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This study aims to explore the current published research on Language Massive Open Online Courses (LMOOCs), outlining the types of papers, countries where studies were performed and institutions devoted to this field. Also, it intends to classify the reviewed literature following a general categorisation of MOOCs, and to identify the main trends and topics of interest for LMOOC researchers. Results show that there is still a lack of LMOOC-related articles in CALL (computer assisted language learning) journals, since most of the publications in the period reviewed (2012-18) are conference papers. The country in which most studies have been done so far is Spain and Universidad Nacional de Educación a Distancia (UNED) is currently the most active institution in this area. Within the taxonomy established, the most popular categories of studies focused on LMOOC participants or providers and case studies. Systematic review of the published literature indicated that research trends in LMOOCs studies comprise: 1) conceptualisation of LMOOCs and their distinctive features; 2) attempts to find the most suitable model for language teaching and learning beyond the xMOOC/cMOOC dichotomy; 3) suitability of LMOOCs for languages for specific purposes (LSP) courses; 4) focus on the learners and their motivation and experience throughout the course; 5) reflection on the new role of the teacher; 6) instructional design and how it affects participants' learning and possible attrition; and 7) importance of social learning in LMOOCs. Nevertheless, LMOOCs is still an emerging field in need of further serious studies.

Abstract: A new rove beetle species, Sinoxytelus transbaicalicus sp. nov., is described and figured from the Urey locality (Urey beds, Early Cretaceous?), Transbaikalia, Russia. Sinoxytelus is the dominant genus in the Early Cretaceous Yixian Formation of northeastern China, but this is the first report from the territory of Russia. The new species can be easily separated from the rest of its congeners by the presence of a relatively large head, transverse pronotum, and slightly tapered abdomen. In addition, the systematic position of Sinoxytelus in the extant subfamily Oxytelinae is discussed. Sinoxytelus is transferred from the tribe Oxytelini to the more basal tribe Coprophilini. [Copyright &y& Elsevier]

Abstract: Specific wounds inflicted on soldiers and officers of the Russian Army by French firearms and cold weapon and wound treatment by Russian surgeons during 1812 Napoleon''s invasion (better known in Russia as the Patriotic War of 1812) are discussed. An inference is made that the then surgical treatment was not only administered at a high level but was also versatile and efficient and thus could make a certain contribution to the victory of the Russian arms. [Copyright &y& Elsevier]

The study of the composition and depositional environments of sediments from the Mar'yanovo Formation (Upper Jurassic-Lower Cretaceous Bazhenov and Georgiev horizons) recovered by boreholes Vostok-1 and Vostok-3 in the southeastern part of the West Siberian Sea Basin revealed the following fact: in the latter hole located closer to the basin boundaries as compared with the former one, they are characterized by lower organic carbon and pyrite contents, indicating reduced salinity of the basin and higher oxidation degree of sediments. The same trend is derived from comparison of rocks from the Mar'yanovo Formation in both holes with the over- and underlying strata. In Borehole Vostok-4, the closet one to the former shoreline of the basin, the Mar'yanovo Formation is indistinguishable. Intense chemical weathering of rocks in provenances during their deposition noted by Kontorovich et al. (1971) is considered a most important factor responsible for its composition and formation conditions. Elevated influx of dissolved weathering products into the sea basin intensified its biogenic activity and stimulated the accumulation of high organic matter concentrations. This inference is valid for all Upper Jurassic-Lower Cretaceous organic carbon-rich sediments that are synchronous to the Mar'yanovo Formation and developed over a spacious area of the West Siberian basin. [ABSTRACT FROM AUTHOR]

Abstract: We have studied Jurassic sections in the Predyenisei subprovince of the West Siberian petroleum basin, which were penetrated in the Vostok-1, Vostok-3, and Vostok-4 stratigraphic wells. The Urman, Togur, Ilan, Peshkovo, Tyumen’, Naunak, and Mar’yanovka Formations are described from a detailed comprehensive core analysis and log data. The depositional environment for these sediments was predominantly continental. There is evidence for short transgressions in the Ilan (Lower Toarcian) and Peshkovo (Upper Toarcian) Formations, as well as the Upper Urman (Upper Pliensbachian) and the Upper Tyumen’ (Bajocian) Subformations. In the Upper Naunak Subformation (Oxfordian), there was a change of facies from continental to littoral continental and littoral marine. The Mar’yanovka Formation developed in normal marine shallow- or moderately deep-water environments. Although good reservoirs are common throughout the Jurassic section in the southeast of West Siberia, only small, lithologically screened deposits are predicted here. [Copyright &y& Elsevier]

Abstract: This study provides a comprehensive sedimentologic analysis of the J2 prospective horizon (Middle–Late Bathonian) in the central West Siberian Basin. Based on the extensive dataset, it was established that structural complexity of this horizon is largely caused by a variety of depositional environments. Sedimentary facies of this horizon pass upward from widespread continental at the base, through deltaic or coastal-continental, to marginal-marine at the top. Change in the paleohypsometry of the study area reflects the distribution of depositional environments, in terms of the proportions of continental, transitional, and marine deposits. The study also shows that facies variability and change in depositional settings can have a significant control on reservoir quality, as well as its vertical and lateral distribution. Using a combination of detailed GDE reconstructions, structure contour mapping on the top and base of the J2 horizon, analyses of well test data, probability of reservoir presence, distribution of average porosity and permeability within different subenvironments, a composite map showing variations in the reservoir effectiveness in the J2 horizon was generated. [Copyright &y& Elsevier]

Abstract: The petrographic, petrochemical, and mineralogical compositions of the Kuvalorog Ni-bearing cortlandite-norite intrusion and endocontact leucodiorites hosting pyrope-almandine garnet are considered. Lamprophyre dikes with scarce pyrope-almandine garnet, first discovered in the massif, and plagioclase-pyroxene symplectites in garnet porphyroblast areas are studied. Judging from the petrography of rocks and the composition of inclusions rich in incompatible elements in the garnet, the mineral was produced by the reaction of orthopyroxene with the anorthite component of plagioclase at the subsolidus stage of formation of endocontact diorites. This reaction was probably favored by the fluid phase abundant in the parental magma of the Kuvalorog intrusion and, especially, in the zones near its contact with relics of terrigenous rocks, where it was produced as a result of the rock dehydration under the thermal effect of the intrusion. [Copyright &y& Elsevier]

The potential of the Polar Silk Road (PSR) to accelerate the shipping trade is gaining importance because sea ice is currently melting in the Arctic region. Economic growth generates negative environmental and social impacts (TBL aspects); however, only a few studies have discussed the opportunities and threats in balancing TBL aspects. To fill this knowledge gap, this study addresses the opportunities and threats presented by the PSR. Nevertheless, information on the PSR is spread across diverse databases and is incomplete. This study utilizes a data-driven approach to handle these diverse databases and incomplete information and thereby to provide visual two- and three-dimensional impact analyses of opportunities and threats. This study contributes to the literature by (1) bridging TBL aspects of the PSR, (2) using a proposed hybrid method to address the aspect-balancing problem, and (3) providing insights on the opportunities and threats of the PSR. The results reveal negative effects of the PSR in terms of the balance between the economic and environmental aspects and that between the economic and social aspects. This study confirms that the scale and speed of development of the PSR pose a challenge to the environmental and social standards upheld by the surrounding countries and regions. Russia and the United Kingdom are ranked first and second in upholding these standards, while Germany, the Republic of Korea, the Netherlands and Norway strive to achieve a balance between the economic, social and environmental aspects. • This study examines the Polar Silk Road (PSR) feasibility to accelerate the shipping trade. • Few study takes Triple-Bottom-Line (TBL) involvement in balancing PSR sustainability. • This study utilizes a data-driven with a multi criteria decision-making method. • There is a negative on the economic-environmental and social-economic aspects. • Russia and United Kingdom are ranked first and second in overall TBL performance. [ABSTRACT FROM AUTHOR]

Background: The COVID-19 pandemic has potentially had a negative impact on the mental health and well-being of individuals and families. Anxiety levels and risk factors within particular populations are poorly described.Objective: This study aims to evaluate confidence, understanding, trust, concerns, and levels of anxiety during the COVID-19 pandemic in the general population and assess risk factors for increased anxiety.Methods: We launched a cross-sectional online survey of a large Russian population between April 6 and 15, 2020, using multiple social media platforms. A set of questions targeted confidence, understanding, trust, and concerns in respondents. The State-Trait Anxiety Inventory was used to measure anxiety. Multiple linear regressions were used to model predictors of COVID-19-related anxiety.Results: The survey was completed by 23,756 out of 53,966 (44.0% response rate) unique visitors; of which, 21,364 were residing in 62 areas of Russia. State Anxiety Scale (S-Anxiety) scores were higher than Trait Anxiety Scale scores across all regions of Russia (median S-Anxiety score 52, IQR 44-60), exceeding published norms. Time spent following news on COVID-19 was strongly associated with an increased S-Anxiety adjusted for baseline anxiety level. One to two hours spent reading COVID-19 news was associated with a 5.46 (95% CI 5.03-5.90) point difference, 2-3 hours with a 7.06 (95% CI 6.37-7.74) point difference, and more than three hours with an 8.65 (95% CI 7.82-9.47) point difference, all compared to less than 30 minutes per day. Job loss during the pandemic was another important factor associated with higher S-Anxiety scores (3.95, 95% CI 3.31-4.58). Despite survey respondents reporting high confidence in information regarding COVID-19 as well as an understanding of health care guidance, they reported low overall trust in state and local authorities, and perception of country readiness.Conclusions: Among Russian respondents from multiple social media platforms, there was evidence of higher levels of state anxiety associated with recent job loss and increased news consumption, as well as lower than expected trust in government agencies. These findings can help inform the development of key public health messages to help reduce anxiety and raise perceived trust in governmental response to this current national emergency. Using a similar methodology, comparative surveys are ongoing in other national populations. [ABSTRACT FROM AUTHOR]