There is an as yet unacknowledged and incomparable contribution to the philosophical debates about know-how to be found in the writings of Ludwig Wittgenstein. It is sourced in his investigations into knowledge and certainty in On Certainty, though it is not limited to these late passages. Understanding the ramifications of this putative contribution (even if one does not agree with it) highlights the extent to which (i) there is now a new range of issues pertaining to know-how which no future philosophical consideration of the topic can ignore, except on pain of failing to engage comprehensively with the subject; (ii) the topic of know-how has been inappropriately marginalised by naturalized epistemology, and may well be as central to epistemology as the propositional knowledge which currently dominates epistemology’s attention; and (iii) any engagement with these potential Wittgensteinian contributions will need to be conducted in tandem with a reflection on the meta-philosophy of epistemology, since their potential impact extends to epistemology’s main methodology, i.e., naturalized reflective equilibrium. These three conclusions, together with a diagnosis of where and why all the current intellectualist accounts of know-how are either internally inconsistent, or irreconcilably flawed on their own terms, provide the motivation and the opportunity for a New Epistemology of Know-How. These conclusions established, I offer one possible Wittgensteinian-orientated version of the New Epistemology of Know-How, providing the first example of a non-naturalized philosophical approach to the topic since Gilbert Ryle.

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The thermodynamic properties of chloride, nitrate and nitrite AFm hydrates have been determined. Investigations of solid solutions and thermodynamic calculations on the influence of these anions on mineralogical changes in cement paste were performed and compared with experiments. To calculate volume changes, densities of principal crystalline phases occurring in cement were critically assessed and tabulated, in some cases with addition of new data. Database was obtained by calculating densities from crystallographic data and unit cell contents. In hydrated cements, anion sites in AFm phase are potentially occupied by OH, SO₄ and CO₃ ions. C1, NO₃ or NO₂ ions readily displace hydroxide, sulfate and carbonate in the AFm structures. Nitrates and nitrites do not have ability to displace chloride from the Friedel’s salt (C1-AFm) though. The binding power of AFm for nitrite/nitrate/chloride was calculated and confirmed experimentally at 25°C. It was observed that presence of chloride, nitrate or nitrite alters the AFm/Aft balance and thereby affect the specific volume of paste solids. It was found that the success of nitrite as a corrosion inhibitor for protection of embedded steel arises from its “smart” behaviour. AFm normally stores and sequesters nitrite. If chloride ingress occurs in service, the AFm undergoes ion exchange, gaining chloride and forming Friedel’s salt, while releasing soluble nitrite ions to the pore fluid. As a result, the aqueous ratio of [NO₂^-]/[C1^-] increases and remains within the passivation range for steel.

Research report: Faculty of Health Sciences / ABSTRACT Labour induction in an underresourced environment poses a tremendous challenge. While labour induction is a common obstetric procedure, it poses potential hazards for mother and fetus. This is largely dependent on method and agent used and can be expensive on limited resources because of high purchase prices, refrigerated storage, monitoring equipment and manpower. Misoprostol is a unique anti-ulcer agent that has good properties as an induction agent, but as yet not fully evaluated. It is relatively cheap, easily available, simple to store and has a long shelf life, and would amount to considerable cost saving in an underresourced setting if it were proven to be effective and safe for induction of labour. A simple reliable method of administration and appropriate dosage regimen of misoprostol for the purposes of induction of labour is needed. This study was undertaken in two phases; Part A. The clinical trial where an oral misoprostol suspension was given in a stepwise manner for the induction of labour alone or in combination with an inexpensive mechanical method (Foley catheter bulb) is compared with the “standard” method of induction i.e. dinoprostone 2 mg gel in a randomized controlled trial. Altogether 750 patients (250 in each arm) were recruited. Part B. (a) In vitro study to verify if misoprostol has a direct stimulatory effect on gut smooth muscle similar to sihlambezo.1 There is an increase in the incidence of meconium stained liquor in women who have taken sihlambezo or castor oil and misoprostol.2 It is postulated that misoprostol crosses the placenta and stimulates foetal bowel activity directly rather than as a result of asphyxia caused by excessive uterine contractions due to misoprostol. Strips of rat uterine and intestinal smooth muscle were mounted on a strain gauge with a chart recorder in a physiological bath as was done in the Pharmacology department for the original sihlambezo studies. The model was perfused with doubling concentrations of each test substance, and the concentration noted at which the first uterine muscle and the first bowel muscle activity was detected. The test substances were: #1; prostaglandin E2 (Dinoprostone) #1; oxytocin (Syntocinon) #1; misoprostol freshly dissolved in water #1; misoprostol freshly dissolved in a weak hydrochloric acid solution to approximate stomach content pH #1; misoprostol dissolved in water and stored for 2 hours, 6 hours, 24 hours and 1 year. For each substance, the ratio between the minimum stimulatory concentration for uterine to bowel smooth muscle was calculated, and these ratios compared between substances. The absolute minimum stimulatory concentrations were compared between the different misoprostol preparations to determine the effects of storage and acidification. (b) In vitro study to find out if misoprostol dissolved in water is stable and over what duration of time. This has practical importance, because if it is unstable, it may imply that a fresh sample has to be prepared each time the induction agent is given, and this may be several times per patient per induction. This would escalate the cost of the drug, especially in an underresourced setting such as ours, and would mean more manpower i.e. nursing staff, would be required for each case of induction. We also wanted to establish if acidification of the preparation would affect misoprostol stability as was implied to happen when misoprostol is given vaginally3. References 1 Mitri F, Hofmeyr GJ, van Gelderen CJ. Meconium during labor, self medication and other associations. S Afr Med J 1987: 71: 431-433. 2 Hofmeyr GJ, Gulmezoglu AM. Vaginal misoprostol for cervical ripening and labor induction in late pregnancy (Cochrane Review). In: The Cochrane Library, Issue 3, 1999. Oxford: Update Software. 3 Gunalp S, Bildirici I. The effect of vaginal pH on the efficacy of vaginal misoprostol for induction of labour. Acta Obstet Gynaecol Scand 2000; 79(4): 283-5.

Student Number : 9206749J - PhD thesis - School of Mathematics - Faculty of Science / For right near-rings the left representation has always been considered the natural one. A study of right representation for right distributively generated (d.g.) near-rings was initiated by Rahbari and this work is extended here to introduce radical-like objects in the near-ring R using right R-groups. The right radicals rJ0(R), rJ1/2(R) and rJ2(R) are defined as counterparts of the left radicals J0(R), J1/2(R) and J2(R) respectively, and their properties are discussed. Of particular interest are the relationships between the left and right radicals. It is shown for example that for all finite d.g. near-rings R with identity, J2(R) = rJ0(R) = rJ1/2(R) = rJ2(R). A right anti-radical, rSoi(R), is defined for d.g. near-rings with identity, using a construction that is analogous to that of the (left) socle-ideal, Soi(R). In particular, it is shown that for finite d.g. near-rings with identity, an ideal A is contained in rSoi(R) if and only if A \ J2(R) = (0). The relationship between the left and right socle-ideals is investigated, and it is established that rSoi(R) #18; Soi(R) for d.g. near-rings with identity and satisfying the descending chain condition for left R-subgroups.

A dissertation presented in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Technikon Natal, 2000. / The literature shows neck pain, including cervical facet syndrome, to be a common problem. It also provides evidence that inflammation plays a role in cervical facet pathology. Prescription of nonsteroidal anti-inflammatory drugs (NSAIDs) is the first line treatment of allopathic physicians for neck pain. Traumeel S is a complex of homoeopathic remedies indicated in a variety of anti-inflammatory, traumatic and degenerative disorders. It has been clinically shown that Traumeel S is effective in the treatment of inflammation. There is a paucity of clinical research into the treatment of acute neck pain, including cervical facet syndrome, with antiinflammatory agents. The aim of this study was to compare the relative effectiveness of piroxicam, an NSAID, with Traumeel S in the treatment of acute cervical facet syndrome. The study was a double-blind, comparative, clinical trial. Fifty consecutive patients complying with all inclusion criteria were randomly assigned to either the Traumeel S group or the piroxicam group. Each patient in the NSAID group received 40 mg of piroxicam per day for the first two days and 20 mg per day for the following 5 days. The Traumeel S group received the same dosage of placebo piroxicam capsules and 3 Traumeel S tablets in crushed form, per day. Placebo Traumeel Stablets, also in crushed form, were taken 3 times a day by the NSAID group to facilitate blinding. III Patients were assessed on days 1, 3 and 7 of the trial. Subjective assessment involved two questionnaires: the CMCC Neck Disability Index, and the NRS-101 / M

The cytochromes P450 (CYPs), epoxide hydrolases (EHs) and glutathione S-transferases (GSTs) are three of the major families of enzymes involved in the metabolism of xenobiotics in the human body. Immunohistochemical analysis revealed a high frequency of expression of xenobiotic metabolising enzymes in all tumour types studied, in contrast to corresponding normal tissue which displayed only low levels of expression. Further examination of the CYP1 family was carried out by immunoblot analysis. All breast tumours studied were found to express CYP1B1, and not CYP1A1 or CYP1A2. Moreover, CYP1B1 was identified in a number of kidney tumours but not in corresponding normal kidney, indicating that CYP1B1 may be a tumour-specific form of CYP, RT-PCR, in combination with restriction digestion and DNA sequencing, was used to identify CYP mRNA species present in several tumour types. Although CYP1A1 mRNA was identified in breast carcinomas, CYP1B1 was found to be the most frequently expressed form of the CYP1 family in this tissue. CYP3A mRNA was also displayed by several breast tumours, and demonstrated by sequencing to be CYP3A5. A similar situation to breast tumours was observed in tumours of the gastro-intestinal and urinary tracts, with CYP1B1 being the most frequently expressed form of the CYP1 family, and only a small number of samples displaying evidence of CYP1A mRNA. The effects of the expression of xenobiotic metabolising enzymes in tumours may be complex, and depend upon the relative amounts of active protein present, but it is likely that they will exert an influence on both the development of carcinogenesis and the anti-cancer drug resistance of tumours.

A cursory review of the extant literature on race, ethnicity and youth culture reveals a burgeoning amount of social science research that investigates the ethnic identities of minority groups. Yet to date, we still know very little about the corresponding cultural identities of the ethnic majority and who they are in these times of global change and economic disharmony. This thesis aims to address this imbalance by exploring the meaning of white ethnicity in young people's lives. It draws upon historical, subcultural and ethnographic methods of data collection to ask the question, how do white youth 'do' whiteness in the present English post-imperial moment. By making lucid the 'practice' of whiteness, the thesis Must, ates the varied and contingent enactment of white identities by young people. It is argued that a new appraisal of white, Anglo-ethnicities is presently required if young people are to be sufficiently equipped for dealing with the 'new times' of contemporary multi-ethnic Britain. The thesis implodes the monolithic assumption of whiteness as a hermetically sealed ethnic category to investigate the complex, multiple and fragmented experiences entailed when exhibiting white cultural identities. Moreover, the evidence suggests that a failure to connect with white ethnicities may only serve to bolster youthful allegiances to a xenophobic white, English nationalism. Instead, the research calls for a critical engagement with white, English ethnicities in order to splice the social immediacy of whiteness, racism and nationalism in young people's lives. In this respect the study aims to explore the possibilities available for a positive white, youthful identity unencumbered by the burden of racism and nationalism. As such, the thesis explores the 'making' and 'unmaking' of whiteness and considers the possibilities for new white ethnicities in the West Midlands and Tyneside conurbation of England.

In 1943, Littlewood and Offord proved the first anti-concentration result for sums of independent random variables. Their result has since then been strengthened and generalised by generations of researchers, with applications in several areas of mathematics. In this paper, we present the first non-abelian analogue of the Littlewood Offord result, a sharp anti-concentration inequality for products of independent random variables. (C) 2016 Elsevier Inc. All rights reserved.

This thesis describes the history surrounding Silas Wright and the anti-rent agitation in New York during the 1840's.