Experimental biology group: Summaries of Scientific papers

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Die lied in die erediens: Die rol wat dit gespeel het in die Afskeiding in 1859 in Suid-Afrika

The role of hymns in public worship and the influence it had on the Schism in 1859 in South Africa During the Middle Ages congregational singing was replaced by choir singing. Both Luther and Calvin agreed that the members of the congregation should actively participate in the worship service by means of song. Calvin limited congregational songs to the Psalms of the Old Testament. The church in Netherlands followed his example, but added some hymns, excluding the Apostles Creed, that comprises also lyrical parts from Scripture. In 1807 a hymn book was implemented and used in the Netherlands. This was one of the reasons for the Schism which took place in 1834. During 1814 the hymn book was implemented in the Cape resulting in discontent in the border districts. Some discontented people took part in the Great Trek. A congregation mainly consisting of these people was established in Rustenburg in 1859. In this congregation only Psalms were sung during services. Soon Reformed congregations having the same objections regarding hymns came into being in the Free State and the north-eastern Cape Province. For the founder of these congregations, Rev. D. Postma, the singing of free hymns was a mediance matter. For the “Doppers” as the conservative people were called, the singing of Psalms only was a serious matter of principle. Times have changed and the Reformed Churches in South Africa will have to reflect whether it is really a matter of principle to sing Old Testament Psalms only. The suffering, death, resurrection and ascension of Christ should also be celebrated in song. The existing 48 scriptural lyrics do not satisfy these requirements. Free hymns of the other Afrikaans churches will definitely have to be taken into consideration

Totius en die boek Openbaring

Totius and the Book of Revelation In his sermons on the book Revelation, published in 1921, the Afrikaans theologian and poet, Prof. J.D. du Toit, better known under the pseudonym Totius, took the “futurist” view as the principal way to explain this Bible book. Elements of other views like the “historicist view” were also followed, especially in the sermon on the seven churches in Asia Minor, which regarded each church as concerned with later periods in the history of Western Europe. According to Du Toit the scene of the sealing of the servants of God (7:1-8) and of the great multitude mentioned later in the chapter (7:9-17) is set at the end of time. It should, however, be better to interpret chapter 7:1-8 as the church in John's time and the vast crowd of people from every nation as an image of the redeemed in the bliss of heaven. The multitude who comes (present tense) out of the great tribulation are those who died for their faith when Revelation was written. But the article describing the multitude in the original Greek text also seems to indicate the great trouble accompanying the end of things. For Du Toit the prostitute in chapter 17 symbolizes a city, namely Babylon. The harlot, however, had slain a great number of saints who believed in Jesus (17:6). Thus the harlot cannot be identified with Babylon. The city must be Rome, the contemporary representative of the cruel empires which, through the ages have enslaved people by brute force. Rome also killed saints who served Christ. Du Toit’s greatest shortcoming in his explanation of the Book of Revelation was that he did not see that the book Revelation is rooted in a given historical situation

Procedures involving liquid media for detection of bacterial contamination in breweries

The liquid equivalent of universal beer agar, designated universal beer liquid medium, and its beer-free equivalent, universal liquid medium (UL), were equally effective in demonstrating bacterial contamination in 120 of 200 samples from different stages of a commercial brewing process. Growth of the contaminants after 3 days was consistently more luxuriant in the UL medium. A yeast-water substrate medium failed to reveal many contaminants detected with UL in 392 samples from three breweries and revealed only a few not detected with UL. The use of UL and a lactose-peptone medium, with microscope examination of the media for bacterial growth, permitted detection of 93% of the known contaminants compared to 87% detected with UL alone; this combination or universal beer liquid medium plus lactose-peptone medium can therefore be recommended for the detection of bacterial contaminants in brewery samples. Bacterial contamination of pitching yeasts appeared to be a particular problem in the breweries investigated

Opgroeien met epilepsie: de Epilepsie Groei-wijzer

Opgroeien met epilepsie stelt kinderen en jongeren voor extra uitdagingen op hun weg naar zelfstandigheid. Hierdoor bereiken zij minder vaak of later belangrijke mijlpalen in hun ontwikkeling. Een instrument om zelfstandigheid en autonomie bij jongeren met epilepsie te ondersteunen is de Epilepsie Groei-wijzer. In deze bijdrage beschrijven wij dit instrument en de ontwikkeling hiervan

ITS-based transport concepts and location preference: will ITS change Business-as-usual?

Contains fulltext : 46423.pdf (publisher's version ) (Closed access) Contains fulltext : 46423_pre.pdf (preprint version ) (Open Access

Skills for Growing Up-Epilepsy: An exploratory mixed methods study into a communication tool to promote autonomy and empowerment of youth with epilepsy

Introduction: The consequences of having epilepsy seriously hamper the development of autonomy for youth with epilepsy (YWE) and limit their social participation. This study was designed to provide insight into the impact of epilepsy on autonomy and empowerment and to evaluate the use of the Skills for Growing Up (SGU-Epilepsy) communication tool in pediatric epileptic care. Methods: A mixed methods designwas used to examine the impact of epilepsy on autonomy and empowerment and to evaluate the feasibility and use of the SGU-Epilepsy. Six focus groups with YWE and their parents were organized (N=27), and the benefits of the SGU-Epilepsy were evaluated (N=72). Results: Youth with epilepsy struggled with social participation. Beliefs of YWE and their parents on managing daily life and taking medication were not always similar. Parents worried about the passive attitude of YWE, but autonomy ofYWE seemed to be constrained by parents. The SGU-Epilepsy seemed to be feasible. It facilitated the communication on development and empowerment although it was sometimes confronting for parents. Not all YWE were motivated to use and discuss the tool. In the evaluation, no differences in perceived autonomy and empowerment between YWE who used SGU-Epilepsy and received usual care appeared. Conclusion: On the short-term, a beneficial effect of using the SGU-Epilepsy on autonomy and empowerment for YWE and their parents was not shown. The SGU-Epilepsy seemed to be a feasible instrument, however, to address nonmedical issues during pediatric consultations