Wszystkie pola: Central Nigeria - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Petrographic and geochemical study of the Maastrichtian Ajali Sandstone, North Central Nigeria
Autorzy:: Ogala, J. E.
Olobaniyi, S. B.
Omo-Irabor, O. O.
Adaikpoh, E. O.
Powiązania:: https://bibliotekanauki.pl/articles/2059843.pdf
Data publikacji:: 2015
Wydawca:: Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:: petrography
geochemistry
Ajali Sandstone
provenance
tectonic setting
Opis:: he Upper Cretaceous Ajali Sandstone is an extensive stratigraphic unit of the Anambra Basin in southern Nigeria. It consists of friable, white cross-bedded sandstones exhibiting a fining upward sequence. Structures such as bioturbation, planar and herringbone cross beds indicate variability in depositional environment ranging from fluviatile to deltaic. Petrographic and geochemical compositions (major and trace elements) of these sandstones have been investigated to determine their provenance, tectonic setting and weathering conditions. Fifteen sandstone samples examined are rich in quartz but poor in feldspar and lithic fragments. Texturally, the framework grains of the sandstones are fine- to medium-grained, sub-angular to sub-rounded, moderately sorted to poorly sorted, positively skewed and leptokurtic. The sandstones are texturally immature as depicted by their sub-angular edges of grains, but mineralogically mature in terms of high percentage of quartz. The high chemical index of alteration (CIA) values (71.0–99.2%) for these sandstones suggests that they were derived from highly weathered rocks in the source area. The composition of the major oxides in the sandstones revealed that SiO2 (49.1–99.7%), Al2O3 (0.2–30.3%), Fe2O3 (0.4–1.8%) and TiO2 (0.06–3.2%) were the most abundant elements in all sandstone samples indicating a high detrital quartz and clay mineral content. The Al2O3/TiO2 ratios (1.47 to 12.48), Ti/Zr (6.48–18.63) and Zr/Cr (2.24–22.36) suggest that the sandstones were derived from variable basement complex rocks, including some contribution from mafic or ultramafic components. Inferences from the plots of K2O/Na2O versus SiO2 indicated a passive margin tectonic setting for the sandstones. The high loading of CaO and Na2O in more than 50% of the samples is indicative of terrigenous input, mainly in the form of carbonates and silicates. These results are generally consistent with a derivation of the sandstones from adjacent igneous and metamorphic basement complexes (Cameroon–Adamawa highlands and Oban Massif) while the extensive and blanket-like geometry of the Ajali Sandstone is indicative of an excellent reservoir for groundwater in the Anambra Basin.
Źródło:: Geological Quarterly; 2015, 59, 1; 79--90
1641-7291
Pojawia się w:: Geological Quarterly
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Conflict in Nigeria’s Agricultural Community; The Herders’ Perspective in North Central Nigeria
Autorzy:: Bwala, Madu Ali
Ogirima, Abdulazeez
Powiązania:: https://bibliotekanauki.pl/articles/1892150.pdf
Data publikacji:: 2020-07-08
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: Conflict, herder- farmer, conflict-resolution, stock route
Opis:: The crop farmer-herder conflict has taken a toll on the agricultural development of Nigeria. These two major players in the Nigerian agricultural sector, constitute a threat to their livelihood strategy. As a result of these conflicts, fortunes have been lost in terms of crops and livestock. Our study investigated conflict between herders and crop farmers in Kogi State, Nigeria. In general, a herdsman is responsible for the conflict experienced on the agricultural scene in Nigeria. This work presents the herders’ perspective to the lingering dispute. For the purpose of the study, purposive sampling method was used to select 3 locations in the state. Furthermore, we applied snowball sampling to select 40 herder respondents from each of the three locations; consequently, a total of 120 herders were sampled for the study. Data were collected through the use of structured interview schedules. Descriptive statistics, the 5 point Likert scale and Chi square test were used for the analyses. Among the identified causes of conflict one can enumerate: crop damage by cattle (72.5%), crop farmers encroachment onto cattle routes (47.5%), inadequate grazing reserves for cattle (70.0%), lack of access to water points (64.2%), pollution of water points leading to death of livestock (47.5%), intentional bush burning (66.7%), maiming/killing of stray cattle (74.2%), and blockade of stock route by farms (80.8%). Resolution of conflict situations was found to be carried out mostly by traditional institutions, i.e. the police, local authorities, courts and cattle breeders association through legal means and payment of compensation among others. Furthermore, the herdsmen also have strategies to prevent such conflicts; these are restriction of cattle, awareness of the existence of a stock route among members and use of the stock route. Therefore, we recommend the use of traditional institutions and support of the cattle breeders association to manage such conflicts in any case.
Źródło:: Journal of Agribusiness and Rural Development; 2020, 56, 2; 163-172
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Teachers’ Collective Efficacy as a Predictor of Students’ Academic Performance in North Central Nigeria
Autorzy:: Laro Ibrahim, Yusuf
Adebunmi Fasasi, Yunus
Adam Ishola, Mustapha
Suleiman, Yusuf
Powiązania:: https://bibliotekanauki.pl/articles/1837657.pdf
Data publikacji:: 2021-06-08
Wydawca:: Akademia Ignatianum w Krakowie
Tematy:: collective efficacy
senior secondary schools
academic performance
Opis:: Public secondary schools in Nigeria occupy a significant position for providing qualitative education, yet there has been increasing public discontent with the quality of students being produced in the country’s public secondary schools. Teachers are regarded as one of the resources necessary for achieving the goals of secondary education. It is against this backdrop that this study examined teachers’ collective efficacy as a predictor of students’ academic performance in North Central Nigeria. Three research questions and hypotheses were generated to guide the study, which made use of a correlation-type descriptive research design with a population consisting of all teachers in the North Central region. An instrument titled the Teachers’ Collective Efficacy Questionnaire (TCEQ) was developed to elicit pertinent data from the participants. Also, students’ academic achievement was measured. The results of the study revealed that no substantial nexus existed between the teachers’ experience and the students’ academic achievement. However, the teachers’ verbal encouragement was found to be an important predictor of the learners’ academic success. Similarly, the teachers’ academic emphasis was a significant predictor of the learners’ academic performance. Based on this, it was established that teachers’ collective efficacy is an important predictor that can be used to improve students’ academic achievement. The study recommended that education administrators should acquaint their staff with the importance of collective efficacy towards improving students’ academic performance. It was also recommended that the government should organize workshops, seminars, and conferences for the supervisors, principals, and teachers of schools on efficacy issues and that teachers should be well motivated to maintain a high degree of efficacy in their various schools.
Źródło:: Multidisciplinary Journal of School Education; 2021, 10, 1(19); 101-120
2543-7585
Pojawia się w:: Multidisciplinary Journal of School Education
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Analysis of efficiency differentials in Fadama III programme areas in Kogi State, Central Nigeria
Autorzy:: Ali, Sunday Ojochonu
Abu, Godwin Aijenu
Ater, Peter Iorhor
Aye, Goodness Chioma
Powiązania:: https://bibliotekanauki.pl/articles/2033349.pdf
Data publikacji:: 2022-04-04
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: Fadama III
farmers
beneficiaries
technical
allocative
efficiency
Opis:: Introduction: The impact of Fadama III programme on the efficiency levels of farmers in Kogi state, Nigeria was investigated. Materials and methods: Primary data were obtained with a questionnaire administered to 382 respondents selected through a stratified random sampling procedure. The Cobb-Douglas stochastic frontier production and cost functions were employed in the analyses. The resulting efficiency estimates for beneficiaries and non-beneficiaries were compared using the t-test. Major findings: Efficiency analyses indicate that the quantities of Seed, fertilizer and agrochemicals used were the drivers of technical efficiency among both categories of farmers, while costs of land, fertilizer and family labour were the drivers of allocative efficiency. Technical efficiency estimates for both categories of farmers were 0.79 and 0.71 respectively and respective allocative efficiency estimates were 1.22 and 1.44. Mean comparison of the technical efficiency levels indicated a t-estimate of 2.52 (α= 0.0124) in favour of the beneficiaries while a t-estimate of -24.56 (α= 0.000) indicated that beneficiaries were also more allocatively efficient. Conclusion: The beneficiaries, by acquiring skills and supports from Fadama III, became were more efficient than their non-benefiting counterparts. Continuous training will assist farmers to improve their efficiencies and reduce the noticed deficits.
Źródło:: Journal of Agribusiness and Rural Development; 2022, 63, 1; 51-59
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Comparative Proximate Analysis of Five Commercially Sold Maggi as Condiments in Gwagwalada, North Central, Nigeria
Autorzy:: Adeeko, E. L.
Shittu, G. A.
Adeeko, T. O.
Umar, M.
Powiązania:: https://bibliotekanauki.pl/articles/1075587.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: bioaccumulation
bouillon
condiments
heavy metal
mineral elements
proximate
Opis:: Determination of the proximate, nutritionally valuable mineral in five samples of food seasonings label as, A, B, C, D, & E food condiments readily consumed in Nigeria were obtained from Gwagwalada Central Market Abuja. Investigating the concentrations of some mineral elements such as, iron (Fe), zinc (Zn), and two heavy metals, cadmium (Cd) and lead (Pb) were carried out using AA320N Atomic Absorption Spectrophotometer (AAS) after acid digestion with 2:1 HNO3/HClO4. The result shows that all samples contained high levels of protein (13.63% ±0.53%) with mean value moisture, ash, fat, fiber, and carbohydrate for all samples levels being (3.94%±0.64%), (57.51% ±4.27%), (5.11% ±0.20%), (0.02% ±0.00%) and (18.41% ±0.41%) respectively. Sample D has high Fe concentration with (0.04 ±0.01 μg/g) and Sample B & C has low Fe concentration with (0.01 ±0.00 μg/g). Sample D & E has high Zn concentration with (0.03 ±0.01 μg/g) and sample A, B & C has low Zn concentration with (0.02 ±0.01 μg/g). In cadmium, sample A has the high concentration (0.03±0.01μg/g), sample B & D has the low Cd concentration (0.02 ±0.00 μg/g). Sample D had the high Pb concentration (0.05 ±0.00 μg/g), sample C had the low Pb concentration (0.02±0.01 μg/g). In conclusion, Fe, Zn, Cd and Pb were both present in low concentrations in all the samples analyzed. The presence of Cd and Pb in the food seasonings even at low concentration could prove fatal through bioaccumulation. The low level of the toxic metals, Pb and Cd indicates that these products meet the safe limits specified by most food standards.
Źródło:: World Scientific News; 2019, 122; 183-192
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Optimum Parameter Selection for the Morphometric Description of Watersheds: a Case Study of Central Nigeria
Autorzy:: Bilewu, S. O.
Sule, B.
Ayanshola, A.
Powiązania:: https://bibliotekanauki.pl/articles/952411.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: morphometry
runoff
eigenvalues
variance
correlation
Opis:: Hydrological models are very useful for predictions in many ungauged basins across the world. There are many hydrological models available for discharge data gen-eration with different complexities and varied input parameter requirements. Studies have shown that models with many input parameters do not necessarily perform better than those with few input parameters. Basin morphometric parameters play significant roles in the conversion of rainfall to runoff and obtaining good estimates of these parameters for use in runoff models is sometime challenging as Inaccurate input into models can propagate errors and make the models to perform poorly. This study employs the method of principal component analysis to reduce the number of morphometric parameters required to run a runoff model without losing any major information. Parameters for five selected study basins in central Nigeria were measured and analysed. The result shows that three morphometric parameters (Fitness Ratio, Ruggedness Number and Watershed Eccentricity) can adequately represent other parameters as an input into a runoff model for the basins. This reduces significantly the time and effort needed to compute all the parameters which in actual fact may not improve the quality or efficiency of the runoff model.
Źródło:: Journal of Ecological Engineering; 2015, 16, 4; 29-35
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Causes and Management Strategies of Violent Activities in Tertiary Education Institutions in North-Central Nigeria
Autorzy:: Abdulaziz, Isiaka
Balogun, Abdulrasaq Olatunji
Iyekolo, Alexander Olushola
Powiązania:: https://bibliotekanauki.pl/articles/1969051.pdf
Data publikacji:: 2018-12-31
Wydawca:: Wydawnictwo Adam Marszałek
Tematy:: causes
management strategies
violence
tertiary education institutions
Opis:: The presented descriptive study involved three hundred and sixty five (365) lecturers and one thousand one hundred and sixty two (1,162) students selected from twelve (12) tertiary education institutions spread across North-Central Nigeria, making a thousand five hundred and twenty seven (1,527) respondents for the study. The main instrument used to obtain data for this study was adapted questionnaire, two research questions and three hypotheses were formulated. The hypotheses were tested using the t-test statistical technique at 0.05 level of signifi cance. Sociologists, religious leaders, the government, homes and school management should embark on enlightenment campaign programs.
Źródło:: The New Educational Review; 2018, 54; 122-134
1732-6729
Pojawia się w:: The New Educational Review
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Late Holocene palaeoenvironment of Tse Dura, a Later Stone Age (LSA) rock shelter, north-central Nigeria
Autorzy:: Orijemie Emuobosa Akpo, Orijemie
Powiązania:: https://bibliotekanauki.pl/articles/2025245.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Microliths
Vegetation history
Plant management
Tiv
Middle Benue Valley
Nigeria
Nauki o Ziemi
Opis:: Palynological and archaeobotanical analyses were conducted on excavated sediments from Tse Dura, a Later Stone Age rock shelter in north-central Nigeria with the aim of reconstructing the environment conditions at the site within the last millennium. From 933 ± 29 BP to 802 ± 29 BP, the environment alternated between Guinea savanna with dry conditions, and secondary and riverine forests with humid conditions. During these periods of environmental fluctuations, the LSA populations engaged in the management of economic plants the most significant of which included Dioscorea spp. Pennisetum glaucum and Elaeis guineensis, and exploited wild plants such as Pavetta crassipes, Sarcocephalus latifolius and Lophira cf. lanceolata for dietary and ethnomedicinal purposes. Around 310 ± 30 BP cal, the environment became very wet after which it was succeeded by a drier period. It was during this period that Sorghum bicolor became prominent, and the environment attained its current status dominated by Guinea savanna elements and secondary forests.
Źródło:: Studia Quaternaria; 2018, 35; 41-53
1641-5558
2300-0384
Pojawia się w:: Studia Quaternaria
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: The estimation of an anthropogenic depth boundary using the magnetic susceptibility method in Kogi State, North-Central Nigeria
Autorzy:: Jatto, Salomon Sunday
Musa, Kizito O.
Mojisola, Usikalu R.
Powiązania:: https://bibliotekanauki.pl/articles/184353.pdf
Data publikacji:: 2020
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: magnetic susceptibility
anthropogenic
pollutants
soil profiles
Central Nigeria
Opis:: Magnetic susceptibility measurements remain one of the most reliable methods used to investigate the pollution of both surface and subsurface soil from metallic anthropogenic sources. Most of the geological rocks within the study area increase the susceptibility of the soil; however, knowing the natural background susceptibility of the parent rocks will give an idea of the anthropogenic influence on the susceptibility of the soil. This study was carried out in Kogi State, North Central Nigeria, with the aim of determining the depth of the boundary between the anthropogenic influences on soil magnetic susceptibility from those of a lithogenic origin. Magnetic susceptibility measurements were carried out on 1,760 soil samples, collected from 220 soil profiles at a depth of 80.0 cm and at intervals of 10.0 cm. From the spatial distribution of magnetic susceptibility maps at different depths, the boundary between the basement complex and the sedimentary basin was clearly demarcated. The result further shows the highest magnetic susceptibility values of 350–650 × 10−5 SI, which dominates the surface soil to a depth of 40.0 cm. At the depth of 40–50 cm, the result indicates the combination of a natural anthropogenic influence on soil magnetic susceptibility with an average of 250 × 10−5 SI. Furthermore, no evidence of layering along the depth sections was observed, suggesting that the soil profiles indicate areas mainly covered by anthropogenically influenced susceptibility, which were localized and restricted to commercial places within the state. This study reveals that the average depth of soil affected by anthropogenic pollutants is between 40–50 cm in commercial places and 20–30 cm in other places with less commercial activities.
Źródło:: Geology, Geophysics and Environment; 2020, 46, 1; 49-56
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Levels of some heavy metals in vegetables from artisanal mining sites of Dilimi River, Bukuru and Barkin Ladi North Central Nigeria: any public health concern?
Autorzy:: Orisakwe, O.E.
Dagur, E.A.
Mbagwu, H.O.C.
Udowelle, N.A.
Offor, S.J.
Powiązania:: https://bibliotekanauki.pl/articles/874851.pdf
Data publikacji:: 2018
Wydawca:: Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Opis:: Background. North Central Nigeria is the food basket of Nigeria but is also known for its artisanal mining with attendant public health consequences which is hitherto unquantified. Vegetables grown close to these mining sites may be contaminated with heavy metals. Objective. This study has estimated health risk associated with heavy metals HM (Cd, Cr, Cu, Zn, Se and Ni) in vegetables harvested inform the mining areas of Dilimi, Bukuru and Barkin Ladi by calculating the Daily intake, Target Hazard Quotient (THQ), Hazard Index (HI) and the Cancer risk (CR) for adults and children in the local population. Material and methods. Vegetable, soil, irrigation water and sediments samples were collected, digested, ashed and analyzed for HM using an Atomic Absorption Spectrometer (AAS). Results. The concentration of heavy metals in vegetables were in the order Cd < Se < Cr < Cu < Ni < Zn. There were higher HM levels in soil than vegetables samples. The daily intake of HM from vegetable consumption decreased in the following order Cd < Se < Cr < Cu < Ni < Zn. At least 62.5% of vegetable samples had THQ values > 1 in Dilimi, Bukuru and Barkin ladi (Adults) while 13% of vegetable samples had THQ values > 1 in children. The THQ of nickel ranged from 0.38-2.73 and 0.21-1.53 in adults and children respectively. The bio-concentration factor ranged from 0.026-7.52, 0.01-0.36 and 0.0011-1.23 in Dilimi, Bukuru and Barkin Ladi respectively for all the studied heavy metals. The cancer risk values ranged from 0.011-0.04 and 0.00066-0.02 across all the studied areas for adults and children respectively. HI values for adults were all >1 and also the total cancer risk was above the acceptable range of 10-4. Conclusion. Since THQ is > 1 in most of the samples, HI values > 1 for adults in all the vegetable and cancer risk above the acceptable limit consumption of vegetables from the study areas is not free of risk.
Źródło:: Roczniki Państwowego Zakładu Higieny; 2018, 69, 4
0035-7715
Pojawia się w:: Roczniki Państwowego Zakładu Higieny
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Assessment of child poverty in rural border communities of South-Werstern and Central Nigeria
Ocena ubóstwa dzieci w wiejskich społecznościach przygranicznych Południowo-Zachodniej i Środkowej Nigerii
Autorzy:: Popoola, K.O.
Powiązania:: https://bibliotekanauki.pl/articles/2048735.pdf
Data publikacji:: 2022-03-31
Wydawca:: Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:: child poverty
rural communities
rural border communities
poverty
Opis:: Subject and purpose of work: This study assessed child poverty in rural border communities of Nigeria. Materials and methods: Primary data were used and children (5-16years) were respondents to the questionnaire administration. Results: The study revealed that 58% were male while 42% were female. Also, many of the children were in the age bracket 11–15years and more than half (53.9%) of the children were without formal education and into farming. Most of the children (72.4%) earned between N3000 and N10000 as their monthly income. The results further revealed that in the three LGAs, female children experience severe poverty compared to their male counterparts. The study also revealed that the children were severely deprived of: safe drinking water, health facilities, education, sanitised environment especially because there were no toilet facilities in the areas. Conclusions: The study recommended the need for the provision of clean portable water, Basic health care and well-equipped primary and secondary schools.
Źródło:: Economic and Regional Studies; 2022, 15, 1; 107-125
2083-3725
2451-182X
Pojawia się w:: Economic and Regional Studies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Structural stability of exposed gully wall in Central Eastern Nigeria as affected by soil properties
Autorzy:: Igwe, C.A.
Ejiofor, N.
Powiązania:: https://bibliotekanauki.pl/articles/24078.pdf
Data publikacji:: 2005
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Źródło:: International Agrophysics; 2005, 19, 3; 215-222
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Soil strength of some Central Eastern Nigeria soils and effect of potassium and sodium on their dispersion
Autorzy:: Igwe, C.A.
Okebalama, C.B.
Powiązania:: https://bibliotekanauki.pl/articles/24225.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: sodium
physical property
linear extensibility
soil
coefficient
potassium
soil strength
Central-Eastern Nigeria
clay content
clay dispersion
Nigeria
Źródło:: International Agrophysics; 2006, 20, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: The influence of money supply on inflation in Nigeria
Autorzy:: Amassoma, Ditimi
Sunday, Keji
Onyedikachi, Emma-Ebere
Powiązania:: https://bibliotekanauki.pl/articles/522429.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Ekonomiczny w Katowicach
Tematy:: Central Bank of Nigeria
Error correction model
Granger causality
Opis:: Aim/purpose – The aim of this study is to empirically investigate the influence of money supply on inflation in Nigeria. The study was borne out of the curiosity to reexamine the immediate cause of the alarming rate of inflation in Nigeria which is adversely affecting the general welfare of Nigerian populace. Design/methodology/approach – The study employed co-integration test and error correction approach on annual time series data spanning from 1970 to 2016 to ascertain both the long run and short run dynamics relationship among the variables under consideration. Findings – The results showed that money supply does not considerably influence inflation both in the long and short run possibly because the country is in recession. The error correction model has the correct sign of negative and it is significant meaning that about 21% of the errors are corrected yearly. The Granger causality outcome demonstrates that, there is no causality between money supply and inflation in Nigeria within the study period and vice-versa. Research implications/limitations – The implication of this is often that there are different economic conditions which are key determinant of inflation in Nigeria. The study recommends that the government should diversify the economy, minimise importation by encouraging local production of products and services. The Central Bank of Nigeria should guarantee an exchange rate policy that is essentially determined by the state of the economy and not by speculators being a net importation economy. Also, the Central Bank of Nigeria should look inwards into the current interest rate and see how it can be regulated in such a way that will encourage private and foreign investors to be able to invest in the country. This in turn, successively increases income, infrastructure development and economic growth at large. Originality/value/contribution – This paper has been able to confirm that money supply is not a key factor that trigger up inflation in Nigeria.
Źródło:: Journal of Economics and Management; 2018, 31; 5-23
1732-1948
Pojawia się w:: Journal of Economics and Management
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Physicochemical Properties of Soils derived from Sandstone Parent Materials under Selected Land use types at Agoi-Ibami in Central Cross River State, Nigeria
Autorzy:: Eyong, M. O.
Akpa, E. A.
Powiązania:: https://bibliotekanauki.pl/articles/1076791.pdf
Data publikacji:: 2019
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Physicochemical properties
Sandstone
land use types
Opis:: Three profiles were sited on the major landscape elements of crest, middle slope and lower slope on three land uses; Forest (FS), Rubber (RS) and arable cropping (AS) at Agoi-Ibami in Central Cross River State, Nigeria. For study purposes, soil samples were collected from the morphogenetic horizons for the analysis of physical and chemical properties. Results showed that the surface horizon textures were mostly sandy loams with little sandy clay loam, while subsurface textures were mostly sandy clay loams with few silt clay loams and clays. The bulk densities were below the ranges of 1.46 to 1.63 g cm-3 for silts and clays and 1.75 g cm-3 for sands. This imposes stresses such as mechanical resistance to root penetration, decrease in cultivation and organic matter. The surface and subsurface pH values vary from 4.9–4.5 in FS, 4.9-4.6 in RS and 4.9 in AS, indicating that the soils are very strongly acidic. The Organic carbon contents was low with mean values of 4.33 and 0.6 % in surface and subsurface for FS, 2.10 and 0.50 % for surface and subsurface for RS, while surface and subsurface values proved to be 0.57 and 0.31 % for AS. The nitrogen contents was also low, mean values of 0.16 and 0.06 % for surface and subsurface for FS, 0.23 and 0.08 % for surface and subsurface for RS, and 0.19 and 0.10 % for surface and subsurface for AS. The content and available phosphorus are equally low, except for AS, with surface mean values ranging from 11.52 mg kg-1 to 13.87 mg kg-1. The exchangeable cations, Ca, Mg, K, and Na were very low, while exchangeable H+ and Al3+ were high. Base saturation was also low in FS and AS (< 50%) in surface soils, but higher in AS in the surface and in RS in the subsurface soils. The mean values of organic matter were 4.33 and 0.16 %. The land use should, therefore, be adjusted by application of recommended inorganic fertilizers and organic matter so as to support growth of crops such as maize, yams, cassava etc.
Źródło:: World News of Natural Sciences; 2019, 23; 1-12
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Contributions of rural-urban migrants’ remittances to farming household (HH) food security in Delta Central Agricultural Zone, Delta State, Nigeria
Udział środków finansowych przekazywanych przez osoby migrujące z obszarów wiejskich do miast w zapewnianiu bezpieczeństwa żywnościowego gospodarstw domowych rolników w Centralnej Strefie Rolniczej Delta w nigeryjskim stanie Delta
Autorzy:: Ofuoku, Albert Ukaro
Powiązania:: https://bibliotekanauki.pl/articles/952282.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Tematy:: rural-urban migrants
household food security
migrants’ remittances
internal migration
agricultural activities
osoby migrujące z obszarów wiejskich do miast
bezpieczeństwo żywnościowe gospodarstw domowych
przekazy pieniężne od osób migrujących
migracja wewnętrzna
działalność rolnicza
Opis:: This study was purposed to assess the contribution of rural-urban migrants’ remittances to household food security in Central Agricultural Zone of Delta State, Nigeria. Three (3) local government areas were randomly selected for this study from which three (3) rural communities were also randomly selected and 165 household heads were purposively selected from the communities. Primary data was collected from these household heads. Most household heads in the migrants’ households were males with average age of 55.5 years, were married and had some form of formal education. They had average farming experience of 21.30 years and average household size of 8.0 persons. Most migrated household members were in the age bracket of 20–30 years. The migrants remitted more money back home than was remitted to them. The food security index was 0.64. Remittances from migrated household members had significant and positive relationships with household food security. It was recommended that rural-urban migrants’ should continue to remit money to their households for continuous provision of food for the household members back home.
Celem niniejszego badania jest ustalenie, w jakim stopniu środki finansowe przekazywane przez osoby migrujące z obszarów wiejskich do miast przyczyniają się do zapewniania bezpieczeństwa żywnościowego gospodarstw domowych rolników w Centralnej Strefie Rolniczej Delta w nigeryjskim stanie Delta. Na potrzeby badania wybrano losowo trzy okręgi samorządowe, z których następnie wybrano losowo trzy gminy wiejskie. W ich obrębie metodą doboru celowego wytypowano 165 głów gospodarstw domowych, od których uzyskano dane podstawowe. Większość głów gospodarstw domowych stanowili żonaci mężczyźni o średniej wieku 55,5 roku, którzy zdobyli wykształcenie w ramach edukacji formalnej. W ujęciu średnim ich doświadczenie w prowadzeniu działalności rolniczej obejmowało okres 21,30 roku, a liczba osób w ich gospodarstwach domowych wynosiła 8,0. Większość migrujących członków gospodarstw domowych należała do przedziału wiekowego od 20 do 30 lat. Osoby te przekazywały do swoich domów więcej pieniędzy, niż same otrzymywały. Wskaźnik bezpieczeństwa żywnościowego wynosił 0,64. Przekazy pieniężne od migrujących członków gospodarstw domowych miały znaczny i dodatni wpływ na bezpieczeństwo żywnościowe gospodarstwa domowego. Zaleca się, aby osoby migrujące z obszarów wiejskich do miast w dalszym ciągu przekazywały środki pieniężne do swoich gospodarstw domowych w celu zapewnienia nieprzerwanych dostaw żywności do gospodarstwa domowego po ich powrocie do domu.
Źródło:: Journal of Agribusiness and Rural Development; 2017, 45, 3; 655-663
1899-5241
Pojawia się w:: Journal of Agribusiness and Rural Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 17.

Tytuł:: Non-Oil Tax Revenue and Infrastructural Development in Nigeria
Autorzy:: Oziegbe, David Jerry
Itua, Perpetual Omoyemi
Powiązania:: https://bibliotekanauki.pl/articles/31340672.pdf
Data publikacji:: 2024-05-20
Wydawca:: Uniwersytet Warszawski. Wydział Nauk Ekonomicznych
Tematy:: Autoregressive Distributive Lag
Non-oil Tax Revenue
Infrastructural Development
Opis:: In Nigeria, there has been a decline in oil revenue. This has impacted negatively on infrastructural development. This paper seeks to examine the effect of non-oil revenue as an alternative source of revenue for infrastructural development. The research design of the study was the ex post facto research design. The source of data was the secondary source and a time series of data from 1981 to 2021 was used in carrying out the research. The Autoregressive Distributed Lagged (ARDL) bounds test was used to determine the long-run and short-run relationship between the dependent and independent variables. It was observed that the variables are co-integrated, and as such, a long-run and short-run relationship exists among the explanatory variables. Furthermore, the ARDL short-run estimation result shows that the non-oil tax variables (proxied by VAT, CUSTD, and CIT) have a positive and significant effect on infrastructural development (proxied by total electricity production measured in Gigawatt hours (GWh) in Nigeria. In tandem, the ARDL long-run estimation results reveal that value-added tax, customs duties, and company income tax have a positive and significant impact on infrastructural development in Nigeria. Hence, an increase in the non-oil tax revenue base will boost infrastructural development in Nigeria in the long run. This finding is in tandem with the ARDL short-run estimation result. Therefore, it is inferred that Nigeria can experience infrastructural development when genuine commitment is made to explore an increase in non-oil revenue generation instead of being over-dependent on oil revenue.
Źródło:: Central European Economic Journal; 2024, 11, 58; 200-213
2543-6821
Pojawia się w:: Central European Economic Journal
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 18.

Tytuł:: Characteristic trace fossils from Miocene brackish-water deposits in the Niger Delta, Nigeria
Autorzy:: Ezeh, S. C.
Mode, W. A.
Ozumba, B. M.
Powiązania:: https://bibliotekanauki.pl/articles/94367.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:: Ichnoassociations
ichnology
salinity
Greater Ughelli
Central Swamp
Coastal Swamp
Neogene
ichnologia
zasolenie
neogen
Opis:: Miocene deposits in the eastern portion of the Greater Ughelli, Central Swamp and Coastal Swamp depobelts contain well-developed brackish-water trace fossil assemblages. Twelve ichnogenera have been identified, namely: Asterosoma, Bergaueria, Chondrites, Gyrolithes, Thalassinoides, Lockeia, Palaeophycus, ?Conichnus, Planolites, Siphonichnus, Skolithos and Diplocraterion. In addition, common non-descript, passively filled burrows and fugichnia (escape structures) have also been observed. The above-mentioned ichnogenera and associated non-descript structures can be arranged into six distinct and recurring ichnoassociations within the Greater Ughelli, Central Swamp and Coastal Swamp depobelts. Each ichnoassociation is comprised of a group of trace fossils which collectively reflect specific environmental conditions during deposition of these Miocene strata. All trace fossil assemblages illustrate deposition in nearshore, restricted settings. Ichnological and sedimentological criteria which may be utilized to recognise brackish-water deposits are discussed and illustrated in pictures of the cores studied.
Źródło:: Geologos; 2018, 24, 2; 111-125
1426-8981
2080-6574
Pojawia się w:: Geologos
Dostawca treści:: Biblioteka Nauki

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