556 research outputs found
Pathogenicity of Mycoplasma agalactiae subsp. bovis in goat mammary gland
No full textClinical mastitis developed in three goats after inoculation into the mammary gland with 105 colony-forming units (cfu)/ml of a local strain of M. agalactiae subsp. bovis. The infection was characterized by pyrexia, reduction in milk yield and acute purulent inflammation of the lactiferous sinus and ducts, necrosis of the duct epithelium and, by the fifth day, early proliferation of chronic inflammatory cells in the parenchyma..RE: 9 ref.; SC: ZA; CA; VE; BE; 0I; 0V; 0DSource type: Electronic(1) http://upei-resolver.asin-risa.ca?sid=SP:CABI&id=pmid:&id=&issn=0378-1135&isbn=&volume=1&issue=1&spage=19&pages=19-22&date=1976&title=Veterinary%20Microbiology&atitle=Pathogenicity%20of%20Mycoplasma%20agalactiae%20subsp.%20bovis%20in%20goat%20mammary%20gland.&aulast=Ojo&pid=%3Cauthor%3EOjo%2c%20M%20O%3bIkede%2c%20B%20O%3C%2Fauthor%3E%3CAN%3E19772295088%3C%2FAN%3E%3CDT%3EJournal%20article%3C%2FDT%3
El ojo de Leo Matiz. El Financiero, sección Cultura "Clicks a la distancia"
No full textReferencias bibliográficas:Leo Matiz, el lente mágico Los hombres del campoEl tercer ojo de Leo MatizNota sobre la exposición Ojo divino, recopilación de la obra del fotógrafo Leo Matiz en la Biblioteca México
The impact of recapitalization and development program on the performance of land reform farmers in the province of KwaZulu-Natal.
No full textMasters Degree. University of KwaZulu-Natal, Pietermaritzburg.Land reform is and has been one of the South African development initiatives. The desire to
see agriculture as the core of the transformation for the previously disadvantaged citizens and
as a vehicle for improving the socio-economic status and rural economy cannot be ignored.
Research on land settlement operation across countries that have experienced land reform
indicates that land reform without post-settlement support regardless of the historical
background of the proposed beneficiaries or even political appraisal leads to the neglect of the
awarded land. The presence of effective farmer support services promotes the development of
the land reform farms whilst the opposite may contribute negatively to on-farm development
and affect the livelihoods and food security of the people that rely on the farm. There is no
doubt that the current land ownership patterns are unsustainable and are a threat to national
democracy. Therefore, the need to provide appropriate post-settlement support to farmers’
farms cannot be ignored to help the few farmers retain the farms. It is for this reason that the
recapitalization program was initiated.
This study aims to determine the impact of recapitalization and development on the
performance of land reform farmers. The study made use of a quantitative approach and
adopted the multistage sampling techniques: stratified random sampling and random sampling
procedure to select the land reform farmers that participated in the study (n =264). Descriptive
statistics were used to assess the socio-economic status of the land reform beneficiaries.
Econometric analysis was also used through Probit regression analysis to assess the factors
influencing the participation of farmers in the Recapitalization and Development Program
(RADP), and the Endogenous switching regression model to assess the impact of RADP on the
performance of land reform farmers.
The primary findings indicated that respondents are on average 49 years old and that around
80% of the sampled farmers are married. While approximately 64% of farmers engaged in nonfarm
economic activity, the average household has approximately five people. Similarly, the
number of years spent cultivating crops (a proxy for experience) is projected to have a
favourable effect on participation in the RADP and on net farm revenue. Around 70% of
respondents reported having a signed contract. These findings indicated that while 58% had
access to extension services from both the private and public sector contributing to the progress
of agricultural development with 54% of strategic partnership support, and mentorship was
indicated to be 44%. Tax compliance (p=0.022), secondary organization (p=0.0257, legal entity
(p=0.008), farm potential income upon acquisition (p=0.084), farmers getting third-party
support (p=0.071), and strategic partnership (p=0.081) all had a statistically significant effect
on farmers' RADP participation.
The findings indicated that age (p=0.029), farm potential income upon acquisition (p=0.088),
strategic partnership (p=0.049), and tax compliance (p=0.002) were all positively significant
with the impact of RADP on land reform performance. The impact of RADP on the
performance of non-RADP recipients was statistically significant for strategic partnerships
(p=0.059), legal entities (p=0.019), and farmers receiving third party support (p=0.095).
Strategic partnership (p=0.021) and tax compliance (p=0.010) had a statistically significant
effect on RADP beneficiaries' performance.
The results showed that land reform has made a progress in ensuing a positive livelihood of
beneficiaries even though some challenges are still experienced. Findings showed that the
majority of farmers were engaged in off-farm economic activities, access to formal education
and have signed a project contract. Mentorship remained a particularly difficult aspect of postsettlement
life. However, farmers got a chance to enhance their farms and raise their income
through RADP's strategic cooperation. Generally, land reform farmers are full-time farmers
and get their income from farm profits. Access to extension services was satisfactory for land
reform farmers. The strategic partnership of RADP is likely to improve the farm and the farm
income. RADP generally has a positive impact on the performance of the land reform program.
There is a need to significantly improve the mentorship program to increase land reform
farmers' engagement in the given farmer support programs. It is recommended that more
extension services are availed to the land reform farmers
Environmental management of urban farming and water quality: implications for food security.
No full textMasters Degree. University of KwaZulu-Natal, Pietermaritzburg.Urban farming, in its small scale comprises of various production systems and practices that
can lead to poor soil conditions, water pollution and the extension of climate change impacts.
Moreover, smallholder farmers are in turn challenged by climate change impacts including
heavy rainfall, high temperatures, hailstorms and pests exacerbated by the lack of knowledge,
institutional support, governance framework, limited financial resources and technology. As a
result, farmers are vulnerable to urban farming and environmental risks that affect the farmers’
food and nutrition security. On the other hand, if done well, urban farming (UF) can benefit the
urban environment through flood water mitigation, water infiltration and greening of the
environment, while improving food security. The study was conducted in the communities of
Sobantu, Sweetwaters and Mpophomeni, in KwaZulu-Natal. This study employed a mixedmethods
research approach, which combines quantitative and qualitative analysis. The
quantitative approach used a survey questionnaire to elicit responses from 78 urban and
periurban smallholder farmers who were purposefully selected to participate in the study. Focus
group discussions and field observations were used to collect in-depth qualitative data about
the challenges urban farmers faced in urban farming. Additionally, the logit regression model
was used to identify factors that influence the farmers adoption of urban farming management
practices. The study revealed that the majority of the farmers were faced with environmental
problems including poor soil conditions, water quality and access problems and climate change
impacts, of which had an impact on crop yield and farm profit. Furthermore, results showed
that 69.2% of farmers were aware of the environmental implications of urban farming.
However, it was found that due to the farmers limited financial resources, farmers identified
urban farming mainly as a source of income and a strategy to obtain extra food and less for the
benefit of the environment. The study found that market availability (p=0.003), training on soil
management (p=0.0011) and access to credit (p=0.097) were significant factors in the adoption
of urban farming practices. The study further revealed that the farmers adoption of urban
farming and water quality management practices were challenged by socio-economic and
institutional factors such as the lack of knowledge, farmer training, access to markets, access
to credit and poor extension support. An environmental management framework was provided
to address the challenges that hinder the smallholder farmers adoption of urban farming and
water quality management practices.Authour's Keywords: urban farming, environmental management, food security, climate change
impacts
Assessing Fish Populations Through Length–Weight Relationships and Condition Factors in Three Lakes of Nigeria
No full textFreshwater fisheries ecology encompasses the intricate interactions among fish species, their aquatic habitats, and human activities [...
Fotografía del ojo
No full textEn el presente trabajo se describen someramente los principios generales de la fotografía y se describe en profundidad la macro fotografía aplicada a la obtención de imágenes fotográficas de calidad del ojo de los animales domésticos. Se clescriben los equipos, sistemas de iluminación y películas más adecuadas en opinión del autor.In this paper a brief description of the general principles of photography and a detailed report of macrophotography applied to the adquisition of quality photographs of the eye of domestic animals, is made. The apparatus, methods of illumination and films which in the author 's opinion are most adequate, are described
Infrastructure finance in Africa through the Public Private Partnership (PPP): Is the Lekki-Epe Toll Road (Nigeria) economically sustainable?
No full textThe aims of the study could be highlighted as follows: 1. To review the existing academic literature on infrastructure finance, particularly in the area of road construction and the economic models adopted in the financing process. 2. To determine whether the accruing benefits from the concession of Lekki-Epe Expressway out-weighed the cost of constructing the purported road. 3. To determine whether the inflows from toll Lekki-Epe expressway can economically sustain the cost over-run on the Lekki-Epe express road concession
Knowledge And Attitudes Towards Non-Communicable Diseases (ncd) Amongst Village Health Teams (vht) In Iganga And Mayuge Districts, Uganda.
No full textBackground: Community health workers (CHW) have successfully contributed to prevention, management and care for NCD interventions in several low and middle income countries (LMIC). In Uganda, the CHW, known as Village Health Teams (VHT) are the initial point of care in their communities. Though their present roles only attend to infectious diseases, maternal and child health issues, their skills could potentially be utilized in national efforts to promote NCD prevention in communities.
Aim: To assess baseline knowledge of and attitudes toward NCD and NCD care among VHT in Uganda as a step towards identifying a potential role for VHT in community NCD prevention and management.
Design: A knowledge, attitudes and practices questionnaire was distributed to 68 active VHT workers from Iganga and Mayuge districts, Uganda. In addition, four focus group discussions were conducted with these VHT workers (n=33). Discussions focused on NCD knowledge, current experience with NCD, and barriers and facilitators to incorporating NCD care into their role as community VHT. A thematic qualitative analysis was conducted to identify salient themes in the data.
Results: VHT possessed some knowledge and awareness of NCD but identified a lack of knowledge about NCDs in their communities. VHT were enthusiastic about incorporating NCD care into their role and thought that they could serve as effective conduits of knowledge about NCD to their communities, if empowered through NCD education, the availability of proper reporting and referral tools, and visible collaborations with medical personnel. Current barriers to their participation in NCD care included lack of VHT education on NCD, lack of assistance/supervision from medical personnel, lack of medical services, medication, equipment and personnel and lack of VHT regard from community.
Conclusion: Ugandan VHT already possess some nuanced knowledge about NCD and their risk behaviors. With context-specific and culturally adapted training, VHT want to and could play a role in spreading community awareness of NCD and reporting and referral of community members for NCD screening
Estancia en las fronteras del género: autoficción y posmemoria en Sangre en el ojo de Lina Meruane
No full textThis article will analyze the use of autofiction in the novel Sangre en el ojo, by the Chilean author Lina Meruane. In this work, the resource does not only have the goal to confuse the reader, but it also projects the fiction onto the represented world, seeking to critique it. There will also be examined the correlation between autofiction and posmemory writing, since both intend to question the relation of History with fiction, as well as to move the enunciation locus, allowing marginalized subjects to express their experience. In conclusion, we will try to demonstrate that the nominal and biographical coincidence between the author and narrator in Sangre en el ojo has, in addition to a playful characteristic of autofiction, a critic and questioning intention about the contemporary world and the narratives that shape it.Resumen: En este artículo se analizará el uso de la autoficción en la novela Sangre en el ojo, de la chilena Lina Meruane. En la obra, este recurso no solo tiene el objetivo de causar confusión en la o el lector, sino que también proyecta la ficción hacia el mundo representado, con lo que busca criticarlo. Asimismo, se examina la correlación de la autoficción con la escritura de la posmemoria, pues ambas pretenden cuestionar el vínculo entre la historia y la ficción, así como trasladar el locus de enunciación y permitir que sujetos marginados expresen su vivencia. En conclusión, se demostrará que la coincidencia nominal y biográfica entre la autora y la narradora de esta obra tiene, además del componente lúdico propio de la autoficción, una intención crítica y cuestionadora del mundo contemporáneo y las narrativas que lo conforman.
Palabras clave: autoficción, posmemoria, literatura chilena, metaficción, Lina Meruane, Sangre en el ojo
Abstract: This article will analyze the use of autofiction in the novel Sangre en el ojo, by the Chilean author Lina Meruane. In this work, the resource does not only have the goal to confuse the reader, but it also projects the fiction onto the represented world, seeking to critique it. There will also be examined the correlation between autofiction and posmemory writing, since both intend to question the relation of History with fiction, as well as to move the enunciation locus, allowing marginalized subjects to express their experience. In conclusion, we will try to demonstrate that the nominal and biographical coincidence between the author and narrator in this novel has, in addition to a playful characteristic of autofiction, a critic and questioning intention about the contemporary world and the narratives that shape it.
Keywords: autofiction, postmemory, Chilean literature, metafiction, Lina Meruane, Sangre en el oj
APRENDIZAGEM SITUADA E EDUCAÇÃO EM BIOLOGIA: EFEITOS DA ESTRATÉGIA DE CONTROVÉRSIA CONSTRUTIVA E DA AUTOEFICÁCIA GENÉTICA NA ATITUDE DE ALUNOS DO ENSINO MÉDIO EM RELAÇÃO A CONCEITOS DE GENÉTICA
No full textGenetics Concepts (GCs) as received a great deal of attention in recent times due to its importance in human being development and society wellbeing at large. However, recent advancements in genetics, have sparked significant public controversy, in areas like reproductive cloning, ordering genetically modified infants, genetic therapy, modification of animals and crops species, organs farming, and sex determination. Also, available reports have shown that students exhibited negative attitude to GCs, while previous interventions failed to incorporate socioscietific issues into the teaching of GCs. In this regard, it is important to raise genetics literate citizens who will be equipped with the fundamental information, positive attitude and skills needed in genetics using Constructive Controversy Strategy (CCS). The study was anchored to situated learning theory, while the pretest-posttest control group quasi-experimental design using 2x3 factorial matrix was adopted. An intact class of secondary school two science students from six public school was randomly assigned to CCS (121) and conventional strategy (119). Five instruments were used. Data were analysed using analysis of covariance at 0.05 level of significance. There was a significant main effects of treatment on student’ attitude (F(1;215)=4.42; partial η2=0.02) to GCs. The participants exposed to CCS had better attitude to GCs (60.85) than those taught with CS (55.15). Genetics self-efficacy had significant main effect on students’ attitude to GCs (F(2;214)= 3.12; partial η2=0.03), in favour of participants with low genetics self-efficacy. Treatment and self-efficacy had significant interaction effect on students’ attitude to GCs (F(2; 213) = 3.04; partial η2 = 0.05). Constructive controversy strategy enhanced secondary school students’ genetics concepts in Oyo State, Nigeria. Biology teachers should adopt this strategy in teaching genetics concepts and related socioscientic issues in genetics concepts.Los conceptos de genética (CG) han recibido mucha atención en los últimos tiempos debido a su importancia en el desarrollo del ser humano y el bienestar de la sociedad en general. Sin embargo, los avances recientes en genética han provocado una importante controversia pública en áreas como la clonación reproductiva, el pedido de bebés modificados genéticamente, la terapia genética, la modificación de especies animales y agrícolas, el cultivo de órganos y la determinación del sexo. Además, los informes disponibles han demostrado que los estudiantes exhibieron una actitud negativa hacia las GC, mientras que intervenciones anteriores no lograron incorporar cuestiones sociosociales en la enseñanza de las GC. En este sentido, es importante formar ciudadanos alfabetizados en genética que estén equipados con la información fundamental, la actitud positiva y las habilidades necesarias en genética utilizando la Estrategia de Controversia Constructiva (CCS). El estudio se ancló en la teoría del aprendizaje situado, mientras que se adoptó el diseño cuasiexperimental del grupo de control pretest-postest utilizando una matriz factorial 2x3. Una clase intacta de secundaria, dos estudiantes de ciencias de seis escuelas públicas, fueron asignados aleatoriamente a CCS (121) y estrategia convencional (119). Se utilizaron cinco instrumentos. Los datos se analizaron mediante análisis de covarianza con un nivel de significancia de 0,05. Hubo efectos principales significativos del tratamiento en la actitud de los estudiantes (F(1;215)=4,42; η2 parcial=0,02) hacia GC. Los participantes expuestos a CCS tuvieron mejor actitud hacia GC (60,85) que los enseñados con CS (55,15). La autoeficacia genética tuvo un efecto principal significativo en la actitud de los estudiantes hacia GC (F(2;214)= 3,12; η2 parcial=0,03), a favor de los participantes con baja autoeficacia genética. El tratamiento y la autoeficacia tuvieron un efecto de interacción significativo en la actitud de los estudiantes hacia los GC (F(2; 213) = 3,04; η2 parcial = 0,05). La estrategia de controversia constructiva mejoró los conceptos genéticos de los estudiantes de secundaria en el estado de Oyo, Nigeria. Los profesores de biología deberían adoptar esta estrategia al enseñar conceptos de genética y cuestiones sociocientíficas relacionadas con los conceptos de genética.Os Conceitos de Genética (GCs) têm recebido muita atenção nos últimos tempos devido à sua importância no desenvolvimento do ser humano e no bem-estar da sociedade em geral. No entanto, os recentes avanços na genética provocaram uma controvérsia pública significativa, em áreas como a clonagem reprodutiva, a encomenda de bebés geneticamente modificados, a terapia genética, a modificação de espécies de animais e culturas, a criação de órgãos e a determinação do sexo. Além disso, os relatórios disponíveis mostraram que os alunos exibiram uma atitude negativa em relação às GCs, enquanto as intervenções anteriores não conseguiram incorporar questões sociocientíficas no ensino das GCs. A este respeito, é importante formar cidadãos alfabetizados em genética que estejam equipados com a informação fundamental, atitude positiva e competências necessárias em genética, utilizando a Estratégia de Controvérsia Construtiva (CCS). O estudo foi ancorado na teoria da aprendizagem situada, adotando-se o desenho quase experimental pré-teste-pós-teste de grupo controle, utilizando matriz fatorial 2x3. Uma turma intacta do ensino secundário, dois estudantes de ciências de seis escolas públicas, foi aleatoriamente designada para CCS (121) e estratégia convencional (119). Foram utilizados cinco instrumentos. Os dados foram analisados por meio de análise de covariância com nível de significância de 0,05. Houveram efeitos principais significativos do tratamento na atitude dos alunos (F(1;215)=4,42; η2 parcial=0,02) em relação ao GCs. Os participantes expostos à CCS tiveram melhor atitude em relação ao GCs (60,85) do que aqueles ensinados com a CS (55,15). A autoeficácia genética teve efeito principal significativo na atitude dos alunos em relação ao GCs (F(2;214) = 3,12; η2 parcial = 0,03), em favor dos participantes com baixa autoeficácia genética. O tratamento e a autoeficácia tiveram efeito de interação significativo na atitude dos alunos em relação aos GCs (F(2; 213) = 3,04; η2 parcial = 0,05). A estratégia de controvérsia construtiva melhorou os conceitos de genética dos alunos do ensino secundário no estado de Oyo, na Nigéria. Os professores de biologia devem adotar esta estratégia no ensino de conceitos de genética e questões sociocientíficas relacionadas em conceitos de genética.Os Conceitos de Genética (GCs) têm recebido muita atenção nos últimos tempos devido à sua importância no desenvolvimento do ser humano e no bem-estar da sociedade em geral. No entanto, os recentes avanços na genética provocaram uma controvérsia pública significativa, em áreas como a clonagem reprodutiva, a encomenda de bebés geneticamente modificados, a terapia genética, a modificação de espécies de animais e culturas, a criação de órgãos e a determinação do sexo. Além disso, os relatórios disponíveis mostraram que os alunos exibiram uma atitude negativa em relação às GC, enquanto as intervenções anteriores não conseguiram incorporar questões sociocientíficas no ensino das GC. A este respeito, é importante formar cidadãos alfabetizados em genética que estejam equipados com a informação fundamental, atitude positiva e competências necessárias em genética, utilizando a Estratégia de Controvérsia Construtiva (CCS). O estudo foi ancorado na teoria da aprendizagem situada, adotando-se o desenho quase-experimental pré-teste-pós-teste de grupo controle, utilizando matriz fatorial 2x3. Uma turma intacta do ensino secundário, dois estudantes de ciências de seis escolas públicas, foi aleatoriamente designada para CCS (121) e estratégia convencional (119). Foram utilizados cinco instrumentos. Os dados foram analisados por meio de análise de covariância com nível de significância de 0,05. Houve efeitos principais significativos do tratamento na atitude dos alunos (F(1;215)=4,42; η2 parcial=0,02) em relação ao GC. Os participantes expostos à CCS tiveram melhor atitude em relação à GC (60,85) do que aqueles ensinados com a CS (55,15). A autoeficácia genética teve efeito principal significativo na atitude dos alunos em relação ao GC (F(2;214) = 3,12; η2 parcial = 0,03), em favor dos participantes com baixa autoeficácia genética. O tratamento e a autoeficácia tiveram efeito de interação significativo na atitude dos alunos em relação aos GCs (F(2; 213) = 3,04; η2 parcial = 0,05). A estratégia de controvérsia construtiva melhorou os conceitos de genética dos alunos do ensino secundário no estado de Oyo, na Nigéria. Os professores de biologia devem adotar esta estratégia no ensino de conceitos de genética e questões sociocientíficas relacionadas em conceitos de genética
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