Obiettivo di questo lavoro è definire il processo di interazione con la televisione digitale terrestre secondo una prospettiva psicosociale, che tenga conto delle e modalità di rappresentazione e fruizione della stessa da parte degli utenti e degli esperti del settore. Dal materiale prodotto (interviste agli utenti e analisi della Prima Conferenza Nazionale sulla DTT) emerge una diversità tra i due punti di vista: i telespettatori mostrano di essere ancora legati ad una fruizione tradizionale del medium televisivo, mentre gli esperti ritengono che il digitale sia un prodotto per la massa, in grado di rispondere al bisogno di ascolto e di partecipazione che gli spettatori manifestano. / Aim of this work is to define the process of interaction with the DTT according to a psychosocial perspective, taking into account its representation and fruition, from part of the users and the experts of the field. From the data collected (interviews to DTT users and analysis of the First National Conference on DTT) a difference rises between the comparison of the two points of view: the televiewers seem to be still bound to a traditional fruition of the medium; but regarding the experts' representations the digital is thought as a product for the mass that at the same time can answer to that need of participation the televiewers show.

Background: The needs of the consumers seem to develop at the same rate as the technology advancements and put more pressure on firms to produce new and innovative products at a faster pace. Research has shown that external sources can have a significant effect on the firms’ innovation performance, but the results are partial contradicting and more research is needed. Purpose: Investigate customer and supplier involvement in product innovation in Swedish manufacturing firms. Delimitations: The study was carried out to manufacturing firms in Sweden, as Swedish firms are the most innovative in Europe at this point in time. Only large and medium sized firms were under investigation as larger firms are more eager to innovate than smaller firms. Method: The research had a deductive quantitative approach. The data was collected through a questionnaire sent out by e-mail and 124 firms participated in the study. After assessing validity and reliability, the hypotheses were tested by multiple and single regression analysis. Conclusions: Firms that strives to improve their new product development process should seize their customer’s knowledge and use it to co-develop new products. Another important factor was to use lead users, as these will improve the innovativeness even more than “ordinary” customers. The study found no support for early supplier integration in the new product development process.

Presentación El siguiente trabajo es un ejercicio reflexivo sobre una experiencia própia: Un estudio etnográfico sobre usuarios/as de heroína realizado en un barrio de Barcelona entre los años 1993-1995. Todo empezó dos años después de escribir la etnografía, al decidir regresar al barrio para explicar a los participantes el trabajo que había escrito sobre aquella experiencia. En esos momentos tomé la decisión de realizar un estudio sobre el papel que yo había desarrollado durante todo el trabajo de campo con esas personas, cómo me había influido, como les había influido, por qué había relatado aquellas cosas sobre sus vidas, qué efectos provocaba lo escrito a posibles lectores, etc. Y así surgió el tema de esta tesis. ObjetivosEn este trabajo me propongo ponerme al lado de los datos que en otro momento recogí y comenzar a analizarlos a la luz de potentes teorías y presupuestos -principalmente de la psicología social-. He tratado de "hacer" un ejercicio reflexivo sobre un caso, una experiencia científica en la qué "yo" he estado implicada. El objetivo fundamental es mostrar en qué consiste una práctica reflexiva, entendida como una forma de hacer "objetivable" el conocimiento (aspecto que correspondería a una dimensión racional- epistemológica), y también entendida como una forma de encontrar resistencias a discursos dominantes en el conocimiento psicosocial (aspecto que correspondería a una dimensión ético-política). Como objetivos específicos me propongo: -señalar un procedimiento que permita conectar al auditorio o lectores con la experiencia particular de la investigadora -cuestionar mi propia práctica de producción de conocimiento psicosocial -explorar los "yoes" o subjetividades en el proceso investigador Marco teórico y metodología He definido un tipo de práctica reflexiva tomando una perspectiva construccionista crítica localizada en la posición del observador/a, donde el valor de la reflexividad, más que instrumento de comprensión o validación, es un instrumento de cambio. Procederé a través del análisis del discurso de mi práctica social o experiencia de conocimiento científico, junto con conceptos provenientes de la etnometodología, interaccionismo simbólico y fenomenología. Los métodos han sido la etnografía de laboratorio (basada en Latour y Woolgar), la descripción etnometodológica (de Potter) y el análisis discursivo (los repertorios interpretativos de Potter y Wheterell, y las formaciones discursivas basadas en Foucault). Mis datos han sido 44 entrevistas en profundidad, a modo de conversaciones con los usuarios y no usuarios significativos en aquel contexto de observación. Casi todas transcritas. Y 5 libretas con notas de campo tomadas durante la observación participante en las que constaban multitud de comentarios personales, interpretaciones sobre el tema y situaciones compartidas entre ellos y "yo". Resultados y discusión Como resultado del análisis del discurso he encontrado la confrontación entre formaciones discursivas "naturalizadoras" y "sociologizadoras", acentuando mucho más en mis datos la formación "sociologizadora" (cuestiones legales, relacionales, culturales, etc.), que "naturalizadora" (cuestiones sensoriales, farmacológicas, psicológicas, fisiológicas, etc.). Este dialogismo entre unas y otras formaciones permite tomar consciencia de formas de acción que no son demasiado relevantes en un contexto sociohistórico dado, pero si se activan o "actúan" en contextos específicos de acción donde las personas tienen capacidad agéntica. La observación participante ha sido fundamental para contextualizar los datos, construidos en su "contexto cotidiano de acción", además, ha dado sentido a las conversaciones y a las entrevistas en profundidad. El procedimiento empleado, conforma un tipo de modelo que pone en relación di versos constructos: contexto discursivo (o interactivo), posición discursiva y formaciones discursivas, y que se articulan alrededor de un espacio intersubjetivo "yo-alter" que es lo que constituye la unidad básica donde opera la reflexividad. Se construyen distintos "yoes" en cada momento y trayectoria de la experiencia relatada. Al introducir el "yo" en el trabajo de campo (tanto el mío como el de alter), provoco una problematización de los datos y a la vez, me obliga a reconceptualizar ese "yo" o "yoes" y resignificar esos datos. Se me plantea mi condición de liminalidad (o de otra manera, decir que no estoy ni dentro ni fuera de la cultura que estudio), donde los contornos de mi identidad se subvierten y donde la condición de ser, es que ninguna subjetividad es permanente. Mi aproximación a "alter" supone una continuidad entre "yo-alter" y en ocasiones resulta amenazante, en la medida en que se confunden los límites y se difuminan con el fin de conseguir una "experiencia empática". Pero no se trataría tanto de una fusión "yo-alter", de manera que sería una dilución de ambos, sino de una permeabilidad de los límites, originando así, un espacio potencial para crear, para conectar y donde se resuelva la tendencia a controlar o contener un "yo" al otro. ConclusionesLa posibilidad de la práctica reflexiva está en el espacio intersubjetivo "yo-alter". Mi intento de conexión con "alter" me constituye temporalmente en mediadora: "estar en medio de". Esto significa: l-socavar los cimientos y el orden construido, a través de buscar fisuras, inconsistencias y contradicciones en los discursos manejados, a partir de las cuales hay potenciales trayectos que no se han producido, 2-incorporar diferentes voces o dialogismo en la historia que cuento y no un monólogo de la autora, sino una participación de alternativas posibles y espacios de enunciación, junto con las subjetividades emergentes. Para ello, dos condiciones son ineludibles: -la agentividad para subvertir lo establecido, las identidades -el recuperar contextos que sean potencialmente relevantes para actuar discursos. Considerar las subjetividades también es la manera de tener a "alter" presente. "Alter" se comprende en "mi" a través de un trayecto en el que se marcan las afinidades mutuas y no tanto las identidades, en el que "representar" a "alter" es trazar un trayecto de conocimiento local y situado (como apunta Haraway), pues sólo así es posible generar una praxis transformadora fiel a la parcialidad. / AN ETHNOGRAPHIC STUDY ON HEROIN USERS. Psycho-social Knowledge and Reflexive Practice This study is a reflexive exercise based on own experience: an ethnographic study of heroin users carried out in a Barcelona city neighbourhood between 1993 to 1995. The aim was to analyse data collected using social psychology theoretic perspectives. I will try to demonstrate what reflexive practice is, understood both as a way of making knowledge "objectivable" (rational-epistemological issues), as well as a way of finding resistance to dominant discourses in psychosocial knowledge (ethical-political issues). The specific aims are: -to indicate a procedure that would approximate the audience or reader with the particular experience of the researcher, -to criticise my own production practice of psycho-social knowledge, -to explore the "self" o subjectivity in the research process. The methods used were: laboratory ethnography (Latour and Woolgar), ethno-methodological description (Potter), discursive analysis (Potter and Wheterell) and discursive training (Foucault). I have carried out 44 interviews and employed 5 fieldwork research reports. In the procedure used, I have linked: discursive context, position and discursive training. These elements are articulated around an "alter-self" inter-subjective space, constituting the basic unit out of which reflexivity operates. In my narrative, "sociologising" training discourses (i.e. legal, relational, cultural matters etc.) have predominated over those which are "naturalising" (i.e. sensorial, pharmacological, psychological matters etc.). Different "self" are formed at every moment and throughout the development of the narrated experience. By introducing the "self" in the tieldwork (both the "self" as well as the "alter"), I introduce a problemising of the data. At the same time, I reconceptualise the "self" and resignify the data. In conclusion, it is worth pointing out that the possibility of reflexive practice is on the "alter-self" intersubjective space, and my attempt to connect with the "alter", temporarily makes me a "mediator". This means: -undermining the foundations and the order built, by searching for weaknesses and inconsistencies in discourses. Starting from this generates ways that had not been made. -Incorporating different voices o dialogisms in the history, together with emerging subjectivities. Two conditions are unavoidable: - the agentivity for subverting what is established, the identities, - to recuperate contexts which are potentially relevant for carrying out discourses.

Gender differences in labor markets and within households have been investigated by researchers for a long time. This dissertation adds new findings to the body of gender-related empirical studies on labor markets and demographic decisions. The first essay deals with the firm size selection behavior of workers and the firms' employment patterns by size in the United States. Using the Current Population Survey, I find that the changes in firm size distribution show different trends by gender between 1987 and 2001. While the percentage of female workers in large firms has increased gradually, that of male workers has hardly changed over time. These trends are not explained by changes in the distribution of demographic and job characteristics alone. I also find that the gender gaps in size-wage premia of workers in large firms decline over the period studied. Using these results, I show that gender wage convergence is partly accounted for by the changes in size distribution and size premia. The second essay examines how internet use affects job search and match outcomes of young workers in South Korea. Using the Youth Panel surveyed in 2001, I find that workers successfully employed through internet search have a significant wage premium over those employed through traditional methods, except for referrals or social networks. The positive wage effect is pronounced among women and previously unemployed workers. I also find that new employees who have ever searched online for jobs are more likely to search for other jobs. The third essay focuses on an idiosyncratic social norm and its effects on demographic outcomes. South Koreans have traditionally considered that the year of the Horse bears inauspicious implications for the birth of daughters. Using monthly longitudinal data at the region level between 1970 and 2003, I find that in the year of the Horse, the sex ratio at birth significantly increases while fertility decreases. The last essay examines how family cultural values, proxied by lunar calendar use for birthday, affect young individuals' marriage and fertility decisions in South Korea. Employing the Youth Panel, I find that young people with lunar birthdays, regardless of gender, are more likely to be married. More interestingly, young married men with lunar birthdays are more likely to have children, while young married women are not influenced by the tradition. These results are consistent with the hypotheses that young men from more traditional families enter into early marriages and that they are more likely to have offspring at earlier ages. / text

From the Proceedings of the 1971 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 22-23, 1971, Tempe, Arizona / In the semiarid southwestern U.S. where competition for water is fierce between competing users, no regional agency controls water allocation, and as a result, much court litigation ensues. This paper attempts to develop a model for optimal allocation of water resources and to apply the model to a specific case study. In November 1969, the largest farming interest in the Sahuarita-continental area near Tucson filed a court suit seeking first to reduce the amount of groundwater used by 4 nearby copper mines, and then to allocate the water more evenly among various interests in the area. The farming interest maintained that the mines' drawdown on the groundwater table would soon deplete the supply to the point where agriculture would become impossible. The model utilizes the concept of collective utility which postulates the existence of an economic decision maker (edp). To get around the problem of determination of net revenue functions, the theory compares the relative desirability of neighboring economic states. The edp has the power to impose groundwater-use taxes in such a way as to maximize overall growth of collective utility in the Sahuarita-continental area, taking into account the externalities of the resource consumption. The mathematical analysis is presented in detail.

From the Proceedings of the 1971 Meetings of the Arizona Section - American Water Resources Assn. and the Hydrology Section - Arizona Academy of Science - April 22-23, 1971, Tempe, Arizona / The early Spanish explorers did not lean toward rivers and boats. Bred in the culture of an arid land, they naturally explored with horses or by foot, leaving boats and rafts to the English and French. No historical records reveal any Spanish desires or attempts to control river flow or harness desert water resources on any appreciable scale. Yet they transformed the Sonoran desert into a productive garden land never before achieved by indigenous peoples. Pueblos were built on river banks where alluvial fans could be easily irrigated. Small arroyo check dams diverted water into wells and town tanks, while larger diversion dams were built to draw water into canals for crop irrigation. The dams were designedly weak and efficient only to the point of diverting sufficient water for the pueblo. There is no concept of storing water in reservoirs or lakes for periods of scarcity, but only of tapping enough water during periods of excess flow. All surplus water was allowed to flow downstream for the use of others in their struggle for survival. In this way the Spanish achieved a balance between human needs and the limited resources of the desert. The records of the Mexicans and the Anglos have been much more exploitive and destructive.

This thesis examines product innovation processes in small established enterprises. The research questions are: (1) what motivates small established enterprises to innovate, (2) how do small established enterprises perform product innovation, and (3) how do small established enterprises manage resource scarcity in their product innovation processes? To answer the research questions, a multiple case study approach was chosen with three small established enterprises as cases and different product innovation processes as embedded units of study. The data collection method used was observation during a period of five months, complemented by interviews and secondary data. Product innovation in small established enterprises seems to be motivated by solving existing customers’ problems and the need for a sustained steady cash flow. A steady cash flow is also found to be a prerequisite during the product innovation processes. Product innovation seems to occur when there is a risk of decreased cash flow and/or when existing customers can be satisfied with new products that increase their loyalty so as to secure future sales, cash flow, and the enterprise’s survival in the long run. Promising innovation ideas alone do not result in product innovation. An innovation idea must also have supportive existing customers for product innovation to occur. Product innovation processes in the studied small established enterprises are found highly context dependent, intertwined in operational processes and made possible by a small organic organization and closeness to existing customers. The product innovation processes are further found to follow a flexible and informal overall scheme optimized for decreasing market and technology uncertainty and risk, dealing with resource scarcity, and facilitating fast and easy commercialization to avoid or moderate dips in cash flow. The design processes within the innovation processes can be linearly structured or cyclical and experimental, depending on the experienced novelty. To manage resource scarcity during the product innovation processes, the studied small enterprises used many different bootstrapping methods in combination. These methods can be divided into three categories according to their overall functions: for using existing resources more efficiently, for increasing resources and to secure a fast payback on resources invested in NPD. The studied small enterprises were due to their resource scarcity further found to favor an innovation strategy, only involving new products done with known technology and targeting existing markets. This way to innovate, which creates new products in a resource-efficient way that are accepted by the enterprises’ existing markets, seems to prevent unsuccessful product innovation, while at the same time excluding technologically radical innovation and innovation targeting new markets. / <p>QC 20140102</p>

Cette recherche vise à étudier l'efficacité des cours d'espagnol comme langue étrangère, à partir de la perception des étudiants d’espagnol comme langue d’origine. Pour atteindre les résultats et les conclusions obtenus, cette étude qualitative compte sur la participation des répondants hispaniques qui ont appris l'espagnol à la maison, à l'école primaire, au secondaire, au cégep et/ou au collège. Les participants ont répondu à un questionnaire qui leur a permis d'exprimer leur perception à l'égard des cours d’espagnol comme langue étrangère qu'ils ont pris au cours de leur étude primaire, secondaire ou supérieure. Les résultats de cette recherche indiquent que les élèves hispaniques ne sont pas intégrés dans les classes ELE, ce qui motive les participants à poursuivre l’étude de la langue espagnole. Comme expliqué par Gardner (1985) dans sa théorie du modèle socio-éducationnel, l’acquisition des langages intervient dans un contexte culturel spécifique et elle est influencée par la croyance populaire et les différences individuelles. Ces dernières sont intégrées dans le concept du motif d'intégration, qui est composé du sens de l'intégration, de l'attitude envers la situation d'apprentissage et de la motivation. Les réponses données par les participants dans cette étude peuvent être utiles à la conception et au développement de cours et de méthodes d’apprentissage de l’espagnol pour les hispanophones d’origine. En tenant compte de leurs points de vue, les étudiantes auraient un sens plus élevé de l’intégration, ce qui influence directement leur motivation et par le fait même leur processus d’apprentissage. / The purpose of this research is to study the efficiency of Spanish courses from a Heritage Learner’s perspective. This qualitative study examines Hispanics who have learned Spanish at home, in elementary school, in high school, in CEGEP and/or in university. The participants answered a questionnaire that allowed them to express their perception of the Spanish courses that they had taken in their past. The results of this research indicate that L1/L2 users are not integrated in the Spanish classes. Participants demonstrate a reduced sense of motivation for the continuation of these types of courses. Gardner (1985) explains in his socio-educational model theory that language acquisition occurs in a specific cultural context and is influenced by cultural beliefs and individual differences. The latter are integrated in the concept of integrative motive, which is composed of the integrativeness, the attitude toward the learning situation and motivation. The answers given by the participants of this study may be of great help in the design and development of Spanish courses and books for L1/L2 users. By considering their views, students would have a higher sense of integration; an important factor that motivates students to pursue the study of Spanish. / Esta investigación tiene como objetivo final estudiar la eficacia de los cursos de ELE desde la percepción de los usuarios de L1/L2, o aprendices de herencia. Para llegar a los resultados y las conclusiones obtenidos, se realizó un estudio cualitativo que contó con la participación de informantes de origen hispano que han aprendido el español en casa, en la escuela primaria, en la secundaria, en el Cégep y/o en la universidad. Los participantes contestaron un cuestionario que les permitió expresar su percepción con respecto a los cursos de ELE, cursos que habían tomado durante sus estudios primarios, secundarios o superiores. Los resultados de esta investigación demuestran que los estudiantes de L1/L2 no se encuentran integrados en las clases de ELE, hecho que desmotiva a los informantes para continuar en el estudio de la lengua española. Tal y como explica Gardner (1985) en su teoría del Modelo socioeducacional, la adquisición de lenguas ocurre en un contexto cultural determinado, y está influenciada por la creencia popular y por las diferencias individuales. Estas se encuentran integradas en el concepto de motivo integrador, que está compuesto por el sentido de integración, la actitud hacia la situación de aprendizaje y la motivación. Las respuestas dadas por los informantes pueden servir de ayuda para el diseño y la creación de cursos y métodos de español destinados a usuarios de L1/L2. Al tomar en cuenta sus opiniones, los estudiantes tendrían un sentido de integración más alto, hecho que influye directamente en la motivación de los mismos y, por tanto, en su proceso de aprendizaje.

Plusieurs études ont révélé des problèmes récurrents au niveau de la performance et de la gestion des projets de reconstruction à la suite des catastrophes dans les pays en voie de développement (PEVD). Ces projets doivent faire face à des conditions de vulnérabilité des habitants, engendrées par des facteurs politiques, économiques, sociaux et culturels. Les divers participants - contraints par un accès limité à l’information - sont confrontés à travailler dans un contexte hostile ayant un niveau d’incertitude élevé. Ce niveau d’incertitude augmente les risques du projet de reconstruction, particulièrement le risque d’insatisfaction des usagers. Ce travail vise à mettre en parallèle l’analyse du système organisationnel adopté pour la conduite d’un projet de reconstruction et celle du niveau de satisfaction des usagers. Il émet l’hypothèse suivante: deux facteurs organisationnels influencent largement le niveau de satisfaction de la part des bénéficiaires d’un projet de reconstruction de logements à la suite d’un désastre en PEVD: (i) le niveau de centralisation de la prise de décisions (jumelée au manque d’information) au sein de la Multi-Organisation Temporaire (MOT); et (ii) la capacité de la structure organisationnelle de la MOT d’impliquer la participation active des usagers au niveau de la planification, de la gestion, du financement et du design du projet. Afin d’atteindre cet objectif, une recherche empirique fut menée pour analyser le cas des inondations ayant eu lieu en 2003 dans une ville dans la région du Maghreb. Le niveau de satisfaction des usagers a été déterminé grâce à des indicateurs de transfert de technologie qui se basent sur l’analyse du « Cadre Logique » - une méthode d’évaluation largement utilisée dans le domaine du développement international. Les résultats de la recherche ne visent pas à identifier une relation de cause à effet entre les deux variables étudiées (la structure organisationnelle et la satisfaction des usagers). Cependant, ils mettent en évidence certains principes du montage et de la gestion des projets qui peuvent être mis en place pour l’amélioration des pratiques de reconstruction. / Construction projects are temporary endeavors with a defined beginning and end, conducted by a temporary and multi-disciplinary team called a Temporary Multi-Organization (TMO). In the hostile environment of post-disaster reconstruction, participants of the TMO must confront high levels of uncertainty which increases project risks. The non-acceptability of project outcomes is one of the most frequent risks reported in literature (UNDRO, 1982; Barenstein, 2008; Dikmen, 2006). Acceptability is related with users’ satisfaction. However, according to the theory of bounded rationality, actors of the TMO - confronted with limited information and resources - cannot achieve an optimal solution. Instead, both project actors and end-users accept a «satisficing» [SIC] solution (Simon, 2004). This study hypothesizes that two organizational factors have an important influence on user satisfaction in post-disaster housing projects: (i) centralized decision making (coupled with lack of information); and (ii) the capacity of the structure of the Temporary Multi-Organization (TMO) to take into account the active participation of users in project planning, management, financing and design. A case study of a post-disaster housing project in the Maghreb region helps us validate this hypothesis. Building up on this hypothesis, indicators of technology transfer (as proposed by the Logical Framework Analysis) serve as a basis to assess users’ satisfaction. The research does not establish a cause-effect relationship between the two variables of the study. However, the analysis of the structure of the TMO and users’ satisfaction highlight several principles, related with the project initiation and management, that can be implemented to improve reconstruction practices in developing countries.

The discussion of introducing the Internet at St. Joseph's Theological Institute in KwaZulu-Natal, South Africa took place in 2002 and access to the Internet was introduced in 2003 via 70 computers which were housed in the library. Given that the Internet has emerged as an important learning tool at the tertiary level, the aim of the study was to investigate the use of the Internet by the students at St. Joseph's. The specific objectives of the study were as follows: to find out which students were using the Internet, to find out what students were using the Internet for, to find how often students used the Internet and when they used it, to find out the problems experienced by those students who used the Internet, to find out why certain students do not use the Internet, and lastly the study aimed to make recommendations concerning the use of the Internet by students. The survey research method was used and the data was collected through a self administered questionnaire. No sampling was done as the entire population of 188 students was surveyed. Sixty five students responded - a response rate of 34.6 %. Findings revealed that of the 65 students who completed the questionnaires 34 (52.3%) had used the Internet and 31 (47.6%) had not. Out of the 24 respondents who gave reasons for not having used the Internet, the majority 17 (70.8%) of respondents said that they had not received formal training and did not know how to use the Internet. The major problems facing the Internet users at St. Joseph 's were the shortage of computers mentioned by 13 (38.2%) respondents and computers being slow as indicated by 13 (38.2%) respondents. Six (17.6%) respondents also pointed to not having enough training in the use of Internet facilities. Recommendations concerning Internet use at the Institute were made and suggestions for further research put forward. / Thesis (M.I.S.)-University of KwaZulu-Natal, Pietermaritzburg, 2006.