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Situated at the southernmost limits of the late Pleistocene Eurasian permafrost zone, the loess–paleosol sequences of the Lower Volga region contain numerous traces of cryogenesis. Cryogenic features are represented by thin vertical wedges in loess and paleosols, and involutions and wedges in alluvial deposits. Here we describe and interpret four stages of cryogenesis during the late Pleistocene, based on analysis of cryogenic structure morphology, morphoscopy of quartz grains, and micromorphology of subaerial sediments, in addition to calculation of the Cryogenic Weathering Index and a new luminescence chronology derived from published ages. These stages differ in type and distribution of cryostructures and formed in different paleogeographic conditions. Stage I, dated 95–90 ka (Marine Isotope Stage [MIS] 5b), is characterized by the existence of continuous permafrost in northern part of the Lower Volga valley. Stage II (75–70 ka, MIS 5a/MIS 4) is characterized by dry and cold conditions and widespread permafrost. During stage III (52–45 ka, MIS 3b/c), the permafrost was thin and of sporadic distribution. Stage IV (37–35 ka, MIS 3a) is characterized by thin and rare sporadic permafrost. The processes of cryogenic transformation of sediments in the region during these stages took place under both permafrost and seasonal frost conditions. The results obtained significantly improve current understanding of the extent of the permafrost in the south of the East European Plain during the late Pleistocene.
This article demonstrates how the application of a broad and decontextualized distinction between “moderate” and “extremist” Muslims can undermine our assessment of an Islamic identity, security, and radicalization. It compares how this distinction has been used by the British colonial administrators (in Raffles, Crawfurd, Marsden, and Swettenham) in nineteenth-century Malaya and by Malaysia's Prime Ministers (Mahathir, Badawi, and Najib) in the late-twentieth and early-twenty-first centuries. This comparison demonstrates that both groups, despite their very different backgrounds (Western non-Muslim and Muslim non-Western), introduced a similar distinction between “moderate” and “extremist” driven more by socio-political objectives than by religious ones. Furthermore, the article stresses the importance of considering the socio-political and contextual dimensions of Islamic identity before attempting to explain the process of radicalization and its implications for security. Such an approach discourages reference to broad categories such as “moderate,” “extremist,” “Islamism,” or “Salafism,” and allows for discussion of their contextual and socio-political connotations.
Notre recherche visait à mettre en lumière les pratiques bientraitantes des préposées aux bénéficiaires en milieux d’hébergement pour aînés au Québec. L’objet de l’article est de faire ressortir la dichotomie entre les définitions de la bientraitance et son opérationnalisation. Dans la première partie, la notion de bientraitance dans le cadre de deux politiques gouvernementales québécoises est présentée. Ensuite, il est question du travail des préposées aux bénéficiaires en tant que vectrices de cette bientraitance dans la pratique. La troisième partie présente les résultats de notre recherche qui viennent soulever trois constats remettant en cause l’applicabilité des politiques publiques en cette matière : l’absence de reconnaissance d’un métier par définition bientraitant; les injonctions normatives à l’encontre du sens attribué à la bientraitance, et les obstacles organisationnels et sociopolitiques à la bientraitance. Ces constats sont réexaminés à la lumière des écrits dans la discussion, laquelle ouvre sur la notion de maltraitance organisationnelle.
A growing body of evidence demonstrates that individual differences in declarative memory may be an important predictor of second language (L2) abilities. However, the evidence comes from studies using different declarative memory tasks that vary in their reliance on verbal abilities and task demands, which preclude estimating the size of the relationship between declarative memory and L2 learning. To address these concerns, we examined the relationship between verbal and nonverbal declarative memory abilities within the same task while controlling for task demands and stimulus modality, to estimate the upper bound of the relationship between verbal and nonverbal declarative memory. Results indicate that when task demands and stimulus modality are controlled, verbal and nonverbal declarative memory abilities shared a medium-to-large amount of underlying variance. However, future studies should exercise caution in appraising associations between declarative memory abilities and L2 learning until a more precise understanding of the underlying mechanisms is achieved.
The waterscape, including the sea, rivers, and lakes, was highly important to communities living during the Nordic Early Bronze Age (1800/1700–1100 bc). Waterways acted as highways that facilitated journeys, trade, and warfare, enabling maritime warriors and others to distinguish themselves. This is reflected in the maritime location of rock art and important Early Bronze Age burials, which have been used to reconstruct the Nordic Bronze Age cosmology. This centres on the journey of the sun across the sky during the day, and the underworld during night. This article analyses the use of water-related resources, such as seaweed, petrified organics, beach pebbles, and molluscs, in the construction of burials, which has received little attention despite renewed interest in the maritime seascape. The data demonstrate that local communities used different resources, indicating that a common belief system was realised in local differences. These marine materials were collected from the beach, which can be conceptualised as the liminal zone between the land of the living and the sea of the dead. It is suggested that these materials, in line with other funerary practices, helped to guide the recently deceased into the afterlife in the sea.
We took a multilevel developmental contextual approach and characterized trajectories of alcohol misuse from adolescence through early midlife, examined genetic and environmental contributions to individual differences in those trajectories, and identified adolescent and young adult factors associated with change in alcohol misuse. Data were from two longitudinal population-based studies. FinnTwin16 is a study of Finnish twins assessed at 16, 17, 18, 25, and 35 years (N = 5659; 52% female; 32% monozygotic). The National Longitudinal Study of Adolescent to Adult Health (Add Health) is a study of adolescents from the United States, who were assessed at five time points from 1994 to 2018 (N = 18026; 50% female; 64% White, 21% Black, 4% Native American, 7% Asian, 9% Other race/ethnicity). Alcohol misuse was measured as frequency of intoxication in FinnTwin16 and frequency of binge drinking in Add Health. In both samples, trajectories of alcohol misuse were best described by a quadratic growth curve: Alcohol misuse increased across adolescence, peaked in young adulthood, and declined into early midlife. Individual differences in these trajectories were primarily explained by environmental factors. Several adolescent and young adult correlates were related to the course of alcohol misuse, including other substance use, physical and mental health, and parenthood.
There is evidence that seaweed production can involve a variety of physical risks, but there has been little study of how wider contextual factors – such as enterprise size, economic and business relations, and forms of employment arrangements – may affect workers’ safety. This study explores the impact of such aspects on workers’ experiences of occupational safety and health (OSH) risks and their management in the developing seaweed industry, in North West Europe. Based on qualitative findings from a survey and discussions with owners/managers, workers and stakeholders in the industry, the study identified a number of issues relating to OSH in seaweed production. These include the predominance of micro small enterprises, the presence of significant risks to health and safety and limitations in the capacity of owners/managers to address them, as well as structural and economic factors in the sector that promote precarious work, and the low visibility and inaccessibility of micro and small enterprises (MSEs) to both public and private regulations. The paper discusses experiences of these issues in the emergent industry and relates them to the wider literature about work health and safety in micro and small firms and precarious and non-standard forms of work, typically found in agriculture and food production. Findings point to the need for better orchestration of public and private regulatory influences and further research to determine if strategies that are seen as successful in other sectors could be transferred to the emergent European seaweed industry.
In this note, we present examples of non-quasi-geodesic metric spaces which are hyperbolic (i.e., satisfying Gromov’s $4$-point condition) while the intersection of any two metric balls therein does not either ‘look like’ a ball or has uniformly bounded eccentricity. This answers an open question posed by Chatterji and Niblo.
Extensive research shows that tests of executive functioning (EF) predict instrumental activities of daily living (IADLs) but are nevertheless often criticized for having poor ecological validity. The Modified Six Elements Test (MSET) is a pencil-and-paper test that was developed to mimic the demands of daily life, with the assumption that this would result in a more ecologically valid test. Although the MSET has been extensively validated in its ability to capture cognitive deficits in various populations, support for its ability to predict functioning in daily life is mixed. This study aimed to examine the MSET’s ability to predict IADLs assessed via three different modalities relative to traditional EF measures.
Method:
Participants (93 adults aged 60 – 85) completed the MSET, traditional measures of EF (Delis-Kaplan Executive Function System; D-KEFS), and self-reported and performance-based IADLs in the lab. Participants then completed three weeks of IADL tasks at home, using the Daily Assessment of Independent Living and Executive Skills (DAILIES) protocol.
Results:
The MSET predicted only IADLs completed at home, while the D-KEFS predicted IADLs across all three modalities. Further, the D-KEFS predicted home-based IADLs beyond the MSET when pitted against each other, whereas the MSET did not contribute beyond the D-KEFS.
Conclusions:
Traditional EF tests (D-KEFS) appear to be superior to the MSET in predicting IADLs in community-dwelling older adults. The present results argue against replacing traditional measures with the MSET when addressing functional independence of generally high-functioning and cognitive healthy older adult patients.
Daniel Laqua's recent monograph Activism across Borders Since 1870: Causes, Campaigns and Conflicts in and beyond Europe raises a number of pertinent issues for historians of human rights to reflect upon. This article takes the four analytical lenses highlighted by Laqua for assessing transnational activism and applies them to cases of human rights activism in the Cold War and post-Cold War era. In doing so, this article argues that Laqua's framework offers much scope for historians to approach the history of human rights activism with a more critical edge. It also highlights the challenge of retaining an analytical focus on an issue as emotive and complex as human rights, and how Laqua's lenses may offer a practical methodology to do this.
Pregnancy-related physiological adaptations result in increased heart rate as well as electrocardiographic changes such as a mean QTc prolongation of 27 ms. Pregnant women with CHD are at increased risk for cardiovascular complications. The aim of this study was to identify risk factors for abnormally prolonged QTc interval—a risk factor for ventricular arrhythmias—in pregnant women with CHD.
Material and method:
Retrospective longitudinal single-centre study. Pre-pregnancy demographic and electrocardiographic risk factors for abnormal QTc duration during pregnancy of (a) > 460 ms and (b) >27 ms increase were analyzed.
Results:
Eighty-three pregnancies in 63 women were included, of which three had documented arrhythmias. All five Modified World Health Organization Classification of Maternal Cardiovascular Risk (mWHO) classes were represented, with 15 pregnancies (18.1%) in mWHO class I, 26 (31.3%) in mWHO II, 28 (33.7%) in mWHO II-III, 11 (13.3%) in mWHO III, and three pregnancies (3.6%) in mWHO class IV. Heart rate and QTc interval increased, while QRS duration and PR interval shortened during pregnancy. QTc duration of > 460 ms was associated with increased pre-pregnancy QTc interval, QRS duration, and weight, as well as body mass index. QTc increase of > 27 ms was associated with increased heart rate prior to pregnancy. No significant associations of electrocardiographic changes with mWHO class or CHD type were identified.
Conclusion:
Increased QTc in pregnant women with CHD was associated with being overweight or having higher heart rate, QRS, or QTc duration prior to pregnancy. These patients should be monitored closely for arrhythmias during pregnancy.
The town of Mirny, which was established in 1955 in the Arctic region of Yakutia, was not only the first Soviet settlement constructed near the newly explored diamond mine; it was also one of the first industrial towns in the Soviet Arctic to be constructed from scratch in the post-World War II period, as it was never part of the Gulag legacy. Focusing on the case of Mirny, this article elucidates the new principles behind the perception of urban space in the Soviet Arctic in the 1960s. Close analysis of the first years of the town’s construction illuminates the formation of a new conception of a socialist Arctic town at that period – a town open for migration flows, with a developed public and social sphere, that was celebrated as a ‘town of youth’ or a ‘town of the future’, and yet was also a town where extreme environmental conditions had a greater influence on the life of its inhabitants than did official state directives and regulations.
Taiwan is an island and trade has always been the locomotive of its economic development. From the 1620s to the 1960s, cane sugar was Taiwan's most representative export commodity. Yet little attention has been paid to the business strategies of sugar traders and the changes in their thinking. How did the Takow (Kaohsiung) merchants who first went to Japan and Hong Kong to conduct cross-border trade in person learn about international trade and build a network of human resources that crossed borders, especially after the 1870s? And how did they face the great changes of an era in which tradition and modernity were intertwined, so that, following the regime transfer in the 1890s from the Qing Dynasty to the Japanese empire, they were able to expand their business territory and become major sugar merchants in southern Taiwan?
This article examines the career of Wang Xuenong—a well-known sugar merchant in Taiwan during the Meiji period (1868–1912). It attempts to explain, from the perspective of cross-cultural knowledge transfer and human resource strategies, why and how sugar merchants such as Wang, who had gone to Japan in the early years of the Meiji Restoration for purposes of cross-border trade, introduced a trading company system that incorporated a mixture of East Asian and Western elements. It further investigates how they expanded their business from the sugar trade into a wider commercial domain that included mechanical rice milling and steamship transport. Finally, it looks at how their actions affected a transformation of Taiwan's commercial culture from the late Qing Dynasty to the early days of Japanese rule, and the historical significance of these changes in Taiwan's transitions towards industrialisation and modernisation.