Hydro tropes as promoters in soap flotation

Soaps, the salts of fatty acids are generally used as collectors in the flotation process to separate salt type minerals. Some times light diesel oil is mixed with soaps and the emulsion is used as collector. Addition of detergents to soaps not only enhances the collector efficiency but also reduces the consumption of soap. Urea a known hydro trope is found to improve the flotation efficiency of soaps. Our current testing is indicating that other hydro tropes such as tri sodium citrate and sodium salicylate are also effective in improving the flotation efficiency of soap and also the soap-LDO emulsion

Availability and Accessibility of Geographic Information Systems in Nigerian Federal Universities of Technology Libraries

This study was carried out to investigate the Availability and Accessibility of Geographic Information Systems in Nigerian Federal Universities of Technology Libraries. Three research questions were formulated. Survey research design was used for this study. The overall total number of 1422 respondent including students, faculty staff (GIS users) and librarians were drawn as population and as sample size of the study, from Federal University of Technology, Akure, Minna, Owerri and Abubakar Tafawa Belewa University, Bauchi. Two set of questionnaire were used to collect data for this study one for the GIS users and another for the Librarians. The data collected were presented and analyzed using frequency distribution table and percentages. The study found among others that there are computer hardware units for GIS operation, though some peripherals like plotters, scanner were less available among the selected Nigeria FUTs, ArcView was the type of GIS software that were available for GIS operations. This study concluded that GIS services will be better utilized if they are brought into the library which is the information hub of the university. Lastly, it was recommended that the university library should collaborate with organizations that deal with spatial information or GIS related departments in the university to facilitate GIS services integration into the array of library services

Acute effects of Hibiscus sabdariffa calyces on postprandial blood pressure, vascular function, blood lipids, biomarkers of insulin resistance and inflammation in humans

The acute impact of Hibiscus sabdariffa calyces (HSC) extract on postprandial vascular function and other cardiometabolic risk factors have not been studied previously. This study investigated the acute impact of HSC extract consumption on blood pressure (BP), vascular function and other cardiometabolic risk markers. Twenty-five men with 1% to 10% cardiovascular disease (CVD) risk (determined by QRISK 2) were randomised to consume either 250 mL of the aqueous extract of HSC or water with breakfast in a randomised, controlled, single-blinded, 2-meal cross-over study (ClinicalTrials.gov, NTC02165553) with a two weeks washout period between study days. BP was measured at baseline and hourly for 4 h. Flow mediated dilatation (FMD) of the branchial artery was measured at baseline, 2 and 4 h post intervention drink consumption. Acute consumption of aqueous extract of HSC caused a significant increase in % FMD ( < 0.001), a non-significant decrease in systolic BP (SBP) and diastolic BP (DBP); non-significant increase in urinary and plasma nitric oxide (NOx) and reduced response of serum glucose, plasma insulin, serum triacylglycerol and C-reactive protein (CRP) levels; significant ( = 0.026) improvement in the area under systemic antioxidant response curve (0 to 2 h); no significant changes in arterial stiffness following the acute consumption of the extract of HSC. Gallic acid, 4-O-methylgallic acid, 3-O-methylgallic acid and hippuric acid reached a maximum plasma concentration at 1 to 2 h post consumption of the extract of HSC. The extract of HSC improved postprandial vascular function and may be a useful dietary strategy to reduce endothelial dysfunction and CVD risk, although this requires confirmation

Formation of magnetic minerals at hydrocarbon-generation conditions

In this paper, we report the pyrolysis and formation of magnetic minerals in three source rock samples from the Wessex Basin in Dorset, southern England. The experimental conditions in the laboratory recreated the catagenesis environment of oil source rocks. Magnetic analysis of both the heated and the unheated samples at room temperature and at very low-temperatures (5 K), coupled with transmission electron-microscopy imaging and X-ray analysis, revealed the formation of nanometre-sized (&#60;10 nm), magnetic particles that varied across the rock samples analysed, but more importantly across the pyrolysis temperature range. Magnetic measurements demonstrated the formation of these magnetic minerals peaked at 250 °C for all rock samples and then decreased at 300 °C before rising again at 320 °C. The newly formed magnetic minerals are suggested to be primarily pyrrhotite, though magnetite and greigite are also thought to be present. The sizes of the magnetic minerals formed suggest a propensity to migrate together with oil potentially explaining the magnetic anomalies observed above and within oil fields

The Effect of Board Attributes on Real Earnings Management in Nigerian Financial Institutions

The purpose of this study is to examine the relationship between board attributes and real earnings management of listed Nigerian financial institutions. The residuals from Roychowdhury model (2006) is used to proxy real earnings management. Data were collected from 45 financial institutions quoted on the Nigerian Stock Exchange (NSE) from 2011 to 2016. For analysis purpose, the Panel Corrected Standard Errors (PCSEs) regression was utilized. The regression result shows that board meeting and board expertise have a significant positive impact on real earnings management. Whereas, female directors has a significant negative influence on real earnings management. The study recommends that the authorities concerned in Nigeria should concentrate on the recent technique of real earnings management (cash flow from operation, discretionary expenses and cost of goods sold) known to board members in developed economies in order to play a pivotal role in constraining corporate managers to act opportunistically in the ordinary course of business activities and preparing financial reports

Role of Public Libraries in the Creation of Social Capital: A Study of Northern Nigeria

ABSTRACT Public Libraries play a vital role in the creation and bridging Social Capital. They offer a space for education, socialization and debate, which are open to the members of the society. This paper presents an overview of public libraries in Nigeria and their role, the challenges associated with the activities and programs of Nigerian Public Libraries in the creation of Social Capital. A total of 59 Public Libraries working in 12 State of Library Boards of Northern Nigeria and Federal Capital Abuja has been considered for the pilot study. The analysis has been done by frequency distribution, percentage and cluster analysis. Based on the results of the study, a few suggestions and solutions to overcome the problems in the creation of Social Capital have been listed. This paper is a pilot study of the Doctoral programme by the first author

Sustaining tuberculosis decline in the UK

The re-emergence of tuberculosis in England began in the late 1980s increasing to a peak in 2011; since then incidence has fallen throughout the UK, in both the UK and non-UK born population, including in children.1 After 4 consecutive years of declining incidence of tuberculosis, sustained progress is finally being made with a 30% decline between 2011 and 2015.1 However, tuberculosis incidence in the UK remains higher than in most other high-income European countries and more than four times higher than in the USA

Prevalence and associated morbidities of preterm neonatal admissions at the University of Maiduguri Teaching Hospital, North-Eastern Nigeria

Introduction: Preterm delivery is of considerable concern to clinicians and researchers being a leading cause of infant morbidity and mortality in the industrialized countries and also contributes to substantial complications among survivors. Sub-Saharan Africa, including Nigeria accounts for significant proportion of preterm births, with over million deaths due to complication of prematurity. Objectives: The study aimed to determine the prevalence and associated morbidities of preterm deliveries at the University of Maiduguri Teaching Hospital, Maiduguri, North-Eastern Nigeria. Patients and methods: This is a retrospective review of neonates delivered before 37 completed weeks of gestation and admitted into the Special Care Baby Unit (SCBU) of the University of Maiduguri Teaching Hospital, from 1st January 2008 to 31st December 2015. Results: There were 3435 admissions into the Special Care baby Unit (SCBU) during the 8 year period. Out of these 1129 were preterm babies giving a prevalence of 32.9%. Of the 1129 preterm babies managed in SCBU, 714 case records were retrieved and analyzed giving a retrieval rate of 63%. There were 372 (52.1%) males and 342 (47.9%) females; with the male to female ratio of 1:1.08. There were 17(2.3%) extreme low birth weight&nbsp; (&lt;1000g), 288 (40.3%) very low birth weight (1000-1499 g), 406 (56.9%) low birth weight (1500- 2499 g) babies. The range of admission weights was 700-2500g with mean of 1600±900g. Conclusion: The burden, complications and mortality from preterm newborns remain significant public health challenges to care givers in Nigeria. Key words : Prevalence, preterm babies, associated morbidities, Maiduguri&nbsp

Drug misuse, tobacco smoking, alcohol and other social determinants of tuberculosis in UK-born adults in England: a community-based case-control study

Addressing social determinants of tuberculosis (TB) is essential to achieve elimination, including in low-incidence settings. We measured the association between socio-economic status and intermediate social determinants of health (SDHs, including drug misuse, tobacco smoking and alcohol), and TB, taking into account their clustering in individuals. We conducted a case-control study in 23–38 years old UK-born White adults with frst tuberculosis episode, and randomly selected age and sex frequencymatched community controls. Data was collected on education, household overcrowding, tobacco smoking, alcohol and drugs use, and history of homelessness and prison. Analyses were done using logistic regression models, informed by a formal theoretical causal framework (Directed Acyclic Graph). 681 TB cases and 1183 controls were recruited. Tuberculosis odds were four times higher in subjects with education below GCSE O-levels, compared to higher education (OR=3.94; 95%CI: 2.74, 5.67), after adjusting for other TB risk factors (age, sex, BCG-vaccination and stays ≥3 months in Africa/Asia). When simultaneously accounting for respective SDHs, higher tuberculosis risk was independently associated with tobacco smoking, drugs use (especially injectable drugs OR=5.67; 95%CI: 2.68, 11.98), homelessness and area-level deprivation. Population Attributable Fraction estimates suggested that tobacco and class-A drug use were, respectively, responsible for 18% and 15% of TB cases in this group. Our fndings suggest that socio-economic deprivation remains a driver of tuberculosis in England, including through drugs misuse, tobacco smoking, and homelessness. These fndings further support the integration of health and social services in high-risk young adults to improve TB control eforts

Employee Perception of Maintenance Practices at Selected Public Healthcare Facilities in Niger State, Nigeria

Maintenance practice involves deliberate and orderly way that deals with planning, evaluation, organizing, and monitoring of maintenance activities and their expenses. An excellent maintenance management framework combines with learned and proficient maintenance staff can avoid safety and health issues and environmental harm; yielding longer assets life with less breakdowns, lower working costs and higher personal satisfaction for the users and occupants. Experienced and highly trained workers are inspired with a very friendly atmosphere and they are also in turn individual friendly.Lack of maintenance of our healthcare facilities is evident in the deplorable condition of the structures and equipment.This study assessed maintenance practices of maintenance staff at six (6) selected healthcare facilities in Niger State through a structured questionnaire. Data collected was analysed with Minitab 17 statistical software using descriptive statistics. The analysis revealed among others that majority of maintenance practice were preventive in nature, and that the maintenanceproblems in the healthcare facilities of Niger State was caused bylack of lack of funding and lack of successful adaptation of ineffective maintenance programmes and practices. The study recommended a proactive and aggressive approach to reduce the occurrence of defects in and around the healthcare facilities. It was also recommended that individual healthcare centres should solicit for both private and public funding for maintenance activities since they have partial autonomy to generate revenue internally for their operation