Cross River University of Technology

About: Cross River University of Technology is a education organization based out in Calabar, Nigeria. It is known for research contribution in the topics: Population & Exergy. The organization has 465 authors who have published 507 publications receiving 2705 citations.

Stabilization of Earth Block Using Rice Husk Ash as Partial Replacement in Cement

Abstract: The most outstanding problem militating the production of earth block in Nigeria, is the exorbitant prices of cement, rice ash replaced with cement, stabilized compressed earth block to carry load. The main objective of this study was to investigate the sustainability of earthen construction block with a partial replacement of cement using Rice Husk Ash (RHA). RHA is a bye-product material obtained from the combustion of rice husk which consists of non-crystalline silicon dioxide with high specific surface area and high pozzolanic reactivity using a set of sieves 3.35um 63um, weigh balance, oven maintained at a temperature of 105°C and 110°C, six meta trays, a bucket, a soap, wire brushes, and a mechanical shaker. It is used as pozzolanic material in earth block. Testing specimen were determined and examine in structural composition by means of unconfined compressive strength hydraulically compressed for crushing the composition of mix with RHA content ranges from 10% to 50% to respectively. The result of the compressed earth block shows a significant resistance of shear strength of 30 to 90 kg/mm 2 , proving that stabilized earth block can satisfactorily carry load when structurally loaded and can resist tensile and compressive stresses. Original Research Article Ubi et al.; CJAST, 40(12): 12-22, 2021; Article no.CJAST.68014 13

Physico-chemical properties and fatty acid composition of Lagneraria siceraria seed oil

Abstract: Oil was extracted from the dehulled seeds of Lagneraria siceraria (bottle gourd) and analysed for physico-chemical properties as well a fatty acid composition. Standard procedures were employed in all analysis. The seed oil was liquid at room temperature with percentage yield (23.65%). It was characterized in terms of specific gravity (0.918 g/cm 3 ), refractive index (1.34), viscosity (26.46 X 10 3 poise), melting point (11-14.5 °C), moisture content (0.18%), saponification value (203.36 mg KOH/g), unsaponifiable matter (7.13%), iodine value (46.1 g/100g), peroxide value (7.5 meq/kg), free fatty acid value (18.42%), acid value (60.02 mg KOH/g) and ester value (143.34 mg KOH/g). The oil is classified as nondrying (iodine value ˂115 g/100 g). The peroxide value indicates that the oil is less prone to rancidity with iodine value less than 30meq/kg. The high saponification value qualifies it for use in the manufacture of soaps and shampoos. Four classes of fatty acid were identified in the oil: palmitic acid (C16:1) (13.5 ± 0.21), stearic acid (C18:1) (6.5 ± 0.96), oleic acid (C18:1) (11.6 ± 0.62) and linoleic acid (C18:2) (68.4 ± 0.13). Linoleic acid was the most abundant fatty acid in the oil. The fatty acid content of the oil revealed that L. Siceraria seed oil could be a rich source of oil for domestic and industrial purposes if richly exploited.

Broadcast media coveragae of corruption issues in nigeria: a study of goodluck jonathan administration and president mohammendu buhari administration

Abstract: Corruption is not a nascent phenomenon, it emanated from the incipient of time. Before Nigeria got independence, corruption existed. Even in the religious parlance, there were certain elements of corruption. There have been cases of nepotism, favouritism and partisanship especially when it comes to conducting elections into positions in the church to decide who head the post, the process is politicized. The imperativeness of broadcast media can't be over stressed, broadcast media play a crucial role in cushioning social vices. The paper appraises Broadcast media coverage of corruption issues in Nigeria: A Study of Good luck Jonathan administration and president Mohammedu Buhari administration. The paper utilized survey method, four objectives and four research questions were set out to guide the study. Agenda setting theory was adopted for the study. Data collected were analyzed and presented in tables and percentages. The paper concluded that broadcast media is giving high coverage of corruption issues in Nigeria in President Mohammedu Buhari's administration to Goodluck Jonathan administration. The study recommends that EFCC and ICPC should strengthen collaborations with broadcast media so as to boost campaign against corruption in Nigeria. More so, EFCC and ICPC should be given a free playing field to arraign and prosecute whoever is perceived to have dent and suspicious reputation that portray him/her to be corrupt, irrespective of party affiliation.