bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efficiency Analysis of Savonius-Style Wind Turbine in Hydrodynamic Flow Field
Authors: Paul Diplina , Banerjee Abhisek 
Published: December 2021

Abstract
The world’s population is going to surge past 10 billion by 2050. In order to cater to the energy demand of the ever-increasing posterity, scientists across the globe are working to harness power from renewable sources of energy. In pursuit of studying alternative energy sources, Savonius-style turbines (SSTs) have gained increased attention in the past few years. However, considering the low operational efficiency, design aspects of these turbines need to be improved. In this study, experimental investigations have been carried out using two designs of SSTs namely classical SST and elliptic shaped SST. The study has been carried out using an experimental setup that could produce a low head of &lt; 1 m and water flow velocity within a range of 0.4 m/s to 1.2 m/s; the velocities at which perennial rivers flow. This study presents the comparison and analysis of the coefficients of power and torque measurements at various tip speed ratios. The study shows that there exists a local maximum when coefficient of performance is plotted with TSR. Out of the two profiles studied here, elliptic shaped SST generated a coefficient of power of 0.392 and a coefficient of torque of 0.538, when the water head was set at 1 m and flow velocity of 0.47 m/s. Experimental data reported here exhibit a gain of 16 % using an elliptic shaped SST over classical design.
Assessment of LES and RANS-LES Hybrid Models for Heat Transfer Predictions in Effusion Cooled Combustor Liners
Authors: Verma Vishwas , Manoharan Kiran , Basani Jaydeep , Brandt Dustin 
Published: December 2021

Abstract
Accurate numerical predictions of surface heat flux on combustor liners in the presence of effusion cooling involve appropriate resolution of turbulent boundary layers and mixing of two different streams. Precise surface heat flux and wall temperature predictions are necessary for the optimal design of combustor liners to avoid burnout and damage to the combustor. Reynolds Average Navier Stokes (RANS) model has shown superior wall heat transfer predictions for steady flows; however, in combustor liners involving complex effusion jet mixing patterns, it fails. On the other hand, Large Eddy Simulation (LES) can capture to a good extent core flow mixing in such situations, but it requires very high-resolution near-wall meshes for accurate surface heat flux predictions. To overcome these issues, a hybrid model using RANS in the near-wall region and LES in the core region have been proposed for better wall heat transfer predictions. In this study, a numerical analysis is carried out to test the capability of RANS, LES and hybrid models (SBES, WMLES) for wall heat transfer predictions. The computational setup is a flat plate where freestream high-speed flow approaches a thirty-five degree inclined jet. The study is divided into two regions of interest, one before the jet freestream interaction and another post-interaction. We demonstrate with the SBES approach, surface heat flux can be predicted to much better agreement with the test data in both the regions of interest. Also, it is shown that such results can be obtained with much coarser mesh resolution, hence less computational cost, with hybrid models than pure LES.
Oxygen Uptake at Critical Speed and Power in Running: Perspectives and Practical Applications
Authors: Patoz Aurélien , Blokker Thomas , Pedrani Nicola , Spicher Romain , Borrani Fabio , Malatesta Davide 
Published: December 2021

Purpose: Intensity domains are recommended when prescribing exercise, and critical power/speed (CP/CS) was designated the “gold standard” when determining maximal metabolic steady state. CS is the running analog of CP for cycle ergometry. However, a CP for running could be useful for controlling intensity when training in any type of condition. Therefore, this study aimed to estimate external, internal, and total CP (CPext, CPint, and CPtot), obtained based on running power calculations, and verified whether they occurred at the same percentage of peak oxygen uptake as the usual CS. Furthermore, this study examined whether selecting strides at the start, half, or end of the exhaustive runs to calculate running power influenced the estimation of the 3 CPs. Methods: Thirteen male runners performed a maximal incremental aerobic test and 4 exhaustive runs (90%, 100%, 110%, 120% peak speed) on a treadmill. The estimations of CS and CPs were obtained using a 3-parameter mathematical model fitted using weighted least square. Results: CS was estimated at 4.3 m/s while the estimates of CPext, CPint, and CPtot were 5.2, 2.6, and 7.8 W/kg, respectively. The corresponding for CS was 82.5 percentage of peak oxygen uptake and 81.3, 79.7, and 80.6 percentage of peak oxygen uptake for CPext, CPint, and CPtot, respectively. No systematic bias was reported when comparing CS and CPext, as well as the 3 different CPs, whereas systematic biases of 2.8% and 1.8% were obtained for the comparison among CS and CPint and CPtot, respectively. Nonetheless, the for CS and CPs were not statistically different (P = .09). Besides, no effect of the time stride selection for CPs as well as their resulting was obtained (P ≥ .44). Conclusions: The systematic biases among at CS and CPint and CPtot were not clinically relevant. Therefore, CS and CPs closely represent the same fatigue threshold in running. The knowledge of CP in running might prove to be useful for both athletes and coaches, especially when combined with instantaneous running power. Indeed, this combination might help athletes controlling their targeted training intensity and coaches prescribing a training session in any type of condition.
Empirical constraints on progressive shock metamorphism of magnetite from the Siljan impact structure, Sweden
Authors: Holm-Alwmark Sanna , Erickson Timmons M. , Cavosie Aaron J. 
Published: December 2021

Abstract
Little is known about the microstructural behavior of magnetite during hypervelocity impact events, even though it is a widespread accessory mineral and an important magnetic carrier in terrestrial and extraterrestrial rocks. We report systematic electron backscatter diffraction crystallographic analysis of shock features in magnetite from a transect across the 52-km-diameter ca. 380 Ma Siljan impact structure in Sweden. Magnetite grains in granitoid samples contain brittle fracturing, crystal-plasticity, and lamellar twins. Deformation twins along {111} with shear direction of &lt;112&gt; are consistent with spinel-law twins. Inferred bulk shock pressures for the investigated samples, as constrained by planar deformation features (PDFs) in quartz and shock twins in zircon, range from 0 to 20 GPa; onset of shock-induced twinning in magnetite is observed at &gt;5 GPa. These results highlight the utility of magnetite to record shock deformation in rocks that experience shock pressures &gt;5 GPa, which may be useful in quartz-poor samples. Despite significant hydrothermal alteration and the variable transformation of host magnetite to hematite, shock effects are preserved, which demonstrates that magnetite is a reliable mineral for preserving shock deformation over geologic time.
Rotating night shift work, sleep duration and elevated gamma-glutamyl transpeptidase among steelworkers: cross-sectional analyses from a Chinese occupational cohort
Authors: Li Qinglin , Zhang Shengkui , Wang Han , Xue Chao , Zhang Xiaohong , Qin Sheng , Yuan Juxiang 
Published: December 2021

ObjectivesThis study aimed to evaluate the separate and combined effects of rotating night shift work and lifestyle factors with elevated gamma-glutamyl transpeptidase (GGT) among steelworkers.Design, setting and participantsThis cross-sectional study used the baseline information from a Chinese occupational cohort. The in-service workers of the production department of Tangsteel Company who participated in the occupational health examination in Tangshan from February to June 2017 were selected as the research objects.Main outcome measuresThe separate and combined effects of rotating night shift work and lifestyle factors with elevated GGT among steelworkers.ResultsThe information of 7031 subjects from the production department of Tangsteel Company was analysed. Results showed that the current shift workers and the workers with the duration of night shifts>19 years, the cumulative number of night shifts>1774 nights, the average frequency of night shifts≤7 nights/month and the average frequency of night shifts>7 nights/month had elevated odds of elevated GGT, compared with those who never worked night shifts, and ORs, (95% CIs) were 1.39, (1.10 to 1.75), 1.46, (1.15 to 1.86), 1.46, (1.15 to 1.85), 1.34, (1.04 to 1.73) and 1.37, (1.09 to 1.74) after adjustment for potential confounders. The independent effect of shorter sleep duration (<7 hours/day) on elevated GGT was not statistically significant. Among workers who had shorter sleep duration, the association between rotating night shift work and elevated GGT was statistically significant, but no associations were found among workers with the sleep duration of ≥7 hours/day. In addition, other lifestyle factors affected the association between rotating night shift work and elevated GGT.ConclusionsRotating night shift work is associated with elevated GGT among steelworkers. In particular, the effect of rotating night shift work on elevated GGT was affected by sleep duration and other lifestyle factors.
POMACS V5, N3, December 2021 Editorial
Authors: Carlsson Niklas , Cohen Edith , Robert Philippe 
Published: December 2021

The ACM Proceedings of the ACM on Measurement and Analysis of Computing Systems (POMACS) focuses on the measurement and performance evaluation of computer systems and operates in close collaboration with the ACM Special Interest Group SIGMETRICS. All papers in this issue of POMACS will be presented during the ACM SIGMETRICS/Performance 2022 conference.
The issue contains papers selected by the editorial board via a rigorous review process that follows a hybrid conference and journal model, with reviews conducted by the 93 members of our POMACS editorial board. Each paper was either conditionally accepted (and shepherded), allowed a "one-shot" revision (to be resubmitted to one of the subsequent two deadlines), or rejected (with resubmission allowed after a year). For this issue, which represents the summer deadline, POMACS publishes 17 papers out of 71 submissions. All submitted papers received at least 3 reviews and we held an online TPC meeting.
Based on the indicated primary track, roughly 37% of the submissions were in the Theory track, 30% were in the Measurement & Applied Modeling track, 20% were in the Systems track, and 14% were in the Learning track.
Many people contributed to the success of this issue of POMACS. First, we would like to thank the authors, who submitted their best work to SIGMETRICS/POMACS. Second, we would like to thank the TPC members who provided constructive feedback in their reviews to authors and participated in the online discussions and TPC meetings. We also thank the several external reviewers who provided their expert opinion on specific submissions that required additional input. We are also grateful to the SIGMETRICS Board Chair, Giuliano Casale, and to past TPC Chairs, Anshul Gandhi, Negar Kiyavash, and Jia Wang, who provided a wealth of information and guidance (including a template for writing this editorial note!). Finally, we are grateful to the Organization Committee and to the SIGMETRICS Board for their ongoing efforts and initiatives for creating an exciting program for ACM SIGMETRICS/Performance 2022.
Belon, as aves e os ossos: tradução do capítulo XII da Histoire de la nature des oyseaux (1555)
Authors: Navarro Pedro de Lima 
Published: December 2021

De modo análogo a outros estudiosos no período do Renascimento, Pierre Belon (1517-1564), se dedicou ao estudo de vários aspectos do mundo natural, porém ele é geralmente lembrado por uma ilustração presente na obra L’histoire de la nature des oyseaux (1555) onde chama a atenção para as semelhanças anatômicas entre os esqueletos de aves e do homem. O propósito principal deste artigo é tornar o capítulo da referida obra onde figura a comparação entre o esqueleto humano e o das aves, mais acessível para os falantes de português. Acrescentamos também informações sobre sua vida, obra e recepção de suas ideias. Esperamos que este trabalho possa contribuir para a difusão das ideias de Belon e seu contexto.
Posterior National Institutes of Health Stroke Scale Improves Prognostic Accuracy in Posterior Circulation Stroke
Authors: Alemseged Fana , Rocco Alessandro , Arba Francesco , Schwabova Jaroslava Paulasova , Wu Teddy , Cavicchia Leone , Ng Felix , Ng Jo Lyn , Zhao Henry , Williams Cameron , Sallustio Fabrizio , Balabanski Anna H. , Tomek Ales , Parson Mark W. , Mitchell Peter J. , Diomedi Marina , Yassi Nawaf , Churilov Leonid , Davis Stephen M. , Campbell Bruce C.V. , Parsons M. , McDonald A. , Pesavento L. , Coote S. , Yan Bernard , Dowling Rick , Bush Steven , Ng F.C. , Thijs V. , Kleinig Timothy , Drew R. , Garcia Esperon C. , Spratt N. , Shah D. , Wu T. , Fink J. , Di Giuliano F. , Nappini S. , Morotti A. , Cavallini A. , Boulouis G. , Benhassen W. , Puetz V. , Kaiser D. , Oxley T.J. , Fifi J.T. 
Published: December 2021

Background and Purpose:
The National Institutes of Health Stroke Scale (NIHSS) underestimates clinical severity in posterior circulation stroke and patients presenting with low NIHSS may be considered ineligible for reperfusion therapies. This study aimed to develop a modified version of the NIHSS, the Posterior NIHSS (POST-NIHSS), to improve NIHSS prognostic accuracy for posterior circulation stroke patients with mild-moderate symptoms.

Methods:
Clinical data of consecutive posterior circulation stroke patients with mild-moderate symptoms (NIHSS <10), who were conservatively managed, were retrospectively analyzed from the Basilar Artery Treatment and Management registry. Clinical features were assessed within 24 hours of symptom onset; dysphagia was assessed by a speech therapist within 48 hours of symptom onset. Random forest classification algorithm and constrained optimization were used to develop the POST-NIHSS in the derivation cohort. The POST-NIHSS was then validated in a prospective cohort. Poor outcome was defined as modified Rankin Scale score ≥3 at 3 months.

Results:

We included 202 patients (mean [SD] age 63 [14] years, median NIHSS 3 [interquartile range, 1–5]) in the derivation cohort and 65 patients (mean [SD] age 63 [16] years, median NIHSS 2 [interquartile range, 1–4]) in the validation cohort. In the derivation cohort, age, NIHSS, abnormal cough, dysphagia and gait/truncal ataxia were ranked as the most important predictors of functional outcome. POST-NIHSS was calculated by adding 5 points for abnormal cough, 4 points for dysphagia, and 3 points for gait/truncal ataxia to the baseline NIHSS. In receiver operating characteristic analysis adjusted for age, POST-NIHSS area under receiver operating characteristic curve was 0.80 (95% CI, 0.73–0.87) versus NIHSS area under receiver operating characteristic curve, 0.73 (95% CI, 0.64–0.83),
P
=0.03. In the validation cohort, POST-NIHSS area under receiver operating characteristic curve was 0.82 (95% CI, 0.69–0.94) versus NIHSS area under receiver operating characteristic curve 0.73 (95% CI, 0.58–0.87),
P
=0.04.

Conclusions:
POST-NIHSS showed higher prognostic accuracy than NIHSS and may be useful to identify posterior circulation stroke patients with NIHSS <10 at higher risk of poor outcome.
Survival in a Nazi Concentration Camp: The Spanish Prisoners of Mauthausen
Authors: Domènech Jordi , Fernández Juan Jesús 
Published: December 2021

Abstract
Analysis of the extent to which higher social class (along with other demographic variables) was an advantage for Spanish prisoners at the Mauthausen concentration camp advances the study of the determinants of survival in contexts of indiscriminate violence. Use of Cox event-history models, based on detailed information collected by well-placed Spaniards at the camp, reveals that individuals from higher social classes who filled administrative positions at Mauthausen were prominent in support networks and had a good command of the German language were more likely to survive. The risk of death was highest among unskilled agricultural workers, followed by unskilled non-agricultural workers.
Chastity, Foreign Theories, and National Heritage Reorganization: Hu Shi (1892-1962) Addresses ‘The Woman Problem’
Authors: Orly Selena , Edwards Louise 
Published: December 2021

Abstract
This article examines Hu Shi’s view of “The Woman Problem” (funü wenti) through his tripartite approach for achieving a Chinese Renaissance as enunciated in his 1919 article “The Significance of the New Tide” (Xinsichao de yiyi). Our reading of the 1919 article reveals that Hu conceived of the twentieth-century Chinese Renaissance as a meticulously planned reform project based on a tripartite approach that involved: (1) researching concrete problems (yanjiu wenti), (2) importing foreign theories (shuru xueli), and (3) reorganizing national heritage (zhengli guogu). The article aims to demonstrate how Hu applied each of these interconnected methods to “The Woman Problem.” Previous scholarship on Hu’s views on women has failed to notice that it was methodologically integrated into his overarching Chinese Renaissance project and simultaneously underpinned by his academic program to reorganize national heritage. This essay also probes the quality of Hu Shi’s ‘feminism’ by expounding how his analysis of “The Woman Problem” was integrated into his overarching program to achieve a Chinese Renaissance.
Governing the covid-19 Pandemic in the Middle East and North Africa: Containment Measures as a Public Good
Authors: Koehler Kevin , Schulhofer-Wohl Jonah 
Published: December 2021

Abstract
What determined how governments in the Middle East and North Africa reacted to the global covid-19 pandemic? We develop a theoretical argument based on the political costs of different policy options and assess its empirical relevance. Distinguishing between the immediate costs associated with decisive action and the potential costs of uncontrolled spread that are likely to accrue over the long term, we argue that leaders who have fewer incentives to provide public goods to stay in power will lock down later than their more constrained counterparts. We find empirical support for this argument in statistical analyses covering the 1 January – 30 November 2020 period using the Oxford covid-19 Government Response Tracker (OxCGRT) and our own original data on the timing of mosque closures and strict lockdowns across the region. We also illustrate our argument with a description of the response to the pandemic in Egypt.
Does More Moisture in the Atmosphere Lead to More Intense Rains?
Authors: Yano Jun-Ichi , Manzato Agostino 
Published: December 2021

AbstractIt is typically interpreted that more moisture in the atmosphere leads to more intense rains. This notion may be supported, for example, by taking a scatterplot between rain and column precipitable water. The present paper suggests, however, that the main consequence of intense rains with more moisture in the atmosphere is that there is a higher chance of occurrence rather than an increase in the expected magnitude. This tendency equally applies to any rains above 1 mm (6 h)−1to a lesser extent. The result is derived from an analysis of 33 local rain gauge station data and a shared sounding over Friuli Venezia Giulia, northeast Italy.Significance StatementMoisture is the source of clouds. Clouds, in turn, are source of rain. So we may expect that more moisture in the atmosphere causes more intense rains. We may further speculate that with more moisture in the atmosphere as a consequence of the global warning, we must face more catastrophic rain events and floods. However, this paper, by analyzing data over Friuli Venezia Giulia, northeast Italy, suggests otherwise: more moisture indeed increases frequencies of intense rains, but not their magnitudes as much.
European LeukemiaNet 2017 risk stratification for acute myeloid leukemia: validation in a risk-adapted protocol
Authors: Bataller Alex , Garrido Ana , Guijarro Francesca , Oñate Guadalupe , Diaz-Beyá Marina , Arnan Montserrat , Tormo Mar , Vives Susana , de Llano María Paz Queipo , Coll Rosa , Gallardo David , Vall-Llovera Ferran , Escoda Lourdes , Garcia-Guiñon Antonio , Salamero Olga , Sampol Antònia , Merchan Brayan M. , Bargay Joan , Castaño-Díez Sandra , Esteban Daniel , Oliver-Caldés Aina , Rivero Andrea , Mozas Pablo , López-Guerra Mònica , Pratcorona Marta , Zamora Lurdes , Costa Dolors , Rozman Maria , Nomdedéu Josep F. , Colomer Dolors , Brunet Salut , Sierra Jorge , Esteve, Jordi 
Published: December 2021

Abstract
The 2017 European LeukemiaNet (ELN 2017) guidelines for the diagnosis and management of acute myeloid leukemia (AML) have become fundamental guidelines to assess the prognosis and postremission therapy of patients. However, they have been retrospectively validated in few studies with patients included in different treatment protocols. We analyzed 861 patients included in the Cooperativo Para el Estudio y Tratamiento de las Leucemias Agudas y Mielodisplasias-12 risk-adapted protocol, which indicates cytarabine-based consolidation for patients allocated to the ELN 2017 favorable-risk group, whereas it recommends allogeneic stem cell transplantation (alloSCT) as a postremission strategy for the ELN 2017 intermediate- and adverse-risk groups. We retrospectively classified patients according to the ELN 2017, with 327 (48%), 109 (16%), and 245 (36%) patients allocated to the favorable-, intermediate-, and adverse-risk group, respectively. The 2- and 5-year overall survival (OS) rates were 77% and 70% for favorable-risk patients, 52% and 46% for intermediate-risk patients, and 33% and 23% for adverse-risk patients, respectively. Furthermore, we identified a subgroup of patients within the adverse group (inv(3)/t(3;3), complex karyotype, and/or TP53 mutation/17p abnormality) with a particularly poor outcome, with a 2-year OS of 15%. Our study validates the ELN 2017 risk stratification in a large cohort of patients treated with an ELN-2017 risk-adapted protocol based on alloSCT after remission for nonfavorable ELN subgroups and identifies a genetic subset with a very poor outcome that warrants investigation of novel strategies.