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Evaluation of mechanical strain resulting from working with two locally fabricated engine powered stationary grain thresher
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Technical efficiency of lumber recovery from high forest tree species in selected sawmills of Southwestern Nigeria
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- Binary mixtures of microcrystalline cellulose MCC (A), and lactose (L) in ratios at 75:25, 50:50, and 25:75% respectively were prepared. The binary mixtures were subjected to microscopical analysis and density measurements. The mechanical properties of paracetamol tablets formulated with the above excipients were assessed for tensile strength, bonding capacity (using the Ryshkewitch-Duckworth relation) and friability, while drug release properties were assessed for disintegration and dissolution times. The dissolution profiles were fitted into dissolution model equations to determine release mechanism and similarity of release. Microscopic analysis showed that the lactose particles were large, crystalline, and acicular in shape whereas the MCC particles were smaller and irregularly shaped. The binary mixtures had particle shape and sizes in between the parent compounds. The particle size of A25:L75 however, was larger than that of the proprietary brand, Microcelac®. Bulk and tapped densities increased with increasing amounts of MCC in the binary mixtures while particle density had an inverse relationship. Tablets containing A75:L25 had the highest tensile strength and bonding capacity and lowest friability in comparison to other binary mixtures and Microcelac®. However, tablets containing A75:L25 did not show superiority to Microcelac® in terms of paracetamol release. Its release, however, followed the Korsmeyer-Peppas model indicating a super case II transport mechanism. Only comparisons of tablet combinations of Lactose: A25:L75 and MCC: A50:L50 had a similarity factor, f2 >50. Tablets made of A75:L25 exhibited the highest mechanical and release properties of the binary mixtures, as directly compressible excipient in comparison to the parent compounds and Microcelac®. This mixture, A75:L25 therefore, could be developed for commercial use in tablet formulations. 2 results 2
- Bone setter 2 results 2
- Clay Silo 2 results 2
- Climate change 2 results 2
- Drought tolerance 2 results 2
- Gender stereotypes influence people’s expectations and evaluations of what is appropriate for them and others. Gender stereotypes tend to exaggerate perceived differences of members of different groups and the perceived similarities of a particular man or woman to the general categories of male and female, which, in a way, can have a large effect on the way both sexes see themselves and how they are perceived in social relations. Studies have shown that the Nigerian film industry has the capacity to provide a platform for the positive promotion of Nigerian values. This paper examined the patterns of stereotypes being reinforced in Nigerian films and how these patterns affect the image of Nigerian women. It suggests that adequate information on gender issues such as abrogation of discriminatory customs, empowerment for low income women and men, reorientation of male chauvinism can be possible by using the platform of films to change gender stereotyping of women and projecting their positive images in Nigeria. 2 results 2
- Grain Quality 2 results 2
- Injury 2 results 2
- Level of Fill 2 results 2
- Maize 2 results 2
- Orthopaedic 2 results 2
- Postharvest losses 2 results 2
- Silos have a fixed volume at the time of construction; harvests however vary from season to season. Complaints about severe postharvest losses in grains in the humid tropics of southern Nigeria necessitated a study into the effect of fill volume on quality of stored maize. Three clay silos labelled S1 to S3 of the same dimension and capacity (3.5 metric tonnes) were used. The silo walls were painted externally with gloss paint to reduce water absorption and filled with shelled maize. The first silo (S1) was filled with 3 tonnes, the second silo (S2) with 2 tonnes and the third (S3) filled with a tonne of maize for 6 months. Data was collected on microclimatic conditions within the silo and grain quality with increasing time of storage. Temperature, relative humidity (RH) and equilibrium moisture content (EMC) were recorded three times daily for each silo, focusing on the air between the grains and the headspace above the grains. Temperature fluctuations within S1 were smaller as indicated by the statistical range of 2 oC compared to S2 and S3 at 7 and 8 oC respectively. S3 showed high values of RH toward the end of storage, ranging between 65% to 80% at the top level and 76% at the bottom. EMC at the airspace above the grains in S1 increased from 12.0% at the beginning of storage in the dry season to 15.6% at the end of storage in the rainy season compared with S2 and S3 which increased from 12.0 to 17% and 12.0 to 17.2% respectively. Grains were found to be more prone to deterioration with decreasing level of fill because and increase in microbial activity was observed with a decreasing level of fill. Recommendations were made to farmers and grain aggregators on proper actions to take during grain storage given the peculiarities of the humid tropics. 2 results 2
- Traditional 2 results 2
- Utilization 2 results 2
- "A flat-type, 60-egg capacity incubator was designed, constructed and tested. The incubator differs from existing designs in that the cabinet was made from a 3-ply, 4mm thick interior grade plywood to reduce cost and at the same time enhance heat insulation. Also, two domestic kerosene lanterns were provided to supplement heat generation by three 40 W electric bulbs during electricity outages as commonly experienced in Nigeria.When tested with 30 eggs of a commonly sold chicken breed, incubated at average temperature of 38° C and relatively humidity of 58%, the chicks were hatched within 20 days. Relatively high percentages of fertility and hatchability of 86.2% and 76% respectively, as well as a relatively low chick mortality rate of 18.5% were recorded. " 1 results 1
- "Background: Non-governmental organisations (NGOs) are expected to be in the vanguard, repositioning reproductive health as a central issue in population and development in Nigeria. However, most of them have insufficient knowledge or access to policy and planning processes necessary at engaging effectively with the government. This article highlights the processes and outcome of an intervention aimed at strengthening the capacity of 12 non-governmental organisations on advocacy and policy related activities with emphasis on reproductive health issues. Methods: The study employed a one group, pre and post test study design. Thirty six (36) staff from 12 NGOs was purposively selected and interviewed using a semi-structured questionnaire at baseline to assess their knowledge and level of involvement in reproductive health, advocacy and policy issues. In-depth interviews were conducted with 6 officials of the ministries of health and women affairs to document previous reproductive health and policy related collaborative efforts with the NGOs. Baseline findings were used in developing and implementing a capacity building intervention. A post intervention evaluation was conducted to assess the outcomes. Results: All respondents (100 %) had tertiary level education and were from a multidisciplinary background such as nursing (41.7 %) medicine (25 %) and administration (13.9 %). The mean knowledge score on advocacy and policy issues at pre-test and post test was 39.1 ± 17.6 and 76.2 ± 14.2 respectively (p = 0.00). Participants reported making use of advocacy methods and the three most utilized were Phone calls (28.1 %), Face to Face meetings (26 %) and networking with other organisations for stronger impact (17.1 %). The outcome of their advocacy efforts include the provision of free air time by a television station to educate the populace on maternal health issues, donation of landed property to build a youth friendly centre, donation of a blog site for disseminating information on Reproductive health issues and training of other staff of their organisations on advocacy activities. The major challenges experienced by staff of the NGOs were financial (89 %) and time constraints (11 %). Conclusion: Empowered non-governmental organisations can effectively advocate for the implementation of reproductive health policies and programmes. 1 results 1
- "Clay bodies occur as lenses and interbeds within the predominantly shaley Akinbo Formation in the eastern Dahomey Basin. They are greenish to grayish, plastic, and in some places contain concretions. In order to assess their sedimentological significance as well as evaluate their potential as industrial raw materials, representative outcrop arid borehole samples .were subjected to mineralogical, chemical and physical characterization. Mineralogical determination by X-ray diffraction (XRD) method, indicates kaolinite as the major clay mineral, with a range of 32.86-58.33%. Other constituents are illite (4.95%), smectite (2.87-14.29%) and palygorskite (2.87%). The non-clay minerals are quartz, K-feldspar, micas and graphite. In terms of chemical composition, the clay bodies. are characterised by the following; Si02 (52.96-55.84%), Al2O3 (16.22-17.74%) Fe203 (7.13-10.35%); CaO (4.65-7.95%)-; MgO (2.26-3.98%) while Na20, K2O, MnO, Ti02 and P2Os have individual values < 1%. The relatively high CaO reflect some contribution from the limestone bed underlying this formation. The clay specimens generally display colour ranging from grayish in fresh, to brownish-red on firing. Corresponding values of physical parameters include linear shrinkage (3.75-7.50%), plastic limit (23- 31%), liquid limit (48-56%), plasticity index (21-30%) and water absorption capacity (5.80-11.90%). The average silica sesquioxide and alumina-iron oxide ratios are respectively 2.17 and 2.08. These values are within the range suitable for clays or shales to be used in the manufacture of good quality cement. The clays have high silica content and are relatively rich in fluxing elements such as Ca and Mg, and could be utilized in the manufacture of domestic and sanitary earth wares. The high plasticity as reflected by the values of the relevant physical indices, and the general fineness qualify the clays to be useful as fillers or coating materials in paper and paint industries. They could also be useful in the production of construction bricks, ceramics, and with beneficiation, the quality might improve for other applications. " 1 results 1
- "The aim of this study is to look at quality of work life (QWL) and workers wellbeing through an industrial social workers approach. 264 employees randomly selected from confectionary organizations participated in this study. Five variables to measure QWL: (job satisfaction (JS), capacity development (CD), work and non-work .life balance (WLB), emotional supervisory support (ESS), organizational support (OS), were used to measure health and wellbeing of employees in the workplace. The test indicated the joint effect of the independent variables contributed significantly to the wellbeing of employees (F5, 245=49.039, p<0.05). Using the multiple linear regression, each of the five independent variables are significantly related to workers wellbeing in the following descending order: job satisfaction (t=7.271, β=375), capacity development (t=6.26, p=.269), work and non-work life balance (t=4.108, (3=.214), organizational support (t=3.986, β =.201) and emotional supervisory support (t=2.655, β=.136). It was recommended that a proper understanding of the construct of QWL and the dynamic nature will enable human resource practitioners and industrial social workers take proactive steps in integrating relevant strategies, policies, training programs, procedures and coping strategies to improve the quality of work life of employees so as to guarantee their wellbeing. " 1 results 1
- A substantial proportion of patients with chronic kidney disease (CKD) develop iron deficiency anaemia (IDA). Despite the association of IDA with adverse cardiovascular outcomes, it remains underdiagnosed and poorly managed. Up to 70% of patients with CKD are anaemic at the time of initiating dialysis, while the predictors of IDA in these patients in our setting are unknown. This study aimed to determine the prevalence and risk factors for IDA in patients with CKD. Materials and Methods: This is a case–control study of 157 patients with CKD and 157 age and gender matched subjects without CKD. Information obtained from the participants were socio demographic details, aetiology of CKD, medication history and features of IDA. All participants had serum ferritin, total iron binding capacity (TIBC), transferrin saturation (TSAT), highly sensitive C reactive protein, serum creatinine and complete blood count determined. Results: The median estimated glomerular rate (22.7 [3.4–59.5] vs. 110.2 [60.3–152.8] ml/min/1.73 m2 , P < 0.01), the mean haemoglobin concentration (9.3 ± 2.6 vs. 11.4 ± 1.7 g/dl, P < 0.01), and TSAT (27.9% ± 6.4% vs. 34.8% ± 8.1%, P < 0.04) were significantly lower in patients with CKD. The mean age, serum ferritin and TIBC were similar in both groups. The prevalence of absolute (24.8% vs. 13.4%, P < 0.01) and relative (17.8% vs. 7.6%, P < 0.01) iron deficiencies were higher among individuals with CKD compared to the controls. Female gender (odd ratio [OR]:1.50, 95% confidence interval [CI]:1.0267–4.1163, P < 0.04) and severity of CKD (OR: 3.43, 95% CI: 1.5568–7.8324, P < 0.02) were independently associated with IDA. Conclusion: IDA is common among individuals with CKD while female gender and severity of CKD were factors that independently predicted IDA 1 results 1
- Abelmoschus Esculentus 1 results 1
- Academic Programme 1 results 1
- Access to university education 1 results 1
- Adolescent perinatal depression"· Primary care"· Social support"· Theory"· mHealth 1 results 1
- Advocacy 1 results 1
- Agro-Ecological Zones in Nigeria 1 results 1
- Aims In low and middleincome countries (LMIC) in general and sub-Saharan African (SSA) countries in particular, there is both a large treatment gap for mental disorders and a relative paucity of empirical evidence about how to fill this gap. This is more so for severe mental disorders, such as psychosis, which impose an additional vulnerability for human rights abuse on its sufferers. A major factor for the lack of evidence is the few numbers of active mental health (MH) researchers on the continent and the distance between the little evidence generated and the policymaking process. Methods: The Partnership for Mental Health Development in Africa (PaMD) aimed to bring together diverse MH stakeholders in SSA, working collaboratively with colleagues from the global north, to create an infrastructure to develop MH research capacity in SSA, advance global MH science by conducting innovative public health relevant MH research in the region and work to link research to policy development. Participating SSA countries were Ghana, Kenya, Liberia, Nigeria and South Africa. The research component of PaMD focused on the development and assessment of a collaborative shared care (CSC) program between traditional and faith healers (T&FHs) and biomedical providers for the treatment of psychotic disorders, as a way of improving the outcome of persons suffering from these conditions. The capacity building component aimed to develop research capacity and appreciation of the value of research in a broad range of stakeholders through bespoke workshops and fellowships targeting specific skillsets as well as mentoring for early career researchers. Results: In the research component of PaMD, a series of formative studies were implemented to inform the development of an intervention package consisting of the essential features of a CSC for psychosis implemented by primary care providers and T&FHs. A cluster rand was next designed to test the effectiveness of this package on the outcome of psychosis. In the capacity building component, 35 early and midcareer researchers participated in the training workshops and several established mentor mentee relationships with senior PaMD members. At the end of the funding period, 60 papers have been published and 21 successful grant applications made. CONCLUSION: The success of PaMD in energising young researchers and implementing a cutting-edge research program attests to the importance of partnership among researchers in the global south working with those from the north in developing MH research and service in LMIC. 1 results 1
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