An adaptive admission control and load balancing algorithm for a QoS-aware Web system

The main objective of this thesis focuses on the design of an adaptive algorithm for admission control and content-aware load balancing for Web traffic. In order to set the context of this work, several reviews are included to introduce the reader in the background concepts of Web load balancing, admission control and the Internet traffic characteristics that may affect the good performance of a Web site. The admission control and load balancing algorithm described in this thesis manages the distribution of traffic to a Web cluster based on QoS requirements. The goal of the proposed scheduling algorithm is to avoid situations in which the system provides a lower performance than desired due to servers' congestion. This is achieved through the implementation of forecasting calculations. Obviously, the increase of the computational cost of the algorithm results in some overhead. This is the reason for designing an adaptive time slot scheduling that sets the execution times of the algorithm depending on the burstiness that is arriving to the system. Therefore, the predictive scheduling algorithm proposed includes an adaptive overhead control. Once defined the scheduling of the algorithm, we design the admission control module based on throughput predictions. The results obtained by several throughput predictors are compared and one of them is selected to be included in our algorithm. The utilisation level that the Web servers will have in the near future is also forecasted and reserved for each service depending on the Service Level Agreement (SLA). Our load balancing strategy is based on a classical policy. Hence, a comparison of several classical load balancing policies is also included in order to know which of them better fits our algorithm. A simulation model has been designed to obtain the results presented in this thesis

An open hardware electronic controller for motorized rotary injection valves used in flow injection analysis

This work presents the design, development and the implementation of a motorized injection valve used in Flow Injection Analysis systems. The built prototype has been developed based on the open hardware, software and firmware, emergent philosophy thus helping the development of a free and independent science. This policy creates a platform of open projects that feed each other, contributing to scientific and technological development while sharing knowledge. The proposed design project can be modified to implant it in other devices or projects according to the needs of each one. Also, the open project can be a great help as teaching material in Universities, since open hardware projects are fully described and documented

An anti-islanding protection based on RoCoF compliant with ENTSO-E and IEC 62116

In case of unintentional islanding, distributed generation units must be able to detect it and disconnect from the grid in less than 2 seconds. In this work, a Rate of Change of Frequency (RoCoF) method has been developed for islanding detection. Since these algorithms are conditioned by the requirements of grid codes, ENTSO-E network code and IEC 62116 have been taken into account. The RoCoF anti-islanding algorithm has been developed in MATLAB-Simulink and implemented through rapid prototyping techniques in an FPGA ALTERA Cyclone V. To check the proposed protection algorithm, simulation tests have been carried out. Finally, the RoCoF anti-islanding protection has been validated using FPGA in the loop and experimentally in a real 20-kW inverter. © 2022, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved

Even after armed conflict, the environmental quality of Indigenous Peoples' lands in biodiversity hotspots surpasses that of non-Indigenous lands

Unidad de excelencia María de Maeztu CEX2019-000940-MIndigenous Peoples lands cover over a fifth of the world's land surface and support high levels of biodiversity. However, for centuries Indigenous Peoples have suffered from deprivation, often dispossession, and even cultural genocide, a process continuing today in some regions. Biodiversity hotspots, global areas of high endemicity that are heavily threatened by habitat loss and other human activities are also affected by conflict. Although covering only 2.4 % of the world's surface, over 80 % of armed conflicts occurred in biodiversity hotspots between 1950 and 2000. Given that many hotspots overlap with Indigenous Peoples' lands, we asked whether the co-occurrence of Indigenous Peoples' lands and high ecological integrity, measured by using Intact Forest Landscapes as units which still contain significant biological diversity, and the Human Footprint as a proxy for anthropogenic impacts, increased the persistence of biodiversity in hotspots where there has been armed conflict. Our results show that, withinbiodiversity hotspots, armed conflict was more likely to occur on Indigenous Peoples' lands than non-Indigenous lands, yet environmental damage and anthropogenic impacts were both lower. We suggest that Indigenous Peoples have been able to moderate ecosystem degradation processes before, during, and after armed conflict because of their strong ties to their lands and their determination to defend their rights and territories. We argue that recognition and support for the efforts of Indigenous Peoples to protect their lands is not only socially just but also essential for meeting the now pressing global post-2020 conservation targets

Dietary Patterns of Children on Three Indigenous Societies

Despite increasing research interest on Indigenous Peoples' food systems, the specificities of Indigenous children's diets remain largely unexplored. We analyze data on food consumption of children from three Indigenous societies with relatively little involvement in the market economy: the Tsimane' (Bolivian Amazon), the Baka (Congo Basin), and the Punan Tubu (Borneo), as such societies allow for the rare possibility to see relationships that become hard to spot once external influences become commonplace. We describe children's diets and measure dietary quality through two standard indicators: dietary diversity and dietary quality (proxied by fruits and vegetables and animal source food consumption). The diversity of Indigenous children's diets varied from one society to another but was high compared to previously reported data. Overall, children's diets were more diverse than adults' diets, without stark differences between the diets of boys and girls or between children of different ages. There was a tendency for more diverse diets amongst children who attend school compared to those who do not. Children in the sample rely on a complex mixture of locallysourced foods (mainly fruits, vegetables, and animal source foods) and products from the market (mainly oils, sweets, spices, and beverages). Findings from this work suggest that Indigenous children remain highly dependent on forest resources and subsistence agriculture for their diets. In that sense, the implications of the ongoing environmental changes on Indigenous children's diets require more scholarly attention.FdA – Publicaties zonder aanstelling Universiteit Leide

Indigenous Peoples' Lands are critical for safeguarding vertebrate diversity across the tropics

Unidad de excelencia María de Maeztu CEX2019-000940-MIndigenous Peoples are long-term custodians of their lands, but only recently are their contributions to conservation starting to be recognized in biodiversity policy and practice. Tropical forest loss and degradation are lower in Indigenous lands than unprotected areas, yet the role of Indigenous Peoples' Lands (IPL) in biodiversity conservation has not been properly assessed from regional to global scales. Using species distribution ranges of 11,872 tropical forest-dependent vertebrates to create area of habitat maps, we identified the overlap of these species ranges with IPL and then compared values inside and outside of IPL for species richness, extinction vulnerability, and range-size rarity. Of assessed vertebrates, at least 76.8% had range overlaps with IPL, on average overlapping ~25% of their ranges; at least 120 species were found only within IPL. Species richness within IPL was highest in South America, while IPL in Southeast Asia had highest extinction vulnerability, and IPL in Dominica and New Caledonia were important for range-size rarity. Most countries in the Americas had higher species richness within IPL than outside, whereas most countries in Asia had lower extinction vulnerability scores inside IPL and more countries in Africa and Asia had slightly higher range-size rarity in IPL. Our findings suggest that IPL provide critical support for tropical forest-dependent vertebrates, highlighting the need for greater inclusion of Indigenous Peoples in conservation target-setting and program implementation, and stronger upholding of Indigenous Peoples' rights in conservation policy

Effectiveness of new tools to define an up-to-date patient safety risk map: A primary care study protocol

Background: Reducing incidents related to health care interventions to improve patient safety is a health policy priority. To strengthen a culture of safety, reporting incidents is essential. This study aims to define a patient safety risk map using the description and analysis of incidents within a primary care region with a prior patient safety improvement strategy organisationally developed and promoted. Methods: The study will be conducted in two phases: (1) a cross-sectional descriptive observational study to describe reported incidents; and (2) a quasi-experimental study to compare reported incidents. The study will take place in the Camp de Tarragona Primary Care Management (Catalan Institute of Health). In Phase 1, all reactive notifications collected within one year (2018) will be analysed; during Phase 2, all proactive notifications of the second and third weeks of June 2019 will be analysed. Adverse events will also be assessed. Phases 1 and 2 will use a digital platform and the proactive tool proSP to notify and analyse incidents related to patient safety. Expected Results: To obtain an up-to-date, primary care patient safety risk map to prioritise strategies that result in safer practices. © 2021 by the authors. Licensee MDPI, Basel, Switzerland

Orígenes, evolución y retos de la etnobiología boliviana

Altres ajuts: Fundació Autònoma Solidaria (Universitat Autònoma de Barcelona) por el financiamiento del Fons de Solidaritat (convocatorias de 2015, 2017, y 2019) para la realización de las Jornadas de Etnobiología en Bolivia.Unidad de excelencia María de Maeztu CEX2019-000940-MLa etnobiología estudia las relaciones que diferentes sociedades entablan con la naturaleza analizando conocimientos, usos y percepciones. Bolivia es un país con una gran diversidad biológica y cultural. En las últimas dos décadas, Bolivia ha iniciado un proceso político de defensa de la identidad y la gobernanza indígena que incluye la revalorización del conocimiento ecológico local. Esta coyuntura proporciona una oportunidad excelente para el desarrollo y la consolidación de la investigación etnobiológica en el país. En este artículo, documentamos los precursores biológicos y antropológicos de la etnobiología boliviana y analizamos la evolución de la disciplina usando tres estudios de caso emblemáticos: los dos primeros muestran la confluencia de un proyecto de carácter biológico y uno de carácter antropológico hacia la etnobiología, y el tercero ejemplifica los beneficios del enfoque participativo. La última sección aborda algunos de los grandes retos de la etnobiología en Bolivia, centrándose en tres aspectos que permitirían asentar unas bases fuertes para su desarrollo: i) la identificación de vacíos documentales y la creación de una línea de base; ii) el desarrollo metodológico con énfasis en la interdisciplinariedad, iii) la internacionalización; y iv) la generalización de la investigación participativa potenciando el diálogo de saberes. La etnobiología puede contribuir a la resolución de problemas ambientales contemporáneos, pero este potencial no puede realizarse sin una mayor inclusión de los pueblos indígenas y comunidades locales.L'ethnobiologie étudie les relations que les différentes sociétés établissent avec la nature, en analysant les connaissances, les usages et les perceptions. La Bolivie est un pays présentant une grande diversité biologique et culturelle. Au cours des deux dernières décennies, la Bolivie a initié une politique de défense de l'identité et de la gouvernance autochtones, qui comprend la réévaluation des connaissances écologiques locales. Cette situation offre une excellente opportunité pour le développement et la consolidation de la recherche ethnobiologique dans le pays. Dans cet article, nous documentons les précurseurs biologiques et anthropologiques de l'ethnobiologie bolivienne et nous analysons son évolution à partir de trois études de cas emblématiques : les deux premières montrent la confluence d'un projet biologique et d'un projet anthropologique vers l'ethnobiologie, et la troisième illustre les bénéfices de l'approche participative. La dernière section aborde certains des grands défis de l'ethnobiologie en Bolivie, en se concentrant sur quatre aspects qui permettraient d'établir une base solide pour le développement de la discipline : i) identification des lacunes documentaires et création d'une base de référence ; ii) développement méthodologique mettant l'accent sur l'interdisciplinarité, iii) internationalisation ; et iv) généralisation de la recherche participative qui permet de renforcer le dialogue des connaissances. L'ethnobiologie peut contribuer à la résolution des problèmes environnementaux contemporains, mais ce potentiel ne peut être réalisé sans une plus grande inclusion des peuples autochtones et des communautés locales.Ethnobiology is the study of the relationships that different societies establish with nature, through the anlysis of knowledge, uses and perceptions. Bolivia is a country with great biological and cultural diversity. In the last two decades, Bolivia has initiated a political process in view to defend indigenous identity and governance, which includes the revaluation of local ecological knowledge. This situation provides an excellent opportunity for the development and consolidation of ethnobiological research in the country. In this article, we document the biological and anthropological precursors of Bolivian ethnobiology and we analyze its evolution through three emblematic case studies: the first two show the confluence of a biological and an anthropological project towards ethnobiology, and the third one illustrates the benefits of the participatory approach. The last section addresses some of the major challenges posed by ethnobiology in Bolivia, focusing on four aspects that are necessary to lay a strong foundation for the development of the discipline: i) identification of documentary gaps and creation of a baseline; ii) methodological development with a focus on interdisciplinarity, iii) internationalization; and iv) generalization of participatory research, which helps initiate a dialogue between various types of knowledge. Ethnobiology can contribute to the resolution of contemporary environmental issues, but this potential cannot be realized without a greater inclusion of Indigenous Peoples and local communities

Evidence of a landlocked reproducing population of the marine pejerrey Odontesthes argentinensis (Actinopterygii; Atherinopsidae)

In South America, the order Atheriniformes includes the monophyletic genus Odontesthes with 20 species that inhabit freshwater, estuarine and coastal environments. Pejerrey Odontesthes argentinensis is widely distributed in coastal and estuarine areas of the Atlantic Ocean and is known to foray into estuaries of river systems, particularly in conditions of elevated salinity. However, to our knowledge, a landlocked self‐sustaining population has never been recorded. In this study, we examined the pejerrey population of Salada de Pedro Luro Lake (south‐east of Buenos Aires Province, Argentina) to clarify its taxonomic identity. An integrative taxonomic analysis based on traditional meristic, landmark‐based morphometrics and genetic techniques suggests that the Salada de Pedro Luro pejerrey population represents a novel case of physiological and morphological adaptation of a marine pejerrey species to a landlocked environment and emphasises the environmental plasticity of this group of fishesFil: Colautti, Dario César. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Miranda, Leandro Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: González Castro, M.. Universidad Nacional de Mar del Plata; ArgentinaFil: Villanova, Vanina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Strüssmann, Carlos A.. Tokyo University Of Marine Science And Technology; JapónFil: Mancini, Miguel Alberto. Universidad Nacional de Río Cuarto; ArgentinaFil: Maiztegui, Tomás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Limnología "Dr. Raúl A. Ringuelet". Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Limnología; ArgentinaFil: Berasain, Gustavo. Provincia de Buenos Aires. Ministerio de Asuntos Agrarios; ArgentinaFil: Hattori, Ricardo Shohei. Tokyo University of Marine Science and Technology; JapónFil: Grosman, Manuel Fabián. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Sanzano, Pablo Miguel. Universidad Nacional del Centro de la Provincia de Buenos Aires; ArgentinaFil: Lozano, I.. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Llamazares Vegh, Sabina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Salinas, V.. Universidad Nacional de Río Cuarto; ArgentinaFil: Del Ponti, O.. Universidad Nacional de La Pampa; ArgentinaFil: Fresno, P.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); ArgentinaFil: Minotti, Priscilla Gail. Universidad Nacional de San Martín; ArgentinaFil: Yamamoto, Y.. Tokyo University Of Marine Science And Technology; JapónFil: Baigún, C.. Universidad Nacional de San Martín; Argentin