According to Jensen (2000:215), though we talk of the growing digital divide between rich and poor countries, Africa has shown encouraging signs that it is rapidly adopting the Internet and making innovative use of the technology. Nevertheless, the continent is still well behind other developing regions of the world in taking advantage of the information and communication revolution. The main reasons for this are the limited and expensive telecommunication infrastructure, small markets, and lack of skills and awareness. At the end of 1996, just 11 of Africa’s 54 countries had local Internet access, but by February 2000 all of the continent’s countries had access in the capital cities (Jensen 2000:215). Excluding South Africa, the number of computers permanently connected to the Internet in Africa exceeded 10,000 early in 1999 (Jensen 2000:215). By January 2000, the total had increased to about 25,000, which means Africa, with an estimated population of 780 million people, has about as many Internet-connected computers (hosts) as Latvia, which only has a population of 2.5 million (Jensen 2000:215). Measuring the actual number of Internet users is difficult, but figures for the number of dial-up accounts supplied by Internet service providers (ISPs) show that Africa has more than 500,000 subscribers (Jensen 2000:215). Each computer with an Internet or e-mail connection supports an average of three users, a recent study by the UN Economic Commission for Africa (ECA) has found (Jensen 2000:215). This puts current estimates of the number of African Internet users at somewhere around 1.5 million. Most are in South Africa with approximately 1 million (Jensen 2000:215). Apart from the widespread use of Internet for business and entertainment purposes, social networking sites are becoming widely popular in South Africa. Although there has been little academic research on social networking sites in South Africa, there have been a few articles on websites, newspapers, and magazines that have touched on this phenomenon. Social networking sites, particularly Facebook, have become very popular among the adult internet user population, as both business and private applications. BMW South Africa, for example, has a Facebook page where video posts of recent car models and photos of cars are placed. The Facebook page also has a link to the company’s website (www.bmw.co.za) on the profile which takes a user straight to the commercial website. FM Tech (www.fmtech.co.za) is technology industry news and opinion website edited by Duncan McLeod, associate editor at the Financial Mail, South Africa’s top-selling and best-read weekly business, technology and current affairs magazine. McLeod’s article, What SA Internet users searched for in 2008, revealed that “Facebook”, “Cape Town” and “games” are the terms that South African Internet users searched for most often in 2008. Farber (2008) suggests that this is according to the results of US Web search giant Google’s annual “Zeitgeist” survey of the top searches worldwide. Farber also includes the year’s list of fastest-rising search terms which showed an enormous interest in international social networking sites. 1.2 Articles from popular media The following four popular articles describe the nature of social networking sites and its influence on South African users. Article 1: Cathryn Reece (2007) wrote an article entitled Facebook fever grips SA. “Cape Town - South Africans have embraced the internet social networking revolution, with over 50 000 new users signing on to the local Facebook network. The Facebook "South Africa" network currently has over 87 000 members - up from 35 000 in May. When a user registers on the site, they are given a blank profile page which they can update with their personal information and are encouraged to join a network. Members can then search the site for their friends and link up to each other, re-creating their social circle on the internet.

The dissertation is divided into two separate experiments that explore the effects of visual-spatial learning on PSD-95 dorsal hippocampal expression. Specifically, the aim of these studies was to explore the effect of learning an assay, the Hebb-Williams mazes, on the protein expression of PSD-95 in Fmr1 KO mice. PSD-95 is an important scaffolding protein hypothesized to be involved in learning and memory. In cellular models of Fragile X Syndrome it has been shown to be dysregulated but it has never been measured following behavioural learning. Establishment of a deficit using an ecologically valid behavioural assay could lead to the development of novel interventions. Study one employed a subset of the Hebb-Williams mazes of various levels of difficulty to evaluate PSD-95 protein expression in Fmrp intact and Fmr1 KO mice following learning. The results revealed significant increases in PSD-95 protein expression in control runners when compared to Fmr1 KO mice. There was a negative correlation between PSD-95 protein levels and mean total errors on the mazes meaning that as expression was increased, errors were decreased. The goals of study two were to reverse the molecular and behavioural deficits using pharmacological antagonist treatment shown to be effective in cellular models of Fragile X Syndrome. Fmr1 KO mice were treated with either saline or 20 mg/kg of a metabotropic glutamate receptor antagonist, 2-Methyl-6-(phenylethynyl) pyridine (MPEP). Relative to saline treated controls, drug treated Fmr1 KO mice made fewer errors on the same subset of Hebb-Williams mazes used in study one. Latency to complete these mazes did not differ between groups, indicating that MPEP treatment does not adversely affect motor functioning. Protein assessment revealed that PSD-95 was selectively rescued in MPEP treated mice and not saline controls. Similar to study one, a negative correlation between PSD-95 protein levels and mean total errors was observed. When taken together, these studies indicate that protein deficits are associated with a deficit of learning that can be reversed with a selective glutamate receptor antagonist. One of the strengths of the Hebb-Williams mazes is that performance is measurable without floor or ceiling effects, which plague other common behavioural assays. These data further suggest that pharmacological antagonist treatments may be promising in correcting the learning deficits in human Fragile X Syndrome patients.

Denna skriftliga reflektion inom självständigt konstnärligt arbete behandlar klassisk musik och filmmusik som musikformer. I studien analyseras och diskuteras emotionella upplevelser hos musikern vad gäller likheter och skillnader med inriktning mot den typiska romantiska stilen. Syftet är tvåfaldigt: i) att som musiker och violinist i ett konsertsammanhang framföra fyra verk: två från den klassiska romantiska repertoaren, två från filmmusikrepertoaren; ii) att som musiker analysera hur jag interpreterar och upplever klassisk musik och filmmusik. De två spåren täcker in det väsentligaste för att komma fram till ett svar på vad likheterna och skillnaderna innebär för upplevelser av musiken. Studiens resultat påvisar att jag som musiker upplever en skillnad i hur jag instuderar och interpreterar de fyra musikstyckena utifrån om det är klassisk musik eller filmmusik. Klassisk musik upplever jag som mer konventionsstyrd medan filmmusik möjliggör en friare interpretation.

Four commissions considered cathedrals during the nineteenth century. The first two gave them their modern structure: a dean, a small number of stipendiary, residentiary, canons, a larger honorary body. But the principal achievement of these commissions was negative; their emphasis was on the removal of wealth. The second two sought to give new corporate and diocesan life to these ancient bodies. Their aspirations, however, never achieved parliamentary enactment. Thus in the early twentieth century there was will for the reform; the establishment of the Church Assembly presented more auspicious circumstances in which to attempt it. The thesis falls into two related parts. The first traces institutional change across the twentieth-century - change which can be measured by the statutory outcome of the proposals of the three commissions which sat during the century. It will be argued that all three were clearly products of their times, showing the influence of context: of social (and technological) change and of the mind-set of the Church: the first two, reflecting that Church, were conservative and respectful of inheritance and tradition. The last, in an age socially, politically, administratively, ecclesiastically, much changed, was radical. It showed less respect for tradition and a greater susceptibility to external factors: markedly to contemporary management theory. Constitutions regulate a life. The second part explores aspects of that life. All the aspects reviewed helped to form, and were in turn re-formed by, the Commissions and the consequent Measures. First among the subjects examined is the fundamental, defining, relationship, that with the bishop and the diocese. Other chapters discuss the force of external, social, change in shaping and moulding the work and witness of cathedrals, and their methods and standards of pastoral care. The ecumenical movement, though scarcely noticed by the first Commission, was already a factor in the work of a few cathedrals. The 1990s commission assumed, and its Measure provided for, ecumenical involvement. The first commission noted the fact of dissension within cathedrals and between them and their bishops; such troubles were the immediate cause of the last commission; the final chapter examines publicly prominent episodes of dissension. Throughout the century, in their witness the cathedrals responded, sometimes profoundly, to a context of change; their historic constitutions and the independence they conferred enabled the cathedrals to conduct a richly varied public ministry The, frequently decisive, force of personalities, especially of deans and provosts, in producing that ministry, is emphasised. The progress of the parish church cathedrals from, early in the century, scant institutional life to, by its end, parity with their ancient counterparts, is traced. The main text is supported by appendices, including two respectively providing biographical notes on those mentioned in the text, and definitions of specialist terms.

Syftet med detta arbete var att undersöka hur sång kan appliceras i övning och instudering. Genom att sjunga, spela på munstycke och slutligen spela utvalda passager ur Vaughan Willams tubakonsert sats 1 och 2, som är väl använd vid tubaprovspelningar, försökte jag överföra sångaspekter och kvaliteter på mitt tubaspel. Områden jag fokuserade på var klang, användning av olika vokaler och musikaliskt uttryck. För att kunna höra resultatet och eventuella skillnader spelade jag in mig själv. För att utöka min kunskap har jag läst om de fysiologiska aspekterna om sång och vokalljud, Arnold Jacobs metod “Song and Wind” och bakgrund kring Vaughan Williams och hans tubakonsert. Jag kom fram till att sång som instuderingsmetod ger mycket goda resultat främst musikaliskt. Det sätt och de vokaler som var lättast att sjunga på var inte alltid de som var bäst lämpade att använda i tubaspelet

Heft 9 der Zeitschrift Coils of the serpent.

In 1993, American percussionist and composer B. Michael Williams published Four Solos for Frame Drums. This collection is considered the first work written exclusively for solo frame drum in Western notation. Williams primarily modeled his solos around traditional rhythms and techniques from Middle Eastern musical traditions as well as Glen Velez's virtuosic style of playing frame drums. He also drew influence from the music of South India and Sub-Saharan Africa. Williams intentionally combines the aforementioned elements as a means to expose his students and audience members to the music and drumming of these regions. The purpose of this paper is to provide a detailed analysis of select compositions for solo frame drum by B. Michael Williams in order to assist future performers in making well-informed interpretive decisions. The analysis will highlight the compositional style, structural components, technical demands and important performance considerations of four pieces by Williams: Quatrinity, Etude in Arabic Rhythms, Another New Riq and Rhythmic Journey no. 1: (From Conakry to Harare).

Soil erosion was assessed at Camp Williams National Guard Base by creating an erosion risk classification map and comparing the erosion impact of disturbance regimes on different hillslopes. Soil erosion does not appear to be a problem for most of Camp Williams. The Revised Universal Soil Loss Equation was applied using GIS to create a soil erosion risk map for the entire Camp Williams facility. The map indicated where problem areas occurred and showed relative erosion risk, but its lack of quantitative accuracy should be noted. Areas of concern included landscapes with little or no protective vegetation such as roads, abandoned agricultural fields, and sensitive riparian areas where gullies tend to form and expand. The Water Erosion Prediction Project model was used to evaluate the erosion impacts of various disturbances on five study hillslopes. The model did not appear to function well on the Camp Williams study hillslopes because the distribution of infiltration rates could not be satisfactorily represented. However, hydraulic conductivity measurements collected for this task were useful in providing insight into some of the physical processes of erosion. The hydraulic conductivity measurements showed some of the impacts of military activities, grazing, and wildfire on soil properties. Erosion bridges were also used on the five study hillslopes in an attempt to measure soil Joss and deposition. However, the bridges Jacked the capability of measuring the low rates of erosion during the time period set for this experiment. The bridges showed potential for measuring erosion in rills, gullies, highly disturbed areas, or in longer duration experiments.

Fire occurrence and behavior were determined by collecting and analyzing fuel , weather , and fire history ii data. Fuel plots were used to measure average fuel loading by vegetation type and integrated with weather to make worst - case fire behavior prediction s . A fire history was developed using oakbrush (Quercus qaffibelli Nutt . ) sprouts to determine age and the Global Positioning System (GPS) for mapping the burned areas . Average fuel loading was highest in the oakbrush fuel type with 16.8 t/ha , then juniper (Juniperus ost eosoerma Torrey ) with 6 . 72 t/ha , and the lowest was in sagebrush (Artemisia triden~at a Nutt. ) with 4 . 93 t/ha . Fire behavior predictions were similar for all fuel types. The fire rotation for the study area was calculated to be 30 years. The fire history showed the most hectares burned were in the oakbrush fuel type due to fuel loading and horizontal continuity. Prescribed burns and negative fuel breaks were suggested as management alternatives. The effect of fire on deer mouse (Peromyscus maniculatus) density in oakbrush was determined by using a trapping web design with distance sampling techniques . Webs were set in four pairs with one web of each pair being in 7- year- old burned oakbrush and the other web in unburned oakbrush. Variables such as shrub height and litter depth were recorded in order to reduce variance . Trapping occurred in June 1994 with each web set for two consecutive nights using 80 Museum Special snap traps spaced 6 m apart on eight lines . Density estimates were determined by using a computer program called DI STANCE and then analyzed using analysis of variance with a randomized block design . No significant differences between deer mouse densities were detected between burned and unburned oakbrush. Although litter depth and shrub height were both significantly less in burned sites, it did not affect deer mouse density . The conclusion from these result s was that after 7 years oakbrush had recovered to a point that the effect of fire on deer mouse density was negligible.

No description available.