bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deep reinforcement learning for self-tuning laser source of dissipative solitons
Authors: Kuprikov Evgeny , Kokhanovskiy Alexey , Serebrennikov Kirill , Turitsyn Sergey 
Published: May 2022

AbstractIncreasing complexity of modern laser systems, mostly originated from the nonlinear dynamics of radiation, makes control of their operation more and more challenging, calling for development of new approaches in laser engineering. Machine learning methods, providing proven tools for identification, control, and data analytics of various complex systems, have been recently applied to mode-locked fiber lasers with the special focus on three key areas: self-starting, system optimization and characterization. However, the development of the machine learning algorithms for a particular laser system, while being an interesting research problem, is a demanding task requiring arduous efforts and tuning a large number of hyper-parameters in the laboratory arrangements. It is not obvious that this learning can be smoothly transferred to systems that differ from the specific laser used for the algorithm development by design or by varying environmental parameters. Here we demonstrate that a deep reinforcement learning (DRL) approach, based on trials and errors and sequential decisions, can be successfully used for control of the generation of dissipative solitons in mode-locked fiber laser system. We have shown the capability of deep Q-learning algorithm to generalize knowledge about the laser system in order to find conditions for stable pulse generation. Region of stable generation was transformed by changing the pumping power of the laser cavity, while tunable spectral filter was used as a control tool. Deep Q-learning algorithm is suited to learn the trajectory of adjusting spectral filter parameters to stable pulsed regime relying on the state of output radiation. Our results confirm the potential of deep reinforcement learning algorithm to control a nonlinear laser system with a feed-back. We also demonstrate that fiber mode-locked laser systems generating data at high speed present a fruitful photonic test-beds for various machine learning concepts based on large datasets.
Trends of influenza vaccination coverage in pregnant women: a ten-year analysis from a French healthcare database
Authors: Corbeau Mélodie , Mulliez Aurélien , Chenaf Chouki , Eschalier Bénédicte , Lesens Olivier , Vorilhon Philippe 
Published: May 2022

AbstractPregnant women have a high risk of severe influenza, associated with obstetrical complications. The World Health Organization (WHO) has recommended influenza vaccination for all pregnant women since 2012. The vaccination coverage remains low worldwide, and in Europe, due to a lack of proposition from the health care providers, and a high refusal rate from the women. The primary aim of this study was to estimate the influenza vaccination coverage (IVC) in a population of pregnant women in France, and to analyse its evolution from 2009 to 2018. The secondary objective was to describe the vaccinated population and to find determinants associated with the vaccination. This retrospective cohort study is based on the EGB French health care database, a representative sample of the French population containing data from the health insurance system. All pregnant women who delivered medically or spontaneously over the 2009–2018 period were included. In the 2009–2018 period, only 1.2% pregnant women were vaccinated against influenza (n = 875/72,207; 95% CI 1.14–1.30). The IVC slightly increased after the 2012 WHO recommendation, from 0.33 to 1.79% (p < 0.001) but remained extremely low (4.1% in 2018). Women younger than 25 years old had a low coverage (0.6%) whereas women over 35 years old were more likely to get the influenza vaccine (1.7%; OR: 2.82, 95% CI 2.14–3.71). The vaccination behavior was not influenced by multifetal pregnancy or parity, but socio-economically deprived women were less likely to be vaccinated (OR: 0.81, 95% CI: 0.67–0.98). Women with pre-existing medical conditions had an overall higher vaccination rate (2.5%; OR: 2.32, 95% CI: 1.94–2.77). The vaccine was mainly prescribed by family physicians (58%). Influenza vaccination in pregnant women in France remains very low, particularly in younger, healthy women, and measures such as information campaigns towards pregnant women and studies of the knowledge, attitudes, and practices of the health care professionals need to be undertaken to improve the coverage.
Development of a prognostic nomogram for metastatic pancreatic ductal adenocarcinoma integrating marital status
Authors: Ma Xiang , Guo Junlong , Zhang Cuiting , Bai Jinfeng 
Published: May 2022

AbstractPrevious studies have shown that marital status can affect the overall survival (OS) of cancer patients yet its role in metastatic pancreatic ductal adenocarcinoma (mPDAC) remains unclear. This study aimed to explore the impact of marital status on the OS of mPDAC patients and to construct a prognostic nomogram to predict OS outcomes. Data from patients diagnosed with mPDAC were obtained from the Surveillance, Epidemiology, and End Results database between 1973 and 2015. The patients were randomized into primary and validation cohorts. Kaplan–Meier survival analysis was performed to compare differences in survival depending on marital status. Univariate and multivariate analyses were conducted to identify independent prognostic factors and a nomogram was established based using Cox regression analyses. Validation of the prognostic nomogram was evaluated with a calibration curve and concordance index (C-index). Our data showed significant differences in the OS of mPDAC patients with different marital status by Kaplan–Meier analysis (P < 0.05). Univariate and multivariate analyses confirmed that marital status was an independent OS-related factor in mPDAC patients. Based on the multivariate models of the primary cohort, a nomogram was developed that combined marital status, age, grade, tumor size, surgery of primary site, surgery of lymph node and metastatic. The nomogram showed that marital status had a moderate influence on predicting the OS of mPDAC patients. Moreover, the internally and externally validated C-indexes were 0.633 and 0.619, respectively. A calibration curve confirmed favorable consistency between the observed and predicted outcomes. Marital status was identified as an independent prognostic factor for OS of mPDAC patients and is a reliable and valid parameter to predict the survival of patients with mPDAC. This prognostic model has value and may be integrated as a tool to inform decision-making in the clinic.
Adults With Hearing Loss Demonstrate Resilience During COVID-19 Pandemic: Applications for Postpandemic Services
Authors: Teece Katherine , Oeding Kristi , Nelson Peggy 
Published: May 2022

Background:
The COVID-19 pandemic has produced unique challenges for persons with hearing loss. There is a unique concern that adults with hearing loss may be more susceptible to isolation than adults with normal hearing.

Purpose:
This study explored the impact of the COVID-19 pandemic on the well-being of older adults with and without hearing loss.

Research Design:
This was a longitudinal study with pre-COVID-19 and six mid-COVID-19 interviews, spanning from March 1, 2020, to October 31, 2020.

Study Sample:
The study enrolled 12 participants with hearing aids and 12 with cochlear implants aged 55–80 years that were compared to 18 age-matched adults with hearing within normal limits.

Data Collection and Analysis:
Surveys were completed to evaluate the impact of time alone and loneliness, social contact, depression, and the impact of masks on hearing. A mixed-effects statistical model was used to analyze each question.

Results:
Participants commonly reported stress and anxiety during monthly video calls. Adults with varying degrees of hearing loss reported decreased social interaction and increased stress during the pandemic, similar to the rates observed by participants with healthy hearing. Face coverings were commonly reported to affect the intelligibility of conversational speech. Participants with hearing loss found satisfactory methods for maintaining social connection during the pandemic that they hope will continue once restrictions ease fully.

Conclusions:
Participants from the hearing loss groups in this study were frustrated by challenges posed by facial masks and were resilient in their ability to cope with COVID-19 and found the use of technology to be helpful. Audiologists are encouraged to use these successful electronic means of connecting with their patients even after restrictions are fully lifted.
Effects of Psychoacoustic Training on the Pre-Attentive Processing of Harmonic Sounds and Syllables
Authors: Frey Aline , Barbaroux Mylène , Dittinger Eva , Besson Mireille 
Published: May 2022

Purpose:
This article aimed at investigating the neural underpinnings of music-to-language transfer effects at the pre-attentive level of processing.

Method:
We conducted a longitudinal experiment with a test–training–retest procedure. Nonmusician adults were trained either on frequency (experimental group) or on intensity (control group) of harmonic tones using methods from psychophysics. Pre- and posttraining, we recorded brain electrical activity and we analyzed the mismatch negativity (MMN) and the P3a component both to harmonic complex sounds and to syllables varying in frequency.

Results:
Frequency training influenced the pre-attentive perception of pitch for large harmonic deviant sounds but not for syllables.

Conclusion:
Results are discussed in terms of near and far transfer effects from psychoacoustic training to pre-attentive pitch processing and as possibly showing some limits to transfer effects.
Event‐triggered fuzzy output feedback fault‐tolerant control for interval type‐2 Takagi–Sugeno large‐scale systems with time delays
Authors: Liu Chuang , Wu Jinxia , Yang Weidong 
Published: May 2022

AbstractThe event‐triggered output feedback fault‐tolerant control problem is studied in this paper for interval type‐2 Takagi–Sugeno (IT2 T‐S) fuzzy large‐scale systems with time delays. First, a fuzzy state observer is designed to address the immeasurable states problem. Then, by introducing a discrete event‐triggered mechanism, an observer‐based event‐triggered fuzzy decentralized controller with dynamic parameters is synthesized in the presence of actuator faults based on the nonparallel distribution compensation (PDC) design principle. The sufficient conditions of asymptotic stability for the closed‐loop systems are derived by constructing an appropriate dynamic parameter based Lyapunov–Krasovskii functional candidate. Finally, a simulation example is provided to verify the feasibility of the developed fuzzy control method.
Motion behaviours and PD characteristic of free metallic particles in flowing transformer oil with paper‐covered electrodes
Authors: Yao Yuhang , Li Yi , Pan Cheng , Tang Ju , Xia Suyi , Luo Xinyu 
Published: May 2022

Abstract
The introduction of solid dielectrics to electrode surfaces will change the motion behaviours of free metallic particles and in turn affect partial discharge (PD) characteristics in transformer oil. To estimate the influence, the metallic particles movement in flowing oil was compared between different cases with and without insulating paper covering electrodes here. When the electrodes were bare, particles executed up‐down movements repeatedly in the vertical direction. As the electrodes were paper‐covered, the particles would settle on the paper surface for a period of time. Simultaneously, the PD characteristics caused by metallic particles were measured. When the electrodes were bare, the discharges concentrated in 0–90° and 300–360° and the PD magnitude reached 390 pC. When the double electrodes were paper‐covered, the PD magnitude decreased by 67% and the concentration phases of PDs would migrate to 45° and 160°. In order to analyse the experimental results, a simulation model with a paper‐covered boundary was constructed. Simulated trajectories of particles were in accord with the experiment results. Base on the model, the particle motion characteristics were obtained and the electric field distribution between the particle and electrode was calculated. Finally, the influence of paper‐covering on PD characteristics was discussed.
A saliency guided remote sensing image dehazing network model
Authors: Shi Zhenghao , Shao Shuai , Zhou Zhaorun 
Published: May 2022

AbstractThis article presents a saliency guided remote sensing image dehazing network model. It consists of the following three blocks: A dense residual based backbone network, a saliency map generator, and a deformed atmospheric scattering model (ASM) based haze removal model, of which the dense residual based backbone network is used to capture the texture detail information of a remote sensing image, the saliency map generator is used to generate the saliency map of the related remote sensing image, and the generated saliency map is used to guide the network to capture more texture details through the guided fusion module. Finally, the deformed atmospheric scattering model (ASM) is used to remove haze from remote sensing images. The model here is compared with several state‐of‐art dehazing methods on synthetic data sets and real remote sensing images. Experimental results show that on the synthetic data set, the PSNR value of this model is increased by 4.47 db and the SSIM value is increased by 0.045 compared with the best model. On real remote sensing hazy images, the visual effect of our model is also better than that of existing methods. The authors also perform experiments to demonstrate that remote sensing image dehazing is helpful for remote sensing image detection automatically.
Fault ride through capability of grid forming wind turbines: A comparison of three control schemes
Authors: Arasteh Amir , Zeni Lorenzo , Cutululis Nicolaos A. 
Published: May 2022

AbstractThe popularity of converter‐based generations, such as wind and solar, suggests that future power systems will be dominated by power‐electronic converters, reducing the share of conventional generation, and, inevitably decreasing inertia and short circuit contribution of the system. When this happens in power systems, they become more vulnerable to instabilities. A promising solution for counteracting this vulnerability could be equipping converter‐based generation units with grid forming control schemes. A study of the fault‐ride through capability of wind turbines with different grid forming control schemes is presented in this paper. In this context, Virtual Synchronous Machines, Power Synchronisation Control, and Distributed PLLs based Control are considered. The performance of these control schemes is evaluated and compared during three‐phase symmetrical faults using a case study that consists of a wind turbine connected to an AC grid. The simulated results indicate the strengths and drawbacks of each control scheme during faults.
Spectral evidence of solar neighborhood analogs in CALIFA galaxies
Authors: Mejía-Narváez A. , Sánchez S. F. , Carigi L. , Barrera-Ballesteros J. K. , Drory N. , Espinosa-Ponce C. 
Published: May 2022

Aims. We introduce a novel nonparametric method to find solar neighborhood analogs (SNAs) in extragalactic integral field spectroscopic surveys. The main ansatz is that the physical properties of the solar neighborhood (SN) should be encoded in its optical stellar spectrum.
Methods. We assume that our best estimate of such a spectrum is the one extracted from the analysis performed by the Code for Stellar properties Heuristic Assignment (CoSHA) from the MaStar stellar library. It follows that finding SNAs in other galaxies consist in matching, in a χ2 sense, the SN reference spectrum across the optical extent of the observed galaxies. We applied this procedure to a selection of CALIFA galaxies, by requiring a close to face-on projection, relative isolation, and non-active galactic nucleus. We explore how the local and global properties of the SNAs (stellar age, metallicity, dust extinction, mass-to-light ratio, stellar surface mass density, star-formation density, and galactocentric distance) and their corresponding host galaxies (morphological type, total stellar mass, star-formation rate, and effective radius) compared with those of the SN and the Milky Way (MW).
Results. We find that SNAs are located preferentially in S(B)a–S(B)c galaxies, in a ring-like structure, which radii seem to scale with the galaxy size. Despite the known sources of systematics and errors, most properties present a considerable agreement with the literature on the SN. We conclude that the solar neighborhood is relatively common in our sample of SNAs. Our results warrant a systematic exploration of correlations among the physical properties of the SNAs and their host galaxies. We reckon that our method should inform current models of the galactic habitable zone in our MW and other galaxies.
Effects of Kinesio Taping on Muscle Force of Quadriceps
Femoris and Hamstring Tendon in Un-Dominant Side in Normal
Adults
Authors: Ma Quansheng , Song Dejun , Ma Yubao , Zhang Lihua , Mi Lixin 
Published: May 2022

Abstract
Objective To observe the effects of kinesio taping on muscle force of
quadriceps and hamstring in un-dominant side.
MethodsThe subjects are consisted of 25 normal adults ranging from 20 to
25. The experiment was carried out by Biodex S4 in the angular velocity of
60°/s. 24 hours of ongoing taping later, the experiment
was taken again by multijoint isokinetic test and training system before
applying the tape, taping immediately and 24h-taping. The indexes are peak
torque (PT), relative torque (PT/BW), total work (TW) and the radio of
the muscle force between hamstring tendon and quadriceps femoris (R).
Results Compared with un-taping(T1), in taping immediately(T2), it is
significantly increased at PT, PT/BW and TW in quadriceps femoris
(P<0.05); it is increased at PT, but there’s no difference
(P>0.05), and it is significantly increased at
PT/BW(P<0.01) and TW (P<0.05) in hamstringtendon; it is
very significantly increased at R in taping immediately(T2) (P<0.01).
After 24 h’s taping(T3), compared with un-taping(T1), it is very
significantly increased at PT, PT/BW both in quadriceps femoris and
hamstring tendon (P<0.01), while it is very significantly increased in
quadriceps femoris (P<0.01) and significantly in hamstring tendon
(P<0.05) at TW; it is significantly increased at R(P<0.05).
Compared with taping immediately(T2), it is increased at PT, PT/BW in
quadriceps femoris, but there is no difference (P>0.05), while it is
significantly increased at TW (P<0.05) ; it is significantly increased
at PT and TW (P<0.05), but it is no difference at PT/BW
(P>0.05) in hamstring tendon; it is no difference at R
(P>0.05).
Conclusion The technology of Y-style kinesio taping can improve the muscle
force of quadriceps and hamstring in the un-dominant side in normal adults,
while the effect of consisting taping is significant.
The regulators’ dilemma and the global banking regulation: the case of the dual financial systems
Authors: Delle Foglie Andrea , Boukrami Elias , Vento Gianfranco , Panetta Ida Claudia 
Published: May 2022

AbstractThis paper aims to contribute to the literature debate on the regulators’ dilemma affecting international financial regulations focusing on the banking regulation of dual financial systems. In this regard, the paper provides a new taxonomy of Islamic Financial Systems considering the banking regulation as a driver for the classification and a more detailed definition of dual financial systems. The literature review reveals the existence of different financial system structures affected by socio-cultural biases due to different characteristics of various countries and financial systems globally. The risk of regulatory arbitrage or over-regulation phenomena is high, stifling the growth and the level playing field for both some systemically financial systems.
On children’s motives to influence parents’ long-term care insurance purchase: evidence from Switzerland
Authors: Courbage Christophe , Montoliu-Montes Guillem , Wagner Joël 
Published: May 2022

AbstractLong-term care (LTC) is not only a concern for elderly individuals but also for their adult children, as the latter often provide financial support and informal care to their elderly dependents. Adult children may therefore have strong incentives to have their parents purchase LTC insurance. Using data from a 2019 Swiss survey, this article first identifies a set of variables, including self-reported interest about LTC insurance, whether elderly parents live with their children and if the latter have provided informal help with personal care, which help predict the interest of adult children in having their parents covered against LTC risk. Second, it investigates the main characteristics of children’s motives for influencing their parents to purchase LTC insurance, which are classified as either altruistic, i.e. related to parental well-being, or self-interested, i.e. related to the child’s well-being. The results offer valuable insights for both policymakers and insurers when designing public LTC policies and LTC insurance products.
The concept of a stigmatic flat-field X-ray spectrograph based on conical diffraction
Authors: Kolesnikov A.O. , Ragozin E.N. , Shatokhin A.N. 
Published: May 2022

Abstract
The optical scheme of a flat-field stigmatic X-ray spectrograph, which includes a grazing-incidence focusing mirror and a concave fan-type diffraction grating crossed with respect to the mirror and mounted in a conical diffraction scheme, is calculated analytically. Spectral images of a point monochromatic source are obtained by numerical ray tracing, confirming the high quality of spectral images at a level of 1 × 4 μm. It is assumed that the use of small grazing incidence angles in combination with the application of multilayer reflective coatings, including aperiodic ones, will make it possible to extend the working spectral range of the stigmatic spectrograph to the region of the ‘tender’ (ℏω ≈ 1.5 – 6 keV) X-ray range.
One Image is Worth more than a Thousand Words: Producing an Atlas of Medical Signs for Teaching Clinical and Forensic Toxicology
Authors: Dinis-Oliveira Ricardo Jorge 
Published: May 2022

AbstractClinical and forensic toxicology are critically involved in the acquisition of basic skills to correctly suspect intoxication, collect biological and non-biological materials for toxicological analysis, comprehend the complexities inherent to laboratory activity, and understand the fundamentals of toxicokinetics and toxicodynamics that underlie the interpretation of results. This works presents a pedagogical innovation proposal for the teaching of clinical and forensic toxicology based on a compilation of more than 3 000 cases where the image was fulcra for suspicion. The experience in this article follows the model practiced in bachelors, masters, and PhD degrees, as well as in other continuing training courses, where we are teaching toxicology for more than 15 years. All these levels of education are considered fundamental to the sound development of this science. This approach aims also to offer strength to the intervention of the true toxicologist in all the toxicological phases, besides the classic analytical chemistry. Indeed, it is impossible to provide effective clinical and forensic toxicological interpretations without a proper and broad education, and not thinking exclusively in terms of laboratory techniques. In the future, it will be interesting to evaluate knowledge retention and to propose a database of videos of signs related to intoxications. Key PointsA pedagogical innovation proposal for the teaching of forensic and clinical toxicology is presented.A universal and never-ending atlas of phtotographs related to signs of intoxications have been compile.Offering to our students an integrated teaching of clinical and forensic toxicology is crucial since both are grounded in analogous toxicological principles and are mutually dependent.