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Search Results: 1 - 10 of 462134 matches for " Akpan A. Otu "
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Preliminary Geophysical Investigation to Delineate the Groundwater Conductive Zones in the Coastal Region of Akwa Ibom State, Southern Nigeria, around the Gulf of Guinea  [PDF]
George N. Jimmy, Akpan A. Otu, Umoh A. Asuquo
International Journal of Geosciences (IJG) , 2013, DOI: 10.4236/ijg.2013.41011
Abstract:

This paper presents the first work of its kind within the confines of the study area. It unravels the distribution of the layers of conductive sand and their depths of interaction between freshwater from fresh sands and saltwater within the conductive layers in the coastal region of Akwa Ibom State (Nigeria) around the Gulf of Guinea. Vertical electrical sounding (VES) data whose fidelity was achieved by constraining the data by the available nearby logged borehole information during interpretation was the method applied. In the western region of the study area, the ferruginized and saline water layer is found within the depth range of 22 to 75 m deep. In the northern zone, conductive sandy layer is found within 50 to 210 m and in the eastern zone, the saline and ferruginized sandy layer is found within the depth of 88.5 m and above. Generally, the horizontal and vertical cross sections of the subsoil and the flow regime from water table depths have been delineated. With these information, water can be tapped in the area with caution and the flow direction determined can be used as input parameter in detailed contamination study.

Cutaneous Infections in Patients Presenting in a Skin Clinic in the Tropics
Olayinka A. Olasode,A.A. Otu,E.B. Henshaw,N.A. Akpan
International Journal of Tropical Medicine , 2012,
Abstract: Cutaneous infections in the tropics continue to be of importance because of the presence of a climate that supports the agents of transmission. Poor social and environmental conditions are also contributory to the spread of infection in the developing world. Lack of basic infrastructure and amenities like good water supply has a significant impact on transmission of infective dermatoses. Eighty two consecutive patients with infective dermatoses presenting at a skin clinic in a developing country in the tropics over a 9 months period were compiled and analyzed in a prospective, descriptive study. The diagnosis were made by a dermatologist and confirmed by microbiology where necessary. The ages of affected ranged between 1-69 years with male to female ratio of 1:1.6. The peak age affected was 20-29 years of age. Fungal infections was highest with 55 (67%) patients affected followed by parasitic with 10 (12%) patients affected. Viral non exanthematic skin disease occurred in 9 (11%) patients while, bacterial infections was documented in 8 (10%) of patients. The pattern of infective dermatoses was found to still follow the same pattern as in previous documented studies. It is logical to conclude that the same environmental and social conditions supporting the spread of infection and parasitic infestations in these environments has not been grossly changed. Cutaneous infections in the developing world continue to be a of public health importance. New measures to provide and sustain effective basic amenities with social facilities for better quality of life are suggested.
Cutaneous Infections in Patients Presenting in a Skin Clinic in the Tropics
Olayinka A. Olasode,E.B. Henshaw,N.A. Akpan,A.A. Otu
International Journal of Tropical Medicine , 2012, DOI: 10.3923/ijtmed.2010.54.57
Abstract: Cutaneous infections in the tropics continue to be of importance because of the presence of a climate that supports the agents of transmission. Poor social and environmental conditions are also contributory to the spread of infection in the developing world. Lack of basic infrastructure and amenities like good water supply has a significant impact on transmission of infective dermatoses. About 82 consecutive patients with infective dermatoses presenting at a skin clinic in a developing country in the tropics over a 9 months period were compiled and analyzed in a prospective, descriptive study. The diagnosis were made by a dermatologist and confirmed by microbiology where necessary. The ages of affected ranged between 1-69 years with male to female ratio of 1:1.6. The peak age affected was 20-29 years of age. Fungal infections was highest with 55 (67%) patients affected followed by parasitic with 10 (12%) patients affected. Viral non exanthematic skin disease occurred in 9 (11%) patients while bacterial infections was documented in 8 (10%) of patients. The pattern of infective dermatoses was found to still follow the same pattern as in previous documented studies. It is logical to conclude that the same environmental and social conditions supporting the spread of infection and parasitic infestations in these environments has not been grossly changed. Cutaneous infections in the developing world continue to be a of public health importance. New measures to provide and sustain effective basic amenities with social facilities for better quality of life are suggested.
Determination of Molecular Mass of Strong Acids by Differential Temperature Model (DTM) Using H3PO4 and HBF4 for Classical Demonstration  [PDF]
I. A. Akpan
Journal of Materials Science and Chemical Engineering (MSCE) , 2015, DOI: 10.4236/msce.2015.36007
Abstract:

A new chemical hypothesis based on the differential temperature model (DTM) for estimation of molecular masses of some strong acids (H2SO4, HNO3 and HCl) in solutions have previously been propounded and tested theoretically and analytically by the author. The results were published in the Bulletin of Pure and Applied Sciences–Chemistry in 2012. The changes in temperature following various dilutions of the acids were found to be proportional to their molecular properties. The new chemical hypothesis and model is hereby tested on H3PO4 and HBF4 and their exact molecular masses have been evaluated analytically and theoretically. The validity of the hypothesis and the model is hereby presented for chemical proof and adoption to theory by chemists.

A Study of Ischiopubic Index Using X-Ray Films in Lagos State of Nigeria
Theresa B. Ekanem,Ekaette J. Akpan,Otu E. Mesembe
Advances in Anatomy , 2014, DOI: 10.1155/2014/192897
Abstract: The ischiopubic index was studied in adult pelvic X-ray films of subjects aged eighteen to seventy years. A total of 120 X-ray films made of 60 males and 60 females were collected from LUTH, Lagos State. The ischiopubic index was calculated by dividing the pubic length by ischial length and by multiplying by 100. The mean ischiopubic index for males was 101.05 ± 16.65 and that of the females was 115.99 ± 18.5. Sex differences of these indices were statistically significant () for both sexes. The mean length of the females pubis was significantly longer than that for males (), and similarly the mean length of ischium in males was significantly longer than that of the females (). Using X-ray films, sex could be assigned using demarking points to 47% and 50% females in Lagos State. In conclusion, this research has provided evidence that the ischiopubic index and the demarking points are reliable in sexing the hip bones of Nigerians (using X-ray films). Thus the ischiopubic index may be of value in forensic and archaeological analyses and in solving medicolegal cases. 1. Introduction The innominate bone has long been recognised as one of the best skeletal indicators of sex in an adult individual. Methods have been developed which provide criteria for sex determination of adults using features of the innominate bone [1, 2]. Various studies have shown extensively that the hip bone is an ideal bone for sex determination because it reflects not only the general differences between the sexes but also the special adaptation of the female hip bone for child bearing [3–5]. lbone of females was much longer than those of the males. This has been confirmed in adult black Malawians [5]. In the past many workers have evolved various metrical parameters and indices for sexing of the hip bone of which one of them is the ischiopubic index. This index was used efficiently where the pubic was separated and could determine sex in a high percentage of bones. The ischiopubic index is useful in sex differentiation [2]. It is obtained by dividing the length of pubis by the length of the ischium. This index is one of the determining factors of the size of the pelvic inlet and is significantly higher in females than in males [4]. The results obtained will contribute to comparative data base for Nigerians [6] as well as compare those of other races. 2. Materials and Methods A total of 120 radiographs of the anterior-posterior view of the pelvis were collected comprising 60 males and 60 females. All the radiographs were collected from the University of Lagos Teaching Hospital (LUTH),
Sexual behaviour, contraceptive practice and reproductive health outcomes among Nigerian university students
CL Ejembi, A Otu
Journal of Community Medicine and Primary Health Care , 2004,
Abstract: Context: The continued poor reproductive health behaviour and outcomes among youths informed the investigation of the knowledge, attitudes, sexual behaviour, outcomes and care-seeking among university students in Zaria, north western Nigeria. Methods: Using a cross-sectional descriptive study design, self-administered structured questionnaires were administered to a sample of 400 undergraduate students of Ahmadu Bello University students drawn by multi-staged sampling to collect information on their reproductive health knowledge and behaviour. Findings: Knowledge of most aspects of reproductive health was high. However, gaps where found in some specific areas. Apart from ethnicity and faculty of study, no significant associations were found between knowledge and other demographic variables. Attitudes to reproductive health were generally negative. Overall, 64.1% of the respondents had had sexual intercourse; 65.4% of the males and 60.2% of the females students sexually experienced. The mean age at sexual exposure for females and males were 17.8 and 19.2 years, respectively. The mean number of lifetime sexual partners was 3.4 for males and 2.4 for the females. Of the 54.7% currently sexually active respondents, 53.5% of the males and 48.0% of the females were involved in multiple sexual relationships. Only 32.4% of the sexually exposed respondents had ever used or were currently using a method of contraception. Condom use was only 30% among the sexually active respondents with use higher among the males; however, the use was inconsistent. Use of effective contraceptives was very low. Overall, 23.3% of the respondents had experienced symptoms suggestive of sexually transmitted infections within six months preceding the study, and self medication was the predominant method of treatment. Utilization of the university health services for their reproductive health needs was found to be abysmally low. Conclusion: The gaps in reproductive health knowledge, negative attitudes, high prevalence of risky sexual activity and poor reproductive health care seeking behaviour call for mounting of educational intervention programmes and development of youth-friendly reproductive health services on campus. KEY WORDS: University students; Reproductive health knowledge; Sexual behaviour; Contraceptive use; Reproductive health outcomes Journal of Community Medicine & Primary Health Care Vol.16(2) 2004: 8-16
Physicochemical Characteristics, Degradation Rate and Vulnerability Potential of Obudu Cattle Ranch Soils in Southeast Nigeria  [PDF]
A. U. Akpan-Idiok, K. I. Ofem
Open Journal of Soil Science (OJSS) , 2014, DOI: 10.4236/ojss.2014.42008
Abstract:

Obudu Cattle Ranch covers an area of 2400 hactares at an altitude of 900 - 1500 m above mean sea level and is suitable for cultivation of cucumber (Cucumis sativus), tomato (Solanum lycopersicum), Irish potato (Solanum tuberosum), spinach (Spinacia oleracea) cabbage (Brassica oleracea), lettuce (Lactuca sativa) because of its semitemperate climate. Physicochemical characteristics, degradation rates and vulnerability potential of the soils were studied. Eighteen composite soil samples (0 - 15 and 15 - 30 cm) were collected at interval of 500 m along North-South and East-West transects in nine locations. The soils were characterized as follows: texture of sandy loam for the surface and subsurface soils; pH(H2O) (4.7 - 5.7), organic carbon (4.9 - 74.8 gkg-1), total nitrogen (0.2 - 4.8 gkg-1), carbon-nitrogen ratio (14 - 25), available P (6.66 - 107.89 mgkg-1), effective cation exchange capacity (ECEC) (5.58 - 14.62 cmol·kg-1) and base saturation (49.37% - 85.28%); the surface soils were generally higher in organic carbon, total nitrogen, available P and ECEC than the subsurface. The Soil Degradation Rate (SDR)/ Vulnerability Potential (Vp) weighted values of texture (3/3), soil pH(H2O) (4/2), organic carbon (1/5) and base saturation (2/4) showed moderate to low susceptibility of the soils to degradation or vulnerability. The soils could be managed by liming, practicing crop rotation and using soil conservative measures.

ANALYSIS OF THE VERTICAL PROFILES OF HUMIDITY FROM RADIOSONDE SOUNDINGS LAUNCHED FROM ANTOFAGASTA
A. C. Otu00E1rola
Revista mexicana de astronomía y astrofísica , 2011,
Abstract: La región del Desierto de Atacama en el norte de Chile alberga algunos de los más recientes observatorios astronómicos, equipados con instrumentos que cubren varias bandas espectrales de interés, incluyendo: microondas, milimétrica, sub-milimétrica, infrarrojo medio, infrarrojo cercano y visible. Entre otros, la región hospeda al Very Large Telescope (VLT) ubicado en Cerro Paranal, al Gran Arreglo Milimétrico de Atacama (ALMA), actualmente en construcci′on en el LLano de Chajnantor en la ladera occidental de la cordillera de Los Andes, y ha sido la región seleccionada para la instalación del Telescopio Europeo Extremadamente Grande (E-ELT). Debido al rol del vapor de agua atmosférico como una fuente de absorción de radiación en varias bandas espectrales, además de introducir fluctuaciones de fase en el frente de onda detectado por interferómetros tal como ALMA, hace del estudio de vapor de agua atmosférico un tema relevante en esta región. Este trabajo presenta un análisis de los perfiles verticales de humedad obtenidos por medio de radiosondas lanzadas desde las cercanías de la ciudad de Antofagasta, y se focaliza en la magnitud del sesgo seco en los perfiles de humedad relativa que se origina en un cambio de temperatura de los sensores de humedad relativa, respecto al ambiente circundante, producido por radiación solar directa sobre los sensores.
Can a Good Performance Management Technique Improve Public Health Outcome? A Rapid Assessment of Public Health Organization in Nigeria  [PDF]
David Akpan
Journal of Human Resource and Sustainability Studies (JHRSS) , 2019, DOI: 10.4236/jhrss.2019.72009
Abstract: Performance management practice dates back as one of the critical parts of the human resource management process of any organization which is expected to help the organization make policy level decisions, and program direction and improve to organizational learning. A few organizations have made an attempt to institute a performance management system to assist with assessing work productivity, with findings not used to compare with agreed goal of the organization. Relatively, if the focus of the organization is to deliver public health outcomes, how is performance management a significant step to help the organization shapes its workforce productivity towards achieving on its public health outcomes? What system is in place to enable the performance management process to have a direct impact on public health outcome? This work intends to determine the capacity of public health organizations performance management system in driving work productivity leading to achievement of established public health outcome. A quantitative assessment was conducted using a Performance Management Self-Assessment Tool (PMSAT) developed by Turning Point Performance Management National Excellence Collaborative in 2004 and data collected were analyzed using a statistical tool. The results of the findings revealed a high-level commitment from the leadership, alignment of performance priority areas to the Agency’s mission and the ability of the performance system to measure key areas like health status of personnel, human resource development, financial systems and management practices. However, the current system lacks the capacity to develop its Information and Data System to provide timely reports on performance outcome as well as providing feedback for program and management decision and relationship with clients and stakeholders. In conclusion, it is important to mention that performance management is more than just a process for rewarding employee’s productivity but a tool that helps organizations measure their overall performance based on its employee’s efforts.
Study of Electrolyte Changes in Patients with Prolonged Labour in Ikot Ekpene, a Rural Community in Niger Delta Region of Nigeria
E. I. Ekanem,A. Umoiyoho,A. Inyang-Otu
ISRN Obstetrics and Gynecology , 2012, DOI: 10.5402/2012/430265
Abstract:
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