A two-track approach to sanitation and waste management in Adjumani, Northern Uganda

A ‘two-track’ approach has been adopted in order to tackle the problems of sanitation and waste management in the town of Adjumani, Northern Uganda. The first track consists of a sludge treatment facility for the disposal of sludge from existing toilet systems (pit latrines and septic tanks). The second track consists of the promotion of ecological sanitation toilets and wetland systems and of a small composting facility where the solids from ecosan toilets can be disposed of. A sanitation levy on the tariff for piped water is used as a financing tool

Suicide and the South African business cycle: a time series approach, 2006-2015

Suicide is a major public health issue and imposes substantial economic cost on society every year. For example, the World Health Organisation has estimated that there are over one million completed suicides every year, of which about 75% occur in middle and low income countries. In South Africa, suicide is one of the leading causes of non-natural death, but remains under-researched from an economic point of view due to limited data availability. Using monthly data for the period 2006-2015, this study explores whether there is a relationship between suicide and the South African business cycle. This is further broken down to examine how, if at all, this relationship with the business cycle differs across age-, gender-, and racial groups. The primary source of data for suicide and demographic groups were obtained from Statistics South Africa’s Mortality and Causes of Death Data from Death Notification released since 2006. The coincident indicator was used as a proxy for the business cycle as it represents the business cycle in real time. Using an autoregressive distributed lagged model (ARDL), a long run relationship was established with suicide being a function of the coincident indicator, divorce and fertility rate. The findings of this paper show that the overall suicide rate moves with the South African business cycle (i.e. pro-cyclical relationship) in the long run. This relationship holds for males, the black population group and the 15-29 and 30-44 age categories. In addition, the divorce rate had a positive and significant relationship with the overall suicide rate, as well as suicide among the black population group and for the 30-44 age category, whereas fertility rates had no significant relationship with suicide

Suicide and the South African business cycle

Using monthly data for January 2006 - December 2015, this study explores the relationship between suicide and the South African business cycle. Contrary to most previous research, the findings reveal that suicide is pro-cyclical

Comparación de imágenes entre secuencia convencional y secuencia de difusión en la resonancia magnética nuclear del accidente cerebrovascular isquémico agudo. Centro Diagnóstico Osteoperú, Lima-2017

Publicación a texto completo no autorizada por el autorCompara las imágenes entre la secuencia convencional y la secuencia de difusión en la resonancia magnética nuclear del accidente cerebrovascular isquémico agudo en el Centro Diagnóstico Osteoperú en Lima en el año 2017. Es un estudio cuantitativo, observacional, con diseño descriptivo-comparativo, transversal y retrospectivo cuya muestra está constituida por 78 estudios de resonancia magnética nuclear cerebral en pacientes con accidente cerebrovascular isquémico agudo atendidos en el Centro Diagnóstico Osteoperú en Lima en el año 2017, seleccionados mediante un registro censal, teniendo en cuenta los criterios de inclusión y exclusión. La técnica utilizada es el análisis documental y el instrumento una ficha de recolección de datos. Para el análisis descriptivo de las variables cualitativas se estiman frecuencias absolutas y relativas (porcentajes).Tesi

Clima social escolar y autoestima en estudiantes de educación primaria de una Institución Educativa Pública, Cajamarca 2021

El presente trabajo de investigación se propuso como objetivo general, determinar la relación entre el Clima social escolar y la Autoestima en estudiantes de educación primaria de una Institución Educativa Pública, Cajamarca 2021, de acuerdo a la metodología empleada es descriptiva correlacional, cuyo diseño empleado fue no experimental, de corte transversal y enfoque cuantitativo, se empleó el método hipotético deductivo, de tipo no probabilístico, cuya población-muestra fue de 80 estudiantes de 4to y 5to grado de nivel secundaria. De acuerdo a los resultados obtenidos el valor de sig = 0.001 < 0,05, existiendo evidencia estadística para rechazar Ho, y aceptar la hipótesis de investigación, así también existe una relación positiva baja (rho=0,375) entre el clima social escolar y la autoestima. Para la variable clima social escolar, el 35% de la muestra evaluada (28 estudiantes), afirma que el clima social escolar es de nivel malo, el 36.3% (29), manifiesta que es regular y, el 28.7% (23) afirman que es bueno y para la variable autoestima, el 57.5% de la muestra evaluada (38 estudiantes), afirma que la autoestima es de nivel bajo, el 22.5% (18), manifiesta que es medio y, el 30% (24) afirman que es alto

The suitability of the infinite NTU model for long-term rock bed thermal storage performance simulation

Paper presented to the 3rd Southern African Solar Energy Conference, South Africa, 11-13 May, 2015.Packed beds incorporating rock as the storage medium and air as the heat transfer fluid have been proposed as a cost-effective approach for thermal storage in solar power plants. In order to assess the viability of rock bed thermal energy storage (TES), it is essentially necessary to predict the air and rock temperature profiles through the bed during charging and discharging. A number of models are available for this purpose, including, at the more basic level, the popular Hughes “E-NTU” model and the simplified “Infinite NTU” model. Unlike the E-NTU method, the Infinite NTU method assumes an infinite heat transfer coefficient between the air and the rock, which implies equivalent air and rock temperature profiles. Typically, the more detailed a model, the greater the computational effort required to solve it. For long-term analysis, a time-efficient model is necessary to prevent excessively long computation times. This paper evaluates the comparative accuracy and computational efficiency of the E-NTU and Infinite NTU models when simulating the short- and long-term performance of CSP rock bed TES systems. On the basis of these comparisons, the appropriateness of employing the less realistic but less costly Infinite NTU model in the long-term simulation of CSP rock bed TES systems is evaluated.cf201