Pneumatic Reduction Of Intussusception In Children At The Komfo Anokye Hospital, Kumasi, Ghana

Objective: To evaluate the role of pneumatic reduction in the management of intussusception in children in the setting of a sub-Saharan African nation. Design: Prospective case series. Setting: Tertiary care teaching hospital in Kumasi, Ghana. Subjects: Forty four children, aged 4 months to 13 years, 28 boys and 16 girls, were admitted with a clinical diagnosis of intussusception and confirmed by ultrasonography. Interventions: Twenty two children had air enema reduction of the intussusception attempted in the operation theatre under general anaesthesia. The average pressure used for air enema reduction of the intussusceptions was 110.4 mm Hg. Main outcome measures: Success of pneumatic reduction, morbidity and mortality. Results: Overall air enema reduction of intussusception was successful in 59.1% of children who underwent this procedure. There were no deaths among children who had a successful air enema reduction of intussusception. One child (11.1 %) out of nine who had laparotomy done after a failed pneumatic reduction died. The average length of hospital stay was shorter in those with successful air enema reduction (3.8 ± 2.3 days, 95% Confidence Interval [CI] = 2.4 to 5.2) than those who had a laparotomy performed for manual reduction of the intussusception after a failed pneumatic reduction (6.7 ± 5.1 days, 95% CI = 33 to 9.9). Conclusion: Although the sample size is small, pneumatic reduction of intussusception in children without peritonitis is possible, practical, and reliable and must be tried first, preferably under general anaesthesia in our sub-region before proceeding to laparotomy in case of failure. East African Medical Journal Vol. 85 (11) 2008: pp. 550-55

Effect of Formaldehyde Treatment on Bacteria-Infected Hatching Eggs of Gallus gallus domesticus Linnaeus, 1758

The effectiveness of formaldehyde egg disinfection is well documented in literature despite its reported toxicity. This study focused on the need for an optimum formaldehyde concentration (FC) that significantly reduces microbial load with minimal damaging effect on egg viability and hatchability. Using a true experimental design, bacterial load on formaldehyde-treated (FT) and control groups of eggs and hatchability were compared. Gram-staining and biochemical tests identified five bacterial species: Escherichia coli, Enterobacter sp., Bacillus cereus, Staphylococcus aureus and Micrococcus sp. with the two coliform bacteria, E. coli and Enterobacter sp., dominating. Comparison of median differences of bacterial load on eggs before and after formaldehyde treatment by Wilcoxon Signed-Rank Test showed marginal significance in bacterial load reduction (Z = -2.016, P = 0.044). This difference was observed for bacterial load between the control group (CG) and the FT group with FC 30/20 ml/g (U = 3.0, P = 0.047). The hatchability of the CG differed significantly from four FT groups of eggs with FC 30/20 ml/g showing the highest level of significance [χ² (1) = 14.71; P = 0.0001]. A FC of 30/20 ml/g produced the best domestic fowl egg disinfection compared to other FCs and hatchability decreased with increasing formalin volume

The Relationship between the Quality of Teachers and Pupils Academic Performance in the STMA Junior High Schools of the Western Region of Ghana

The study investigated into the relationship between the quality teachers and students academic performance in Sekondi Takoradi Metropolitan Assembly (STMA) Junior High Schools. Descriptive survey design was used and the target population was Junior High School teachers and pupils in the metropolis. Five educational circuits in the metropolis were randomly selected for the conduct of the study. Stratified and systematic sampling techniques were used to sample participants and the sample size was 500. Questionnaire was the main instrument used for the data collection. Pearson Moment Correlation, ANOVA, means, percentages and standard deviations were used to analyse the data. The results of the study showed that even though the quality of teachers was high in terms of their academic and professional qualifications, it did not reflect much in the performance of the students

Incidence of Blood and Meat Spots in Eggs from a Commercial Poultry Farm

A study was conducted in two phases simultaneously in a commercial poultry farm to ascertain whether egg weight, temperature variation in pens, and proximity of birds to a noise source had an influence on the incidence of blood and meat spots in chicken eggs. Phase one involved the random sampling of 60 eggs per week for 15 weeks, making a total of 900 eggs from the pens of a 50-week-old layer strain. Phase two determined the effect of noise from a 3.3 kW electrical gasoline generator on the incidence of blood and meat spots. It lasted for 14 weeks and involved the random sampling of 10 eggs per week directly from two pens (i.e., A & D). Pen A and D were 4.7 m and 68 m away from the noise source respectively. A Chi-square test was conducted to establish the relationship between the parameters, whilst a Cramer’s V test was used to determine the extent of association where differences were deemed significant (p<0.05). Out of the 1040 eggs collected, 63% of the eggs had spots (32% blood spots and 31% meat spots). No association was observed between the occurrence of spots and egg weight, temperature variation, and proximity of birds to a generator

Early Childhood Education in Ghana: Perceptions of Stakeholders in the Western Region of Ghana

The purpose of the study was to determine the perceptions of the stakeholders in early childhood education and their perceptions affect the performance of their roles in the implementation of early childhood education programmes. Parents, community members, early childhood education teachers, members of religious organisations and Non-Governmental Organisations formed population of the study. Simple random sampling technique was used to sample the early childhood schools and stratified sampling technique participants in each district. The instruments used for data collection were questionnaire and structured interview guide. Data collected were summarised using percentages, means, standard deviations and Pearson Moment Correlation Coefficient The Stakeholder in the Western Region of Ghana have low perception of early childhood education and this adversely affects the performance of their roles to ensure effective implementation of early childhood programmes and policies in the region. There is a relationship between their perceptions and the level of performance of their roles. It is recommended that Religious organizations, District and Municipal Assemblies as well as non-governmental organizations should be encouraged to participate actively in the implementation of early childhood programmes and policies in the regio

The range of abdominal surgical emergencies in children older than 1 year at the komfo anokye teaching hospital, Kumasi, Ghana

Background : Acute abdominal conditions are a common reason for emergency admission of children. Little is available in the literature about such conditions in our subregion, especially Ghana. Objective : The aim of this study was to investigate the range of emergency abdominal surgical conditions amongst children in the subregion, with particular reference to Komfo Anokye Teaching Hospital, Kumasi, Ghana. A prospective survey of all children older than 1 year undergoing an emergency abdominal surgery was carried out. Methods : Details of all children (except infants) operated for an acute surgical abdominal condition over a 5-year period were entered into a specially designed form, capturing patient characteristics, surgical causes of the emergency, operative procedure, complications, morbidity and mortality rates. Results : Nine hundred fifty-five children aged > 1 year but < 15 years were enrolled in the study. The mean age was 8.8 \ub1 3.2 years. The leading causes of surgical abdominal emergencies were typhoid perforation (TP) of the gastrointestinal tract (GIT), 68%; acute appendicitis, 16%; abdominal trauma and intestinal obstruction (including intussusception), 4.7% each; irreducible external hernias, 2.5%; primary peritonitis, 1.0%; gallbladder disease and gastric perforation, 0.8% each. Many children died from the TP group; case fatality for TP alone was 12.6%. The overall mortality was 9.7%. Morbidity was influenced by the presence of major peritoneal contamination, continuing peritonitis and surgical site infections (SSIs), which led to long hospital stay. Conclusions : In our hospital, TP of the GIT, acute appendicitis, intestinal obstruction, irreducible external hernias and primary peritonitis were the most common abdominal emergencies encountered in children after infancy. The high morbidity and mortality in TP is attributable to ignorance, poor sanitation and delay in reporting to hospital for treatment

Assessment of the quality and quantity of naturally induced antibody responses to EBA175RIII-V in Ghanaian children living in two communities with varying malaria transmission patterns

Abstract Background Recent global reports on malaria suggest significant decrease in disease severity and an increase in control interventions in many malaria endemic countries, including Ghana. However, a major driving force sustaining malaria transmission in recent times is the asymptomatic carriage of malaria parasites, which can enhance immune responses against parasite antigens. This study determined the prevalence and relative avidities of naturally induced antibodies to EBA175RIII–VLl in asymptomatic children living in two communities with varying malaria transmission patterns. Methods An asexual stage Plasmodium falciparum antigen, EBA175RIII–VLl was expressed in Lactococcus lactis, purified and used in indirect ELISA to measure total and cytophilic IgG concentrations and avidities in children aged between 6 and 12 years. The children were selected from Obom and Abura, communities with perennial and seasonal malaria transmission, respectively. Venous blood samples were collected in July and October 2015 and again in January 2016. The multiplicity of infection and the genetic diversity of EBA175RIII circulating in both sites were also assessed using polymerase chain reaction. Results Asymptomatic parasite carriage in the children from Obom decreased from July (peak season), through October and January, however parasite carriage in children from Abura was bimodal, with the lowest prevalence estimated in October. Antibody concentrations over the course of the study remained stable within each study site however, children living in Obom had significantly higher EBA175RIII–VLl antibody concentrations than children living in Abura (P < 0.05, Mann–Whitney test). Over the course of the study, the relative antibody avidities of EBA175RIII–VLl IgG antibodies were similar within and between the sites. Conclusion Naturally acquired IgG concentrations but not relative antibody avidities to EBA175RIII–V were significantly higher in Obom where malaria transmission is perennial than in Abura, where malaria transmission is seasonal

The Effects of Business Failure Experience on Successive Entrepreneurial Engagements: An Evolutionary Phase Model

This study draws insights from the literatures on entrepreneurial learning from failure and organizational imprinting to develop an evolutionary phase model to explain how prior business failure experience influences successive newly started businesses. Using multiple case studies of entrepreneurs located in an institutionally developing society in Sub-Sahara Africa, we uncover four distinctive phases of post-entrepreneurial business failure: grief and despair, transition, formation and legacy phases. We find that while the grieving and transition phases entailed processes of reflecting and learning lessons from the business failure experiences, the formation and legacy phases involve processes of imprinting entrepreneurs’ experiential knowledge on their successive new start-up firms. We conclude by outlining a number of fruitful avenues for future research

Human capital and strategic persistence:An examination of underperforming workers in two emerging economies

Despite the considerable research on strategic persistence, there remains a lack of understanding as to why companies persist with underperforming workers. Our study seeks to fill this gap in the literature by integrating the concepts of the paradox of success, external legitimacy, nepotism and the escalation of commitment perspectives to develop an integrated explanation for persistence with underperforming workers. Drawing on insights from two emerging economies in Africa: Ghana and Nigeria, we uncovered that persistence with underperforming workers stems from information hoarding, favouritism through tribalism and externally imposed constraints. Our study also articulates the underlying processes inherent in such persistence. The wider implications for theory and public policy are examined

Оценка эффективности системы безопасности с использованием метода расчёта риска для типового радиологического объекта

В статье показано, как можно измерить эффективность безопасности, учитывая затраты, связанные с обеспечением безопасности радиологического центра, и предложены меры повышения безопасности путем использования анализа рисков. Продолжается развитие ядерных технологий и областей применения ядерных и радиоактивных материалов. Это развитие связано с потенциальным риском злонамеренного использования радиоактивных материалов, поэтому важно обеспечить физическую защиту ядерных объектов, чтобы противостоять этим угрозам и использовать атомную энергию в мирных целях. Эффективность систем безопасности, установленных на объекте, можно оценить путем анализа рисков, связанных с объектом