oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 11 )

2018 ( 69 )

2017 ( 51 )

2016 ( 46 )

Custom range...

Search Results: 1 - 10 of 4279 matches for " Umoh Ofonime Emmanuel "
All listed articles are free for downloading (OA Articles)
Page 1 /4279
Display every page Item
Combating Corrosion in Transmission Pipelines in Marine Environment Using Vernomia Amydalina as Inhibitor  [PDF]
Samson Nitonye, Umoh Ofonime Emmanuel, A. Ogbonnaya Ezenwa
Open Journal of Marine Science (OJMS) , 2018, DOI: 10.4236/ojms.2018.84025
Abstract:
Pipelines are system of pipes designed to transport liquids, gases or solid/ liquid mixtures over long distances. Some are used for domestic, household and sewage purposes. Others are buried underground or submerged in water for transportation of natural oil and gas (O & G) products. In this work, the specimens had to be kept in a workable state and steps were taken to prepare each specimen: all cuts and sheared edges were ground out to prevent them from becoming sites for preferential attack. The finishing of the specimen surface with grit abrasive paper (sand paper) and rinsing of the specimens in distilled water were done. Then degreasing of specimen in acetone and air-dried were carried out. Upon drying, the specimens were immediately weighed to obtain their initial weights. Twelve specimens were used for the test as follows: 6 Aluminum (Al); and 6 mild steel (MS) samples. With a 2 M concentration of Vernomia Amydalina (VA) extract solution, the MS and Al samples were immersed in different plastic containers containing 400 ml of seawater with pH value of 7.25 with no (0%) inhibitor added to it. A 5% (400 ml) of the VA solution was poured into the measuring cylinder for each sample-Al and MS. The specimens were suspended by the strings and completely immersed in the different percentage test media. The same procedure was carried out for each of the different percentages, 10%, 15%, 20%, and 25% and a total of 12 solutions were set up. The experimental procedure used was that seawater of 7.25 pH was obtained from Abonnema water front of Rivers State. At the end of every week (168 hours), the specimens were removed from the corrosive media. Observation and recording of appearance of the specimen noting sites were done. Cleanings of specimen with white handkerchief or tissue paper were carried out and washing of specimen with distilled water, scrubbing of specimen with a soft brush and dipping the specimen into acetone after washing, it was removed to air-dry and weighed. It is observed that optimum inhibition of coupons was obtained between 15% - 25% of VA solution during the first four weeks of testing. At the fifth week the inhibitor was gradually losing its effectiveness. This means that more inhibitor need be added at regular intervals to sustain the effectiveness of the inhibitor.
Seroepidemiology of Helicobacter pylori infection among children seen in a tertiary hospital in Uyo, southern Nigeria
Ofonime Michael Etukudo, Enobong Emmanuel Ikpeme, Emmanuel Eyo Ekanem
Pan African Medical Journal , 2012,
Abstract: Background: Helicobacter pylori infection occurs worldwide with higher seroprevalence rates in the childhood populations of developing countries. In Nigeria, there is a dearth of information concerning its occurrence in children and infection enhancing factors. A prospective seroepidemiologic survey to determine the prevalence rate and possible associations of environmental and socio-demographic factors with its seropositivity was therefore conducted. Methods: The subjects were children seen at the Children’s Emergency Unit of University of Uyo Teaching Hospital in southern Nigeria. Two hundred and thirty subjects, comprising 132(57.4%) males and 98(42.6%) females (male: female ratio= 1.3:1.0) with an age range of 0.5-15 years and a mean age of 5.0 (SD±4.0) years were recruited. The median age was 4.0 years. H. pylori immunoglobulin G (1gG) antibody was determined from serum samples stored at -200C using a commercial Enzyme-Linked Immunosorbent Assay (ELISA) kit, VicTorch. Results: The overall seroprevalence rate was 30.9% with a peak prevalence of 40.7% for the 6.0 to 10.0 years age group. H. pylori seroprevalence in our children is associated with low social class (p=0.038), increased household population (p=0.009), source of drinking water (p=0.014), type of convenience used (p=0.019) and the method of disposal of household waste (p=0.043). Conclusion: The seroprevalence of Helicobacter pylori infection in Nigerian children is high and is associated with low social class, poor domestic water and poor sanitation. Improvement of water supply, human and domestic waste disposal systems and ultimately poverty alleviation would control this bacterial infection that has severe long term consequences. Pan African Medical Journal 2012; 12:39
Penetrating Abdominal Trauma: Experience in A Teaching Hospital, Calabar, Southern Nigeria  [PDF]
Maurice Asuquo, Mark Umoh, Victor Nwagbara, Gabriel Ugare, Cyril Agbor, Emmanuel Japhet
International Journal of Clinical Medicine (IJCM) , 2012, DOI: 10.4236/ijcm.2012.35079
Abstract: Background: Penetrating abdominal trauma (PAT) typically involves the violation of the abdominal cavity by a gun-shot wound (GSW) or stab wound Recently several studies have favored a more conservative approach as opposed to mandatory exploratory laparotomy. Methods: Patients admitted in the University of Calabar Teaching Hospital (UCTH), Calabar, with PAT from January 2008 to December 2010 were prospectively studied based on a questionnaire. The total number of patients with PAT was compared with total number of emergencies, traumatic injuries and abdominal trauma seen during the same period. Results: A total of 48 patients presented with abdominal trauma: PAT 29 (60%) and blunt abdominal trauma (BAT) 19 (40%). The ages of the patients (28 male, 1 female) ranged from 3 - 62 years (mean 28.1 years). Gunshot wound (GSW) 11 (38%) patients, stab wound 8 (27.6%) patients and machete cut 4 (13.8%) patients ranked first, second and third respectively as causes of PAT. The commonest organ injury was perforation of the small intestine. Four (13.8%) patients were managed conservatively while 25 (86.2%) patients had laparotomy. The duration of admission ranged from 2 - 19 days (mean 10.5 days). Morbidity [surgical site infection (SSI)] and mortality were recorded in 2 (6.9%) and 3 (10.3%) patients respectively. Conclusion: Key areas that require attention have been highlighted. Revamping the ailing economy and gainful employment for youths are paramount areas that require prompt, dedicated and sustained intervention for reduction in violent crimes.
Blunt Abdominal Trauma in a Teaching Hospital, Calabar, Nigeria  [PDF]
Maurice Asuquo, Victor Nwagbara, Mark Umoh, Gabriel Ugare, Cyril Agbor, Emmanuel Japhet, Anthonia Ikpeme
International Journal of Clinical Medicine (IJCM) , 2012, DOI: 10.4236/ijcm.2012.37124
Abstract:

Background: Road traffic injury remains a major source of blunt abdominal trauma (BAT). Road traffic injury and other forms of trauma have become a major health problem throughout the world especially in low and middle-income countries. In a previous study (2005-2007), abdominal trauma constituted 79 (4.8%) of trauma cases; BAT, 40 (53%) and penetrating abdominal trauma (PAT), 39 (47%). Effective policies on road safety should be developed based on local research and not on adapted models. We present this study to highlight the possible effect of legislation on the ban of the use of motorcycles on blunt abdominal trauma. Methods: Patients that presented to the University of Calabar Teaching Hospital, Calabar with BAT from 2008-2010 were prospectively studied based on a questionnaire following the legislation prohibiting the use of motorcycles. Results: A total of 12,083 patients presented during the study period, trauma patients totaled 4942 (41%), of this, 48 (1%) suffered abdominal trauma: BAT 19 (40%), penetrating abdominal trauma (PAT) 29 (60%). The age range of the patients was from 5 to 48 years (mean 26.6 years) with a M:F = 5.3:1. Road traffic accident (RTA) 17 (90%) [Motorvehicle 7 (37%), motorcycles 10 (53%)] was the commonest cause of trauma. The spleen was the commonest injured organ 14 (74%). Conclusion: Road traffic injury constitutes a public health challenge and the hallmark is prevention. Legislation prohibiting the use of motorcycles may have been responsible for the reduction in BAT.

Evaluation of the in vivo antimalarial activity of ethanolic leaf and stembark extracts of Anthocleista djalonensis
Bassey Antia,Okokon Jude,Etim Emmanuel,Umoh Francis
Indian Journal of Pharmacology , 2009,
Abstract: Objective : To evaluate the in vivo antimalarial activities of ethanolic leaf and stembark extracts of Anthocleista djalonensis used traditionally as malarial remedy in Southern Nigeria in mice infected with Plasmodium berghei berghei. Methods : The ethanolic extracts of the A. djalonensis leaf (1000 - 3000 mg/kg/day) and stembark (220 - 660 mg/kg/day) were screened for blood schizonticidal activity against chloroquine-sensitive P. berghei in mice. The schizonticidal effect during early and established infections was investigated. Results : The A. djalonensis leaf extract (1000 - 3000 mg/kg/day) exhibited a significant antiplasmodial activity both in the 4-day early infection test and in the established infection with a considerable mean survival time, which was incomparable to that of the standard drug, chloroquine (5 mg/kg/day). The stembark extract (220 - 660 mg/kg/day) also demonstrated a promising blood schizontocidal activity in early and established infections. Conclusion : These plant extracts possess considerable antiplasmodial activities, which justify their use in ethnomedicine and can be exploited in malaria therapy.
Multi-drug Resistant Coagulase Positive Staphylococcus aureus from Live and Slaughtered Chickens in Zaria, Nigeria
Otalu Otalu,Kabir Junaidu,Okolocha Emmanuel Chukwudi,Umoh Veronica Jarlath
International Journal of Poultry Science , 2011,
Abstract: A total of 400 samples were collected from 200 live chickens and 200 slaughtered chickens and examined for the presence of S. aureus. The susceptibility of 13 coagulase positive Staphylococcus aureus isolates from chickens in Zaria, Nigeria to 12 antimicrobials was determined by disk diffusion method according to CLSI standards. Coagulase positive S. aureus isolates had 100% resistance to tetracycline, penicillin and erythromycin and were in addition resistant to other antibiotics including vancomycin (46.2%).
The Pattern of Respiratory Disease Morbidity and Mortality in a Tertiary Hospital in Southern-Eastern Nigeria
Victor Aniedi Umoh,Akaninyene Otu,Henry Okpa,Emmanuel Effa
Pulmonary Medicine , 2013, DOI: 10.1155/2013/581973
Abstract: Background. Respiratory complaints are commonly encountered in medicine and respiratory diseases place a high burden on healthcare infrastructure. Healthcare planning should be based on adequate information: this study will help us to analyze the pattern of respiratory disease admissions in the medical wards in a developing country. Methods. The medical records of patients admitted into the medical wards over a 5-year period were retrieved and reviewed. Information obtained included demography, diagnosis, comorbid conditions, and risk factors for respiratory disease. Results. Three thousand four hundred and ninety patients were admitted into the medical wards with 325 (9.3%) of them diagnosed with a respiratory condition. There were 121 females and 204 males. The average age of the patients was 40.7 ± 14.7 years. Only 7% of the patients smoked cigarette. The commonest respiratory conditions were tuberculosis (66.8%) and pneumonia (24.9%). The commonest comorbidity was HIV infection (39.7%). Tuberculosis/HIV coinfection rate was 50.7%. HIV infection was the single most important predictor of an adverse outcome (OR 5.1, 95% CI 2.05–12.7, ). Conclusion. Infective conditions make up a large percentage of respiratory diseases in low income countries with HIV infection constituting a significant risk factor for a poor disease outcome. 1. Introduction Respiratory complaints such as cough and catarrh are some of the commonest symptoms encountered in medicine. This is due in part to the large surface area; nearly 70?m2 of the lungs present to the atmosphere [1]. The atmosphere that we breathe is more than just “air.” In reality, it is a complex mixture of ambient gases and environmental particulates to which pathogen containing droplets are added when respiratory secretions are coughed or sneezed out by others. Respiratory diseases constitute a major cause of morbidity and mortality worldwide. The top four respiratory diseases, lower respiratory tract infections, chronic obstructive pulmonary disease (COPD), tuberculosis, and lung cancer, are among the ten leading causes of death worldwide [2]. In Africa, lower respiratory tract infection and tuberculosis are ranked 2nd and 8th, respectively [3]. In developed countries, respiratory diseases feature prominently in the top ten causes of morbidity and mortality [4–7]. In Nigeria, lower respiratory tract infections constituted the second leading cause of death in all age brackets in 2002, a year in which TB was the seventh leading cause of death, accounting for 4% of all deaths [8]. In India another developing
Application of Langmuir and Freundlich Models in Phosphate Sorption Studies in Soil of Contrasting Parent Materials in South-Eastern Nigeria  [PDF]
Florence Otobong Umoh, Victor Emmanuel Osodeke, Ini Dennis Edem, Gregory Sunday Effiong
Open Access Library Journal (OALib Journal) , 2014, DOI: 10.4236/oalib.1100989
Abstract: This study was conducted to determine phosphorus sorption characteristics of five soils from contrasting parent materials in south-eastern Nigeria. The soils were collected from Ikom (basalt), Akamkpa (basement complex), Bende (shale), Amaeke (sand stone) and Umudike (coastal plain sand). The standard P requirements for the soils were calibrated from the sorption curves, and the values were very low ranging from 11.1 mg·kg﹣1 in Bende to 60.2 mg·kg﹣1 in Ikom. The P maximum sorption capacity determined by the Freundlich and Langmuir models varied with the locations, and ranged from 65.7 mg·kg﹣1 in Akamkpa to 516 mg·kg﹣1 in Bende for the Freundlich model and from 231 mg·kg﹣1 in Akamkpa to 369 mg·kg﹣1 in Bende for the Langmuir model. Similarly the P maximum buffering capacity was determined by using the two models. The values varied from 993 mg·kg﹣1 in Amaeke to 1180 mg·kg﹣1 in Akamkpa with a mean of 1087 mg·kg﹣1. The highest bonding energy of P was in Akamkpa with a mean value of 6.05 ml/g and lowest was in Bende with a mean value of 0.76 ml/g. From this study, the P sorption data of the soils conformed better with the Freundlich model than the Langmuir model. Freundlich model is therefore recommended for the soils.
Characterization of Candida Species Isolated from Cases of Lower Respiratory Tract Infection among HIV/AIDS Patients in Calabar, Nigeria  [PDF]
Ofonime Mark Ogba, Lydia Nyong Abia-Bassey, James Epoke, Baki Idasa Mandor, Godwin Dickson Iwatt
World Journal of AIDS (WJA) , 2013, DOI: 10.4236/wja.2013.33027
Abstract:

This study was designed to identify and characterize the Candida species isolated from lower respiratory tract infections among HIV positive patients and to determine the prevalence rates of Candida infections among these subjects. Two early morning expectorate sputum samples were collected from 272 HIV positive subjects visiting the ART clinics and DOTS centre with cases of lower respiratory tract infection, over a period of 14 months from May 2009 to July 2010 in Calabar. Subjects were recruited for this study upon approval by the Ethical Research Committee of the University of Calabar Teaching Hospital and obtaining written informed consent from the patients. Samples were processed by standard methods for isolation of Candida. Speciation was done by a germ tube test, chlamydospore production on corn meal agar and sugar fermentation and assimilation tests using the Microexpress Candida identification kit (Tulip, India). Out of the 544 sputum samples collected from 272 subjects, Candida species were isolated from 40 (14.7%) and identified after confirming the growth in the second sample. The majority of Candida species among the Candida isolates were Candida albicans (80%) followed by Candida tropicalis 5 (12.5%), Candida dubliniensis 2 (5.0%) and Candida guilliermondii 1 (2.5%). The isolation rate of Candida species from sputum samples was found to be highest among subjects aged 25 - 34 years, followed by those aged 15 - 24 years.

AWARENESS AND COMPLIANCE OF ANTITETANUS IMMUNZATION AMONG ADULT FEMALES IN A TERTIARY INSTITUTION IN NIGERIA
JO Bamidele, SH Umoh
African Journal of Clinical and Experimental Microbiology , 2004,
Abstract: The purpose of this study was to investigate the awareness level and the compliance to anti-tetanus immunization among adult females in an urban community in South West of Nigeria. The rationale for the study was informed by the fact that high incidence of tetanus infections and deaths are still being reported from our clinics regularly. A total of 394 female workers and students of LAUTECH University and its Teaching Hospital participated in the cross-sectional survey. They were selected using the stratified sampling procedure. A pre-tested structure but open-ended questionnaire was administered on the respondents. The result of the analysis showed a high level of awareness (69. 8%) of anti-tetanus immunization among the respondents and a high significance association was found between the level of awareness and respondent's profession (X= 7. 65; p < 0. 0011). Majority of the respondents (56.1%) took their last dose of anti-tetanus immunization during their last pregnancies. More than one third (37.2%) of the 148 respondents who ever gate birth took only one dose or none during their last pregnancy, thus putting into question the immunological status of those mothers and the children they gave birth to then. It was concluded that despite the high level of awareness among the respondents, compliance was quite low. It is recommended that government should provide logistic supports to make immunization programme accessible on a sustainable basis to everybody in the country. Activities should be put in place that will promote behavioural change in women so that they can go for anti-tetanus immunization. Key Words: Antitetanus immunization, adult females; awareness; Compliance. Afr. J. Clin. Exper. Microbiol. 2004; 5(2): 208 – 216.
Page 1 /4279
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.