Improved forage cultivation for increased in fodder availability and climate change mitigation in the Savanna agro-ecological zone of northern Ghana

The study was conducted to investigate the biomass yield and quality of two forage species Brachiaria ruziziensis (B. ruziziensis) and Sorghum almum (S. almum) in a Randomized Complete Block Design (RCBD) in two different locations (Bihinayili in the Savelugu District and Zanlerigu in the Nabdam District) in the Savanna agro-ecological zone of Ghana. Agronomic data were collected and representative samples of forage biomass taken at 60 days after planting to estimate dry matter yield and nutritive quality. The two-way interaction effect of forage species and experimental site was not significant for both agronomic and chemical parameters except for tiller number. The average leaf size was broader (P=0.006) in S. almum (299.0 cm2) than B. ruziziensis (85.0 cm2). Number of leaves per plant was higher (P=0.016) in B. ruziziensis (10.75). Number of tillers per plant in B. ruziziensis (9.62) was higher (P=0.001) than S. almum (2.88). Plant height was however, higher in S. almum (183.1 cm) than B. ruziziensis (90.1 cm). Dry matter yield of forages at 60 days after planting was higher (P<0.001) at Bihinayili (8.49 tons/ha) than that at Zanlerigu (2.23 tons/ha). The CP content of the forages at Bihinayili (89.7 g/kg DM) was also higher (P=0.018) than that at Zanlerigu (68.6 g/kg DM). Dry matter yield of B. ruziziensis (4.84 tons/ha) did not differ significantly from that of S. almum (5.88 tons/ha). In conclusion, B. ruziziensis and S. almum performed well within the Savanna agroecological zone and could enhance fodder supply and carbon sequestration

Review of critical success factors for the implementation of total quality management in the construction industry

Abstract: Total Quality Management (TQM) is a philosophy that involves every organization in the industry in the effort to improve performance. The concept is an integrative management principle for continuously improving the quality of products and processes to achieve customer satisfaction. To achieve this concept required a clear establishment of Critical Success Factors (CSFs). However, lack of clear establishment of CSFs for the implementation of TQM in the construction industry has led to failure of the system. In the pursuit of performance excellence in the construction industry and with an increasing awareness of construction quality, construction firms have no option than to implement TQM with clear CSFs

Manure characteristics of small ruminants fed agro by-products in the guinea savannah agro-ecological zone of Ghana

A 90 day study on evaluating quantity and quality of manure from small ruminants in the Guinea Savannah agro-ecological zone of Ghana was conducted. 36 goats and 36 sheep were random­ly allotted to three dietary treatments - Basal diets of maize stover, cassava and yam peels as Treatment one (T1), T1 supplemented with cowpea residues as Treatment two (T2) and T1 supplemented with groundnut residues as Treatment three (T3) in a randomized complete block design. Feed composition and intake and manure characteristics were assessed and data ana­lyzed statistically using Generalized Linear Model procedures of SAS at 5% significance level. The Chemical composition of feed resources ranged from 3.2-17.3% crude protein, 82-97.2% organic matter and 2.8-18% ash. Total feed intake ranged from 519.55-659.72 g/day and 331.84-420.17 g/day for sheep and goats respectively. Sheep manure weighed 319.17-423.33 g/day and contained 20.74-29.01% carbon, 1.87-2.32% nitrogen, 0.77-3.00 potassium, 9.52-26.50% ash, 0.44-0.77 pH and C:N ratio of 10.98-15.53. Goat manure weighed 178.67-216.17 g/day with 19.58-30.61%, 1.56-2.21% nitrogen, 0.82-2.33% potassium, 10.75-19.80% ash, 0.37-1.47 pH and C:N ratio of 9.49-19.92. Results indicated that manure from small ruminants could serve as alternative source of fertilizer in Ghana since its characteristics compare well with chemical fertilizers. Keywords: sheep; goats; feed resources; manure; fertilizer

Primary beam effects of radio astronomy antennas -- II. Modelling the MeerKAT L-band beam

After a decade of design and construction, South Africa's SKA-MID precursor MeerKAT has begun its science operations. To make full use of the widefield capability of the array, it is imperative that we have an accurate model of the primary beam of its antennas. We have taken available L-band full-polarization 'astro-holographic' observations of three antennas and a generic electromagnetic simulation and created sparse representations of the beams using principal components and Zernike polynomials. The spectral behaviour of the spatial coefficients has been modelled using discrete cosine transform. We have provided the Zernike-based model over a diameter of 10 deg averaged over the beams of three antennas in an associated software tool (EIDOS) that can be useful in direction-dependent calibration and imaging. The model is more accurate for the diagonal elements of the beam Jones matrix and at lower frequencies. As we get more accurate beam measurements and simulations in the future, especially for the cross-polarization patterns, our pipeline can be used to create more accurate sparse representations of MeerKAT beams.Comment: 16 pages, 18 figures. This is a pre-copyedited, author-produced PDF of an article accepted for publication in MNRAS following peer review. The version of record [K. M. B. Asad et al., 2021] is available online at: https://doi.org/10.1093/mnras/stab10

Effect of Solar Tracking on the Economic Viability of a Large-Scale PV Power Plant

This paper evaluated the economic potential of three different photovoltaic energy technologies at a selected site, Wa, in the Upper West region of Ghana. The cost of energy and net present value metrics were used to ascertain the cost-effectiveness of these technologies (fixed, single and double axis tracker systems). From the analysis, all three technologies are economically viable at the selected site, however, a sensitivity analysis shows that the fixed axis tracker is unviable at a discount rate above 2 % whiles that of the single and double axis power plants also become impracticable at a discount rate above 6 % using the financial input parameters adopted for the study. This is an indication that, even though the selected site may have the required solar radiation for the development of large-scale PV power plant, there is the need to create the necessary conducive financial environment to enable such projects to become viable. The double axis tracking system was identified as the optimum system that should be deployed at the selected site to get the best in terms of affordability of electricity to consumers and equity payback. © 2020 Ephraim Bonah Agyekum et al., published by Sciendo 2020

Nuclear energy for sustainable development: SWOT analysis on Ghana's nuclear agenda

The development of clean and sustainable energy around the world has become a necessity as a result of the negative effect energy generated from fossil fuel have on the environment. Ghana intends to add nuclear power to its generation mix by 2029. This paper uses the SWOT analysis tool to assess the internal strengths and weaknesses as well as the external opportunities and threats in the country relative to its nuclear power program. We found out that despite the country's effort towards meeting the requirements for the licensing, contracting, construction and operation of the facility, there are still some important loopholes which could delay the process. The research found out that Ghana has a lot of strengths and opportunities that makes an investment in nuclear power an economically viable option. However, issues such as porous security system, corruption, porous borders and policy discontinuity due to changes in political power are threats to the smooth implementation and operation of a nuclear power plant. The research therefore recommended to the government of Ghana to pay critical attention to some of these loopholes. We also looked at a particular weakness which is financing and provided some funding options for its development. © 2019 The Author

Profile and outcomes of hospitalized patients with COVID-19 at a tertiary institution hospital in Ghana

Background: In high-income countries, mortality related to hospitalized patients with the Coronavirus disease 2019 (COVID-19) is approximately 4-5%. However, data on COVID-19 admissions from sub-Saharan Africa are scanty.Objective: To describe the clinical profile and determinants of outcomes of patients with confirmed COVID-19 admitted at a hospital in Ghana.Methods: A prospective study involving 25 patients with real time polymerase chain reaction confirmed COVID-19 admitted to the treatment centre of the University Hospital, Kwame Nkrumah University of Science and Technology (KNUST), Kumasi, Ghana from 1st June to 27th July, 2020. They were managed and followed up for outcomes. Data were analysed descriptively, and predictors of mortality assessed using a multivariate logistic regression modelling.Results: The mean age of the patients was 59.3 ± 20.6 years, and 14 (56%) were males. The main symptoms at presentation were breathlessness (68%) followed by fever (56%). The cases were categorized as mild (6), moderate (6), severe (10) and critical (3). Hypertension was the commonest comorbidity present in 72% of patients. Medications used in patient management included dexamethasone (68%), azithromycin (96%), and hydroxychloroquine (4%). Five of 25 cases died (Case fatality ratio 20%). Increasing age and high systolic blood pressure were associated with mortality.Conclusion: Case fatality in this sample of hospitalized COVID-19 patients was high. Thorough clinical assessment, severity stratification, aggressive management of underlying co-morbidities and standardized protocols incountry might improve outcomes

Children's Medicines in Tanzania: A National Survey of Administration Practices and Preferences.

The dearth of age-appropriate formulations of many medicines for children poses a major challenge to pediatric therapeutic practice, adherence, and health care delivery worldwide. We provide information on current administration practices of pediatric medicines and describe key stakeholder preferences for new formulation characteristics. We surveyed children aged 6-12 years, parents/caregivers over age 18 with children under age 12, and healthcare workers in 10 regions of Tanzania to determine current pediatric medicine prescription and administration practices as well as preferences for new formulations. Analyses were stratified by setting, pediatric age group, parent/caregiver education, and healthcare worker cadre. Complete data were available for 206 children, 202 parents/caregivers, and 202 healthcare workers. Swallowing oral solid dosage forms whole or crushing/dissolving them and mixing with water were the two most frequently reported methods of administration. Children frequently reported disliking medication taste, and many had vomited doses. Healthcare workers reported medicine availability most significantly influences prescribing practices. Most parents/caregivers and children prefer sweet-tasting medicine. Parents/caregivers and healthcare workers prefer oral liquid dosage forms for young children, and had similar thresholds for the maximum number of oral solid dosage forms children at different ages can take. There are many impediments to acceptable and accurate administration of medicines to children. Current practices are associated with poor tolerability and the potential for under- or over-dosing. Children, parents/caregivers, and healthcare workers in Tanzania have clear preferences for tastes and formulations, which should inform the development, manufacturing, and marketing of pediatric medications for resource-limited settings

Obstetric referral processes and the role of inter-facility communication: the district-level experience in the Greater Accra region of Ghana

Objective: To describe the capacity of primary health care facilities to manage obstetric referrals, the reasons, and processes for managing obstetric referrals, and how an enhanced inter-facility communication system may have in-fluenced these Design: Mixed methods comparing data before and during the intervention period. Setting: Three districts in the Greater Accra region, Ghana from May 2017 to February 2018 Participants: Referred pregnant women and their relatives, health workers at referring and referral facilities, facility and district health managers. Intervention: An enhanced inter-facility communication system for obstetric referrals Results: Twenty-two facilities and 673 referrals were assessed over the period. The major reason for referrals was pregnancy complications (85.5%). Emergency obstetric medicines - oxytocin and magnesium sulfate (MgSO4) were available in 81.8% and 54.5% facilities, respectively, and a health worker accompanied 110(16.3%) women to the referral centre. Inter-facility communication about the referral occurred for 240 (35.7%) patients. During the interven-tion period, referrals joining queues at the referral facility decreased (7.8% to 0.0%; p=0.01), referrals coming in with referral notes improved (78.4% to 91.2%) and referrals with inter-facility communication improved (43.1% to 52.9%). Health workers and managers reported improvement in feedback to lower-level facilities and better filling of referral forms. Conclusion: Facilities had varying levels of availability of infrastructure, protocols, guidelines, services, equipment, and logistics for managing obstetric referrals. Enhanced inter-facility communication for obstetric referrals which engages health workers and provides requisite tools, can facilitate an efficient referral process for desired outcomes

"Even if the test result is negative, they should be able to tell us what is wrong with us": a qualitative study of patient expectations of rapid diagnostic tests for malaria.

BACKGROUND: The debate on rapid diagnostic tests (RDTs) for malaria has begun to shift from whether RDTs should be used, to how and under what circumstances their use can be optimized. This has increased the need for a better understanding of the complexities surrounding the role of RDTs in appropriate treatment of fever. Studies have focused on clinician practices, but few have sought to understand patient perspectives, beyond notions of acceptability. METHODS: This qualitative study aimed to explore patient and caregiver perceptions and experiences of RDTs following a trial to assess the introduction of the tests into routine clinical care at four health facilities in one district in Ghana. Six focus group discussions and one in-depth interview were carried out with those who had received an RDT with a negative test result. RESULTS: Patients had high expectations of RDTs. They welcomed the tests as aiding clinical diagnoses and as tools that could communicate their problem better than they could, verbally. However, respondents also believed the tests could identify any cause of illness, beyond malaria. Experiences of patients suggested that RDTs were adopted into an existing system where patients are both physically and intellectually removed from diagnostic processes and where clinicians retain authority that supersedes tests and their results. In this situation, patients did not feel able to articulate a demand for test-driven diagnosis. CONCLUSIONS: Improvements in communication between the health worker and patient, particularly to explain the capabilities of the test and management of RDT negative cases, may both manage patient expectations and promote patient demand for test-driven diagnoses