scholarly journals Droni e fotogrammetria moderna per il rilievo dei castelli

X ◽  
2020 ◽  
Author(s):  
Antonio Pecci

Drones and modern photogrammetry for castlesCastles, often built on hills with extremely steep slopes, or on sea cliffs overlooking stretches of water, were difficult to conquer. Construction techniques and geomorphology of the area were a key factor in making castles impregnable to sieges of military troops or bands of pirates or robbers. Today, the same characteristics make them difficult to survey. In fact, there are huge difficulties in surveying fortified structures on the top of hills or on the edge of a precipice. Such geomorphological features sometimes make the survey difficult, time consuming and expensive and unsafe for operators. Today, these problems can be reduced through the use of drones and photogrammetric processing tools which are based on Structure from Motion algorythms and are easy to use. This method allows us to acquire data with geometric resolution in order to map and study masonry characteristics, as well as analyze and monitor decay and crack patterns for restoration purposes. In this paper, we will discuss the potential of drones and modern photogrammetry techniques in architectural surveys and applied to three case studies. These include the castle of Isabella Morra in Valsinni (Basilicata, South Italy), perched on a cliff; the medieval citadel of Uggiano in Ferrandina (Basilicata, South Italy) in an advanced state of degradation and on a plateau with high geological risk; and the San Fernando Fuerte to Bocochita (Cartagena de Indias, Colombia) overlooking the sea.

Author(s):  
Hedvig Landenius Enegren

Textiles are perishables in the archaeological record unless specific environmental conditions are met. Fortunately, the textile tools used in their manufacture can provide a wealth of information and via experimental archaeology make visible to an extent what has been lost. The article presents and discusses the results obtained in a research project focused on textile tool technologies and identities in the context of settler and indigenous peoples, at select archaeological sites in South Italy and Sicily in the Archaic and Early Classical periods, with an emphasis on loom weights. Despite a common functional tool technology, the examined loom weights reveal an intriguing inter-site specificity, which, it is argued, is the result of hybrid expressions embedded in local traditions. Experimental archaeology testing is applied in the interpretation of the functional qualities of this common artefact.


2013 ◽  
Vol 44 (2s) ◽  
Author(s):  
Pietro Catania ◽  
Mariangela Vallone ◽  
Felice Pipitone ◽  
Gioacchino Francesco Argento ◽  
Giuseppe Spartà ◽  
...  

In environments characterized by steep slopes or arranged in terraces, among the shallow tillage systems, rototilling is extensively used. However, the effect of the repeated use of rototilling has a considerable influence on soil characteristics; it appears finely powdered, soft and without structure. In order to limit these inconveniences, an innovative self-propelled machine equipped with working tools as a spade, to be used in steep slopes or arranged in terraces areas, was designed by the Mechanics Section of the SAF (Scienze Agrarie e Forestali) Department of the University of Palermo in cooperation with Agrotec company, Padua, Italy. The aim of this study is to compare the effects of three machines for shallow tillage: a chisel plough (CP), a rototilling (RT) and a spading machine (SM) on penetration resistance in semi-arid environments of the Mediterranean basin. No tillage was also included. Penetration resistance (PR) was surveyed for all the treatments to a depth of 300 mm with an electronic dynamometer. The treatments consisted in the execution of a shallow tillage to a depth of 150 mm. SP treatment allowed us to obtain PR lower values throughout the tillage profile than RT, CP and NT. It follows that the type of machine used influences soil PR, and then the soil water storage capacity, key factor for the agricultural productions in semi-arid environments as in Sicily.


Author(s):  
Concetta Lucia Cristofaro ◽  
Anna Maria Melina ◽  
Rocco Reina

Knowledge transfer is essential to managing a family firm's succession. Given the importance of knowledge in family firms, this chapter identifies, through an empirical approach, which are the main organizational strategies used for sharing, disseminating, and using the knowledge available as fundamental elements for survival and the development of companies in the phase of generational succession. The authors investigate the phenomenon and verify the evidence in some private health organizations interested in the generational change located in South Italy, given the lack of previous case studies. This chapter deepens the phenomenon and its recognizability by examining with a qualitative analysis of the problems existing in those who are currently living or have experienced this particular moment of business life.


Aerospace ◽  
2020 ◽  
Vol 7 (10) ◽  
pp. 140
Author(s):  
Pei-Chi Shao

Resulting from a mature accomplishment of the unmanned aircraft system (UAS), it is feasible to be adopted into logistic delivery services. The supporting technologies should be identified and examined, accompanying with the risk assessment. This paper surveys the risk assessment studies for UAVs. The expected level of safety (ELS) analysis is a key factor to safety concerns. By introducing the UTM infrastructure, the UAS implementation can be monitored. From the NASA technical capability level (TCL), UAV in beyond visual line of sight (BVLOS) flights would need certain verifications. Two UAS logistic delivery case studies are tested to assert the UAS services. To examine the ELS to ground risk and air risk, the case studies result in acceptable data to support the UAS logistic delivery with adequate path planning in the remote and suburban areas in Taiwan.


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S159-S160
Author(s):  
Stephen Crystal ◽  
Richard Hermida ◽  
Olga F Jarrín ◽  
Sheree Neese-Todd ◽  
Beth Angell ◽  
...  

Abstract In conjunction with the National Partnership to Improve Dementia Care in Nursing Homes initiated in 2012, states implemented initiatives to reduce antipsychotic use. All achieved substantial reductions, but improvement varied across states. By 2018, several states had achieved reductions of more than 45%, including several of the largest states. These reductions are noteworthy given the challenging nature of behavioral symptoms of dementia, and difficulties encountered historically and internationally in changing strongly-rooted clinical practices. How were these successful interventions achieved in high-performing state initiatives? What were the barriers encountered and facilitators that helped overcome these barriers? What does this experience suggest for sustainability of change? To address these questions, we draw on a mixed-methods study of antipsychotic prescribing in nursing homes incorporating analyses of prescribing data, state policy case studies, and facility case studies. Successful states integrated large-scale educational initiatives with strong regulatory action, often focusing especially on laggard facilities. Texas’ initiative was particularly noteworthy, achieving a 56.5% reduction across its far-flung network of nearly 100,000 residents and 1,200 facilities. Texas used metrics to identify facilities that achieved notable reductions in antipsychotic prescribing, and encouraged them to share their strategies with “late adopters”. The state deployed a designated Quality Monitoring Program (QMP), distinct from the survey process, to provide on-site technical assistance to laggard facilities, and provided education for all levels of staff and assistance in implementing data-driven improvement strategies. Successful state initiatives achieved considerable buy-in on the need to reduce antipsychotic use, a key factor in achieving successful system change.


2020 ◽  
Vol 4 ◽  
pp. 46-60
Author(s):  
Emperatriz Londoño Aldana ◽  
Wilson Enrique Pérez Ríos ◽  
Marilyn Guzmán Bermúdez

Este trabajo busca establecer los cambios comerciales y del entorno generados por el Centro Comercial San Fernando y el Hiperalmacén Homecenter. Es una investigación descriptiva, en el cual se aplicó un formato estructurado de observación y cuestionarios a los moradores de la zona de influencia. Los resultados hacen referencia a la transformación de viviendas en locales comerciales, vivienda mixta y construcción de comercios en lotes vacíos. Se concluye con la existencia de un inequitativo mejoramiento de la infraestructura vial y de servicios públicos en el área de inmediata influencia y cambios en el comportamiento de compra de los moradores de los barrios aledaños.


2021 ◽  
Vol 27 (2) ◽  
pp. 8-21
Author(s):  
Flaminia Saccà ◽  
Donatella Selva

In the context of the Covid-19 meta-crisis, leadership styles have emerged as a key factor for determining a country’s ability to contain the contagion and recover. In what follows, we want to explore the features of such leadership styles by taking a gender perspective. This article argues that women leaders have successfully governed the crises originated by the pandemic not only because of their inherent ability to build relationships, enhance community bonds, and “tune” with the anxieties of citizens; the women leaders’ approach to science has proven to be decisive as well. Contrarily to common-sense expectations, when compared with men leaders, women have demonstrated to be more responsive and attentive to scientific advice, and to use their understanding of science as a factor of legitimacy. Our data are based on a wider research project granted by the Italian Ministry of Research and coordinated by prof. Saccà. We have analyzed the discourses of two case studies, Donald Trump and Jacinda Ardern, as they identify ideal-typical features of two opposing leadership styles as far as science is concerned. The analysis of rhetorical formulas and frames highlight the differences in their discourses and approaches and proves how the women leaders’ ability of listening to experts’ advice and the needs of specific sectors of the population has been decisive for the success of the measures of containment of the virus.


Author(s):  
Rallou Taratori ◽  
Paulina RODRIGUEZ Fiscal ◽  
Marie Abigail Pacho ◽  
Sesil Koutra ◽  
Montserrat Pareja-Eastaway ◽  
...  

Despite the rising interest in smart city initiatives worldwide, governmental theories along with the managerial perspectives of city planning are a great lack in the literature. It is definitely understandable that the adoption of configurational pathways towards the ‘smart’ ‘governance’ models is required as key factor and smartness’ facilitator in modern cities. In this manuscript, we display an exhaustive analysis on the importance of the n-Helix models along with a benchmarking critical approach through selected European case-studies. The study, through the literature review, revealed the lack of exhaustive analyses for the methodological investigation, identification and adoption of the most appropriate governance model and collaborative approaches per project and collaborative approaches and create modular frameworks to address efficiently the continuous urban challenges, such as the rapid urbanization or the climate change.


Diachronica ◽  
2019 ◽  
Vol 36 (2) ◽  
pp. 181-221
Author(s):  
Iván Igartua

Abstract Despite its alleged relative stability, grammatical gender has nevertheless been completely lost in a number of languages. Through the analysis of three case studies (Afrikaans, Ossetic, and Cappadocian Greek) and a brief survey of similar developments in other languages, this article investigates the link between the loss of gender and language contact, which appears to be a key factor in the decline of gender systems. Drawing on recent research within the framework of sociolinguistic typology, I focus on the specific influence that a particular type of language contact (namely, non-native or imperfect learning) usually exerts on the grammar of the languages being acquired. I also discuss the diachronic asymmetry between the loss and the development of gender in language contact settings: while gender loss seems to be contact-related in quite a number of cases, replication or borrowing of gender turns out to be a rather restricted or even rare phenomenon.


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