as ranging between 10 mg/kg and 11.7 mg/kg. The PCR analysis, 28 days after the first administration of the tablets, failed to detect E. canis in any of the dogs. On Day 56 of the study, four of the dogs were diagnosed with E. canis for the second time and a fifth dog was diagnosed on Day 70. The platelet counts of the sixth dog remained within normal levels and it was discharged from the study on Day 84. Doxycycline tablets were then administered to the remaining five infected dogs for 28 consecutive days. Four of these dogs had no positive PCR results during the following 3 months. The fifth dog was diagnosed with E. canis for the third time 58 days after the last tablets of the second treatment had been administered, after which it was rescue treated (doxycycline for a further 28 days). The results indicate that doxycycline administered in tablet form (DoxyVet®) at 10 mg/kg – 11.7 mg/kg body mass once daily for 28 consecutive days clears most dogs of infection. The importance of a concomitant tick-control programme is therefore stressed

African horse sickness vaccination status correlated with disease outcome in South Africa

African horse sickness (AHS) is one of the economically most important equid diseases in southern Africa, contributing significantly to equine morbidity and mortality. Annual vaccination with the Onderstepoort Biological Products polyvalent live attenuated vaccine has been the mainstay of prevention in South Africa. The study objectives were to determine if there is a significant relationship between multiple variables (vaccination status, number of AHSV [African horse sickness virus] serotypes contracted, clinical presentation, order of vaccine administration, age, sex and mean Ct value) and case outcome. The study population consisted of samples of AHS cases from South Africa submitted to the Veterinary Genetics Laboratory, University of Pretoria, that were confirmed positive by real-time RT-qPCR from 1 September 2017 to 30 June 2019 with a definitive disease outcome. At a univariable level, unvaccinated horses were 8.7 times more likely to die compared with horses that were vaccinated annually. Vaccination status was not statistically significant at a multivariable level, possibly due to insufficient sample size. Annual vaccination was shown to be protective. The pulmonary form of the disease and a lower Ct value had an increased likelihood of non-survival. Vaccination order was significant at a multivariable level (AHS2 vaccine administered first had a higher likelihood of survival). The study confirmed that increased case fatality was not due to vaccine failure but instead due to multiple variables, with an increased population of unvaccinated horses being one of these.Sam Cohen Scholarships.http://www.jsava.co.zaam2024Veterinary Tropical DiseasesSDG-03:Good heatlh and well-bein