Development And Validation Of The Brain Fag Propensity Scale

Brain Fag Syndrome (BFS) is a psychiatric disorder associated with study among African students. Among secondary school students, it affects two to four out of every ten students. One of the consequences of this illness is early foreclosure of education in affected students. However, clinical experience suggests that many students have sub-threshold symptoms of brain fag and are at risk for developing brain fag syndrome. This study aimed to develop a valid and reliable psychometric instrument that measures brain fag syndrome propensity

ENERGY USE EFFICIENCY OF MELON (COLOCYNTHIS CITRULLUS) PRODUCTION UNDER DIFFERENT TILLAGE METHODS

Since mechanization is inevitable and isassociated with increase in productivity, there is need to find the most appropriate tillage method in crop production that minimizes energy consumption, enhance profitability and reduce environmental damage from fossil fuel related emission. This research investigates the energy use efficiency in melon production in three tillage methods (reduced, minimum and maximum). Human power, machinery, diesel fuel, fertilizers, seed and pesticides energy inputs were used during the cultivation of melon. Input and output energy analysis method was used to quantify the input and output energy in each of the tillage methods during the production of melon. The energy indices of melon production determined are; energy efficiency, energy productivity, specific energy, net energy and energy efficiency index. The total energy required per hectare in reduced, minimum and maximum tillage were 4528.29, 7191.07 and 8325.64 MJ/ha while the output energy were found to be 8112, 10404 and 10752 MJ/ha, respectively. The energy efficiency were estimated to be 1.79, 1.45 and 1.29 while net energy were found to be 3583.71, 3212.93 and 2426.36 MJ/ha for reduced, minimum and maximum tillage methods, respectively. The result revealed that maximum tillage is better than both reduced and minimum tillage in terms of energy efficiency and net energy gain. Keywords: Energy, Melon, Tillage, Energy Efficiency, Net Energy DOI: 10.7176/JETP/11-4-03 Publication date: August  31st 202

Influence of fatigue on adolescents sleep habits in Nigeria

IntroductionAdolescents in Nigeria tend to report feelings of mental, physical and general fatigue without having correspondingly exerted themselves to trigger this. This tiredness has been observed to also affect their sleep habits.AimWe set out to investigate how the report of tiredness by in-school adolescents tends to affect their sleep habits both on weekdays and weekends.MethodsThe Tripartite Fatigue Scale (TFS) and a modified version of the School Sleep Habits Survey (SSHS) were administered on 606 (272 males and 334 females) secondary school adolescents in Lagos and Ogun states of Nigeria aged between 12–19 years (χ2 = 15.24; SD = 1.42) in their classrooms.ResultsA multivariate analysis of variance (MANOVA) was used to analyse the effect of fatigue on the sleep habits of adolescents. The result shows that fatigue significantly affects the sleep habits of adolescents during weekends and weekdays, F (3, 602) = 20.068, P ≤ 0.01; Pillai's Trace = 0.91, partial η2 = 0.91. The adolescents also reported general inadequate sleep (χ2 = 6.29 SD = 2.32), less than the required amount of adequate sleep their age. Additional Analysis of Variance (ANOVA) result showed that fatigue significantly affected the students self-reported grade F (3, 605) = 5.32, P = 0.01.ConclusionsThe present study has empirically highlighted that the consistent complaint of tiredness by secondary school adolescents in Nigeria emanates from fatigue marked mostly by insufficient sleep.Disclosure of interestThe authors have not supplied their declaration of competing interest.</jats:sec

Soil nutrients and beta diversity in the Bornean Dipterocarpaceae: evidence for niche partitioning by tropical rain forest trees

1   The relative importance of niche- and dispersal-mediated processes in structuring diverse tropical plant communities remains poorly understood. Here, we link mesoscale beta diversity to soil variation throughout a lowland Bornean watershed underlain by alluvium, sedimentary and granite parent materials ( c . 340 ha, 8–200 m a.s.l.). We test the hypothesis that species turnover across the habitat gradient reflects interspecific partitioning of soil resources. 2   Floristic inventories (≥ 1 cm d.b.h.) of the Dipterocarpaceae, the dominant Bornean canopy tree family, were combined with extensive soil analyses in 30 (0.16 ha) plots. Six samples per plot were analysed for total C, N, P, K, Ca and Mg, exchangeable K, Ca and Mg, extractable P, texture, and pH. 3   Extractable P, exchangeable K, and total C, N and P varied significantly among substrates and were highest on alluvium. Thirty-one dipterocarp species ( n  = 2634 individuals, five genera) were recorded. Dipterocarp density was similar across substrates, but richness and diversity were highest on nutrient-poor granite and lowest on nutrient-rich alluvium. 4   Eighteen of 22 species were positively or negatively associated with parent material. In 8 of 16 abundant species, tree distribution (≥ 10 cm d.b.h.) was more strongly non-random than juveniles (1–10 cm d.b.h.), suggesting higher juvenile mortality in unsuitable habitats. The dominant species Dipterocarpus sublamellatus (> 50% of stems) was indifferent to substrate, but nine of 11 ‘subdominant’ species (> 8 individuals ha −1 ) were substrate specialists. 5   Eighteen of 22 species were significantly associated with soil nutrients, especially P, Mg and Ca. Floristic variation was significantly correlated with edaphic and geographical distance for all stems ≥ 1 cm d.b.h. in Mantel analyses. However, juvenile variation (1–10 cm d.b.h.) was more strongly related to geographical distance than edaphic factors, while the converse held for established trees (≥ 10 cm d.b.h.), suggesting increased importance of niche processes with size class. 6   Pervasive dipterocarp associations with soil factors suggest that niche partitioning structures dipterocarp tree communities. Yet, much floristic variation unrelated to soil was correlated with geographical distance between plots, suggesting that dispersal and niche processes jointly determine mesoscale beta diversity in the Bornean Dipterocarpaceae. Journal of Ecology (2005) doi: 10.1111/j.1365-2745.2005.01077.xPeer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72822/1/j.1365-2745.2005.01077.x.pd

Cross-national variations in reported discrimination among people treated for major depression worldwide: The ASPEN/INDIGO international study

Background: No study has so far explored differences in discrimination reported by people with major depressive disorder (MDD) across countries and cultures. Aims: To (a) compare reported discrimination across different countries, and (b) explore the relative weight of individual and contextual factors in explaining levels of reported discrimination in people with MDD. Method: Cross-sectional multisite international survey (34 countries worldwide) of 1082 people with MDD. Experienced and anticipated discrimination were assessed by the Discrimination and Stigma Scale (DISC). Countries were classified according to their rating on the Human Development Index (HDI). Multilevel negative binomial and Poisson models were used. Results: People living in 'very high HDI' countries reported higher discrimination than those in 'medium/low HDI' countries. Variation in reported discrimination across countries was only partially explained by individual-level variables. The contribution of country-level variables was significant for anticipated discrimination only. Conclusions: Contextual factors play an important role in anticipated discrimination. Country-specific interventions should be implemented to prevent discrimination towards people with MDD

Unmet need for treatment of substance use disorders in nigeria

Evidences indicate a high unmet need for the treatment of individuals with substance use disorders in Nigeria. This review highlighted factors that accounted for such unmet needs such as inadequate or lack of data that will drive effective intervention,  dearth in the number of experts in the addiction field , inadequate infrastructure , lack of pharmacological  agents needed for treatment, poor understanding of cultural factors were highlighted. In this paper, we discuss these issues, including a number of recommendations.Keywords : Unmet Need ; Substance Use Disorders; Treatment; Nigeri