Thesis (M.S.)--Rochester Institute of Technology, 2007. / Typescript. Includes bibliographical references (leaves 66-71).

The participant was a 52 year-old woman, diagnosed with a profound intellectual disability, who engaged in high rates of severe self-injurious behaviors (SIB) predominantly in the forms of head banging and head hitting. A series of analyses and interventions was implemented to establish appropriate toileting behavior in the natural environment. Treatment consisted of conjugate reinforcement for optimal toilet positioning with the absence of SIB, episodic positive reinforcement of eliminating in the toilet, and programed generalization across environments and staff. Results showed the maintenance of optimal toilet positioning, decrease in SIB (under 1 instance per min), and appropriate eliminating in 96.3% of all available sessions. Direct support staff were trained to implement the program with 100% fidelity.

Background: Soil transmitted helminth infections (STHI) are important Neglected Tropical Diseases (NTD). The three main STHI are infections with Ascaris lumbricoides, Trichuris trichiura and hookworms. STHI have a significant effect on the growth and development of children. A national survey for STHI in El Salvador by Pan American Health Organization and Ministry of Health in 2012 in school children aged 8years to 10 years. The survey collected data on age, gender, behavioral habits, and source of drinking water, type of toilet facility used and ecological zone of residence. A) We did an analyses of the data with an aim to determine the prevalence of STHI in El Salvador, assess the risk factors and risk interactions. B) We also aimed to determine the efficacy of urea as a potential additive for inactivation of Ascaris suum in solar toilets. Methods: A) Data from 1310 subjects was analysed for determination of prevalence of STHI in El Salvador. Risk factor assessment was done by chi-square test, unadjusted logistic regression and fully adjusted logistic regression. Risk factor interactions was tested on multiplicative and additive scale. B) Urea was tested for efficacy in inactivation of Ascaris suum ova in 20 solar toilets. Under conditions of controlled pH and moisture, concentration of gas ammonia, peak temperature were measured along with duration of treatment with urea to determine viability of Ascaris suum samples placed in the solar toilets. Results: I) The prevalence of Ascaris lumbricoides in 8-10 year old school children is 2.75%, Trichuris trichiura is 4.1% and hookworm is 1.83%. A) For Ascaris lumbricoides infection: Significant risk in individuals from volcanic chains and central depression compared to those from the mountains. Spring or well water when used as source of drinking water was associated with higher risk of infection when compared with piped water. Higher infection was also associated with open air defecation compared to use of septic tank or flush toilet. Use of sandals or no footwear was associated with a higher risk of infection when compared to use of closed footwear at all times. B) For Trichuris infection: Coastal plains were associated with a higher risk of infection compared to the mountains while rural status was protective against infection. Spring or well water when used as source of drinking water was associated with higher risk of infection when compared with piped water. Use of sandals or no footwear was associated with a higher risk of infection when compared to use of closed footwear at all times. C) For hookworm infection: Risk of infection was higher in individuals from urban regions. Spring or well water when used as source of drinking water was associated with higher risk of infection when compared with piped water. Use of sandals or no footwear was associated with a higher risk of infection when compared to use of closed footwear at all times. Poor handwashing was shown to be protective against infection with hookworm. Significant risk factor interactions were identified for infection with each of the three soil transmitted helminths. II) Urea as an additive at 1%w/w to feces tested in solar toilets showed an inactivation rate of nearly half the Ascaris suum ova samples. Fifty percent or higher inactivation rates were associated with ammonia gas concentrations of 109.5 ppm or higher and duration of treatment of 72 hours or higher. Conclusions: Prevalence of STHI in 8-10 year old school children for 2012 in El Salvador is low. Significant risk factors for STHI in El Salvador are eco-epidemiologic zone, source of drinking water, type of sanitation, use of shoes behavior and urban status of place of residence. Use of urea for inactivation of soil transmitted helminth ova in feces is a possible intervention for environmental control of STHI.

No description available.

Two things struck me during my time in Dharavi. The first was the bad public health and the second the ingenuity and entrepreneurial spirit of the people who lived there. The health issues, a result of inadequate sanitation, can be directly linked to the shortage of toilets. For every toilet there are a thousand users and because of this over a quarter of the people in Dharavi choose instead to publicly defecate. On the other side of the coin however, stands Dharavi’s remarkable recycling industry and in Dharavi alone 80% of Mumbai’s plastic waste is recycled and given new use. The concept revolves around recyclability and combining industry with sanitation; recycling the produced waste and generating income. If there’s a way to profit from human waste it is likely that people would go to certain lengths to collect the necessary material. By removing the waste and converting it to humanure, positive side effect would include cleaner streets and in general a healthier population. The idea is therefore to build a waste management facility where income is generated through the collected waste and used to improve the surrounding community. In this proposed space you can go to the toilet, throw away your trash and food waste and even use the functions provided to do chores or simply relax. The food and human waste from toilets could be used as fertilizer and sold for a profit or perhaps even used as fuel. The garbage could be collected and sorted on spot and then sold onwards for further refinement.

In the multi-step synthesis of Lilestralis, a synthetic muguet fragrance, the kinetics and mechanism of the formation of 3-(3-t-butylphenyl)-2-methylpropan-1-ol (m-LOL) and 4-(3-t-butylphenyl)-2-methylpropan-1-ol (p-LOL) from 2-methyl-3-phenylpropan-1-ol (MPP) and isobutylene using concentrated liquid phosphoric acid as a catalyst was investigated. By-products that include phosphate esters of MPP, m-LOL and p-LOL and oligomers of isobutylene were produced during this reaction and their role within the kinetics and mechanism was also investigated. When crystalline phosphoric acid is dissolved in water, it can form equilibrium polyphosphate mixtures at high acid concentrations. The phosphate species have the general formula Hn+2PnO3n+1 and consist of species such as orthophosphoric acid (H3PO4), pyrophosphoric acid (H4P2O7) and triphosphoric acid (H5P3010). The presence of polyphosphate within liquid phosphoric acid solutions used in this study was investigated using 31P NMR. To investigate the influence of water on the reaction, a number of experiments were performed using 1,4-dioxane as a solvent. This was chosen as the boiling points and density are similar to water, although it is classified as an aprotic solvent. Phosphate esters of MPP, m-LOL and p-LOL are produced as by-products and can potentially undergo hydrolysis when water is present, therefore reactions using aqueous phosphoric acid solutions may not give a true reflection of the concentration of phosphate esters produced. The use of heterogeneous catalysts was also investigated in order to improve yield and selectivity for p-LOL and m-LOL. These include acid catalysts such as solid phosphoric acid supported on Kieselguhr (SPA), sulphated zirconia and ultra stable zeolite-Y (H-USY).

When we consider global sanitation from within the framework of sustainable development, we are both failing to meet the needs of the present and are jeopardizing the capacity of future generations to do so. The primary function of sanitation and waste treatment is the protection of public health, but it is urgent that we also consider the long-term sustainability of sanitation and waste treatment systems. Our choice of sanitation and waste treatment systems is intimately connected to the greatest equity and sustainability challenges of our time, and we need something better than the Porcelain Dream (i.e. flush toilets, sewerage, and centralized conventional wastewater treatment). This thesis explores the design of sustainable sanitation systems from three different but complementary perspectives: 1. In a material flow analysis (MFA), I evaluate the positive impact of ecological sanitation (or the reuse of nutrients in excreta for agriculture) as an intervention to mitigate nitrogen pollution and improve stewardship of the global nitrogen cycle. I find that ecological sanitation can substitute 51% of nitrogenous fertilizer use, reduce discharge of nitrogen to waterways by 71%, decrease nitrous oxide (N2O) emissions by 34%, and improve the circularity of the agricultural-sanitation nitrogen cycle by 22%. 2. Through environmental engineering research, I derive fundamental drying characteristics of fresh faeces to support the development of ecological and sustainable sanitation. Based on this characterization, I propose the use of the Guggenheim, Anderson, and de Boer (GAB) model for predicting the relationship between water activity (aw) and equilibrium moisture content, calculating the heat of sorption, and estimating the corresponding energy requirements for drying of fresh faeces. Given an anticipated range of initial moisture contents of 63 to 86%, I estimate an energy requirement of 0.05 to 0.4 kJ/mol to inactivate pathogens in fresh faeces. 3. Via an evaluation of the composting toilet project at the University of Victoria (UVic), I explore factors critical to promoting a paradigm shift from the conventional to more ecological and sustainable systems. I identify the following as factors that facilitated implementation in the Exploration and Adoption/Preparation phases: supportive and self-reinforcing research and outcomes, favorable adopter characteristics, and the technology’s beneficial features. The overall objective of the research is to communicate that the design of sustainable sanitation systems is urgent, with implications both locally and globally, and to provide information to support a shift towards more sustainable sanitation systems. / Graduate / 2020-12-11

In informal settlements, shared sanitation facilities offer pragmatic solutions as it allows inhabitants to access sanitation because they cannot install in-house toilets. However, the World Health Organisation (WHO) classifies shared sanitation as unimproved because there is a tendency for facilities to be mismanaged resulting in unhygienic practices. This study addressed the issues around the quality of shared sanitation by looking at how sanitation activities between men and women shape the use and management of shared sanitation facilities within and between households. The study adopted a qualitative research paradigm, at both macro and micro levels, of data collection. It made use of a thorough review of literature and in-depth interviews which provided a deeper insight into how sanitation policy and practice shape and influence sanitation processes in informal settlements and the wider implications they have on state-society relations. A case study method of inquiry of Phomolong informal settlement revealed that shared sanitation is embedded in a host of a complex and overlapping processes, which revolve around tenure insecurity, urban poverty, gender power relations and the historical legacies of racialised urban planning. The study concludes that the absence of a coherent sanitation policy for informal settlements has not only widened sanitation backlogs in informal settlements, but it has significantly deteriorated these communities’ sense of citizenship and belonging. To understand Phomolong’s informality, one has to appreciate that self-management underpins its sanitation processes as a result of inadequate state-led service delivery. Although the Free Basic Sanitation policy (FBSan) is designed to specifically cater for poor urban communities, it has done little to alleviate the challenges of informal urban sanitation. A host of social issues shape how shared sanitation is accessed, perceived and managed on a daily basis. Specifically, gender and tenure status provide an added layer of challenges as women navigate the burden of being the custodians of household health and hygiene as well as their own personal security and dignity. / Dissertation (MSocSci)--University of Pretoria, 2019. / Anthropology and Archaeology / MSocSci / Unrestricted

Havlng evaluated previous attempts to toilet train developmentally disabled indtviduals, Foxx and Azrin (1973) developed a treatment package designed to produce and maintain independent toileting in institutionalized retardates. The training procedure is divided into two phases. The first phase is the bladder training procedure, which is then followed by the self-initiation training. Foxx and Azrin note that, regardless of previous toileting behavior, all trainees should receive the same sequence of training in the toilet training program, i.e. , bladder training, followed by selfinitiation training. The authors do not differentiate between various types of enuresis, nor do they suggest that a specific type of treatment be utilized for a specific type of enuresis. Without first identifying which children have self-initiated prior to training (irregular enuretics), it is impossible to evaluate if a specific treatment is more beneficial for a particular type of enuresis. Although Foxx and Azrin (1971; 1973) have included overcorrection as part of a total treatment package, the effects of overcorrection, as the major treatment component, in the treatment of a particular subgroup of enuretics, has yet to be established. The purpose of the present study was to test the efficacy of.an overcorrection procedure, combined with verbal praise, for toilet training developmentally disabled children who display irregular enuresis (Yates, 1970). Four developmentally disabled children with irregular enuresis were administered an overcorrection procedure contingent upon each toileting accident. Verbal praise was also administered for the absence of "accidents." Results indicated that the training procedure was successful in" eliminating incontinence in three of the four subjects on whom the training was administered. The reduction of incontinence generalized outside "the children's home environment and was mainted during a one month follow-up.

No description available.