bluuebunny/crossref_metadata_2025_split huggingface dataset:
Petrology and Geochemistry of Carbonate Metasediments from Pindwara-Aburoad Belt in the Southern Part of South Delhi Terrane: Implications for Protolith, Provenance and Tectonic Setting
Authors: Dutta Riya , Purohit Ritesh , Bhu Harsh , Sharma Kamal Kant 
Published: May 2023

Abstract
The carbonate metasediments of Pindwara-AbuRoad Belt (PARB) in the Sirohi district belongs to the Kumbhalgarh Group of the South Delhi Terrane (SDT). The litho-assemblages associated are quartzite, carbonate, mica schist, phyllite, metavolcanics, and granitoids. The present study is made on impure marble and calc-silicates of the study area. The carbonates show mineralogical variations with indiscernible field boundaries. The carbonates composed of calcite, diopside, hornblende, tremolite, actinolite, biotite, muscovite, epidote, quartz, plagioclase with minor proportion of apatite, sphene, garnet, sericite, kyanite, zircon, opaque, and broadly may be termed as calc-silicates. The mineral chemistry, major, trace elements, and REE geochemistry of the carbonates reveal the nature of protolith, provenance, depositional environment, spatial and temporal constraints on metamorphism, and on going tectonic process. The study suggests that the PARB carbonate metasediments were derived from a varied proportion of terrigenous and quartzo-feldspathic felsic provenance and deposited in less saline shallow marine environment in an intracontinental rift setting. These exhibit amphibolite to green-schist facies metamorphism, accompanied by polyphase deformation. The metasediments of the region indicate the Meso-Neoproterozoic transition during the Delhi Orogeny in SDT.
Black Plastic Waste Classification by Laser-Induced Fluorescence Technique Combined with Machine Learning Approaches
Authors: Bonifazi G. , Capobianco G. , Cucuzza P. , Serranti S. , Spizzichino V. 
Published: May 2023

AbstractSensor-based sorting devices commonly used in plastic recycling plants, mainly working in the near infrared range (NIR), are unable to identify black plastics, due to their low spectral reflectance. The aim of this work was to investigate the potentialities offered by laser-induced fluorescence (LIF) technique (spectral range 270–750 nm) for the identification of black polymers inside a plastic waste stream, thus allowing the possibility to build efficient sorting strategies to be applied in recycling plants. Representative samples of black plastics collected among the most utilized in household packaging were selected, constituted by four different types of polymers, i.e., expanded polystyrene (EPS), polystyrene (PS), polypropylene (PP) and high-density polyethylene (HDPE). The acquired LIF spectra were processed using multivariate approaches in order to optimize polymer classification. The developed hierarchical—partial least square-discriminant analysis (Hi-PLS-DA) classification model, showed excellent performances, confirmed by the values of sensitivity and specificity values in prediction, being equal to 1. The correctness of classification obtained by LIF was confirmed by the application of Fourier Transform Infrared spectroscopy (FTIR) on the same samples. The achieved results demonstrated the potential of LIF technique combined with a machine learning approach as sorting/quality control tool of black polymers in recycling plants.
Graphical Abstract
A parametric design approach for multi-lobed hybrid airships
Authors: Manikandan M. , Shah R. R. , Priyan P. , Singh B. , Pant R. S. 
Published: May 2023

AbstractIn recent years, there has been an increasing interest in the research and development of hybrid airships for various applications. Airship design involves multiple design parameters from various disciplines that interact mutually. Existing design methodologies, however, are often limited to fixed shapes and geometry. This paper provides a comprehensive parametric design approach for the sizing of multi-lobed hybrid air vehicles for low- and high-altitude applications. The proposed design techniques are robust so that the designer has the freedom to change the number of lobes, the relative location of lobes, the envelope profile, and the optimiser for the design optimisation process. The outcomes of the proposed methodology are envelope volume, wetted surface area, length and span of the envelope, sizing and layout of the solar array, and sizing and layout of the fins. The modeling techniques highlighted in this paper are very efficient for the design and optimisation of multi-lobed airships in the conceptual design phase with a large design exploration space. The robustness of the shape generation algorithms is tested on some of the standard envelope profiles of airships. The effect of the shape and geometry of the multi-lobed envelope on added mass is demonstrated through the added mass estimation using Boundary Element Method.
G.C. Harcourt: An economist with accounting sense
Authors: Boianovsky Mauro , Repapis Constantinos 
Published: May 2023

AbstractGeoffrey Colin Harcourt’s work on the interface between accountancy and economics is a part of his legacy that is less well-known than his work on the capital controversies. This paper argues that the analytical findings of this research effort are an important and integral part of Harcourt’s overall research programme. In this paper, we review Harcourt’s work on the relation between economics and accounting from the time of his undergraduate thesis to 1969, the date of the publication with Robert Parker of the edited volumeReadings in the Concept and Measurement of Income. This paper intends to offer insights on (A) the evolution of Harcourt’s thought during this period and a survey of the significant contributions he made to research in this field during this time and (B) the legacy of his approach and findings. We argue that his ideas in this domain offer important insights in doing post-Keynesian economics in the Harcourt mould. We find that Harcourt’s insights on the issues relating to the accounting rate of profit as used by economists remain relevant to today, as well as his implicit suggestions on how to deal with the complexities of the problems that ensue for the theorist, practical economist, businessman, and policy advisor. Harcourt’s work suggests that we should not aim to replace one monolithic way of seeing things with another, indicating that the useful definition of key concepts and tools is determined by the problem and hence by the policy question one wants to answer.
Reconstructing Holocene fire records using dune footslope deposits at the Cooloola Sand Mass, Australia
Authors: Patton Nicholas R. , Shulmeister James , Hua Quan , Almond Peter , Rittenour Tammy M. , Hanson Johanna M. , Grealy Aloysius , Gilroy Jack , Ellerton Daniel 
Published: May 2023

AbstractIn this study, we assess charcoal records from eolian deposits within the Cooloola Sand Mass, a subtropical coastal dune system in eastern Australia, to determine whether they can be used as a proxy for Holocene fire history. We excavate four profiles in depositional wedges at the base of dune slipfaces (footslope deposits) and calculate charcoal concentrations for three size classes (180–250 μm, 250–355 μm, and 355 μm–2 mm) at predetermined depth intervals. Age–depth models are constructed for each profile using radiocarbon measurements (n = 46) and basal optically stimulated luminescence ages (n = 4). All records appear intact with little evidence of postdepositional mixing as demonstrated by minimal age reversals and consistent trends in charcoal concentration and accumulation rates (CHAR) among size classes. Combining all four records, we generate a ca. 7 cal ka BP terrestrial fire history that depicts distinct peaks representing periods of increased local fire activity at <0.3, 1.1–0.4, 2.2–1.6, 3.4–2.6, and 6.7–5.3 cal ka BP. Our findings parallel regional records and highlight the utility of dune footslopes as ecological and sedimentary archives. As dune fields are much more common than wetlands and lakes in semiarid and arid areas, these deposits have the potential to increase the spatial resolution of fire records globally.
Distribution and abundance of threatened and heavily traded birds in the mountains of western Java
Authors: Marsden Stuart J. , Junaid Achmad Ridha , Kaprawi Fajar , Muladi Faris , Aprianto Ganjar Cahyo , van Balen S. (Bas) , Saryanthi Ria , Collar Nigel J. , Devenish Christian 
Published: May 2023

Summary
There is serious concern for the future of a wide range of birds in Java and elsewhere in Indonesia due to both loss of habitat and trapping for the cagebird trade (the so-called “Asian Songbird Crisis”). Despite this concern, few data on presence and abundance of key species exist. We provide such data on 184 bird species from over two years of biodiversity surveys from 37 sites on 12 mountains in West and Central Java. Many of these species are heavily traded, endemic, and globally threatened. Several of the threatened endemics, notably Javan Trogon and Javan Cochoa, were often recorded, in terms of both geographical spread and numerical abundance. Rufous-fronted Laughingthrush, Spotted Crocias, and Orange-spotted Bulbul, believed to be threatened by trapping for the songbird trade, appear to remain fairly widespread. By contrast, Brown-cheeked Bulbul, Chestnut-backed (Javan) Scimitar-babbler, Javan Oriole, and especially Javan Blue-flycatcher, recorded on just a single occasion, and Javan Green Magpie, which we failed to record with certainty, now appear to be extremely rare. Our encounter rates, while not pinned to specific mountains for security reasons, represent an important baseline against which future changes in abundance can be gauged.
Dr. Google’s Advice on First Aid: Evaluation of the Search Engine’s Question-Answering System Responses to Queries Seeking Help in Health Emergencies
Authors: Birkun Alexei A. , Gautam Adhish 
Published: May 2023

AbstractIntroduction:The ever-growing penetration of internet and mobile technologies into society suggests that people will increasingly use web searches to seek health-related information, including advice on first aid in medical emergencies. When a bystander is incompetent in first aid and has no immediate support from Emergency Medical Services (EMS), as it happens in low-resource settings or in disasters, instructions found online could be the sole driver for administering first aid before arrival of professional help.Study Objective:The aim of this study was to evaluate quality of advice on first aid generated by a web search engine’s question-answering system (QAS) in response to search queries concerning provision of help in common health emergencies.Methods:In December 2022-January 2023, an English-language search was carried out in Google with ten queries based on the keyword combinations (what to do OR how to help) AND (bleeding OR chest pain OR choking OR not breathing OR seizure). The search engine’s QAS responses (up to 11 per search query) were evaluated for compliance with the International Federation of Red Cross First Aid Guidelines 2020 using the pre-developed checklists.Results:Out of 98 QAS items generated by Google, 67.3% (n = 66) were excluded, mainly because the QAS answers did not address original queries. Eligible unique QAS responses (n = 27) showed poor coverage of the guideline-compliant instructions on first aid. Mean percentage of QAS responses providing a first aid instruction with complete adherence to the guidelines varied from 0.0 for choking to 19.5 for seizure. Only three (11.1%) QAS responses contained an explicit instruction to access EMS, while 66.7% (n = 18) included directions either contradictory to the guidelines and potentially harmful (eg, use of home remedies in chest pain) or inapplicable for an untrained person (eg, use of tourniquet in bleeding).Conclusion:Although the search engine’s QAS responds to user’s inquiries concerning assistance in health emergencies, the QAS-generated answers, as a rule, omit potentially life-saving evidence-based instructions on first aid and oftentimes give advices noncompliant with current guidelines or inadequate for untrained people, and thus create risks for causing harm to a victim.
Adherence to the Mediterranean Diet in medical students
Authors: González-Sosa Sonia , Ruiz-Hernández Jose Juan , Puente-Fernández Alicia , Robaina-Bordón José María , Conde-Martel Alicia 
Published: May 2023

AbstractObjective:The protective effect of the Mediterranean Diet (MeDi) is undisputed. However, adherence to MeDi has decreased in recent years, particularly in young people. The aim of this study was to evaluate adherence to MeDi in medical students and to assess the influence of knowledge acquisition as well as other factors on dietary compliance.Design:A cross-sectional study was conducted on medical students. The data were obtained through anonymous surveys that collected demographic characteristics, medical history, alcohol and tobacco consumption, physical activity and adherence to MeDi – using 14-point Mediterranean Diet Adherence Score (MEDAS) –. Adherence to MeDi and related factors were evaluated by univariate and multivariable analysis.Participants:Medical students from the first to the sixth year of the 2018–2019 academic year.Setting:The study was conducted at the university of Las Palmas de Gran Canaria.Results:Of 589 respondents (73 % women) mean aged 22 years (range 18–39), 58·9 % showed good adherence to MeDi. Adherence was significantly associated with age (P = 0·017) but not with sex or the presence of comorbidities. Independently, adherence to MeDi was higher in last academic courses (OR = 2·1; 95 % CI = 1·3, 3·2; P = 0·001), in those who consumed alcohol more frequently (OR = 1·5; 95 % CI = 1·0, 2·1; P = 0·039) and in those who practiced more exercise (OR = 1·5; 95 % CI = 1·2, 1·9; P < 0·001).Conclusions:Half of all medical students did not have a good adherence to MeDi. Adherence was higher at older age in higher academic years and related to greater physical activity. It would be convenient to quantify dietary knowledge as well as implement nutritional educational programmes, favouring a healthy lifestyle.
International Judicial Intervention in the Case of Libya: From Justice Enforcer to Peace Maker RightConstituency and Institutional Independence: Virtues of a Fight against Realpolitik
Authors: TEIMOURI Heidarali 
Published: May 2023

AbstractThis article investigates the case of Libya; the way the International Criminal Court responded to it; what went wrong; and what the Court could learn from the case for its future. It attempts to show that the regime change strategy followed in Libya jeopardized the international criminal justice mandate of the Court, created a failed state conundrum, and rendered the Court's intervention counterproductive. Also, in cases like Libya, where judicial intervention sits alongside military intervention, it is difficult for the Court to claim jurisdiction independent of untamed realpolitik while finding the right constituency, which is an urgent issue that remains unsolved. This research concludes that only a dispute settlement approach oriented towards a peacemaking mandate, and its incorporation into the jurisdiction of the Rome Statute, can protect the Court's independence and international criminal justice promises regarding the different limitations the Court faces.
Observation and Simulation of Lightning Strikes in an Offshore Wind Turbine Cluster
Authors: Zou Mengjin , Zhang Yang , Tan Yongbo , Chen Lyuwen , Yao Wen 
Published: May 2023

AbstractBased on the detection data of the Guangdong‐Hong Kong‐Macau lightning location system from 2013 to 2022, this paper analyzes the characteristics of lightning strikes in an offshore wind turbine cluster (WTC) in Guangdong. This is the first time to quantify the lightning strikes difference between the inner and outer wind turbines (WTs) and discuss the impact mechanisms of WTCs on the characteristics of lightning strikes by the simulation results of electric potential distribution. The observation results show that the stroke density, cloud‐to‐ground (CG) flash density, and average peak current within the affected area increase by 10.1%, 11%, and 5.1%, respectively, but the lightning multiplicity changes little. The inner and outer WTs show different characteristics of lightning strikes. The stroke density, lightning multiplicity, and average peak current in the area of outer WTs increase by 21%, 4.1%, and 6.8%, respectively, while in the area of inner WTs decrease by 20.2%, 19%, and 3.9%, respectively. The CG flash density in the area of outer WTs increases by 16.1% but changes little in the area of inner WTs. The simulation results show there is a significant difference in the electric potential distribution between the inner and outer WTs: the distortion effect of the outer WTs on spatial electric potential is stronger than that of the inner WTs at a greater height, but the difference is not obvious at a lower height. Such a difference in electric potential distribution leads to different characteristics of lightning strikes between the inner and outer WTs.
Estimating the Global Influence of Cover Crops on Ecosystem Service Indicators in Croplands With the LPJ‐GUESS Model
Authors: Ma Jianyong , Anthoni Peter , Olin Stefan , Rabin Sam S. , Bayer Anita D. , Xia Longlong , Arneth Almut 
Published: May 2023

AbstractCover crops (CCs) can improve soil nutrient retention and crop production while providing climate change mitigation co‐benefits. However, quantifying these ecosystem services across global agricultural lands remains inadequate. Here, we assess how the use of herbaceous CCs with and without biological nitrogen (N) fixation affects agricultural soil carbon stocks, N leaching, and crop yields, using the dynamic global vegetation model LPJ‐GUESS. The model performance is evaluated with observations from worldwide field trials and modeled output further compared against previously published large‐scale estimates. LPJ‐GUESS broadly captures the enhanced soil carbon, reduced N leaching, and yield changes that are observed in the field. Globally, we found that combining N‐fixing CCs with no‐tillage technique could potentially increase soil carbon levels by 7% (+0.32 Pg C yr−1 in global croplands) while reducing N leaching loss by 41% (−7.3 Tg N yr−1) compared with fallow controls after 36 years of simulation since 2015. This integrated practice is accompanied by a 2% of increase in total crop production (+37 million tonnes yr−1 including wheat, maize, rice, and soybean) in the last decade of the simulation. The identified effects of CCs on crop productivity vary widely among main crop types and N fertilizer applications, with small yield changes found in soybean systems and highly fertilized agricultural soils. Our results demonstrate the possibility of conservation agriculture when targeting long‐term environmental sustainability without compromising crop production in global croplands.
MESSENGER Observations of Standing Whistler Waves Upstream of Mercury's Bow Shock
Authors: Wang Yang , Zhong Jun , Slavin James , Zhang Hui , Lee Lou‐Chuang , Shan Lican , Rong Zhaojin , Wei Yong , Pan Yongxin 
Published: May 2023

AbstractThis paper reports on the standing whistler waves upstream of Mercury's quasi‐perpendicular bow shock. Using MESSENGER's magnetometer data, 36 wave events were identified during interplanetary coronal mass ejections (ICMEs). These elliptic or circular polarized waves were characterized by: (a) a constant phase with respect to the shock, (b) propagation along the normal direction to the shock surface, and (c) rapid damping over a few wave periods. We inferred the speed of Mercury's bow shock as ∼26 km/s and a shock width of 1.87 ion inertial length. These events were observed in 20% of the MESSENGER orbits during ICMEs. We conclude that standing whistler wave generations at Mercury are generic to ICME impacts and the low Alfvén Mach number (MA) collisionless shock, and are not affected by the absolute dimensions of the bow shock. Our results further support the theory that these waves are generated by the current in the shock.
Iron Variability Reveals the Interface Effects of Aerosol‐Pollutant Interactions on the Glacier Surface of Tibetan Plateau
Authors: Dong Zhiwen , Shao Yaping , Jiao Xiaoyu , Parteli Eric , Wei Ting , Li Weijun , Qin Xiang 
Published: May 2023

AbstractIron (Fe) as a limiting nutrient has profound impacts on ecosystems and the global biogeochemical cycle. Field observations were made at the atmosphere—snowpack interface in various glaciers of the Tibetan Plateau. The formand chemical properties of the Fe detected were investigated in laboratory using TEM‐EDX measurements, to obtain insights in the content and sources of Fe in aerosol pollutants in glaciers, as well as micro‐structure changes and their environmental effects, as well as interface transformation dynamics. We find that Fe occurs in forms of aggregated and single particulates with diameter d < 5 μm. The Fe particulates collected from different locations show clear spatial heterogeneity, with fly ash and soot constituting the major components of anthropogenic Fe. The concentration of Fe aggregates with pollutants (e.g., sulfate and nitrate) is dominant in regions close to the areas of human activity. Moreover, in the remote areas of the interior plateau, an increased concentration of mineral Fe particles is found in the aggregates. These observations are crucial to elucidate the evolution processes of pollutant‐Fe mixing, from generation or emission through anthropogenic activities to accumulation in remote areas and modification of Fe occurrence form during transportation. Our results also show that, during interface deposition, soluble Fe particle concentration increased by 13.8% on average, as Fe solutes with sulfate‐coating enhances of the dissolution of Fe in fly ash‐soot and minerals—a process that produces large quantities of ultrafine Fe particle under reductive dissolution in snowpack. Overall, these changes significantly contribute to enhancing the bioavailable iron content in the study areas affecting thereby the glacier ecosystem.
Synthesizing Sea Surface Temperature and Satellite Altimetry Observations Using Deep Learning Improves the Accuracy and Resolution of Gridded Sea Surface Height Anomalies
Authors: Martin Scott A. , Manucharyan Georgy E. , Klein Patrice 
Published: May 2023

AbstractGridded sea surface height (SSH) maps estimated from satellite altimetry are widely used for estimating surface ocean geostrophic currents. Satellite altimeters observe SSH along one‐dimensional tracks widely spaced in space and time, making accurately reconstructing the two‐dimensional (2D) SSH field challenging. Traditionally, SSH is mapped using optimal interpolation (OI). However, OI artificially smooths the SSH field leading to high mapping errors in regions with rapidly‐evolving mesoscale features such as western boundary currents. Motivated by the dynamical relation between SSH and sea surface temperature (SST) and the notion that even the chaotic evolution of mesoscale ocean turbulence may contain repeating patterns, we outline a deep learning (DL) approach where a neural network is trained to reconstruct 2D SSH by synthesizing altimetry and SST observations. In the Gulf Stream Extension region, dominated by mesoscale variability, our DL method substantially improves the SSH reconstruction compared to existing methods. Our SSH map has 17% lower root‐mean‐square error and resolves spatial scales 30% smaller than OI compared against independent altimeter observations. Surface geostrophic currents calculated from our map are closer to surface drifter observations and appear qualitatively more realistic, with stronger currents, a clearer separation between the Gulf Stream and neighboring eddies, and the appearance of smaller coherent eddies missed by other methods. Our map yields significant re‐estimations of important dynamical quantities such as eddy kinetic energy, vorticity, and strain rate. Applying our DL method to produce a global SSH product may provide a more accurate and higher resolution product for studying mesoscale ocean turbulence.