De un modelo tradicional de concesión a un esquema renovado de app para el desarrollo de proyectos de infraestructura vial en Colombia

En la presente investigación se contrasta el Modelo Tradicional de Concesión con el Renovado Esquema de Asociación Público Privada propuesto por la Ley 1508 de 2011 y sus decretos reglamentarios, para establecer, a partir de puntos de contacto y fuga entre una y otra institución, que existe una verdadera transformación del paradigma; y que, este modelo mejorado de participación privada que cuenta con sus propios rasgos definitorios, se erige en principio, como una solución a las exigencias actuales de los proyectos viales de la Cuarta Generación de Concesiones en Colombia, pero a la vez da apertura al debate para la construcción académica del conocimiento, por su reciente implementación.

Nuevo modelo de tutor??a cu??druple en una experiencia APP del Grado de Publicidad y Relaciones P??blicas de la UdG

Resumen basado en el de la publicaci??n

Metacognition as scaffolding for the development of listening comprehension in a social MALL app

Resumen basado en el de la publicaci??n

LEGENDiary: web 2.0 y app móvil

LEGENDiary es un geoportal 2.0 que permite compartir y explorar las leyendas y cuentos característicos de las ciudades de una manera dinámica y colaborativa. Muchas veces las leyendas forman parte de la historia y cultura de nuestros pueblos o ciudades, LEGENDiary nos permite conocerlas según el territorio donde se ubican. La iniciativa promueve nuevas formas de conocer y explorar el territorio, en general, y las leyendas y cuentos de nuestros pueblos y ciudades, en particular. Un proyecto que permite a los usuarios interactuar y ser protagonistas de esta experiencia. El proyecto parte inicialmente de un contexto español, y se trata de un proyecto hecho a medida de todas aquellas personas interesadas y con curiosidad en compartir, conocer y explorar las leyendas en el territorio. La combinación de las Tecnologías de la Información Geográfica y las Tecnologías 2.0 es el escenario donde surge LEGENDiary, aportando la componente geográfica a las leyendas y cuentos de los pueblos y ciudades en un contexto colaborativo. La iniciativa se lanza el día 16 de noviembre de 2011 en formato concurso con motivo del Día Internacional de los Sistemas de Información Geográfica (GISDay). Para llevar a cabo la aplicación se han utilizado dos librerías Javascript (Leaflet y jQuery) de código abierto y gratuito que permiten crear de forma rápida y ligera aplicaciones de mapas interactivos a través de navegadores web (de escritorio y móvil). Como mapa base se ha utilizado Open Street Map.LEGENDiary es una iniciativa del Servicio de SIG y Teledetección (SIGTE) de la Universidad de Girona en colaboración con el Departamento de Geografía y la Facultad de Turismo de la misma universidad, y con elapoyo del Hotel Llegendes de Girona

Los asociaciones público-privadas (APP): una opción para contratación administrativa en Latinoamérica (Tema Central)

Las APP son una opción frente a modalidades de contratación administrativa más agresivas como aquellas típicas de la época de las privatizaciones. Las APP conjugan la indispensable colaboración entre el sector público y el privado.

GIS in the cloud: implementing a web map service on Google App Engine

Many producers of geographic information are now disseminating their data using open web service protocols, notably those published by the Open Geospatial Consortium. There are many challenges inherent in running robust and reliable services at reasonable cost. Cloud computing provides a new kind of scalable infrastructure that could address many of these challenges. In this study we implement a Web Map Service for raster imagery within the Google App Engine environment. We discuss the challenges of developing GIS applications within this framework and the performance characteristics of the implementation. Results show that the application scales well to multiple simultaneous users and performance will be adequate for many applications, although concerns remain over issues such as latency spikes. We discuss the feasibility of implementing services within the free usage quotas of Google App Engine and the possibility of extending the approaches in this paper to other GIS applications.

Phonological similarity effects without a phonological store: an individual differences model

The feature model of immediate memory (Nairne, 1990) is applied to an experiment testing individual differences in phonological confusions amongst a group (N=100) of participants performing a verbal memory test. By simulating the performance of an equivalent number of “pseudo-participants” the model fits both the mean performance and the variability within the group. Experimental data show that high-performing individuals are significantly more likely to demonstrate phonological confusions than low performance individuals and this is also true of the model, despite the model’s lack of either an explicit phonological store or a performance-linked strategy shift away from phonological storage. It is concluded that a dedicated phonological store is not necessary to explain the basic phonological confusion effect, and the reduction in such an effect can also be explained without requiring a change in encoding or rehearsal strategy or the deployment of a different storage buffer.

The British ‘failure’ that never was? The Anglo-American ‘productivity gap’ in large-scale interwar retailing—evidence from the department store sector

Interwar British retailing has been characterized as having lower productivity, less developed managerial hierarchies and methods, and weaker scale economies than its US counterpart. This article examines comparative productivity for one major segment of large-scale retailing in both countries—the department store sector. Drawing on exceptionally detailed contemporary survey data, we show that British department stores in fact achieved superior performance in terms of operating costs, margins, profits, and stock-turn. While smaller British stores had lower labour productivity than US stores of equivalent size, TFP was generally higher for British stores, which also enjoyed stronger scale economies. We also examine the reasons behind Britain's surprisingly strong relative performance, using surviving original returns from the British surveys. Contrary to arguments that British retailers faced major barriers to the development of large-scale enterprises, that could reap economies of scale and scope and invest in machinery and marketing to support the growth of their primary sales functions, we find that British department stores enthusiastically embraced the retail ‘managerial revolution’—and reaped substantial benefits from this investment.

The management of positive inter-store externalities in shopping centres: some empirical evidence

In enclosed shopping centres, stores benefit from the positive externalities of other stores in the centre. Some stores provide greater benefits to their neighbours than others – for example anchor tenants and brand leading stores. In managing shopping centres, these positive externalities might be captured through rental variations. This paper explores the determinants of rent – including externalities – for UK regional shopping centres. Two linked databases were utilised in the research. One contains characteristics of 148 shopping centres; the other has some 1,930 individual tenant records including rent level. These data were analysed to provide information on the characteristics of centres and retailers that help determine rent. Factors influencing tenant rents include market potential factors derived from urban and regional economic theory and shopping centre characteristics identified in prior retail research. The model also includes variables that proxy for the interaction between tenants and the impact of positive in-centre externalities. We find that store size is significantly and negatively related to tenant with both anchor and other larger tenants, perhaps as a result of the positive effects generated by their presence, paying relatively lower rents while smaller stores, benefiting from the generation of demand, pay relatively higher rents. Brand leader tenants pay lower rents than other tenants within individual retail categories.

Creating and implementing a biodiversity recording app for teaching and research in environmental studies

This case study reports on the development of a bespoke mobile recording app for collating records of biodiversity sightings on a University campus. This innovative project was achieved through a multi-disciplinary partnership of staff and students. It is hoped that the app itself will benefit lecturers by streamlining data collection during teaching and learning activities, whilst engaging students and highlighting the wealth of diversity available on campus

Collective financing among Chinese entrepreneurs and department store retailing in China

Chinese entrepreneurship in department store retailing differed from that seen in other emerging economies before 1940. Rather than the leading examples of the format being owned by advanced economy firms, in China a small group of Cantonese entrepreneurs established what became known as the ‘Big Four’ department stores in Shanghai. By 1940 the ‘Big Four’ department stores were among the most famous stores in China, and among the biggest businesses in China. None of these Chinese entrepreneurs had any prior experience in department store retailing. Rather this article explains how their success in department store retailing was dependent on a business model that enabled these Chinese entrepreneurs to act as informal investment bankers (or ‘shadow’ banks) for the thousands of overseas Chinese wanting to invest surplus savings in mainland China, so creating large indigenous business groups.

The only way is up: retail format saturation and the demise of the American five and dime store, 1914-1941

We examine a classic ‘wheel of retailing’ episode – the abandonment of the five and dime pricing formula by American variety chains. These switched from a conventional product lifecycle, focusing on cost reduction through standardisation, to a reverse path up the ‘service cost - unit value’ continuum. We show that, rather than reflecting deteriorating managerial acumen, this was a response to the continued imperative for growth following retail format saturation. Firm-specific (rather than format-specific) competitive advantages were too weak for any chain to be confident it could win a within-format price war, making inter-format competition through raising price points more attractive.

Grafisk profilering för butiksmiljö : Creating a visual identity for a store

A new visual identity for the ski store Alpingaraget in Stockholm has been proposed as the result of this thesis. Theproposal includes a new logotype, various printed matters, design planning of the store, interior design, signs and otherapplications.The theory section is within the field of graphic profiling and with some focus on profiling in stores.A clear visual identity is important for a company because what the company communicates internally and externallyshould be kept as consistent as possible. This is especially important nowadays when more and more similar products andstores are available. This means that the visual identity becomes part of the competition with other products and stores.The base elements in a visual identity are logotype, colors and typograpy. Using these elements according to rules andtemplates makes a consistent visual profile.