36 research outputs found
A Comparative Analysis of Women Candidatures and Outcomes in the 2011 and 2015 Nigeria General Elections
One noticeable development in the Nigeria’s 2015 general elections is the differentials in the numbers and outcomes of women involvement as candidates in comparison to the 2011 elections. The percentage of women contesting for presidential position decline from 12.5% in 2011 to 7.1% in 2015. That of the gubernatorial election also witnessed a reduction from 10.2% in 2011 to 7.1% in 2015, while the percentage of women for deputy governorship positions was relatively stable with only an increase of 0.4%. However, there was a double increment in the contestations for Senatorial posts from 10.3% in 2011 to 22.2% in 2015. Also, the number of women candidacy into the House of Representative and State Houses of Assembly recorded an increase of 5.7% and 5.6% respectively. However, when it comes to actual successes at the polls, the outcomes were not encouraging. With the exemption of deputy governorship number that improved from 2.8% in 2011 to 13.8% in 2015, all others witnessed a sharp decline. While Presidential and Governorship numbers returned nil percentages, there were shortfalls of 1.8% and 2.5% of women elected into the Senate and the House of Representatives respectively. Given the presence of 35% affirmative action and incentives introduced by various parties, some questions arise: Why do the positive changes refused to come? What does this say about the Nigerian society?......
Studies on Some Physical Properties of Dikanut Seeds
The physical properties of dikanut seeds sold in Nigerian markets were determined. The dried seeds were evaluated for the principal dimensions, weight, volume, true density, bulk density, and porosity, angle of repose, static coefficient of friction and specific heat capacity. The average three principal dimensions were 2.375, 1.592 and 0.778cm. The seeds had an average weight of 1.904g, volume of 2.38cm3, density of 0.832g/cm3, bulk density of 0.475g/cm3, porosity of 43%, and surface area of 3.468cm2. Angle of repose and coefficient of friction varied quadratically with moisture content. The specific heat capacity of dikanuts was measured at four moisture contents and eight temperatures. The specific heat of dikanut varied from 1.9333J/g?C to 6.075J/g?C for moisture contents between 3% and 30% and those that were used to model multiple simple regression equations expressing specific heat as a function of moisture content. Key words: Dikanut, seed, dimension, specific heat capacit
Comparative Analysis of Ecological Footprint of Urban and Rural Households in Minna Emirate of Niger State, Nigeria
Nigeria is an unsustainable country due to ecological deficit arising from the excessive utilisation of natural resources. Resources are consumed more than its bio-capacity. Lifestyle and variation in the needs of households has exert demands on the natural resources and eventually on the global environment. This research therefore aimed at estimating the Ecological Footprints of the average individual in a household in the urban and rural areas of the Minna region in Nigeria. It identifies the types of resource consumption; the impact of consumption on the EF and compare the EF of both in relation to level of sustainability. Data were collected employing primary and secondary sources for the study. A total of 400 households was selected for the study. Questionnaire administration was employed to collect the data and random sampling was employed. The data were analysed through explanatory and inferential statistics. The result of the study shows that the EF of Minna and Maikunkele were 1.10 and 0.892 gha. Households require average 0.91 and 0.74 planets to sustain their living standard and generate 6.2 and 4.3 tonnes of CO2 annually. There are 9 and 6 factors that influence EF. It is recommended that the lifestyle of the household in Minna region has to be modified to reduce pressure environmental resources and emission of GHG for sustainable development
Effects of Housing Modifications on the Management of Pigs and Growth Performance
Pig industry in Nigeria is an important arm of the livestock sub-sector in the overall agricultural sector. The comfort of Pigs is determined by effective environmental temperature. It combines the effect of air temperature, flooring, and bedding. The aim of this study is to investigate the impact of different intensive housing systems on the feed consumption level, weight gain and welfare of pigs fed with the same feed (diet) under different housing systems for 8 weeks. Nine Pigs were purchased from a reputable commercial farm and were divided into 3 treatment groups, T1, T2 and T3. T1 is a well built pen with cemented wall and floor. T2 is a pen built with bamboo wall, and cemented floor. T3 is built with bamboo wall without cemented floor – bare loamy soil. The Pigs were raised for eight weeks. The feed given and weight gained for eight weeks were recorded and analysed using ANOVA. Considering the consumption levels of all treatments, T2 had the lowest feed intake compared to other treatments. T2 had the highest weight gain while T3had the lowest. It is hereby concluded that T3 presented the best result as regards feed consumption, cost of construction and ease of management. Although it presented the lowest weight gain which is attributable to the initial weight and tipping of the feed trough (feed wastage). However, feed wastage can be minimized by using firmer feed trough
Health status and blood parameters of weaner rabbits fed diets containing varying dietary fibre and digestible energy levels
The maintenance of a good health status in rabbits is hinged upon appropriate balance between dietary fibre and energy level. A 70-day feeding trial was conducted to study the health status and blood parameters of weaner rabbits fed diets containing varying fibre and digestible energy (DE) using a total of ninety 4-weeks-old rabbits. There were 9 dietary treatments laid out in a 3 × 3 factorial arrangement of 3 levels of dietary fibre [low (249-258 g/kg NDF and 149-157 g/kg ADF), optimum (349-381 g/kg NDF and 188-193 g/kg ADF) and high (430-456 g/kg NDF and 249-253 g/kg)] and digestible energy levels [low (8-8.5 MJ/kg), optimum (10.5-11 MJ/kg) and high (12-12.30 MJ/kg)]. Each of the diet was fed to 10 rabbits individually caged in a completely randomized design. Polynomial contrasts were done for linear and quadratic effects. Results indicated that rabbits fed low fibre diets showed high incidence of transitory diarrhoea, total morbidity and symptoms of other sickness. Interaction effect (fibre × digestible energy) indicated that irrespective of the digestible energy level of the diet, mortality, tendency to go off feed and incidence of transitory diarrhoea increased as dietary fibre level increased. Rabbits fed low fibre diets had the least packed cell volume (36.00%) and highest serum uric acid concentration (51.22 mg/dl). Rabbits fed diet containing high fibre + optimum DE recorded the highest packed cell volume (44.00%) and serum glutamate oxaloacetate transaminase (29.00 IU/L). Highest haemoglobin (16.00 g/dl), total serum protein (66.00 g/L) and serum cholesterol concentration (165.00 mg/dl) were recorded with rabbits fed diet containing optimum fibre + optimum DE. It was concluded that feeding low fibre diets increased the susceptibility of rabbits to transitory diarrhoea, morbidity and tendency to go off feed. High fibre diets in rabbit nutrition thus favoured improved health status. Keywords: Health status, Blood parameters, Weaner rabbits, Dietary fibre, Digestible energ
Effects of crude ethanolic extract of Garcinia cambogia on the reproductive system of male wist ar rats (Rattus novergicus)
15 male rats were grouped and administered crude ethanolic extracts of Garcinia cambogia seeds to
test the effects on the histology of the testis and sperm counts. Group A served as the control while Groups B and C received 100 and 200 mg/kg body weight of extracts, respectively. The administration was done orally once a day, six days a week for six weeks. The routine histological preparation at the end of administration revealed increase in the interstitial spaces, degeneration of the Ledgid cells and
distortion in the arrangement of the cells of spermatogenic series. The sperm counts revealed a
significant increase in the experimental groups when compared statistically with the control (p<0.05). It
was 81.5 ± 13.62 ´ 10^6/ml and 70 ± 12.98 ´ 10^6
/ml in groups Band C, respectively, as compared to 59.8 ± 2.14 ´ 10^6/ml in the Control group
Global age-sex-specific mortality, life expectancy, and population estimates in 204 countries and territories and 811 subnational locations, 1950–2021, and the impact of the COVID-19 pandemic: a comprehensive demographic analysis for the Global Burden of Disease Study 2021
Background: Estimates of demographic metrics are crucial to assess levels and trends of population health outcomes. The profound impact of the COVID-19 pandemic on populations worldwide has underscored the need for timely estimates to understand this unprecedented event within the context of long-term population health trends. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 provides new demographic estimates for 204 countries and territories and 811 additional subnational locations from 1950 to 2021, with a particular emphasis on changes in mortality and life expectancy that occurred during the 2020–21 COVID-19 pandemic period. Methods: 22 223 data sources from vital registration, sample registration, surveys, censuses, and other sources were used to estimate mortality, with a subset of these sources used exclusively to estimate excess mortality due to the COVID-19 pandemic. 2026 data sources were used for population estimation. Additional sources were used to estimate migration; the effects of the HIV epidemic; and demographic discontinuities due to conflicts, famines, natural disasters, and pandemics, which are used as inputs for estimating mortality and population. Spatiotemporal Gaussian process regression (ST-GPR) was used to generate under-5 mortality rates, which synthesised 30 763 location-years of vital registration and sample registration data, 1365 surveys and censuses, and 80 other sources. ST-GPR was also used to estimate adult mortality (between ages 15 and 59 years) based on information from 31 642 location-years of vital registration and sample registration data, 355 surveys and censuses, and 24 other sources. Estimates of child and adult mortality rates were then used to generate life tables with a relational model life table system. For countries with large HIV epidemics, life tables were adjusted using independent estimates of HIV-specific mortality generated via an epidemiological analysis of HIV prevalence surveys, antenatal clinic serosurveillance, and other data sources. Excess mortality due to the COVID-19 pandemic in 2020 and 2021 was determined by subtracting observed all-cause mortality (adjusted for late registration and mortality anomalies) from the mortality expected in the absence of the pandemic. Expected mortality was calculated based on historical trends using an ensemble of models. In location-years where all-cause mortality data were unavailable, we estimated excess mortality rates using a regression model with covariates pertaining to the pandemic. Population size was computed using a Bayesian hierarchical cohort component model. Life expectancy was calculated using age-specific mortality rates and standard demographic methods. Uncertainty intervals (UIs) were calculated for every metric using the 25th and 975th ordered values from a 1000-draw posterior distribution. Findings: Global all-cause mortality followed two distinct patterns over the study period: age-standardised mortality rates declined between 1950 and 2019 (a 62·8% [95% UI 60·5–65·1] decline), and increased during the COVID-19 pandemic period (2020–21; 5·1% [0·9–9·6] increase). In contrast with the overall reverse in mortality trends during the pandemic period, child mortality continued to decline, with 4·66 million (3·98–5·50) global deaths in children younger than 5 years in 2021 compared with 5·21 million (4·50–6·01) in 2019. An estimated 131 million (126–137) people died globally from all causes in 2020 and 2021 combined, of which 15·9 million (14·7–17·2) were due to the COVID-19 pandemic (measured by excess mortality, which includes deaths directly due to SARS-CoV-2 infection and those indirectly due to other social, economic, or behavioural changes associated with the pandemic). Excess mortality rates exceeded 150 deaths per 100 000 population during at least one year of the pandemic in 80 countries and territories, whereas 20 nations had a negative excess mortality rate in 2020 or 2021, indicating that all-cause mortality in these countries was lower during the pandemic than expected based on historical trends. Between 1950 and 2021, global life expectancy at birth increased by 22·7 years (20·8–24·8), from 49·0 years (46·7–51·3) to 71·7 years (70·9–72·5). Global life expectancy at birth declined by 1·6 years (1·0–2·2) between 2019 and 2021, reversing historical trends. An increase in life expectancy was only observed in 32 (15·7%) of 204 countries and territories between 2019 and 2021. The global population reached 7·89 billion (7·67–8·13) people in 2021, by which time 56 of 204 countries and territories had peaked and subsequently populations have declined. The largest proportion of population growth between 2020 and 2021 was in sub-Saharan Africa (39·5% [28·4–52·7]) and south Asia (26·3% [9·0–44·7]). From 2000 to 2021, the ratio of the population aged 65 years and older to the population aged younger than 15 years increased in 188 (92·2%) of 204 nations. Interpretation: Global adult mortality rates markedly increased during the COVID-19 pandemic in 2020 and 2021, reversing past decreasing trends, while child mortality rates continued to decline, albeit more slowly than in earlier years. Although COVID-19 had a substantial impact on many demographic indicators during the first 2 years of the pandemic, overall global health progress over the 72 years evaluated has been profound, with considerable improvements in mortality and life expectancy. Additionally, we observed a deceleration of global population growth since 2017, despite steady or increasing growth in lower-income countries, combined with a continued global shift of population age structures towards older ages. These demographic changes will likely present future challenges to health systems, economies, and societies. The comprehensive demographic estimates reported here will enable researchers, policy makers, health practitioners, and other key stakeholders to better understand and address the profound changes that have occurred in the global health landscape following the first 2 years of the COVID-19 pandemic, and longer-term trends beyond the pandemic
Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021
Background: Understanding the health consequences associated with exposure to risk factors is necessary to inform public health policy and practice. To systematically quantify the contributions of risk factor exposures to specific health outcomes, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) 2021 aims to provide comprehensive estimates of exposure levels, relative health risks, and attributable burden of disease for 88 risk factors in 204 countries and territories and 811 subnational locations, from 1990 to 2021. Methods: The GBD 2021 risk factor analysis used data from 54 561 total distinct sources to produce epidemiological estimates for 88 risk factors and their associated health outcomes for a total of 631 risk–outcome pairs. Pairs were included on the basis of data-driven determination of a risk–outcome association. Age-sex-location-year-specific estimates were generated at global, regional, and national levels. Our approach followed the comparative risk assessment framework predicated on a causal web of hierarchically organised, potentially combinative, modifiable risks. Relative risks (RRs) of a given outcome occurring as a function of risk factor exposure were estimated separately for each risk–outcome pair, and summary exposure values (SEVs), representing risk-weighted exposure prevalence, and theoretical minimum risk exposure levels (TMRELs) were estimated for each risk factor. These estimates were used to calculate the population attributable fraction (PAF; ie, the proportional change in health risk that would occur if exposure to a risk factor were reduced to the TMREL). The product of PAFs and disease burden associated with a given outcome, measured in disability-adjusted life-years (DALYs), yielded measures of attributable burden (ie, the proportion of total disease burden attributable to a particular risk factor or combination of risk factors). Adjustments for mediation were applied to account for relationships involving risk factors that act indirectly on outcomes via intermediate risks. Attributable burden estimates were stratified by Socio-demographic Index (SDI) quintile and presented as counts, age-standardised rates, and rankings. To complement estimates of RR and attributable burden, newly developed burden of proof risk function (BPRF) methods were applied to yield supplementary, conservative interpretations of risk–outcome associations based on the consistency of underlying evidence, accounting for unexplained heterogeneity between input data from different studies. Estimates reported represent the mean value across 500 draws from the estimate's distribution, with 95% uncertainty intervals (UIs) calculated as the 2·5th and 97·5th percentile values across the draws. Findings: Among the specific risk factors analysed for this study, particulate matter air pollution was the leading contributor to the global disease burden in 2021, contributing 8·0% (95% UI 6·7–9·4) of total DALYs, followed by high systolic blood pressure (SBP; 7·8% [6·4–9·2]), smoking (5·7% [4·7–6·8]), low birthweight and short gestation (5·6% [4·8–6·3]), and high fasting plasma glucose (FPG; 5·4% [4·8–6·0]). For younger demographics (ie, those aged 0–4 years and 5–14 years), risks such as low birthweight and short gestation and unsafe water, sanitation, and handwashing (WaSH) were among the leading risk factors, while for older age groups, metabolic risks such as high SBP, high body-mass index (BMI), high FPG, and high LDL cholesterol had a greater impact. From 2000 to 2021, there was an observable shift in global health challenges, marked by a decline in the number of all-age DALYs broadly attributable to behavioural risks (decrease of 20·7% [13·9–27·7]) and environmental and occupational risks (decrease of 22·0% [15·5–28·8]), coupled with a 49·4% (42·3–56·9) increase in DALYs attributable to metabolic risks, all reflecting ageing populations and changing lifestyles on a global scale. Age-standardised global DALY rates attributable to high BMI and high FPG rose considerably (15·7% [9·9–21·7] for high BMI and 7·9% [3·3–12·9] for high FPG) over this period, with exposure to these risks increasing annually at rates of 1·8% (1·6–1·9) for high BMI and 1·3% (1·1–1·5) for high FPG. By contrast, the global risk-attributable burden and exposure to many other risk factors declined, notably for risks such as child growth failure and unsafe water source, with age-standardised attributable DALYs decreasing by 71·5% (64·4–78·8) for child growth failure and 66·3% (60·2–72·0) for unsafe water source. We separated risk factors into three groups according to trajectory over time: those with a decreasing attributable burden, due largely to declining risk exposure (eg, diet high in trans-fat and household air pollution) but also to proportionally smaller child and youth populations (eg, child and maternal malnutrition); those for which the burden increased moderately in spite of declining risk exposure, due largely to population ageing (eg, smoking); and those for which the burden increased considerably due to both increasing risk exposure and population ageing (eg, ambient particulate matter air pollution, high BMI, high FPG, and high SBP). Interpretation: Substantial progress has been made in reducing the global disease burden attributable to a range of risk factors, particularly those related to maternal and child health, WaSH, and household air pollution. Maintaining efforts to minimise the impact of these risk factors, especially in low SDI locations, is necessary to sustain progress. Successes in moderating the smoking-related burden by reducing risk exposure highlight the need to advance policies that reduce exposure to other leading risk factors such as ambient particulate matter air pollution and high SBP. Troubling increases in high FPG, high BMI, and other risk factors related to obesity and metabolic syndrome indicate an urgent need to identify and implement interventions