bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of freeze-thaw cycle and key radiation transfer parameters in a Tibetan Plateau lake using LAKE2.0 model and field observations
Authors: Li Zhaoguo , Lyu Shihua , Wen Lijuan , Zhao Lin , Ao Yinhuan , Meng Xianhong 
Published: November 2020

AbstractThe Tibetan Plateau (TP) lakes are sensitive to climate change due to its seasonal ice cover, but few studies have paid attention to the freeze-thaw process of TP lakes and its key control parameters. By combining 216 simulation experiments using the LAKE2.0 model with the observations, we evaluated the effects of ice and snow albedo, ice (Kdi) and water (Kdw) extinction coefficients on the lake ice phenology, water temperature, sensible and latent heat fluxes. The reference experiment performs well in simulating the lake temperature, with a small positive bias increasing with depth, but it underestimates the ice thickness. The increase of ice albedo, snow albedo andKdiinduce a significant decrease in water temperature. Compared with the latent heat, the sensible heat flux is more sensitive to these three parameters. The ice thickness increases almost linearly with the increase of ice albedo but decreases with the increase ofKdi. The ice thickness and frozen days vary little withKdw, but increasingKdwcan decrease the water temperature. Compared with the ice albedo, theKdiand snow albedo have a large effect on the number of frozen days. This study brings to light the necessity to improve the parameterizations of the TP lakes freeze-thaw process.
The Platform to Evaluate Athlete Knowledge of Sports Nutrition Questionnaire: a reliable and valid electronic sports nutrition knowledge questionnaire for athletes
Authors: Tam Ryan , Beck Kathryn , Scanlan Justin Newton , Hamilton Tanya , Prvan Tania , Flood Victoria , O’Connor Helen , Gifford Janelle 
Published: November 2020

AbstractReliable and valid assessment of sports nutrition knowledge can inform athlete nutrition education to address knowledge gaps. This study aimed to test the reliability and validity of an electronically administered sports nutrition knowledge tool – Platform to Evaluate Athlete Knowledge of Sports Nutrition Questionnaire (PEAKS-NQ). A 94-item PEAKS-NQ was piloted to 149 developmental athletes (DA) in New Zealand, with a subset invited to complete the PEAKS-NQ again to assess reliability. Reliability was evaluated using sign test, intraclass correlation and Cronbach’sα. Accredited sports dietitians (ASD;n255) completed the PEAKS-NQ to establish construct validity via known-groups methodology and provided relevance scores to determine the scale content validity index (S-CVI). Rasch analysis was conducted to identify potentially problematic items and test reliability. Score differences between DA and ASD were analysed using independenttor non-parametric tests. DA (n88) were 17·8 (sd1·4) years, 61·4 % female and mostly in high school (94·3 %). ASD (n45) were 37·8 (sd7·6) years, 82·2 % female, with >5 years of dietetic experience (59·1 %). ASD scored higher than DA in all sections and overall (91·5 (sd3·4)v. 67·1 (sd10·5) %) (P< 0·001). There were no differences between retests (n18;P= 0·14). Cronbach’sαwas 0·86. S-CVI indicated good content validity (0·88). Rasch analysis resulted in a fifty-item PEAKS-NQ with high item (0·91) and person (0·92) reliability. The PEAKS-NQ is reliable and valid for assessing sports nutrition knowledge which could assist practitioners effectively tailor and evaluate nutrition education.
Longitudinal patterns of lifestyle behaviours in adolescence: a latent transition analysis
Authors: Dakin Mohamed , Manneville Florian , Langlois Johanne , Legrand Karine , Lecomte Edith , Briançon Serge , Omorou Abdou Y. 
Published: November 2020

AbstractThe interdependence among eating behaviour (EB), physical activity (PA) and sedentary time (ST) suggests simultaneously identifying homogeneous profiles and describing their changes. This study aimed to (1) identify cross-sectional lifestyle behaviour profiles and their 2-year changes among French school-age adolescents and (2) identify factors associated with these profiles and changes. Longitudinal data from adolescents who participated in the PRomotion de l’ALIMentation et de l’Activité Physique trial were used. PA and ST were assessed with the International Physical Activity Questionnaire and EB with a FFQ. Profiles at baseline and their changes were identified by latent transition analysis. Multinomial logistic regression models were used to identify factors associated with profiles and their changes. Among 2390 adolescents included (14–18 years), five baseline profiles that differed mainly in EB were identified: ‘healthy diet and high PA (7·9 %)’, ‘big eater and moderate to high PA (23·8 %)’, ‘healthy diet and low PA (31·2 %)’, ‘restrictive diet and moderate PA (20·6 %)’ and ‘sugar products, nibbling and moderate PA (16·5 %)’. Young adolescents, those who were overweight or obese and socially advantaged, were more in the ‘healthy diet and low PA’ than others. Boys, older and socially less advantaged adolescents exhibited more ‘unfavourable’ than ‘mixed’ changes, while adolescents with overweight or obesity had less ‘unfavourable’ than ‘mixed’ changes. In conclusion, adolescents were twice the number in the least than the most favourable profile. Findings highlighted the importance of EB among adolescents and suggest taking adolescents’ sociodemographic and weight characteristics into account in interventions aimed at acting on adolescents’ behaviours.
Quantification of biomaterial dispersion during otologic procedures and role of barrier drapes in Covid 2019 era – a laboratory model
Authors: Lokesh P K , Chowdhary S , Pol S A , Rajeswari M , Saxena S K , Alexander A 
Published: November 2020

AbstractBackgroundAerosol generation during temporal bone surgery caries the risk of viral transmission. Steps to mitigate this problem are of particular importance during the coronavirus disease 2019 pandemic.ObjectiveTo quantify the effect of barrier draping on particulate material dispersion during temporal bone surgery.MethodsThe study involved a cadaveric model in a simulated operating theatre environment. Particle density and particle count for particles sized 1–10 μ were measured in a simulated operating theatre environment while drilling on a cadaveric temporal bone. The effect of barrier draping to decrease dispersion was recorded and analysed.ResultsBarrier draping decreased counts of particles smaller than 5 μ by a factor of 80 in the operating theatre environment. Both particle density and particle count showed a statistically significant reduction with barrier draping (p= 0.027).ConclusionSimple barrier drapes were effective in decreasing particle density and particle count in the operating theatre model and can prevent infection in operating theatre personnel.
Empires of Opportunity: German naturalists in British India and the frictions of transnational science
Authors: VON BRESCIUS MORITZ 
Published: November 2020

AbstractThis article examines the little-known but exceptionally well-documented German Schlagintweit brothers’ expedition to India and Central Asia in 1854–58, under the auspices of the British East India Company and the king of Prussia. The brothers’ careers present an instructive study of the opportunities and conflicts inherent within transnational science and the imperial labour market in colonial India in the course of the nineteenth century. Until now, historians have largely emphasized the ways in which European East India companies provided scientific practitioners with professional mobility from the seventeenth to the mid-nineteenth centuries. In these accounts, German scientific practitioners are represented as especially mobile, moving more or less freely within foreign empires, because at the time no ‘German’ empire existed that might compete for allegiances and make them appear suspect. My article, in contrast, offers a revisionist account of this globalizing picture in two senses. First, a close look at the local everyday practices of the Schlagintweit brothers’ expedition highlights the considerable tensions and frictions that accompanied imperial recruitment to South Asia—even for German scientific practitioners. What emerges instead is a rich picture of the contradictory interpretations of supposedly cooperative projects among contemporaries, and the instrumentalization of scientific activities for political ends in the Indian subcontinent, for both established and aspiring colonial powers. Second, the ways in which the Schlagintweits’ scientific expedition was represented and remembered in subsequent decades shows how the politics around transnational science projects only intensified with German unification.
Post-acute psychological effects of classical serotonergic psychedelics: a systematic review and meta-analysis
Authors: Goldberg Simon B. , Shechet Benjamin , Nicholas Christopher R. , Ng Chi Wing , Deole Geetanjali , Chen Zhuofan , Raison Charles L. 
Published: November 2020

AbstractBackgroundScientific interest in the therapeutic effects of classical psychedelics has increased in the past two decades. The psychological effects of these substances outside the period of acute intoxication have not been fully characterized. This study aimed to: (1) quantify the effects of psilocybin, ayahuasca, and lysergic acid diethylamide (LSD) on psychological outcomes in the post-acute period; (2) test moderators of these effects; and (3) evaluate adverse effects and risk of bias.MethodsWe conducted a systematic review and meta-analysis of experimental studies (single-group pre-post or randomized controlled trials) that involved administration of psilocybin, ayahuasca, or LSD to clinical or non-clinical samples and assessed psychological outcomes ⩾24 h post-administration. Effects were summarized by study design, timepoint, and outcome domain.ResultsA total of 34 studies (24 unique samples,n= 549, mean longest follow-up = 55.34 weeks) were included. Classical psychedelics showed significant within-group pre-post and between-group placebo-controlled effects on a range of outcomes including targeted symptoms within psychiatric samples, negative and positive affect-related measures, social outcomes, and existential/spiritual outcomes, with large between-group effect in these domains (Hedges'gs = 0.84 to 1.08). Moderator tests suggest some effects may be larger in clinical samples. Evidence of effects on big five personality traits and mindfulness was weak. There was no evidence of post-acute adverse effects.ConclusionsHigh risk of bias in several domains, heterogeneity across studies, and indications of publication bias for some models highlight the need for careful, large-scale, placebo-controlled randomized trials.
Differentiating the abnormalities of social and monetary reward processing associated with depressive symptoms
Authors: Zhang Dandan , Shen Junshi , Bi Rong , Zhang Yueyao , Zhou Fang , Feng Chunliang , Gu Ruolei 
Published: November 2020

AbstractBackgroundReward dysfunction is a major dimension of depressive symptomatology, but it remains obscure if that dysfunction varies across different reward types. In this study, we focus on the abnormalities in anticipatory/consummatory processing of monetary and social reward associated with depressive symptoms.MethodsForty participants with depressive symptoms and forty normal controls completed the monetary incentive delay (MID) and social incentive delay (SID) tasks with event-related potential (ERP) recording.ResultsIn the SID but not the MID task, both the behavioral hit rate and the ERP component contingent negative variation (CNV; indicating reward anticipation) were sensitive to the interaction between the grouping factor and reward magnitude; that is, the depressive group showed a lower hit rate and a smaller CNV to large-magnitude (but not small-magnitude) social reward cues compared to the control group. Further, these two indexes were correlated with each other. Meanwhile, the ERP components feedback-related negativity and P3 (indicating reward consumption) were sensitive to the main effect of depression across the MID and SID tasks, though this effect was more prominent in the SID task.ConclusionsOverall, we suggest that depressive symptoms are associated with deficits in both the reward anticipation and reward consumption stages, particularly for social rewards. These findings have a potential to characterize the profile of functional impairment that comprises and maintains depression.
When complementation gets specific: A study of collocational preferences in verb–object combinations in Norwegian
Authors: Haugen Tor Arne 
Published: November 2020

AbstractThis study investigates to what extent there are collocational preferences in the verb–object combinations of a large corpus of Norwegian and how important recurrent combinations are in usage. The material has been extracted from a large web-corpus of 700 million tokens and consists of dependency-based verb–object combinations. The overall importance of collocational preferences is demonstrated by the fact that the most frequent 5% of the verb–object combinations account for as much as 64% of the verb–object tokens in the material. The database of verb–object combinations contains measures of collocational strength and thereby allows us to model the mutual strength between the exemplars in the clusters found with individual verbs. Based on some studies of individual verbs and verb pairs, it seems safe to assume that speakers do distinguish between and prefer certain conventional verb–object combinations to other equally grammatical, equally transparent and equally understandable alternatives, and that speakers have access to complementation information at the level of exemplars.
Drawing transmission graphs for COVID-19 in the perspective of network science
Authors: Gürsakal N. , Batmaz B. , Aktuna G. 
Published: November 2020

Abstract
When we consider a probability distribution about how many COVID-19-infected people will transmit the disease, two points become important. First, there could be super-spreaders in these distributions/networks and second, the Pareto principle could be valid in these distributions/networks regarding estimation that 20% of cases were responsible for 80% of local transmission. When we accept that these two points are valid, the distribution of transmission becomes a discrete Pareto distribution, which is a kind of power law. Having such a transmission distribution, then we can simulate COVID-19 networks and find super-spreaders using the centricity measurements in these networks. In this research, in the first we transformed a transmission distribution of statistics and epidemiology into a transmission network of network science and second we try to determine who the super-spreaders are by using this network and eigenvalue centrality measure. We underline that determination of transmission probability distribution is a very important point in the analysis of the epidemic and determining the precautions to be taken.
Genetic diversity and structure analysis ofVigna unguiculataL. (Walp.) landraces from southeastern Mexico using ISSR markers
Authors: dos Santos L. F. C. , Ferrer M. M. , Ruenes-Morales M. R. , Montañez-Escalante P. I. , Andueza-Noh R. H. , Jiménez-Osornio J. 
Published: November 2020

AbstractCowpea (Vigna unguiculataL. Walp.) is an important grain legume in tropical and subtropical regions. It requires low resource inputs and has a high nutritional value. Therefore, cowpea can play an important role in the development of agriculture. In southern Mexico, Mayan farmers have conserved and developed cowpea landraces for centuries. Nevertheless, information on their genetic diversity, conservation status and potential use is minimal. To generate information toward sustainable use, management and conservation of this species, we evaluated the genetic diversity and structure of 20 cowpea landraces from southeast Mexico using 10 inter-simple sequence repeat (ISSR) molecular markers. These ISSR markers generated 68 loci with a 67.7% polymorphism rate and average polymorphic information content of 0.36. The results of Bayesian assignation and the UPGMA analysis suggest the formation of two main groups defined by their genetic origin in southeast Mexico. High levels of genetic structure were found with a moderate level of genetic diversity distributed mainly between landraces. Low levels of intra-landrace variability were observed. Two landraces (P5 and P12) from Calakmul resulted in the high levels of genetic diversity. The selected markers were efficient at assessing genetic variability among Mexican cowpea landraces, providing valuable information that can be used in local conservation and participatory breeding programmes.
Control of glyphosate-resistant horseweed and giant ragweed in soybean with halauxifen-methyl applied preplant
Authors: Quinn Jessica , Ashigh Jamshid , Soltani Nader , Hooker David C. , Robinson Darren E. , Sikkema Peter H. 
Published: November 2020

AbstractHorseweed and giant ragweed are competitive, annual weeds that can negatively impact crop yield. Biotypes of glyphosate-resistant (GR) giant ragweed and horseweed were first reported in 2008 and 2010 in Ontario, respectively. GR horseweed has spread throughout the southern portion of the province. The presence of GR biotypes poses new challenges for soybean producers in Canada and the United States. Halauxifen-methyl is a recently registered selective herbicide against broadleaf weeds for preplant use in corn and soybean. There is limited literature on the efficacy of halauxifen-methyl on GR horseweed and giant ragweed when combined with currently registered products in Canada. The purpose of this study was to determine the effectiveness of halauxifen-methyl applied alone and tank-mixed to control GR giant ragweed and GR horseweed in glyphosate and dicamba-resistant (GDR) soybean in southwestern Ontario. Six field experiments were conducted separately for each weed species over 2018 and 2019. Halauxifen-methyl applied alone offered 72% control of GR horseweed at 8 wk after application (WAA). Control was improved to >91% when halauxifen-methyl applied in combination with metribuzin, saflufenacil, chlorimuron-ethyl + metribuzin, and saflufenacil + metribuzin. At 8 WAA, halauxifen-methyl provided 11% control of GR giant ragweed, and 76% to 88% control when glyphosate/2,4-D choline, glyphosate/dicamba, glyphosate/2,4-D choline + halauxifen-methyl, and glyphosate/dicamba + halauxifen-methyl were used. We conclude that halauxifen-methyl applied preplant in a tank-mixture can provide effective control of GR giant ragweed and horseweed in GDR soybean.
Ps‐P Tomography of a Midcrustal Magma Reservoir Beneath Cleveland Volcano, Alaska
Authors: Portner Daniel Evan , Wagner Lara S. , Janiszewski Helen A. , Roman Diana C. , Power John A. 
Published: November 2020

AbstractSeismic tomography of the crust is an essential tool for studying the three‐dimensional structure of magmatic plumbing systems feeding active volcanoes, but it is often limited in resolution by the absence of deep local seismicity. Teleseismic receiver functions can be used to illuminate local structural variations, but typically do not account for the effects of three‐dimensional velocity heterogeneities. Here we harness the complementary strengths of both techniques by processing Ps‐P delay times derived from teleseismic receiver functions in a tomographic S wave inversion. Using our inversion technique, we produce the first tomographic crustal velocity model beneath Cleveland Volcano, identifying a vertically extensive high VP/VS anomaly beneath the volcano that likely signifies a middle‐to‐lower crustal magma reservoir. The observation is the first of its kind in the central Aleutians, illustrating the potential of our technique to advance our understanding of crustal magmatic systems without broad seismic networks or distributed local seismicity.
Gravitationally Consistent Mean Barystatic Sea Level Rise From Leakage‐Corrected Monthly GRACE Data
Authors: Dobslaw Henryk , Dill Robert , Bagge Meike , Klemann Volker , Boergens Eva , Thomas Maik , Dahle Christoph , Flechtner Frank 
Published: November 2020

AbstractGravitationally consistent solutions of the Sea Level Equation from leakage‐corrected monthly‐mean GFZ RL06 Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow‐On (GRACE‐FO) Stokes coefficients reveal that barystatic sea level averaged over the whole global ocean was rising by 1.72 mm a−1 during the period April 2002 until August 2016. This rate refers to a truely global ocean averaging domain that includes all polar and semienclosed seas. The result corresponds to 2.02 mm a−1 mean barystatic sea level rise in the open ocean with a 1,000 km coastal buffer zone as obtained from a direct spatial integration of monthly GRACE data. The bias of +0.3 mm a−1 is caused by below‐average barystatic sea level rise in close proximity to coastal mass losses induced by the smaller gravitational attraction of the remaining continental ice and water masses. Alternative spherical harmonics solutions from CSR, JPL, and TU Graz reveal open‐ocean rates between 1.94 and 2.08 mm a−1, thereby demonstrating that systematic differences among the processing centers are much reduced in the latest release. We introduce in this paper a new method to approximate spatial leakage from the differences of two differently filtered global gravity fields. A globally constant and time‐invariant scale factor required to obtain full leakage from those filter differences is found to be 3.9 for GFZ RL06 when filtered with DDK3, and lies between 3.9 and 4.4 for other processing centers. Spatial leakage is estimated for every month in terms of global grids, thereby providing also valuable information of intrabasin leakage that is potentially relevant for hydrologic and hydrometeorological applications.
Mesoscale Eddy Dissipation by a “Zoo” of Submesoscale Processes at a Western Boundary
Authors: Evans Dafydd Gwyn , Frajka‐Williams Eleanor , Naveira Garabato Alberto C. , Polzin Kurt L. , Forryan Alexander 
Published: November 2020

AbstractMesoscale eddies are ubiquitous dynamical features that tend to propagate westward and disappear along ocean western boundaries. Using a multiscale observational study, we assess the extent to which eddies dissipate via a direct cascade of energy at a western boundary. We analyze data from a ship‐based microstructure and velocity survey, and an 18‐month mooring deployment, to document the dissipation of energy in anticyclonic and cyclonic eddies impinging on the topographic slope east of the Bahamas, in the North Atlantic Ocean. These observations reveal high levels of turbulence where the steep and rough topographic slope modified the intensified northward flow associated with, in particular, anticyclonic eddies. Elevated dissipation was observed both near‐bottom and at mid depths (200–800 m). Near‐bottom turbulence occurred in the lee of a protruding escarpment, where elevated Froude numbers suggest hydraulic control. Energy was also radiated in the form of upward‐propagating internal waves. Elevated dissipation at mid depths occurred in regions of strong vertical shear, where the topographic slope modified the vertical structure of the northward eddy flow. Here, low Richardson numbers and a local change in the isopycnal gradient of potential vorticity (PV) suggest that the elevated dissipation was associated with horizontal shear instability. Elevated mid‐depth dissipation was also induced by topographic steering of the flow. This led to large anticyclonic vorticity and negative PV adjacent to the topographic slope, suggesting that centrifugal instability underpinned the local enhancement in dissipation. Our results provide a mechanistic benchmark for the realistic representation of eddy dissipation in ocean models.