Biological Science Research Papers/Topics

Influence of Teachers’ Characteristics on Students’ Academic Performance in Biology in Selected Secondary Schools in Ilorin Metropolis

ABSTRACT Academic performance of students is the basis for achieving the general aims and objectives of education which is to provide integrated citizenry who will be useful to themselves and the society at large. In view of this, this study conducted an Influence of Teachers’ Characteristics on Students ‘Academic Performance in Biology in Selected Secondary Schools in Ilorin Metropolis. The descriptive research survey was adopted for the study. Simple random sampling technique was emp...

Fruit and Vegetable Contamination with Medically Important Geohelminths and Gastrointestinal Protozoa in Oyi Local Government Area, Anambra State, Nigeria

Abstract This study was conducted to determine the level of fruits and vegetable contamination with medically important geohelminths and gastrointestinal protozoan parasites in Oyi Local Government Area. A total of 600 fruits and vegetables were purchased from the daily markets located in five communities in the study area in the morning hours from 7:00 am to 10:00 am. They were washed with saline water and examined microscopically for helminths and gastrointestinal protozoan parasites by sed...

Fungal Culture From Yam Rot Using Different Dextrose Agars

ABSTRACT The effectiveness of cotton seed dextrose agar, groundnut seed dextrose agar and kernel dextrose agar in culturing fungi was studied by culturing fungi from yam rot (Dioscorea rotundata). The research demonstrated the choice of the isolated fungi to various media, and revealed that some of the isolated fungi showed the same occurrence in different media. Aspergillus flavus showed preference for kernel dextrose and groundnut seed dextrose agar than Sabouraud dextrose agar and cotton s...

Studies on Incidence and Effects of Temperature and Relative humidity on Post harvest rot of Cocoyam (Colocasia esculenta) in Gombe community, Gombe State, Nigeria

Studies on incidence and effect of temperature and relative humidity on post-harvest rot of cocoyam (Colocasia esculenta) were conducted in Bolari, Pantami and Tudun Wada district headquarters in Gombe LGA of Gombe state, Nigeria. The aim was to determine the incidence and severity of post-harvest rot of cocoyam (Colocasia esculenta), to isolate and identify the fungi responsible for the rot, to determine the virulence of the pathogen and the effect of temperature and relative humidity on...

A Discussion on Microcystis Aeruginosa as a Disturbance Indicator of Water Quality

TABLE OF CONTENT  An Indicator Species & Identification  Description of Microcystis aeruginosa  Ecological Characteristics, Evolutionary Strategies & Ecological Class  What Makes Microcystis aeruginosa an Indicator of Disturbance   Successional Status  Agents that Promote Microcystis aeruginosa  Usefulness offs an Indicator References   References

The Relationship Between the Abundance of Alien Invasive Semimytilus Algosus on the Abundance of Native Perna perna Along the Intertidal Zone of Dolphin Beach

Table of Content Introduction  Objectives  Study design  Data collection  Results  Discussion  Conclusion  References Introduction  Alien invasive species are introduced accidentally or intentionally outside of their natural geographic range & become problematic.  Semimytilus algosus spreads from the point of introduction, rapidly colonising & establishing populations on the rocky shore, disrupting native perna perna species (Alexander et al. 2015) Semimytilus algosus is native ...

Interferometric Analysis Of Cellophane Sheet For Broad Band Application In Phase Retardation

ABSTRACT The analysis of cellophane sheet as a phase retarder is reported. Several cellophane sheets were tested for birefringence and compared with a purpose built half wave plate (HWP). A Mach-Zehnder interferometer was used to generate interference patterns when the cellophane sheet was half-way mounted on one arm of the interferometer. Analysis of the interferograms revealed a clear phase shift which was calculated to be 0.98π. The fast axis was determined to be along the length of the c...

Calcium Chloride Supported On Purified Spent Bleaching Earth As Potential Adsorptive Material For Air Dehumidification Application

ABSTRACT The cosmic limitation of high humid environment in tropic regions spurs a lot of interest to the development of low cost desiccants. Calcium chloride has been indicated as the oldest adsorbent desiccant among chemicals and gas dehydration industries. However, calcium chloride dissolution behaviour makes it difficult to be utilized well as desiccant. The first attempt to suppress deliquescence behavior for dehumidification purpose was in 1976 where silt loam was used as the host mater...

Effects Of Biochar And Compost On Soil Physicochemical Properties And Maize Yield In Acidic Ferralsol In Kamiti Sub-Catchment, Kiambu County, Kenya

ABSTRACT The rapidly increasing global population, climate change and dwindling resources have made it very difficult to meet global food demand. To address the issue of food insecurity, sustainable intensification of agriculture (SIA) has been proposed. However, the consequences of poorly managed agricultural intensification can negatively affect the ecosystem. Biochar and compost application has been widely recommended as a highly promising soil fertility replenishment option to promote sus...

Application Of Mass Transport Model To Study Temporal Variation Of Concentration Of Lead In A Riverine System

ABSTRACT Heavy metal contamination within river systems is a major environmental problem around the world. An environmental model was developed to simulate the temporal variation of concentration of lead discharged into a riverine system. The model was developed by solving the transport equation which governs the concentration of lead. The equation has advection, dispersion, sink and source terms. The equation was discretised and converted into a language compatible with a computer. A compute...

Mechanical, Diffusion And Degradation Behaviour Of Polypropylene And Cellulose Blends

ABSTRACT Polypropylene is one of the most important commodity polymers and is used in many areas. Its applications are often limited due to its low impact strength, Young‟s modulus properties and non-biodegradability nature. Blending polypropylene with different polymers is an economic and effective way to improve these drawbacks. Polypropylene/wood flour blends have undesirable properties; they have weak structural rigidity, very low thermal stability and high diffusivity. Cellulose is lin...

Evaluation Of Antimicrobial Activity Of Some Plants Used By Traditional Healers For Treatment Of Microbial Infections In Kakamega District: Kenya

Abstract Resistance to drugs especially antibiotics has become a major challenge facing the medical fraternity today. Most antibiotics that were once effective against pathogenic micro-organisms have now been rendered ineffective owing to resistance developed by these pathogens. This scenario has been complicated by the emergence of HIV/AIDS, which renders the victims immuno-compromised, and open to opportunistic infections. At the same time, most of the African population lives below the pov...

Accessibility and Use of Family Planning Information (FPI) by Rural People in Kilombero District, Tanzania

Abstract This study investigated the accessibility and use of family planning information (FPI) by rural people in Kilombero District, Tanzania. The purpose was to examine the entire infrastructure required for accessing and using FPI in a rural setting. The study surveyed 120 respondents using questionnaire, interview protocols and observation guides. The respondents included women and men of reproductive age, and Maternal and Child Health (MCH) clinic staff. The study revealed that there i...

Biological Assessment Of Tropical Riverine Systems Using Aquatic Macroinvertebrates In Tanzania, East Africa.

In Tanzania, and in East Africa in general, bioassessment methods for monitoring and assessing riverine ecosystems are not yet in place. This thesis describes the development of a macroinvertebrate-based bioassessment method for assessing the degree of anthropogenic disturbance in Tanzanian rivers. The hypotheses that, ‘macroinvertebrate assemblages reflect disturbance in river systems’; ‘rivers with similar abiotic features have similar macroinvertebrate assemblages’; and ‘spatio-t...

Potability Of Borehole, Bottled, And Municipal Water In Harare

ABSTRACT Human health depends on reliable access to safe drinking water, but in many developing countries there are problems of accessing it. This is mainly attributed to water pollution, poor infrastructure for potable water treatment and unhygienic practices in water bottling companies. This study was carried out to assess the physico-chemical and microbiological quality of borehole, bottled and municipal water in Harare (Zimbabwe), by evaluating the compliance of each water type with WHO s...


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