2,703 research outputs found
Patočka y Diotima. Notas para un diálogo sobre lo bello
No full textNegative Platonism is perhaps one of Jan Patočka's texts that has received the most attention in the academic world. Its importance is rarely doubted. However, today we are far from exhausting the implications of the Czech philosopher's interpretation of Plato. In particular, the conception of the Platonic Idea that derives from Patočka's reading does not seem to have been sufficiently confronted with what Plato himself said in his dialogues. According to the author, there seems to be a particular affinity between what Diotima says in her speech in the Symposium and Patočka's interpretation of Plato, which, until now, does not seem to have received enough attention in the academic literature on these two authors. In a similar way to what Patočka proposes with the experience of freedom as a door that opens to the consideration of the Idea, Diotima anchors the recognition of beauty in itself with the experience of beauty in the world. This "anchoring" would be given by the ascending path proposed in the scala amoris, in which eros, assumes an “integrative function” within the lover. Precisely, this integrative function carried out by eros seems to give reason to the link that Diotima establishes between that which is beauty in itself and the true virtue that the lover engenders by experiencing it.Platonismo negativo es quizás uno de los textos de Jan Patočka que más atención ha recibido en el ámbito académico. Su importancia es pocas veces puesta en duda. Con todo, hoy nos encontramos lejos de agotar las implicaciones que conlleva la interpretación que hace de Platón el filósofo checo. Particularmente, la concepción de la Idea platónica que se deriva de la lectura patočkiana, no parece haber sido suficientemente confrontada con lo dicho por el mismo Platón en sus diálogos. Según el autor, parece existir una afinidad particular entre lo dicho por Diotima en su discurso en el Banquete y la interpretación patočkiana de Platón que, hasta el momento, no parece haber recibido suficiente atención en la literatura académica sobre estos dos autores. De manera similar a lo que plantea Patočka con la experiencia de la libertad como puerta que abre a la consideración de la Idea, Diotima ancla el reconocimiento de lo bello en sí con la experiencia de lo bello en el mundo. Este “anclaje” se daría gracias al camino en ascenso planteado en la scala amoris, en el que eros, siendo amor de lo bello, asume una función integradora en el interior del amante. Justamente, esta función integradora llevada a cabo por eros parece dar razón del vínculo que establece Diotima entre aquello que es bello en sí mismo y la virtud verdadera que el amante engendra al experimentarlo
Quasi-particle band structure and optical properties of Perylene Crystal for Solar Cell Application: A G0W0 Calculations
No full textAbdullahi Lawal* , Musa Bello and Ahmed Musa Kona
The increased demand for clean energy due to future fear of scarcity and alarming pollution threats from fossil fuels, has propelled stringent drive on the search for alternative energy source including photovoltaic technology. This technology relies on renewable source and is green, ecofriendly and easily avoidable. In view of the role of photovoltaic technology on organic compound for electronic transition, this study is designed to implement theoretical calculations of structural, electronic and optical properties of the perylene crystal using highly accurate first-principles approach for a many-body perturbation theory (MBPT). The calculated lattice parameters of perylene with GGA-PBE are reasonably in good agreement with experimental measurement.
Many-body perturbation theory (MBPT) based on the G0W0 approximation was used for the calculation of band structure. The bandgap value of 2.4 eV, obtained was consistent with the expected range from experiment (i.e, 2.33-2.46 eV). The optical properties including absorption coefficient, reflectivity, refractive index and energy loss function are derived from the calculated complex dielectric function to understand the optical behavior of perylene. Optical properties calculations show that the results obtained within G0W0 approximation are also close to experimental results. With the evaluated optical gap of 2.4 eV and the expected strong absorption of perylene crystal in the visible light, the investigated material is most likely suitable for solar cell application
LÍNEAS MAESTRAS DE LA GRAMÁTICA CASTELLANA DE ANDRÉS BELLO
No full textResumen:El trabajo es continuación y actualización de otros trabajos del autor sobre la célebre Gramática de la lengua castellana destinada al uso de los americanos de Andrés Bello. Seguimos en parte la labor emprendida por Rufino José Cuervo al abordar las líneas maestras de esta gramática tan importante durante siglo y medio en los países de habla castellana.Se investigan sus principios fundamentales y no tanto los usos del castellano Se discute su dependencia e independencia de la Gramática General de Port-Royal. En las partes de la oración el trabajo se fija especialmente en la jerarquía de las partes de la oración (Jespersen). Se destaca la semejanza de la definición de verbo con el estoicismo (Crisipo). Se insiste en la novedad para su tiempo de la definición de preposición. También se nota la deficiencia en el estudio de los nexos hipotácticos. Es pues un estudio en parte teórico, en parte histórico, que quiere ser crítico y sistemático.Palabras Claves: Gramática, Andrés Bello, preposición, estoicismo, Gramática General de Port-Royal.Abstract:The work is continuation and the updating of other works of the author on the brain Gramática of the Castilian language destined to the use of the Americans of Andrés Bello. We continue in the part of the workmanship by Rufino José Cuervo when approaching the main lines of this grammar so important during the century and a half in the countries of Castilian speaking. Its fundamental principles are investigated and not so much the uses of the castle it is discussed its Dependence and independence of the General Grammar of Port-Royal. . In the parts of the sentence the work is especially focused on the hierarchy of parts of the sentence (Jespersen). The similarity of the definition of verb with stoicism (Chrysippus) stands out. It insists on the novelty for the time of the definition of preposition. There is also a deficiency in the study of hypothetical nexus. It is therefore a partly theoretical, partly historical, study that wants to be critical and systematic.Key Words: Grammar, Andrés Bello, preposition, stoicism, General Grammar of Port-Royal
Infestation of Zebu cattle (Bos indicus Linnaeus) by hard ticks (Acari: Ixodidae) in Maiduguri, Northeastern Nigeria
No full textPaul, Bura Thlama, Bello, Amina Mohammed, Haruna, Nasir Musa, Dauda, Jamila, Ojo, Deborah Tosin, Gadzama, Mercy Ahmed (2017): Infestation of Zebu cattle (Bos indicus Linnaeus) by hard ticks (Acari: Ixodidae) in Maiduguri, Northeastern Nigeria. Persian Journal of Acarology 6 (3): 213-224, DOI: 10.22073/pja.v6i3.28203, URL: https://www.mendeley.com/catalogue/bfd2a667-ffa6-3ee3-adbf-1a9684dc3adb
Library user’s value-chain: assessing the use of library services by undergraduates in Ahmadu Bello University, Zaria
No full textThis study argues that in order to meet the value chain of library users and increase library patronage, there is the need to assess the use of library services by Undergraduate Students in Ahmadu Bello University, Zaria especially during the examination period when patronage is at the peak. The study had three objectives: To identify the purpose of use of Kashim Ibrahim Library by Undergraduate students in Ahmadu Bello University, Zaria during examination. To identify the services Undergraduate students of Ahmadu Bello University, Zaria use in Kashim Ibrahim Library during examination. To find out the challenges Undergraduate students face in the use of Kashim Ibrahim Library services during examination? A cross-sectional survey research design was adopted and questionnaire was used to collect data for the study. The study revealed that undergraduate in Ahmadu Bello University, zaria use the Library to read their own books during examination, they also use the wireless Internet services and the wired Internet and the computer services of the MTN Net Library. The study also discovered that undergraduates basically use the library space and the Internet and Computer services of the Library. Finally, the study found that the major challenges undergraduates face with the use of library services during examination includes lack of space, inadequate number of computers, lack of comfortable seats, poor Internet services, inadequate power outlets for the students’ laptops and lack of assistance from library staff. The study then recommended that Library management should constitute a section of the library for user needs elicitation. Library space should be well furnished and more space could be freed up in the Library if some of the old resources of the library are weeded and made into closeaccess. They will only be accessed if they are demanded for. The library management could also partition some of the available spaces to make way for areas for small group discussions. Library Management could embark on advocacy to Government parastatals that donate ICTs free of charge. Parastatals like NITDA, NCC and even Ministry of Communication. This will help them secure the additional ICTs for undergraduate use
Assessment of channels for disseminating admission information to student applicants in Ahmadu Bello University, Zaria
No full textThis study assessed the channels for disseminating admission information to student applicants to Ahmadu Bello University, Zaria. Three objectives of this study include: to identify the types of information are disseminated to Student Applicants to the Department of Library and Information Science, Ahmadu Bello University, Zaria. To identify the Channels are used by the Department of Library and Information Science in disseminating information to Student Applicants. To find out the challenges associated with information dissemination to Student Applicants to the Department of Library and Information Science, Ahmadu Bello University, Zaria. Two hundred and twenty undergraduate students were sampled for the study, but only one hundred and ninety-four questionnaires were deemed fit and appropriate for analysis. The study discovered that Entry requirements and Undergraduate programmes available in the department were the types of information that is disseminated by the department. However, information about sales of forms and jamb subject combinations are disseminated by Jamb office. Similarly, the study revealed that the channel of information dissemination in the Department of Library and Information science is the departmental website. The study then recommended that the departments in the university should be put in charge of admission information dissemination for their respective departments. This is because they know best the requirements of their respective departments and the information that student applicants need. And that A multi-channel digital call centre should be provided for all departments that will house a digital help desk. This centre will incorporate telephone, email, social media (WhatsApp Group, Face book Fan page, Twitter Handle and Instagram pages) for the department. This is so that student applicants can contact the department without having to come to Zaria
Figure 2 in Infestation of Zebu cattle (Bos indicus Linnaeus) by hard ticks (Acari: Ixodidae) in Maiduguri, Northeastern Nigeria
No full textFigure 2. Numbers of individual ticks of different species collected from different body parts of cattle.Published as part of Paul, Bura Thlama, Bello, Amina Mohammed, Haruna, Nasir Musa, Dauda, Jamila, Ojo, Deborah Tosin & Gadzama, Mercy Ahmed, 2017, Infestation of Zebu cattle (Bos indicus Linnaeus) by hard ticks (Acari: Ixodidae) in Maiduguri, Northeastern Nigeria, pp. 213-224 in Persian Journal of Acarology 6 (3) on page 218, DOI: 10.22073/pja.v6i3.28203, http://zenodo.org/record/717366
Factores que influyen en el establecimiento in vitro de Musa sp. L. “banano” variedad Williams
No full textLa propagación in vitro de Musa sp. L. “banano”, requiere una etapa de establecimiento para eliminar contaminantes y adaptar el tejido vegetal a las nuevas condiciones de cultivo. El objetivo del presente estudio fue determinar la influencia de factores como el desinfectante, regulador de crecimiento y antioxidantes, en el establecimiento in vitro de Musa sp. L. variedad Williams. Para lograr dicho objetivo se evaluaron tratamientos de desinfección con distintas concentraciones y tiempos de inmersión en hipoclorito de sodio (T0: testigo; T1: 3% NaClO por 15 minutos; T2: 4% NaClO por 10 minutos) y en el medio de establecimiento se evaluaron diferentes concentraciones de bencilaminopurina (BAP) en conjunto con antioxidantes como ácido ascórbico, cisteína y carbón activado (M0: testigo; M1: BAP, 1mg/l; ácido ascórbico, 100mg/l y cisteína, 60mg/l; M2: BAP, 3,5mg/l; ácido ascórbico, 30mg/l y cisteína, 40mg/l; M3: BAP, 5mg/l; carbón activado, 3g/l y ácido ascórbico, 100mg/l). El mejor resultado se obtuvo en el tratamiento T1 con 92,86% de sobrevivencia y 7,14% de contaminación. Se utilizó un diseño completamente al azar desbalanceado. Se aplicó la prueba no paramétrica de Kruskal Wallis para analizar las respuestas morfoanatómicas de los explantes de Musa sp. L. variedad Williams. No se hallaron diferencias estadísticamente significativas en la altura, número de brotes, hojas y raíces, excepto en la anchura, donde los tratamientos M2 y M3 presentaron diferencia estadísticamente significativa del M0.
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The in vitro propagation of Musa sp. L. “banano”, requires an establishment stage to eliminate contaminants and adapt plant tissue to new cultivation conditions. The aim of this study was to determine the influence of factors such as the disinfectant, growth regulator, and antioxidants on the in vitro establishment of Musa sp. L. Williams variety. To achieve this goal, disinfection treatments were evaluated with different concentrations and immersion times in sodium hypochlorite (T0: control; T1: 3% NaClO for 15 minutes; T2: 4% NaClO for 10 minutes). In the establishment medium, different concentrations of benzylaminopurine (BAP) were assessed in conjunction with antioxidants such as ascorbic acid, cysteine, and activated carbon (M0: control; M1: BAP, 1mg/l; ascorbic acid, 100mg/l; cysteine, 60mg/l; M2: BAP, 3.5mg/l; ascorbic acid, 30mg/l; cysteine, 40mg/l; M3: BAP, 5mg/l; activated carbon, 3g/l; ascorbic acid, 100mg/l).The best result was achieved in treatment T1 with 92.86% survival and 7.14% contamination. A unbalanced completely randomized design was used. The non-parametric Kruskal-Wallis test was applied to analyze the morphoanatomical responses of the Musa sp. L. Williams variety explants. There were no statistically significant differences in height, number of shoots, leaves, and roots, except for width, where treatments M2 and M3 showed a statistically significant difference from M0
Detection of Listeria Species and Staphylococcus aureus in Smoked Fish Sold Within Ahmadu Bello University Main Campus Samaru, Zaria
No full textHygiene practices in food processing plants are important determinants of food quality and safety. Poor hygiene practices may result in the contamination of foods and food products with pathogens, which means a serious risk to public health. This study was aimed at isolating and determining the antibacterial susceptibility profile of Listeria spp. and Staphylococcus aureus from smoked fish sold within Ahmadu Bello University Main Campus. A total of twenty-five (25) smoked fish samples were collected. Fifteen (15) samples, five each from Community market, Akenzua market and ICSA Ramat market were processed and inoculated on Mannitol Salt Agar for the isolation of Staphylococcus aureus. The remaining ten (10) samples were processed using stomacher and on Listeria Selective Agar (Oxford formulation) for the isolation of Listeria spp. The isolates were characterized based on their colonial morphology, Gram’s and biochemical reactions. In addition, agglutination test was carried out to further identify Listeria spp. Antibacterial susceptibility patterns of the isolates was determined using disc diffusion method. Staphylococcus aureus was isolated from all the 15 samples analyzed, giving an occurrence of 100%. However, only one Listeria spp. (Listeria ivanovii) was isolated from the 10 samples analyzed, with a 10% occurrence. All the S. aureus isolates were susceptible to most of the antibiotics, but four were resistant to rocephin and eight to ampiclox. The Listeria ivanovii isolate was also resistant to most of the antibiotics and susceptible to only two. The Multiple Antibiotics Resistance Index (MARI) of S. aureus isolates ranges from 0.2 to 0.4 while it was 0.75 for the Listeria ivanovii isolate. The study demonstrated that smoked fish sold in Ahmadu Bello University Main Campus were found to be contaminated and its consumption is potentially regarded as a health hazard, as such measures should be adopted to control it
Xuan Bello, translator and author : his role in the development of the Asturian literature of "Surdimientu"
No full textXuan Bello is one of the best-known Asturian authors in the Iberian Peninsula. His work as a poet developed in parallel with his work as a translator, especially of Portuguese and Galician, two languages that have influenced his own literary production in Asturian. His dual role as author and translator is inseparable from its cultural context, characterized above all by Surdimientu, the movement to recover the Asturian language and culture launched in 1974. Indeed, Asturian literature can be seen as an emerging literature, supported by a group of agents who take on various functions inside the literary system. The aim of this article is to analyse the relationship between Bello's poetry and prose with: 1) The role played by the author within the framework of Surdimientu, 2) The role played by his translations, and 3) The impact of the translations of his works in prose on the Catalan literary system.Xuan Bello és un dels autors asturians més coneguts a la península Ibèrica. La seva formació com a poeta es desenvolupa en paral·lel a la seva tasca de traductor, sobretot del portuguès i del gallec, llengües que l'influeixen en la seva obra (en asturià). La seva doble faceta com a autor i traductor és indissociable del context cultural en què es desenvolupa, marcat pel Surdimientu, el moviment de recuperació de la llengua i cultura asturianes iniciat el 1974. En aquest context, la literatura asturiana pot ser vista com una literatura emergent, que disposa d'una sèrie d'agents que assumeixen diverses funcions en el sistema literari. L'objectiu d'aquest article és analitzar la relació de l'obra (poesia i prosa) de Bello amb: 1) El paper que l'autor desenvolupa en el marc del Surdimientu; 2) El paper que hi assumeixen les seves traduccions, 3) L'impacte de les traduccions de la seva obra en prosa en el sistema literari català
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