Blockchain-Based E-Voting System

El objetivo del presente trabajo es estudiar el estado del voto electrónico. Este término ha cobrado fuerza en los últimos años, y tiene la intención de mejorar los procesos electorales en papel, aumentando la eficiencia y redu-ciendo los errores que puedan surgir de este proceso, en el cual participan gran cantidad de personas. Blockchain ha ganado mucha popularidad y pose características que pueden ayudar a desarrollar estos sistemas dando seguridad a las personas involucradas en las elecciones. Este proyecto se divide en 5 capítulos principales. El primero explica de qué trata el proyecto, el problema que hay que resolver, el alcance y cuáles son los resultados esperados. El segundo es cómo se planificará y desarro-llará el proyecto, junto con el presupuesto y los informes de sostenibilidad. En el tercer capítulo, se hace una explicación histórica y teórica de la vota-ción y el voto electrónico, sus implementaciones, ventajas y desventajas. A continuación, en el capítulo 4, se realiza la misma explicación teórica sobre Blockchain. El objetivo de los capítulos 4 y 5 es conseguir una buena base y comprensión de los conceptos principales antes de entrar en la parte práctica o en las conclusiones. Finalmente, en el capítulo 5, se implementa una plataforma de votación electrónica basada en una blockchain de Ethe-reum. Al final, se dan las conclusiones sobre el proyecto en general y se adjuntan las referencias correspondientes.The purpose of this present paper is to study the state of electronic voting. This term has gained strength in the past few years, and has the intention to improve election processes on paper, by increasing efficiency and reduc-ing errors that may come from this process, in which a lot of people are involved. Blockchain has gained a lot of popularity and has some charac-teristics that can help develop these systems by giving confidence to the people involved in the elections. This project is divided into 5 main characters. The first one explains what the project is about, the problem that has to be solved, the scope, and what are the expected results. The second one is how the project will be planned and developed, together with the budget and sustainability re-ports. In the third chapter, there is a historical and theoretical explanation of voting and e-voting, its implementations, advantages, and disadvantages. Following in chapter 4, the same theoretical explanation is done with blockchains. The aim of chapters 4 and 5 is to get a good background and understanding of the main concepts before diving into a practical part or any conclusions. Finally, in chapter 5, an electronic voting platform based on an Ethereum blockchain is implemented. In the end, conclusions about the overall project are given and the corre-sponding references are attached

Ocean sunfish (Mola mola Linnaeus, 1758) monitoring program Spanish Trap fishery in the Western Mediterranean

Meeting of Subcommittee on Ecosystems and Bycatch, 8-12 May 2023, Madrid, SpainThe Subcommittee asked about the absence of tag recoveries and their causes and about the possibility of contributing biological samples from the Atlantic for the genetic analysis in the project. The presenter explained how the Mola mola are probably caught in traps during migration, which might explain the low number of recoveries. The low number of tagged fish to date could also contribute to the absence of recoveries. The presenter also welcomed the offer of analyzing samples from the Atlantic Ocean in the Mediterranean programme. The Subcommittee asked about the presence of Ranzania laevis in the catches of the Spanish traps, and it was clarified the project has not found Ranzania laevis in Spanish traps to dat

Ocean sunfish (Mola mola Linnaeus, 1758) monitoring program Spanish Trap fishery in the Western Mediterranean

Meeting of Subcommittee on Ecosystems and Bycatch, 8-12 May 2023, Madrid, SpainThe Subcommittee asked about the absence of tag recoveries and their causes and about the possibility of contributing biological samples from the Atlantic for the genetic analysis in the project. The presenter explained how the Mola mola are probably caught in traps during migration, which might explain the low number of recoveries. The low number of tagged fish to date could also contribute to the absence of recoveries. The presenter also welcomed the offer of analyzing samples from the Atlantic Ocean in the Mediterranean programme. The Subcommittee asked about the presence of Ranzania laevis in the catches of the Spanish traps, and it was clarified the project has not found Ranzania laevis in Spanish traps to dat

The impact of surgical delay on resectability of colorectal cancer: An international prospective cohort study

AimThe SARS-CoV-2 pandemic has provided a unique opportunity to explore the impact of surgical delays on cancer resectability. This study aimed to compare resectability for colorectal cancer patients undergoing delayed versus non-delayed surgery.MethodsThis was an international prospective cohort study of consecutive colorectal cancer patients with a decision for curative surgery (January-April 2020). Surgical delay was defined as an operation taking place more than 4 weeks after treatment decision, in a patient who did not receive neoadjuvant therapy. A subgroup analysis explored the effects of delay in elective patients only. The impact of longer delays was explored in a sensitivity analysis. The primary outcome was complete resection, defined as curative resection with an R0 margin.ResultsOverall, 5453 patients from 304 hospitals in 47 countries were included, of whom 6.6% (358/5453) did not receive their planned operation. Of the 4304 operated patients without neoadjuvant therapy, 40.5% (1744/4304) were delayed beyond 4 weeks. Delayed patients were more likely to be older, men, more comorbid, have higher body mass index and have rectal cancer and early stage disease. Delayed patients had higher unadjusted rates of complete resection (93.7% vs. 91.9%, P = 0.032) and lower rates of emergency surgery (4.5% vs. 22.5%, P ConclusionOne in 15 colorectal cancer patients did not receive their planned operation during the first wave of COVID-19. Surgical delay did not appear to compromise resectability, raising the hypothesis that any reduction in long-term survival attributable to delays is likely to be due to micro-metastatic disease

Delaying surgery for patients with a previous SARS-CoV-2 infection

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