bluuebunny/crossref_metadata_2025_split huggingface dataset:
The MUSEHubbleUltra Deep Field Survey
Authors: Kusakabe Haruka , Blaizot Jérémy , Garel Thibault , Verhamme Anne , Bacon Roland , Richard Johan , Hashimoto Takuya , Inami Hanae , Conseil Simon , Guiderdoni Bruno , Drake Alyssa B. , Christian Herenz Edmund , Schaye Joop , Oesch Pascal , Matthee Jorryt , Anna Marino Raffaella , Borello Schmidt Kasper , Pelló Roser , Maseda Michael , Leclercq Floriane , Kerutt Josephine , Mahler Guillaume 
Published: April 2020

Context.The Lyαemitter (LAE) fraction,XLAE, is a potentially powerful probe of the evolution of the intergalactic neutral hydrogen gas fraction. However, uncertainties in the measurement ofXLAEare still under debate.Aims.Thanks to deep data obtained with the integral field spectrograph Multi Unit Spectroscopic Explorer (MUSE), we can measure the evolution of the LAE fraction homogeneously over a wide redshift range ofz ≈ 3–6 for UV-faint galaxies (down to UV magnitudes ofM1500 ≈ −17.75). This is a significantly fainter range than in former studies (M1500 ≤ −18.75) and it allows us to probe the bulk of the population of high-redshift star-forming galaxies.Methods.We constructed a UV-complete photometric-redshift sample following UV luminosity functions and measured the Lyαemission with MUSE using the latest (second) data release from the MUSEHubbleUltra Deep Field Survey.Results.We derived the redshift evolution ofXLAEforM1500 ∈ [ − 21.75; −17.75] for the first time with a equivalent width rangeEW(Lyα) ≥ 65 Å and found low values ofXLAE ≲ 30% atz ≲ 6. The best-fit linear relation isXLAE= 0.07+0.06−0.03z− 0.22+0.12−0.24. ForM1500 ∈ [ − 20.25; −18.75] andEW(Lyα) ≥ 25 Å, ourXLAEvalues are consistent with those in the literature within 1σatz ≲ 5, but our median values are systematically lower than reported values over the whole redshift range. In addition, we do not find a significant dependence ofXLAEonM1500forEW(Lyα) ≥ 50 Å atz ≈ 3–4, in contrast with previous work. The differences inXLAEmainly arise from selection biases for Lyman Break Galaxies (LBGs) in the literature: UV-faint LBGs are more easily selected if they have strong Lyαemission, henceXLAEis biased towards higher values when those samples are used.Conclusions.Our results suggest either a lower increase ofXLAEtowardsz ≈ 6 than previously suggested, or even a turnover ofXLAEatz ≈ 5.5, which may be the signature of a late or patchy reionization process. We compared our results with predictions from a cosmological galaxy evolution model. We find that a model with a bursty star formation (SF) can reproduce our observed LAE fractions much better than models where SF is a smooth function of time.
Mt. Wendelstein imaging of comet 41P/Tuttle-Giacobini-Kresak during the 2017 perihelion arc
Authors: Boehnhardt Hermann , Riffeser Arno , Ries Christoph , Schmidt Michael , Hopp Ulrich 
Published: April 2020

Context.In April 2017 comet 41P/Tuttle-Giacobini-Kresak (41P) passed perihelion close to Earth.Aims.We present observations of the comet and aim to use these to characterize its dust environment in the coma and of physical properties of the nucleus.Methods.41P was imaged in the visible at the Mt. Wendelstein observatory over 45 nights between 2017 March 11 and 2017 July 17. Photometry of the coma provides information on the dust activity of the comet. Nucleus dimensions are determined by comparing radial profiles of observed images with those from models of the brightness distribution in the near-nucleus coma. Coma and tail structures in the images are enhanced using adaptive Laplace filtering and image normalization techniques. The geometry of the coma structures found are compared to results from dust models of the comet in order to obtain information on the nucleus rotation axis and the location of active regions on the nucleus.Results.Analyzing the evolution of the dust activity of the comet versus solar distance gives different results depending on the assumed phase angle corrections for the dust. Contamination from light emissions of the coma gas modified the colors in the coma and the slopes of the radial profiles. The light distribution in the very inner coma indicates some dust fragmentation close to the nucleus. The appearance of a prominent coma fan during the time period from March to May 2017 constrains the rotation axis of the nucleus (52 deg obliquity, 50 deg rotation angle of the perihelion meridian). This fan is produced by an extended region beyond about 50 deg latitude on the nucleus. Two narrow regions at low northern to equatorial latitudes were responsible for the time-variable occurrence of linear dust jets in the coma. An outburst of about 0.6 mag on 2017 May 11 generated various dust structures in the coma. The outburst originated from a region extending over a latitude range from +30 deg to −5 deg and released about 3000 tons of dust into the coma. The brightness of the nucleus indicates an equivalent radius of about 600 m and a minimum axis ratio larger than two.
A Clinical Study of Noninvasive Assessment of Lung Lesions in Patients with Coronavirus Disease-19 (COVID-19) by Bedside Ultrasound
Authors: Lu Wuzhu , Zhang Shushan , Chen Binghui , Chen Jiaxin , Xian Jianzhong , Lin Yuhong , Shan Hong , Su Zhong Zhen 
Published: April 2020

Abstract
Purpose This study was conducted to explore the clinical value of noninvasive assessment of bedside ultrasound in the diagnosis of lung lesions of Coronavirus Disease-19.
Methods In this retrospective study, 30 patients with Coronavirus Disease-19 admitted to our hospital from January 18 to February 5, 2020, were selected as the research subjects. All cases were examined by lung ultrasound and CT. Lung lesions were reviewed by blinded observers, with imaging scores being used to analyze the ultrasound findings of lung lesions in patients with Coronavirus Disease-19 and with chest CT being used as the reference standard. The clinical value of ultrasound in the noninvasive assessment of lung lesions was evaluated.
Results Lung ultrasound signs in patients with Coronavirus Disease-19 were mainly manifested as interstitial pulmonary edema (90.0 %, 27/30) and pulmonary consolidations (20.0 %, 6/30). The lung lesions were mainly distributed in the subpleural and peripheral pulmonary zones. The lower lobe and the dorsal region had a greater tendency to be involved. There was moderate agreement (Kappa = 0.529) between the noninvasive assessment of bedside ultrasound for lung lesions in patients with Coronavirus Disease-19 and CT. The ultrasound scores to evaluate mild, moderate and severe lung lesions exhibited sensitivity of 68.8 % (11/16), 77.8 % (7/9), 100.0 % (2/2), specificity of 85.7 % (12/14), 76.2 % (16/21), 92.9 % (26/28), and diagnostic accuracy of 76.7 % (23/30), 76.7 % (23/30), 93.3 % (28/30), respectively. The follow-up dynamic ultrasound examination showed that the condition of all patients worsened gradually, with the ultrasound scores of lung lesions increasing to varying degrees.
Conclusion Though the diagnostic efficacy of bedside ultrasound is relatively low for mild to moderate patients, it is high for severe patients. Bedside ultrasound has important clinical significance for noninvasive assessment and dynamic observation of lung lesions in patients with Coronavirus Disease-19, which is worth further consideration.
A Practical 3D-Printed Model for Training of Endoscopic and Exoscopic Intracerebral Hematoma Surgery with a Tubular Retractor
Authors: Zhu Junhao , Wen Guodao , Tang Chao , Zhong Chunyu , Yang Jin , Ma Chiyuan 
Published: April 2020

Abstract
Objective To present a three-dimensional (3D)-printed model that simulates endoscopic and exoscopic intracerebral hematoma (ICH) surgery with a tubular retractor.
Methods We used 3D printing technology to develop the model that consisted of the skull frame and a replaceable inserted module. Edible gelatin and animal blood were placed into the module to mimic brain tissue and the hematoma. Twenty neurosurgeons were recruited to participate in our training program that required the use of an endoscope and an exoscope to aspirate the hematoma with a tubular retractor. Five postgraduates were asked to complete the entire training with the endoscope five times. Questionnaires were distributed for feedback after the training program.
Results The more experienced surgeons obviously performed better than the rather inexperienced surgeons, verifying that our model could reflect the ability of the trainees. As the training progressed, the scores of the postgraduates increased, and the average score of the fifth training was obviously higher than the first score. No significant differences were observed in the trainees' performance with the endoscope and the exoscope. The feedback questionnaires showed the average score for value of the simulator as a training tool was a 3.65 (on a 4-point scale). Our model received better comments regarding the bone texture (mean: 3.20), the brain tissue texture (mean: 3.20), and the experience in aspirating the hematoma (mean: 3.10). The surgical position (mean: 2.95), surgical approach (mean: 2.90), and simulated brain tissue (mean: 2.85) should be improved.
Conclusion Our model was practical for endoscopic and exoscopic ICH surgery training. The results of our program showed that prior surgical experience benefited the mastery of both the endoscopic and the exoscopic ICH surgery in the 3D-printed model. Our model could make mastering basic skills more efficient.
Retraction: Complementary Cast Immobilization Is Not Necessary after Intramedullary Fixation of Unstable Tibial Shaft Fractures in Pediatric Patients
Authors: Stenroos Antti , Laihinen Timo , Lybäck Carl , Puhakka Jani , Kosola Jussi 
Published: April 2020

RetractionThe above article published in European Journal of Pediatric Surgery on April 15, 2020 (DOI: 10.1055/s-0040-1703010) has been retracted as per authors' request.
The Carit Maneuver: A Novel Approach for the Relief of Shoulder Dystocia—A Case Series
Authors: Gei Alfredo F , Mastache Jorge Suarez , Pacheco Luis D. , Villanueva Mariana 
Published: April 2020

Abstract
Objective The main purpose of this article is to describe the technique and mechanism of action of a novel intervention for the relief of shoulder dystocia we are labeling Carit maneuver.
Methods We report a cohort study of eight cases of shoulder dystocia not relieved by the combination of McRobert's maneuver and suprapubic pressure treated with the Carit maneuver. This intervention involves the use of the fetal head and neck as the grasping point of the fetus to exert a ventral rotation of the fetal trunk, reduce the bi-acromial diameter, and deliver the posterior shoulder by passive displacement.In all these cases, the direction of the original head restitution, direction of exerted rotation, and side and location of delivery of the first shoulder were recorded. Maternal and neonatal outcomes were reviewed and reported.
Results In all cases, the Carit rotational maneuver resulted in the delivery of the posterior shoulder in the transverse (4), oblique anterior (2), or direct anterior (2) diameters. No instances of neonatal depression or fetal acidemia were noted in this cohort.
Conclusion The Carit maneuver is an original and successful intervention in the management of shoulder dystocia unresponsive to McRobert's maneuver and suprapubic pressure.
Ethical Cultures in Perinatal Care: Do They Exist? Correlation of Provider Attitudes with Periviability Practices at Six Centers
Authors: Lawrence Christin , Laventhal Naomi , Fritz Katie A. , Carlos Christine , Famuyide Mobolaji , Tonismae Tiffany , Hayslett Drew , Coleman Tasha , Jain Meenu , Edmonds Brownsyne Tucker , Leuthner Steven , Andrews Bree , Feltman Dalia M. 
Published: April 2020

Abstract
Objective This study aimed to compare attitudes of providers regarding perinatal management and outcomes for periviable newborns of caregivers at centers with higher resuscitation (HR) and lower resuscitation (LR) rates in the delivery room.
Study Design All obstetric and neonatal clinical providers at six U.S. sites were invited to complete an anonymous online survey. Survey responses were compared with clinical data collected from a previous retrospective study comparing centers' rates of planned resuscitation. Responses were analyzed by multivariable logistic and linear regression to assess how HR versus LR center respondents differed in management preferences and outcome predictions.
Results Paradoxically, HR versus LR respondents, when adjusting for other variables, were less likely to respond that interventions such as antenatal steroids (odds ratio: 0.61, 95% confidence interval [CI]: 0.42–0.88, p < 0.009) and resuscitation (OR: 0.59, 95% CI: 0.44–0.78, p < 0.001) should be given at 22 weeks. HR versus LR respondents also reported lower likelihood of survival and acceptable quality of life (OR: 0.7, 95% CI: 0.53–0.93, p = 0.012) at 23 weeks.
Conclusion Despite higher rates of planned resuscitation at 22 and 23 weeks, steroid usage and survival rates did not differ between HR and LR sites. In this subsequent survey, respondents from HR centers had a less favorable outlook on interventions for these newborns than those at LR centers, suggesting that instead of driving practices, attitudes may be more closely associated with experiences of clinical outcomes.
Reflex Epilepsy with Hot Water: Clinical and EEG Findings, Treatment, and Prognosis in Childhood
Authors: Hanci Fatma , Türay Sevim , Balci Paşa , Kabakuş Nimet 
Published: April 2020

AbstractHot water epilepsy (HWE) is a subtype of reflex epilepsy in which seizures are triggered by the head being immersed in hot water. Hot water or bathing epilepsy is the type of reflex epilepsy most frequently encountered in our clinic. We describe our patients with HWE and also discuss the clinical features, therapeutic approaches, and prognosis. Eleven patients (10 boys, 1 girl), aged 12 months to 13 years, admitted to the pediatric neurology clinic between January 2018 and August 2019, and diagnosed with HWE or bathing epilepsy based on International League Against Epilepsy (ILAE)-2017, were followed up prospectively for ∼18 months. Patients' clinical and electroencephalography (EEG) findings and treatment details were noted. All 11 patients' seizures were triggered by hot water. Age at first seizure was between 2 months and 12 years. Seizure types were generalized motor seizures, absence, and atonic. EEG was normal in two patients, but nine patients had epileptiform discharges. Magnetic resonance imaging of the brain was performed and reported as normal (except in one case). Histories of prematurity were present in two patients, unprovoked seizures in one, and low birth weight and depressed birth in the other. Patients with HWE have normal neuromuscular development and neurological examination results, together with prophylaxis or seizure control with a single antiepileptic drug, suggesting that it is a self-limited reflex epilepsy.
Early Psychomotor Advantage in Moderately Preterm Twins Born between 32 and 33 Weeks
Authors: Turriziani Laura , Cafeo Anna , Pino Gaetana , Vetrano Noemi , Alibrandi Angela , Di Rosa Gabriella 
Published: April 2020

AbstractTwin birth may represent a challenging event often associated with prematurity. We previously reported on developmental trajectories in preterm children categorized by gestational age. Based on the same study population, in this study we investigated the influence of gemellarity on the neurodevelopment of 73 twins (26.4%) and 207 singletons (73.6%), categorized into three groups according to their gestational age. The age of the achievement of developmental milestones between the three groups and the influence of preperinatal events on neurodevelopment were analyzed. An early neurodevelopmental advantage was detected in preterm twins born between 32 and 33 weeks. Environmental and nurturing factors may explain these findings.
MiR-181a-5p is involved in the cardiomyocytes apoptosis induced by hypoxia–reoxygenation through regulating SIRT1
Authors: Qi Mingxu , He Li , Ma Xiaofeng , Li Zili 
Published: April 2020

AbstractMiR-181a-5p’s mechanism in hypoxia–reoxygenation (H/R)-induced cardiomyocytes apoptosis has not been clarified. This study verified that SIRT1 was the target of miR-181a-5p. MiR-181a-5p expression was up-regulated or down-regulated in H/R-induced cardiomyocytes, and SIRT1 was transfected into cells alone or in combination with miR-181a-5p. Cell viability, apoptosis, levels of released lactate dehydrogenase (LDH), malondialdehyde (MDA), and superoxide dismutase (SOD), as well as the Bcl-2, Bax, and Caspase 3 levels in treated cells were tested. On the one hand, down-regulated miR-181a-5p promoted cell viability, reduced released LDH and MDA, and increased SOD level in H/R-induced cardiomyocytes. On the other hand, miR-181a-5p inhibited apoptosis and elevated Bcl-2 expression while decreasing the expressions of Bax and Caspase 3 in treated cells, but the effects of miR-181a-5p could be rescued by SIRT1. In conclusion, miR-181a-5p involved in H/R-induced cardiomyocytes apoptosis through regulating SIRT1, which might become a novel direction for related diseases.
Steady states of a driven dissipative dipolar XXZ chain
Authors: Parmee C D , Cooper N R 
Published: April 2020

Abstract
We study theoretically a driven dissipative one-dimensional XXZ spin-1/2 chain with dipole coupling and a tunable strength of the Ising and XY interaction. Within a mean-field approximation, we find a rich phase diagram with uniform, spin density wave, antiferromagnetic and oscillatory phases, as well as regions of phase bistability. We study the phase diagram of small quantum systems using exact diagonalisation, and compare the results to the mean-field theory. We find that while expectation values only capture the uniform phases of the mean-field theory, fluctuations about these expectation values give signatures of spatially non-uniform phases and bistabilities. We find these signatures for all ratios of the Ising to XY interaction, showing that they appear to be general features of spin-1/2 systems.
Unbalanced Data Clustering with K-Means and Euclidean Distance Algorithm Approach Case Study Population and Refugee Data
Authors: Faizah NM , Surohman  , Fabrianto L , Hendra  , Prasetyo R 
Published: April 2020

Abstract
There is a lot of data that does not have a pattern and unbalanced that is difficult to classify, such as the total population of each country in the world is very varied especially when compared with the number of refugees from each of these countries, China and India numbered more than 2 billion people but the number of refugees is only 0, 01%, while Syria around 70% of the 18 million more residents are refugees. By using the K-Means algorithm, we can group countries that have similar characteristics of population and number of refugees, the average percentage of refugees to the population in each cluster is the character of the cluster. The methodology used in this study are: measures the distance of the data using the Euclidean distance formula, runs the K-Means algorithm, calculate the percentage value of each cluster and find conclusions from the characteristics of the clusters formed. We found how machine learning made a pattern of data without political and social issues, the result is K-Means describing machine learning can grouped every country in cluster that make sense.
Stability of Lorenz System at the Second Equilibria Point based on Gardano’s Method
Authors: AL-Azzawi S. F. , Mujiarto  , Patria L. , Sambas A. , Sanjaya W. S. M. 
Published: April 2020

Abstract
In this paper, stability conditions of the Lorenz system at the second equilibrium point are investigated by applying Gardano’s method where the system has three equilibria points. Most of the previous work focused their studies at the original point. A few studies demonstrated stability of dynamical systems at another equilibria points by use of conventional techniques. However, it is often unclear and based on numerical methods. This reason, motivate us to establish the stability conditions of the Lorenz system at a point which different from the origin point and compare between them. Finally, An illustrative example shows the effectiveness and feasibility of this method.
Path Analysis for Implementation Analysis Of Human Resources Information System On Human Resources Planning
Authors: Nurasiah  
Published: April 2020

Abstract
At present, the quality of HR decisions is highly dependent on the quality of information held and obtained. HR information should be made available to HR managers and other line managers in the company or agency so that it will facilitate decision making. In the current era of technological development, information systems are developing rapidly in support of management activities. In other words, HR information systems can get the information needed or the choices of many people who are more related to new HR planning activities. The purpose of this study is to measure the contribution of the implementation of human resource information systems to the effectiveness of human resource planning. In this paper, the analysis uses the path analysis model. The results of the analysis of the implementation of the HR information system can explain the benefits of the HR information system in the organization’s HR planning decision making.
Electronic Circuit Design of a Novel Chaotic System with Apple-Shaped Curve Equilibrium and Multiple Coexisting Attractors
Authors: Sambas A. , Sukono  , Zhang S. , Vaidyanathan S. , Hidayat Y. , Mujiarto  
Published: April 2020

Abstract
A new 3-D chaotic system with an apple-shaped equilibrium curve is proposed in this research work. There is great interest in the literature in discovering chaotic systems with closed curves of equilibrium points. In this work, we report a new 3-D chaotic system with an appleshaped closed curve of equilibrium points. We perform a detailed dynamic analysis of the chaotic system with bifurcation diagram, Lyapunov exponents, phase portraits, etc. We show that the new chaotic system is multi-stable with coexisting chaotic attractors. As a circuit application, we design MultiSIM electronic circuit for the new chaotic system. The MultiSIM outputs show good agreement with the MATLAB outputs for the new chaotic system.
A New 4-D Multi-Stable Hyperchaotic Two-Scroll System with No-Equilibrium and its Hyperchaos Synchronization
Authors: Vaidyanathan S. , Lien C-H , Fuadi W. , Mujiarto  , Mamat M. , Subiyanto  
Published: April 2020

Abstract
A new 4-D multi-stable hyperchaotic two-scroll system with four quadratic nonlinearities is proposed in this paper. The dynamical properties of the new hyperchaotic system are described in terms of finding equilibrium points, phase portraits, Lyapunov exponents, Kaplan-Yorke dimension, dissipativity, etc. We discover that the new hyperchaotic system has no equilibrium point and hence it exhibits a hidden attractor. Furthermore, we show that the new hyperchaos system has multi-stability by the coexistence of hyperchaotic attractors for different values of initial conditions. As a control application, we use integral sliding mode control (ISMC) to derive new results for the hyperchaos synchronization of the new 4-D multi-stable hyperchaotic two-scroll system with hidden attractor.