Micromobility Users' Behaviour and Perceived Risk During Meeting Manoeuvres

[EN] Mobility patterns and lifestyles have changed in recent years in cities worldwide, thanks to the strong rise in modes of travel commonly referred to as micromobility. In this context, e-scooters have experienced a great rise globally which has led to an increase of crashes involving this type of micromobility vehicle in urban areas. Thus, there is a need to study e-scooter users¿ behaviour and their interaction with cyclists. This research aimed at characterizing the meeting manoeuvre between micromobility users along diverse typologies of two-way bicycle track by using an in-strumented e-scooter. As a result, bicycle tracks having concrete or vegetated curb presented lower clearance distance (¿0.8 m) than those without edge elements (>1 m), with no statistically signif-icant differences found between the interaction with bicycles and e-scooters. Additionally, an online questionnaire was proposed to assess users¿ perceived risk during the meeting manoeuvre, concluding that micromobility users feel safer and more comfortable riding on pavements away from parked or moving motorized traffic, and on protected bicycle tracks.FundingThis research is part of the research project PID2019-111744RB-I00, funded by MCIN/AEI/10.13039/501100011033.Fonseca-Cabrera, AS.; Llopis-Castelló, D.; Pérez Zuriaga, AM.; Alonso-Troyano, C.; García García, A. (2021). Micromobility Users' Behaviour and Perceived Risk During Meeting Manoeuvres. International Journal of Environmental research and Public Health (Online). 18(23):1-15. https://doi.org/10.3390/ijerph182312465S115182

Implementation of a Low-Cost Data Acquisition System on an E-Scooter for Micromobility Research

[EN] In recent years, cities are experiencing changes in the ways of moving around, increasing the use of micromobility vehicles. Bicycles are the most widespread transport mode and, therefore, cyclists¿ behaviour, safety, and comfort have been widely studied. However, the use of other personal mobility vehicles is increasing, especially e-scooters, and related studies are scarce. This paper proposes a low-cost open-source data acquisition system to be installed on an e-scooter. This system is based on Raspberry Pi and allows collecting speed, acceleration, and position of the e-scooter, the lateral clearance during meeting and overtaking manoeuvres, and the vibrations experienced by the micromobility users when riding on a bike lane. The system has been evaluated and tested on a bike lane segment to ensure the accuracy and reliability of the collected data. As a result, the use of the proposed system allows highway engineers and urban mobility planners to analyse the behaviour, safety, and comfort of the users of e-scooters. Additionally, the system can be easily adapted to another micromobility vehicle and used to assess pavement condition and micromobility users¿ riding comfort on a cycling network when the budget is limited.This research was funded by MCIN/AEI/10.13039/501100011033, grant number PID2019-111744RB-I00.Pérez Zuriaga, AM.; Llopis-Castelló, D.; Just-Martínez, V.; Fonseca-Cabrera, AS.; Alonso-Troyano, C.; García García, A. (2022). Implementation of a Low-Cost Data Acquisition System on an E-Scooter for Micromobility Research. Sensors. 22(21):1-18. https://doi.org/10.3390/s22218215118222

Complejo Cultural Olas de Tradición

Como parte de una problemática social, se debe reconocer que es importante preservar la cultura de la región del caribe colombiano. Lo anterior, debido a que esta permite el fortalecimiento del conocimiento y el desarrollo artístico de la sociedad en general. En la actualidad ha existido el cierre, abandono y descuido de establecimientos que promueven la cultura. Por esta razón, se hace indispensable la construcción de espacios que impulsen este tipo de iniciativas. El Complejo Cultural Olas de Tradición, como propuesta principal, pretende afrontar el problema en una de las zonas más representativas de la costa caribe. Cuenta con tres edificaciones principales, un Museo, un Teatro y una Escuela de Artes, además de una gran plazoleta, amplias zonas verdes y de descanso. Debido a su localización, su alcance afecta tanto al municipio de Puerto Colombia como a la ciudad de Barranquilla, incluyendo los corregimientos de Salgar y Sabanilla. Como fue mencionado anteriormente, el complejo cuenta con diversos espacios con el fin de abordar a una gran mayoría de habitantes. En general, se implementa la utilización de un sistema estructural mixto para las edificaciones (estructura metálica y en concreto), adicional a 800 metros de vía necesarios para la movilidad vehicular interna. Existen limitantes que deben ser tenidos en cuenta para su realización. Una de las más importantes corresponde al de tipo medio ambiental, debido a las alteraciones que se realizan en un ecosistema existente. De igual manera, el ámbito económico afecta en sentido que se espera contar con los recursos del Estado para la puesta en obra. El Complejo Cultural Olas de Tradición es una alternativa viable para solucionar la problemática presente. De esta manera, es importante presentar una propuesta segura y de gran calidad, y esto se logra siguiendo los estándares de las normativas vigentes nacionales, sirviendo como excelente punto crítico para la implementación del presente proyecto.As a part of a social problematic, the fact that preserving the culture of Colombia's Caribbean is important should be recognized. The above, because it allows the strengthening of knowledge and artistic development of the society in general. Nowadays, it has existed the closure, abandonment and neglect of establishments that promote culture. For this reason, the construction of places that impulse these kinds of initiatives is indispensable. The “Olas de Tradición” Cultural Complex, as the main proposal, pretends to face the problem in one of the most representative zones in the Caribbean Coast. It counts with three main buildings; a museum, a theater and an art school, in addition to great open spaces, green zones and resting zones. Due to its location, it affects both the municipality of Puerto Colombia and the city of Barranquilla, including the townships of Salgar and Sabanilla. As mentioned previously, the complex counts with several spaces to call the attention from as many people as possible. Generally, it is implemented a mixed structural system for all buildings (metal structure and concrete), in addition to 800 meters of road needed for the internal mobility. There are boundaries that have to be taken into account for its realization. One of the most important correspond to the environment, due to the alterations that are made to the existing ecosystem. Likewise, the economic area affects in the sense that it is expected to count with the resources of the State. The “Olas de Tradición” Cultural Complex is a viable alternative to solve the presented problematic. In this way, it is important to offer a safe and high-quality solution, this can be accomplished following the standards from the national regulations, working as an excellent critical point for the implementation of this project

Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries

© 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 licenseBackground: 80% of individuals with cancer will require a surgical procedure, yet little comparative data exist on early outcomes in low-income and middle-income countries (LMICs). We compared postoperative outcomes in breast, colorectal, and gastric cancer surgery in hospitals worldwide, focusing on the effect of disease stage and complications on postoperative mortality. Methods: This was a multicentre, international prospective cohort study of consecutive adult patients undergoing surgery for primary breast, colorectal, or gastric cancer requiring a skin incision done under general or neuraxial anaesthesia. The primary outcome was death or major complication within 30 days of surgery. Multilevel logistic regression determined relationships within three-level nested models of patients within hospitals and countries. Hospital-level infrastructure effects were explored with three-way mediation analyses. This study was registered with ClinicalTrials.gov, NCT03471494. Findings: Between April 1, 2018, and Jan 31, 2019, we enrolled 15 958 patients from 428 hospitals in 82 countries (high income 9106 patients, 31 countries; upper-middle income 2721 patients, 23 countries; or lower-middle income 4131 patients, 28 countries). Patients in LMICs presented with more advanced disease compared with patients in high-income countries. 30-day mortality was higher for gastric cancer in low-income or lower-middle-income countries (adjusted odds ratio 3·72, 95% CI 1·70–8·16) and for colorectal cancer in low-income or lower-middle-income countries (4·59, 2·39–8·80) and upper-middle-income countries (2·06, 1·11–3·83). No difference in 30-day mortality was seen in breast cancer. The proportion of patients who died after a major complication was greatest in low-income or lower-middle-income countries (6·15, 3·26–11·59) and upper-middle-income countries (3·89, 2·08–7·29). Postoperative death after complications was partly explained by patient factors (60%) and partly by hospital or country (40%). The absence of consistently available postoperative care facilities was associated with seven to 10 more deaths per 100 major complications in LMICs. Cancer stage alone explained little of the early variation in mortality or postoperative complications. Interpretation: Higher levels of mortality after cancer surgery in LMICs was not fully explained by later presentation of disease. The capacity to rescue patients from surgical complications is a tangible opportunity for meaningful intervention. Early death after cancer surgery might be reduced by policies focusing on strengthening perioperative care systems to detect and intervene in common complications. Funding: National Institute for Health Research Global Health Research Unit

Effects of hospital facilities on patient outcomes after cancer surgery: an international, prospective, observational study

© 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licenseBackground: Early death after cancer surgery is higher in low-income and middle-income countries (LMICs) compared with in high-income countries, yet the impact of facility characteristics on early postoperative outcomes is unknown. The aim of this study was to examine the association between hospital infrastructure, resource availability, and processes on early outcomes after cancer surgery worldwide. Methods: A multimethods analysis was performed as part of the GlobalSurg 3 study—a multicentre, international, prospective cohort study of patients who had surgery for breast, colorectal, or gastric cancer. The primary outcomes were 30-day mortality and 30-day major complication rates. Potentially beneficial hospital facilities were identified by variable selection to select those associated with 30-day mortality. Adjusted outcomes were determined using generalised estimating equations to account for patient characteristics and country-income group, with population stratification by hospital. Findings: Between April 1, 2018, and April 23, 2019, facility-level data were collected for 9685 patients across 238 hospitals in 66 countries (91 hospitals in 20 high-income countries; 57 hospitals in 19 upper-middle-income countries; and 90 hospitals in 27 low-income to lower-middle-income countries). The availability of five hospital facilities was inversely associated with mortality: ultrasound, CT scanner, critical care unit, opioid analgesia, and oncologist. After adjustment for case-mix and country income group, hospitals with three or fewer of these facilities (62 hospitals, 1294 patients) had higher mortality compared with those with four or five (adjusted odds ratio [OR] 3·85 [95% CI 2·58–5·75]; p<0·0001), with excess mortality predominantly explained by a limited capacity to rescue following the development of major complications (63·0% vs 82·7%; OR 0·35 [0·23–0·53]; p<0·0001). Across LMICs, improvements in hospital facilities would prevent one to three deaths for every 100 patients undergoing surgery for cancer. Interpretation: Hospitals with higher levels of infrastructure and resources have better outcomes after cancer surgery, independent of country income. Without urgent strengthening of hospital infrastructure and resources, the reductions in cancer-associated mortality associated with improved access will not be realised. Funding: National Institute for Health and Care Research