Resumen: En las últimas décadas en Colombia se han percibido cambios importantes en la agricultura, relacionados con la concentración de la tierra, la expansión de la frontera agropecuaria, el crecimiento de algunos cultivos propios de la agricultura empresarial, así como el interés y adquisición de tierras por parte de actores nacionales y extranjeros. A nivel de las políticas públicas, los últimos gobiernos han realizado esfuerzos por permitir, en la legislación, la adquisición o el uso de tierras públicas por parte de empresas. Se destaca, dentro de estos esfuerzos, la promulgación de la Ley Zidres en 2016. Dichas transformaciones se enmarcan dentro de dinámicas internacionales que han llevado a la adopción del modelo de agronegocio en diferentes países. Esta tesis analiza, en el marco del neoliberalismo, la expansión del agronegocio en Colombia, a través del estudio de las transformaciones a nivel productivo, territorial y de las políticas públicas. El desarrollo de esta investigación se apoyó en la discusión teórica sobre hegemonía, en los elementos del análisis del discurso y en los desarrollos conceptuales sobre el agronegocio. El recorrido histórico sobre la cuestión agraria en Colombia, así como el estudio de la implementación del neoliberalismo y los cambios generados en la agricultura, que se han profundizado en los últimos años, sugieren la disputa del agronegocio por la hegemonía. Esta se ha intensificado, principalmente, a partir del acuerdo de paz firmado entre el gobierno de Juan Manuel Santos y la guerrilla de las FARC-EP, que incluyó la pauta de la Reforma Rural Integral y dio protagonismo a la economía campesina y a la democratización de la tierra.

Abstract: Entrepreneurial Companies play a fundamental role in economic growth, the creation of employment, local and regional development, and social cohesion. Start-ups will not necessarily become the largest source for employment, but they are considered economic drivers that commercialize innovation, expand internationally and create economic value. With the recent increase in prominence of new entrepreneurial ventures all over the world, much attention has been devoted to the creation of new firms. Belgium consists of three main regions: Brussels, Flanders, and Wallonia. The breakdown of start-ups according to these regions is the following: Brussels: 31.5%, Flanders: 53.4%, and Wallonia: 15.1%. Note that Brussels, despite hosting only 11% of all active companies in Belgium, is doing exceptionally well regarding its share of start-ups and scaleups; almost 50% of all Belgian start-ups are concentrated in and around the cities of Brussels, Ghent, and Antwerp. It is no surprise that, being the largest cities of Belgium, students make up for a significant portion of the population. More than half of the companies are active in the following categories: eCommerce, Software as a Service (SaaS), consumer mobile/web applications, industrial technology/production, and education. Half of the companies are at the start-up stage (i.e. completion of MVP or initial customers/revenue). 22% is in the seed stage and 24% in growth stage - 85% of the companies are mainly in B2B. While the majority (55%) of entrepreneurs believe that their product or service is a novelty in the world, only 4% realizes that their product or service is not a market innovation. In addition to that, 23% of startups do not have employees (Mohout, 2016). The supplying side of the market for informal capital consists of high net-worth individuals with considerable business experience, commonly known as Business Angels (BAs). Business Angels invest a portion of their wealth in high-risk, high-return start-ups (Coveney & Moore, Business Angels: Securing Start-up Finance, 1998). While it is difficult to precisely quantify the size of the angel market (due to its informal nature), some studies estimate its size to be twice the size of the institutional venture capital market (Freear, Sohl, & Wetzel, 1995). This suggests that Business Angels provide the largest amount of capital among early-stage ventures and fund a greater number of firms than venture capitalists (VCs) do. After receiving a first investment from a Business Angel, start-ups face a new critical question: whether to raise new funding under the form of debt or equity and, in the case of equity, involving new Business Angels or migrating to Venture Capital. Literature suggests that these young enterprises more often than not receive funds from equity in the early stages. However, in the case of demand for more resources and having a BA as back up, the entrepreneur may appeal to traditional financing sources in order to maintain the ownership. Resumen: Las microempresas juegan un rol fundamental en el crecimiento económico de un país, la creación de nuevos empleos y el desarrollo local y regional. Start-ups no se convierten necesariamente en la mayor fuente de empleo pero si son considerados impulsadores económicos que comercializan innovación, se expanden internacionalmente y crean valor económico. Después de recibir una primera inversión de un Ángel Inversionista, Start-Ups tienen que enfrentar una nueva y critica pregunta: ¿es mejor conseguir nuevos fondos adquiriendo una deuda o nuevo capital proveniente de inversionistas y en caso de recurrir a inversionistas, conseguir un nuevo ángel inversionista o migrar a un fondo de inversión? La literatura sugiere que estas nuevas empresas a menudo reciben fondos de capital en las primeras etapas de inversión. Sin embargo, teniendo un Ángel inversionista como respaldo, el empresario puede optar por métodos de financiación más tradicionales con la intensión de mantener propia la empresa.

Abstract: The adequate provision of service delivery is essential for social welfare; however, providers performance varies, tending to underperform in developing countries. Therefore, whether providers responsiveness is sensitive to citizen oversight remains a relevant question for public governance. To this extent, Understanding the dynamics of accountability as a strategy to foster access, quality, and affordability of services delivery is vital to ensure development. This thesis establishes a quantitative assessment of the relationship between accountability and development. First, I systematically reviewed the empirical literature evaluating how accountability interventions affect service delivery in developing countries between 1990-2020, finding twenty-one papers from nine developing countries. Then, I conducted a meta-analysis based on an RVE model with over 90 outcomes to quantitatively synthesise the effectiveness of accountability in triggering citizen oversight of service delivery and providers responsiveness. The findings suggest that although accountability increases citizen knowledge of civic and political means to demand service delivery reforms, factors such as context, accountability structure and interventions length influence its effectiveness. While the results provide evidence to inform policy-making about aspects that effectively ignite citizen participation, they also suggest future research avenues to further conceptualise this relationship in an era of widely accessible information and new approaches to democracy.

Abstract: The use of bacterial pigments with biotechnological potential advances are growing and more and from this natural source are developed several products with different applications in the pharmaceutical, food, cosmetics and other industries, presenting advantages in economic and environmental issues, fulfilling a demand and bringing benefits For consumer health and reducing the use of chemical synthetized products. The aim of this study was the production, working volume and characterization of pigments synthesized by Chryseobacterium KR6 and Lysobacter A03 bacteria isolated from chicken and penguin feathers, respectively. The pigments were characterized by KOH 20% test, UV-visible, colors system CIELAB, HPLC-DAD-MS, FTIR and was evaluated the antioxidant capacity. The pigments from KR6 and A03 presents some characteristics from flexirubin and xanthomonadin non- brominated type pigments respectively. Pigment from KR6 shows a positive bathochromic shift when colonies or the extracted pigment are in presence of alkaline solution (KOH20%) and also have a λmax at 450nm in acetone when analyzed by UV-Vis. The FTIR analysis shows some principal functional groups that might be from a flexirubin molecule. Pigment from A03 didn’t present any shift when flooded with KOH and the λmax was 419 nm and 427 nm in acetone and chloroform respectively. The two pigments presented antioxidant activity evaluated by the capture of the free radical ABTS. It was not possible to propose a chemical structure for the two pigments; purification processes are necessary for a molecular identification of the biotechnologically viable pigments.

Abstract: Stochastic time series methods for load forecasting are the traditional methods used by electric power companies [1] because they can model seasonal and stochastic behavior of the load [2]. A load time series has patterns that repeat at different time scales such as daily, weekly or yearly. These patterns indicate that load can be predicted and the shortest seasonality component has the highest effect on the forecast. There might be conditions in which load is in different time resolutions, has a different amount of missing data or is under special events such as COVID-19 pandemic. Load forecasting methods should be able to perform well under these circumstances. On the other hand, neural networks are a wide research topic, they can learn [3] and have low forecasting errors [4]. In this work we explain the main characteristics of load demand in time, load forecasting and we compare stochas-tic time series methods with neural networks for load forecasting in terms of the error with respect to the real load. Resumen: Los métodos de series de tiempo estocásticos para pronósticos de carga son los métodos tradicionales usados por compañías de energía eléctrica [1] porque pueden modelar el comportamiento estocástico y estacional de la carga [2]. Una serie de tiempo de carga tiene patrones que se repiten en diferentes escalas de tiempo como diaria, semanal o anual. Estos patrones indican que la carga puede ser predicha y que el componente de estacionalidad más corto tiene el efecto más grande en el pronóstico. Pude que haya condiciones en las cuales la carga este en diferentes resoluciones de tiempo, tenga una diferente cantidad de datos faltantes o este bajo eventos especiales como la pandemia COVID-19. Los métodos de pronóstico de carga deberían ser capaces de llevarse a cabo bien bajo estas circunstancias. Por otra parte, las redes neuronales son un tema de investigación amplio, ellas pueden aprender [3] y tienen errores de pronóstico bajos [4]. En este trabajo explicamos las principales características de la demanda de carga en el tiempo, pronósticos de carga y comparamos métodos de serie de tiempo estocásticos con redes neuronales para pronósticos de carga en términos del error con respecto a la carga real. [1] H. Wang, B.-S. Li, X.-Y. Han, D.-L. Wang and H. Jin, "Study of Neural Networks for Electric Power Load Forecasting," Third International Symposium on Neural Networks - Advances in Neural Networks - ISNN 2006, Proceedings, Part II, pp. 1277-1283, 2006. [2] K. Berk, Modeling and Forecasting Electricity Demand, Siegen: Springer Spektrum, 2015. [3] H. Alfares and N. Mohammad, "Electric load forecasting: Literature survey and classification of methods," International Journal of Systems Science - IJSySc. 33, vol. 33, no. 1, pp. 23-34, 2002. [4] M. Singh and R. Maini, "Various Electricity Load Forecasting Techniques with Pros and Cons," International Journal of Recent Technology and Engineering (IJRTE), vol. 8, pp. 220-229, 2020.

Ana Rosa Quintana. "Necesitaba recuperar mi vida y la rutina porque lo que más he echado de menos ha sido mi libertad". Moda práctica, afina tu silueta con vestidos drapeados. Claves para una vida feliz, cómo disfrutar del presente. 5 Factores que tener en cuenta para evitar el sobrepeso. En forma. Deportes ideales a los 50. ¿Cuál es el tuyo?

Russell Watson and Aled Jones. On their fun friendship, and how their families always come first. Simple ways to help your heart, viral tips to keep you heal thy this winter. One reader remembers her beloved hero dad. Christnas cajes for all the family.

Especial oro y diamantes. Todos en busca de la felicidad (y) la verdadera joya es el amor ¡propio! La música que cura. La honestidad de Jaime Camil.  ¿Y su nos amanecemos? “Qué placer estar aquí otra vez, tocando el cielo todos de la mano. En otro atardecer donde no hay más qué hacer, más que brillar igual que ayer”. Motel Atender las señales de la vida.

Mi familia en el metaverso. Formar una familia en un mundo virtual es posible ¿pero hasta qué punto nos es benéfico a los seres humanos? Bancos socialmente responsables. Las instituciones que toman muy en serio sus obligaciones con las personas y con el medioambiente. El arte de comprar con inteligencia. 20 consejos para el embarazo. Escribir desde el yo.  

Avatar: The Way of Water. Come on in, the access is lovely: Cameron, Saldaña, Worthington, Weaver, Lang and more talk sea-quel opportunities. The Witcher: Blood Origin. A prequel? Geralt of here! David Harbour. Why you’d better watch out for cinema’s newest, baddest Santa… The Wonder. Florence Pugh sings like a nightingale about her miraculous period drama.