Investigation on the damages induced by slope movements on historic buildings: the case of San Nicol\uf2 di Capodimonte church in Liguria

ABSTRACT: Italy has more cultural heritage to preserve than any other country on earth and, unfortunately, it is ex-posed to several nature hazards that pose in a serious risk historical buildings located in critical areas. A specific research is underway with the aim of proposing a methodology to analyze the effects and damage induced by slope movements on historic buildings and churches. In this context, some case histories have been selected. The case study proposed in the paper is the Romanic church of S.Nicol\uf2 di Capodimonte located on the Portofino promontory (Liguria), which vulnerability is particularly increased by its loca-tion, as demonstrated by existing crack patterns presently under monitoring. After data collection, several numerical analyses were performed, changing hazard scenarios. The results have been compared with the damage in the church, allowing the interpretation of the crack pattern according to the direction of movement. Finally, an assessment of the damage level has been performed, which shows the critical con-text for the monument under investigation

Identification and modelling of displacement fields due to slope movements for the vulnerability analysis of historic buildings

ABSTRACT: Modelling the influence of deep excavations or tunnelling on the serviceability of existing buildings is a well-known geotechnical engineering problem, while the knowledge and scientific contri-butions referable to the assessment of the damage induced by landslide movements on buildings are lack-ing. The present study concerns the analyses of slope movements, in order to be able to define an intensi-ty parameter useful for the definition of fragility curves for historic buildings subjected to slow slope movements. For this purpose, several numerical analyses have been carried out to assess the pattern of displacement in slope under free-field conditions, as the geometric and geotechnical characteristics of the slope vary. These variations are associated with the relative global slope safety factors, which be-come the reference intensity parameter in the analyses. The results have been obtained in terms of verti-cal and horizontal strains in different sections of interest along the slope, which have been related to the relevant safety factor

Damage assessment of churches exposed to slope displacements in sliding areas

Protecting cultural heritage from water-soil interaction related threats is a current issue and the prediction of the effects of slope displacements on buildings is very challenging. The achievement of this goal is not straightforward since it usually requires high costs due to the great amount of data to be collected for setting up reliable forecasting models. Among these threats, slow moving landslides are considered in this research, because also small slope movements can seriously affect existing structures and cause damages. In this regard, the aim is to develop a simple but effective procedure to correlate the potential damage caused to soil displacements to the slope safety conditions, represented by an \u201cintensity parameter\u201d such as the slope safety factor. Churches located in, or close to, landslide areas, have been chosen as exposed structures: this choice makes the theme more challenging for the structural and geometric complexities of these particular historic buildings. Furthermore, while modelling and estimating the effects induced by deep excavations or tunnelling on existing buildings are known and widely treated geotechnical problems, the assessment of the damage caused by landslide movement has not been fully developed and only limited material exists in the literature. The procedure developed and proposed in the Thesis takes into account: i) identification and characterization of the exposed elements; ii) assessment of displacements and associated strain level components caused by slope movement via numerical analyses; iii) iii) proposal and assessment of an intensity parameter representative of deformations and stability conditions; iv) iv) assessment of damage severity levels and develop of fragility curves, v) v) validation of the proposed approach

The Role of α-Linolenic Acid and Its Oxylipins in Human Cardiovascular Diseases

α-linolenic acid (ALA) is an essential C-18 n-3 polyunsaturated fatty acid (PUFA), which can be elongated to longer n-3 PUFAs, such as eicosapentaenoic acid (EPA). These long-chain n-3 PUFAs have anti-inflammatory and pro-resolution effects either directly or through their oxylipin metabolites. However, there is evidence that the conversion of ALA to the long-chain PUFAs is limited. On the other hand, there is evidence in humans that supplementation of ALA in the diet is associated with an improved lipid profile, a reduction in the inflammatory biomarker C-reactive protein (CRP) and a reduction in cardiovascular diseases (CVDs) and all-cause mortality. Studies investigating the cellular mechanism for these beneficial effects showed that ALA is metabolized to oxylipins through the Lipoxygenase (LOX), the Cyclooxygenase (COX) and the Cytochrome P450 (CYP450) pathways, leading to hydroperoxy-, epoxy-, mono- and dihydroxylated oxylipins. In several mouse and cell models, it has been shown that ALA and some of its oxylipins, including 9- and 13-hydroxy-octadecatrienoic acids (9-HOTrE and 13-HOTrE), have immunomodulating effects. Taken together, the current literature suggests a beneficial role for diets rich in ALA in human CVDs, however, it is not always clear whether the described effects are attributable to ALA, its oxylipins or other substances present in the supplemented diets

Historic masonry churches exposed to slow-moving landslides: A critical damage assessment

This paper deals with the damage assessment of historic masonry churches exposed to slow-moving landslides. A damage survey campaign was carried out on 33 listed churches located in the Liguria region (Italy) in areas affected by slow-moving landslides. For each church, information about zoning, state of activity and direction of landslide phenomena was collected and analyzed. Knowledge of each building’s main geometric and structural features, history and past interventions was gained by means on-site surveys and archival research. A detailed field-survey of crack patterns and deformations was also performed. Based on the critical assessment of the damage observed, preliminary conclusions on the structural response of historic masonry churches to slow-moving landslides were made. Recurrent types of damage and damage mechanisms were also identified

Effect of Slow-Moving Landslides on Churches in the Liguria Region: a Geotechnical Approach

Protecting cultural heritage from water-soil interaction related threats is a current issue and the prediction of the effects induced on buildings by landslides is very challenging. The main difficulties lie in the lack of detailed information about landside movements as well as in the modeling of soil-structure interaction. This paper study the effects of a particular category of slow-moving landslides, namely active rotational and translational slides with movement rates of the order of some mm/year, on buildings of historical and cultural interestsuch as churches. Three case studies located in the Liguria region (Italy) were analyzed by performing FEM and LEM numerical analyses on sections representative of the slope

Slow-Moving Landslide Damage Assessment of Historic Masonry Churches: Some Case-Studies in Italy

This paper presents a contribution for the damage assessment of historic masonry churches exposed to slow-moving landslides. In particular, the authors identified four global damage mechanisms, which are presented here by means of the critical damage assessment of four case studies located in the Liguria region (Italy) in areas affected by slow-moving landslides. For each church, a correlation between the damage patterns observed on-site and the ground movements induced by landslide phenomena was sought by means of visual inspections and crack interpretation. As a result, each damage mechanism was associated to a different pattern of ground movements produced by slow-moving landslides

Inserción a la vida universitaria: la mirada de los estudiantes en la primera etapa de su trayectoria en la Facultad de Ciencias Veterinarias

Este trabajo presenta algunos avances de una encuesta realizada recientemente a todos los ingresantes del ciclo lectivo 2018 de la Facultad de Ciencias Veterinarias que realizaron el curso de inserción a la vida universitaria. La encuesta revela la mirada que tienen los estudiantes sobre el curso de ingreso y su inserción en el mismo con el objeto de poder construir información relevante para el acompañamiento en la primera etapa de su trayectoria. El recorrido que proponemos es mostrar los datos arrojados que dan cuenta de la experiencia que tienen los jóvenes al final del curso de Inserción a la vida universitaria. Nos interesa aportar conocimiento sobre la problemática del ingreso a la universidad pública desde un registro que prioriza las dimensiones institucionales, culturales y experienciales de la vida estudiantil. Al ingresar a la universidad se produce un nuevo encuentro no solo con los conocimientos, sino también con una cultura particular, donde el sujeto necesita un determinado tiempo para conocerla y re-conocerse en ella. Al finalizar el curso sobre la inserción a la vida universitaria que dura un mes y medio, los estudiantes realizaron una encuesta con preguntas cerradas, a través de la plataforma moodle, con el objetivo de tener una primera aproximación de sus trayectorias y seguir pensando en generar dispositivos de inclusión y permanencia con recorridos y experiencias educativas diversas.Trabajo publicado en Giordano, Carlos José y Morandi, Glenda (comps.). Memorias de las 2º Jornadas sobre las Prácticas Docentes en la Universidad Pública. La enseñanza universitaria a 100 años de la reforma: legados, transformaciones y compromisos. Universidad Nacional de La Plata: La Plata, 2019.Presidenci

STUDIO SUI DANNI INDOTTI DA MOVIMENTI DI PENDIO SU CHIESE ED EDIFICI STORICI: IL CASO DELLA CHIESA DI SAN NICOL 2 DI CAPODIMONTE IN LIGURIA

Nell\u2019ambito delle attivit\ue0 di un pi\uf9 ampio progetto di ricerca relativo alla tutela e salvaguardia del patrimonio storico- culturale soggetto a fenomeni franosi, la memoria propone un caso studio riferito alla chiesa romanica di S.Nicol\uf2 di Capodimonte situata sul promontorio di Portofino (Liguria), complesso inserito nella lista dei monumenti nazionali italiani. Lo studio \ue8 stato condotto innanzitutto raccogliendo dati generali (idrogeologici, geotecnici, strutturali, sui danni, ecc.), quindi proseguendo nella loro rielaborazione. Sono state identificate dettagliate sezioni di interesse che sono state utilizzate per effettuare le analisi numeriche FEM, finalizzate a comprendere i fenomeni in atto. Sono state eseguite diverse analisi, sia in condizioni free-field, sia per tenere conto della presenza della struttura, cambiando scenari di pericolosit\ue0. Gli andamenti degli spostamenti sotto il piano di fondazione sono stati confrontati con i danni presenti nella chiesa, consentendo la lettura del quadro fessurativo anche in base alla direzione dei movimenti di versante. Infine, \ue8 stata eseguita una valutazione di massima del livello di danno, che ha permesso di identificare il contesto critico per il monumento in esame

Inserción a la vida universitaria: la mirada de los estudiantes en la primera etapa de su trayectoria en la Facultad de Ciencias Veterinarias

Este trabajo presenta algunos avances de una encuesta realizada recientemente a todos los ingresantes del ciclo lectivo 2018 de la Facultad de Ciencias Veterinarias que realizaron el curso de inserción a la vida universitaria. La encuesta revela la mirada que tienen los estudiantes sobre el curso de ingreso y su inserción en el mismo con el objeto de poder construir información relevante para el acompañamiento en la primera etapa de su trayectoria. El recorrido que proponemos es mostrar los datos arrojados que dan cuenta de la experiencia que tienen los jóvenes al final del curso de Inserción a la vida universitaria. Nos interesa aportar conocimiento sobre la problemática del ingreso a la universidad pública desde un registro que prioriza las dimensiones institucionales, culturales y experienciales de la vida estudiantil. Al ingresar a la universidad se produce un nuevo encuentro no solo con los conocimientos, sino también con una cultura particular, donde el sujeto necesita un determinado tiempo para conocerla y re-conocerse en ella. Al finalizar el curso sobre la inserción a la vida universitaria que dura un mes y medio, los estudiantes realizaron una encuesta con preguntas cerradas, a través de la plataforma moodle, con el objetivo de tener una primera aproximación de sus trayectorias y seguir pensando en generar dispositivos de inclusión y permanencia con recorridos y experiencias educativas diversas.Trabajo publicado en Giordano, Carlos José y Morandi, Glenda (comps.). Memorias de las 2º Jornadas sobre las Prácticas Docentes en la Universidad Pública. La enseñanza universitaria a 100 años de la reforma: legados, transformaciones y compromisos. Universidad Nacional de La Plata: La Plata, 2019.Presidenci