A Review of the Petrography and Geochemical Characteristics of the Pan African Granites in the Nigerian Precambrian Basement Complex

Communication in Physical Sciences, 2021, 7(4): 289-311 Authors: Ibe Chinedu Uduma*, Orunna Chidiebere and Aghaebita Ifeoma Chinwendu Received: 24 September 2021/Accepted 26 November 2021 A compilation and review of the grantoids within the Nigerian Precambriam Basement complex is presented. The granitoids or granitic rocks in the Nigerian Precambrian basement complex have been studied by several researchers for about sixty decades now. The studies had included their field relationship, petrography, and major element chemistry only. In recent times, detailed geochemical data, including major-, trace-and rare-earth elements have been obtained and used in assessing the petrogenetic and tectonic evolution of the granitoids. The rocks consist of porphyritic/porphyroblastic muscovite granites, biotite granites, hornblende-biotite granites/granodiorites, non porphyritic/non-porphyroblastic granites, aplites, granodiorites, diorites, quartz diorites, syenites/syenogranites, quartz-charnockite/charnockites. They are predominantly alkali-calcic to calc-alkalic and strongly peraluminous and were most likely derived from partial melting of crustal materials in an orogenic (post-collisional) tectonic setting. The granitoids are products of anatectic melting of the highest grade of amphibolite facies regional metamorphism of the surrounding peraluminous schists and gneisses. Some are, however, products of partial melting of hornblende-rich (igneous) crustal sources due to their metaluminous character. Radiometric age data reveal that they were emplaced at about 638 to 539 ± 8 Ma (Neoproterozoic-Pan-African)

Cross-sectional review of prescription practices of triple action creams amongst doctors in South-east Nigeria

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COVID-19 and COVID-19 vaccination experiences and perceptions among health workers during the pandemic in Ebonyi state, Nigeria: An analytical cross-sectional study.

BackgroundCOVID-19 continues to be a disease of global public health importance and requires long-term management and control. Health workers' (previous) experiences and perceptions regarding the COVID-19 pandemic and COVID-19 vaccination/vaccination process will influence not only their subsequent use of control measures but also public experiences/perceptions. We explored the COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions, and their predictors, among the health workers in Ebonyi state, Nigeria.MethodsWe conducted an online-offline analytical cross-sectional survey between March 12 and May 9, 2022 among all categories of health workers (clinical/non-clinical, public/private) working/living in Ebonyi state who consented to participate and were selected by convenience/snowballing techniques. A structured electronic questionnaire was used to collect data: self-administered via WhatsApp and interviewer-administered via KoBoCollect for participants who did not have WhatsApp. Data was analysed using descriptive statistics and bivariate/multivariate generalized linear models.ResultsOf the 1276 health workers surveyed: 55.8% had strong COVID-19 experience and perception, 80.7% had good COVID-19 vaccination expectation and perception, and 87.7% had positive COVID-19 vaccination process experience and perception. The most important predictors of the extent and level of COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions were level of place of work (primary-secondary/tertiary), level of attitude towards COVID-19 (vaccination), and level of knowledge about COVID-19. Another important predictor was place of work (public/private).ConclusionsThe evidence indicate the factors that should guide subsequent policy actions in the strategies to enhance the COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions of health workers (and their use of control measures) in Ebonyi state, Nigeria, and other similar contexts. It also indicate factors to be considered by future policy actions regarding similar diseases

COVID-19 and COVID-19 vaccination experiences and perceptions and their predictors among community members during the COVID-19 pandemic in Ebonyi state, Nigeria: an analytical cross-sectional study

Abstract Background COVID-19 is still a disease of global public health importance which requires long term application of control measures as millions of new infections or re-infections and thousands of related deaths still occur worldwide and the risk of an upsurge from new strains of the virus continues to be a threat. The decrease in the use of and non-use of preventive public health measures are among the factors fuelling the disease. The (previous) experiences and perceptions of people regarding the COVID-19 pandemic, COVID-19 vaccination, and the vaccination process are factors that will influence subsequent use of preventive/control measures. We explored the COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions, and their predictors, among the community members in Ebonyi state, Nigeria. Methods We conducted an analytical cross-sectional study between March 12 and May 9, 2022 among all consenting/assenting community members aged 15 years and above in 28 randomly selected geographical clusters. A structured interviewer-administered electronic questionnaire in KoBoCollect installed in android devices was used to collect data which was analysed using descriptive statistics and bivariate and multivariate generalized estimating equations. Results Of the 10,825 community members surveyed: only 31.6% had strong COVID-19 experience and perception, 72.2% had good COVID-19 vaccination expectation and perception, and only 54.2% had positive COVID-19 vaccination process experience and perception. The most important predictors of the extent/level of COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions were level of attitude towards COVID-19 and COVID-19 vaccination and level of knowledge about COVID-19. Other important predictors were marital status, educational level, and main occupation. Conclusions This study’s evidence, including the identified predictors, will inform subsequent policy actions regarding COVID-19 in the strategies to improve the COVID-19 and COVID-19 vaccination and the vaccination process experiences and perceptions of community members (and their use of preventive/control measures) in Ebonyi state and Nigeria, and other similar contexts. It will also inform future policy actions/strategies regarding similar diseases

Additional file 1 of COVID-19 and COVID-19 vaccination experiences and perceptions and their predictors among community members during the COVID-19 pandemic in Ebonyi state, Nigeria: an analytical cross-sectional study

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