Background and Aims The accurate differentiation between a delayed pharyngeal swallow (sensory impairment) and premature spillage secondary to poor oro-lingual control (motor impairment) is essential to effective dysphagia management. However both physiologic abnormalities result in an identical radiographic sign, that of pre-swallow pooling of the bolus in the pharynx. The dysphagia literature does not provide satisfactory guidelines for making this distinction on videofluoroscopy. The purpose of this study was to assess the validity of a three-part rating scale for differentiating between these two impairments. Methods Videofluoroscopy was used to evaluate the swallowing of 29 participants presenting with dysphagia following stroke. Sensory thresholds for these participants were established by electrical stimulation of the anterior faucial pillars. The videofluoroscopic swallowing studies were analysed using the three-part rating scale and results from this were compared to sensory thresholds using Pearson's product moment correlation. Results There was no significant correlation between the three-part criteria and sensory thresholds. Inter-rater reliability for some measures was poor. Conclusions The three-part criteria was not shown to be a valid measure for differentiating between delayed pharyngeal swallow and premature spillage secondary to poor oro-lingual control. Possible explanations for these findings are discussed, including the relevance of faucial pillar sensation to swallowing.

The dissertation examines how changes in the race, gender and age composition of poverty over the past twenty years are linked to the unique experiences of particular birth cohorts. Demographer Richard Easterlin argues that generations born between 1944 and 1963 (the 'baby boom') face exceptional labor market competition and economic vulnerability due to their large numbers. Extending this theory, the central question of the dissertation is: Have families headed by the baby boom generation been more likely to be poor in the 1970s and 1980s compared to families headed by generations born prior to the baby boom? The findings indicate that among whites, the answer is clearly 'yes.' For African Americans, the answer appears to be 'no.' Results consistently show that the risk of poverty has been increasing with each successive generation of white family born since 1944. On the other hand, there is no evidence that black families headed by an individual born during the baby boom are more likely to be poor than those headed by previous generations. For both races, however, the most striking finding concerns the generation which was born after the baby boom. White and black families headed by adults born since 1964 are more likely to be poor compared to families headed by the older generations. The cohort effects on poverty are net of family structure, age of the family head, and period. The effects also persist controlling for employment variables which reflect labor market competition. Hypotheses about demographic trends in poverty from 1967 to 1987 are tested using multivariate analyses of a cross-sectional dataset (the Current Population Survey) and a longitudinal dataset (the Panel Study of Income Dynamics). Log-linear analyses of the Current Population Survey decompose the effects of family structure, age, period and cohort on poverty for all families as well as families headed by women. Discrete-time event history analyses of the PSID are used to model poverty among all families in any given year between 1969 and 1987. The dynamics of poverty are further examined in comparisons of nested multinomial logistic regression models of poverty entrances and exits among wives and female-headed families.

This study focused on the development of the Portable Practical Educational Preparation process from its inception in 1967 through fiscal 1981, and the historical-organizational phases it passed through as it evolved into its present configuration. The history of this unique organization, serving the migrant and rural poor in Arizona, was traced. PPEP, Inc, as a non-profit community-based organization whose fundamental philosophy is self-help, has been involved in many social and educational missions. Over the time period to be covered by this investigation, PPEP has served some 55,000 individuals in such diverse areas as adult basic education, classroom training, on-the-job training, social services, and self-help community projects. PPEP, Inc. has developed from an obscure beginning in a school on wheels, "La Tortuga", a converted 1957 Chevrolet 35-passenger bus, to Arizona's largest multi-funded non-profit service agency whose practical achievements have drawn international attention. Today, a comprehensive umbrella of services to low-income rural people has been realized through a network of community-based aides with professional and technical support staff. The PPEP philosophy includes the following: (1) To involve those who are less fortunate in carrying out meaningful programs to eliminate rural poverty; (2) To help overcome the problems faced by rural people by mobilizing public and private resources in support of these programs; (3) To plan, coordinate and evaluate both short- and long-range strategies for overcoming poverty and underdevelopment in rural communities.

<p>This study examines how rabbinic texts from the land of Israel explain and respond to poverty. Through this investigation, I also analyze images of the poor in this literature, asking whether the rabbis considered poor persons to be full participants in communal religious life. Within the context of rabbinic almsgiving, this study describes how Palestinian rabbis negotiated both the biblical commands to care for the poor and Greco-Roman notions of hierarchy, benefaction and patronage. </p><p> The sources at the heart of this study are Tannaitic texts: the Mishnah, the Tosefta and Tannaitic midrashim; and Amoraic texts: the Yerushalmi (Palestinian Talmud) and the classical Amoraic Midrashim - Genesis Rabbah, Leviticus Rabbah and Pesiqta de Rab Kahana. Other texts such as Babylonian Talmud, non-rabbinic and non-Jewish texts are included in this study only when they are able to shed light on the texts mentioned above. In reading rabbinic texts, I pay close attention to several textual features: distinctions between Tannaitic and Amoraic compositions, as well as between rabbinic texts from the land of Israel and the Babylonian Talmud, and evidence of texts that were influenced by the Babylonian Talmud. This method of careful assessment of texts according to their time of composition and geographic origin forms the basis of this investigation. </p><p>The investigation yields several key findings: </p><p>I suggest various factors that shaped Palestinian rabbinic approaches to poverty and almsgiving, including: the biblical heritage, the Greco-Roman and Byzantine environments, the diverse socio-economic status of the rabbis, and their adherence to "measure for measure" as a key hermeneutic principle. </p><p>The study also portrays how the rabbinic charitable system evolved as an expansion of the biblical framework and through engagement with Greco-Roman notions and practices. This unique system for supporting the poor shows evidence of the adoption of select Greco-Roman customs and views, as well as the rejection of other aspects of its hegemonic patterns. We have seen that the language of patronage is absent from the Mishnah's articulation of the rabbinic charitable model. </p><p>Several of the texts analyzed in this study indicate that, for the rabbis, the poor were not necessarily outsiders. Following the main stream of biblical thinking, where the ordinary poor are rarely considered sinners who bear responsibility for their abject situation, Palestinian rabbinic texts seldom link ordinary poverty to sinful behavior. In these texts, the poor are not presented as passive recipients of gifts and support, but as independent agents who are responsible for their conduct. Moreover, rabbinic teachings about support for the poor reveal not only provisions for basic needs such as food, clothing and shelter but also attention to the dignity and the feelings of the poor, as well as their physical safety and the value of their time.</p> / Dissertation

Rural people in South Africal/KwaZulu-Natal makes up a large portion of the total population. They depend on a wide range of activities for living. Besides farming, they also engage in petty trade and wage work in towns and cities. Pensions (public welfare) and remittances also contribute a share to the household budget. Total cash earnings, however, are not enough to enable the majority of rural residents to escape poverty. This study attempts to present a case that the agriculture sector (farming) could contribute more towards improving the living conditions of these people. The argument centers on two facts: the fact that KwaZulu-Natal enjoys a plenty of agricultural natural resources and the second is that farming activity as a sector has certain characteristics worthy of consideration. Findings indicate two things: it establishes the low (measured) income flow from agriculture arrived at by previous studies but at the same time points out to the expansion in farming activities. Comparatively, income derived from farming still compares poorly with others as it was five years ago (1993-1998). The second point which may appear odd is that, consistent with findings by other sources, the number of people or households practicing farming is steadily increasing over time in contrast to other activities such as informal sector, migrant labor and income sources such as remittances. The study uses these facts and others to prove that the sector represents the central activity among the various components that constitute the livelihood system and that it has the potential to contribute more livelihoods as well as playing a lead role for the development of rural economy. The study recognizes the large magnitude of resources whether human or physical required and the constraints to tackle for realizing this but argues that in the absence of any realistic and feasible alternative, agriculture represents the second best route to poverty reduction in rural KwaZulu-Natal. It is also noted that the smallholder strategy in the short term can at best achieve an adequate level of household food security against hunger and malnutrition and may initiate a limited community level food and other farming related market transactions and employment. The study concludes with a number of recommendations deemed necessary to help rural producers enhance their productivity and thus livelihoods generated from the agriculture sector. / Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2008.

As developing India faces rapid urbanization, the provision of sufficient infrastructure facilities to the informal settlers remains a major challenge. Pune is a second tier city in the state of Maharashtra which is transforming itself into a metropolitan city. The research is an attempt to better understand the existence of slums, explore and suggest empowerment opportunities to improve the living conditions of an informal settlement dweller. It questions the scope and limitations of the architectural profession specific to the responsibilities of architects towards the impoverished people within the society. This study argues and advocates the need to understand and respond accordingly to the needs of the people who lack access to resources. As an attempt to better understand this perspective, the study takes a closer look at the works and philosophies of Dr. Wes Janz, Dr. Nihal Perera, Prof. Hector LaSala, Lebbeus Woods, Ar. Pratima Joshi, Prof. Nabeel Hamdi, and Robert Neuwirth. Also the research explains the efforts of several non profit organizations like School on Wheels (Indianapolis), Second Helpings (Indianapolis), Hamara Footpath (Mumbai, India), and MicroPlace which work towards providing better living conditions to disadvantaged people. The study concludes with a proposal for a Non Governmental Organization in Pune, India that will provide the slum dwellers access to education, the internet, and monetary resources which will lead towards their enablement. / Paradigm shift -- The naked truth -- Generations of social exile -- Do we really know slums? -- Existence of Pune slums -- Architectural education in India -- Implications of development -- Agents of change -- Are we well equipped as professionals? -- Exploring various forms of empowerment -- Proposal for an NGO. / Department of Architecture

The discovery of the Spite plateau in the abundances of 7Li for metal-poor stars led to the determination of an observationally deduced primordial lithium abundance. However, with the determination of the baryon density, Omega_B_h^2, from the Wilkinson Microwave Anisotropy Probe (WMAP) data, a discrepancy arose between observationally determined and theoretically determined abundances of 7Li. This is what has become known as the “lithium problem”. Of all the uncertain factors in determining a stellar Li abundance, the effective temperature is the most important. This thesis is concerned with determining an accurate effective temperature scale for metal-poor halo dwarfs, paying specific attention to eliminating any possible systematic errors. This is done by utilising the exponential term, Chi/T, of the Boltzmann equation. Two assumptions are adopted; firstly the simplifying assumptions of local thermodynamic equilibrium (LTE), and secondly the more sophisticated techniques of non-local thermodynamic equilibrium (NLTE). The temperature scales are compared to others derived using different techniques; a photometric scale, where I find comparable Teff in LTE and hotter temperatures by an average of ~ 150 K in NLTE; a scale derived using Balmer lines, for which I have comparable values in LTE and hotter Teff values, by typically 110 K – 160 K, in NLTE; and finally a scale derived using an infrared flux method (IRFM). Here I find their Teff values are hotter by ~ 250 K for LTE and ~ 190 K in NLTE. Lithium abundances are then calculated for the program stars and a mean Li abundance is derived. I find values ranging from A(Li) = 2.10 dex – 2.16 dex with the LTE scales and A(Li) = 2.19 dex – 2.21 dex for the NLTE scales. These mean Li abundances are compared to other observationally deduced abundances, for which I find comparable results in LTE and higher values in NLTE, and to the WMAP + big bang nucleosynthesis calculated Li abundance. I find that my new values are still considerably lower than the WMAP value and are therefore unable to reconcile the lithium problem. Second to this primary investigation, I use Ti as an independent test of the derived Teff values and log g’s. I find that Ti is not a useful constraint on the temperatures or, therefore, on the lithium problem. I also assess the impact of the new Teff scales on the different models of Galactic chemical evolution (GCE), comparing newly calculated abundances with GCE determined abundances. It was found that trends exist in several of the elements; however, these were not statistically relevant. Also a larger degree of scatter was found in the abundances compared to the Arnone et al. (2005). This scatter was not to the degree found in the Argast et al. (2000). Reasons for the differences have been discussed.

The principal theory concerning the origin of the elements heavier than the Fe-peak, such as Ba, strongly suggest that for old, metal-poor environments, the rapid (r-) process is the most likely path taken in their synthesis, while the slow (s-) process becomes more substantial in younger, more metal-rich stellar populations. In this work I test this theory by evaluating the isotope ratios of Ba. It is understood that Ba consists of seven stable isotopes, five of which are synthesised by the two neutron-capture processes. The two odd isotopes, 135,137Ba, as well as 138Ba are synthesised via both the r- and s-processes while two of the even isotopes, 134,136Ba are synthesised via the s-process only. The relative contribution of the r- and s-process to these isotopes can be understood via nucleosynthesis calculations and is described using the parameter fodd, where fodd = [N (135Ba) + N (137Ba)] /N (Ba). Low values of fodd (~0.11) indicate an s-process regime, while high values of fodd (~0.46) indicate an r-process regime. In the Ba II 4554 A line the even isotopes lie close to the line centre, while the odd isotopes, which are hyperfine split because of their non-zero nuclear spin, lie in the wings of the line. From an analysis of the line profile shape, one can determine whether Ba has been synthesised primarily through the r-process or s-process; a broad, asymmetric line would indicate a high r-process contribution, while a line with a deeper core and shallower wings would indicate a high s-process contribution. Using the radiative transfer code ATLAS, which assumes local thermodynamic equilibrium (LTE) and employs 1-dimensional (1D) KURUCZ06 model atmospheres, I synthesised line profiles for six metal-poor stars: HD140283, HD122563, HD88609, HD84937, BD-04 3208 and BD+26 3578 - for a range of isotope ratios. All six are of sufficiently low metallicity that Ba was expected to have an r-process origin. These were fit to high resolution (R\equiv \lamda/\Delta\lamda = 90 000 - 95 000), high signal-to-noise to the Ba II 4554 A line which has multiple components. In the first test, synthetic spectra were computed using the non local thermodynamic equilibrium (NLTE) radiative transfer code MULTI. The synthetic line profiles were fit to a number of lines in HD140283. Although this technique might have improved the fit in the line core, it was found that such a treatment did not improve upon fitting errors associated with the best fit 1D LTE synthetic profiles. The second test used a 3-dimensional (3D) radiative transfer code (LINFOR3D) that employed 3D, time-dependent atmospheres produced with CO5BOLD. The 3D synthetic pro les were fit to a selection of Fe lines and improvements over the poor fits produced by the 1D LTE synthesis were seen. It was found that the 3D synthesis could almost completely reproduce the line asymmetries seen in the observed stellar spectrum. This result suggests that further work to refine the 3D calculations and synthesis code would be valuable.

This thesis studies the social history of the poor in Bulawayo, the second largest city in Zimbabwe, between 1960 and 2005. This is accomplished by focusing on the housing and unemployment crises they faced and the manifest reluctance of authorities to either provide enough housing or to accept mushrooming informal housing and economic activities in response to these acute shortages. I attempt to highlight the fragility of the poor’s claim to the right to permanent urban residency emphasizing inadequate state funding and poverty and continuities in some discourses from colonial to the post colonial era as factors responsible for spreading and sustaining the discrimination against low income earners in the city. These included authorities’ perceptions that all Africans belonged to rural areas, have access to land, and that low income Africans were immoral and unclean. While these perceptions tended to be fuelled by the racial divide between whites and blacks during the colonial period, class and gender dynamics among Africans crisscrossed that racial divide. After independence, while these perceptions were still alive, central government policy ambitions and failures were instrumental in influencing the welfare and fate of the urban masses and their relations with the former middle class Africans and nationalist leaders who assumed power in 1980. It becomes clear that there was a misunderstanding by authorities on how most of the rural land was not able to support some families because of infertility or lack of resources to successfully till the land by most some families. The overall conclusion is that poor people’s rights to permanent residency were elusive up to 2005 and their living and survival space has been continuing to shrink in the city.

<strong>Background and objectives:</strong> The incidence of preterm birth (PTB), and the extent to which it results in perinatal mortality in sub-Saharan Africa (sSA) is unclear, partly because reliable estimates of gestational age (GA) at birth are lacking. This research: 1) Describes how clinical and ultrasound (US) estimates of gestational age (GA) influence PTB rates and perinatal mortality amongst a population in Kilifi, Kenya; 2) Implements a novel PTB classification system as proof of concept that such systems are feasible in low-income settings, and 3) Presents two novel approaches for estimating GA for women presenting >24 weeks’ gestation. <strong>Methods:</strong> Objectives 1) and 2) used a perinatal surveillance platform developed at the KEMRI/Wellcome Trust Research Programme in Kilifi, Kenya. Ultrasound (US) was offered for GA estimation in women ≤24 weeks’ gestation clinically. To achieve objective 3), two candidate US dating equations were derived by combining a machine learning algorithm with polynomial regression analyses. Lastly, an entirely automated model with the capacity to estimate GA using computational image analysis of the fetal cerebral cortex was developed and tested. <strong>Results:</strong> 1) Between November 2011 and July 2013, 3630 women presented for antenatal care, 1107 women had US and data were available for 950 (86%) of these. The PTB rate by US (US-GA) was 10.0% compared to 17.1% by a best clinical estimate of GA (C-GA), although the number of perinatal deaths that were preterm by US and C-GA were similar; 2) Implementation of a novel PTB classification system is feasible, and 3) New dating equations and an automated model provide estimates in the 3rd trimester with a prediction error at 34 weeks of 12.4 and 14.2 days, respectively. <strong>Conclusion:</strong> Clinical estimates of GA significantly overestimate the rate of PTBs. Despite this, the proportion of perinatal deaths in those identified as preterm by clinical and US methods was similar, suggesting that US may be a better predictor of PTB and its associated mortality. Novel dating methods can estimate GA at 34 weeks’ gestation with an error equivalent to that provided by routine clinical methods at 22 weeks’. This has important implications and may extend capacity to provide GA estimates amongst a large group of women whose birth phenotypes remain poorly described.