Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Assessment of Heavy Metals in The Muscle of Domestic Birds

Abstract— The main objective of the present study was to provide the information on the concentration and distribution of manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), cadmium (Cd) and lead (Pb), in the muscle of different species of domesticated birds  (guinea fowl, Local fowl, Cockerel) considering both male and female species using  Atomic absorption spectrophotometry. Initially, the samples were digested with concentrated nitric acid, Hydrogen peroxide and Perchloric acid in a T...

Analyzing Expected Returns of a Stock Using the Markov Chain Model and the CAPM

The chances of success of an investor in the stock market depends heavily on the decisions he takes based on his knowledge of the behavior of the stock market. In this study, the behavior of a stock on the Nigerian stock exchange market was studied. The Markov Chain with a threshold to determine movement between states, was used to estimate expected long and short-run returns, and the result was compared to the expected return of the Capital Asset Pricing Model. It was observed that the m...

TECHNICAL REPORT ON STUDENT INDUSTRIAL WORK EXPERIENCE SCHEME (S.I.W.E.S) AT ECONOMIC AND BUSINESS POLICY DEPARTMENT NIGERIAN INSTITUTE OF SOCIAL AND ECONOMIC RESEARCH(NISER)

I observed my Student Industrial Work Experience Scheme at Nigerian Institute of Social and Economic Research (NISER), Ibadan, Oyo State, Nigeria. During my SIWES, I was able to learn how to make use of some complex statistical (computational) packages in coding and analyses of data, either primary data or secondary data. And I also learned how to interpret analyzed data for end users. Furthermore, I saw the practical applications of Mathematics to solve problems in organizations, companie...

Hepatitis B Surface Antigen among pregnant women

Abstract Introduction Material and Methods Result Discussion Reference

SOCIAL, LEGAL, ETHICAL, HEALTH, SAFETY AND ENVIRONMENTAL IMPACT OF NANOTECHNOLOGY

ABSTRACT This  term  paper contributions nanotechnology and dives  into  the  world  of  nanotechnology  and  its and  possibilities  it  can  offer  to  the  society The and  nanomaterials immense impact  of extends  from  its  medical,  ethical,  mental,  legal environmental  applications,  to  fields  such  as  engineering,  biology,  chemistry, computing,  materials  science,  and  communications. Alas,  nothing  is  ever  as  it seems  and  perf...

In Vitro Antioxidant Activity and Nitric Oxide Scavenging Activity on Citrullus Lanatus Seeds

Citrullus lanatus (water melon) is a commonly consumed fruit worldwide. The seeds are often thrown away without considering its potential nutritional and medicinal benefits. In this study, a methanol extract of citrullus lanatus seeds was analyzed for the presence of bioactive secondary metabolites and to determine its ability to scavenge 2, 2‐ diphenyl ‐1‐ picrylhydrazyl (DPPH.) radical, superoxide anion radical (O2.‐), and nitric oxide radical (NO.). Quantitative phytochemical a...

RELEASE KINETICS OF CYMBOPOGON CITRATUS ESSENTIAL OIL FROM STARCH BEADS

ABSTRACT The essential oil of Cymbopogon citratus was extracted using a green method (i.e. essential oil still), encapsulated into cassava starch matrix using sodium alginate as a binder. The encapsulated sodium alginate starch beads were characterized using Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectrophotometer (FTIR), release kinetics of the oil was monitored by UV-Visible Spectrophotometry from two (2) aqueous media, buffer of pH 4 and pH 9. The result for ...

A review on selection of fermentative microorganisms for functional foods and beverages: the production and future perspectives

Fermentation has been employed as a traditional means of improving the shelf life and nutritional contents of foods, thus making fermented foods and beverages functional and therapeutic. Lactic acid bacteria (LAB) plays a major role in determining the health benefits of fermented milk and related products. This review takes into cognizance numerous investigations reporting certain microbial strains and mixes to contribute safety, quality, stability, health and organoleptic properties to ferme...

A Review on a Simplified Alternative Algorithm to the Simplex Method for Solving Linear Programming Problems

ABSTRACT This paper discusses the review of a new solution algorithms and a comparative analysis of standard Simplex Method and the Push and Pull algorithms in solving Linear Programming problems. Linear Programming is a branch of Operation Research in the field of mathematics. As a result of the complicated nature of solving and determining accurate results from linear programming problems, various methods and algorithms have been developed to reduce the complications and increase efficienc...

Microbial Analysis and Proximate Composition of Boiled and Fried Local Cheese (WARA)

Fried cheese locally called Wara gets spoiled when  attacked by pathogenic bacteria, as a result of poor hygiene  practice by the producer and handlers. Wara samples were  bought in Ilesha at Atakumosa market square Osun-state. This  research was designed to isolate and enumerate microorganisms  using standard microbial methods, proximate composition and  the nutritional composition of boiled local and fried cheese  (wara). Proximate analysis was carried out to determine  nutritional ...

IMPLEMENTATION OF HUMAN RESOURCE MANAGEMENT SYSTEM BASED ON CLOUD COMPUTING PRINCIPLES

ABSTRACT In other for a business/firm to get the best out of its employees and a high return on its investment in people, the human resources must be well managed. A good human resource management system brings consistency in human resource management practices and improves human relations in the company thereby enhancing individual/organizational effectiveness. With larger firms/organizations, it becomes increasingly difficult to manage a large number of human resources. Therefore, human r...

LABORATORY REPORT ON THE DETERMINATION OF THE MOISTURE AND CLAY CONTENT OF GREEN SAND

The quality of castings in a green sand mould is influenced significantly by its properties, such as green compression strength, permeability, mould hardness, and others, which depend on input parameters. The relationships of these properties with the input parameters, like sand grain size and shape, binder, water, clay, etc. are complex in nature. The goal of this paper is to determine the green sand mould compressive strength in case of input parameters. A good moulding sand however, must p...

Trend of Neonatal Mortality in Nigeria from 1990 to 2017 using Time Series Analysis

The study examined the incidence of the rate of Neonatal Mortality in Nigeria. The incidence tested with use of Time Series Analysis (ARIMA). The trend plot of the incidence shows that there has been steady decrease in the incidence rate over the years. The series was stationarity using the Augmented Dickey-Fuller (ADF) Test, the result found to be stationary. The Correlogram of the incidence also supports the stationarity of the series at 1% level of significance. The model that best describ...

ESBL-producing Enterobacteriaceae

Background: Resistance to extended-spectrum cephalosporins among Enterobacteriaceae has been reported yet they serve as the last line treatment for severe infections in Uganda and other countries. This resistance often leads to nosocomial infection outbreaks and therapeutic failures from multidrug resistant bacteria. The main objective of this study was to determine the prevalence of extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae in clinical samples of patients in variou...


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