310 research outputs found
The File Searching, Record Validating and Record Formatting Functions of the Supervisor for an Extended Data Management Facility
The purpose of the Supervisor in an Extended Data Management Facility (EDMF) is to direct the Facility\u27s handling of a user\u27s request for service. The Supervisor employs the five main functions of Access Controlling, Retrieval Optimizing, File Searching, Record Validating and Record Formatting in order to accomplish its task. This report is concerned mainly with the design and implementation of the File Searching and Record Validating Functions, although it also covers the Record Formatting Function. The File Searching and Record Validating Functions form that part of the Supervisor which actually controls the retrieval of records from the files of the EDMF. The major part of the report is concerned with discussing the File Searching Function because of the novel feature which has been implemented. This feature is the parallel processing of record lists in a generalized file structure, which eliminates redundant retrievals while at the same time reducing the access time of the device on which the records are stored. The Record Validating Function checks the record for compliance with the user\u27s request and verifies the user\u27s authority to access the record. A validated record is then subject to the Record Formatting Function which outputs it to the user
Cross-Border Transmission of Interest Rate Shocks: A VAR Analysis of the Nigerian Economy
This paper examined if interest rate shocks from the U.S are transmitted to Nigeria. For this purpose, we collected data on four Nigerian variables (real GDP, CPI, exchange rate and interest rate) and two foreign variables (U.S FFR and the world CPI) for the period 1983-2011. The impulse response analysis of our VAR model shows that Nigerian variables respond insignificantly to shocks from foreign variables. We therefore concluded that shocks in Nigeria are basically home-made. We recommended that monetary authorities in Nigeria should base their policy making on domestic shocks, as considering external factors might mislead them. Keywords: Interest rate shock, International transmission, Nigeria, U.S.A., VAR
Separation of oil palm kernel and shell mixture using soil and palm ash slurries
This study investigated the possibility of separating oil palm kernel and shell mixture using media other than clay in wet separation. The separation efficiency of each medium ["Ikwube" (anthill), palm ash and sandy loam soil] was compared with that of clay. The effect of media type, specific gravity of the slurry, pH and slurry viscosity on the efficiency of separation were studied. The media/water ratio of 0.20:1, 0.30:1, 0.40:1, and 0.50:1 by weight were prepared in four aluminum pots for each medium at a time and each used to separate 20kg of cracked nut (palm kernel and shell mixture). The specific gravity and viscosity increases with increase in media/water ratio while the pH decreases. Higher slurry viscosity resulted in a better separation but there is decrease in the efficiency when viscosity is above 3.5 and 5.5 cP for clay and "Ikwube" respectively. The suitable media slurries were found to have specific gravities between 1.04 and 1.12. The optimum condition in which separation efficiency was found in the media/water ratio of 0.30:1. Among the media used, "Ikwube" was found to be comparable to clay at a medium-to-water ratio of 0.30:1 giving 98.93% efficiency. Thus, it is recommended that "Ikwube" can be used in place of clay for wet separation.Key words: Oil Palm Kernel, Kernel Shell, Separation, Clay Soil, “Ikwube” (anthill)
A Survey of Studies on Money Demand and Inflation Amidst Banking Crisis
The paper is borne out of the necessity to create a repository of information on monetary effects of banking crisis with a focus on money demand and inflation. To this end, the paper selectively reviews some empirical studies on money demand and inflation in the face of banking crisis. Overwhelming evidence reveals that money demand does not only increase during banking crisis but is also largely stable. The studies also suggest that long-run cointegrating relationship exists between money demand and its determining variables during banking crisis. However, evidence indicates that banking crisis makes inflation to decline or increase. These pattern of results were evident in developed and developing countries and from different methodologies applied. One policy implication from the survey is that during banking crisis monetary policy would be ineffective. The policy recommendation that can make monetary policy effective is to expand money supply and reduce interest rate for the productive sectors, particularly agricultural and manufacturing sectors
Economic Globalization: Its Impact on the Growth of Non-Oil Supply in Nigeria
The study examined the impact of economic globalization on the growth of non oil supply in Nigeria. Specifically, it sought to find out how economic globalization has impacted on changing the structure of domestic production in favour of non oil supply in Nigeria in the period 1970-2011. The study employed ordinary least square (OLS) and Vector Error Correction Model (VEC) in a bid to delineate the long run relationship between growth of non-oil supply (NOX), economic globalization (proxied by index of openness) (OPN), relative prices (RP), gross domestic product (GDP), capital goods import (CG), world income (WI), exchange rate (EXR) and oil export (OX). The results show that a 1% increase in economic globalization will grow non-oil supply by 36% but t-statistics of 1.115 is indicative of an insignificant impact both in the long run and short run. Equally, a 1% increase each in GDP, RP, CG, and EXR will grow NOX by 108%, 012%, 004% and 08% respectively, while a 1% increase in WI and OX will depress the NOX by 149% and 02% respectively. The depressing effect of WI on NOX is indicative that WI elasticity for Nigerian NOX is negative, that is, as WI grows tastes and preferences change in favour of non Nigerian NOX. The weak impact of CG in explaining the contemporaneous changes in the growth of NOX implies that the latter may increase in the short run without necessarily increasing the importation of the former – a good case for dependency driven Nigerian economy. Though diversification and increased openness are recommended, improving on the quality, packaging and marketing of Nigeria’s NOX is imperative in order to reverse the WI growth-Nigerian NOX demand relation and so gain from greater integration and trade. Keywords: Globalization, Non-oil supply, oil export, openness, GDP
Maximizing alcohol yields from wheat and maize and their co-products for distilling or bioethanol production
The key to optimizing alcohol production from cereals is a full understanding of the physiology and processing characteristics of different cereals. This study examined the maximum alcohol yields that can be obtained from wheat and maize using different processing technologies. Lower processing temperatures (85°C) resulted in high alcohol yields from wheat (a temperate crop), whereas higher processing temperatures (142°C) gave maximum alcohol yields from maize (a tropical crop). Similar trends were also observed when the spent grains from these cereals were processed using commercial enzymes. Mill settings were additional factors in influencing alcohol production. Wheat has the potential to produce higher alcohol yields when compared with maize, when residual biomass (i.e. spent grains) saccharification using selected commercial enzymes is taken into account. While this approach is not applicable for the Scotch whisky industry owing to strict legislation forbidding the use of exogenous enzymes, this is pertinent for bioethanol production to increase the alcohol yield obtained from both starch and lignocellulosic components of whole cereal grains. Wheat and maize processing temperatures and the use of processing aids are of potential economic benefit to bioethanol producers and to beverage alcohol producers seeking to understand the factors influencing the processing properties of different cereals
Application of Numerical Newton-Raphson Method in Calculation of Emitter Water Discharge of Drip Irrigation System in “Mutis Cemerlang” Coffee Plantation
Based on the slope class, the shape of the area and the elevation of dry land in Nusa Tenggara, agricultural land in Noepesu Village is suitable for planting coffee plants with an agroforestry scheme. To overcome the problem of limited water, drip irrigation system technology can be applied. The use of drip irrigation as an agricultural technology in Noepesu village has been carried out by many farmer groups. Still, the installation process does not consider the pipe specifications (pipe length and pipe diameter) and the condition of agricultural land. This causes the service life of drip irrigation to be not long. If this continues, of course, it will increase system installation costs. To optimize service life, a hydraulics analysis method is needed for drip irrigation pipe network systems that take into account pipe specifications and agricultural land conditions.The hydraulics analysis of the drip irrigation network system determines the emitter’s water flow rate. The emitter flow rate forms a nonlinear equation known as the closed pipe equation. In the process of solving these equations, numerical methods can be used, specifically the Newton-Raphson method. This study focuses on applying the Newton-Raphson method to calculate the amount of water discharge from each emitter of the drip irrigation network system on the farmland of the Mutis Cemerlang Farmer Group in Noepesu Village. The drip irrigation system is designed with 250 nodes, 275 pipes, 26 loops, and 86 outlets divided into two sides, with the left side containing 84 outlets with one emitter and the right side containing 102 outlets with two emitters. The amount of water discharge for each emitter is 0,0008 ml/second≤Q≤2,6 ml/second for the left side and 0,001 ml/second≤Q≤1,1 ml/second for the right side, as determined by simulation calculations utilizing the Newton-Raphson method and Matlab software. The simulation results show that the amount of water discharge at each emitter is ideal in the first iteration because it has a discharge correction value (∆Q)≈0
Presence Of Keratinophilic Fungi In Schools Playing Grounds In Sagamu
Abstract: A total of 80 soil samples was examined from 10 school playinggrounds in Sagamu city for the isolation and identification of keratinophilicfungi using hair baiting technique. Results from this study revealed sixspecies of of organisms belonging to three different genera viz; Aspergillus, Penicillium and Trichophyton. The prevalence rate of these organisms were Aspergillus niger 45 (15.56%), Aspergillus flavus 45(35.56%), Aspergillusfumigatus 45(15.56%), Pencillium species 45(15.56%),Trichophtyonrubum 45(11.11%) and Trichophyton mentagrophytes 45(6.65%). This studytherefore confirmed the biodynamism of the isolated organisms in theschools playing ground studied
Effect of Sodium Lauryl Sulfate (SLS) on the External Adnexia of the Rabbit Eye
SLS is an anionic surfactant used in the production of personal hygiene products such as tooth pastes, soaps, shampoos, shaving foam and other consumable related products. This study evaluated the effect of SLS on the tissues of the external adnexia of rabbit eye Varying doses of SLS (5mg/ml and 10mg/ml) was instilled on the eyes of New Zealand rabbits and the ocular status was observed for five days using a 20X magnification lens. It was observed that SLS was toxic to the external adnexia of the eye and caused some morphological changes. There was swelling of the eyelid, hyperemia in conjunctiva, tearing, discharge, photophobia and edema which were visible from up to day five with optimal changes on day three. The effect was dose dependent and more significant in animals instilled with 10mg/ml of SLS solution. The results suggest that SLS was toxic to the rabbit eye and increased dose could increase toxic effect on the eye. This study has exposed the effect of SLS to the eye and recommends minimal concentration in cosmetics and household hygienic detergents that can get direct contact with the eye
Examination of the effects of a new compression garment on skin tissue oxygenation in healthy volunteers
Objective:
Compression devices have been shown to reduce venous stasis, increase blood flow and skin tissue oxygenation (StO2), promoting healthy tissue. This study aimed to explore the efficacy of a new compression garment in three different positions in healthy adults.
Methods:
In this quantitative study, potential participants were screened and recruited using the Physical Activity Readiness Questionnaire (PAR-Q, Canada). Participants attended three separate, one-hour sessions to evaluate StO2 in supine-lying, chair-sitting and long-sitting positions. StO2 was recorded for 20 minutes pre-, during and post- a 20-minute intervention using a compression garment, TributeWrap (Lohmann-Rauscher, Germany). A repeated-measures analysis of variance (ANOVA) was followed by post-hoc pairwise comparisons.
Results:
A total of 28 healthy volunteers took part (aged 24.6 ±8.4years; 13 males, 15 females). A significant difference was seen between the three positions (p<0.001). Chair-sitting had the lowest StO2 pre-intervention, increasing StO2 significantly (32.25%, p<0.001) during wear of the compression garment (24.8% higher than baseline post-intervention). No significant difference was seen between long sitting and supine-lying (p=1.000). In contrast, long-sitting and supine-lying StO2 was higher pre-intervention compared with chair-sitting and only increased post-intervention (11% and 16.8% respectively, p<0.001) compared with baseline.
Conclusion:
The compression garment significantly increased StO2 levels in both seating positions. Further studies are required to determine if increasing StO2 through short intervention sessions with this device has the potential to improve self-management of tissue health in individuals with reduced mobility, oedema or venous insufficiency
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