519 research outputs found
Remittances, exchange rate regimes, and the Dutch disease: a panel data analysis
Using disaggregated sectorial data, this study shows that rising levels of remittances have spending effects that lead to real exchange rate appreciation and resource movement effects that favor the nontradable sector at the expense of tradable goods production. These characteristics are two aspects of the phenomenon known as Dutch disease. The results further indicate that these effects operate more strongly under fixed nominal exchange rate regimes.Emigrant remittances ; Foreign exchange rates
Breakfast Habits among School Children in Selected Communities in the Eastern Region of Ghana
Background: Breakfast is considered the most important meal of the day, yet many people skip breakfast. Studies indicate that school age children who regularly skip breakfast are not likely to concentrate in class, thus affecting school performance. This study determined the breakfast habits and nutrient contributions of the breakfast meal to the daysâ nutrient intake.Design: A cross sectional study was conducted among school children (n=359) between the ages of 6-19 years in Manya Krobo in the Eastern Region of Ghana. Questionnaires were used to collect information on background characteristics and breakfast consumption habits. The 24-hour dietary recall method was used to obtain information on the childrenâs food intake. T-test was used to compare differences between means of variables of breakfast consumers and skippers.Results: About 85.5% of the children had breakfast on the day of interview. More boys (87.8%) consumed breakfast compared to the girls (83.1%). For those who skipped breakfast, lack of food at home or lack of no money (36.5%) was the main reason. Breakfast consumers had significantly higher energy and nutrient intakes than those who skipped breakfast (energy 2259 verses 1360 kcal, p-0.039; vitamin A 1534 verses 662 ug/RE, p=0.001; iron 22.9 verses 13.9 mg, p=0.017, zinc 9.9 verses 5.6 mg, p=0.034). The breakfast meal contributed between 32-41% of the dayâs energy intake, and between 30-47% of micronutrient intake.Conclusion: Encouraging breakfast consumption among school children is a way to ensure that they meet their daily nutrient and energy intakes.Keywords: Breakfast, School children, Energy, Nutrients, Ghan
The Mathematics of Ghanaian circular musical drumheads: varying tension versus constant tension. The case of the âDonnoâ
Most drums used in Africa and in other parts of the world have varied shapes and sizes in their design. The hourglass shaped talking drums in Ghana is a pressurized drum which alters the tension on the drumhead, and as a result the pitches of the sounds emanating from it due to the strings that hold the drumhead in place, both from its upper and lower circumference. Remarkably, and in contrast to the circular drum with constant tension on the drum head, this drum possesses both harmonic and rhythmic characteristics. In this work the drumhead is modeled, by making the tension in it to vary as a periodic function of time, using the two dimensional wave equation. The separated Ordinary Differential Equations (ODEs) are solved and the Fourier- Bessel coefficients are determined using the initial and boundary conditions imposed on the equation. For a suitable choice of radial functions, the normal modes from our model are in good agreement with experimental values for harmonic instruments which produce integral overtones.Keywords: Talking drum, Fourier-Bessel , Eigenvalues, rhythmic, harmoni
A Sudden Total Loss of Vision After Routine Cataract Surgery
We share our experience of a 50-year-old controlled hypertensive woman who had routine cataract surgery in her left eye. She was given retrobulbar Xylocaine with adrenalin and postoperative gentamycin. She subsequently became blind in the operated eye after developing macular infarction by the first day post operative and optic atrophy by 2 months postoperative. This could have been caused by vascular occlusion in an already compromised artherosclerosed vessels. It could also have been due to gentamyin toxicity. Gentamycin injection given subconjunctivally is known to rarely result in severe retinal toxicity. This case illustrates that even though cataract surgery is considerd a simple routine procedure, and is performed in high volumes, it is not without its blinding complications. We recommend that the use of adrenaline in xylocaine should be used with caution in hypertensive patients and also the routine use of subconjunctival gentamycin injection after cataract surgery should be reviewed and other modes of endophthalmitis prophylaxis be considered
Agri-food importing firms amid a global health crisis
This paper exploits daily customs transaction data on the universe of Swiss agri-food importing firms to assess the response of firms to a global shock. Estimating a linear model that regresses product-level import margins on daily COVID19 shocks and a host of fixed effects, we find that the pandemic had a substantial trade-reducing effect on imports. The trade effects were driven mainly by a reduction in the number of importing firms (i.e., 63% of the total effect), and much less by the number of products imported and the average import value per product per firm. We explore several sources of heterogeneity and show, among others, that larger and incumbent firms were affected more by the trade adjustments. Our results also reveal that the relative contribution of each import margin to the decline in aggregate imports depends on the level of data aggregation (i.e., daily, weekly or monthly). Finally, we validate and confirm our main findings by testing two mechanisms: (i) third-country supply-side effects using insights from structural gravity models and (ii) changes to consumer demand using consumer mobility, and retailer and consumer scanner data
Ghana and the COVID-19 pandemic
A new virus causing predominantly respiratory tract infection was described in China late 2019. The virus was subsequently named the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the disease it causes as COVID-19. Subsequently the virus spread to many parts of the world. This resulted in the World Health Organisation declaring COVID-19 a global pandemic on 11th March 2020
Causes of Death in Hospitalized HIV Patients in the Early Anti-Retroviral Therapy Era
Objective: To establish the cause(s) of death among persons with HIV and AIDS admitted to the Fevers Unit of the Korle-Bu Teaching Hospital (KBTH) in 2007 and to determine whether they were AIDS-relatedin the era of availability of HAARTMethod: Retrospective chart review of all deaths that occurred in the year 2007 among inpatients with HIV infection. Cause of Death (COD) was established with post mortem diagnosis, where not available ICD-10 was reviewed independently by two physicians experienced in HIV medicine and a consensus reached as to the most likely COD.Results: In the year under review, 215 (97%) of the 221 adult deaths studied were caused by AIDS and HIV-associated illnesses. Of these, 123 (55.7%) were due to an AIDS-defining illness as described in CDC Category 3 or WHO stage 4. Infections accounted for most of the deaths 158 (71.5%), many of them opportunistic 82 (51.8%). Tuberculosis was the commonest COD. Clinical diagnosis of TB was accurate in 54% of deaths, but was not validated by autopsy in 36% of deaths. There were few deaths (14.5%) in patients on HAART.Conclusion: In a developing country like Ghana where HAART was still not fully accessible, AIDS-related events remained the major causes of death in persons living with HIV. Total scale-up of the ART programme with continuous availability of antiretrovirals is therefore imperative to reduce deaths from AIDS and HIV associated illnesses. There is need for interventions for early diagnosis as well as reduction in late presentation and also better diagnostic tools for tuberculosis.Keywords Cause of death, HIV, AIDS, HAART, Ghana, Tuberculosi
Dietary intakes and iron status of vegetarian and non-vegetarian children in selected communities in Accra and cape coast, Ghana
There is a scarcity of information on dietary intake and iron status of Ghanaian children raised on vegetarian diets. A cross-sectional study design was used to compare the diets and iron status of vegetarian children between the ages of 9 months and 11 years (n= 26) with matched controls, non-vegetarian children (n=26) of similar ages and same sex and living within the same communities in Accra and Cape Coast, Ghana. Dietary information was collected using 24-hr food recall and 12-hr home observation. Haemoglobin, plasma ferritin, C-reactive protein, and Transferrin Receptor (TfR) concentrations were determined on finger prick (haemoglobin) and venous blood samples collected during the study. Based on the 24-hr food recall, vegetarian children’s diets were devoid of vitamin B12whereas non-vegetarian children’s diets were not (0.0 ± 0.0 mg vs. 1.5 ± 1.8 mg, p<0.001). The dietary intake based on 12-hr home observation showed similar results. However, vegetarians had significantly higher intake of dietary fibre (17.1 ± 11.9 g vs. 8.4 ± 6.2 g, p= 0.002), thiamine (1.1 ± 0.8 mg vs. 0.5 ± 0.3 mg, p= 0.001) and vitamin A (1702 ± 1887 Retinol Equivalent (RE)vs. 671 ± 691 RE, p= 0.010) than non-vegetarian children. Dietary diversity based on nine food groups was similar between groups (5.8 ±1.0score). Plasma ferritin was higher for non-vegetarian children compared to the vegetarians (59.2± 48.2 ng/mL vs. 34.1± 25.8ng/ml, p= 0.012) but there was no group difference in plasma TfR. The prevalence of anaemia was about 25% in both groups. Typical diets of Ghanaian children lack variety and both vegetarian and nonvegetarian diets are insufficient to support adequate iron status. Iron-rich foods such as meat or supplements are needed. There is urgent need for immediate vitamin B12 supplementation for all vegetarian children and a general need for nutrition education to diversify all children’s diets
Adverse drug reaction reporting by community pharmacists in the Greater Accra Region of Ghana, 2016
Objectives: To assess adverse drug reactions (ADRs) reporting and identify factors to improve ADR reporting among community pharmacists in the Greater Accra Region of Ghana.Design: A quantitative cross-sectional study.Setting: Community pharmacies in the Greater Accra Region of Ghana.Participants: We randomly selected 210 pharmacists from a list community of pharmacies in Accra, Ghana. All participants had been practicing in the past one year, with this study being conducted from June to July 2016.Main outcome measure: Prevalence of ADR reporting by community pharmacists in Accra, Ghana.Results: Of the 210 community pharmacists interviewed 54.0% were males. Mean age was 32±10 years. Majority (96.0%) had heard of ADR reporting in Ghana, yet 18% had never seen the ADR reporting form. Reasons given for failure to report suspected ADRs included unavailability of reporting forms (83.1%), uncertainty about a causal relationship between the drug and the suspected ADR and classification of the reaction as ânormalâ with the medication being taken (23.6%). Only 34.0% of pharmacists had the ADR reporting forms available in their facilities. Marital status was the only factor significantly associated with ADR reporting (OR 3.18, 95%CI 1.02 â 9.12).Conclusion: ADR reporting by community pharmacists in Ghana remains low. To improve the proportion of reporting, ADR forms should be made available in all pharmacies, pharmacists and the general public should be made aware of online reporting systems, with continuous professional development in Pharmacovigilance with the advice that all suspected ADRs should be reported irrespective of uncertainty about causality
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