bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sediment geochemistry of the section Tagay-1 at Olkhon Island (Lake Baikal, Eastern Siberia): a contribution to palaeoenvironmental interpretations
Authors: Ivanova Varvara V. , Shchetnikov Alexander A. , Kiel Steffen 
Published: December 2022

AbstractThe Miocene Tagay section in the north-western part of Olkhon Island, Lake Baikal, provides a unique window into past life in northern Asia. To aid palaeoenvironmental reconstructions, we carried out whole-rock geochemical analyses of 17 sedimentary layers of this section. The aim of this geochemical approach is to examine the element variations as a response to climate change during formation of the Tagay section deposits with a focus on the hydrological regime of the catchment and in-lake processes. Our results establish that temperature and climate conditions during the formation of sediments of section Tagay-1 were fairly stable, no abrupt climatic changes occurred. The palaeoclimate was temperate, however, it had a cyclic nature: wet and semiarid epochs of different intensity and duration alternated. The basal part of the sediment sequence is dominated by terrigeneous material, mainly by surface runoff, so the sedimentation was fed by erosion products of the weathering crust. During sedimentation of this lower part (layers 17–9), the palaeo-lake level and salinity stayed practically unchanged. The drawdown of the palaeo-lake and increasing salinity started in the higher middle part (layer 8), and reached the minimum water level and maximum salinity in layers 7–6. Sediments of the layers 8–6 accumulated in an arid climate. After deposition of layer 5, the water level began to rise, and during formation of layer 3 it fell again. The highest sedimentation rate was in layers 12–5, these are also the layers with the highest enrichment of biogenic elements (layers 12, 7–5) and where carbonate deposition took place. The observed changes in element behaviour are related to hydrological changes in the catchment (precipitation), lake level status, and evaporation, and are ultimately driven by climate.
Usefulness and misrepresentation of phone surveys on COVID-19 and food security in Africa
Authors: Brück Tilman , Regassa Mekdim D. 
Published: December 2022

AbstractWe survey efforts that track food security in Africa using phone surveys during the COVID-19 pandemic. Phone surveys are concentrated in a few countries mostly focusing on a narrow theme. Only a few allow heterogeneous analyses across socioeconomic, spatial, and intertemporal dimensions across countries, leaving important issues inadequately enumerated. We recommend that the scientific community focuses on countries (and regions and groups within countries) where the evidence base is thin, and that policymakers in less researched areas attract more research by improving their statistical capacity, openness, and governance.
Unwinding Toric Degenerations and Mirror Symmetry for Grassmannians
Authors: Coates Tom , Doran Charles , Kalashnikov Elana 
Published: December 2022

Abstract
The most fundamental example of mirror symmetry compares the Fermat hypersurfaces in

$\mathbb {P}^n$

and

$\mathbb {P}^n/G$

, where G is a finite group that acts on

$\mathbb {P}^n$

and preserves the Fermat hypersurface. We generalize this to hypersurfaces in Grassmannians, where the picture is richer and more complex. There is a finite group G that acts on the Grassmannian

$\operatorname {{\mathrm {Gr}}}(n,r)$

and preserves an appropriate Calabi–Yau hypersurface. We establish how mirror symmetry, toric degenerations, blow-ups and variation of GIT relate the Calabi–Yau hypersurfaces inside

$\operatorname {{\mathrm {Gr}}}(n,r)$

and

$\operatorname {{\mathrm {Gr}}}(n,r)/G$

. This allows us to describe a compactification of the Eguchi–Hori–Xiong mirror to the Grassmannian, inside a blow-up of the quotient of the Grassmannian by G.
Terminus change of Kaskawulsh Glacier, Yukon, under a warming climate: retreat, thinning, slowdown and modified proglacial lake geometry
Authors: Main Brittany , Copland Luke , Smeda Braden , Kochtitzky Will , Samsonov Sergey , Dudley Jonathan , Skidmore Mark , Dow Christine , Van Wychen Wesley , Medrzycka Dorota , Higgs Eric , Mingo Laurent 
Published: December 2022

AbstractLinks between proglacial lakes and glacier dynamics are poorly understood but are necessary to predict how mountain glaciers will react to a warmer, wetter climate, where such lakes are expected to increase both in number and volume. Here, we examine a long-term (~120 year) record of terminus retreat, thinning and surface velocities from in-situ and remote sensing observations at the terminus of Kaskawulsh Glacier, Yukon, Canada, and determine the impact of a local proglacial hydrological reorganisation on glacier dynamics. After an initial deceleration during the late 1990s, terminus velocities increased at a rate of 3 m a−2from 2000–12, while proglacial Slims Lake area increased simultaneously. The rapid drainage of the lake in May 2016 substantially altered the velocity profile, decreasing annual velocities by 48% within 3 km of the terminus between 2015 and 2021, at an average rate of ~ 12.5 m a−2. A key cause of the rapid drop in glacier motion was a reduction in flotation of the lower part of the glacier terminus after lake drainage. This has important implications for glacier dynamics and provides one of the first assessments of the impacts of a rapid proglacial lake drainage event on local terminus velocities.
Inhibitory Control and Patterns of Errors in Resolution of Syntactically Ambiguous Sentences
Authors: MAY Kaitlyn E. , SCOFIELD Jason 
Published: December 2022

AbstractSentences that have more than one possible meaning are said to be syntactically ambiguous (SA). Because the correct interpretation of these sentences can be unclear, resolving SA sentences can be cognitively demanding for children, particularly with regards to inhibitory control (IC). In this study we provide three lines of evidence supporting the importance of IC in SA resolution. First, we show that children with higher IC resolve more SA sentences correctly. Second, we show that SA resolution is worse on tasks that place higher demands on IC, even for children with high IC. Third, we show that children with higher IC make different types of SA errors than children with lower IC. This study expands understanding of the cognitive skills underlying language and suggests a need to consider task demands on IC when developing educational curriculums.
Risk factors associated with device embolisation or malposition during transcatheter closure of patent ductus arteriosus
Authors: Mumtaz Zeeshan A. , Sagar Pramod , Sivakumar Kothandam , Mohakud Asish R. , Rajendran Monica , Pavithran Sreeja 
Published: December 2022

AbstractBackground:Device embolisation is a serious adverse event during transcatheter duct closure. This study analyses risk factors for embolisation.Methods:Demographic parameters, echocardiographic anatomy, haemodynamics, and procedural characteristics of consecutive duct closures in a tertiary centre over 8 years were analysed. Procedures complicated by embolisation were compared to uncomplicated procedures.Results:Fifteen embolisations occurred during 376 procedures. All except one embolisation were in infants. The pulmonary artery: aortic pressure ratio was 0.78 ± 0.22. Embolisation was seen significantly more commonly in Type C tubular ducts. Vascular plugs were more significantly associated with embolisations. Logistic regression analysis showed device embolisation was significantly higher in age group of < 6 months compared to 6–12 months (p = 0.02), higher in those with tubular ducts versus conical ducts (p = 0.003), use of vascular plugs compared to conventional duct occluders (p = 0.05), and in duct closure with undersized devices (p = 0.001). There was no in-hospital mortality. Three patients needed surgical retrieval while others were successfully managed in catheterisation laboratory.Conclusions:Device embolisation complicates 4% of transcatheter duct closures, with need for surgery in one-fifth of them. Larger ducts with high pulmonary artery pressures in younger and smaller infants are more often associated with device embolisation. Tubular ducts are more prone for embolisation compared to usual conical ducts. Softer vascular plugs are often associated with embolisations. Intentional device undersizing to avoid vascular obstruction in small patients is a frequent risk factor for embolisation. Precise echocardiographic measurements, correct occluder choice, proper technique and additional care in patients with high pulmonary artery pressures are mandatory to minimise embolisations.
Routine Reversal of the AMOC in an Ocean Model Ensemble
Authors: Dewar William K. , Parfitt Rhys , Wienders Nicolas 
Published: December 2022

AbstractWe describe a form of Atlantic Meridional Overturning Circulation (AMOC) variability that we believe has not previously appeared in observations or models. It is found in an ensemble of eddy‐resolving North Atlantic simulations that the AMOC frequently reverses in sign at ∼35°N with gyre‐wide anomalies in size and that reach throughout the water column. The duration of each reversal is roughly 1 month. The reversals are part of the annual AMOC cycle occurring in boreal winter, although not all years feature an actual reversal in sign. The occurrence of the reversals appears in our ensemble mean, suggesting it is a forced feature of the circulation. A partial explanation is found in an Ekman response to wind stress anomalies. Model ensemble simulations run with different combinations of climatological and realistic forcings argue that it is the atmospheric forcing specifically that results in the reversals, despite the signals extending into the deep ocean.
Multi‐Layered Systems for Permanent Geologic Storage of CO2 at the Gigatonne Scale
Authors: Kivi I. R. , Makhnenko R. Y. , Oldenburg C. M. , Rutqvist J. , Vilarrasa V. 
Published: December 2022

AbstractThe effectiveness of Carbon Capture and Storage (CCS) as an imperative decarbonization technology relies on the sealing capacity of a fine‐grained caprock to permanently store CO2 deep underground. Uncertainties in assessing the caprock sealing capacity increase with the spatial and temporal scales and may delay CCS deployment at the gigatonne scale. We have developed a computationally efficient transport model to capture the dynamics of basin‐wide upward CO2 migration in a multi‐layered setting over geological time scales. We find that massive capillary breakthrough and viscous flow of CO2, even through pervasively fractured caprocks, are unlikely to occur and compromise the storage security. Potential leakage from the injection reservoir is hampered by repetitive layering of overlying caprocks. This finding agrees with geologic intuition and should be understandable by the public, contributing to the development of climate policies around this technology with increased confidence that CO2 will be indefinitely contained in the subsurface.
Benthic Pleurocapsales (Cyanobacteria) Blooms Catalyzing Carbonate Precipitation and Dolomitization Following the End‐Permian Mass Extinction
Authors: Wu Siqi , Chen Zhong‐Qiang , Fang Yuheng , Pei Yu , Foster William J. 
Published: December 2022

AbstractThe widespread development of Permian/Triassic boundary microbialites is a key biosedimentary response to the mass extinction event. The microbial communities that precipitated these structures remain, however, poorly resolved. Here, we report abundant columnar microfossils from five Permian‐Triassic successions in South China. Four phases of the microfossil life cycle are recorded: baeocytes, juvenile column, mature column, and baeocyte‐splitting, which are interpreted as Pleurocapsales (cyanobacterial clade that reproduces by multiple fission). The great thickness (up to 13 m) of these microbial deposits and Raman spectrum analysis indicate a strong calcification capacity of the Pleurocapsales. Pronounced peaks of Mg/(Mg + Ca) ratios from microbialite and distinct Mg‐enrichment in microfossils indicate that Pleurocapsales blooms may also have facilitated dolomitization of the microbialites. Common occurrence, strong biomineralization capacity, baffling framework, and the close association with carbonate minerals suggest that Pleurocapsales were key constructors of post‐extinction microbialites.
Carbonate Detection With SuperCam in Igneous Rocks on the Floor of Jezero Crater, Mars
Authors: Clavé E. , Benzerara K. , Meslin P.‐Y. , Forni O. , Royer C. , Mandon L. , Beck P. , Quantin‐Nataf C. , Beyssac O. , Cousin A. , Bousquet B. , Wiens R. C. , Maurice S. , Dehouck E. , Schröder S. , Gasnault O. , Mangold N. , Dromart G. , Bosak T. , Bernard S. , Udry A. , Anderson R. B. , Arana G. , Brown A. J. , Castro K. , Clegg S. M. , Cloutis E. , Fairén A. G. , Flannery D. T. , Gasda P. J. , Johnson J. R. , Lasue J. , Lopez‐Reyes G. , Madariaga J. M. , Manrique J. A. , Le Mouélic S. , Núñez J. I. , Ollila A. M. , Pilleri P. , Pilorget C. , Pinet P. , Poulet F. , Veneranda M. , Wolf Z. U. ,   the SuperCam team
Published: December 2022

AbstractPerseverance explored two geological units on the floor of Jezero Crater over the first 420 Martian days of the Mars2020 mission. These units, the Máaz and Séítah formations, are interpreted to be igneous in origin, with traces of alteration. We report the detection of carbonate phases along the rover traverse based on laser‐induced breakdown spectroscopy (LIBS), infrared reflectance spectroscopy (IRS), and time‐resolved Raman (TRR) spectroscopy by the SuperCam instrument. Carbonates are identified through direct detection of vibrational modes of CO3 functional groups (IRS and TRR), major oxides content, and ratios of C and O signal intensities (LIBS). In Séítah, the carbonates are consistent with magnesite‐siderite solid solutions (Mg# of 0.42–0.70) with low calcium contents (<5 wt.% CaO). They are detected together with olivine in IRS and TRR spectra. LIBS and IRS also indicate a spatial association of the carbonates with clays. Carbonates in Máaz are detected in fewer points, as: (a) siderite (Mg# as low as 0.03); (b) carbonate‐containing coatings, enriched in Mg (Mg# ∼0.82) and spatially associated with different salts. Overall, using conservative criteria, carbonate detections are rare in LIBS (∼30/2,000 points), IRS (∼15/2,000 points), and TRR (1/150 points) data. This is best explained by (a) a low carbonate content overall, (b) small carbonate grains mixed with other phases, (c) intrinsic complexity of in situ measurements. This is consistent with orbital observations of Jezero crater, and similar to compositions of carbonates previously reported in Martian meteorites. This suggests a limited carbonation of Jezero rocks by locally equilibrated fluids.
Performance of Two‐Moment Stratiform Microphysics With Prognostic Precipitation in GFDL's CM4.0
Authors: Guo Huan , Ming Yi , Fan Songmiao , Wittenberg Andrew T. , Zhang Rong , Zhao Ming , Zhou Linjiong 
Published: December 2022

AbstractWe describe the model performance of a new global coupled climate model configuration, CM4‐MG2. Beginning with the Geophysical Fluid Dynamics Laboratory's fourth‐generation physical climate model (CM4.0), we incorporate a two‐moment Morrison‐Gettelman bulk stratiform microphysics scheme with prognostic precipitation (MG2), and a mineral dust and temperature‐dependent cloud ice nucleation scheme. We then conduct and analyze a set of fully coupled atmosphere‐ocean‐land‐sea ice simulations, following Coupled Model Intercomparison Project Phase 6 protocols. CM4‐MG2 generally captures CM4.0's baseline simulation characteristics, but with several improvements, including better marine stratocumulus clouds off the west coasts of Africa and North and South America, a reduced bias toward “double” Intertropical Convergence Zones south of the equator, and a stronger Madden‐Julian Oscillation (MJO). Some degraded features are also identified, including excessive Arctic sea ice extent and a stronger‐than‐observed El Nio‐Southern Oscillation. Compared to CM4.0, the climate sensitivity is reduced by about 10% in CM4‐MG2.
XPS, structural and antimicrobial studies of novel functionalized halloysite nanotubes
Authors: Al-Gaashani Rashad , Zakaria Yahya , Gladich Ivan , Kochkodan Viktor , Lawler Jenny 
Published: December 2022

AbstractA novel robust preparation method based on thermal salt decomposition has been elaborated for synthesis of halloysite nanotubes (HNTs) impregnated with silver and iron oxide nanoparticles. The developed method is simple, time-effective, and can be employed for large scale material fabrication. Different characterization techniques, including X-ray diffraction (XRD), scanning and transmission electron spectroscopy (SEM and TEM) and energy dispersive X-ray spectroscopy (EDS) have been used to characterize the functionalized HNTs composite materials. Surface elemental and chemical state analysis was conducted using X-ray photoelectron spectrometer (XPS). The functionalized HNTs exhibit enhanced total surface area (by 17.5%) and pore volume (by 11%) compare to the raw HNTs calculated by using the Brunauer–Emmett–Teller (BET) method. It was shown that functionalized HNTs possess high antimicrobial properties towards both gram- positive and gram-negative bacteria species. The enhanced surface area and bactericidal properties of functionalized HNTs could be beneficial for employing of the prepared material as low cost filtration media for water treatment applications. Molecular dynamics (FPMD) were performed to obtain insights about possible physiochemical mechanisms for chemical adsorption and on the HNT thermal stability.
Associations of overall and specific carbohydrate intake with anxiety status evolution in the prospective NutriNet-Santé population-based cohort
Authors: Kose Junko , Duquenne Pauline , Robert Margaux , Debras Charlotte , Galan Pilar , Péneau Sandrine , Hercberg Serge , Touvier Mathilde , Andreeva Valentina A. 
Published: December 2022

AbstractWe investigated the association between carbohydrate intake and anxiety evolution within the general-population NutriNet-Santé cohort (N = 15,602; 73.8% female; mean age = 53.8y; mean follow-up = 5.4y). Carbohydrate intake was estimated at baseline from ≥ 2 24-h dietary records. Trait anxiety (STAI-T) was measured once at baseline (2013–2016) and once at follow-up (2020), resulting in 4 groups: “None” = absence of high anxiety (STAI-T > 40 points) at any time point; “Transient” = high anxiety only at baseline; “Onset at follow-up” = high anxiety only at follow-up; “Persistent” = high anxiety at baseline and follow-up. Polytomous logistic regression models revealed that sweetened beverage intake was associated with higher odds of “Transient” anxiety (ORQ4vsQ1 = 1.11; 95% CI 1.02–1.21). Intake of complex carbohydrates (ORQ4vsQ1 = 1.12; 1.01–1.25) was associated with higher odds of anxiety “Onset at follow-up.” The % energy from carbohydrates (ORQ4vsQ1 = 1.11; 1.03–1.19), intakes of total carbohydrates (ORQ4vsQ1 = 1.10; 1.03–1.18) and complex carbohydrates (ORQ4vsQ1 = 1.09; 1.02–1.17) were associated with higher odds of “Persistent” anxiety, whereas 100% fruit juice intake showed lower odds of “Persistent” anxiety (ORQ4vsQ1 = 0.87; 0.81–0.94). This prospective study found significant associations between dietary carbohydrate intake and anxiety status evolution among French adults. The findings could help inform dietary interventions aimed at anxiety prevention and management.
Aktuelles Management des Basalzellkarzinoms
Authors: Krieter Manuel , Schultz Erwin 
Published: December 2022

ZusammenfassungZiel der Studie Der aktuelle Standard von Diagnostik und Therapie des Basalzellkarzinoms soll dargestellt werden. Hieraus sollen sinnvolle Vorgehensweisen für das klinische Management abgeleitet werden.Methodik Es erfolgte eine systematische Literaturrecherche in der Online-Datenbank PubMed. Die gesammelten Informationen wurden analysiert und bewertet. Aus den gewonnenen Erkenntnissen wurde ein Gesamtkonzept erstellt.Ergebnisse Das Basalzellkarzinom ist der häufigste Tumor des Menschen und die Inzidenz wird voraussichtlich künftig weiter zunehmen. Beim Management der Erkrankung wird eine eindimensionale Orientierung am klinischen bzw. histologischen Basalzellkarzinom-Subtyp der Heterogenität des Tumors nicht gerecht. Zunehmende Bedeutung gewinnt die primäre Durchführung einer Risikostratifizierung, die für die weiteren diagnostischen und therapeutischen Schritte maßgeblich ist. Goldstandard in der Behandlung bleibt weiterhin das operative Vorgehen, welches möglichst mittels mikrografisch kontrollierter Chirurgie erfolgen sollte. Daneben existieren weitere Therapieverfahren wie die Radiotherapie oder eine Reihe an topischen Therapieoptionen (photodynamische Therapie, Kryotherapie oder Applikation von 5-Fluoruracil bzw. Imiquimod), die in bestimmten Fällen zur Anwendung kommen können. Auch für fortgeschrittene oder metastasierte Basalzellkarzinome stehen mit den Hedgehog-Inhibitoren wirksame Medikamente zur Verfügung, für die inzwischen eine mehrjährige Anwendungserfahrung hinsichtlich Wirksamkeit und Umgang mit unerwünschten Ereignissen vorliegt. Mit dem PD-1-Inhibitor Cemiplimab steht seit Juni 2021 eine weitere therapeutische Option für nicht operable oder metastasierte Tumoren bereit.Schlussfolgerung Das Basalzellkarzinom wird in den kommenden Jahren weiter an Relevanz in der täglichen dermatologischen Praxis gewinnen. Eine strukturierte Herangehensweise zur Einschätzung der vorliegenden Risikokategorie des Tumors und die anschließende Festlegung des optimalen Therapieregimes sind von zentraler Bedeutung. Fortgeschrittene oder metastasierte Tumoren stellen keine aussichtslose Situation für den Patienten mehr dar. Durch adaptierte Dosierschemata kann ein nebenwirkungsbedingter Therapieabbruch unter langfristiger Hedgehog-Therapie vermieden werden. Ebenso kann das therapeutische Potenzial des PD-1-Inhibitors Cemiplimab unter dem von anderen Hautkrebsarten bekannten Nebenwirkungsprofil genutzt werden.
A Brachial Artery Pseudoaneurysm Treated with a Bifurcated Y-Shaped Artificial Vessel Graft
Authors: Oh Joon seok , Eun Seokchan 
Published: December 2022

AbstractBrachial artery aneurysms are rare diseases that may be caused by infection or trauma. We report a case of a 71-year-old man who presented with a mass in his right antecubital fossa that increased in size slowly over time. Three years ago, the patient underwent ascending and total-arch replacement with artificial vessel graft to treat aortic root and ascending aorta aneurysm. Preoperative physical examination of right upper extremity showed a nonpulsatile mass with normal pulse of axillary, brachial, and radial arteries. The mass was removed and brachial artery reconstruction was done initially using saphenous vein graft. Two months later, the patient revisited with recurrent pseudoaneurysm, involving the bifurcation point of brachial artery. Aneurysm was totally resected and the brachial artery was reconstructed by interposition graft using a bifurcated GORE-TEX artificial vessel graft. The patient healed without complication and no recurrence was observed. Artificial vessel graft is an available option for reconstruction, and revascularization of vessel defect after excision of brachial artery aneurysm may involve bifurcation point.