Past Issue

The floristic diversity and the carbon stock evaluation in on some peripheries sites of the douala-edea wildlife reserve in Cameroon

The study carried out in three of the 61 villages of the reserve during the period of December 2014 to April 2015 with the objective of evaluating floristic diversity and carbon stock in these three villages. 60 transects, each of 250 m length and 20 m wide, for total area of 30 ha was used to evaluate the carbon stock. The chosen carbon reserve was the epigeneous carbon and the non-destructive method through the allometric equations based on the dendrometric measurements were used. The amount of atmospheric CO2 absorbed by forest was obtained by multiplying carbon stocks by 3.67.

Quadrotor reference guide: Mathematical model, representation of inertia and computational application

The quadrotor is the base research on situations involving movement and air transport, being technological solution for applications in industrial, academic, civil and military systems. The research area of quadrotors lacks complete and detailed information, with bibliographic material of high complexity of representation, punctual approaches, incomplete models and lack of reference information.

Daily habits associated with the risk of cardiovascular diseases in physical education academics of a private institution of vitória da conquista- Bahia

Objective: The objective of this study was to analyze the lifestyle and its relationship with demographic characteristics, risk behaviors and health conditions in university students of the Physical Education course of the Faculty of Technology and Sciences of Vitória da Conquista - BA. Methods: Epidemiological, transversal and observational study, with field research procedure. The data were collected by means of a questionnaire and soon afterwards an anthropometric evaluation was carried out, with the aid of a stadiometer, an anthropometric test and a balance.

Fish diversity and physicochemical parameters in tiger point water fall of mainpat hill, in Surguja District, Chhattisgarh, India

The present investigation has been made to investigate the physicochemical condition and fish diversity of Tiger point water fall of Mainpat hill from January to December 2017 During the entire study period total 18 fish species belonging 5 families and 14 Genera were recorded, Cyprinidae was the largest dominant family contributing 12 species.

Isolation and identification of bacterial population from various soil samples

The soil is one of the main reservoirs of microbial life. Typical garden soil has millions of bacteria in each gram. The most numerous microbes in soil are bacteria. Soil bacteria include aerobes and anaerobes with a wide range of nutritional requirements, from photoautotrophs to chemoheterotrophs. As usable nutrients and suitable environmental conditions (such as light, aeration, temperature) become available, the microbial populations and their metabolic activity rapidly increase until the nutrients are depleted or physical conditions change, and then they return to lower levels.

Development of composites and assessing the durability and acceptability of the composites in saline water

Composites began to be used more and more in every day commodities like bath tubs, railings, electrical goods, sports equipment, aerospace and ship industry. Now their applications have enhanced says Tang et al. (1997). The greatest advantage of composite materials is their strength and stiffness combined with lightness. By choosing an appropriate combination of reinforcement and matrix material, manufactures can produce properties that exactly fit the requirements for a particular structure and for a particular purpose.

Impact of haemorrhagic gastroenteritis on canine total leucocyte count and differential leucocyte count

Haemorrhagic gastroenteritis (HGE) is caused by viruses, bacteria, endo-parasites and even by food allergy as well as irritant drugs. Clinical signs include fever, vomiting and severe bloody and foetid diarrhoea with marked dehydration. Present study was conducted to evaluate alterations in total leucocyte count (TLC) and differential leucocyte count (DC) in twenty six dogs, out of which thirteen dogs were naturally infected with haemorrhagic gastroenteritis and the rest were treated as control.

Analysing neo-tectonic effects on gully development within orlu and environs south-eastern nigeria from landsat imagery and azimuthal sounding data

Geophysical study was carried out in some gully erosion sites within Orlu and environs with the objectives of identifying tectonic and neo-tectonic features, delineate their trends and evaluate their effect in gully development and propagation in the study area. Detailed geological field mapping was carried out to characterize the gullies and to estimate the strikes and directional trends of the gullies. Similarly, GIS interpreted Landsat-ETM imageries were also used to determine the lineaments and their trends in the study area.

Nutrient removal and balance in vertical-flow constructed wetlands planted with different forage macrophytes for domestic wastewater treatment

This study investigated nutrient removal as well as nutrient balance in a vertical flow constructed wetland planted with Andropogongayanus, Chrysopogonzizanioides, Echinochloapyramidalis, Pennisetumpurpureum and Tripsacumlaxum for treating synthetic domestic wastewater. The experiment was conducted under pilot-scale composed of six beds constructed with bricks. Each bed was filled from the bottom to the top with 0.1 m of gravel and 0.6 m of white lagoon sand. Five beds were transplanted wile one unplanted was used as control.