bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing the sustainability of post-Green Revolution cereals in India
Authors: Davis Kyle Frankel , Chhatre Ashwini , Rao Narasimha D. , Singh Deepti , Ghosh-Jerath Suparna , Mridul Anvi , Poblete-Cazenave Miguel , Pradhan Nabin , DeFries Ruth 
Published: November 2019

Significance
Substantial growth in food production has occurred from a narrowing diversity of crops over the last 50 y. Agricultural policies have largely focused on the single objective of maximizing production with less attention given to nutrition, climate, and environment. Decisions about sustainable food systems require quantifying and assessing multiple dimensions together. In India, diversifying crop production to include more coarse cereals, such as millets and sorghum, can make food supply more nutritious, reduce resource demand and greenhouse gas emissions, and enhance climate resilience without reducing calorie production or requiring more land. Similar multidimensional approaches to food production challenges in other parts of the world can identify win–win scenarios where food systems meet multiple nutritional, environmental, and climate resilience goals.
Detection of individual sub-pixel features in edge-illumination x-ray phase contrast imaging by means of the dark-field channel
Authors: Matsunaga Norihito , Yano Kazuhiro , Endrizzi Marco , Olivo Alessandro 
Published: November 2019

Abstract
We report on a direct comparison in the detectability of individual sub-pixel-size features between the three complementary contrast channels provided by edge-illumination x-ray phase contrast imaging at constant exposure time and spatial sampling pitch. The dark-field (or ultra-small-angle x-ray scattering) image is known to provide information on sample micro-structure at length scales that are smaller than the system’s spatial resolution, averaged over its length. By using a custom-built groove sample, we show how this can also be exploited to detect individual, isolated features. While these are highlighted in the dark-field image, they remain invisible to the phase and attenuation contrast channels. Finally, we show images of a memory SD card as an indication towards potential applications.
Superconducting TaH5 at high pressure
Authors: Li Hefei , Li Xue , Wang Hui , Liu Guangtao , Li Yinwei , Liu Hanyu 
Published: November 2019

Abstract
Recently, the significant development, in the field of high-temperature superconductivity among the compressed elements hydrides (such as LaH10), opens up a door in pursuing room-temperature superconductors. Therefore, the investigations of excellent superconductivity in hydrogen-rich materials have become a hot topic of considerable interest. Herein, we explore the stabilities of compressed tantalum polyhydrides TaH
n
(n = 1–6) and the superconductivity by using a particle swarm optimization structure prediction methodology in combination with the first-principles electronic structure framework. As a result of structure searches, we identified a stable TaH5 compound under high pressure, which consists edge shared TaH12 polyhedra. Remarkably, within Allen–Dynes modified McMillan equation, our predicted TaH5 is a superconductor with superconducting critical temperature (T
c) of 18–23 K at 100 GPa.
Ultrafast demagnetization of Pt magnetic moment in L10-FePt probed by magnetic circular dichroism at a hard x-ray free electron laser
Authors: Yamamoto Kohei , Kubota Yuya , Suzuki Motohiro , Hirata Yasuyuki , Carva Karel , Berritta Marco , Takubo Kou , Uemura Yohei , Fukaya Ryo , Tanaka Kenta , Nishimura Wataru , Ohkochi Takuo , Katayama Tetsuo , Togashi Tadashi , Tamasaku Kenji , Yabashi Makina , Tanaka Yoshihito , Seki Takeshi , Takanashi Koki , Oppeneer Peter M , Wadati Hiroki 
Published: November 2019

Abstract
Unraveling the origin of ultrafast demagnetization in multisublattice ferromagnetic materials requires femtosecond x-ray techniques to trace the magnetic moment dynamics on individual elements, but this could not yet be achieved in the hard x-ray regime. We demonstrate here the first ultrafast demagnetization dynamics in the ferromagnetic heavy 5d-transition metal Pt using circularly-polarized hard x-rays at an x-ray free electron laser (XFEL). The decay time of laser-induced demagnetization of L10-FePt is determined to be

τ

Pt

=
0.61
±
0.04

ps

using time-resolved x-ray magnetic circular dichroism at the Pt L3 edge, whereas magneto-optical Kerr measurements indicate the decay time for the total magnetization as

τ

total

<
0.1

ps

. A transient magnetic state with a photo-modulated ratio of the 3d and 5d magnetic moments is demonstrated for pump–probe delays larger than 1 ps. We explain this distinct photo-modulated transient magnetic state by the induced-moment behavior of the Pt atom and the x-ray probing depth. Our findings pave the way for the future use of XFELs to disentangle atomic spin dynamics contributions.
Understanding tidal marsh trajectories: evaluation of multiple indicators of marsh persistence
Authors: Wasson Kerstin , Ganju Neil K , Defne Zafer , Endris Charlie , Elsey-Quirk Tracy , Thorne Karen M , Freeman Chase M , Guntenspergen Glenn , Nowacki Daniel J , Raposa Kenneth B 
Published: November 2019

Abstract
Robust assessments of ecosystem stability are critical for informing conservation and management decisions. Tidal marsh ecosystems provide vital services, yet are globally threatened by anthropogenic alterations to physical and biological processes. A variety of monitoring and modeling approaches have been undertaken to determine which tidal marshes are likely to persist into the future. Here, we conduct the most robust comparison of marsh metrics to date, building on two foundational studies that had previously and independently developed metrics for marsh condition. We characterized pairs of marshes with contrasting trajectories of marsh cover across six regions of the United States, using a combination of remote-sensing and field-based metrics. We also quantified decadal trends in marsh conversion to mudflat/open water at these twelve marshes. Our results suggest that metrics quantifying the distribution of vegetation across an elevational gradient represent the best indicators of marsh trajectories. The unvegetated to vegetated ratio and flood-ebb sediment differential also served as valuable indicators. No single metric universally predicted marsh trajectories, and therefore a more robust approach includes a suite of spatially-integrated, landscape-scale metrics that are mostly obtainable from remote sensing. Data from surface elevation tables and marker horizons revealed that degrading marshes can have higher rates of vertical accretion and elevation gain than more intact counterparts, likely due to longer inundation times potentially combined with internal recycling of material. A high rate of elevation gain relative to local sea-level rise has been considered critical to marsh persistence, but our results suggest that it also may serve as a signature of degradation in marshes that have already begun to deteriorate. This investigation, with rigorous comparison and integration of metrics initially developed independently, tested at a broad geographic scale, provides a model for collaborative science to develop management tools for improving conservation outcomes.
Assessment of man-made impact of mining on the environment of the Baikal-Mongolian region
Authors: Abalakov A D , Bazarova N B 
Published: November 2019

Abstract
In the Baikal-Mongolian region the assessment of the environmental impact of mining is carried out for mining enterprises that search, explore, and extract various types of mineral raw materials, as well as carry out their primary processing, waste disposal and recultivation of wastelands. We proposed a research model, summarizing the investigation content and stages. Leading importance is attached to the cartographic method based on remote materials and geo-information technologies, which increases the reliability, visibility and efficiency of the results obtained. We developed a system of indicators, taking into account the peculiarities of mining industry and environment. The negative impact of mining production on specially protected natural territories is assessed, the role of the latter as nature reserves and barriers to the technogenic expansion is determined. The enterprises that have the strongest environmental impact were comprehensively evaluated, while integrating various aspects of interaction of natural complexes and mining. The evaluation is carried out in relation to landscapes and their components that are most responsible for the environmental state. The maps obtained make it possible to determine the acuteness of ecological situations and plan and implement environmental protection measures in a timely manner. Prospects for further research were identified, a special place in which is given to methods of geoinformation modeling and mapping.
Biochemical monitoring of soils in the area of development of subsurface energy resources
Authors: Belozertseva I A , Davydova N D , Vlasova N V , Sorokovoi A A , Granina N I , Naprasnikova E V 
Published: November 2019

Abstract
It was found that the sites of the drilling rigs are the most transformed and polluted areas of soils on the territory of the gas-condensate field. It was established that the soils of some of the sites of development of the gas-condensate field showed increased contents of oil products, lead, zinc, nickel and chromium exceeding background values and health standards. On the territory of the Nyuchakan base and of some boreholes of the gas-condensate field there occurred a change in the soil water composition, and chloride and sulfate salinization of soils was observed. Characteristic areas of technogenic soils formed 15 and 25 year after the accidents: ejection of highly mineralized oil-field pressure brine (natural brine) to the surface in the area of the valley of the Orlingskaya Nyucha (the Kovykta gas-condensate field), and oil spill in the vicinity of the village of Tyret (the Krasnoyarsk-Irkutsk pipeline). They show high contents of oil products, heavy metals and organic matter as well as the shift of the reaction of the medium toward the neutral and alkaline side. The study revealed an increase in the sum of exchange bases, salinization, a heavier granulometric composition, and enhancement in gleying, and a decline in biological activity of soils.
Assessment methods of recreational potential of water objects
Authors: Dirin D A , Madry C 
Published: November 2019

Abstract
The article proposes a methodology for assessing the recreational potential of water objects and their coasts. Such an assessment makes it possible to identify territories and water areas in which maximum concentrations of natural properties useful for recreational activities are localized. This is important when making investment decisions. The evaluation method proposed by the authors is based on a point approach, which allows combining difficultly comparable properties of aquatic (and near-aquatic) geosystems. Evaluation criteria for the methodology are selected using the expert method. For this purpose, a group of international experts in the field of recreational geography was involved in the study. The ranking of criteria by a degree of priority was carried out using the hierarchy analysis method (and using the Expert Choice software). As a result, 27 of the most significant criteria were selected, allowing evaluation of the water body (with its coastal zone) in terms of its suitability for beach-bathing, balneological, hunting and fishing recreation, eco-tourism, as well as physical and landscape-aesthetic properties. The received score on all indicators allows carrying the estimated water object to this or that rank of usefulness for the organization of recreational activity with the help to the corresponding scale of ranging.
An Approach to Economic Growth and Environment Effects in Northeast Asia
Authors: Li F 
Published: November 2019

Abstract
Global achievement of urbanization and farming revitalization in the past few years has taken significant environmental impacts linked to the relative industry sectors, including Northeast Asia and China-Russia Economic Corridor. The environmental degradation-energy shortage-farmland reduction-food security nexus need be urgently explored to improve the sustainability and environmental management, as significance of rural revitalization policies. Consequently, assessing agricultural emissions, livestock waste and the related biogas development is the crux in the nexus treatment. This paper focuses on a Northeast Asia context and analyse the environment-economy relationship applying panel cointegration and panel estimation methods, considering the features of agricultural emissions and animal wastes in Northeast Asia national economies from 1992 to 2016, and explore an open and international farming perspective for rural context. It is indicated a long-run co-integrated curve like Environmental Kuznets Curve between the agricultural environment and economy index. It could be one of the most significant cooperation issues around the region to improve this agriculture related ecology level and the corresponding trade and fund.
Peculiarities of the global climate tendencies in the south-east Russian plains
Authors: Morozova S V , Polyanskaya E A , Kononova N K , Molchanova N P , Solodovnikov A P 
Published: November 2019

AbstractThe paper discusses seasonal changes in the surface temperature of the Northern Hemisphere during various climatic periods - the first wave of global warming, the second wave of global warming, and stabilization. The statistical significance of the changes was estimated. The features of the activity of global climatic trends in the Southeast of the Russian Plain in an arid climate are studied. It is shown that climatic changes in the region have their own characteristics. The degree of climate continentality in different climatic periods is estimated. The change in the continentality degree was statistically significant at the transition from stabilization period to the second wave of global warming. It has been revealed that in the current climate changes in the Southeast of the Russian Plain the main factor in winter is advective, and in summer the main factor is transformational. Climatically meaningful conclusion about the role of transformation in possible further development of global warming is formulated, especially in continental types of climate.
Meteorological regime of the glacier No. 18 (the Peak Topografov massiv, East Sayan range)
Authors: Osipova O P , Osipov E Y 
Published: November 2019

AbstractFor the first time, experimental data on the meteorological regime of a continental glacier (No. 18, East Sayan range, south of East Siberia) have been obtained during the summer seasons of 2015–2017. Standard meteorological parameters, such as air temperature, humidity, atmospheric pressure, precipitation, incoming short-wave solar radiation, wind speed, and wind direction were measured by using the automatic weather station installed at the lower part of the accumulation area of the glacier (at elevation 2, 550 m). It was established that the meteorological regime of the glacier is characterized by a relatively high mean daily temperatures, humidity and cloudiness, while mean wind speed is relatively low. Liquid precipitation dominates over the solid one and condensation over evaporation. It has been found that temperature and precipitation time series on the glacier correlate well with those at the nearest weather station Orlik and NCEP/NCAR reanalysis data. The main energy sources for snow/ice melting have been estimated and the main contribution to glacier ablation has been attributed to net shortwave radiation.
Key ornithological territories in western Priokhotye
Authors: Pronkevich V V , Kryukova M V , Makhinov A N 
Published: November 2019

Abstract
The results of studying the current state of the habitats of waterfowls and semiaquatic birds in the western part of the coast of the Sea of Okhotsk are reviewed. These habitats are of crucial importance for the reproduction of the birds, as well as for their massive migratory concentrations on the East Asian-Australian migration route in the summer-autumn period. A description of the natural conditions of these territories is provided and the most valuable biotopes are identified, including drying zones rich in marine invertebrates, waterlogged coastal grass fields and moss bogs with karst lakes. Especially significant clusters of birds are formed in the large sea bays – Shchastya, Nikolaya, Ulbanskii, Konstantin, Tugurskii Bays, Udskaya guba, on the Mukhtel Lake, and in the Amur liman. The state of these territories is currently considered as satisfactory, but nonetheless there are certain threats for the ornithologic fauna and bird population. We propose measures for the conservation of birds at the “Okhotsk section” of the East Asian-Australian migration route. We also suggest to organize wetlands of regional significance “Nikolaya, Ulbanskii and Konstantin Bays” in Tuguro-Chumikanskii district and the natural park “Shchastya Bay” in Nikolaevskii district of Khabarovsk Krai.
The role of landscape planning for the creation of UNESCO Baikal Geopark
Authors: Suturin A N 
Published: November 2019

Abstract
In 1997, Lake Baikal was included in the List of World Heritage Sites. This resulted in the complication of management activities in the Central Ecological Zone. The Law on Lake Baikal protection, by-laws, statements and orders prescribe numerous limitations and do not promote the sustainable development of the Baikal Natural Territory. The idea of UNESCO geoparks is oriented essentially to the sustainable development of territories, comprising unique sites. The main task of land use planning in the central ecological zone of Lake Baikal is to keep Lake Baikal as a natural World Heritage Site and a strategic drinking water resource, taking into account the interests of the population living there. Institute of Geography of SB RAS performed landscape planning of Olkhon District with the establishment of development sites, but these plans are still not realized. This causes conflicts between Pribaikalsky National Park and the local population. A successful development of Basic Sites of Baikal Geopark on the territory of Olkhon District is aimed to solve numerous local problems oriented to the results of landscape planning.
Analysis of the landscape structure of the Malyi Khamar-Daban range
Authors: Vladimirov I N , Frolov A A , Silaev A V , Sofronov A P , Kobylkin D V , Sorokovoi A A 
Published: November 2019

Abstract
The paper considers the landscape study of the Malyi Khamar-Daban Range (western Transbaikalia), located in the basins of the Temnik river (Lake Taglei region) and Torei river (tributary of the Dzhida river). Based on the analysis, a landscape map of a topological level was generated, which presents homogeneous sections (geomers) of natural and natural-anthropogenic geosystems − biogeocenoses. The legend to the landscape map was developed on the basis of the principles of structural and dynamic classification of geosystems, based on the provisions of the doctrine of geosystems, which determine the landscape structure of the territory as the structure of primary and variable states of geosystems. In the legend of the map, taxonomic affiliation, factor-dynamic properties, seriality, and degree of anthropogenic disturbance of geosystems are sequentially displayed. The map displays 23 varieties of biogeocenoses referring to 3 taiga and 1 steppe geom. From factorial-dynamical attributes that determine the conditions of location, geosystems are represented by 6 classes of facies. A distinction needs to be drawn between the primary, pseudo-primary and serial facies. In the study area, 4 degrees of disturbance of geosystems were identified. Conditionally undisturbed geosystems are located mainly in inaccessible territories. The presence of moderate and severe disturbed geosystems is mainly associated with forest fires, local logging, and moderate recreational load and forestry. Areas with the maximum degree of disturbance are confined to agricultural lands and residential territories.
Study on luminescent properties of Tb3+ and Sm3+ co-doped CaSiO3 phosphors for white light emitting diodes
Authors: Khan D T , Dang N T , Jabarov S H , Naghiyev T G , Rzayev R M , Nguyen T Q , Tuyen H V , Thanh N T , Son L V T 
Published: November 2019

Abstract
A series of CaSiO3:x%Tb3+, y%Sm3+ compounds was synthesized by the conventional solid state reaction. X-ray diffraction, scanning electron microscopy, and energy dispersive x-ray spectroscopy investigations were conducted to determine crystal structure. The photoluminescence (PL) excitation spectrum of Tb3+ and Sm3+ doped compounds consists of a series of peaks corresponding to electronic transitions of Tb3+ and Sm3+ions. The wavelength of 375 nm was optimal to excite the luminescence of Tb3+/Sm3+ co-doped compounds. The PL emission spectrum consists of a set of intense lines at wavelengths of 415 nm, 436 nm, 457 nm, 488 nm, 543 nm, 586 nm, and 622 nm, corresponding to Tb3+ electronic transitions of 5D3 → 7F5, 5D3 → 7F4, 5D3 → 7F3, 5D4 → 7F6, 5D4 → 7F5, 5D4 → 7F4, and 5D4 → 7F3, respectively. The PL emission spectrum of the Sm3+ doped compound has a series of three peaks located at wavelengths of 565 nm, 602 nm, and 648 nm, corresponding to the electronic transitions of Sm3+ from 4G5/2 to 6H5/2, 6H7/2, and 6H9/2, respectively. The energy level diagram was proposed. The lifetime measurements were conducted for all samples and energy transfer process was also examined by this way. The Commission Internationale de I’Eclairage chromaticity coordinates, correlated color temperature, and color rendering index of phosphors were determined and the results indicate that the obtained materials are optimal candidate for white LED applications.
Cerebro: interactive visualization of scRNA-seq data
Authors: Hillje Roman , Pelicci Pier Giuseppe , Luzi Lucilla 
Published: November 2019

Abstract

Despite the growing availability of sophisticated bioinformatic methods for the analysis of single-cell RNA-seq data, few tools exist that allow biologists without extensive bioinformatic expertise to directly visualize and interact with their own data and results. Here, we present Cerebro (cell report browser), a Shiny- and Electron-based standalone desktop application for macOS and Windows which allows investigation and inspection of pre-processed single-cell transcriptomics data without requiring bioinformatic experience of the user. Through an interactive and intuitive graphical interface, users can (i) explore similarities and heterogeneity between samples and cell clusters in two-dimensional or three-dimensional projections such as t-SNE or UMAP, (ii) display the expression level of single genes or gene sets of interest, (iii) browse tables of most expressed genes and marker genes for each sample and cluster and (iv) display trajectories calculated with Monocle 2. We provide three examples prepared from publicly available datasets to show how Cerebro can be used and which are its capabilities. Through a focus on flexibility and direct access to data and results, we think Cerebro offers a collaborative framework for bioinformaticians and experimental biologists that facilitates effective interaction to shorten the gap between analysis and interpretation of the data.

Availability and implementation
The Cerebro application, additional documentation, and example datasets are available at https://github.com/romanhaa/Cerebro. Similarly, the cerebroApp R package is available at https://github.com/romanhaa/cerebroApp. All components are released under the MIT License.

Supplementary information
Supplementary data are available at Bioinformatics online.