Riviste Online SApienza - R.O.SA - 2 (Sapienza University of Rome)
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    1407 research outputs found

    Centri e periferie. Spazi (e) immaginari politici nell’altipiano guatemalteco

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    This article examines the interactions and transformations of indigenous political spaces in the Guatemalan highlands. With the end of the internal armed conflict (1996), the emergence – and dispersion – of the Maya Movement, confronting the neoliberal turn of the new millennium, poses new challenges to familiar forms of state spatialization. The ambiguous decentralization processes are articulated with endogenous processes and global phenomena, paving the way for unpredictable and locally differentiated dynamics. These dynamics reveal how communities acquire a new “centrality” in constructing Guatemalan society and state, rooted locally but projected nationally and globally

    La protezione spagnola su Ferrara estense: un tentativo (seconda metà del XVI secolo)

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    The talks for the Spanish protection upon the Este dukedom (1570-72) were one of the most important negotiations of the Este diplomacy in the Seventies of the 16th century. Although failed, due especially to the hubris and opportunistic temporizing of duke Alphonse II of Este and the well-known prudence of Philip II, these negotiations are an interesting subject of study, because they show the main characteristics of the Este diplomacy in Spain between the peace of Cateau-Cambrésis (1559) and the devolution of the capital Ferrara to the Papacy (1598)

    Remote sensing technologies supporting rockfall hazard assessment for transportation routes management

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    Remote sensing technologies offer enhanced capabilities for the assessment of rockfall hazard impacting transportation networks and the related risk management. This study examines the application of UA V-based photogrammetry and terrestrial laser scanning (TLS) for comprehensive geomechanical characterisation of rock masses, as well as the potential of photomonitoring techniques for slope stability assessment. A rock cliff located between the towns of Minori and Maiori (SA , Italy) was selected as the test site. Photogrammetric surveys were conducted using DJI Mavic 3 and DJI Matrice 200 aerial platforms. The surveys were performed at two flight distances (15 and 35 meters) for a portion of the rock face to investigate the effect of camerato-subject range on the resulting point cloud properties. The derived point clouds were analysed to extract geostructural and geomechanical parameters, including discontinuity orientation, normal spacing, Jv, RQD, and block volumes. Semi-automatic analyses demonstrated the viability of both photogrammetric and TLS approaches, while highlighting the need for methodological adaptations in the photogrammetric method due to reconstruction challenges posed by the installed protective rockfall net. Additionally, the study explored the use of photomonitoring for change detection of natural slopes, highlighting its potential as a complementary technique. The integration of multiple remote sensing methods provides a robust framework for slope stability assessment and management, contributing to enhanced transportation infrastructure resilience

    Trend Analysis of Snow Cover Changes Using Statistical Downscaling Model and Climate Scenarios in Sefid-Rud Basin (Iran)

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    Investigating the status of snow cover and possible changes due to climate change is a vital and important issue. In the present study, snow cover change trends, possible effect of climatic parameters on these changes and future forecastsof snow cover of Sefid-Rud Basin are investigated using 8-day MOD10A2 products of moderate resolution imaging spectroradiometer (MODIS) sensor for the period 2000-2019. After preparing the snow cover map of all the images of thestudy period, the percentage of snow cover is determined. In each of the 11 subbasins, one pixel is selected to demonstrate the results in more detail. Then based on the climate parameters of the CanESM2 climate model from the fifth climate change report (FCCR) and utilizing the statistical downscaling model (SDSM), climate parameters effective in changes of snow cover of the 11 pixels for the period of 2000-2005 are determined. To validate the effect of these results on snow cover change patterns, the results of the 2006-2019 period are compared with the snow cover obtained from satellite images. Finally, by determining the relationship between climatic parameters and snow cover and according to the scenarios of FCCR, the snow cover of the 11 pixels is calculated for the period 2020-2100. The study of the effect of CanESM2 climatic parameters on snow cover shows that at all 11 pixels, several climatic parameters, particularly temperature and wind speed, impacted the snow cover change patterns. Therefore, to predict future snow cover, climatic data are used based on the scenarios, indicating that snow cover would decrease sharply based on the two scenarios RCP4.5 and RCP8.5, particularly RCP8.5. The results of the model validation and comparison with satellite data show that the accuracy of the SDSM in predicting snow cover is acceptable

    Insular dwarfism in Akymnopellis chilensis (Gervais, 1847) centipedes from the Humboldt Archipelago, Chile (Chilopoda: Scolopendromorpha, Scolopendridae)

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    Body size is a key morphological trait that reflects both the evolutionary history and ecological processes of species and is commonly used in assessing biogeographic patterns. Foster’s rule predicts changes in body size associated with insularity, often manifested as dwarfism or gigantism. In this study, we tested this rule in Akymnopellis chilensis (Gervais, 1847) (Chilopoda, Scolopendromorpha), using specimens from the Humboldt Archipelago (Chile) and the mainland. Robust statistical analyses and generalized linear models reveal that insular individuals exhibit significantly reduced body sizes relative to mainland populations. Furthermore, mean annual temperature emerged as a key predictor of body size variation. This study provides the first documented evidence of insular dwarfism in myriapods, extending the applicability of Foster’s rule to a previously underrepresented group of terrestrial arthropods. Our findings underscore the importance of insularity and climate change as selective pressures influencing the morphological evolution of invertebrates, with implications for the conservation of endemic taxa in fragile island ecosystems

    Geography and law: a method for analysing legal cases in geographical research

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    The article provides a comprehensive methodology for reading and analyzing legal cases from a legal-geographic perspective. Despite increasing international recognition and growth of legal geography, the analysis of legal texts and cases remains foreign to the skillset and methods of most geographers. However, such a skill may be highly useful and desirable in the context of legal-geographic research, as it enables engagement with the work of jurists and courts, thus increasing the interdisciplinary exchanges between geography and law. The article provides a methodology that may allow geographers this interaction, focusing specifically on case-law analysis. The method is explained through practice, by reading and analyzing two decisions by the European Court of Human Rights. This article directs attention to how geographers approaching legal cases must first be able to read them within their context, thus understanding the fundamental rules, parameters, and concerns that drive a court’s decision

    Il PSI e lo squadrismo nella Terra di Bari nel primo dopoguerra

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    This article explores the causes of political violence in the province of Bari after the First World War. It examines the conflicts between squadristi and socialist militants (and, to a lesser degree, communist militants) during the period of political turmoilthat followed the war in Italy. The article is based on archival documentation preserved at the Italian Archivio Centrale dello Stato and Archivio di Stato di Bari, as well as on the analysis of “Puglia Rossa” (“Red Apulia”), the Socialist Federation’s press organ in the province of Bari

    Comment on the article “Engineering-geological insights into the gypsum-bearing deposits of Punta delle pietre nere (puglia region, italy)”: [IJEGE, Special Issue 1 (2024): 39-45, DOI: 10.4408/IJEGE.2024-01.S-05]

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    The present comment article discusses the recent paper by Calcaterra et alii (2024), in which they present the results of site-specific investigations in the Punta delle Pietre Nere area, enabling to better understand the buried limits of the chalky deposits, their depth, the geological characteristics of the covering soils and the groundwater flow conditions. According to these Authors, the distribution of gypsum-bearing deposits in the subsoil of the area is now better defined than in the past, when the uncertainty of the data represented a factor strongly limiting the local possibilities of settlements’ development. The present comment highlights as, unfortunately, the paper by Calcaterra et alii (2024) does not at all reduce the uncertainties of the literature data, many of which neglected and not discussed by these Authors

    First records of the false click beetle Isorhipis marmottani from Italy (Coleoptera: Eucnemidae)

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    The rare central European beetle Isorhipis marmottani (Bonvouloir, 1871) is here reported for the first time from Italy (Emilia Romagna/Tuscany regions, Sasso Fratino Integral Nature Reserve). The currently known distribution, ecology, and biology, as well as the habitat of the species in the study area are briefl y discussed

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