bluuebunny/crossref_metadata_2025_split huggingface dataset:
First Evidence of Enhanced Recombination in Astrophysical Environments and the Implications for Plasma Diagnostics
Authors: Nemer A. , Sterling N. C. , Raymond J. , Dupree A. K. , García-Rojas J. , Wang Qianxia , Pindzola M. S. , Ballance C. P. , Loch S. D. 
Published: December 2019

Abstract
We report the first unambiguous observational evidence of Rydberg Enhanced Recombination (RER), a potentially important recombination mechanism that has hitherto been unexplored in low-temperature photoionized plasmas. RER shares similarities with dielectronic recombination, with the difference that the electron is captured into a highly excited state below the ionization threshold—rather than above the threshold—of the recombining ion. We predict transitions of carbon and oxygen ions that are formed via the RER process, and their relative strengths with collisional-radiative spectral models. Optical C ii RER features are detected in published high-resolution spectra of eight planetary nebulae, and a C iii transition has been found in the ultraviolet spectrum in a symbiotic star system. The relative intensities of these lines are consistent with their production by this recombination mechanism. Because RER has not previously been accounted for in photoionized plasmas, its inclusion in models can significantly impact the predicted ionization balance and hence abundance calculations of important astrophysical species. Calculations for

C

+

suggest that the enhancement in the total recombination rate can amount to a factor of 2.2 at 8100 K, increasing to 7.5 at T = 3500 K. These results demonstrate the importance of including RER in models of photoionized astrophysical plasmas and in elemental abundance determinations.
Feature Matching Conditional GAN for Fast Radio Burst Localization with Cluster-fed Telescope
Authors: Wu Decheng , Cao Hailin , Lv Nanjie , Fan Jin , Tan Xiaoheng , Yang Shizhong 
Published: December 2019

Abstract
For the real-time transient localization, there are large uncertainties of the fast radio burst (FRB) positions due to the undersampled focal plane in cluster-fed telescopes. A novel focal-field feature matching algorithm based on a conditional generative adversarial network, F3M-cGAN, is proposed for FRB localization. By exploiting the multiple frequency characteristics of FRBs, an improved three-dimensional convolution autoencoder is developed to jointly synthesize focal–field distribution (FFD) features. Meanwhile, the received signals are input as a condition to the discriminator to strengthen the mapping relation. Moreover, an estimator based on a deep neural network is introduced to estimate the position of the FRBs, and a position encoder is designed to enhance the position precision according to the energy distribution. For pattern reconstruction, texture loss is used as feedback for the generator. Based on the alternate training process of the F3M-cGAN framework, effective reconstruction and position estimation could be achieved. A scale model of the Five-hundred-meter Aperture Spherical radio Telescope is used to verify the effectiveness of the proposed method. The simulation results demonstrate that this approach can accurately reconstruct FFD features with limited feeds, and realize a higher real-time localizing precision than the angular resolution of a radio telescope. Furthermore, the proposed method can increase the search area for transients.
Dans ou hors du sport international ? Les dirigeants chinois dans les années 1950 et 1960
Authors: Shuman Amanda 
Published: December 2019

Cet article souhaite analyser le rôle des dirigeants sportifs de la République populaire de Chine dans la création et la direction de nouveaux réseaux transnationaux entre la création de la RPC en 1949 et le début de la Révolution culturelle en 1966 - alors même que les transformations des courants politiques, tant nationaux qu’internationaux, ont affecté leur capacité à le faire. L’article démarre par une brève analyse du nouveau leadership sportif au début des années 1950 avant de retracer l’implication de la Chine dans les réseaux et les compétitions sportives du bloc socialiste ainsi que ses tentatives d’adhésion et de participation aux Jeux olympiques. Le chapitre examine ensuite comment les dirigeants sportifs chinois des années 1960, en particulier Rong Gaotang et Huang Zhong, ont aidé à orchestrer les GANEFO - un mouvement politico-sportif né au lendemain de la scission sino-soviétique, dont l’ambition était notamment d’affirmer le socialisme chinois dans le monde, mais aussi de remettre en question la domination du Comité Internationale Olympique (CIO) sur le sport international. L’article se penche ensuite sur la tournure des événements à la fin de l’année 1966, au début de la Révolution culturelle, lorsque Rong Gaotang, dirigeant de la Commission nationale des sports - impliqué dans la plupart des activités diplomatiques et politiques de haut niveau - fut dénoncé et critiqué pour ses activités passées. Juste avant la tenue du premier (et dernier) GANEFO asiatique en décembre 1966, les dirigeants chinois ont soudainement remplacé Rong à la tête de la délégation chinoise et la Chine s’est rapidement retirée du monde du sport international pendant plusieurs années. Un épilogue note que la réhabilitation de Rong au début de 1979, après la mort de Mao, la fin de la révolution culturelle et la montée de Deng Xiaoping, n’était pas une coïncidence : elle survient au moment où les nouveaux dirigeants chinois décident de revenir au CIO dans le cadre du plan visant à positionner la Chine sur la scène mondiale comme « ouverte », « réformée » et « modernisée ».
Faculty Support and Student Retention
Authors: Shelton Elisabeth N 
Published: December 2019

ABSTRACT
A study was conducted to explore the relationship between nursing students' perceived faculty support and nursing student retention. The 458 associate degree nursing students who participated were categorized according to their persistence- those who had persisted continuously throughout a nursing program, those who had withdrawn voluntarily at some time during a program, and those who had been required to withdraw because of academic failure. Perceived faculty support was measured by scores on the Perceived Faculty Support Scale, an instrument developed by the researcher for this study. A factor analysis of the instrument revealed two factors- psychological support, directed at promoting a sense of competency and self-worth, and functional support, directed at the achievement of tasks to reach the goals of persistence and academic success. Analysis of variance revealed persistence group differences in perceived faculty support. Students who reported greater perceived faculty support were more likely to persist throughout a nursing program than students who withdrew either voluntarily or because of academic failure. To promote retention of nursing students, faculty need to provide the caring atmosphere of a mentoring relationship and direct assistance to facilitate student learning.
Classez ce film que les enfants ne sauraient voir
Authors: Esquerre Arnaud 
Published: December 2019

De quelle manière des personnes chargées, dans le cadre d’une commission d’État, de veiller à la « classification » des films, décident-elles de soustraire à la vue de mineurs des films au motif qu’ils contiennent des images d’actes sexuels et violents ? La plupart du temps, les travaux sur la « censure » cinématographique, s’appuyant sur des archives, ignorent les débats, couverts par le secret, pour n’en garder que l’avis final. Cette étude, qui se fonde sur une observation ethnographique exceptionnelle réalisée en France en 2017-2018, permet de montrer comment des commissaires statuent en utilisant un nombre limité de procédés argumentatifs. Le principal d’entre eux est la comparaison, largement déniée par les acteurs, au motif que chaque œuvre est unique et donc incomparable. Ce dispositif vise à imputer des effets aux images en mettant à distance les intentions du réalisateur du film, et au nom d’un spectateur mineur projeté.
Bâillonnée d’ennui
Authors: Caisne Léonore Le 
Published: December 2019

En 2007, pour comprendre l’absence de signalement d’un inceste commis par un père sur sa fille – et dont six enfants étaient nés –, Léonore Le Caisne réalise un travail d’enquête ethnographique dans le village d’Île-de-France où vivait la famille et dans la cité populaire de la ville voisine où travaillait le père. Prise par l’indifférence et la banalisation des habitants, et le dédain de leurs élus, elle décrit le mal extraordinaire qu’elle eut à conserver de l’intérêt pour cette recherche, qui se délita jour après jour. La configuration sociale particulière à laquelle elle fut confrontée et qui eut ce pouvoir de censure considérable sur son enquête fut justement celle-là même qui empêcha la dénonciation des faits à la justice.
Tiens, lis donc, et sache à quoi t’en tenir
Authors: Aymes Marc 
Published: December 2019

Istanbul, milieu des années 1820. Un navire battant pavillon de Russie et franchissant les Détroits est intercepté par les autorités ottomanes. Les documents de bord sont des faux. Le pavillon, une probable contrefaçon. Les passagers, sûrement des bandits, voire des rebelles. Pourtant, l’ambassadeur de Russie conteste la saisie du navire. Et lorsque les agents du port chargés du halage orchestrent une bruyante parade au crépuscule, la discussion s’envenime. Un rapport du grand vizir adressé au palais du sultan relate toute l’affaire. L’histoire est connue : sous nos yeux s’anime le petit théâtre diplomatique de la « Question d’Orient ». Lire de près ce document permet pourtant de découvrir autre chose : se déroulent en effet sous nos yeux des opérations significatives, elles-mêmes tues et donc quasiment imperceptibles, de réduction au silence.
Comparison of the Performance of Machine Learning Algorithms in Breast Cancer Screening and Detection: A Protocol
Authors: Salod Zakia , Singh Yashik 
Published: December 2019

Background Breast Cancer (BC) is a known global crisis. The World Health Organization reports a global 2.09 million incidences and 627,000 deaths in 2018 relating to BC. The traditional BC screening method in developed countries is mammography, whilst developing countries employ breast self-examination and clinical breast examination. The prominent gold standard for BC detection is triple assessment: i) clinical examination, ii) mammography and/or ultrasonography; and iii) Fine Needle Aspirate Cytology. However, the introduction of cheaper, efficient and noninvasive methods of BC screening and detection would be beneficial. Design and methods We propose the use of eight machine learning algorithms: i) Logistic Regression; ii) Support Vector Machine; iii) K-Nearest Neighbors; iv) Decision Tree; v) Random Forest; vi) Adaptive Boosting; vii) Gradient Boosting; viii) eXtreme Gradient Boosting, and blood test results using BC Coimbra Dataset (BCCD) from University of California Irvine online database to create models for BC prediction. To ensure the models’ robustness, we will employ: i) Stratified k-fold Cross- Validation; ii) Correlation-based Feature Selection (CFS); and iii) parameter tuning. The models will be validated on validation and test sets of BCCD for full features and reduced features. Feature reduction has an impact on algorithm performance. Seven metrics will be used for model evaluation, including accuracy. Expected impact of the study for public health The CFS together with highest performing model(s) can serve to identify important specific blood tests that point towards BC, which may serve as an important BC biomarker. Highest performing model(s) may eventually be used to create an Artificial Intelligence tool to assist clinicians in BC screening and detection.
Exploring Junior Doctor Morale in a Uk Hospital
Authors: Singh Raunak , Kirtley Joanne , Minhas Jatinder S , Lakhani Dilesh , Carr Sue 
Published: December 2019

Background The importance of junior doctor morale is increasingly being recognised. We aimed to identify and explore the factors affecting junior doctor morale in a UK teaching hospital. Methods We carried out an online survey asking junior doctors to rate their morale, rank the top five factors that positively affected morale and offer free-text comments. Results Nine hundred and forty three junior doctors were approached, 402 (42.6%) responded. Overall morale was rated 6 [interquartile range (IQR): 5-8], and how valued 6 (IQR: 4-8), supported 7 (IQR: 6-9) and autonomous 7 (IQR: 6-8) they felt [median ratings using a scale of 0 (low)-10 (high)]. When comparing the four domains of feeling supported, feeling valued, having autonomy and overall morale, respondents felt most supported overall (n = 402, X2 = 85.6, p < 0.0001). Key themes were identified: team working and relationships, feedback, training and education, resources, wellbeing and pastoral support, staffing and workload, senior clinician support, and autonomy. The most common factors positively affecting morale were ‘feeling part of a team’ (66.4%) and ‘being recognised for good practice’ (56.7%). Conclusion We identified a number of diverse themes affecting junior doctor morale. Doctors felt more supported than valued or autonomous, with complex relationships between these domains.
Drops in physical performance during intermittent small-sided and conditioned games in professional soccer players
Authors: Clemente Filipe Manuel , Rabbani Alireza , Ferreira Ruben , Araújo João Pedro 
Published: December 2019

PurposeThe purpose of this study was to identify variations in external load measures between sets (3 × 4’/2’ rest) of small-sided and conditioned game formats (goalkeeper + 5 vs. 5 + goalkeeper with specific tactical demands).MethodsOverall, 10 male professional soccer players (age: 28.1 ± 3.8 years, experience: 7.9 ± 2.9 years, height: 180.3 ± 5.8 cm, weight: 76.5 ± 6.3 kg) from a team competing in the first Portuguese league and in the UEFA Europa league participated in the study. Distance covered, high intensity running (HIR), maximal velocity (MV), high speed running (HSR), very high intensity running (VHIR), and player load (PL) were monitored by using global positioning system units.ResultsVery large decreases in HIR (–62.6, effect size [ES]: –2.04) were found from set 1 to set 3. Large decreases in distance covered (–12.8%, ES: –1.28) and MV (–19.4, ES: –1.95) were observed from the first to the third set. Large decreases in HSR (–80.2%, ES: –1.78), moderate decreases in PL (–7.6%, ES: –0.64), and large decreases in VHIR (–83.0%, ES: –1.88) were reported between the first and the third set.ConclusionsThe results of the present study indicate a significant drop in external load performance when comparing the first and the second sets with the third set.
The ‘Sling Shot’ increased the maximum number of repetitions in the barbell bench press in men with different resistance training experience
Authors: Pedrosa Gustavo Ferreira , Corrêa da Silva Bruno Victor , Freire da Silva Gisele , Rodrigues dos Santos Marcos Henrique , Simôes Marina Gurgel , Alves Ferreira Guilherme Silva , Pedrosa Ricardo Ferreira , Dias da Silva Ronaldo Ângelo , Ribeiro Diniz Rodrigo César 
Published: December 2019

PurposeThe study examined if the elastic device named Sling Shot could increase the maximum number of repetitions (MNR) and diminish the mean repetition duration in men with different resistance training experience while performing the bench press exercise in multiple sets.MethodsOverall, 22 men were grouped depending on their resistance training experience. The most experienced group (MEG; 11 men, 65.45 ± 26.27 months of training experience) and the less experienced group (LEG; 11 men, 3.09 ± 2.07 months of training experience) performed 3 sets at 80% of the 1-repetition maximum test as fast as possible, with 2-min
rest, of the barbell bench press exercise with and without the Sling Shot. Two 3-way ANOVA tests, with α = 0.05, were used to compare the MNR and mean repetition duration in inter- and intra-group comparisons across the sets.ResultsThe Sling Shot increased the MNR in the 2 groups throughout the 3 sets. The increase was 50.5%, 65.4%, and 43.8% in the MEG group and 120%, 68.4%, and 43.3% in the LEG group for the 1<sup>st</sup>, 2<sup>nd</sup>, and 3<sup>rd</sup> sets, respectively. However, there was no difference in the MNR between groups when the Sling Shot was used. Additionally, both groups performed the repetitions with a shorter mean duration with the Sling Shot than without it. No difference was observed between the groups.ConclusionsRegardless of training experience, the Sling Shot constitutes an alternative for increasing the MNR and decreasing the mean repetition duration in multiple sets.
Attention and executive function are predicted by anthropometric indicators, strength, motor performance and aerobic fitness in children aged 6 to 10 years
Authors: Mazzoccante Rafaello Pinheiro , de Luca Corrêa Hugo , Santos de Santana Frederico , Almeida Câmara Matheus , Castro de Sousa Beatriz Raquel , Castro de Sousa Ioranny Raquel , Pimentel Ferreira Aparecido , de Melo Gislane Ferreira 
Published: December 2019

PurposeTo predict attention and executive function in children through anthropometric, physical, and motor indicators.MethodsA cross-sectional study was carried out among 271 children aged 6–10 years. Aerobic fitness was measured by using the Yo-Yo Intermittent Recovery Test Level 1, adapted for children. Motor performance was assessed with the Körperkoordinationstest
für Kinder. Attention and executive function were evaluated by the cancellation test and the trail making test, part A and B.ResultsThe receiver operating characteristic curve pointed the following executive function predictors, with respective cut-off points: body mass index: 0.69 (0.62–0.76), 18.62 kg/m<sup>2</sup>; waist circumference: 0.83 (0.77–0.88), 65.53 cm; sum of skinfolds: 0.69 (0.63–0.75), 32.51 mm; percentage of body fat: 0.67 (0.61–0.74), 27.36%; Yo-Yo Intermittent Recovery Test
Level 1: 0.60 (0.52–0.67), 176 m; motor quotient score: 0.97 (0.95–0.98), 69.50; score of attention: 0.82 (0.77–0.87), 77.75.ConclusionsExecutive function seems to be influenced by the anthropometric and functional components.
Serve efficiency developments at Wimbledon between 2002 and 2015: a longitudinal approach to impact tomorrow’s tennis practice
Authors: Grambow Ralph , O’Shannessy Craig , Born Philipp , Meffert Dominik , Vogt Tobias 
Published: December 2019

PurposeGood serving is crucial to succeed in men’s world class tennis; however, both chronological and skill-related service game development remain to be elucidated. The study aimed to systematically analyse the development of serving behaviour
and serve efficiency in world class men’s tennis over a period of 14 years.MethodsHistorical data collected from all matches at the Wimbledon Championship between 2002 and 2015 (matches: <i>n</i> = 1772; service games: <i>n</i> = 63,838; serves: <i>n</i> = 401,527) were included for analyses. The analyses focused on 2 comparisons, serve efficiency development over time and possible differences within the world class, i.e. 1<sup>st</sup> tournament week results (matches: <i>n</i> = 1563; service games: <i>n</i> = 55,989; serves: <i>n</i> = 352,748) and 2<sup>nd</sup> tournament week results (matches: <sup>n</sup> = 209; service games: <sup>n</sup> = 7849; serves: <sup>n</sup> = 48,779).ResultsAn increase was observed of the percentages for service games won (<i>p</i> < 0.01), aces served (<i>p</i> < 0.01), and 1st and 2nd serve points won (<i>p</i> < 0.01), whereas double faults (<i>p</i> < 0.05) and serve and volley points played (<i>p</i> < 0.01) decreased over time. Direct comparisons of the 1<sup>st</sup> and 2<sup>nd</sup> tournament week show advantages in favour of the 2<sup>nd</sup> tournament week.
Players competing in the 2nd tournament week won higher percentages of service games (<sup>p</sup> < 0.01) and points on the 1<sup>st</sup> (<sup>p</sup> < 0.01) and 2<sup>nd</sup> serve (<i>p</i> < 0.05), and served more aces (<i>p</i> < 0.05) but fewer double faults (<i>p</i> < 0.05).ConclusionsWith a particular impact on the 2<sup>nd</sup> tournament week, the findings indicate increased serve efficiency in men’s world class grass court tennis from 2002 to 2015, which may imply altered practice patterns in tomorrow’s training and coaching.
Impact of different exercise interventions on anxiety and depression in breast cancer patients
Authors: Odynets Tetiana , Briskin Yuriy , Todorova Valentina , Bondarenko Olha 
Published: December 2019

IntroductionThe aim of the study was to examine the impact of different exercise interventions on anxiety and depression in breast cancer patients through 1-year outpatient rehabilitation.MethodsOverall, 138 breast cancer patients were assessed for eligibility. After excluding 14 women, 124 patients were randomly allocated to water exercise interventions (group A, <i>n</i> = 50), Pilates exercise interventions (group B, <i>n</i> = 44), and yoga exercise interventions (group C, <i>n</i> = 30). Finally, 115 patients completed relevant interventions and were analysed. The participants reported anxiety and depression using the Hospital Anxiety and Depression Scale at baseline and after 6 and 12 months of the interventions.ResultsAfter 12 months, a decrease in anxiety and depression was observed by 5.64 (<i>p</i> < 0.001) and 4.09 (<i>p</i> < 0.001) points in group A, by 5.75 (<i>p</i> < 0.001) and 4.60 (<i>p</i> < 0.001) points in group B, and by 4.07 (<i>p</i> < 0.001) and 3.14 (<i>p</i> < 0.001) points in group C, respectively. Group A showed significantly better results than group C in anxiety (by 1.54 points; p < 0.01) and depression (by 1.40 points; <i>p</i> < 0.05). Group B obtained significantly better results than group C in anxiety (by 1.61 points; <i>p</i> < 0.01) and depression (by 1.81 points; <i>p</i> < 0.01).ConclusionsPractising a water exercise program resulted in a better decrease of anxiety and depression levels compared with Pilates and yoga interventions.
Regional sources of airborne ultrafine particle number and mass concentrations in California
Authors: Yu Xin , Venecek Melissa , Kumar Anikender , Hu Jianlin , Tanrikulu Saffet , Soon Su-Tzai , Tran Cuong , Fairley David , Kleeman Michael J. 
Published: December 2019

Abstract. Regional concentrations and source contributions are calculated for airborne
particle number concentration (Nx) and ultrafine particle mass
concentration (PM0.1) in the San Francisco Bay Area (SFBA) and the
South Coast Air Basin (SoCAB) surrounding Los Angeles with 4 km spatial
resolution and daily time resolution for selected months in the years 2012,
2015, and 2016. Performance statistics for daily predictions of N10
concentrations meet the goals typically used for modeling of PM2.5
(mean fractional bias
(MFB) < ±0.5 and mean fractional error
(MFE) < 0.75). The relative ranking and
concentration range of source contributions to PM0.1 predicted by
regional calculations agree with results from receptor-based studies that
use molecular markers for source apportionment at four locations in
California. Different sources dominated regional concentrations of N10
and PM0.1 because of the different emitted particle size distributions
and different choices for heating fuels. Nucleation (24 %–57 %) made the
largest single contribution to N10 concentrations at the 10 regional
monitoring locations, followed by natural gas combustion (28 %–45 %),
aircraft (2 %–10 %), mobile sources (1 %–5 %), food cooking (1 %–2 %), and
wood smoke (0 %–1 %). In contrast, natural gas combustion (22 %–52 %) was
the largest source of PM0.1 followed by mobile sources (15 %–42 %),
food cooking (4 %–14 %), wood combustion (1 %–12 %), and aircraft
(2 %–6 %). The study region encompassed in this project is home to more than
25 million residents, which should provide sufficient power for future
epidemiological studies on the health effects of airborne ultrafine
particles. All of the PM0.1 and N10 outdoor exposure fields
produced in the current study are available free of charge at http://webwolf.engr.ucdavis.edu/data/soa_v3/hourly_avg/ (last access: 20 November 2019).