Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

Reviewing Cyber-attack Incidents and Their Impacts on Global Oil and Gas Infrastructures: A Nigerian Perspective

ABSTRACTOil and Gas sector includes the exploration, gathering, production, processing, storage, and transportation of petroleum liquids and natural gas. With the oil and gas sector fueling every aspect of our daily life, the protection of its critical infrastructure is crucial. It is known that digitally connected oil and gas operations help to improve production (General Electric, 2018). So, in order to sustain uninterrupted energy production and for quick recovery from major cyber incident...

Effect of EDTA on Tomatoes Plants Seedlings Under Nickel Toxicity

CHAPTER ONE1.0 INTRODUCTION 1.1     NICKEL1.1.1  Occurrence         Nickel (Ni) is a metallic element,with atomic number 28; atomic weight 58.69. Is a metal, which belongs to group VIIIB of the periodic table. The most important oxidation state of nickel is +2, although the +3 and +4 oxidation states are also known (Tundermann et al., 2005). Nickel resembles iron, cobalt, and copper in its chemical properties. However, unlike cobalt and iron, ...

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 re...

NOVEL CHEMOTHERAPEUTIC TARGETS FOR THE CONTROL OF SCHISTOSOMIASIS

ABSTRACT      Schistosomiasis is a water-borne parasitic disease caused by schistosomes and transmitted by fully aquatic or amphibious freshwater snails in whose bodies the human-infective larvae, cercariae, develop. Adult schistosome worms colonise human blood vessels for years, successfully evading the immune system while excreting hundreds to thousands of eggs daily, which must either leave the body in excreta and/or urine or become trapped in nearby tissues. Trapped eggs ...

Application of mycology in forensic science

Abstract Forensic Mycology is the application of Mycology for producing evidence in terms of criminal investigation and their further evaluation in the court of law. The problem with relative neglect of Mycology in Forensic science is currently leading to insufficient knowledge, in order to support the needs for fungal expertise in areas of criminal investigation. Mucor hiemalis and Penicillium griseofulvum had been used to determine the minimum interval since death, Coprinus comatu...

MICROBIOLOGICAL EFFECT OF FERMENTATION ON THE NUTRIENT, ANTINUTRIENTS AND FUNCTIONAL PROPERTIES OF FERMENTED LIMA BEANS SEEDS (Phaseolus lunatus).

ABSTRACT Semi- solid raw Lima beans (Phaseolus lunatus) were fermented for a period of ten days, chemical (proximate composition, antinutritional contents, pH, and total titratable acidity) and physical changes (temperature, odour, and texture) occurring during the fermentation of the lima beans were monitored. The fermentation was carried out for 48, 96, 120, 168 and 192 hours respectively at ambient temperature. The microbial load was as well monitored. Microorganisms isolated fr...

Fingereye: improvising security and optimizing ATM transaction time based on iris-scan authentication

The  tumultuous  increase  in  ATM  attacks  using  eavesdropping,  shoulder-surfing,  has  risen  great  concerns.  Attackers  often  target  the  authentication stage where a customer may be entering his login information on the ATM and  thus  use  direct  observation  techniques  by looking  over the  customer's shoulder to steal his passwords. Existing authenticatio...

NETWORK BASED SECURITY INFORMATION SYSTEM

CHAPTER ONEINTRODUCTION1.1    IntroductionSecurity on the Internet and on Local Area Networks is now at the forefront of computer network related issues.  The  evolution  of  networking  and  the  Internet,  the  threats   to   information   and   networks   have   risen   dramatically.   Many   of   these   threats   have   become   cleverly    exercised    attacks    causing    damage    or    committing   theft.   The   Internet   ...

Design and implementation of a Simple word processor

CHAPTER ONEINTRODUCTION1.1 BACKGROUND OF THE STUDY The importance of computer cannot be over emphasized with respect to designing and implementation in text editing package which could be in sciences, engineering, business or government etc.  Consequently, computers are becoming indispensable. This is obviously true in developed countries; like Nigeria is gradually being gravitated into computer oriented society with professional engineers, analyst, design and implementation of...

Physicochemical and rheological characterization of pectin-rich fraction from blueberry (Vaccinium ashei) wine pomace

Blueberry wine pomace is rich in pectin, which has been extensively used as a functional dietary fiber and a rheological modifier in the food industry. This paper reports a method to extract the pectin-rich fraction (PF) with a mediate degree of esterification of 51.66% from blueberry wine pomace and provides insight into its relationship between the structure and rheological properties. The impacts of related extrinsic factors, such as sucrose, ions and pH, were also studied in view of food ...

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...

Human colonic microbiota modulation and branched chain fatty acids production affected by soy protein hydrolysate

Several functional properties have been attributed to soy protein hydrolysates (SPHs); however, their gut fermentation needs to be investigated. This study aimed to determine the effect of hypo-allergic pepsineduced SPH on the growth of gut microbiota, SCFA and BCFA production in a pH-controlled, stirred, batch culture fermentation system compared with commercial SPH and soy protein isolate (SPI). The results showed that all substrates affected gut bacteria. SPH selectively increased the n...

REAL-TIME DRUG INTERACTION, VERIFICATION AND AUTHENTICATION

Counterfeiting is the concern of everyone – the consumers and the manufacturers alike. Drugs counterfeiting has been on the increased, the market is not sought for and the income is on the high side but to the detriment of both the consumers, suppliers and manufacturers. Technology can be of utmost importance in this area via the development of an interacting and authenticating system with a database that will authenticate drugs. The drug interacting authenticating systems will confi...

VIBRATION ANALYSIS OF PIPELINE SUPPORTED BEAMON ELASTIC FOUNDATION USING FOURIER TRANSFORM METHOD

ABSTRACTElastic foundation can be refered to as soil surface that can expand and assume its original position on application of force. Numerous research works has been carried out on pipeline supported beam using different method of analysis such as Differential Transform Method, Finite difference Method Finite Quadrature Element Method and so on. This work examines the vibration analysis of pipeline supported beam on elastic foundation using Fourier Transform Method in form of non-prismatic...

MICROBIAL QUALITY ASSESSMENT OF LOCALLY PRODUCED KUNU SOLD AT TANKE AREA OF ILORIN METROPOLIS

Nine samples of freshly prepared kunu was taken from local vendors and hawkers at Tanke area, Ilorin, Kara State and analyzed for microbial quality. The pH of the samples ranged from 2.66 to 4.06. The total bacterial count ranged from 1.5×104 to 7.4×104 cfu/ml; the total coliform count ranged from 1.0x102 to 8.0x103cfu/ml; the faecal coliform count ranged from 0 to 3.0x103cfu/ml; the total fungi count ranged from 3.2x104 to 2.7x105cfu/ml. The presence of high microbial load was an indicatio...


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