1000 resultados para industria ósea
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The distribution of three important dissolved forms of nitrogen, viz. nitrate, nitrite and urea in the surface and bottom water samples collected from 27 selected hydrographic profiles, in the Arabian Sea, along the west coast of India is described. Of the three forms, nitrate concentrations were the highest and comparatively higher concentrations were observed in the bottom water. Decomposition of organic matter resulting in the release of the thermodynamically stable nitrogen species, i.e. nitrate, may be the major factor resulting in higher nitrate concentrations at these depths, where the water is also characterized by low values of dissolved oxygen and temperature. The significant positive correlation between A.O.U. and nitrate of the bottom water samples emphasizes the role of oxidative decomposition of organic matter which plays an active role in reducing the oxygen concentrations below the theoretical values since at this depth ( 200 m) the net production is taken to be zero. This is also evidenced by the negative correlation of nitrate with dissolved oxygen and temperature, for the bottom samples
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The main objectives of the study are: To study the seasonal distribution of copepods with special reference to their qualitative and quantitative distribution, with notes on biodiversity in the Andaman Sea and the Bay of Bengal. To study the spatial and temporal distribution of copepods in the Andaman Sea and the Bay of Bengal.To understand the hydrography and the environmental characteristics of the Andaman Sea and the Bay of Bengal and their role in the distribution and biomass of copepods.To study the vertical migration/diurnal migration of the copepods. To study the difference between the coastal and oceanic composition of copepods in the study area and the factors responsible for it.
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The thesis is comprised of seven chapters. Chapter 1 gives a general introduction to marine actinomycetes; Chapter 2 gives an account on the morphological, biochemical and physiological characterization of marine actinomycetes. Comprehensive description of molecular identification and phylogenetic analysis of actinomycetes is dealt with in Chapter 3. The antimicrobial property with special reference to antivibrio activity is described in Chapter 4. Chapter 5 explores the melanin production ability of marine actinomycetes, characterization of melanin and evaluation of its bioactivity. Chapter 6 illustrates the study on chitinolytic Streptomyces as antifungal and insecticidal agents. Summary and Conclusion of the study is presented in Chapter 7, followed by References and Appendices.The present study provides an insight into the various actinomycetes occurring in the sediments of Arabian Sea and Bay of Bengal. Streptomyces was found to be the dominant group followed by Nocardiopsis. Eventhough generic level identification is possible by traditional phenotypic methods, species level identification necessitate a polyphasic approach including both phenotypic and genotypic characterization. Antibiotic production coupled with biogranulation property helped in the effective utilization of the actinomycetes for the control of vibrios. Melanin from Streptomyces bikiniensis was proved to be a promising antioxidant and photoprotectant. Marine actinomycetes were found to be a good source of hydrolytic enzymes and the chitinolytic isolates could be explored as biocontrol agents in terms of antifungal and insecticidal property. The present study explored the potential of marine actinomycetes especially Streptomycetes as a promising source of bioactive molecules for application in aquaculture and pharmaceutical industry.
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Elasmobranchs comprising sharks, skates and rays have traditionally formed an important fishery along the Indian coast. Since 2000, Indian shark fishermen are shifting their fishing operations to deeper/oceanic waters by conducting multi-day fishing trips, which has resulted in considerable changes in the species composition of the landings vis- a-vis those reported during the 1980’s and 1990’s. A case study at Cochin Fisheries Harbour (CFH), southwest coast of India during 2008-09 indicated that besides the existing gillnet–cum- hooks & line and longline fishery for sharks, a targeted fishery at depths >300-1000 m for gulper sharks (Centrophorus spp.) has emerged. In 2008, the chondrichthyan landings (excluding batoids) were mainly constituted by offshore and deep-sea species such as Alopias superciliosus (24.2%), Carcharhinus limbatus (21.1%), Echinorhinus brucus (8.2%), Galeocerdo cuvier (5.4%), Centrophorus spp. (7.3%) and Neoharriotta pinnata (4.2%) while the contribution by the coastal species such as Sphyrna lewini (14.8%), Carcharhinus sorrah (1.4%) and other Carcharhinus spp. has reduced. Several deep-sea sharks previously not recorded in the landings at Cochin were also observed during 2008-09. It includes Hexanchus griseus, Deania profundorum, Zameus squamulosus and Pygmy false catshark (undescribed) which have been reported for the first time from Indian waters. Life history characteristics of the major fished species are discussed in relation to the fishery and its possible impacts on the resource
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The overall attempt of the study was aimed to understand the microphytoplankton community composition and its variations along a highly complex and dynamic marine ecosystem, the northern Arabian Sea. The data generated provides a first of its kind knowledge on the major primary producers of the region. There appears significant response among the microphytoplankton community structure towards the variations in the hydrographic conditions during the winter monsoon period. Interannually, variations were observed within the microphytoplankton community associated with the variability in temperature patterns and the intensity of convective mixing. Changing bloom pattern and dominating species among the phytoplankton community open new frontiers and vistas towards more intense study on the biological responses towards physical processes. The production of large amount of organic matter as a result of intense blooming of Noctiluca as well as diatoms aggregations augment the particulate organic substances in these ecosystem. This definitely influences the carbon dynamics of the northern Arabian Sea. Detailed investigations based on time series as well as trophodynamic studies are necessary to elucidate the carbon flux and associated impacts of winter-spring blooms in NEAS. Arabian sea is considered as one among the hotspot for carbon dynamics and the pioneering records on the major primary producers fuels carbon based export production studies and provides a platform for future research. Moreover upcoming researches based on satellite based remote sensing on productivity patterns utilizes these insitu observations and taxonomic data sets of phytoplankton for validation of bloom specific algorithm development and its implementation. Furthermore Saurashtra coast is considered as a major fishing zone of Indian EEZ. The studies on the phytoplankton in these regions provide valuable raw data for fishery prediction models and identifying fishing zones. With the Summary and Conclusion 177 baseline data obtained further trophodynamic studies can be initiated in the complex productive North Eastern Arabian Seas (NEAS) ecosystem that is still remaining unexplored.
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The present study is the first attempt to understand population characteristics of the deep-sea pandalid shrimp, P. quasigrandis and to assess the status of these resources off Kerala coast.Total mortality coefficient (Z) of P. quasigrandis estimated by various methods.Natural mortality coefficient (M) calculated was 0.65 and 1.02 by Pauly‟sempirical formula and Srinaths‟s formula respectively The deep-sea shrimp P. quasigrandis exploited from the present fishing ground and their monetary return has started showing a declining trend. By observing the current yield and economic return, there is no further scope for increasing the catch from the present fishing ground. The study indicated that majority of the deep-sea shrimp trawlers, especially targeted for pandalid shrimps still concentrated off Kollam area (Quilon Bank). Even though researchers had located several potential deep-sea fishing grounds based on exploratory surveys in Indian EEZ , fishermen are unaware of these fishing grounds located and hence sharing the information about new potential deep-sea fishing grounds could avert the possible stock decline due to the intensive targeted deep-sea shrimp fishery in the Quilon Bank. Hence, the present study recommended that part of the effort from existing fishing grounds may be shifted to newly located deep-sea fishing grounds which will help in a sustainableexploitation of deep-sea resources off Kerala coast.
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Available information on abundance of myctophids and their utilisation indicate that there is excellent scope for development of myctophid fisheries in Indian Ocean. Most of the conventional fish stocks have reached a state of full exploitation or over-exploitation. Hence there is need to locate new and conventional fishery resources in order to fill in the supply-demand gap, in the face of increasing demand for fish. Information on length-weight relationship, age and growth, spawning season, fecundity and age at maturity and information on bycatch discards are required for sustainable utilization of myctophid resource in the Indian Ocean
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Se presenta memoria final de proyecto educativo que propone introducir al alumnado de ??mbito rural en el conocimiento del cine y del lenguaje audiovisual as?? como elaborar materiales y recursos de apoyo. Se realiza en el CPR Alcalde Juan Garc??a en Vi??uelas, M??laga.
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Primer premio de la primera edición de Premios a la Elaboración de Materiales de Estudio sobre la Región de Murcia en la modalidad de Bachillerato.
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Conocer el tratamiento que la lengua asturiana recibe en los libros de texto que utilizan en los centros educativos del Principado de Asturias. Editoriales que comercializan sus textos en el Principado de Asturias en las asignaturas de Cultura Clásica, Lengua Latina y Lengua Castellana y Literatura. En total se manejan 36 libros de texto que corresponden a ediciones posteriores al año 2002. El informe proporciona, en primer lugar, una revisión de las distintas bases legales referidas, por un lado, al tratamiento de las lenguas minoritarias y, por otro, a los contenidos curriculares vigentes sobre el asturiano en las materias de Lengua Castellana y Literatura, Cultura Clásica y Latín para Educación Secundaria Obligatoria y Bachillerato. En esta primera parte se recopilan todos aquellos contenidos curriculares referidos a la lengua asturiana. Una segunda parte está compuesta por el estudio de datos. En ella se ofrece un resumen estadístico del tratamiento que recibe la lengua asturiana en los libros de texto en cuanto a su denominación, su ámbito geográfico, su descripción lingüística e histórica, la aparición de ejemplos y ejercicios y el tratamiento de la literatura en asturiano. La tercera parte plantea un conjunto de conclusiones sobre la coherencia entre la información que aparece en los libros de texto y las exigencias de los currículos oficiales y las bases legales que promueven la difusión y el conocimiento de la lengua asturiana. Para la toma de datos se diseña una ficha de referencia que sirve para unificar los criterios de análisis. El tipo de datos que se extraen responden a una doble determinación; por un lado, a las exigencias que se imponen en los documentos curriculares de la región y, por otro, la denominación, la cartografía, la descripción lingüística y la ejemplificación de esa lengua. A) La práctica totalidad de los manuales han optado por una interpretación restrictiva de la legislación. La mención expresa de la lengua asturiana en los decretos obliga a que los libros de texto, en su mayoría, planteen la situación lingüística asturiana dentro de la realidad plurilingüe de España. Sin embargo, cuando lo hacen, presentan esa situación desde una perspectiva histórica que, si bien puede tener su valor y su fundamento dentro del conjunto de contenidos que se exigen, se encuentra totalmente alejada de la realidad actual. B) El conjunto de los libros de texto no sigue la pauta que marca la redacción del currículo del Principado de Asturias en lo que se refiere a la denominación de la lengua asturiana, asturiano o bable. C) En el tratamiento cartográfico los libros de texto incumplen las prescripciones del currículo determinado para Asturias. D) Los escasos ejercicios que aparecen en los manuales no están planteados específicamente para la lengua asturiana: lenguas del Estado Español, 'historia de la lengua que hablas', dialectos latinos en el norte peninsular, toponimia local y patronímicos y topónimos prerrománicos. E) Escasas alusiones a la geografía lingüística, ya sea de época medieval ya sea referida a la actualidad. F) Ninguno de los textos alude a la literatura en asturiano ni a la literatura que refleja la situación cultural de Asturias. G) Solo dos editoriales ofertan monográficos o suplementos específicos para Asturias con objeto de complementar sus libros de texto y adaptarlos a los contenidos del currículo del Principado de Asturias.
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Desde el Centro de Apoyo y Recursos de Vegadeo se propone un proyecto de estudio de un mazo, instalación complementaria de la ferrería, que constituye la industria artesanal del hierro, habitual en el occidente asturiano en el siglo XIX, caracterizado por el aprovechamiento de la energia hidráulica, para este sector metalúrgico como en el textil y alimenticio. Presenta un amplio material gráfico: dibujos, esquemas, planos, fotografias, diapositivas,..que documentan la introducción histórica, así como el estudio de recuperación. Enmarcadas en el área curricular 'Conocimiento del Medio' se proponen bloques relativos al paisaje, medio físico, materiales y sus propiedades, población y actividades humanas, máquinas y aparatos, cambios históricos y la historia reciente, formas de vida y paisajes históricos.
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Integrar al alumno dentro de su entorno a partir de su comprensión de esa realidad cercana -turismo en Nerja-. Fomentar la participación activa y el diálogo a fin de que los alumnos se autoresponsabilicen de su medio colaborando en su mejora. Desarrollar una conciencia crítica que pueda servirle en su desarrollo humano y social. Segundo curso de BUP del Instituto 'Ntra. Sra. de las Angustias' de Nerja. 79 alumnos y alumnas. Fase de descripción y observación de fenómenos. Fase de comprensión, causa de los fenómenos, síntesis, análisis, etc. Generalizaciones que conllevan una toma de decisiones y afrontar problemas ofreciendo alternativas. Mapas topográficos y planos urbanos. Datos de temperatura y precipitaciones. Mapas de distribución de la vegetación en la provincia y Andalucía. Diapositivas, transparencias y textos diversos. Cuestionarios. Desarrollo y análisis del temario de Geografía de la Población y Geografía Agraria. Utilizan conceptos, observaciones, ejercicios de síntesis y finalizan los alumnos creando hipótesis. Llegan al modelo de ciudad ideal para Nerja con el fin de llevar la propuesta al Ayuntamiento y abrir un proceso donde las Instituciones Educativas puedan insertarse en los problemas del Municipio.
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Seleccionado en la convocatoria: Concurso de proyectos de cooperación en materia de investigación entre departamentos universitarios y departamentos de Institutos de Educación Secundaria o equipos de personal docente, Gobierno de Aragón 2010-11
Resumo:
Reproductive morphology of the Mediterranean red alga Kallymenia patens is described for the first time, confirming its position in the genus. K. patens is characterized by a non-procarpic female reproductive apparatus, carpogonial branch systems consisting of supporting cells bearing both three-celled carpogonial branches and subsidiary cells that lack a hypogynous cell and carpogonium; fusion cells develop numerous connecting filaments, and tetrasporangia are scattered over the thallus and are probably cruciately divided. Old fertile spathulate specimens of K. patens are morphologically similar to K. spathulata, but they can be distinguished by the length of spathulated proliferations (up to 0.6 cm and 6 cm, respectively), the length of inner cortical cells (up to 70 and 30 μm, respectively), and the gonimoblast location (in proliferations from the perennial part of the blade and over all the thallus surface, respectively)
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Legatto Vocal es una banda vocal a capella con diez años de existencia, tiempo durante el cual no ha encontrado sostenibilidad económica para desarrollar su empresa cultural, por esta razón se busca reflexionar sobre herramientas de gestión y mercado que posibiliten hacer sostenible el proyecto Legatto Vocal banda vocal a capella en la industria de la música.