bluuebunny/crossref_metadata_2025_split huggingface dataset:
L’enseignement de la médecine intégrative en France : état des lieux et perspectives
Authors: Berna Fabrice , Verneuil Laurence , Paille François , Nizard Julien 
Published: May 2024

Contexte : Le recours aux pratiques de soins non conventionnelles concerne une large proportion de la population en France, en particulier les patients ayant des maladies chroniques. Certaines sont utilisées par des professionnels de santé et sont intégrées aux soins conventionnels, par exemple dans des services hospitaliers de médecine intégrative. Sensibiliser les étudiants en médecine à ces approches est important pour mieux accueillir les choix thérapeutiques des patients et savoir les conseiller. La question de l’implication de l’université dans une formation à la médecine intégrative et certaines pratiques non conventionnelles est cependant débattue en France et ne fait pas consensus. Objectif : Après une clarification des concepts principaux mobilisés, cet article dresse un état des lieux de l’enseignement universitaire des pratiques de soins non conventionnelles et de la médecine intégrative en France. Il propose une analyse succincte de la structuration de la médecine intégrative et de son enseignement en Suisse et en Allemagne. Résultats : Notre analyse permet d’identifier certaines insuffisances dans l’offre de formation en France. Nous argumentons qu’un des aspects de la stratégie de réduction des risques appliquée à ces pratiques passe par une implication de l’université dans l’enseignement de la médecine intégrative. Le projet d’une formation spécialisée transversale en médecine intégrative est proposé comme une réponse possible. Conclusion : La structuration de la médecine intégrative et de son enseignement en France permettrait d’offrir aux patients un accès sécurisé à certaines pratiques pertinentes et la France de rejoindre les nombreux pays qui la devancent dans ce domaine.
Der neonatale Fc-Rezeptor: Biologische Grundlagen und Potenzial der
therapeutischen Blockade in der Behandlung immunhämatologischer
Erkrankungen
Authors: Wienzek-Lischka Sandra , Bein Gregor 
Published: May 2024

ZusammenfassungDurch den Transport von mütterlichen IgG-Antikörpern in die Zirkulation des Fetus
erhalten die Nachkommen den humoralen „Nestschutz“ bzw. die mütterliche
„Leihimmunität“. Der transplazentare Transport von IgG-Antikörpern erfolgt in
einem komplexen Prozess, an dem der neonatale Rezeptor für das kristallisierbare
Fragment von IgG-Molekülen (Fragment cristallizable receptor neonatal, FcRn)
essenziell beteiligt ist. FcRn ist im adulten Organismus ubiquitär exprimiert,
reguliert die IgG- und Albumin-Homöostase, sowie die angeborene und adaptive
Immunität gegen IgG-Immunkomplexe und ist damit an der Abwehr infektiöser
Erkrankungen und der Anti-Tumor-Immunität beteiligt. Therapeutische
FcRn-Antagonisten blockieren das Recycling von IgG-Molekülen und führen zu einer
Absenkung der IgG-Serumspiegel. Im Rahmen einer Schwangerschaft blockieren
therapeutische FcRn-Antagonisten den transplazentaren IgG-Transport. Die
vorliegende Übersichtsarbeit soll den aktuellen Stand der potenziellen Anwendung
von FcRn-Antagonisten bei immunhämatologischen Erkrankungen durch Autoantikörper
sowie im Rahmen von Erkrankungen des Fetus und Neugeborenen durch mütterliche
Alloantikörper darstellen.
Strategien zur Versorgung von RhD-negativen Patienten mit
RhD-positiven Erythrozytenkonzentraten
Authors: Flommersfeld Sabine , Ertl Birgit 
Published: May 2024

ZusammenfassungDie Versorgung von RhD-negativen Patienten stellt eine zunehmende Herausforderung
für nahezu alle transfundierenden Einrichtungen in Deutschland dar, verschärft
durch den bundesweiten Rückgang der Spendezahlen von ca. 10% gegenüber den
Spendezahlen vor der Coronapandemie. In dem Praxistipp wird sowohl auf die
Risikoevaluierung einer Immunisierung gegen das RhD-Merkmal eingegangen als auch
auf die verschiedenen Versorgungsstrategien zum einen bei unbekannten Patienten
in der Notfallversorgung, als auch bei RhD-negativen Patienten mit semielektivem
oder chronischem Transfusionsbedarf. Ferner werden die internationalen
Leitlinien in Bezug auf die Umstellungspraxis vorgestellt und verglichen.
Hautklinik am DRK-Krankenhaus Chemnitz-Rabenstein – Vergangenheit, Gegenwart, Zukunft
Authors: Kaatz Martin , Ziller Fabian , Mlynek Agnieszka , Meinig Robert , Höpner Jörg , Löbig Tina , Fischer-Vulpe Konstantin , Ettler Jiri 
Published: May 2024

ZusammenfassungDie Hautklinik am DRK-Krankenhaus Chemnitz-Rabenstein verfügt als Schwerpunktklinik für den Bereich Dermatologie und Allergologie über ein vollständiges Spektrum des Fachgebiets und versorgt nicht nur das Stadtgebiet Chemnitz, sondern auch weite Teile des Umlands bis in das Erzgebirge hinein.
20 Jahre Arbeitsgemeinschaft für Geschichte der Dermatologie und Venerologie in der Deutschen Dermatologischen Gesellschaft e. V. (AGDV)
Authors: Gregersen Deborah Maria , Lorenz Martin , Geiges Michael Lukas , Löser Christoph R. 
Published: May 2024

ZusammenfassungDas Interesse an der eigenen Fachgeschichte und das Bewusstsein einer identitätsstiftenden Wirkung der Auseinandersetzung mit der Geschichte führten zur Gründung der AGDV. In regelmäßigen Arbeitstreffen und Sitzungen entstand eine Plattform für wissenschaftlichen Austausch und persönliche Projekte, die sich mit der Fachgeschichte beschäftigen. Dies ist ein Rück- und Ausblick über die 20-jährige Vereinsgeschichte.
Komplexe Bewegungskontrolle der HWS
Authors: Luomajoki Hannu , Ernst Markus 
Published: May 2024

Liebe Leserinnen und Leser,Bewegungskontrollproblematiken zählen zur Untergruppe unspezifischer Rückenschmerzen
oder besser gesagt zu der Gruppe von Rückenschmerzen, denen keine spezifische
strukturelle Ursache zugeordnet werden kann. Bisher wurden zuverlässige Tests dieser
Problematiken sowie wirksame Übungen zur Bewegungskontrolle im unteren Rückenbereich
veröffentlicht 1. Dazu zählen mehrere
randomisierte Studien sowie eine Meta-Analyse 2.
Die amerikanische Leitlinie für untere Rückenschmerzen empfiehlt
Bewegungskontrollübungen, wenn ein*e Patient*in dieser Untergruppe zugeordnet werden
kann 3.
Die operative Versorgung einer bimalleolären OSG-Fraktur – Tipps und Tricks
Authors: Mayr Jakob , Schramm Simon , Renner Nina , Perl Mario , Palm Hans-Georg 
Published: May 2024

ZusammenfassungDie obere Sprunggelenksfraktur als häufigste Fraktur der unteren Extremitäten, verursacht vor allem durch Pro- und Supinationstraumata, stellt junge Operateure im Fach der O&U immer wieder vor spezielle Herausforderungen. Nicht zuletzt aufgrund des fragilen Weichteilmantels rund um das Sprunggelenk, auch aufgrund der anatomischen Gegebenheiten im Bereich des oberen Sprunggelenks und der postoperativen biomechanischen Belastungen bedarf es operativer Erfahrung, um gute operative Ergebnisse zu erzielen. Im folgenden Video werden die wichtigsten Schritte sowie Tipps und Tricks der operativen Versorgung einer Bimalleolarfraktur aufgegriffen und erklärt. Ziel des Lehrvideos ist es, die wichtigsten Schritte der Operation zu vermitteln und so den jungen Kollegen der O&U für ihren klinischen Alltag nahezubringen.
Fertility and Pregnancy after Bariatric Surgery: Challenges and Solutions
Authors: Mina Angeliki , Asraiti Amna , Abdelgadir Elamin 
Published: May 2024

Abstract
Introduction Obesity is increasing worldwide, and bariatric surgery (BS) is increasingly employed for weight management in women of reproductive age. An interplay between pregnancy and BS is very likely. A review of the challenges faced and solutions needed is warranted.
Materials and Methods A narrative, nonsystematic review of the international literature from a single online database (PubMed) was performed on July 23, 2023. All articles were included. The retrieved relevant literature is narrated in a concise thematic account.
Results BS carries major metabolic, mechanical, and vascular benefits, possibly accompanied by nutritional, vitamins, minerals, and micronutrient deficiencies, which might be clinical or subclinical. A few of the frequently reported postbariatric nutritional jeopardies could be augmented by the physiological changes of pregnancy, which need a different approach to management. Nutritional deficiencies during pregnancy could carry both maternal and fetal short- and long-term risks. Fetal risks may range from miscarriage to low birth weight, neural tube defects, congenital anomalies, cognitive impairment, and internal organ dysplasia. Postbariatric status is, by default, a high-risk pregnancy category, given the altered biochemical, vasomotor, and mechanical indices of any lady treated with BS. Postgastric bypass hypoglycemia (PGBH) is a relatively common phenomenon during pregnancy, and it usually calls for multidisciplinary action to control. A dedicated monitoring protocol before, during, and after pregnancy has been suggested in several guidelines to guard against the potentially devastating consequences to both mother and fetus.
Conclusions Weight reduction after BS enhances fertility. The optimum timing for ladies treated with BS to get pregnant is not very well established yet. However, various societies have provided multidisciplinary management guidance of management prior to and during pregnancy. Many nutritional supplements that are not routinely prescribed during pregnancy will be essential for those treated with BS. Further studies are still warranted to ensure the safe interim between BS and conception as well as the safety of various doses of medications used for postbariatric individuals, for instance, medications used for PGBH.
Nexus between boardroom independence and firm financial performance: evidence from South Asian emerging market
Authors: Khan Majid Jamal , Saleem Faiza , Ud Din Shahab , Yar Khan Muhammad 
Published: May 2024

AbstractThis study empirically investigates the linkage between boardroom independence and the financial performance of non-financial firms in an emerging market featured by family-controlled businesses and concentrated ownership. The relationship is tested in a sample of 152 non-financial firms listed on the Pakistan Stock Exchange over a period from 2003 to 2018. Firms’ financial performance is measured through return on assets (ROA), return on equity (ROE), market-to-book ratio (MBR), and Tobin’sQ(TQ), while boardroom independence is measured through the proportion of non-executive directors on the corporate board. Using the dynamic GMM approach to address the possibility of endogeneity, it was found that boardroom independence is significantly negatively related to the financial performance of the sample firms. This negative impact is due to the reason of close ties of outside independent directors (non-executive directors) with dominant shareholders and management in personal, financial, and social terms. A significant negative influence of the board size and CEO duality on firms’ financial performance was also observed. The present study will add to the existing literature on corporate governance and firm financial performance using firm-level manually collected data. Further, our findings will also help the policymakers by providing empirical insights for strengthening corporate governance mechanisms in emerging market economies, specifically in the context of Pakistan.
Visual propaganda in chinese central and local news agencies: a douyin case study
Authors: Zhao Jiaye , Zhang Dechun 
Published: May 2024

AbstractThis study examines short videos sourced from the Douyin accounts of Chinese central and local news agencies spanning the period from 2018 to 2023, aiming to shed light on the dynamics of visual propaganda within social media and short-form video content. A comprehensive analysis of 2852 short videos was undertaken, focusing on prevalent themes, visual motifs, and emotional persuasion techniques. The results delineate a divergence in focus between central and local news agencies: while the former prioritizes content related to the military, police, and firefighting, the latter emphasizes “livelihood warmth” topics. Central agencies predominantly feature soldiers, police officers, and firefighters, whereas local agencies portray individuals devoid of explicit political affiliations alongside other influencers. Emotional scrutiny unveils a contrast in strategies, with central agencies predominantly evoking emotions such as anger, disgust, fear, and intolerance, while local agencies employ anticipation, acceptance, and respect. This investigation underscores the profound influence of political authority within China’s propaganda framework, shaping both the substance and emotional resonance of political short videos within a hierarchical paradigm.
Exploring the dynamics of consumer engagement in social media influencer marketing: from the self-determination theory perspective
Authors: Gu Chenyu , Duan Qiuting 
Published: May 2024

AbstractInfluencer advertising has emerged as an integral part of social media marketing. Within this realm, consumer engagement is a critical indicator for gauging the impact of influencer advertisements, as it encompasses the proactive involvement of consumers in spreading advertisements and creating value. Therefore, investigating the mechanisms behind consumer engagement holds significant relevance for formulating effective influencer advertising strategies. The current study, grounded in self-determination theory and employing a stimulus-organism-response framework, constructs a general model to assess the impact of influencer factors, advertisement information, and social factors on consumer engagement. Analyzing data from 522 samples using structural equation modeling, the findings reveal: (1) Social media influencers are effective at generating initial online traffic but have limited influence on deeper levels of consumer engagement, cautioning advertisers against overestimating their impact; (2) The essence of higher-level engagement lies in the ad information factor, affirming that in the new media era, content remains ‘king’; (3) Interpersonal factors should also be given importance, as influencing the surrounding social groups of consumers is one of the effective ways to enhance the impact of advertising. Theoretically, current research broadens the scope of both social media and advertising effectiveness studies, forming a bridge between influencer marketing and consumer engagement. Practically, the findings offer macro-level strategic insights for influencer marketing.
Repeatability and reproducibility of physically consistent single sheet testing with H-coil
Authors: Shilyashki Georgi , Pfützner Helmut 
Published: May 2024

Measurements of magnetic losses of electric steel are usually performed by International Electrotechnical Commission standardized Epstein testers or Single Sheet Testers (SSTs). According to round robin tests, the corresponding levels of repeatability are of the order of 0.1%, and those of reproducibility are of the order of 1%. However, orders of absolute accuracy are unknown due to the applied “current method.” Here, we report corresponding tests for the so-called “physically consistent SST.” Consistency is achieved by a “giant” tangential field coil on a 50 cm long and 17 cm wide soft magnetic sample, using a thin amorphous yoke for magnetization. Tests were made in two labs with very different working conditions (sea levels of 200 and 1100 m, respectively), with very similarly built-up testers. Measurements were made for peak inductions between 1 and 1.9 T. For two distributed samples, the repeatability errors were lower than 0.3%, and the reproducibility errors were lower than 1%. This indicates that SSTs with an H-coil are not less reliable than current based ones. However, the absolute accuracy can be estimated to be much better, being close to 2%.
From Topological Nodal-Line Semimetals to Quantum Spin Hall Insulators in Tetragonal SnX Monolayers (X=F, Cl, Br, I)
Authors: Zhu 朱 Ye 晔 , Zhao 赵 Bao 宝 , Xue 薛 Yang 阳 , Xu 徐 Wei 玮 , Xu 徐 Wenting 文婷 , Yang 杨 Zhongqin 中芹 
Published: May 2024

Abstract
Two-dimensional (2D) topological materials have recently garnered significant interest due to their profound physical properties and promising applications for future quantum nanoelectronics. Achieving various topological states within one type of materials is, however, seldom reported. Based on first-principles calculations and tight-binding models, we investigate topological electronic states in a novel family of 2D halogenated tetragonal stanene (T-SnX, X = F, Cl, Br, I). All the four monolayers are found to be unusual topological nodal-line semimetals (NLSs), protected by a glide mirror symmetry. When spin-orbit coupling (SOC) is turned on, T-SnF and T-SnCl are still ascertained as topological NLSs due to the remaining band inversion, primarily composed of Sn pxy
orbitals, while T-SnBr and T-SnI become quantum spin Hall insulators. The phase transition is ascribed to moving up in energy of Sn s orbitals and increasing of SOC strengths. The topology origin in the materials is uniformly rationalized through elementary band representations. The robust and diverse topological states found in the 2D T-SnX monolayers position them as an excellent material platform for development of innovative topological electronics.
One consistency relation for all single-field inflationary models
Authors: Namjoo Mohammad Hossein 
Published: May 2024

AbstractIn this paper, we present a non-Gaussianity consistency relation that enables the calculation of the squeezed limit bispectrum of the curvature perturbation in single-field inflationary models by carefully inspecting the background evolution and the linear perturbation theory. The consistency relation is more general than others in the literature since it does not require any specific symmetry, conservation of the curvature perturbation at large scales, attractor background evolution or canonical kinetic energy of the inflaton field. We demonstrate that all known examples of the squeezed limit bispectrum in single-field models of inflation can be reproduced within this framework.
Toward a Direct Measurement of the Cosmic Acceleration: The Pilot Observation of HI 21 cm Absorption Line at FAST
Authors: Kang Jiangang , Lu Chang-Zhi , Zhang Tong-Jie , Zhu Ming 
Published: May 2024

Abstract
This study presents results on detecting neutral atomic hydrogen (H i) 21 cm absorption in the spectrum of PKS PKS1413+13 at redshift z = 0.24670041. The observation was conducted by FAST, with a spectral resolution of 10 Hz, using 10 minutes of observing time. The global spectral profile is examined by modeling the absorption line using a single Gaussian function with a resolution of 10 kHz within a 2 MHz bandwidth. The goal is to determine the rate of the latest cosmic acceleration by directly measuring the redshift evolution of the H i 21 cm absorption line with Hubble flow toward a common background quasar over a decade or longer time span. This will serve as a detectable signal generated by the accelerated expansion of the Universe at redshift z < 1, referred to as redshift drift

z

̇

or the SL effect. The measured H i gas column density in this DLA system is approximately equivalent to the initial observation value, considering uncertainties of the spin temperature of a spiral host galaxy. The high signal-to-noise ratio of 57, obtained at a 10 kHz resolution, strongly supports the feasibility of using the H i 21 cm absorption line in DLA systems to accurately measure the redshift drift rate at a precision level of around 10−10 per decade.
EEG motor imagery decoding: a framework for comparative analysis with channel attention mechanisms
Authors: Wimpff Martin , Gizzi Leonardo , Zerfowski Jan , Yang Bin 
Published: May 2024

Abstract

Objective. The objective of this study is to investigate the application of various channel attention mechanisms within the domain of brain-computer interface (BCI) for motor imagery decoding. Channel attention mechanisms can be seen as a powerful evolution of spatial filters traditionally used for motor imagery decoding. This study systematically compares such mechanisms by integrating them into a lightweight architecture framework to evaluate their impact. Approach. We carefully construct a straightforward and lightweight baseline architecture designed to seamlessly integrate different channel attention mechanisms. This approach is contrary to previous works which only investigate one attention mechanism and usually build a very complex, sometimes nested architecture. Our framework allows us to evaluate and compare the impact of different attention mechanisms under the same circumstances. The easy integration of different channel attention mechanisms as well as the low computational complexity enables us to conduct a wide range of experiments on four datasets to thoroughly assess the effectiveness of the baseline model and the attention mechanisms. Results. Our experiments demonstrate the strength and generalizability of our architecture framework as well as how channel attention mechanisms can improve the performance while maintaining the small memory footprint and low computational complexity of our baseline architecture. Significance. Our architecture emphasizes simplicity, offering easy integration of channel attention mechanisms, while maintaining a high degree of generalizability across datasets, making it a versatile and efficient solution for electroencephalogram motor imagery decoding within BCIs.
Design of Pseudorandom Signal Generator Based on a Dual Memristor Chaotic System
Authors: Fang Na , Wang Jiabin , Jiang Yong , Liang Wanyong 
Published: May 2024

Abstract
This paper constructs a pseudo-random signal generator based on a dual memristor chaotic system. Firstly, the chaotic characteristics of the dual memristor chaotic system were explored through theoretical analysis and MATLAB numerical simulation, and a MULTISIM simulation circuit for the dual memristor chaotic system was constructed. Then, based on the threshold decision quantization method, a pseudorandom signal generator quantization circuit is formed by connecting an inverter amplifier and a hysteresis comparator on the output side of the analog circuit. Finally, the randomness of the pseudorandom sequence is discussed by NIST test and correlation analysis. The analysis results show that the pseudorandom sequence generated by the pseudo-random signal generator based on the dual memristor chaotic system exhibits good randomness.
Resonance Detection Method of AC-DC Hybrid Micro-grid Based on Wavelet Transform and Fast Fourier Transform
Authors: Gao Jing , Zhao Yuan , Lu Yi , Xu Guangda 
Published: May 2024

Abstract
The grid connection of a mass of distributed power sources in the AC/DC hybrid micro-grid will cause harmonics, voltage sags, voltage fluctuations, and flicker in the grid, which seriously affects the power quality of the grid. Therefore, the power quality problems such as the resonance generated by the AC/DC hybrid micro-grid need to be studied urgently. In this paper, a resonance detection technology based on the combination of wavelet transform (WT) and fast Fourier transform (FFT) is proposed. This method uses wavelet transform to process the high-frequency and low-frequency parts of the signal separately, and eliminates part of the interference signal. The method then uses the FFT to obtain the resonance content. The AC/DC hybrid micro-grid resonance detection method based on WT and FFT can not only determine the time and amplitude of the resonance signal, but also filter the interference signal and improve the accuracy of frequency domain analysis. It is verified by simulation that the algorithm can detect the resonance of the AC/DC hybrid micro-grid.