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Search Results: 1 - 10 of 452 matches for " Simeon Haile Onu "
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Prevalence of ectoparasite infestations of cattle in Bench Maji zone, southwest Ethiopia
Tesfaheywet Zeryehun Shiferaw,Simeon Haile Onu
Veterinary World , 2013, DOI: 10.5455/vetworld.2013.291-294
Abstract: Aim: This study was conducted with the aim of determining the prevalence and type of ectoparasitic fauna and associated host-related risk factors in cattle in Bench Maji Zone, Southwestern, Ethiopia, from October 2011 to April 2012. Materials and Methods: A total of 212 cattle (84 male and 128 female) were sampled and examined. Both physical examination and laboratory investigation were employed in the study. Results: The study revealed that cattle in the study area were infested with single (24.5%) and multiple (2.8%) ectoparasites with an overall prevalence of 27.3% (58/212). Overall seven species of ectoparasites which belong to tick (16.0%), lice (10.4%) and mite (0.9%), were identified. Seven species of ticks which belong to three genera (Boophilus sp., Amblyoma sp., and Rhipicephalus sp.) were identified. Among the species of ticks Boophilus decoloratus (8.0%), Amblyoma variegatum (4.7%) and Amblyoma coherens (4.2%) were the dominant ones in a decreasing order. Among the three species of lice, the most prevalent was Linognathus vituli (4.7%) followed by Haematopinus euysternus (3.8%) and Damalina bovis (1.9%). Psoroptes bovis (0.9%) was the only mite species recorded in this study. For all ectoparasites there was no statistical deference (p>0.05) between the prevalence of any of the ectoparaisite infestation with regard to sex, age and body condition score. Conclusion: The present study revealed a high prevalence and diverse fauna of ectoparasites that could potentially hamper the productivity of cattle in the study area, hence serious attention is warranted. [Vet World 2013; 6(6.000): 291-294]
Credit Risk Management: An Examination on the Basis of Exposures with Risk Weighting in Greek Banks  [PDF]
Simeon Karafolas
Journal of Financial Risk Management (JFRM) , 2017, DOI: 10.4236/jfrm.2017.62009
Abstract: Bank’s exposure values are classified by categories on the basis of the borrower or the kind of credit. On every credit a risk weight is applied depending on the risk of the exposure value. The exposure value multiplied by risk weight determines the weighted asset of the bank. This amount determines the regulatory capital a bank needs since the total capital ratio of a bank is defined as the ratio of regulatory capital over the weighted asset. The paper examines the evolution and structure of the exposure values considering the risk weighting of the systemic Greek banks during the crisis period. Due to mergers and acquisitions, these banks cover more than 98% of the Greek banking market by the end of 2016. The paper offers an analysis on a consolidated basis but also through a comparative analysis investigates similarities and differences existing within those banks and during the crisis period. Thus the paper can conclude on the policy followed by banks during the crisis period.
Competency Improvement Needs of Farmers in Soil Erosion Prevention and Control for Enhancing Crop Production: Case Study of Kogi State, Nigeria  [PDF]
F. M. Onu, Abu Mohammed
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.511103
Abstract: This study investigated the competency improvement needs of farmers in soil erosion prevention and control for enhancing crop production in Kogi state of Nigeria and was carried out between January and June, 2014. The study adopted descriptive survey research design and was guided by two research questions. The study found out that farmers needed improvement on 37 cultural practices as follows: 10 competencies in mulching, 12 in cover cropping, 8 in strip cropping, 7 in contour farming and 45 mechanical field practice as follows: 10 competencies in contour bonding, 11 in terracing, 12 in channeling and 11 in tunneling for success in soil erosion prevention and control. The study recommended the organization of rural based programmes for the training of farmers in the practice identified to enhance their competencies in soil erosion prevention and control for increased crop production.
Simulations of Nitrate Leaching from Sugarcane Farm in Metahara, Ethiopia, Using the LEACHN Model  [PDF]
Haile Arefayne Shishaye
Journal of Water Resource and Protection (JWARP) , 2015, DOI: 10.4236/jwarp.2015.78055
Abstract: Metahara is the largest sugarcane farm in Ethiopia. It produces around 120,000 tons of sugar per year. The farm has been facing some problems such as salinity and sodicity, which has been studied by different experts for several decades. However, the other universal problem of agricultural farms is nitrate leaching loss, which has never been studied in the site, owing to lack of resources and expertise. The amount of nitrate leaching from agricultural farms can be measured directly from drainage rates or estimated by using numerical models. Measurements of drainage flow can be done by using lysimeters, but normally it can be estimated from water balance calculations or from field measurements of hydraulic gradients and hydraulic conductivities. However, in reality, hydraulic conductivity is highly variable and measurements in the field can be very laborious. Moreover, predicting nitrate leaching losses by using numerical models from such data- poor study area is also another problem. Nevertheless, groundwater nitrate concentration of the farm is measured by using the UV screening and distillation methods. Using the experimental results as an input for the model calibration, the amount of nitrate leaching from the farm is predicted for a 47 years of simulation period using the LEACHN model. In this case, both the measured and predicted values of nitrate leaching losses show that there is no nitrate problem in the site. However, even though the likelihood of detecting nitrate contamination in the study area is low, potential anthropogenic nitrogen sources must be carefully managed, for it is better to be safe than regretful.
Type B triorchidism in an adult indigenous fowl (Gallus gallus domesticus) in Sokoto, Nigeria- Case report
JE Onu
Sokoto Journal of Veterinary Sciences , 2012,
Abstract: This paper presents a possible first case of triorchidism in an indigenous fowl in Sokoto, northwest Nigeria. Triorchidism is an exceptionally rare congenital abnormality which has been observed in other wild birds which could be ascribed to faulty embryological development with developmental cause that are distinct from testicular asymmetry. During a comparative investigation of the reproductive tract of cock (gallus gallus domesticus) drake (Anas platyrynchos) and guinea fowl (numida meleagris) in Sokoto and her environs, three testes were observed in a cock following abdominal laparatomy. The third testis which was smaller when compared with the right and left testes was attached to the proximal end of the right testes with which it shared the same epididymis. The right, left and third testes weighed 7.40, 7.20 and 2.10gm respectively while the length of the right, left and third testes were 3.60, 3.40 and 1.40cm respectively. When the three testes were cut open, similar whitish fluid oozed out. The causes and implications of this anomaly are suggested.
Type B triorchidism in an adult indigenous fowl (Gallus gallus domesticus) in Sokoto, Nigeria- Case report
JE Onu
Sokoto Journal of Veterinary Sciences , 2012,
Abstract: This paper presents a possible first case of triorchidism in an indigenous fowl in Sokoto, northwest Nigeria. Triorchidism is an exceptionally rare congenital abnormality which has been observed in other wild birds which could be ascribed to faulty embryological development with developmental cause that are distinct from testicular asymmetry. During a comparative investigation of the reproductive tract of cock (gallus gallus domesticus) drake (Anas platyrynchos) and guinea fowl (numida meleagris) in Sokoto and her environs, three testes were observed in a cock following abdominal laparatomy. The third testis which was smaller when compared with the right and left testes was attached to the proximal end of the right testes with which it shared the same epididymis. The right, left and third testes weighed 7.40, 7.20 and 2.10gm respectively while the length of the right, left and third testes were 3.60, 3.40 and 1.40cm respectively. When the three testes were cut open, similar whitish fluid oozed out. The causes and implications of this anomaly are suggested.
Application of Six Thinking Hats with the Theme Profession of Sociologist”. Transcript of the Sequence of Green Hat
Gheorghe Onu
Bulletin of the Transilvania University of Bra?ov. Series VII : Social Sciences and Law , 2009,
Abstract: The study is the transcription of the sequence of green hat from the application of the creative technique Six Thinking Hats (Edward de Bono’s creation) that I did at the workshop with the theme Profession of Sociologist”, of the international colloquium of social sciences ACUM 2008. The colloquium ACUM is the most important of the scientific manifestations organized by the Faculty of Law and Sociology of Transilvania” University of Bra ov.
On-farm storage studies on sorghum and chickpea in Eritrea
A Haile
African Journal of Biotechnology , 2006,
Abstract: On-farm storage studies were conducted in Teraemini, Ashera and Hamelmalo sub-zones in Eritrea during 2004/2005, with the objective of finding the damages caused by storage pests under farmers’ situations. The studies were conducted on chickpea and sorghum and the treatments used were sand, small grain (taff, Eragrostis tef), vegetable oil and chemical (Malathox 1%). Data were collected every month on the number of eggs, number of holes, grain damage, weight loss and germination of the grains. The major storage pests observed during the studies were bruchids (Callosobruchus chinensis L.) on chickpea. Sorghum was attacked in storage by Angoumois grain moth (Sitotroga cerealella), weevils (Sitophilus spp), confused flour beetles (Tribolium spp), saw toothed grain beetles and mites. The populations of these pests were very low in the first three months. However, after three months of storage the population of the pests in all grains and locations increased very fast and caused high damage. The highest grain damages were recorded in the untreated control (check), sand and taff treatments. The weight loss for sorghum and chickpea in the untreated control (check) were 9.17 and 27.51%, respectively. Ash, oil and chemical treatments significantly lowered grain damage and weight loss in all the studies and locations. Ash and edible oils-treated grains had low or no storage pest problems in all the study sites
Analytic solutions of n-th order differential equations at a singular point
Brian Haile
Electronic Journal of Differential Equations , 2002,
Abstract: Necessary and sufficient conditions are be given for the existence of analytic solutions of the nonhomogeneous n-th order differential equation at a singular point. Let $L$ be a linear differential operator with coefficients analytic at zero. If $L^*$ denotes the operator conjugate to $L$, then we will show that the dimension of the kernel of $L$ is equal to the dimension of the kernel of $L^*$. Certain representation theorems from functional analysis will be used to describe the space of linear functionals that contain the kernel of $L^*$. These results will be used to derive a form of the Fredholm Alternative that will establish a link between the solvability of $Ly = g$ at a singular point and the kernel of $L^*$. The relationship between the roots of the indicial equation associated with $Ly=0$ and the kernel of $L^*$ will allow us to show that the kernel of $L^*$ is spanned by a set of polynomials.
A second eigenvalue bound for the Dirichlet Schrodinger equation wtih a radially symmetric potential
Craig Haile
Electronic Journal of Differential Equations , 2000,
Abstract: We study the time-independent Schrodinger equation with radially symmetric potential $k|x|^alpha$, $k ge 0$, $k in mathbb{R}, alpha ge 2$ on a bounded domain $Omega$ in $mathbb{R}^n$, $(n ge 2)$ with Dirichlet boundary conditions. In particular, we compare the eigenvalue $lambda_2(Omega)$ of the operator $-Delta + k |x|^alpha $ on $Omega$ with the eigenvalue $lambda_2(S_1)$ of the same operator $-Delta +kr^alpha$ on a ball $S_1$, where $S_1$ has radius such that the first eigenvalues are the same ($lambda_1(Omega) = lambda_1(S_1)$). The main result is to show $lambda_2(Omega) le lambda_2(S_1)$. We also give an extension of the main result to the case of a more general elliptic eigenvalue problem on a bounded domain $Omega$ with Dirichlet boundary conditions.
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