oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 83 )

2019 ( 344 )

2018 ( 337 )

2017 ( 346 )

Custom range...

Search Results: 1 - 10 of 200491 matches for " Clara N. Kwanashie "
All listed articles are free for downloading (OA Articles)
Page 1 /200491
Display every page Item
Evidence of Cryptococcosis in cattle in Zaria Kaduna state, Nigeria
Emmanuella N. Akange,Clara N Kwanashie,Mohammed Bisalla,Nicodemus M Useh
Veterinary World , 2013, DOI: 10.5455/vetworld.2013.64-67
Abstract: Aim: Cryptococcosis is azoonotic infection caused by fungal of the Cryptococcus neoformans complex comprising of C. neoformans and C. gattii.The disease affects humans and animals worldwide causing morbidity and mortality. This work was carried out to determine the occurrence of cryptococcal antigens and factors associated with presence of antigens in cattle in Zaria, Nigeria. Materials and Methods: Three hundred and ninety (390) serum samples from cattle of various ages were collected from 11 farms in Zaria, Nigeria. The samples were analysed using alatex agglutination test and lateral flow assay kit which detectsthe polysaccharide capsular antigens of Cryptococcus species. Results:Out of the 390 samples tested 28 (7.17%) were found to be positive using the latex agglutination test while only of these 22 (5.64%) were positive using the lateral flow assay. There was a strong correlation (r=0.939, p=0.0002) between the results of the latex agglutination test and the lateral flow assay. There was no statistically significant difference (p>0.005) in positivity for cryptococcal antigens between sex, age and sex, though, there was a statistically significant difference (p<0.05) in positivity between management systems i.e. semi-intensive and intensive farming systems. Conclusions: The epidemiological value of this report lies in its demonstration that the risk of cattle and humans infection with cryptococcosis exist in farms in Zaria. The presence of this pathogen among these cattle poses an economic threat to the livestock industry due to the mastitis it causes. It also poses a significant public health threat because of its zoonotic nature and the increasing population of immunocompromised individuals. Large scale studies to determine specific risk factors and the role of the environment and experimental studies to determine what governs the transition from nasal colonisation to infection are recommended. [Vet World 2013; 6(2.000): 64-67]
Trial of Aspergillus fumigatus Vaccine in Broiler Chicks
Clara N. Kwanashie,Jarlath U. Umoh,Haruna M. Kazeem,Paul A. Abdu
Research Journal of Animal Sciences , 2012, DOI: 10.3923/rjnasci.2012.72.75
Abstract: There is a scarcity of information on the effect of vaccine against aspergillosis in Zaria and Kaduna areas. Thus, this study was conducted to determine the efficacy of an Aspergillus fumigatus germling vaccine. The methodologies used in this study included Aspergillus spore production, determination of LD50, preparation of the germling vaccine and testing the efficacy on broiler chicks. Three groups of 4 days old broilers were exposed to 4.2-5.8x108 cfu g-1 lung tissue of A. fumigatus. The calculated amount of A. fumigatus that killed 50% of the broilers was 5.8x107.4. A. fumigatus was recovered 4 weeks post exposure. A germling vaccine of A. fumigatus was administered to 4 days old broilers using the ocular route. The trial vaccine showed 40% protection when administered to chicks 2 weeks prior to challenge with A. fumigatus spores. It is recommended that levels of A. fumigatus spores should not rise to 5.8x107.4 cfu g-1 lung tissue in poultry houses. Adjuvants can be added to the vaccine to raise the level of protection using different routes of administration and vaccinating at an older age.
Occurrence of Aspergillus Species among Apparently Healthy Chickens in Poulty Farms in Kaduna State, Nigeria
Clara N. Kwanashie,Paul A. Abdu,Haruna M. Kazeem,Jarlath U. Umoh
Research Journal of Animal Sciences , 2012, DOI: 10.3923/rjnasci.2012.76.78
Abstract: The study was conducted to determine the occurrence of Aspergilllus species among apparently healthy birds in poultry farms. Trachea swabs were collected from a total of 1500 birds in 52 commercial (10% of birds in each poultry farm visited) poultry farms were sampled. Aspergillus sp. was isolated from 718 (47.87%) of the birds. Six species of Aspergillus were isolated viz: A. fumigatus made up 52.37% (376) of the Aspergillus isolates followed by A. flavus 21.87% (157), A. niger 11.42% (82), A. terreus 8.64% (62), A. restrictus 2.79% (20) and A. ochraceous 2.92% (21). Aspergillus species were isolated throughout the year though with a higher incidence during the rainy season compared to the dry season.
Serological prevalence of leptospirosis in cattle slaughtered in the Zango abattoir in Zaria, Kaduna State, Nigeria
Emmanuel O. Ngbede,Mashood A. Raji,Clara N. Kwanashie,Emmanuel C. Okolocha
Veterinaria Italiana , 2012,
Abstract: Leptospirosis is an occupational zoonosis caused by pathogenic leptospires. In this study, the presence and prevalence of antibodies specific to Leptospira spp. serovar Hardjo in 142 cattle slaughtered between June and July 2011 was investigated using the enzyme-linked immunosorbent assay (ELISA). Five (3.50%) of the 142 cattle sampled were seropositive for antibodies to Leptospira spp. serovar Hardjo. Despite the fact that there was no significant difference (p>0.05) in seropositivity between sexes and between breeds sampled, there was a significant difference (p<0.05) in sero-positivity between the different age groups examined. Leptospirosis is present in cattle slaughtered in the Zango abattoir; butchers and abattoir workers are exposed to infected animals and are at risk of being infected by Leptospira spp. serovar Hardjo.
ALTERNATIVE ASSESSMENT: EMERGING TRENDS OF CLASSROOM ASSESSMENT IN DIGITAL ERA
Clara N. Olele
Academic Research International , 2012,
Abstract: The paper focused on the use of performance assessment for assessing learners in terms of using acquired knowledge and skills in creative and innovative ways. The benefits and major issues in the use of performance assessment were highlighted. The paper also discussed the process and guideline for the use of performance assessment as tools for teaching and learning. The principles that emanates from two theories of learning supporting the use of performance assessment were highlighted as well. The implications of the use of performance assessment were drawn, and some suggestions also made.
Evaluation of Sorghum bicolor leaf base extract for gastrointestinal effects
FC Nwinyi, HO Kwanashie
African Journal of Biotechnology , 2009,
Abstract: The leaf base of Sorghum bicolor (Family: Gramineae, Poaceae) was cold-macerated with 70% v/v methanol. The aqueous methanolic extract was further fractionated into non-polar, medium polar and very polar components using hexane, ethylacetate and water (aqueous), respectively. The gastrointestinal effects of these extracts were tested on intestinal motility (transit) in mice, castor oilinduced diarrhoeal model in rats, isolated rabbit jejunum, guinea pig ileum and rat stomach fundus strip. The oral and intraperitoneal LD50 values for the extracts were determined in mice and rats. The aqueous methanolic extract (100 – 400 mg/kg i.p) significantly (P < 0.05) and dose-dependently decreased the intestinal motility, inhibited castor oil-induced diarrhoea, produced concentrationdependent relaxation of rabbit jejunum with half maximal effective concentration (EC50) of 0.21 mg/ml. This extract also produced both non-myogenic and slight relaxation effects on guinea pig ileum and a contraction on rat stomach fundus strips. Both aqueous and ethylacetate fractions also reduced intestinal motility. However, ethylacetate fraction caused greater reduction than the aqueous fraction. The oral LD50 value for the aqueous methanolic extact in both rats and mice was found to be 2000 mg/kg while the intraperitoneal values are 1414.2 mg/kg in rats and 1341.6 mg/kg in mice. The intrapertoneal value for both aqueous and ethylacetate fractions is 2000 mg/kg in mice. The study provided scientific bases for the traditional use of S. bicolor for treatment of gastrointestinal related problems such as diarrhoea.
?La casa dividida?: Dinámica de los procesos de construcción de identidades nacionales en Estados Unidos
Nú?ez Regueiro,M. Clara;
Andes , 2008,
Abstract: this article rejects the notion of national identity as a fixed concept. instead, it assumes all collective identities as palimpsestic processes. in the nineteenth-century united states, population control, commercial, and nation-planning projects constituted important stimuli for the formation of these identities. alongside the design of the nation's legislation, economy, power distribution, and place in the world market, the creation of a national identity became paramount. territorial expansion, urbanization, immigration, indian removal, civil wars, slave emancipation, and subversion to patriarchy, fluidly intertwined thus creating and constantly reshaping, national, regional, gender, and ethnic identities. as a result of these exchanges, different groups built national experiences and memories in diverse ways. sometimes communities were stripped of any national feeling and adopted a new nation with relative agility. others reinforced ties that allowed them to maintain their group identity more or less intact to this day despite their physical removal, the dispersion of the group, or the incorporation of a new national identity. in all cases, these processes were -and remain - negotiated and constantly re-written.
ADDRESSING CHALLENGES OF INFORMATION AND COMMUNICATION TECHNOLOGIES (ICTS) IN TEACHER EDUCATION: - A CASE FOR DEVELOPING NATIONS
Clara N. Olele,Cheta Williams
Academic Research International , 2012,
Abstract: The education sector all over the world is under increasing pressure to use the new information and communication technologies (ICTs) for teaching and learning This is an innovation and no innovation and change in history come without challenges, so ICTs in education is no exception.Cognizant of this obvious fact, the paper presents and analyzes the current definition of educational technology by the Association of Educational Communication and Technology (AECT) which highlights current trends in education focusing on ICTs with implications for teacher education. The paper also presents key principles for effective ICTs integration in teacher education and a review of challenges and enablers of ICTs in education. Both challenges and enablers based on the reviews were rated and offers on implementation options for schools and teachers in the quest to making ICTs integration a huge success through continuing professionaldevelopment for teachers.
El rol de las bibliotecas digitales
López Guzmán, Clara
Técnica Administrativa , 2001,
Abstract: Descripción del rol de las bibliotecas digitales
La exploración y ocupación del Acre (1850-1900)
López Beltrán, Clara
Revista de Indias , 2001,
Abstract: Between 1850 and 1900, the Acre Region suffered an intense exploration and forestry processes, because of the fast growing of the rubber market. The great size of the activity and the enormous geographical distance convinced the government the necessity to capture those territories under the State control. This article shows the process under the Bolivian perspective. Entre 1850 y 1900 hay un proceso cada vez más rápido de exploración y asentamiento en la región del Acre como consecuencia de la rápida expansión de la explotación de goma elástica, producto abundante en la zona. La magnitud del fenómeno y el abandono de esas alejadas tierras preocupó al gobierno que vio la inminente necesidad de incorporar esos territorios al control estatal. Para ejemplificar el proceso de nacionalización del territorio, se analizará el proceso desde la perspectiva boliviana.
Page 1 /200491
Display every page Item


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