978 resultados para temperatura, ozono, clima, aria, scenario


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Tesis (Doctorado en Ciencias con Especialidad en Microbiología) UANL

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Tesis (Doctorado en Medicina) UANL

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Tesis (Doctor en Ingeniería de Materiales) U.A.N.L.

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Tesis ( Doctor en Manejo de Recursos Naturales) U.A.N.L.

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Tesis (Doctor en Ingeniería de Materiales) UANL, 2014.

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Indian economy is witnessing stellar growth over the last few years. There have been rapid developments in infrastructural and business front during the growth period.Internet adoption among Indians has been increasing over the last one decade.Indian banks have also risen to the occasion by offering new channels of delivery to their customers.Internet banking is one such new channel which has become available to Indian customers.Customer acceptance for internet banking has been good so far.In this study the researcher tried to conduct a qualitative and quantitative investigation of internet banking customer acceptance among Indians. The researcher tried to identify important factors that affect customer's behavioral intention for internet banking .The researcher also proposes a research model which has extended from Technology Acceptance Model for predicting internet banking acceptance.The findings of the study would be useful for Indian banks in planning and upgrading their internet banking service.Banks could increase internet banking adoption by making their customer awareness about the usefulness of the service.It is seen that from the study that the variable perceived usefulness has a positive influence on internet banking use,therefore internet banking acceptance would increase when customers find it more usefulness.Banks should plan their marketing campaigns taking into consideration this factor.Proper marketing communications which would increase consumer awareness would result in better acceptance of internet banking.The variable perceived ease of use had a positive influence on internet banking use.That means customers would increase internet banking usage when they find it easier to use.Banks should therefore try to develop their internet banking site and interface easier to use.Banks could also consider providing practical training sessions for customers at their branches on usage of internet banking interface.

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The paper ‘Impact of Quality on Ethics and Social Responsibility in Marketing in Industries in Kerala in the present Indian scenario’ highlights the observations, based on a descriptive research carried out in five leading industries in Kerala, in the private and public sector. Ethics and social responsibilities, practiced in these industries, are reflected in the results of the survey conducted on specific queries like awareness of products/services provided by them, total understanding of the requirements of the customer, open discussion on technical matters, accountability of employees to the society and social needs, consumer ethics vis a vis business ethics etc. Team working goes a long way, in building relations, which in turn, results in a progressive and effective marketing strategy. This assumes paramount importance, considering the severe competition we are facing in the light of liberalization, privatization and globalization, which encompasses the globe. The prediction of India becoming a lead nation, along with USA, China and Japan, in this decade, can get fructified only if we follow a very high standards of ethics and social responsibility, in all domains including marketing. Organizations like TRW.Rane, Sundaram Fasteners, TVS Motors, in Chennai are a few among others in India, who have achieved the highest distinction in quality viz Deming Prize, and these demonstrate their commitment to quality, society and humanity at large. Cost effectiveness, without jeopardizing quality has become the need of the hour and MRTP has become history. This trait is being brought out through the survey and the results speak for themselves. Unethical practices like switch and bait, not only brings shame to the organization, and country but also results in the company getting wiped out from the market. Adherence to standards like ISO 14000 helps to maintain the minimum level of social responsibility and environmental friendliness. Like quality audit, safety audit etc, social audit is being insisted in all progressive countries to ensure that the organization comply with the minimum statutory requirements. The paper also touches upon Corporate Social Responsibility practiced in the industries and this becomes crystal clear through their commitment to improve the community. Green Marketing lays a lot of importance on the three Rs of environmentalism viz Reduce, Reuse and Recycle. The objective of any business is to achieve optimal profit and this is possible only by reducing the cost as well as waste. In this context, management tools like brainstorming, suggestion schemes, benchmarking etc becomes helpful. These characteristics are brought out through the analysis of survey results. The conclusions drawn throw a lot of information on the desirable practices with respect to Ethics and Social Responsibility in Marketing

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Cochin estuarine system is among the most productive aquatic environment along the Southwest coast of India, exhibits unique ecological features and possess greater socioeconomic relevance. Serious investigations carried out during the past decades on the hydro biogeochemical variables pointed out variations in the health and ecological functioning of this ecosystem. Characterisation of organic matter in the estuary has been attempted in many investigations. But detailed studies covering the degradation state of organic matter using molecular level approach is not attempted. The thesis entitled Provenance, Isolation and Characterisation of Organic Matter in the Cochin Estuarine Sediment-“ A Diagenetic Amino Acid Marker Scenario” is an integrated approach to evaluate the source, quantity, quality, and degradation state of the organic matter in the surface sediments of Cochin estuarine system with the combined application of bulk and molecular level tools. Sediment and water samples from nine stations situated at Cochin estuary were collected in five seasonal sampling campaigns, for the biogeochemical assessment and their distribution pattern of sedimentary organic matter. The sampling seasons were described and abbreviated as follows: April- 2009 (pre monsoon: PRM09), August-2009 (monsoon: MON09), January-2010 (post monsoon: POM09), April-2010 (pre monsoon: PRM10) and September- 2012 (monsoon: MON12). In order to evaluate the general environmental conditions of the estuary, water samples were analysed for water quality parameters, chlorophyll pigments and nutrients by standard methods. Investigations suggested the fact that hydrographical variables and nutrients in Cochin estuary supports diverse species of flora and fauna. Moreover the sedimentary variables such as pH, Eh, texture, TOC, fractions of nitrogen and phosphorous were determined to assess the general geochemical setting as well as redox status. The periodically fluctuating oxic/ anoxic conditions and texture serve as the most significant variables controlling other variables of the aquatic environment. The organic matter in estuary comprise of a complex mixture of autochthonous as well as allochthonous materials. Autochthonous input is limited or enhanced by the nutrient elements like N and P (in their various fractions), used as a tool to evaluate their bioavailability. Bulk parameter approach like biochemical composition, stoichiometric elemental ratios and stable carbon isotope ratio was also employed to assess the quality and quantity of sedimentary organic matter in the study area. Molecular level charactersation of free sugars and amino acids were carried out by liquid chromatographic techniques. Carbohydrates are the products of primary production and their occurrence in sediments as free sugars can provide information on the estuarine productivity. Amino acid biogeochemistry provided implications on the system productivity, nature of organic matter as well as degradation status of the sedimentary organic matter in the study area. The predominance of carbohydrates over protein indicated faster mineralisation of proteinaceous organic matter in sediments and the estuary behaves as a detrital trap for the accumulation of aged organic matter. The higher lipid content and LPD/CHO ratio pointed towards the better food quality that supports benthic fauna and better accumulation of lipid compounds in the sedimentary environment. Allochthonous addition of carbohydrates via terrestrial run off was responsible for the lower PRT/CHO ratio estimated in thesediments and the lower ratios also denoted a detrital heterotrophic environment. Biopolymeric carbon and the algal contribution to BPC provided important information on the better understanding the trophic state of the estuarine system and the higher values of chlorophyll-a to phaeophytin ratio indicated deposition of phytoplankton to sediment at a rapid rate. The estimated TOC/TN ratios implied the combined input of both terrestrial and autochthonous organic matter to sedimentsAmong the free sugars, depleted levels of glucose in sediments in most of the stations and abundance of mannose at station S5 was observed during the present investigation. Among aldohexoses, concentration of galactose was found to be higher in most of the stationsRelative abundance of AAs in the estuarine sediments based on seasons followed the trend: PRM09-Leucine > Phenylalanine > Argine > Lysine, MON09-Lysine > Aspartic acid > Histidine > Tyrosine > Phenylalanine, POM09-Lysine > Histadine > Phenyalanine > Leucine > Methionine > Serine > Proline > Aspartic acid, PRM10-Valine > Aspartic acid > Histidine > Phenylalanine > Serine > Proline, MON12-Lysine > Phenylalanine > Aspartic acid > Histidine > Valine > Tyrsine > MethionineThe classification of study area into three zones based on salinity was employed in the present study for the sake of simplicity and generalized interpretations. The distribution of AAs in the three zones followed the trend: Fresh water zone (S1, S2):- Phenylalanine > Lysine > Aspartic acid > Methionine > Valine ῀ Leucine > Proline > Histidine > Glycine > Serine > Glutamic acid > Tyrosine > Arginine > Alanine > Threonine > Cysteine > Isoleucine. Estuarine zone (S3, S4, S5, S6):- Lysine > Aspartic acid > Phenylalanine > Leucine > Valine > Histidine > Methionine > Tyrosine > Serine > Glutamic acid > Proline > Glycine > Arginine > Alanine > Isoleucine > Cysteine > Threonine. Riverine /Industrial zone (S7, S8, S9):- Phenylalanine > Lysine > Aspartic acid > Histidine > Serine > Arginine > Tyrosine > Leucine > Methionine > Glutamic acid > Alanine > Glycine > Cysteine > Proline > Isoleucine > Threonine > Valine. The abundance of AAs like glutamic acid, aspartic acid, isoleucine, valine, tyrosine, and phenylalanine in sediments of the study area indicated freshly derived organic matter.

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El cuaderno de trabajo sirve como punto de partida para salidas de campo, peque??as investigaciones y experiencias de campo diversas dirigidas a alumnos de octavo de EGB. Contiene informaci??n acerca del clima en la Comarca del Mar Menor. En ??ste se proponen actividades de investigaci??n sobre el clima y los factores que influyen en el mismo (altitud, situaci??n geogr??fica, precipitaciones, etc.). El cuaderno incluye propuestas de actividades concretas para la construcci??n de determinados instrumentos: veleta, pulsi??metro, garita meteorol??gica. Como informaci??n complementaria se incluye una tabla de datos meteorol??gicos de la comarca durante un a??o, as?? como la identificaci??n de los vientos seg??n observaciones realizadas en tierra y mar.

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Identificar en dos muestras de población escolar urbana de Asturias, una perteneciente a colegios públicos, y otra perteneciente a colegios privados, si existen distintas tipologías de 'climas sociales en el aula', a partir de las percepciones de los alumnos, y si hay diferencias entre los centros públicos y los privados. 575 Sujetos, 200 alumnos de colegios públicos y 375 de colegios privados. Se trata de sujetos de ambos sexos, con edades entre 13 y 14 años, pertenecientes a un nivel de 8 de EGB de Avilés, Gijon y Oviedo. Variables independientes: implicación, afiliación, ayuda, tarea, competitividad, organización, claridad, control e innovación. Variables moduladoras: pertenencia por parte de los alumnos a colegios públicos o privados. Escala de clima social (ces), creada por r.H. Moos y cols.. Análisis de conglomerados cluster K-means, un tipo de análisis de cluster no jerárquico. Con este método se divide un conjunto de individuos en conglomerados, de tal forma que, al final del proceso, cada caso pertenece al cluster cuyo centro está más cercano a él. El centro del cluster viene dado por la media de los individuos que forman cada variable. Del análisis de variables que intervienen en la percepción del clima social escolar, se observan diferencias entre colegios públicos y privados, en lo que respecta a las variables de ayuda, tarea, organización e innovación. En relación a las otras cinco variables, afiliación, implicación, competitividad, claridad y control, las diferencias entre una muestra y otra son inexistentes. A la hora de estudiar cada uno de los cluster, se tiene en cuenta la reestructuración realizada tanto en la muestra de colegios públicos como privados. En la muestra de colegios privados destacan tres tipologías de climas: un clima afectivo percibido por un 50 por ciento de la población; un clima conservador y autoritario percibido por casi un 40 por ciento de los estudiantes; un clima estructurado percibido por un 10 por ciento aproximadamente. En la muestra de alumnos pertenecientes a colegios públicos, se encuentran cuatro tipos de climas: un clima afectivo percibido por un 32 por ciento de la población; un clima afectivo y no participativo, detectado por un 27 por ciento de los estudiantes; un clima autoritario percibido por un 26,5 por ciento de la muestra; un clima centrado en la organización y el esfuerzo, percibido por un 14,5 por ciento de la población. El hecho de que los estudiantes de colegios públicos o privados, perciban un determinado tipo de clima, está muy relacionado con la figura del profesor-tutor. El funcionamiento de la clase depende de las características de éste, que aunque revelen los canones de la institución, tienen una huella personal. Para evaluar la percepción del clima escolar, a las variables analizadas, habría que añadir la personalidad del profesor, lo que no descartan realizar en una posterior investigación.

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Determinar las relaciones entre el clima motivacional, la orientación de meta, la motivación intrínseca, la autoconfianza, la ansiedad y el estado de ánimo de jóvenes deportistas antes y después de una competición. 115 deportistas cadetes y juveniles de cinco clubes de balonmano del norte de España con edades comprendidas entre los 14 y los 18 años (22 mujeres y 93 varones). Aplicación de una serie de cuestionarios antes y después de una actividad física de competición. Los instrumentos utilizados fueron: a) Para medir las percepciones del clima motivacional fue utilizado el Cuestionario 2 del Clima Motivacional Percibido en el Deporte (PMCSQ-2). Esta escala está constituida por dos factores de segundo orden denominados Maestría y Ejecución, y seis de primer orden. La validez factorial es examinada utilizando el análisis factorial confirmatorio; b) Para evaluar las disposiciones de meta de logro personal fue utilizado el Cuestionario de Percepción de Éxito (POSQ), escala compuesta por 12 ítems: 6 de implicación en la tarea y 6 de implicación en el yo; c) Para determinar el grado de divertimento se utiliza el Cuestionario de Diversión de los sujetos con la Practica Deportiva (CDPD), compuesto por 8 ítems agrupados en dos factores: aburrimiento y diversión; d) Para medir el compromiso y la entrega personal, la competencia motriz percibida, la ansiedad ante el error y las situaciones que producen estrés en las clases de Educación Física se maneja el Test de Motivación de Logro en Educación Física (MEF). Cuestionario de 21 ítems dividido en tres subescalas: 8 de compromiso y entrega al trabajo, 4 de competencia motriz percibida y 9 de ansiedad ente el error y las situaciones que producen estrés; e) Para medir la ansiedad y la auto-confianza previas a la competición se utiliza el CSAI (Competitive State Anxiety Inventory), escala compuesta por 27 ítems divididos en tres subescalas: 9 de ansiedad cognitiva, 9 de ansiedad somática y 9 de auto-confianza; f) Para medir el estado de ánimo pre y post-competitivo se aplica el Perfil de estado de Ánimo (POMS): hostilidad, depresión, vigor, fatiga y tensión. a) Los balonmanistas que perciben un clima de entrenamiento más alto en la orientación a la maestría muestran un nivel superior de orientación a la tarea; b) Los balonmanistas que perciben un clima de entrenamiento alto en la orientación a la ejecución muestran un nivel superior de orientación al ego; c) En los momentos previos a la competencia existe un mayor sentimiento de competencia y mayor depresión post-competitiva. Puede concluirse que: a) El entrenador puede incidir favorablemente en la motivación intrínseca, la auto-confianza y el estado de ánimo de sus alumnos antes y después de la participación en una competición deportiva; b) Los deportistas cuya práctica deportiva se encuentra dentro de un contexto de implicación en el yo generan expectativas relacionadas con la victoria en la competición, ser el mejor y derrotar a los demás, mientras que por el contrario, los deportistas que se forman en un clima de implicación en la tarea evalúan su participación en el encuentro deportivo no en función de los resultados objetivos de la competición, sino que su concepción del éxito se basa en parámetros como su actitud personal, el esfuerzo, la entrega y la mejora; c) Por norma general, las experiencias de maestría proporcionan a los individuos orientados a la tarea mayores sentimientos de satisfacción; d) El clima de maestría es más probable que facilite patrones adaptativos, cognitivos y afectivos en el deporte competitivo en edad cadete y juvenil; e) Se acepta la hipótesis de que la orientación de meta puede reconstruirse por las intervenciones o por las influencias ambientales.