14 research outputs found
Geochemical investigations of a Portion Obu Hill Marble Deposit Okpella, Edo-State, Nigeria
The Obhu marble deposit is located at latitude 7o 21áżœ 31.2áżœáżœ to 7o 21áżœ 34.9áżœáżœ and longitude 6o 25áżœ 11.6áżœáżœ to 6o 25áżœ 18.0áżœáżœ. The geochemical investigations of a portion of the Obhu hill marble deposit was aimed at investigating the reserve estimate in tonnage, rock mass/overburden volume and the geochemical composition of the deposit. This study was conducted by using vertical electrical sounding (VES) geophysical method to obtain the geo-electric parameters of the deposit, and to determine the reserve estimate of the Marble deposit of study area. The result shows that the reserve tonnage is 4.6 x 106 Tons and rock mass reserve/overburden volume ratio is 9:1.The chemical analysis were compared with the RMRDC of Nigeria for each element suitable for production of cement, fertilizer, iron, steel and other industrial uses. The MgO values of the samples 1 and 2 does not falls within the acceptable value of 6 % of RMRDC, with the exception of sample 3 which falls within the acceptable limit. CaO, Al2O3 and P2O5 values of the samples falls within the acceptable limits of RMRDC and so suggest that the marble can be put to industrial use, while the Fe2O3 content of sample 2 and 3 makes them probably not best suited for industrial use, except for sample 1 having a lower value of 1.85 %. The silica SiO2 content values for the three samples exceeded the recommended standard of RMRDC of 5 %. This result reveals that the marble deposit is suitable for most industrial use
Primary umbilical endometriosis: Radical excision (omphalectomy) and laparoscopic management of associated pelvic endometriosis in a low resource tertiary hospital
Primary umbilical endometriosis (PUE) is a rare condition affecting 0.5 â 1% of all extragenital endometriosis cases. We reviewed the data of five women with umbilical endometriosis retrospectively. The age range was 29 â 46 years, and they were all nulligravid at presentation. Common clinical presentation was umbilical pain and masses, dysmenorrhea, and primary infertility. Radical umbilical excision was performed to remove the nodule as a definitive treatment. Diagnostic laparoscopy was performed, followed by varying degrees of operative laparoscopic procedures. They all had endometriosis in the pelvis. Three out of five women operated became pregnant and had live births. Complete resolution of clinical symptoms with a reduction in umbilical and menstrual pain scores occurred. In resource-constrained settings, diagnosis, and treatment of PUE may be challenging. Clinical suspicion and appropriate case management are critical for good reproductive outcomes and quality of life.
L'endomĂ©triose ombilicale primaire (PUE) est une maladie rare affectant 0,5 Ă 1 % de tous les cas d'endomĂ©triose extragĂ©nitale. Nous avons examinĂ© les donnĂ©es de cinq femmes atteintes d'endomĂ©triose ombilicale rĂ©trospectivement. La tranche d'Ăąge Ă©tait de 29 Ă 46 ans, et ils Ă©taient tous nulligravides Ă la prĂ©sentation. Le tableau clinique commun Ă©tait la douleur et les masses ombilicales, la dysmĂ©norrhĂ©e et l'infertilitĂ© primaire. Une excision ombilicale radicale a Ă©tĂ© rĂ©alisĂ©e pour retirer le nodule comme traitement dĂ©finitif. La laparoscopie diagnostique a Ă©tĂ© rĂ©alisĂ©e, suivie de divers degrĂ©s de procĂ©dures laparoscopiques opĂ©ratoires. Ils avaient tous une endomĂ©triose du bassin. Trois femmes opĂ©rĂ©es sur cinq sont tombĂ©es enceintes et ont eu des naissances vivantes. Une rĂ©solution complĂšte des symptĂŽmes cliniques avec une rĂ©duction des scores de douleur ombilicale et menstruelle s'est produite. Dans les milieux Ă ressources limitĂ©es, le diagnostic et le traitement du PUE peuvent ĂȘtre difficiles. La suspicion clinique et une prise en charge appropriĂ©e des cas sont essentielles pour de bons rĂ©sultats en matiĂšre de reproduction et une bonne qualitĂ© de vie
Effect of Larvae Treated with Mixed Biopesticide Bacillus thuringiensis - Abamectin on Sex Pheromone Communication System in Cotton Bollworm, Helicoverpa armigera
Third instar larvae of the cotton bollworm (Helicoverpa armigera) were reared with artificial diet containing a Bacillus thuringiensis - abamectin (BtA) biopesticide mixture that resulted in 20% mortality (LD(20)). The adult male survivors from larvae treated with BtA exhibited a higher percentage of âorientationâ than control males but lower percentages of âapproachingâ and âlandingâ in wind tunnel bioassays. Adult female survivors from larvae treated with BtA produced higher sex pheromone titers and displayed a lower calling percentage than control females. The ratio of Z-11-hexadecenal (Z11â16:Ald) and Z-9-hexadecenal (Z9â16:Ald) in BtA-treated females changed and coefficients of variation (CV) of Z11â16:Ald and Z9â16:Ald were expanded compared to control females. The peak circadian calling time of BtA-treated females occurred later than that of control females. In mating choice experiment, both control males and BtA-treated males preferred to mate with control females and a portion of the Bt-A treated males did not mate whereas all control males did. Our Data support that treatment of larvae with BtA had an effect on the sex pheromone communication system in surviving H.armigera moths that may contribute to assortative mating
<i>Brevicoryne brassicae</i> L. ir <i>Diaeretiella rapae</i> (M'Intosh) paplitimas skirtingai auginamuose kopƫstuose
Marked variability in institutional deliveries and neonatal outcomes during the COVID-19 lockdown in Nigeria
Background
The coronavirus disease 2019 (COVID-19) pandemic and the interventions to mitigate its spread impacted access to healthcare, including hospital births and newborn care. This study evaluated the impact of COVID-19 lockdown measures on newborn service utilization in Nigeria.
Methods
The records of women who delivered in hospitals and babies admitted to neonatal wards were retrospectively reviewed before (March 2019âFebruary 2020) and during (March 2020âFebruary 2021) the COVID-19 pandemic lockdown in selected facilities in Nigeria.
Results
There was a nationwide reduction in institutional deliveries during the COVID-19 lockdown period in Nigeria, with 14â444 before and 11â723 during the lockdownâa decrease of 18.8%. The number of preterm admissions decreased during the lockdown period (30.6% during lockdown vs 32.6% pre-lockdown), but the percentage of outborn preterm admissions remained unchanged. Newborn admissions varied between zones with no consistent pattern. Although neonatal jaundice and prematurity remained the most common reasons for admission, severe perinatal asphyxia increased by nearly 50%. Neonatal mortality was significantly higher during the COVID-19 lockdown compared with pre-lockdown (110.6/1000 [11.1%] vs 91.4/1000 [9.1%], respectively; p=0.01). The odds of a newborn dying were about four times higher if delivered outside the facility during the lockdown (p<0.001).
Conclusions
The COVID-19 lockdown had markedly deleterious effects on healthcare seeking for deliveries and neonatal care that varied between zones with no consistent pattern
Lethal and sublethal effects of three insecticides on the aphid parasitoid, Lysiphlebus fabarum Marshall (Hymenoptera: Aphidiidae)
Psychometric Properties of the Pedagogical Evaluation Scale of Synchronous Technologies in Distance Education
Analysing Financing Challenges to Medium and Small Scale Industries in Nigeria: An Empirical Investigation
Corporate social responsibility in the oil and gas industry in Nigeria: the case for a legalised framework
This chapter focuses on the extant corporate social responsibility (CSR) practices in the oil and gas industry in Nigeria. The oil and gas industry has been beset by a lot of problems not limited to violence, kidnappings, eco-terrorism, and maladministration amongst others. One of the strategies of curing or mitigating these inherent problems in the oil and gas sector is the use of CSR initiatives by many oil multinational corporations (MNCs) operating in Nigeria. Notwithstanding that the majority of CSR initiatives in the oil and gas sector in Nigeria are voluntary, this chapter avers that CSR initiatives should be made mandatory by the Nigerian government. Furthermore, Civil Society Organisations (CSOs) should play an integral role in the implementation of any legalised framework on CSR that will be developed in the country. This chapter suggests that a CSR law should be developed specifically for the oil and gas industry to mitigate the negative externalities arising from the activities of oil MNCs in the Niger Delta region of the countryN/