bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of voltage limit‐induced barrier for connecting inverter‐based distributed generators to medium voltage networks: Australian case studies
Authors: Rahman Mir Toufikur , Gu Mingchen , Ahmed Moudud , Hasan Kazi N. , Meegahapola Lasantha 
Published: June 2024

AbstractInverter‐based distributed generators (IBDGs), mainly solar photovoltaic, connected in medium‐voltage (MV) networks cause challenges, such as voltage limit violations, for distribution network service providers (DNSPs), and require advanced network management strategies to mitigate these challenges. A theoretical analysis of the voltage limit‐induced barrier to IBDG connection and their export limits due to the change in network characteristics is imperative for developing new strategies. The authors formulated a relationship between the network equivalent impedance and the IBDG's connection point in the network and further explored the link between the network equivalent impedance and voltage magnitude due to the IBDG connection point. The authors also assessed the voltage limit‐induced barrier to IBDG connections in MV networks and proposed solutions to overcome issues with the dynamic export limit of IBDGs. Four representative Australian MV networks are analysed in DIgSILENT PowerFactory under different scenarios, such as variation in IBDG location and static and dynamic export limits. The authors found that an IBDG connected at the end of the network can achieve better performance in supporting the network voltage. An IBDG with a dynamic export limit can export three times more energy than the static export limit, which benefits both the DNSPs and IBDG owners.
Lightweight fruit detection algorithms for low‐power computing devices
Authors: Lawal Olarewaju Mubashiru , Zhao Huamin , Zhu Shengyan , Chuanli Liu , Cheng Kui 
Published: June 2024

AbstractA lightweight fruit detection algorithm is important to ensure real‐time detection on low‐power computing devices while maintaining detection accuracy. In addition, the fruit detection algorithm is also faced with some environmental factors. To solve these challenges, lightweight detection algorithms termed YOLO‐Lite, YOLO‐Liter and YOLO‐Litest were developed based on the YOLOv5 framework. The compared mean average precision (mAP) detection revealed that YOLO‐Lite at 0.86 is 2%, 4%, 5%, 7%, and 16% more than YOLO‐Liter and YOLOv5n at 0.84 each, YOLOv4‐tiny at 0.82, YOLO‐Liter at 0.81, YOLO‐MobileNet at 0.79, and YOLO‐ShuffleNet at 0.70, respectively, but not for YOLOv8n at 0.87. On the Computer platform, except for YOLOv4‐tiny at 178.6 frames per second (FPS), the speed of YOLO‐Litest at 158.7 FPS is faster than YOLO‐Liter at 129.9 FPS, YOLO‐Lite at 120.5 FPS, YOLO‐ShuffleNet at 119.0 FPS, YOLOv8n at 116 FPS, YOLOv5n at 111.1 FPS, and YOLO‐MobileNet at 89.3 FPS. Using Jetson Nano, the 32.3 FPS of YOLO‐Litest is faster than other algorithms, but not YOLOv4‐tiny's 34.1 FPS. On the Raspberry Pi 4B, YOLO‐Litest with 4.69 FPS, outperformed other algorithms. The choices for an accurate and faster detection algorithm are YOLO‐Lite and YOLO‐Litest respectively, while YOLO‐Liter maintains a balance between them.
Impfen in schwierigen Situationen
Authors: Borte Michael 
Published: June 2024

ZUSAMMENFASSUNGFehlgeleitete Immunreaktionen bei Patienten mit Autoimmunerkrankungen triggern wesentlich deren intrinsische Infektionsanfälligkeit. Diese wird noch verstärkt durch verschiedene Medikamente und immunsuppressive Therapien. Viele dieser Infektionen sind jedoch impfpräventabel und ein umfassender Impfschutz unserer Patienten mit rheumatischen oder Autoimmunerkrankungen ist erwünscht. Der behandelnde Arzt muss seine Entscheidungen im Spannungsfeld zwischen Infektionsrisiko, Impfrisiko und Impferfolg treffen. Die Behandlung mit Immunsuppressiva gehört zu den am häufigsten genannten Gründen für Indikationsimpfungen in den jährlich aktualisierten Empfehlungen der Ständigen Impfkommission am Robert Koch-Institut. Viele Fragen bleiben aber offen, da Krankheitsbilder und deren Behandlung durch Immunsuppressiva sehr unterschiedlich sind.
„Ja, Polka ist schon cool!“ Aber immer noch ein schwieriges Feld
Authors: Huber Gerhard , Kaiser Thomas , Weiß Klaus 
Published: June 2024

ZusammenfassungBetrieb und Arbeitsplatz sind für viele Menschen die einzige Option, um sie mit
dem Thema Gesundheitsförderung zu erreichen. Dies gilt besonders für das
Arbeitsfeld der stationären Altenpflege, da wir denjenigen, die für die
Gesundheit und Pflege anderer Menschen sorgen, besondere Aufmerksamkeit widmen
sollten. Die hohe Arbeitsbeanspruchung und die hohen Arbeitsunfähigkeitszahlen
wurden im Rahmen des Modellvorhabens POLKA ausführlich analysiert und an anderer
Stelle publiziert. Das Modellvorhaben POLKA ist durch die Einbindung der
Einrichtungen und ihrer Leitungen für eine erfolgreiche Implementation
gekennzeichnet. In Ergänzung zu den quantitativen Forschungsansätzen wurden die
konkreten Erfahrungen und Einschätzungen der Heimleitungen qualitativ durch
strukturierte Interviews erschlossen. Die computergestützte Auswertung der
Interviews ergab einen substanziierten Einblick in die Förderfaktoren und
Barrieren der Projektumsetzung. Die Compliance der Mitarbeiter*innen in Form der
Reaktanz konnten als relevante übergeordnete Kategorie identifiziert werden, für
die Handlungsbedarf besteht.
Translation der Ergebnisse und Erfahrungen aus dem Modellvorhaben
POLKA in einen praxisbezogenen Kontext
Authors: Weiß Klaus , Kaiser Thomas 
Published: June 2024

ZusammenfassungIm Rahmen des Pilotprojekts POLKA wurden weitereichende Untersuchungen,
Assessments und praktische Erfahrungen zur Umsetzung der Konzeptidee gemacht. Um
den Prozess der Anpassung der Projektabläufe und Inhalte zeitnah in folgende
Angebote anwenden zu können, werden in diesem Artikel Erkenntnisse und
Lösungsvorschläge zusammenfassend dargestellt. In einer weiteren Zusammenarbeit
der Projektbeteiligten ist es so möglich, in den zukünftigen Prozessen die
Erkenntnisse zu berücksichtigen und eine noch erfolgreichere Umsetzung der
Projektanforderungen zu ermöglichen.
Tandem [5,5]-/[3,3]-Rearrangements of Aryl Sulfoxides with Allyl Nitriles
Authors: Hu Mengjie , Ru Liying , Peng Bo , Zhu Mengjiao , Yang Shengwen , Fan Suojiang , Ji Jiangtao , Zheng Dingming 
Published: June 2024

AbstractTandem aromatic rearrangements represent a potent strategy for modulating the regioselectivity of a rearrangement process. In this article, we disclose two novel tandem aromatic rearrangements triggered by sulfonium [5,5]-rearrangement recently developed in our laboratory. Specifically, the [5,5]-rearrangement of aryl sulfoxides with allyl nitriles, followed by [3,3]-Cope rearrangement, forges a seamless tandem [5,5]-/[3,3]-rearrangement cascade, affording ortho-functionalized aryl sulfides. The other tandem process involves [5,5]-rearrangement of aryl sulfoxides with allyl nitriles, followed by nucleophilic addition/DDQ-oxidation-induced [3,3]-Cope rearrangement, eventually yielding meta-functionalized aryl sulfides. Both consecutive rearrangements enrich the repertoire of tandem aromatic rearrangement methodologies.
(R)-(−)-Xanthorrhizol Inhibits the Migration and Invasion of Triple-Negative Breast Cancer Cells by Suppressing Matrix Metalloproteinases via the NF-κB Signaling Pathway
Authors: Al-Amin Mohammad , Fazalul Rahiman Siti Sarah , Khairuddean Melati , Muhamad Salhimi Salizawati 
Published: June 2024

Abstract(R)-(−)-xanthorrhizol is a bioactive sesquiterpenoid and major chemical constituent of Curcuma zanthorrhiza rhizomes. It was reported to have many pharmacological activities including nephroprotective, hepatoprotective, antimicrobial, anti-inflammatory, antioxidant, antihypertensive, antihyperglycemic, antiplatelet, estrogenic, and antiestrogenic properties. (R)-(−)-xanthorrhizol was also investigated for antiproliferative activity against many cancer cells including breast, lung, liver, ovarian, and colon cancer. It was also revealed to have a potential effect on TNBC cells MDA-MB-231. Considering the previous studies, this study has aimed to investigate the antimigratory and anti-invasive properties, as well as the possible molecular mechanisms, behind these properties. The findings of (R)-(−)-xanthorrhizol on MDA-MB-231 cell migration and invasion demonstrated significant inhibition at three different concentrations in a concentration-dependent manner, which was observed
in the scratch, transwell migration, and invasion assays. Further investigation of the molecular mechanism using gelatin zymography revealed that (R)-(−)-xanthorrhizol prevented cell migration and invasion of breast cancer cells through the inhibition of matrix metalloproteinase-2 and matrix metalloproteinase-9 expression. Western blot analysis indicated that the inhibition of matrix metalloproteinases is possibly the result of the inhibition of phosphorylation in the NF-κB signaling pathway. These findings corroborate (R)-(−)-xanthorrhizol to proceed for the further studies as a possible future drug candidate for cancer patients.
Discovery and Characterization of Panaxatriol as a Novel Thrombin Inhibitor from Panax notoginseng Using a Combination of Computational and Experimental Approaches
Authors: Wang Xing , Ma Yuqing , Zuo Chunfang , Zhao Zixi , Ma Ruonan , Wang Lele , Fang Yuzhen , Zhang Yuxin , Wu Xia 
Published: June 2024

AbstractThrombin is a crucial enzyme in the coagulation cascade, and inhibitors of thrombin have been extensively studied as potential antithrombotic agents. The objective of this study was to identify natural inhibitors of thrombin from Panax notoginseng and evaluate their biological activity in vitro and binding characteristics. A combined approach involving molecular docking, thrombin inhibition assays, surface plasmon resonance, and molecular dynamics simulation was utilized to identify natural thrombin inhibitors. The results demonstrated that panaxatriol directly inhibits thrombin, with an IC50 of 10.3 µM. Binding studies using surface plasmon resonance revealed that panaxatriol interacts with thrombin, with a KD value of 7.8 µM. Molecular dynamics analysis indicated that the thrombin-panaxatriol system reached equilibrium rapidly with minimal fluctuations, and the calculated binding free energy was − 23.8 kcal/mol. The interaction between
panaxatriol and thrombin involves the amino acid residues Glu146, Glu192, Gly216, Gly219, Tyr60A, and Trp60D. This interaction provides a mechanistic basis for further optimizing panaxatriol as a thrombin inhibitor. Our study has shown that panaxatriol serves as a direct thrombin inhibitor, laying the groundwork for further research and development of novel thrombin inhibitors.
Repeated Middle Cerebral Artery Occlusion Possibly Caused by Endoluminal Injury Due to Stent Clot Retriever: A Case Report
Authors: Ohshima Tomotaka , Miyachi Shigeru 
Published: June 2024

AbstractIn acute ischemic stroke, various endovascular approaches have been reported with high recanalization rates and good clinical outcomes. However, the best device or technique for the first attempt at mechanical thrombectomy remains a matter of debate. We report a case in which endoluminal injury from initial stent clot retrieval possibly caused repeated middle cerebral artery occlusion. A 74-year-old man presented with left-sided hemiplegia and was diagnosed with a right internal carotid artery occlusion. He underwent endovascular thrombectomy using a stent clot retriever. Although complete recanalization was achieved in the first pass, repeated middle cerebral artery occlusion occurred. Angiography revealed an irregular inner surface and thrombus formation in the superior branch of the second segment of the right middle cerebral artery. There is a risk of endoluminal injury due to stent retrieval, especially using a large sized stent against small branches. Antiplatelet therapy may be effective for preventing recurrent occlusion.
Key Messages We report a case in which endoluminal injury from initial stent clot retrieval possibly caused repeated middle cerebral artery occlusion. There is a risk of endoluminal injury due to stent retrieval, especially using a large sized stent against nonvisible small branches.
Nightmare Proneness Predicts Nightmare Frequency Incrementally Over Neuroticism and Distress
Authors: Kelly William E. , Zamora Richard C. , Park Soeun 
Published: June 2024

Abstract
Introduction Previous research found that nightmare proneness, a purported disposition to experience frequent nightmares, accounted for nightmare frequency independent of neuroticism and distress. However, these findings may have been the result of reduced reliability and content validity of the measures. The current study aimed to replicate these findings using established, lengthier measures of neuroticism and distress.
Materials and Methods In the present cross-sectional study, 230 university students completed measures of nightmare frequency, nightmare proneness, neuroticism, and distress.
Results Regression models found that nightmare proneness incrementally predicted nightmare frequency above neuroticism and distress. Additional analyses indicated that neuroticism and distress indirectly predicted nightmare frequency through nightmare proneness, whereas nightmare proneness was not associated with nightmares through neuroticism or distress.
Conclusion Nightmare proneness was statistically separable from neuroticism and distress. The results and suggestions for future research to better understand the nightmare proneness variable are discussed.
Negative health classifications: understanding avoidance and social exclusion during a pandemic
Authors: Rothmüller Barbara 
Published: June 2024

AbstractDuring a pandemic, there is a fine line between distancing and avoiding other people, with stigmatizing classifications sometimes transforming social distance into social exclusion. Drawing on Bourdieu's under-utilised theory of classification struggles, this paper conceptualises schemes of pandemic Othering in terms of Negative Health Classifications. Complementing the interactionist approach in pandemic stigma research, classification struggles are a social practice that denote a conceptual link between the individual and social structures of inequality. When social structures are unstable, as was the case during the pandemic, an established common sense can become questionable. Based on the analysis of survey data from 2606 respondents collected during one of the peaks of COVID-19 in Austria and Germany, the paper explores two struggles over health classifications, (1) social cleavages created and exacerbated by individuals who strive to tackle medical crises by avoiding the 'disease carriers', and (2) conflict over illegitimate pandemic practices resulting in the loss of social capital and a polarization of social groups. The findings offer evidence of widespread negative health classifications emerging during the COVID-19 pandemic that future research should explore in their implications for inequalities in other health policy contexts.
Principle and experimental study of a combined teardrop and heart-shaped channel bluffbody valveless piezoelectric pump
Authors: Yu Dahai , Hu Renhui , Han Lintong , Yang Jingwei , He Lipeng 
Published: June 2024

In this study, we have developed a piezoelectric pump with a combined teardrop- and heart-shaped channel based on the Coanda effect and bionics principle. The bluffbody consists of teardrop- and heart-shaped channels. The vibration and the pump flow rate are evaluated theoretically, and the flow conditions under different bluffbody heights and different main channel widths are simulated. The theoretical and simulation results show that the pump has uneven resistance to flow in forward and reverse directions, and the height of the teardrop bluffbody and the width main channel affect the flow in the channel. Test data show that under the same pressure, when the main channel is 5 mm and the bluffbody height is 8 mm, the pump flow rate is 460.8 ml/min. The pump alleviates the serious backflow problem through the fluid blocking structure and is expected to become an active driver of microfluidic devices.
The advance of Mercury’s perihelion
Authors: Berche Bertrand , Medina Ernesto 
Published: June 2024

Abstract
A very famous ‘test’ of the General Theory of Relativity (GTR) is the advance of Mercury’s perihelion (and of other planets too). To be more precise, this is not a prediction of General Relativity, since the anomaly was known in the 19th century, but no consistent explanation had been found yet at the time GTR was elaborated. Einstein came up with a solution to the problem in 1914. In the case of Mercury, the closest planet to the Sun, the effect is more pronounced than for other planets, and observed from Earth; there is an advance of the perihelion of Mercury of about 5550 arc seconds per century (as/cy). Among these, about 5000 are due to the equinox precession (the precise value is 5025.645 as/cy) and about 500 (531.54) to the influence of the external planets. The remaining, about 50 as/cy (42.56), are not understood within Newtonian mechanics. Here, we revisit the problem in some detail for a presentation at the undergraduate level.
Investigation of phonons and magnons in [Ni80Fe20/Au/Co/Au]
N
multilayers
Authors: Zdunek M , Shekhar S , Mielcarek S , Trzaskowska A 
Published: June 2024

Abstract
The interaction between phonons and magnons is a rapidly developing area of research, particularly in the field of acoustic spintronics. To discuss this interaction, it is necessary to observe two different waves (acoustic and spin waves) with the same frequency and wavelength. In the Ni80Fe20/Au/Co/Au system deposited on a silicon substrate, we observe the interaction between spin waves and surface acoustic waves using Brillouin light scattering spectroscopy. As a result, we can selectively control (activate or deactivate) the magnetoelastic interaction between the fundamental spin wave mode and surface acoustic waves. This is achieved by adjusting the magnetostrictive layer thickness in the multilayer. We demonstrate that by adjusting the number of layers in a multilayer structure, it is possible to precisely control the dispersion of surface acoustic waves while having minimal impact on the fundamental spin wave mode.
Anomaly detection model for large-scale industrial systems using transfer entropy and graph attention network
Authors: Liang Shuo , Pi Dechang , Zhang Xiangyan 
Published: June 2024

Abstract
Multivariate time series (MTS) anomaly detection is vital for ensuring the safety and reliability of large-scale industrial systems. However, existing deep learning methods often overlook complex interrelationships between different time series and the study of anomalies has been limited to detection. To address this, we propose an MTS anomaly detection model based on transfer entropy (TE) and graph attention network (GAT). In the graph construction module, by combining modified TE with automatic structure learning, we extract intricate relationships between features. In the prediction module, we modify the GAT to implement the dynamic attention mechanism and non-linear interaction between different features to improve the accuracy of model prediction. Finally, our model combines the modified TE with anomaly detection task, which can be used to provide interpretability for the detected anomalies using the constructed causal graph. Experimental results on both real and public datasets show that our approach outperforms the mainstream methods, in particular, achieving optimal results in terms of F1 scores and recall.
A novel laser interferometric method for thin film thickness measurement in gas–liquid intermittent flow
Authors: Wu Yan , Xue Ting 
Published: June 2024

Abstract
In horizontal intermittent flow, the long bubbles move toward the center of the pipe due to inertia, forming the thin liquid film above the long bubbles. Accurate measurement of the liquid film thickness is crucial for heat and mass transfer. In this paper, laser interferometric technology is innovatively introduced to measure the film thickness of the intermittent flow, and the thin liquid film is detected with a resolution of 100 nm. Considering the curvature of the circular pipe wall, which leads to divergent reflected light, the effect of the pipe wall on the interference pattern is explored by the ray tracing technique. A two-dimensional interpolation phase retrieval algorithm based on light intensity is proposed to reconstruct the thickness of the liquid film, and the average error is less than 1.86%. Benefiting from the exceptionally high resolution, research is conducted on the thin liquid film at the top of the horizontal intermittent flow, revealing its dependence on the sub-regimes and gas–liquid velocities.
Photon–carrier–spin coupling in a one-dimensional Ni(II)-doped ZnTe nanostructure
Authors: Bukhtiar Arfan , Bao Ke , Khan Muhammad Sheraz , Liang Weizheng , Sulaman Muhammad , Imran Ali , Yao Shangfei , Zou Bingsuo 
Published: June 2024

Abstract
Transition metal (TM) ion doping in II–VI semiconductors can produce exciton magnetic polarons (EMPs) and localized EMPs containing longitudinal optical (LO) phonon coupling, which will be discussed in this paper. TM ion doping in II–VI semiconductors for a dilute magnetic semiconductor show emission via magnetic polarons (MPs) together with hot carrier effects that need to be understood via its optical properties. The high excitation power that is responsible for hot carrier effects suppresses the charge trapping effect in low exciton binding energy (8.12 meV) semiconductors, even at room temperature (RT). The large polaron radius exhibits strong interaction between the carrier and MP, resulting in anharmonicity effects, in which the side-band energy overtone to LO phonons. The photon-like polaritons exhibit polarized spin interactions with LO phonons that show strong spin–phonon polaritons at RT. The temperature-dependent photoluminescence spectra of Ni-doped ZnTe show free excitons (FX) and FXs interacting with 2LO phonon–spin interactions, corresponding to 3T1(3F) → 1T1(1G) and EMP peaks with ferromagnetically coupled Ni ions at 3T1(3F) → 1E(1G). In addition, other d–d transitions of single Ni ions (600–900 nm) appear at the low-energy side. RT energy shifts of 14–38 meV are observed due to localized states with density-of-states tails extending far into the bandgap-related spin-induced localization at the valence band. These results show spin–spin magnetic coupling and spin–phonon interactions at RT that open up a more realistic new horizon of optically controlled dilute magnetic semiconductor applications.