Air transportation has grown in an unexpected way during last decades and is expected to increase even more in the next years. Traffic growth tendencies forecast an expansion in the demand and greater aviation connectivity, but also higher workload to the different airspace users, especially for airport and services. Therefore, it is essential to employ strategies designed to use efficiently valuable corporate resource. Airport authorities around the world are investing in large capital projects, including new or improved runways, terminal expansions, and entirely new airports. However, this effort is sometimes limited due to their geographic location. In this work, two main objectives are pursued: first, to highlight the importance of the industry by exposing the current situation and future trends all over the world focusing in the Mexican industry; and second, to introduce a simulation model which can be used as a decision making tool for the upcoming demand. The analysis of the scenarios illustrates how to develop strategies to cope with the different airspace user's needs.
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Mexican oregano is a non-timber forest product harvested in natural vegetation and represents an important source of income for rural families. Recent reports have highlighted decreases in natural populations caused by increased harvest intensity. Oregano leaf harvesting is a complex problem, involving different components and views, and has a clear spatial dimension. We proposed an analytical framework based on multi-criteria-multi-objective analyses. GIS tools were used as the platform for managing, displaying and analyzing ecological and socioeconomic information from different sources in order to evaluate land suitability of three different management strategies for two competing land objectives: oregano Harvest and oregano Regeneration. The incorporation of environmental evaluation criteria in the analysis allowed the identification of new potential oregano harvesting areas which were neither reported by harvesters, nor registered during harvesting trips. Socio-economic criteria, such as land tenure, highlighted the fact that a substantial proportion of current oregano harvesting areas are located outside ejido limits resulting in potential conflicts for resource access. The proposed Balanced oregano management strategy, in which the same proportion of suitable area (50%) was assigned to both objectives, represents the most favorable management strategy. This option allows harvesters to continue earning an income from oregano leaf harvest; and at the same time helps in the selection of the best areas for oregano regeneration. It also represents a management strategy with a smaller impact on oregano populations and on the harvesters ́ income, as well as lower monitoring costs. The proposed analytical frame-work may contribute to advance the application of systematic approaches for solving decision-making problems in areas where oregano leaves and other NTFP are harvested.
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Het onderzoek vindt plaats in het kader van een kritische discoursanalyse. Dit is een vorm van discoursanalyse, die is opgebouwd vanuit de taalkunde en de sociologie en die speciaal gefocust is op de mate waarin taal bijdraagt tot het handhaven of aanvechten van machtsverhoudingen in de maatschappij. Het onderzoek van Nicolien gaat over de discursieve strijd tussen de Zapatistas in Mexico en de Mexicaanse regering.
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An EU-Mexican panel discussing the needs of creative industries mid- and post-pandemic, and how the cultural sector is fundamental for the health and wellbeing of society. Discussions touched on employment, policy, and education, along with sector-specific opportunities and cross-sectoral challenges. The name 'creative industries' was challenged for its divergent uses: many cultural sector workers believe it encompasses them, but policy often regards 'creative industries' as a branch of industrial design. There was significant criticism of social organisation that orients purely towards 'productivity' and the generation of revenue, while ignoring happiness as a goal.
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Active sachets can be used to manage postharvest losses associated with phytopathogens in fruit and vegetables. Diseases associated with phytopathogens are the principal causes of avocado losses postharvest. This study was performed to develop antifungal active sachet-based oregano oil microencapsulated with starch/agave fructans that allows in vivo and in vitro control of phytopathogens associated with avocado decay. In addition, avocado-sachet interactions were studied. Oregano oil sachets inhibited 100% of the in vitro growth of Colletotrichum gloeosporioides, Colletotrichum acutatum, Diaporthe passiflorae, and Neoscytalidium hyalinum at 30 °C for 12 d The efficacy of the oregano oil sachets was confirmed on avocados inoculated with C. gloeosporioides. Active sachets reduced the injury area of anthracnose infection in avocado without negative effects on the color or firmness of the fruit, compared to untreated control. Treatment also caused significantly higher (p < 0.05) phenylalanine ammonia-lyase, chitinase, β-1,3-glucanase, catalase and peroxidase activities compared to the control fruit. In addition, antifungal sachets significantly enhanced the contents of total flavonoids and phenolic compounds in treated avocados.
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Mexico City airport is located close to the center ofthe city and is Mexico’s busiest airport which is consideredcongested. One of the consequences of airport congestion areflight delays which in turn decrease costumer’s satisfaction. Airtraffic control has been using a ground delay program as a toolfor alleviating the congestion problems, particularly in the mostcongested slots of the airport. This paper uses a model-basedapproach for analyzing the effectiveness of the ground delayprogram and rules. The results show that however the rulesapplied seem efficient, there is still room for improvement inorder to make the traffic management more efficient.
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The the agriculture sector in developing countries has a large production share in the global fresh fruit market. Yet, in many cases, the land production yield indices at the orchard level are lower than the values related to more technologically developed countries. This situation leads to economic losses due to poor performance in productivity, efficiency and quality, which in turn is related to a technological and managerial gap. In this chapter, an operations management framework is proposed that tries to balance the market requirements (i.e. quality and quantity) with the capacity of the production system. This is performed through a multi-objective optimization approach that helps orchard managers synchronize the production yields with market demand and quality requirements. The model also allows the production managers to have a forecasting tool based on historical data. The model integrates the full supply chain through a set of sub-models for each stage of the production life cycle. The objective of the model is to minimize cost while maximizing sales. The optimization strategy involves a variant of the so-called NSGA II algorithm. The case study of an exporting lime packaging company is developed to illustrate the proposed framework and its possible impact on performance.
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Proefschrift aan de Lancaster University. Geen samenvatting beschikbaar
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Boekbespreking "Investeren in vastgoed, grond en gebieden", verschenen bij de uitgever van het boek: SPRYG Real Estate Academy
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