Management of female infertility is a primary determinant of economic efficiency in the cattle industry. Management factors involved in impacting fertility include identification of females with suboptimal fertility and reducing the period of anestrus, prior to pubescence and after parturition. The use of anti-Müllerian hormone in the identification of females with suboptimal follicular populations allows for selection of females with optimal follicular populations and could reduce infertility resulting from a decrease in the quantity of follicles. A reduction in the period of anestrus also impacts fertility and management strategies that induce an ovulatory response in anestrous females improves fertility. Biostimulation has advanced pubescence in heifers and reduced the length of postpartum anestrus in cows. Advancing the understanding of anti-Müllerian hormone and the biostimulatory effect allows for further assessment of these management factors and their impact on infertility. Improved management of female infertility increases profitability of cattle production.

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A thesis submitted to the Faculty of Engineering and Built Environment, University of the Witwatersrand, in fulfilment of the requirements for the degree Doctor of Philosophy (Materials and Metallurgy) Johannesburg, February 2019 / The first corrosion map of South Africa (SA) was published in 1991. Since then only minor variations have been made to this map. However, due to the lack of differentiation of inland locations, overstatement of the corrosivity of environments, changes in international standards regarding the measurement of corrosive atmospheres, increased industrialisation of SA’s large metropolitan areas, global climate change effects and improved mapping techniques, this chart has become outdated. The present study focused on the development of a new corrosion map for SA, with the emphasis placed on the provision of more detail concerning the atmospheric corrosivity of the Greater Johannesburg Metropolitan Area (GJMA) – SA’s economic heartland. In the study, historical published and unpublished corrosion data for South Africa were assimilated and analysed. The atmospheric corrosivity of the GJMA was also measured using ASTM G116 wire-on-bolt and ISO 9226:1992 open aluminium, zinc and copper wire helix devices, including ISO 9226:2012 flat mild steel and hot-dip galvanised steel coupons. Coated mild steel specimens were also exposed to determine the corrosive effects of the GJMA’s atmosphere on organic materials. The morphologies and chemical compositions of the mild steel corrosion products, using SEM-EDS, FTIR and Raman spectroscopy, as well as pH and water-soluble salt measurement techniques were furthermore investigated, along with correlations between the measured corrosion data, and general meteorological and pollution parameters for the GJMA area. The study showed that the corrosivity of SA’s coastal environments decreases rapidly within the first 150 m from the ocean and that for most inland locations, very low (C1) to potentially high (C4) corrosive conditions may be expected, as per the ISO 9223 rating scheme. High correlations were also found between the first-year corrosion rates of mild steel, hot-dip galvanised steel, zinc, aluminium and copper. Moreover, it was confirmed that the corrosivity of the GJMA is influenced by precipitation, humidity, PM10 and PM2.5 particulate matter, as well as SO2, NO2, NO, CO and O3 levels in the atmosphere, including wind direction and daily temperatures (maximum and minimum). Other factors found to affect the corrosivity of the GJMA’s atmosphere are: elevations above sea and ground level; the presence of vegetation and large water bodies; topography; shielding and shading effects; the occurrence of an El Niño or La Nina event; and acid rain. Moreover, it was established that the GJMA is most corrosive during spring and summer and that at least 90% of the area can be rated Upper-C2 (low to medium) corrosive. The results furthermore revealed high correlations between the ISO 9223 (1992 and 2012) corrosion monitoring devices and that wire-on-bolt (CLIMAT) units are better indicators of the impact of atmospheric pollutants on the 12- month corrosion rate of hot-dip galvanised steel than uncoated steel. A strong linear correlation was also found regarding the average corrosion rate of mild steel with every 20 mg/m2 rise in the concentration of water-soluble salts in the corrosion product. The East Rand of the GJMA rated most corrosive, with corrosion trouble spots identified at Aeroport, Bonaero Park, Brakpan, Chloorkop, Dalpark, Dunnottar, and Nigel. The Kagiso-Randfontein area was the only other area, outside the East Rand, that rated more corrosive. Extrapolations of the long-term corrosion rates of mild steel and hot-dip galvanised steel in the GJMA were additionally made based on logarithmic regressions of the 6-, 12-, 18- and 24-month corrosion data. Finally, geoprocessed (metal specific) corrosion maps were developed for the GJMA, subsequently incorporated into several corrosion maps for SA (also metal specific), to provide better clarity regarding SA’s inland areas. Keywords: Corrosion, atmosphere, South Africa, Greater Johannesburg, inland Metropolitan, wire-on-bolt, CLIMAT, ISO 9223, mapping, pollution, mild steel, hot-dip galvanised steel, aluminium, zinc, copper, coatings / E.K. 2020

This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).

Thesis advisor: Andrew Miller / Despite reform, de facto segregation is still prominent in cities and towns across the country, and schools are no exception. White students are likely to attend schools that are 70% White, Black and Latinx students are likely to attend schools that are at least 50% Black or Latinx. Research has shown that predominantly White schools (>70% White) tend to perpetuate structural racism through tracking, inequitable grading practices, and parents’ opportunity hoarding. Furthermore, students of color in predominantly White schools often experience deficit thinking, racial spotlighting, microaggressions, and isolation. Since true integration of America’s public schools is not likely, it is important to determine how, if at all, school leaders perceive the emergence of anti-racism in predominantly White schools, especially given the disproportionate racial impact of the COVID-19 pandemic and raised consciousness around structural racism. It is also important to identify the conditions that support or constrain anti-racist initiatives in these mostly White spaces. Using qualitative methods, this case study of a predominantly White school district finds that anti-racism in predominantly White schools can be enacted, most notably in the areas of grading practices, leveling, curriculum, and student support programs. However, the findings also demonstrate that resistance from White teachers and parents, combined with a fear of burning teachers out, did not allow for accountability for anti-racist practices, which ultimately slowed the pace of systemic anti-racist change. / Thesis (EdD) — Boston College, 2022. / Submitted to: Boston College. Lynch School of Education. / Discipline: Educational Leadership and Higher Education.

Between World Wars I and II, allied forces girded themselves to quash yet another enemy bent on world conquest: fascism. In England, however, the British fascists set about to save what they saw as a dying empire. In an effort to restore Britain's greatness, British fascism held to fascist principles and doctrine to stem the flow of immigration, which fascists saw as darkening the pure British culture. While many of the British fascists strongly admired Nazi Germany's version of fascism, they were unique in that they forged their solutions from social ills that were distinctly British. British fascists were unabashedly anti-Semitic. They feared a Jewish threat to Britain's economy and culture and sought to counter it on every front. History, according to the British fascists, was rife with conspiracies which threatened the established "order of things." Unfortunately, their fears of conspiracy were so fantastic that their rationale was at times clouded and to their detriment. Foremost in the thinking of British fascists, Britain itself and all things British stood paramount to the exclusion of all else. Only an enormous resurgence of British nationalism would serve to regain Britain's proud heritage and future. Widely held principles of British fascism included direct representation in government for all occupations. All Britons would work in the interest of Britain, placing individual interests secondary to the whole of British culture. British fascism called for all Britons to actively involve themselves in the organic body of the British fascist state. Honor, duty, and loyalty would guide all Britons to a heightened sense of nationalism which would enable the individual to flourish within the fascist state. British fascism offered a sense of greatness to the British people. When all Britons embraced the nationalism of British fascism, pride of country, strength of family, honor of the individual, and the greatness of the British Empire all would be restored.

Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry. Dept. of Orthodontics. 1970. / The present investigation was undertaken to determine an extra-skeletal reference plane and its reliability. The results of this study revealed that it seems possible for an orthodontist to establish an extra-skeletal reference plane, if a specially designed analyzer is used. It has been shown that by using this devise in his determination of a base landmark, an orthodontist can have a high degree of reliability within himself. It also appears likely that the reference plane obtained in this manner by one orthodontist is reproducible, to a high degree of reliability by other orthodontists. A remarkably high reproducibility, as obtained if a group determination of a reference base was done. To the orthodontist, it means that there may be a way of accurately producing a reliable reference plane for static cephalocentric analysis. This could be used to standardize communication among orthodontists.[TRUNCATED]

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