Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Efficacy of Essential Oils from Persea Americana stem bark and Seed extracts

 The aim of the study is to evaluate the Antibacterial, Phytochemical analysis of Essential Oil, From the Stem Bark and seed extracts of Persea americana (Avocado). This was carried out by the crude extraction of the seeds and stem bark extracts with n-hexane. The extracts were used to determine the presence of Phytochemicals. Stock cultures of test organism such as Staphylococcus aereus, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginosa, Bacillus cereus, Proteus mirabilis were...

FIELD REPORT ON THE GEOLOGICAL MAPPING OF IGARRA AREA

Basically, geological mapping involves the study of rocks; in situ, that is, in their natural environment and the representation of such rocks on a geological map. Furthermore, rocks of the Igarra area constitute part of the Basement Complex of southwestern Nigeria. On the basis of field relationships and petrological studies, these rocks can be grouped into gneissic rocks, meta-sedimentary assemblages, intrusive igneous rock bodies and sedimentary rocks (formations).             T...

Investigation of thermophysical properties of alates (swarmers) termite wing as potential raw material for insulation

Thermo physical properties of Alates (Swarmers) termite wing has been investigated. The result of our investigation shows the values of thermo physical parameters of the sample materials as 0.0403Wm-1K-1 being the mean thermal conductivity value, bulk density of 188. 8kgm-3 and thermal diffusively value being 8.2485 x 10-8m2s-1. The values are within the values for commonly used insulating materials. Comparing the rate of cooling as well as heat absorption into the material as lagging materia...

Evaluation of Reservoir’s Petrophysical Parameters, Niger Delta, Nigeria

Petrophysical analysis was performed in two wells in the Niger Delta Region, Nigeria. This study is aimed at making available petro-physical data, basically water saturation calculation using cementation values of 2.0 for the reservoir formations of two wells in the Niger delta basin. A suite of geophysical open hole logs namely Gamma ray; Resistivity, Sonic, Caliper and Density were used to determine petrophysical parameters. The parameters determined are; volume of shale, porosity, water sa...

Assessment of Nephrotoxicity, Anti-Inflammatory and Antioxidant Properties

The purpose of this work is to assess the effect of nephrotoxicity, anti-inflammatory and antioxidant properties of epigallocatechin, epicatechin and stigmasterol phytosterol (synergy) isolated from ethyl acetate stem bark extract of Spondias mombin on wistar rats using molecular method of analysis. The selected biomarkers used for this work are GapdH, KIM-1, IL-1B, GSR, CAT, GPX-1 and IL-1Alpha at 30, 100 and 1000 mg/ml concentration. Seven week-old, male wistar rats from the Centre for Bioc...

Phenotypic identification and antibiogram profile of citrobacter species

The administration of antimicrobial agents on patients had a major impact on the rate of survival from infections. However, the evolving and the changing patterns of antimicrobial resistance posed a threat and caused a demand for review of the existing antibiotic policy or a demand for new antibacterial agents. This study was designed to determine the phenotypic identification in Citrobacter species and Antibiogram profile of citrobacter species isolated from University College Hospital (UCH)...

Antibacterial and Antifungal Efficacy of Partially Partitioned Fractions of Spondias mombin (Linn) Extracts (Root, Leaf and Stem Bark) against Clinical and Environmental Isolates

The purpose this research work is to determine the antibacterial and antifungal assay of partitioned fractions of S. mombin (Linn) extracts against clinical and environmental isolates. The root, leaf and stem-bark of S. mombin were harvested and air-dried. The dried S. mombin was milled into powdered form using manual grinder. Powdered S. mombin (1 kg) each of the different S. mombin parts was extracted with 3 L of 70% (v/v) ethanol, ethyl acetate and distilled water for 72 h at room temperat...

FLORISTICS AND STRUCTURE OF FALLOW VEGETATION

Vegetation-environment (soil) was studied in fallow plots in Uyo, ranging from 0-year-old to 6-year-old. Systematicsampling method was used to sample both vegetation and soil. The parameters determined for vegetation included; Height,Frequency, Basal area and Crown cover for all species. The soil physical and chemical properties were also determined.Results obtained showed that there were eight (8) plant species in the 0-year old plot, 12 species in the 2-year old plot,20 species of plants in...

Comparative Studies on the Pedological Characteristics, Morphological Traits and Productivity Indices of Three Species of the Genus Ipomoea in Uyo Metropolis, Akwa Ibom State, Nigeria

Comparative studies on the pedological characteristics, morphological traits and productivity indices of three species of the genus Ipomoea was done in Uyo metropolis, Akwa Ibom State, Nigeria. Morphological parameters (leaf length, leaf width and leaf area index) and productivity indices (chlorophyll a, b carotenoids and Chlorophyll Concentration Index (CCI)) of these species were determined using standard methods. The results showed that amongst the three species studied Ipomoea mauritiana ...

The Role of Scientists Warning in Shifting Policy from Growth to Conservation Economy

We are pleased to see the three follow- up letters concerning our “World Scientists’ Warning to Humanity: A Second Notice” (Ripple et al. 2017). Each letter expresses a thoughtful, heartfelt response to our paper. We agree in how they describe the need to get more scientists into policymaking positions (Dror), to create a new global environmental ethic (Skubała), and to recognize economic growth as a major driver of environmental impacts (Pacheco et al.). The letters rais...

Regional Geoelectrical Survey Across Some Parts of Anambra and Niger Delta Basins, South-Eastern Nigeria.

A regional geoelectrical study was embarked upon covering some major towns within the Niger Delta and Anambra basin. Some of the towns include; Owerri, Umuahia, Ohafia, Aba, Umuosu, Ngwa, Mbaise, Okigwe, Lekwesi, etc. About 100 Vertical Electrical Sounding points were established along two long profiles running perpendicularly to each other at North-South and East-West directions covering a distance of about 110km in each traverse. The maximum electrode spread was 500metres, AB/2. The schlumb...

Application of Very Low Frequency- Electromagnetic (VLF-EM) Method to Map Fractures/Conductive Zones in Auchi South western Nigeria.

Geophysical survey involving very low frequency electromagnetic technique was applied to investigate possible geologic features like fractured / conductive zones in Auchi and its environs in Edo state, Southwestern Nigeria. The study area is located within latitudes 7o05’ N.to 7o10’N. and longitudes 6o11’E to 6o22’E The geologic Formations outcroping in the area are mainly Ajali and Nsukka. Three profiles were taken along the roads from Auchi to Igara, Auchi to Fugar and Auchi to Ulok...

Multidrug Resistant Salmonella enterica Strains in South Western Nigeria: Prevalence and Susceptibility to Ceftriaxone

Aims: To investigate the prevalence and susceptibility pattern Salmonella enterica strains to ceftriaxone in southwestern Nigeria. Place and Duration of Study: Faculty of Pharmacy, University of Ibadan, Nigeria from November 2012-May 2013. Methodology: Isolates of Salmonella enterica were characterized by established standard cultural and biochemical tests and was screened in-vitro for their sensitivity to different antibiotics (ampicillin, amoxicillin, chloramphenicol, cotrimoxazole and ceft...

Juxtaposition of Windows 10 and Window XP

Research work on windows operating system . A well written comparison between windows xp and window 10

Microbiology of Meat Spoilage

This paper is titled 'Microbiology of Meat Spoilage'. It clearly explains those Spoilage microorganisms associated with the Spoilage of meat and meat products and also the preservative method to be used in preserving meat. On the basis of its high moisture content and presence of adequate nutrient, meat is regarded   as   the   most   perishable   product   (Magnus,   1986)   and   thereby   highly susceptible   to   spoilage   by   microbial proliferation.  Apart...


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