Histochemical Characterization of Rain-Forest Strain of Onchocerca Volvulus Microfilariae Isolated in Akamkpa, Cross River State, Nigeria.

2009 ◽  
Vol 9 (1) ◽  
Author(s):  
AW Essien ◽  
PC Inyang-Etoh ◽  
GC Ejezie
Author(s):  
Abidemi Olujide Ilori ◽  
Anusa Andrew Anusa

The subgrades of three different rural roads alignment were investigated with the aim to determine their geotechnical properties. The three roads are on two different geologic terrains. Two of the roads, the 18 km Yahe-Waniye-Wanakom road and the 6 km Okpoma-Okuku road are on Cretaceous sediments terrain, while the 8 km Ugboro-Imaje-Okuku road is on the Basement Complex terrain. Based on American Association of Highways and Transportation Officials (AASHTO) most of the soils classify as A-2-4, A-2-6 on the first two roads with A-7-5, A-7-6 soils interspersed between the A-2-4 soils. The A-2-4, A-2-6 soils were also encountered on the only alignment on the basement complex, but the A-7 group of soils were not encountered on this alignment. Based on The Transport Research Laboratory Road Note 31, subgrade quality on all the three alignments is classed into ‘S4 to S6’ subgrade class. In this classification scheme ‘S6’ is the subgrade of the highest quality.


2021 ◽  
Vol 18 (1) ◽  
pp. 44-51
Author(s):  
M. Abatcha ◽  
O.S. Odewumi

This study assessed the abundance and nesting sites characteristics of red-headed picathartes (Picathartes oreas) in protected and unprotected forest in Cross River State, from August 2016 to January 2017. Data were collected through oral interviews, and field observations, using area search and quadrant methods. Data on bird and nest were tested using one-way ANOVA and t-test while tree species diversity indices were calculated using Paleontological Statistics Software Package, version 16. Results revealed that a mean of 38±52 individual bird from six colonies were sighted during the survey. Higher number of 20 (52.63%) individuals from two colonies was recorded in the undisturbed montane rain forest of the Okwangwo Division of the Cross River National Park than the disturbed montane rain forest with 18 (47.37%) individuals from four colonies. A total of 40 (50%; n = 20 each) nests of red-headed picathartes were sighted during the survey around the undisturbed and disturbed montane rain forest respectively. All (100%; n = 40) the nests observed were attached to the south-eastern side of the rocks and all the nests were constructed with mud mixed with grass. Colony Six was on the highest altitude with an elevation of 529 m, followed by colony two with an elevation of 342 m while the lowest elevation was 195 m recorded in colony three. Tree diversity index was higher in the protected forest (3.352; 3.227) than in the unprotected forest (1.846). Characteristic features of Picathartes oreas habitat were rock, hill, valleys and rivers and streams. It was evidenced by the study that Picathartes oreas still nests both in the disturbed and undisturbed forest but the level of disturbance and type of crops grown may have impact on the nesting behaviour. Therefore, anthropogenic activities should be regulated in the area, to ensure the conservation of Picathartes oreas. Keywords: Picathartes oreas; abundance; nesting sites characteristics; unprotected and protected forest.


GIS Business ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 136-158
Author(s):  
Eneji Chris-Valentine Ogar ◽  
Petters Janet Sunday ◽  
Onnoghen Usang Nkanu ◽  
Asuquo Edung Etim

This study assessed the influence of teacher’s characteristics and other related factors in the implementation of Environmental Education curriculum in secondary schools in Cross River State, Nigeria. Two research designs were used, survey inferential and Expost facto research design. The study is located in the department of Environmental Education, University of Calabar, Nigeria. Two research questions converted into two hypotheses were formulated for the study.  A sample of three hundred (300) respondents were selected using the multistage random sampling technique comprising of twenty five (25) lecturers and two hundred and seventy five (275) postgraduate and final year undergraduate students in the department of Environmental Education, University of Calabar. Data was collected using a structured questionnaire, the instrument administration was done by the researchers and same were collected 100%. Pearson Product Moment Correlation Analysis and regression analysis were used to test the hypotheses at 0.05 significance level and 298 and 290 degrees of freedom respectively. The result shows that teacher’s characteristics do significantly influence Environmental Education curriculum implementation in secondary schools. The regression analysis also shows that 6 factors listed impedes the implementation of Environmental Education curriculum, while four were not significant factors influencing Environmental Education curriculum in secondary schools. It was however recommended that teachers with competence in pedagogic knowledge of Environmental Education with classroom management skill should be employed to drive the process, while arrangement should be put in place to make Environmental Education a subject for students to offer and write in final senior secondary school examination among other.


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