Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

DESIGN AND IMPLEMENTATION OF MOBILE ONE-TIME PASSWORD AND RIVEST CIPHER FOUR ENCRYPTION FOR CLOUD COMPUTING SECURITY

ABSTRACTThe use of cloud computing in recent times has recorded remarkable growth while securityand privacy issues have remained a critical challenge and a thing of concern forresearchers. The reason partly is associated to the fact that most users do not have baselineknowledge of how to securely use cloud services and as such they end up becoming victims,because hackers take advantage of their inadequate knowledge. This thesis is on theDesign and Implementation of Mobile One-Time Password an...

Codigestion of Oryza sativa Husks and Musa paradisiaca Peels for the Production of Biogas

Oryza sativa husks and peels of Musa paradisiaca were pretreated by hydrothermal and acid fermentation using cassava mill effluent, and co-digested in a laboratory scale reactor maintained at 45 ± 2 ⁰C for 42 days. Five digesters were used for the experiment and each digester contained equal proportion of Oryza sativa husks and Musa paradisiaca in the ratio of 1:1; and cow dung (the inoculum) was added across. Substrate in Digester X (Control) was not pretreated. Digester A contained Oryza...

NoSql data collection on comparative analysis of Archaea economic importance and other domain of life

verviewStatsCommentsCitationsReferences (29)Related research (10+)AbstractEnvironmental investigations show that the Archaea are diverse and abundant not only in extreme environments, but also in soil, oceans and freshwater, where they may exhbit a key function in the biogeochemical cycles of the planet. Archaea display unique capacities, such as methanogenesis and survival at temperatures higher than 90 °C that make them crucial for understanding the nature of the biota of early E...

Kinetic studies of the biosorption of lead and zinc from solution using tea fibre

Abstract: This paper presents a biobsorption study on Zn and Pb(II) from dilute aqueous solution using tea fiber as the biosorbent. The biosorption study was carried out as a function of contact time, initial metal ion concentration and biosorbent dosage. The residual Zn and Pb(II) in solution were determined using atomic absorption spectrophotometer. The biosorption was also time dependent as maximum biosorption was obtained after 10 and 20 min, for both lead and zinc respectively. Kine...

FERTILITY ENHANCING POTENTIAL AND METABOLIC EFFECT OF ETHANOLIC ROOT EXTRACT OF SPHENOCENTRUM JOLLYANUM IN MALE WISTAR RATS

CHAPTER ONE1.0    INTRODUCTIONProcreation is an important moral and religious issue and aphrodisiacs are sought to ensure both male and female potency. Sexual potency is part of the male ego, the anxiety and the humiliation that are associated with a declining sexual ability are common to all cultures. That is why the popularity of aphrodisiacs has not shown any sign of decline throughout history. Successful treatment of sexual dysfunction may improve not only sexual relationships, ...

FERTILITY ENHANCING POTENTIAL AND METABOLIC EFFECT OF ETHANOLIC ROOT EXTRACT OF SPHENOCENTRUM JOLLYANUM IN MALE WISTAR RATS

The overall objective of this study is to scientifically evaluate the claimed fertility enhancing potential and to assess the metabolic effect of the ethanolic extract of  Sphenocentrum jollyanum pierre (Menispermaceae) root using male wistar rats as model.The specific objectives include the following·         To determine the proximate and phytochemical composition of the ethanolic extract of Sphenocentrum jollyanum  (root) this will ...

The Security Implications of Virtual Local Area Network VLAN Niger Mills Calabar Nigeria

Virtual local area network (VLAN), is a logical grouping of network users and resources connected to administratively define the operation of activated ports on a switch. The creation of VLAN is saddled with the ability to develop smaller broadcast domain within a layer-2 switching router; by assigning different ports on the switch to different sub networks. The application was a re-design project carried out on the Niger-Mills’ network to improve the operational short falls identified b...

Modeling a low potency ipnetwork in Nigeria.

— Investigations have shown that interior places of the nation lacked capacity for high speed Internet usage; except the cosmopolitan sections. This article, therefore, conceptualizes a robust Broadband roadmap that can effectively deliver IP-wholesale and IP-retail services, through traffic convergence. The interconnect platforms are designed to ensure automatic re-routing of broadband traffic during link or node failure. The IP-wholesale services can be delivered to all main citie...

Kinetic studies of the biosorption of lead and zinc using tea leaf

Abstract: In this research work, Low-cost adsorbent was prepared from Camellia sinensis,physicochemical characteristics and the effective removal of Lead and Zinc from an aqueous phase were evaluated.The Camellia sinensis adsorbent precursor was characterized in terms of adsorbent dose, initial concentration and contact time. Aqueous phase adsorption studies were carried out under kinetic studies of pseudo first order, pseudo second order kinetics and the residue concentration of Lead and...

Computational studies of Sulphur trioxide and its protonated analogues

This article reports quantum chemical calculations on sulphur trioxide (SO3) and its protonated analogues (HSO3+and HOSO2+) by employing six different computational methods. This covers the simple Hatree Fock (HF) method, coupled cluster method, the Gaussian-4 (G4) compound method amongst others with two different basis sets (6-311++G** and cc-pVDZ). Optimized geometries, bond distance, rotational spectroscopy, dipole moment, proton affinity, vibrational spectroscopy and vibrational zero-...

Medicinal Chemistry Comparative Phytochemical Screening on Three Growth Stages of Pennisetum Pedicellatum Trin

A comparative preliminary study on the extraction and phytochemical profile of methanolic extracts of the leave, stem and root of pennisetum pedicellatum Trin at three growth stages (i.e stage 1, stage 2, stage 3) was carried out. The extracts were analysed to determine the presence of phytochemicals in the plant. The study revealed the presence of alkaloids, flavonoids, saponins and steroids. Tanins were found only in the stems of the plants and steroids were found only in the leaves....

REVIEW OF FACTORS ASSOCIATED WITH URINARY SCHISTOSOMIASIS IN TWO PERI – URBAN COMMUNITIES IN SOUTH- WESTERN NIGERIA

Reasons for reviewing the article         •           Addresses a NTD that is of public health importance.             •           Focuses on factors associated with high prevalence and intensity of the disease           •           The disease is endemic in Nigeria

SYNTHESIS AND PROPERTIES OF COPPER NICKEL SELENIDE (CuNiSe) THIN FILM BY CHEMICAL BATH DEPOSITION METHOD.

Abstract:Thin films of Copper Nickel Selenide (CuNiSe) were synthesized on glass slides at room temperature using chemical bath deposition (CBD) method. The films were deposited from aqueous solution containing copper ion, nickel ion and potassium selenate (K2SeO4) at varying molar concentration of nickel ion with constant time and pH of the reaction bath. The optical absorption data reveals that films of CuNiSe absorbs strongly at the ultraviolet range of 300 nm and has above 60%...

PRODUCTION OF POTASSIUM SALT (K2SO4) FROM AGRICULTURAL WASTE (UNRIPE PLANTAIN PEELS)

ABSTRACT The production of potassium salt K2­SO4 from unripe plantain agricultural waste was carried out. The sample randomly sourced from canteens located in Owerri West, Imo State. From the result of analysis carried out on the peels was found to contain highest level of K 2.55 ± 1.54 mg/g. other mineral component found were Na 159 ± 1.3 mg/g, Ca 101 ± 0.95 mg/g, Mg 75 ± 0.55 mg/g, Fe 5.8 ± 0.06 mg/g, P 36 ± 1.65. The yield of potassium sulphate, the target of this wor...

PROXIMATE AND CHEMICAL CHARACTERIZATION OF AFRICAN ELEMI NUTS

ABSTRACT The proximate compositions of African elemi nut were investigated by analyzing the moisture content, crude fat, ash content, crude fibre, crude protein and total carbohydrates in the nut. The associations of official analytical chemist (AOAC, 2000) methods were used. The values obtained from the proximate analysis were; moisture content (28.79%), ash (3.41%), crude fiber (2.84%), fat (30.42%), protein (8.40%), carbohydrate (26.14%). The GC-MS characterization revealed th...


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