The Operating Venetian Lagoon - The Agency of Barene: A resilient landscape infrastructure towards ecological, cultural and productive heritage preservation

Transitional territories such as lagoons are among the most impacted and delicate environments, threatened by the combined effects of climate change and human action. This Master thesis in Landscape Architecture examines the Venetian Lagoon in North of Italy as one of the most endangered and critical cases, as the last extreme flooding event of November 2019 demonstrates. The thesis aims to address the Venetian Lagoon hydromorphological sufferance, the state of neglection of its secondary islands, and the over-engineered flood defence design as crucial issues. From the research conducted, emerges clearly the need for redefining the role of the entire Venetian Lagoon in the next future, shifting its role from passive, being exploited and consequently damaged, to active, able to sustain resiliently the rest of the territory. In order to do so, the main strategy to be pursued is to reinforce the “barene” landscape, the brackish marshlands, fundamental for the hydromorphological and ecological survival of the lagoon. These brackish marshlands are able to limit tidal and wind impact, favour water exchange and act as an expansion vessel, but, from 20th century onwards, 70% of their surface have been lost due to anthropic actions. Therefore, the goal of the thesis is to employ the agency of “barene” to mitigate the impact of anthropic and natural threats, acting as a nature-based flood defence (function), to recover hydromorphological sufferance (flow), and to support the cultural, ecological and productive heritage (form), making the Venetian Lagoon function as a sustaining landscape infrastructure. The “barene” act as pivotal means to achieve a comprehensive vision for the Venetian Lagoon where functions, flows, and forms are implemented and designed as part of a unique co-operating system. The central area of the Venetian Lagoon is chosen as project site, being the most damaged hydromorphologically. Having researched on how natural forces (tides, winds, etc.) influence this portion of lagoon, different combinations of under-water and above-water concave structures are designed in harmony with these forces, to capture suspended sediments and promote accretion. In the most compromised cases, the structures are partially supported by initial dredges. The islands of the central lagoon become the perceptive points from which experience the transformation and the growth of this new landscape. In the end, the intertwined system of “barene” and islands, once grown sufficiently and matured, will produce a beneficial effect over the hydromorphological, ecological and biodiversity, and cultural surrounding environment. Through the process of research by landscape design, the project seeks to mitigate the threats of climate change and relative sea level rise in the Venetian Lagoon; provide a nature-based flood defence; create brackish marshland’s habitat for ecosystem restoration; invest on alternative forms of slow-tourism and foster different duration of stay in Venetian lagoon; enrich local community livelihood and economical vibrancy. Moreover, the project wants to consolidate and enhance the cultural image of the Venetian Lagoon, consisting of the diffuse sense of horizontality, reflection and visibility conveyed by the diffuse and unceasing water surface.Architecture, Urbanism and Building Sciences | Landscape Architectur

Water Narratives: Exploring the Convergence of the Canal du Midi and Its Coastal Landscape

Considering ‘infrastructures as landscapes’ and ‘landscapes as infrastructures’, this article uses an open framework to reconsider the distinctive water infrastructure of France’s UNESCO-listed heritage Canal du Midi. More specifically, it profiles the Canal’s Mediterranean outlet. Viewed through a landscape architectonic lens, we investigate the canal, drawing on the theory of landscape narrative and using the illustrative method. The article identifies three crucial narratives – infrastructural, natural & environmental and social & cultural – that help to examine the spatial values of the Canal and its relationship with its southern coastal landscape. The study shows how the Canal du Midi has been transformed and has influenced its surroundings, becoming an integral part of the coastal landscape. We identify and analyse how the Canal functions as an infrastructure composition and an environmentally and culturally significant feature. The landscape narrative framework offers the possibility of sharpening the interpretation of water infrastructures beyond conventional problem-solving approaches by providing a holistic view of the Canal and its water landscapes. This, in turn, offers inspiration for the region's future development, which presently prioritises the preservation of the Canal du Midi and the regeneration of the surrounding area as distinct projects.Landscape Architectur

Visualizing Water: Using the Illustrative Method to Learn from Long-Lasting Water Systems

To analyze traditional water systems and their development over time, researchers I. Bobbink and M. Ryu developed the so-called Illustrative Method in 2017 based on former water systems studies (Bobbink and Loen 2010; Ryu 2012). The method visualizes connections between spatial, social and cultural aspects of water systems in a standardized way. It provides insight into unique local patterns, forms the foundation for comparative analysis and can ultimately inform the creation of new water systems for future sustainable development.Landscape Architectur

Trends and Outcomes of Cardiac Transplantation in the Lowest Urgency Candidates

Background Because of discrepancies between donor supply and recipient demand, the cardiac transplantation process aims to prioritize the most medically urgent patients. It remains unknown how recipients with the lowest medical urgency compare to others in the allocation process. We aimed to examine differences in clinical characteristics, organ allocation patterns, and outcomes between cardiac transplantation candidates with the lowest and highest medical urgency. Methods and Results We performed a retrospective analysis of the United Network for Organ Sharing database. Patients listed for cardiac transplantation between January 2011 and May 2020 were stratified according to status at time of transplantation. Baseline recipient and donor characteristics, waitlist survival, and posttransplantation outcomes were compared in the years before and after the 2018 allocation system change. Lower urgency patients in the old system were older (58.5 versus 56 years) and more likely female (54.4% versus 23.8%) compared with the highest urgency patients, and these trends persisted in the new system (P<0.001, all). Donors for the lowest urgency patients were more likely older, female, or have a history of cytomegalovirus, hepatitis C, or diabetes (P<0.01, all). The lowest urgency patients had longer waitlist times and under the new allocation system received organs from shorter distances with decreased ischemic times (178 miles versus 269 miles, 3.1 versus 3.5 hours; P<0.001, all). There was no difference in posttransplantation survival (P<0.01, all). Conclusions Patients transplanted as lower urgency receive hearts from donors with additional comorbidities compared with higher urgency patients, but outcomes are similar at 1 year

Circular Water Stories, Worldwide 2 edition: Traditional Water Systems Worldwide 2018/2019 and 2019/2020

Flowscapes studio - Circular Water Stories labLandscape Architectur

Impact of the new heart allocation policy on patients with restrictive, hypertrophic, or congenital cardiomyopathies.

BackgroundPatients with restrictive or hypertrophic cardiomyopathy (RCM/HCM) and congenital heart disease (CHD) do not derive clinical benefit from inotropes and mechanical circulatory support. Concerns were expressed that the new heart allocation system implemented in October 2018 would disadvantage these patients. This paper aimed to examine the impact of the new adult heart allocation system on transplantation and outcomes among patients with RCM/HCM/CHD.MethodsWe identified adult patients with RCM/HCM/CHD in the United Network for Organ Sharing (UNOS) database who were listed for or received a cardiac transplant from April 2017-June 2020. The cohort was separated into those listed before and after allocation system changes. Demographics and recipient characteristics, donor characteristics, waitlist survival, and post-transplantation outcomes were analyzed.ResultsThe number of patients listed for RCM/HCM/CHD increased after the allocation system change from 429 to 517. Prior to the change, the majority RCM/HCM/CHD patients were Status 1A at time of transplantation; afterwards, most were Status 2. Wait times decreased significantly for all: RCM (41 days vs 27 days; PConclusionsThe new allocation system has had a positive impact on time to transplantation of patients with RCM, HCM, and CHD without negatively influencing survival