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Copyright of Papers: Revista de Sociologia is the property of Universitat Autonoma de Barcelona and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the autumn of 2015 a large number of mainly Syrian refugees arrived in Sweden. They were unevenly distributed geographically by the authorities and smaller municipalities received proportionally larger numbers than others. The schools became central in the local reception processes. They faced difficulties but also possibilities, both pedagogical, organizational and in relation to social issues. Based on participant observation and interviews with staff in six rural schools in different rural areas from an ethnographic study, in this paper we explore experiences about how schools received the new refugees and how reception influenced teaching. The analyses indicate some changes in forms of teaching (e.g. sensitivity to language differences, more explicit structuring of tasks) that became permanent as they were considered beneficial to non-migrant students as well. In contrast, there were very few signs of changes in the content of teaching, which appears to have largely remained largely the same as before the refugees came. [ABSTRACT FROM AUTHOR]

Purpose--This study will revisit and update the literature on the United States-led occupation of North Korea and explore the reasons for its failure, examining three key aspects: unclear direction and authority, prevalent extrajudicial violence, and widespread antipathy towards citizens residing in the occupied territory. Approach--This article has deployed archival research and other primary documents juxtaposed against a wide range of existing literature. Findings--This study first establishes what went wrong during the occupation of North Korean territory between October and December 1950, then determines which mistakes could have been avoided by allied authorities, demonstrating that the occupation of North Korea was subject to a series of unforced errors which substantially degraded the legitimacy of the overall United Nations effort in Korea. Originality--By incorporating new documents from UK archives, CIA digital collections, and some U.S. military papers, this article advances our understanding of the United States-led occupation of North Korea.C [ABSTRACT FROM AUTHOR]

We have analyzed the surface current characteristics along the coast of the Chinese mainland in autumn and winter by the trajectories of coastal drifters in a previous study (Yang et al., 2021). This paper is a follow-up study focusing on the surface current characteristics in spring. By the trajectories of coastal drifters in April-May 2019, we continue to analyze the characteristics of surface currents. It is indicated that: (1) the surface currents were generally southwestward along the coasts of Zhejiang and Fujian, while they flowed northeastward in the offshore area in April 2019. (2) In May 2019, the surface current in the sea area north of 28°N had a small speed without a fixed direction nearshore, but had larger speed offshore. (3) The surface currents along the Zhejiang coast were variable in April-May 2019, mainly corresponding to the change of wind field. (4) The coastal drifter is a useful instrument to observe circulation systems more precisely in nearshore but not deep ocean. [ABSTRACT FROM AUTHOR]

Spatial and temporal variations in marine litter density and composition along the Southeastern Black Sea Coast were investigated. A total of 156,371 litter items weighing 327,258.3 kg were collected. The highest frequency of litter material by number was 15,869 ± 103.88 items/m2 16 and 74.466 ± 7.23 by weight. The highest litter concentrations (77,768 items; 81,737.1 kg) were observed in autumn, mainly comprising single-use items, with plastic being the most abundant (54.05 %), followed by metal (15.69 %), and paper (10.45 %). The subcategories of plastic litter items bags, caps/lids, cigarette lighters, cosmetic packages, gloves, and plastics pieces were found to be the most abundant litter in number. According to Principal Component Analysis (PCA) and Kruskal-Wallis statistical tests (p < 0.005), significant differences in marine litter were identified among the stations and seasons. These findings offer insights for modeling studies, advocating restrictions on single-use products, and enacting legal regulations for local governance. • Plastic concentrations are at alarming levels in all stations. • Marine litter was classified into eight categories and forty-two subcategories. • Tourism, fishing, and runoff were major litter sources. • The first long-term monitoring of marine litter in Trabzon's coastal ecosystem [ABSTRACT FROM AUTHOR]

Hydrological connectivity is of great significance to the formation and development of wetlands. Identifying the causes of reduced hydrological connectivity is also critical for restoring wetland systems. Despite its importance, research to identify connectivity or blockage and quantify the impact of different drivers on wetland hydrological connectivity remains a challenge due to the lack of appropriate data at large scales. This paper quantitatively analyzed the hydrological connectivity in the Liaohe Delta wetland using multispectral Landsat series datasets from 1986 to 2020 in the Google Earth Engine (GEE) by combining water area, connectivity function value (CFV), average monthly inundation frequency. The paper also defined identification criteria for connectivity or blockage and quantified the drivers of changes in hydrological connectivity by combining the identified results with wetland classification data. The results showed that (1) over the past 35 years, water area has slightly decreased and has shown a seasonal difference, with summer, autumn, and spring in decreasing order. The spatial distribution of water has expanded from land to sea. (2) CFV decreased and connectivity blockage occurred. The maximum hydrological connectivity distance has undergone fluctuations, exhibiting a decrease in its threshold value from 62.37 km between 1986 and 2011, to 55.2 km between 2011 and 2013. Subsequently, the threshold increased back to 62.37 km between 2013 and 2014, before declining to 55.17 km between 2014 and 2020. Heavy inundation and total inundation were mainly concentrated in nascent estuary areas and shallow sea areas. (3) Connectivity blockage has been a major trend in connectivity change over the past 35 years, with the most severe blockage occurring from 2006 to 2015. The factors influencing connectivity blockage were more natural than human factors before 2006, after which human factors gradually became the dominant driving factor. Over the past 35 years, hydrological connectivity has decreased and connectivity has been blocked. Human activities have become the main factor in the blockage of connectivity in the Liaohe Delta wetland since 2006. This study provides valuable insights for the conservation and restoration of hydrological connectivity in the Liaohe Delta wetland. [ABSTRACT FROM AUTHOR]

Ozone (O 3) pollution in the atmosphere is getting worse in many cities. In order to improve the accuracy of O 3 prediction and obtain the spatial distribution of O 3 concentration over a continuous period of time, this paper proposes a VAR-XGBoost model based on Vector autoregression (VAR), Kriging method and XGBoost (Extreme Gradient Boosting). China is used as an example and its spatial distribution of O 3 is simulated. In this paper, the O 3 concentration data of the monitoring sites in China are obtained, and then a spatial prediction method of O 3 mass concentration based on the VAR-XGBoost model is established, and finnally its influencing factors are analyzed. This paper concludes that O 3 features the highest correlation with PM 2.5 and the lowest correlation with SO 2. Among the measurement factors, wind speed and temperature are the most important factors affecting O 3 pollution, which are positively correlated to O 3 pollution. In addition, precipitation is negatively correlated with 8-hour ozone concentration. In this paper, the performance of the VAR-XGBoost model is evaluated based on the ten-fold cross-validation method of sample, site and time, and a comparison with the results of XGBoost, CatBoost (categorical boosting), ExtraTrees, GBDT (gradient boosting decision tree), AdaBoost (adaptive boosting), RF (random forest), Decision tree, and LightGBM (light gradient boosting machine) models is conducted. The result shows that the prediction accuracy of the VAR-XGBoost model is better than other models. The seasonal and annual average R2 reaches 0.94 (spring), 0.93 (summer), 0.92 (autumn), 0.93 (winter), and 0.95 (average from 2016 to 2021). The data show that the applicability of the VAR-XGBoost model in simulating the spatial distribution of O 3 concentrations in China performs well. The spatial distribution of O 3 concentrations in the Chinese region shows an obvious feature of high in the east and low in the west, and the spatial distribution is strongly influenced by topographical factors. The mean concentration is clearly low in winter and high in summer within a season. The results of this study can provide a scientific basis for the prevention and control of regional O 3 pollution in China, and can also provide new ideas for the acquisition of data on the spatial distribution of O 3 concentrations within cities. • VAR model estimate the dynamic relationships of all endogenous variables. • VAR-tree model estimate the spatial and temporal distribution of O 3. • The eight-tree model improve the accuracy of O 3 change prediction. • VAR-XGBoost method solve the problem of spatial heterogeneity of the study object. [ABSTRACT FROM AUTHOR]

Copyright of China Textile Leader is the property of China Textile Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)