bluuebunny/crossref_metadata_2025_split huggingface dataset:
Le Giannimondo
Authors: Migliore Brigida 
Published: May 2021

Dans cette époque actuelle de pandémie de COVID-19, la musique et les musiciens ont étéobligés à se réinventer pour continuer la pratique artistique, étant donné que les activitésculturelles ont été interrompues ou reportées. L’espace de diffusion le plus utilisé a été celuioffert par les nouvelles technologies, en particulier les réseaux sociaux, que les musiciens ontutilisé pour l’organisation de concerts et performances, en live ou enregistrés, afin de ne pasarrêter le flux de la création et de l’inventive musicale. À l’intérieur de ce triste contexte de nosjours, dans une ville du Sud de l’Italie, nous avons pu suivre les activités du Giannimondo. Ils’agit d’un projet crée par un jeune salernitain, Gianni Fiorito, qui a inventé un espace culturelvirtuel sous-forme d’émission en livestreaming Instagram et Facebook. Les épisodes ont eucomme objectif de garder les gens à la maison depuis mars (début des restrictions duGouvernement italien), essayant de proposer des contenus culturels intéressants. Enparticulier, une place de relief a été consacrée à la musique par l’invitation d’artistes afin de lesfaire exprimer à travers des entretiens et par des petites performances. L’événement le plusimportant organisé à l’intérieur du Giannimondo a été le concert du 1er Mai (2020), qui a vu huitheures de performances par trente jeunes artistes, en livestreaming. D’autres activités sontprévues pour accompagner les jeunes et les adultes dans le lent retour à la normalité.Throughout the COVID-19 pandemic, musicians—and the music industry—have been forced toreinvent themselves in order to continue the production and dissemination of art, as all culturalactivities have been interrupted or postponed. To this end, the most popular spaces in whichartists have broadcast their work have been made possible by new technologies. Socialnetworks, in particular—which musicians have used to organize concerts and performances,both live and recorded—have allowed these artists to continue the flow of creativity and musicalinventiveness. Within the context of the challenging first months of the pandemic, in a town insouthern Italy, myself and others were able to find some respite by following the activities ofGiannimondo. Created by a young Salernitan, Gianni Fiorito, this was a virtual cultural space inthe form of a recurring Instagram and Facebook livestream show. The episodes, which offeredinteresting cultural content, were produced to encourage people to stay at home after Italiangovernment restrictions began in March 2020. This series became a prominent, online spacededicated to showcasing artists expressing themselves through interviews and shortperformances. The most important event as part of Giannimondo was its May 1 concert, whichsaw eight hours of livestreamed performances by thirty young artists. This series is alsocommitted to planning other activities to support both young people and adults in the slow returnto post-pandemic normalcy.
Early Versus Late Use of Dexamethasone in Critically Ill Patients With COVID-19: A Multicenter, Prospective Cohort Study
Authors: Sulaiman Khalid Al , Alhubaishi Alaa , Juhani Ohoud Al , Eljaaly Khalid , Harbi Omar Al , Badreldin Hisham A. , Yousif Ghada Al , Vishwakarma Ramesh , Albelwi Shorouq , Almutairi Rahaf , Almousa Maha , Alghamdi Razan , Alharbi Aisha , Algarni Rahmah , Akhani Nada , Atassi Abdulaleam Al , Ghamdi Ghassan Al 
Published: May 2021

Abstract
Background: Corticosteroids, especially dexamethasone, showed a survival benefit in critically ill COVID 19 patients. However, it is unclear whether the timing of dexamethasone initiation is associated with positive outcomes. The aim of this study is to evaluate the timing of dexamethasone initiation and 30-day mortality in critically ill patients with COVID19.Methods: A multicenter, non-interventional, prospective study for all adult COVID19 patients admitted to intensive care units (ICUs) received systemic dexamethasone between March 01 to December 31, 2020. Patients were divided into two groups based on the timing for dexamethasone use (early vs. late). Early use is defined as new initiation of dexamethasone within three days of ICU admission or initiation prior to ICU admission (e.g., wards) and continuation during ICU stay. Propensity score matching was used after adjusting for patient’s age, gender, and mechanical ventilation needs within 24 hours of ICU admission. We considered a P value of < 0.05 statistically significant.Results: A total of 475 patients were included in the study; dexamethasone was used early within three days of ICU admission in 435 patients. Among 156 patients matched using propensity score, 39 had received dexamethasone after three days of ICU admission (Ratio 1:4). 30-day mortality (OR [95%CI]: 1.86[0.87, 3.95], p-value=0.11) and in-hospital mortality (OR [95%CI]: 1.47[0.71, 3.06], p-value=0.29) were not statistically significant between the two groups. Early use of dexamethasone was associated with shorter MV duration (beta coefficient [95% CI]: -0.67 [-1.31, -0.04], p-value=0.04), ICU length of stay (LOS) (beta coefficient [95%CI]: -0.66 [-0.961, -0.36], p-value=0.001), and hospital LOS (beta coefficient [95%CI]: -0.65 [-0.92, -0.39], p-value=0.001).Conclusion: Early use of dexamethasone within three days of ICU admission in COVID-19 critically ill patients was associated with shorter MV duration, ICU and hospital LOS.
Can environmental regulation solve China's employment dilemma: Empirical analysis based on scale and structure effects
Authors: Li Mengjie , Du Weijian 
Published: May 2021

Abstract
Whether the environmental regulation policy can achieve the double dividend of pollution control and employment promotion is a problem worthy of further discussion. This paper studies the effect of environmental regulation on employment scale and employment structure. Based on the matching data, the empirical results show that environmental regulations enhance the employment scale of enterprise. From the perspective of employment structure, labor redistribution, which is caused by environmental regulation, is mainly reflected in the employment creation and employment destruction effects, which lead to the optimization of the employment structure. Further research shows that environmental regulations expand employment scale but have different impacts on the employment structure in the developed and undeveloped regions of China. In addition, internal and external factors, such as enterprise innovation and institutional environment, may affect the relationship of environmental regulation and employment of enterprise. This paper provides theoretical support for the promotion of the construction of ecological civilizations and the solving of the employment dilemma.
Periodic Response Analysis of A Jeffcott-Rotor System By The Integral Equation Method
Authors: Zhang Wenxin , Chen Yueli 
Published: May 2021

Abstract
In this paper, two modified nonlinear saturation-based controllers and negative velocity feedback controllers are integrated to suppress the horizontal and vertical vibrations of a horizontally supported Jeffcott-rotor system at primary resonance excitation and the presence of 1:1 and 1:2 internal resonances. The second order approximations and the amplitude equations are obtained by applying the integral equation method to analyze the nonlinear behavior of this model. The stability of the steady-state solutions is ascertained based on the Floquet theory. The necessity of adding a negative velocity feedback to the main system is stated. The effects of different control parameters on the frequency-response curves and the force-response curves are investigated. Time histories of the whole system are included to show the response with and without control. It is shown that the saturation-based controller can reduce the system response to almost zero and the negative velocity feedback can suppress the transient vibrations and prevent the main system having the large amplitude vibration. The analyses show that analytical solutions are in excellent agreement with the numerical simulations. Finally, a comparison with previously published works is included.
Model Predictive Control for Electrodynamic Tether Geometric Profile in Orbital Maneuvering with Finite Element State Estimator
Authors: Li Gangqiang , Zhu Zheng H. 
Published: May 2021

Abstract
This paper studies the control of geometric profile of a librating electrodynamic tether by model predictive control using the induced electric current in tether only. First, a high-fidelity multiphysics model of an electrodynamic tether system is built based on the nodal position finite element method and the orbital-motion-limited theory. Second, a state estimator is proposed to estimate the geometric profile of a librating electrodynamic tether, where only the positions and velocities at the tether ends are measurable. The non-measurable geometric profile of tether between two ends is estimated by the high-fidelity multiphysics model with the input of the measurement at tether ends in the spatial domain. To avoid the singularity or ambiguity in the estimation, the geometric profile of tether is then propagated in the time domain by the extended Kalman filter. Third, the problem of controlling the geometric profile of a librating electrodynamic tether is converted into a trajectory tracking problem of the underactuated electrodynamic tether system, where the induced electric current in the tether is the only control input. The control input is optimized by the model predictive control method subject to the output and input control constraints. The numerical simulation results show that the proposed approach is capable of effectively controlling the shape of the liberating electrodynamic tether to the reference trajectory.
Evidence-Based Practice Utilization and Associated Factors Among Nurses in Public Hospitals, Addis Ababa, Ethiopia
Authors: Assefa Kidist , Shewangizaw Zewdu 
Published: May 2021

Abstract
Background: To make an evidence-based practice, clinical research and updates matters, thus the result of this study will help nurses to exercise evidence-based practice for the utmost care to their patients. With regards all the various programs and strategies to promote the use of clinical research and updates, there is still a gap in practicing. A number of studies from various countries have reported that nurses’ experience of evidence-based practice is low. In Ethiopia, there is a gap on evidence-based nursing practice. Objective: To assess evidence-based practice utilization and associated factors among nurses at public hospital Addis Ababa, Ethiopia, 2020. Methods: A mixed-method approach (concurrent triangulation) was employed from November to December, 2020 among 422 study participant. Semi-structured and pretested self-administered questioners were used to collect data. Then the collected data were cleaned, coded, and entered into Epi data version 4.6 and exported to SPSS version 22 for analysis. The result was displayed through simple and multiple linear regressions. The total scores were expressed using regression coefficient (β), 95% Confidence interval. For the qualitative study, in-depth interviews were conducted with a purposive sampling method. The data were entered and analyzed using open code software version 4.0.Results: Of 422 distributed questionnaires, all were completed with 100% response rate. EBP exercised by the participant to the degree of 28.4%, 48.8% and 8.8% respectively to low, medium and high level. Those with a good knowledge about EBP, increases their implementation by 0.338. Educational status of nurses was significantly associated with evidence-based practice utilization (β=0.647, P=0.02).Having a managerial support will increase the implementation by 0.835. Conclusion: Small number of participants had implemented EBP to a high level. Evidence-based nursing practice was positively associated with knowledge, attitude, and educational status, lack of managers’ support and availability of information resources. Intervention programs on awareness creation, training, resource provision, and curriculum issues to improve implementation of evidence based nursing practice by stakeholders are recommended.
Prognostic Significance of Targeted Magnetic Resonance Coronary Angiography to Predict Cardiac Events in Patients with Known or Suspected Coronary Artery Disease
Authors: Kaolawanich Yodying , Thongsongsang Rawiwan , Boonyasirinant Thananya 
Published: May 2021

Abstract
Background Magnetic resonance coronary angiography (MRCA) is one of the most promising tools for noninvasive imaging of coronary arteries without radiation exposure or contrast media administration. However, knowledge about the prognostic value of MRCA is limited.Methods The study included 389 patients with known or suspected coronary artery disease (CAD) who underwent clinical cardiac magnetic resonance (CMR) including MRCA imaging. The presence of significant coronary artery stenosis was defined by visual estimation of ≥50% diameter reduction using targeted MRCA images. Patients were followed up for hard cardiac events (cardiac death or non-fatal myocardial infarction) and major adverse cardiac events (MACE) that also included hospitalization for heart failure and late revascularization (>180 days after the CMR study).Results Average age was 68±11 years and 48% were male. One hundred and thirty-nine patients had significant stenosis on MRCA. During a median follow-up period of 53.9 months, 23 hard cardiac events and 52 MACE occurred. Patients with significant coronary artery stenosis had higher rates of hard cardiac events (annual event rate, 3.12% versus 0.56%; HR 5.52; 95% CI 2.17-14.01; p<0.001) and MACE (annual event rate, 6.44% vs. 1.83%; HR 3.49; 95% CI 1.98-6.14; p<0.001) than those without significant stenosis. Multivariate analyses identified significant coronary artery stenosis as an independent predictor of hard cardiac events (HR 3.35; 95% CI 1.13-9.96; p=0.03) and MACE (HR 2.00; 95% CI 1.02-3.90; p=0.04). MRCA presented an incremental prognostic value over clinical factors, left ventricular ejection fraction, and myocardial scarring to predict hard cardiac events (p=0.03).Conclusion Targeted MRCA demonstrated independent and incremental prognostic values to predict future cardiac events in patients with known or suspected CAD.
Structure and Ferromagnetism in Carbon Nanofibers from PAN/PVP
Authors: Teeta Suminya - , Sonsupap Somchai - , Wanchanthuek Ratchaneekorn - , Maensiri Santi - , Chanlek Narong - , Wongsaprom Kwanruthai - 
Published: May 2021

Abstract
We report on the room-temperature ferromagnetism in carbon nanofibers. Carbon nanofibers were fabricated using sequential electrospinning of polyacrylonitrile (PAN) and polyvinylpyrrolidone (PVP). The morphologies, crystal structures, chemical bonding states and magnetic properties were characterized for three different polyacrylonitrile (PAN) to polyvinylpyrrolidone (PVP) weight ratios (10:0, 7:3 and 6:4) of PAN/PVP. The as-spun PAN/PVP were carbonized in three steps; stabilization, carbonization and activation at 800 ºC to obtain carbon nanofibers. The morphology and structure of the carbon nanofibers (CNFs) were completely characterized by field emission scanning electron microscopy (FE-SEM), x-ray diffraction (XRD) and Raman spectroscopy. The elemental composition and the chemical bonding of CNFs were analyzed by x-ray photoelectron spectroscopy (XPS), the magnetic properties of CNFs were measured by vibrating sample magnetometer (VSM) at room-temperature. XRD patterns showed the phase of amorphous carbon structure. The average diameter sizes of the carbon nanofibers ranged from 340 to 484 nm. Raman analysis was used to determine the carbon qualities in the samples by the numbers of sp3/sp2 hybridized atoms. Chemical analysis with XPS indicated that there were no magnetic contaminants in the samples. The PAN/PVP weight ratio of 6:4 showed ferromagnetic carbon nanofibers with the highest specific magnetization as ~144.2 memu/g at 300 K. These results inspire us to further research the potential of carbon materials, as a completely new class of magnetic devices. This will aid the development of new technologies in the near future.
SRT1720 Protects Against CSE-Induced Cellular Senescence via Accelerates of FOXO3-PINK1-mediated Mitophagy
Authors: Jiang hui , Fu Changyong , Yuan Dong , Jiang Yaona , Li Yaqing 
Published: May 2021

Abstract
BackgroundChronic obstructive pulmonary disease (COPD) is often associate with cigarette smoke extract (CSE)-introduced bronchial epithelial cell senescence, mitochondrial fragmentation. Sirtuin-1(Sirt1) has been reported to play a crucial role in mitochondrial homeostasis and confers a protective role against the onset and development of CSE introduced bronchial epithelial cell senescence in COPD although the precise mechanism(s) remain elusive. Here we hypothesized that SRT1720, a pharmacological SIRT1720 activator, exerts protect against COPD by activating PINK1 mediated mitophagy, en route to preserved mitochondrial homeostasis.MethodsCOPD rats model was established by CS exposure. During 6 months of SRT1720 treatment, airway resistance, cellular senescence and mitochondrial injury, mitophagy in the lung tissues of model rats were examined by western blot(WB) and histochemical and immunofluorescence staining. Transmission electron microscopy was also carried to elucidate the effects of SRT1720.Human bronchial epithelial cells(HBEC) were used to clarify the underlying molecular mechanisms. ResultDuring the introduction of CSE in cellular or rats, administration of SRT1720 improved airway resistance, cellular senescence and mitochondrial injury, accompanied with suppressed autophagy and mitophagy. Mitochondrial damage, cellular senescence and lung injury under contrast exposure were more severe in FOXO3 or Pink1 deficient cells and mice than in SRT1720 groups. Activation of Sirt1 by treating with SRT1720 induces autophagy enhanced. A Decrease in sirt1 expression caused by selisistat treatment promotes senescence.ConclusionsTaken together, our data suggested that suppressed SIRT1/FOXO3/Pink1 signaling mediated mitophagy played a protective role in COPD by reducing mitochondrial reactive oxygen species (ROS).
Pattern selection in multi-layer network with adaptive coupling
Authors: Feng Peihua , Wu Ying 
Published: May 2021

Abstract
Feed-forward effect modulates collective behavior of a multiple neuron network and facilitates strongly synchronization of their firing in deep layers. However, full synchronization of neuron system corresponds to functional disorder. In this work, we investigate coexistence of synchronized and incoherent neurons in deeper layer (called chimera state) in order to avoid the contradiction between facilitation of full synchronization and complete functional failure of neuron system. We focus on a multiple network containing two layers and confirm that chimera state in layer 1 could also induce that in layer 2 when the feed-forward effect is strong enough. Cluster also is discovered as a transient state which separates full synchronization and chimera state and occupy a narrow region. Both feed-forward and back-forward effect together emerge of chimera states in both layer 1 and 2 under same parameter in large range of parameters selection. Further, we introduce adaptive dynamics into inter-layer rather than intra-layer couplings. Under this circumstance chimera state still can be induced and coupling matrix will be self-organized under suitable phase parameter to guarantee chimera formation. Indeed, chimera states exist and transit to deeper layer in a regular multiple network with very strict parameter selection. The results helps understanding better the neuron firing propagating and encoding scheme in a multi-layer neuron network.
The role of pregnancy acceptability in maternal mental health and bonding during pregnancy
Authors: McNamara Josephine , Risi Alixandra , Bird Amy L. , Townsend Michelle L. , Herbert Jane S. 
Published: May 2021

Abstract
Background
Pregnancy is an important time for women’s mental health and marks the foundations of the emerging bond between mother and baby. This study aimed to investigate the role of pregnancy acceptability and intendedness in maternal mental health and bonding during pregnancy.
Methods
Data were collected from a sample of 116 Australian pregnant women through a series of self-report questionnaires pertaining to mental health and antenatal bonding.
Results
Women with low pregnancy acceptability reported higher depression, anxiety and total distress, and lower antenatal bonding, physical and environmental quality of life. Women who reported their pregnancy was intended reported higher physical quality of life than those who reported their pregnancy was unintended. The relationship between total distress and antenatal bonding was moderated by women’s degree of pregnancy acceptability (low versus high). For women with low acceptability, higher distress was associated with lower bonding, but there was no such association for women with high pregnancy acceptability. The moderation model examining associations between distress and pregnancy acceptability explained 15% of the variance in antenatal bonding scores.
Conclusion
Consideration of women’s appraisal of their pregnancy acceptability may provide a valuable framework for identifying individuals who may be at risk for mental health and bonding difficulties.
Examination of necessity for pelvic drain placement after robot-assisted radical prostatectomy
Authors: Iwamoto Hiroaki , Kadono Yoshifumi , Yaegashi Hiroshi , Iijima Masashi , Kawaguchi Shohei , Nohara Takahiro , Shigehara Kazuyoshi , Izumi Kouji , Mizokami Atsushi 
Published: May 2021

Abstract
PurposeRadical prostatectomy is the gold standard treatment for clinically localised prostate cancer. Pelvic drain (PD) placement is commonly performed after RARP to prevent the formation of urinary cysts, pelvic hematomas and lymphoceles that would require further treatment. RARP has been reported to have few perioperative complications, and the need for PD placement is not clear. This study aimed to assess the need for PD placement after robot-assisted radical prostatectomy (RARP). MethodThis retrospective uncontrolled before-after study analysed the effect of PD placement on postoperative complications in patients who underwent RARP between May 2009 and April 2018.ResultsAll patients prior to October 1, 2016 had a PD placed; those after did not. Of the 308 study patients, 231 received a PD (PD group) and 77 did not (ND group). The incidence of ileus, urinary tract infection and anastomotic leak did not differ significantly between the groups; nor did the incidence of asymptomatic and symptomatic lymphocele at 2 weeks and 1 year after surgery. Multivariate analysis showed that lymph node dissection is a predictor of asymptomatic lymphocele development two weeks after surgery.ConclusionPD placement is not necessary after RARP. Future large-scale studies are required to identify patients that would benefit from PD placement.