ART‐P‐MAP Neural Networks Modeling of Land‐Use Change: Accounting for Spatial Heterogeneity and Uncertainty

Spatial land‐use models over large geographic areas and at fine spatial resolutions face the challenges of spatial heterogeneity, model predictability, data quality, and of the ensuing uncertainty. We propose an improved neural network model, ART‐Probability‐Map (ART‐P‐MAP), tailored to address these issues in the context of spatial modeling of land‐use change. First, it adaptively forms its own network structure to account for spatial heterogeneity. Second, it explicitly infers posterior probabilities of land conversion that facilitates the quantification of prediction uncertainty. Extensive calibration under various test settings is conducted on the proposed model to optimize its utility in seeking useful information within a spatially heterogeneous environment. The calibration strategy involves building a bagging ensemble for training and stratified sampling with varying category proportions for experimentation. Through a temporal validation approach, we examine models’ performance within a systematic assessment framework consisting of global metrics and cell‐level uncertainty measurement. Compared with two baselines, ART‐P‐MAP achieves consistently good and stable performance across experiments and exhibits superior capability to handle the spatial heterogeneity and uncertainty involved in the land‐use change problem. Finally, we conclude that, as a general probabilistic regression model, ART‐P‐MAP is applicable to a broad range of land‐use change modeling approaches, which deserves future research.     

North Africa's Spain: peripheral national identities and the nation‐state as neo‐empire

When ethno‐cultural heterogeneity exists and thrives within a nation‐state, social tension and ethno‐nationalist sentiments are not considered surprising. Yet in many nation‐states, various native‐born communities have diverse and potentially contradictory national identities without the desire for self‐determination. In this paper, I explore the circumstances in which ethno‐culturally distinct, peripheral communities may develop variants of the dominant national identity – ensuring that they remain excluded from the national narrative – yet remain part of the nation‐state. To do so, I conduct a comparative analysis of the native‐born Muslim communities in Spain's two North African exclaves. I find that most Muslims are Spanish citizens yet understandings of ‘Spanish‐ness’ appear to vary between the exclaves. I use these findings to propose further steps for refining current conceptualisations of the nation‐state, in an effort to better understand cases in which variations in the dominant national identity exist, but without ethno‐nationalist sentiments.     

The Holocene fluvial history of the Tremithos river (south central Cyprus) and its linkage to archaeological records

This study aims to reconstruct the Holocene fluvial history of the Tremithos river, south central Cyprus and examine linkages to regional and local archaeological records. Three stratigraphic profiles (Sp1, Sp2 and Sp3) located in the lower valley have been investigated using sedimentology and magnetic parameters. The ¹⁴C dating of 10 samples reveals mid-Holocene ages for Sp1 and Sp2, while the upper most part of Sp3 can be attributed to the early to mid-Holocene. Two main phases of vertical accretion have been recognised: the first, recorded in the lower most part of Sp3, could not be dated but might relate to the late Glacial period. It is not associated with any archaeological artefacts. The second, recorded in all profiles, dating from ca. 5000 to ca. cal 2800 BC, spans the Late Neolithic Sotira (cal 4800/4000 BC) and Late Chalcolithic (cal 2900–2500 BC) cultures. The sediments of Sp1 and Sp2 are up to 8–10 m thick and mainly composed of fine material. However, an intercalated phase of coarse sediment has been identified at the beginning of the third millennium BC, indicating a sudden change in river dynamics, potentially associated with the 5.2 ka rapid climate change regional event. Typical mid-Chalcolithic (ca. cal 3300–3050 BC) ceramics found in a palaeosol in Sp2 indicate for the first time human occupation of the Tremithos river terraces. Two other palaeosols have also been recognised in Sp3 and radiocarbon dated to ca. cal 5600–4100 BC and ca. cal 2900–2600 BC, respectively. These results make it possible to propose a palaeogeographic reconstruction of the Holocene evolution in the Tremithos valley and to make a preliminary assessment of the relative roles of tectonics, climate and anthropogenic forcing.     

Reconstruction of Caprine Management and Landscape Use Through Dental Microwear Analysis: The Case of the Iron Age Site of El Turó de la Font de la Canya (Barcelona,Spain)

This paper presents the results of a pilot study using dental microwear analysis on 23 sheep and goat teeth dated to the 6th century BC from the Iron Age site of El Turó Font de la Canya (Barcelona, Spain). This study aimed to reconstruct livestock management practices and landscape use. The dental microwear pattern indicates that sheep and goats could have been grazing in the same area where vegetation was composed of shrubs, bushes and non-graminaceous plants on an eroded landscape, although additional supplies of fodder cannot be excluded. This scenario is compatible with the archaeological and palaeoenvironmental data which suggest a possibly increased territoriality, land degradation and an increase of woodland clearance during Iron Age in the North-east of the Iberian Peninsula. Furthermore, we applied two recent microwear approaches which provide more information about mortality events and the possibility of distinguishing between an intensive and extensive management. This paper demonstrates how this method can be used to better understand animal husbandry practices and landscape use in Late Prehistory.     

The reception of Gall’s organology in early-nineteenth-century Vilnius

Much has been written about the development and reception of Franz Joseph Gall’s (1758–1828) ideas in Western Europe. There has been little coverage, however, of how his Schädellehre or organology was received in Eastern Europe. With this in mind, we examined the transmission and acceptance/rejection of Gall’s doctrine in Vilnius (now Lithuania). We shall focus on what two prominent professors at Vilnius University felt about organology. The first of these men was Andrew Sniadecki (1768–1838), who published an article on Gall’s system in the journal Dziennik Wileński in 1805. The second is his contemporary, Joseph Frank (1771–1842), who wrote about the doctrine in his memoirs and published an article on phrenology in the journal Bibliotheca Italiana in 1839. Both Frank and Sniadecki had previously worked in Vienna’s hospitals, where they became acquainted with Gall and his system, but they formed different opinions. Sniadecki explained the doctrine not only to students and doctors but also to the general public in Vilnius, believing the new science had merit. Frank, in contrast, attempted to prove the futility of cranioscopy. Briefer mention will be made of the assessments of Johann Peter Frank (1745–1821) and Ludwig Heinrich Bojanus (1776–1827), two other physicians who overlapped Gall in Vienna and went to Vilnius afterward. Additionally, we shall bring up how a rich collection of human skulls was used for teaching purposes at Vilnius University, and how students were encouraged to mark the organs on crania using Gall’s system. Though organology in Vilnius, as in many other places, was always controversial, it was taught at the university, accepted by many medical professionals, and discussed by an inquisitive public.