Health Worker Opinion/Perception of Health Services provided to Patients in the Selebi Phikwe Ni-Cu Mine Area, Botswana

This study determines the prevalence of types of sicknesses and diseases affecting patients visiting health service facilities and the available health services within the Selebi Phikwe Ni-Cu mine area, Botswana. Through the administration of questionnaires and structured questions, attempts were made to establish and verify the existing human health problems at the study area by focusing on respiratory tract related symptoms of sicknesses and diseases. With the aid of statistical package for social sciences (SPSS), interpreted results from respondents indicated that all the health service providers served patients suffering from headaches, persistent coughing, chest pains, lower abdominal pains, pain when passing out urine, genital discharge and diarrhea. Seventy one percent of the health service providers indicated that their patients suffered from body weakness, 86 % indicated that they had patients who suffered from recent loss of body weight, and another 86 % pointed out that their patients had influenza/common cold. Other health complaints reported included unusual spitting, shortness of breath, palpitations, nausea/vomiting, diarrhoea, and constipation. Moreover the health service providers indicated that they had patients who suffered from significant illnesses of which some passed away. However if there are lacking facilities, patients are referred to bigger health service providers in the country. The findings of the study do not in general depict demarcating differences of health status of residents of the study area to those of the control site. A need therefore for further investigations to be conducted to establish relations of mining activities to human health at Selebi Phikwe is called for. African Journal of Health Sciences Vol. 13 (1-2) 2008: pp. 101-10

Headaches among residents within the Selebi Phikwe Nickel-Copper mining environment, Botswana

Headache occurrences among different classes of residents within a nickel-copper (Ni-Cu) mining and smelting environment in Botswana are investigated using questionnaires and statistical package for social sciences (SPSS). Interpreted results from respondents indicated that all of the health service providers, 80% of educational institutions, and 70 % of businesses enterprises had patients, learners and workers respectively, and 77 % of individuals, complained of one form of headache or the other. Similar high values were obtained when responses were considered according to study sites, especially for frontal and temple headaches. Females suffered slightly more often from headaches than males. Values for sites close to smelter/concentrator plant and mine were in general higher. Mining activities especially the release of sulphur gases and fumes into the atmosphere, and other climatic factors could possibly be contributory to the rampant occurrence of headaches at Selebi Phikwe. African Journal of Health Sciences Vol. 13 (3-4) 2006: pp. 43-5

Periodic methanol masers: from a colliding wind binary (CWB) perspective

Since the discovery of periodic class II methanol masers at 6.7 and 12.2 GHz associated with high-mass star formation regions (HMSFRs), a number of possible driving mechanisms have been proposed to explain this phenomenon. Here, we apply a more realistic treatment of the original colliding wind binary (CWB) model explanation to investigate to what extent it can describe the flare profiles of the periodic methanol masers. It was found that the CWB hypothesis is feasible from an energetics standpoint, because the emission from the shocked gas does cause an outward shift of the position of the ionization front (IF). This confirms that the energy budget available from the shocked gas is enough to be the driving force behind the CWB model. The CWB model describes the light curve of the 1.25 km s−1 12.2 GHz velocity feature of G9.62 + 0.20E very well over 4000 d. The quiescent state flux density of the 1.25 km s−1 velocity feature can also be described very well by the time-dependent change in electron density (ne). The CWB model also describes the other periodic methanol masers, G22.357 + 0.066, G37.55 + 0.20, and G45.473 + 0.134, which have similar light curves, very well. This strongly suggests that these periodic methanol masers can be described by the time-dependent change in the free–free emission from some part of the background H II region against which the masers are projected

Manufacturing of Patient-Specific Unicompartmental Knee Replacements

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Classification of gender and race in the distal femur using self organising maps

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<B>Development of a Patient-Specific Femoral Component for Unicompartmental Knee Replacement</B>

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In-vitro measurement of tibiofemoral kinematics after patient-specific unicompartmental knee replacement

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Contact stresses in a patient-specific unicompartmental knee replacement

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Development and testing of patient-specific knee replacements

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Reverse Engineering the Human Knee

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