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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
461

The effects of age, gender, and socio-economic status on the ability of children to adapt to classroom situations

Nathan, Oded January 1992 (has links)
Note: Booklet available upon request.
462

Performance evaluation of error control methods with noisy feedback : the generalized type-II hybrid ARQ scheme and the selective repeat ARQ scheme on Markov and Gilbert Channels

Oduol, Vitalice K. January 1991 (has links)
Note:
463

Preservation: A Key From The Past For A Door To The Future

Battista, Anna Marie 04 1900 (has links)
The concerns of preservationist's to protect the built environment from demolition, are heightened in the midst of modern day pressures to develop,.A dilemma arises when deciding which buildings deserve to be historically designated. The efforts of this thesis identify the implications of such an issue. In this realm, problems of conserving the urban landscape are addressed, using three residential structures in Hamilton as the basis for argument. An evaluation of historical, architectural, political and economic merits are put forth to distinguish the attributes of one building as compared to another. When a structure succeeds in all of these factors, conflict may arise when deciding the level of continuity each residential unit maintains. Antiquity is not the only facet considered in support of preservation. A prolonged use for the respective building must exist. Securing our heritage is of grave concern. Without its recognition, reminders of the past will remain obsolete as so too will an era of irreplaceable architectural gems. / Thesis / Bachelor of Arts (BA)
464

Room to grow / Rum för växande

Palerius, Freja January 2019 (has links)
This project aims to create a different context for learning.  A space that is designed to create balance using green spaces in urban environments as an educational tool. This can help children growing up in urban environments to develop on a personal and interpersonal level, remove indifference or fear of nature and contribute to a healthy emotional, cognitive and motor development within each child.
465

All that glitters is not gold: authenticity and historical accuracy in representations of Mapungubwe

Andreou, Alexander 07 August 2023 (has links) (PDF)
The (Re)Discovery of Mapungubwe in 1933 sparked an ongoing 89-year journey of interpretation, re-interpretation, hidden agendas, scientific racism and an evolution of worldviews. In being as deeply meaningful and entrenched in the South African psyche as it is, Mapungubwe features in a variety of representations. For this thesis, a selection of these representations were made of both those considered historical and contemporary. These were discussed and unpacked in accordance with the broader research question examining if their accuracy matters. In this unpacking archaeological theory is discussed, as well as the nationalist ideologies and racial science which was attributed to it in the early 20th Century. In addition to the selection of representations, a history of the re(discovery) and discoveries of Mapungubwe is also discussed. Ultimately, it does not matter if representations of Mapungubwe are accurate or authentic, as these facets are framework dependent, and have been found to each carry their own meaning or 'truth' around the Mapungubwe story.
466

EFFECTS OF MATCHING IMAGES OF NATURAL AND BUILT ENVIRONMENTS ON DELAY DISCOUNTING: A SYSTEMATIC REPLICATION OF BERRY ET AL. (2014)

Fillmore, Elizabeth 01 May 2023 (has links) (PDF)
Decision making is heavily influenced by the environment around us. Berry et al. (2014, 2015, 2019) showed that viewing images of natural environments during the delay discounting task resulted in lower impulsive choice, as compared to viewing images of built environments or geometric figures. Berry et al. proposed that attentional factors could explain this effect, however, recent attempts to reproduce Berry et al.’s findings in a different laboratory have been unsuccessful (Johnson 2017, 2018, 2019). The present study tested if manipulating the participants’ observing responses towards different types of images (natural, built, and no images) modulates the effect reported by Berry et al. Eighty-seven college students were exposed to a matching-to-sample task aimed at increasing observation responses to the images (attentional manipulation) throughout the same delay discounting task implemented by Berry et al. (2014). It was expected that increasing the participants interaction with the images via the matching task would increase the magnitude of the effect reported by Berry et al. (2015); namely, further reduction of impulsive responses after being exposed to images of natural environments and increase of impulsive choice when exposed to built environments. Results indicated that participants who engaged in matching images of built environments had a higher rate of discounting than the group that replicated Berry et al. (2014). Matching images of natural environments did not seem to reduce impulsive choice, as predicted based on Berry et al.’s findings. Furthermore, none of the groups of the present study reproduced the rates of delay discounting originally reported by Berry et al. Participants in Berry et al., (2014) overall discounted less steeply when compared to participants in the present study. This finding resembles the results reported by Johnson et al. (2017, 2018, 2019) in their replica attempts. Lastly, participants’ self-reports regarding time spent in natural and built environments did not correlate with rate of discounting. Future research should use the number of correct responses as a measure of procedural integrity. Also, it is possible that perhaps participants failed to match more often in the built condition, and such aversive condition could have increased the impulsive choice for that group (Flora et al. 1992, 2003).
467

Understanding multiple health risks for low-income communities in Cape Town: water stress, COVID-19, and climate change

Foggitt, Alice 14 February 2022 (has links)
Climatic hazards, such as flooding and drought, are expected to increase in frequency as a result of climate change. Growing evidence suggests that climate-induced water challenges will interact with health concerns, compounding pre-existing challenges for vulnerable populations in low-and middle-income contexts. Due to the novel nature of COVID-19, limited research has focused on the combined impact of the climate crisis and COVID-19 on human health, particularly in South Africa. Thus, there is an urgent need to enhance understanding of the adverse health impacts linked to climate-related water stressors. Using a mixed-methods approach, this study drew upon multiple datasets to explore water-related health risks prevalent during the Cape Town drought, and in the subsequent period up to and including the current COVID-19 pandemic. Data sources include qualitative stories from a community resilience project, video interviews from the drought response in Cape Town, quantitative COVID-19 water service delivery data from informal settlements, and a document analysis of the Cape Town Water Strategy. Data was analysed using inductive and deductive research approaches to piece together different perspectives on how the pandemic interacts with pre-existing hazards. The study uses the climate-water-health nexus framing to investigate some of the critical health risks present during and after the drought. The study also explores how the COVID-19 pandemic interacted with health and water issues, providing a snapshot of the lived experience of the urban poor during an emerging public health crisis. The study subsequently considers the implications for the Cape Town water sector in view of the drought and ongoing COVID-19 pandemic. Results from this study show that inadequate sanitation and exposure to wastewater are the most commonly cited health risks for low-income households in the study sites. The COVID-19 pandemic has amplified existing water-associated health risks by indirectly widening health inequalities and increasing poverty levels. Moreover, compound risks have limited the ability of low-income households to cope with additional shocks and stressors. The findings of this study contribute to a critical research gap and expand the evidence base on the relationship between climate change, water, health, and compound risks in the South African context. The study calls for the adoption of a cross-sectoral, integrated approach to address health threats at the climate-water-health nexus.
468

Cape Town crisis: An analysis on drought response measures, the motives behind them, and their implications for equitable water access

Koehler, Lara-Marie 17 February 2022 (has links)
Cape Town has recently undergone major policy and regulatory changes within its water management strategy in response to a three-year drought (2015-2018). Due to the vulnerability of humanity to climate change, its uncertainty, and the risks that it poses for securing a reliable source of water, it is important to fully understand the implications of Cape Town's responding water management changes, in understanding that similar events could occur again in the future. Situated within the field of political ecology, this research aims to determine how the evolution of water management in Cape Town in response to the drought will most likely impact the ideal of equitable water service provision throughout the city's post-crisis context. By utilizing a series of personally conducted semi-structured interviews and secondary official city documents, this research focuses on the tourism industry and the African Water Commons Collective (AWCC) as a lens to understand what motivated the CoCT's water-policy decision-making processes, how the economy and low-income communities were considered and treated in response to these decisions, how these have gone on to impact their respective experiences with water accessibility, and what this implies regarding their accessibility for the near future. The results reveal that a significant number of policy decisions were based on the emergence of a duality of crisis: (1) a drought that mandated reducing demand and augmenting supply and (2) a financial model in need of stabilizing in order for the department to be able to do so. The tourism industry and low-income communities indeed experienced the City's governance responses differently; their experiences each implying very different outlooks for their accessibility in the future. The tourism industry's position within the economy and local government has proven to make it better able to adapt and be resilient in the face of water shortages, painting a pretty picture for its future survival in the face of climate change. The strained relationship between low-income communities and local government, on the other hand, has proven to complicate the City's attempts to improve water and sanitation services in those areas. Without this communication, the City cannot expect to fully understand how the impacts of their decisions are influenced by the spatial and infrastructural contexts of low-income communities. For this reason, improvements in living conditions for those areas cannot be expected. Rather, it is important that the City recognizes the impacts its decisions have on accessibility for the poor, and why. Recognizing that similar events are increasingly likely in the future, at a global scale and with greater frequency, the ability of the Water and Sanitation Department (W&SD) to recognize, reflect and react to these conflicting objectives is crucial if equal water accessibility between citizen groupings is ever going to be met.
469

An Examination of the Individual Level Antecedents of the Feedback Environment

Marando, Karen A. 01 December 2011 (has links)
No description available.
470

A Spatial Suitability Assessment of Maize and Tobacco in Response to Temperature and Rainfall Changes in Zimbabwe

Nkoma, Tsungai 12 April 2023 (has links) (PDF)
Climate is changing, and this change poses threats to the agricultural sector. The impacts of climate are expected to become more extreme as the earth warms, and this change will affect climate suitability for different types of crops. The degree to which an increase in temperature patterns and rainfall variations will affect climate suitability for agricultural practices needs to be further understood. This can be achieved by performing a climate sensitivity analysis and contribute to informing adaptation policies and mitigation measures. This study aims to analyze the sensitivity of important crops in Zimbabwe, maize, and tobacco, in response to changes in temperature and rainfall patterns. This research paper used a sensitivity analysis of climate variables; rainfall, and temperature, using historical climate data derived from WorldClim for the period 1990-2018 to assess climate suitability. The historical climate data was used as the baseline to assess the sensitivity of maize and tobacco under a 2°C, 3°C, and 4°C temperature increase as well as a 5%, 15%, and 30% increase and decrease in annual average rainfall amount. The modified spatial climate data was computed in QGIS, and suitability was simulated using the Ecocrop model embedded in the DIVAGIS user platform. The results from this study indicated that in Zimbabwe, both crops are more sensitive to rainfall changes than to temperature changes (independently). A 5%, 15%, and 30% decline in the average rainfall will result in previously suitable areas becoming marginal, very marginal, and others unsuitable for both crops that are in agro-ecological regions I to III; i.e., provinces that include Mashonaland Central, Mashonaland West, Mashonaland East, Harare, and Manicaland. When crops are subjected to combined changes (temperature and rainfall), both crops become more sensitive. When exposed to high temperatures and low rainfall together, for instance, provinces such as Mashonaland Central, Mashonaland West, Mashonaland East, and Harare which are known as historically suitable areas for maize cultivation, will become marginal or very marginal. This change in suitability could have consequences not only on food security but also on people's livelihood and understanding the crops' sensitivity to climate changes helps support the well-being progress of the country.

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