bluuebunny/crossref_metadata_2025_split huggingface dataset:
Extreme scenario generation for renewable energies
Authors: Peng Hongqiao , Lou Yuanyuan , Sun Hui , Zuo Zhengmin , Liu Yuliang , Wang Chenxi 
Published: July 2023

AbstractWith a high penetration of renewable energies, scenario generation for wind and solar power is essential for the operation of modern power systems. Beyond the typical scenarios, extreme scenarios like full‐capacity generation for consecutive days should also be taken into account. However, developed data‐driven methods are unlikely to capture the characteristics of these extreme scenarios because of limited data. To this end, a three‐staged extreme scenario generation method is proposed for renewable energies to effectively and efficiently generate extremely high power output scenarios. First, an extreme data augmentation algorithm is designed to push the original data distribution towards the extreme case. Then, based on the extreme value theory, the tail of the augmented dataset is modelled by Generalised Pareto Distribution (GPD). Last, with the augmented dataset and the conditional labels sampled from the fitted GPD, a conditional generative adversarial network is trained with the modified loss function. A case study on a real‐world dataset shows that the authors’ proposed method has superior performance over the state‐of‐the‐art generative models in terms of extreme scenario generation. Besides, the generated samples successfully capture the temporal and spatial correlation of real scenarios of renewable energies.
Réaliser des examens complémentaires à la clinique ou en ferme : que vérifier pour s’assurer qu’un test est fiable ?
Authors: Belbis Guillaume 
Published: July 2023

Une méthode de mesure, qu’elle soit objective ou subjective, devrait au préalable avoir prouvé sa validité avant d’être utilisée. Cette étape de validation est indispensable lorsque cette méthode de mesure est utilisée pour collecter des données qui serviront au diagnostic d’un état de santé, voire au suivi de ce paramètre. La répétabilité et la reproductibilité d’une méthode de mesure d’un caractère font partie des critères de validation de cette méthode de mesure. De plus, si cette méthode de mesure vise à en remplacer une autre, considérée jusqu’à présent comme une méthode de référence, un critère de validation supplémentaire devra être connu : la concordance des valeurs du paramètre fournies par les deux méthodes.
Fiche pratique : frottis sanguin
Authors: Herman Nicolas , Guerlin Maud 
Published: July 2023

Le frottis sanguin est un étalement de sang sur une lame porte-objet qui permet la répartition régulière des cellules sanguines sur une seule épaisseur. Il devrait accompagner tout hémogramme chez les bovins. La réalisation d’un frottis de qualité nécessite : un prélèvement sanguin adéquat, un étalement et une coloration maitrisés.
Fiche pratique : réalisation des différents liquides de flottation et proposition d’une méthode coproscopique
Authors: Dravigney Laurent 
Published: July 2023

Le vétérinaire en clientèle rurale est confronté à un défi diagnostique en parasitologie. Cette fiche pratique propose d’y répondre avec deux techniques coproscopiques éprouvées scientifiquement, la flottation en solution saturée de chlorure de sodium (d = 1,2) en dispositif Mini-FLOTAC et celle en solution de sulfate de zinc (d = 1,35) en cellule de McMaster, dont la combinaison permet d’accroître la sensibilité de cet examen pour tous les parasites courants. Une étape préalable de centrifugation, permet en outre d’optimiser la conservation et la lecture des échantillons, tout en réduisant le coût et la toxicité liés aux liquides de flottation, dont la réalisation est détaillée. Enfin, pour la recherche de strongles respiratoires chez les bovins, la coproscopie de McKenna est rappelée.
Risk of Severe Maternal Morbidity in Patients with Placenta Accreta Spectrum Disorders Referred from Rural Communities to a Regional Placenta Accreta Spectrum Center
Authors: Munoz Jessian L. , Ramsey Patrick S. , Byrne John J. 
Published: July 2023

Objective The primary objective of this study was to assess the risk of severe maternal morbidity (SMM) experienced by patients residing in rural communities when delivered by a multidisciplinary team within a single urban academic center for placenta accreta spectrum (PAS). Subsequently, we aimed to determine a distance-dependent relationship between PAS morbidity and distance travelled by patients in rural communities.
Study Design This was a retrospective cohort study of patients who had PAS histopathological confirmation and delivery at our institution from 2005 to 2022. Our objective was to determine the relationship between patient locations (rural vs. urban) and maternal morbidity associated with PAS delivery. Sociogeographic determination of rurality was determined using the National Center for Health Statistics and most recent national census population data. Distance travelled was calculated by patient zip code to our PAS center using global positioning system data.
Results During the study period, 139 patients were managed by cesarean hysterectomy with confirmed PAS histopathology. Of these, 94 (67.6%) were from our urban community and 45 (32.4%) were from surrounding rural communities. The overall SMM incidence was 85% including blood transfusion and 17% without blood transfusions. Patient from rural communities were more likely to experience SMM (28.9 vs. 12.8%, p = 0.03) and this was driven by acute renal failure (1.1 vs. 11.1%, p = 0.01) and disseminated intravascular coagulopathy (1.1 vs. 8.8%, p = 0.04). SMM did reveal a distance-dependent relationship with SMM rates of 13.2, 33.3, and 43.8% at 50, 100, and 150 miles, respectively (p = 0.005).
Conclusion Patients with PAS experience high rates of SMM. Geographic distance to a PAS center appears to significantly impact the overall morbidity a patient experiences. Further research is warranted to address this disparity and optimize patient outcomes for patients in rural communities
Key Points
Standardizing Septocolumellar Sutures: A New Practical Classification
Authors: Apaydin Fazil , Capelleras Marta , Saghir Meshari 
Published: July 2023

AbstractThe septocolumellar sutures are very helpful to obtain planned rotation and projection. The goal of this study is to revitalize the septocolumellar techniques described before and present an easy new classification for these sutures, and to present their multiple uses on the same patient as a new option for surgeons. Eighty patients were involved in this retrospective study. All the patients were females except one. A detailed preoperative preparation was performed on all patients by following the principles of precision profileplasty. In this study, five main types of septocolumellar sutures were used. Type 4 septocolumellar suture was used in 39 cases, type 3 in 33, type 2 in 22, type 1 in 5, and type 5 in 2 cases. In 21 cases, more than one suture was used. In conclusion, the new practical classification presented in this study gives the surgeon powerful tools to reshape the tip during surgery.
Now a systemic rival? Inklings of complex representations of the EU in public survey data of Chinese urban residents
Authors: Woo Su Yun , Dong Lisheng , Kübler Daniel 
Published: July 2023

AbstractChina–EU relations have become more challenging recently, especially with China being labeled a ‘systemic rival’. We therefore examine Chinese perceptions of the EU, particularly to see if recent developments have led to changing representations of the EU. This article specifically attempts to discern nascent changes in the complex representation of the EU amongst the general Chinese public by analyzing and comparing original data from two surveys of 3000 Chinese citizens in six major cities conducted in 2010 and in 2020. Our study uncovers the Chinese respondents’ perceptions of the EU in a multifaceted way by providing evidence that they are reconstructing the image of the EU and reconsidering its global role. The overall assessment of China–EU relations by the Chinese public remains one of general goodwill. However, there are more discerning and critical opinions of the EU from the respondents as well, suggesting a much more differentiated view toward the EU. In highlighting the continuities and changes, and situating this discussion within the theoretical lens of two specific forms of complex representation, role and image theories, this study provides a timely and topical discussion of the emergence of a complex portrayal of the EU.
An integrated ultra-high vacuum cluster for atomic-scale deposition, interface regulation, and characterization of spintronic multilayers
Authors: Cheng Houyi , Zhang Boyu , Eimer Sylvain , Liu Yongshan , Xu Yong , Vallobra Pierre , Wang Zilu , Li Cheng , Ge Jiyao , Xu Renyou , Yao Yuxuan , Wang Xinran , Du Yinchang , Zhang Xueying , Zhang Yue , Zhao Chao , Zhao Weisheng 
Published: July 2023

The study of interface spin effects in spintronic multilayer films requires distinguishing the effects generated by different interfaces. However, testing in atmospheric conditions requires a capping layer to protect the films, which introduces new interfaces and limits the study of interface spin-dependent effects. To address this challenge, we have developed an integrated ultra-high vacuum cluster system that includes magnetron sputtering equipment, ion irradiation equipment, and time-resolved magneto-optical Kerr effect (TR-MOKE) equipment. Our sputtering system integrates 12 cathodes in a single chamber, allowing the co-sputtering of four targets. The ultimate vacuum can reach 1 × 10−10 mbar, and the deposition resolution of 0.1 nm can be achieved. Ion irradiation equipment can ionize to produce He+, and by screening and accelerating the implantation of He+ into multilayer films, ion scanning is realized, and up to 30 keV energy can be applied to the films. The TR-MOKE equipment can detect ultra-fast magnetic dynamics processes in vacuum conditions, and its external magnetic field can be rotated 360°. Our vacuum cluster system connects the three subsystems, allowing in situ film deposition, regulation, and characterization. By accurately detecting the effects of different layers, the system can distinguish the interface effects of multilayers. Experimental results demonstrate that the three subsystems can work independently or coordinate to observe the interface effects of multilayers.
Gaussian functions with odd power of r produced by the free complement theory
Authors: Kurokawa Yusaku I. , Nakatsuji Hiroshi 
Published: July 2023

We investigate, in this paper, the Gaussian (G) function with odd powers of r, rxaybzc exp(−αr2), called the r-Gaussian or simply the rG function. The reason we investigate this function here is that it is generated as the elements of the complement functions (cf’s) when we apply the free complement (FC) theory for solving the Schrödinger equation to the initial functions composed of the Gaussian functions. This means that without the rG functions, the Gaussian set of functions cannot produce the exact solutions of the Schrödinger equation, showing the absolute importance of the rG functions in quantum chemistry. Actually, the rG functions drastically improve the wave function near the cusp region. This was shown by the applications of the present theory to the hydrogen and helium atoms. When we use the FC-sij theory, in which the inter-electron function rij is replaced with its square sij=rij2 that is integrable, we need only one- and two-electron integrals for the G and rG functions. The one-center one- and two-electron integrals of the rG functions are always available in a closed form. To calculate the integrals of the multi-centered rG functions, we proposed the rG-NG expansion method, in which an rG function is expanded by a linear combination of the G functions. The optimal exponents and coefficients of this expansion were given for N = 2, 3, 4, 5, 6, and 9. To show the accuracy and the usefulness of the rG-NG method, we applied the FC-sij theory to the hydrogen molecule.
Generating candidates in global optimization algorithms using complementary energy landscapes
Authors: Slavensky Andreas Møller , Christiansen Mads-Peter V. , Hammer Bjørk 
Published: July 2023

Global optimization of atomistic structure relies on the generation of new candidate structures in order to drive the exploration of the potential energy surface (PES) in search of the global minimum energy structure. In this work, we discuss a type of structure generation, which locally optimizes structures in complementary energy (CE) landscapes. These landscapes are formulated temporarily during the searches as machine learned potentials (MLPs) using local atomistic environments sampled from collected data. The CE landscapes are deliberately incomplete MLPs that rather than mimicking every aspect of the true PES are sought to become much smoother, having only a few local minima. This means that local optimization in the CE landscapes may facilitate the identification of new funnels in the true PES. We discuss how to construct the CE landscapes and we test their influence on the global optimization of a reduced rutile SnO2(110)-(4 × 1) surface and an olivine (Mg2SiO4)4 cluster for which we report a new global minimum energy structure.
Factors that moderate global similarity in initial L3 transfer
Authors: Cabrelli Jennifer , Pichan Carrie , Ward Jessica , Rothman Jason , Serratrice Ludovica 
Published: July 2023

Abstract
Much of the formal linguistic research on third language (L3) acquisition has focused on transfer source
selection, with the overall finding that (global) structural similarity between the L1/L2 and L3 is the strongest predictor of
initial transfer patterns. Recently, Cabrelli and Pichan (2021) reported data from the production of underlyingly intervocalic
voiced stops in L3 Brazilian Portuguese (BP) and L3 Italian that highlight the notion that global similarity is likely moderated
by other factors. Specifically, data from heritage Spanish/English bilinguals learning L3 BP reflected reliance on
(non-facilitative, but globally more similar) Spanish, while L3 Italian data reflected greater reliance on (facilitative, but
globally less similar) English. The current study is a first step towards identifying the source(s) of the disparity, in which we
examine the roles of degree of dominance and explicit knowledge in heritage Spanish/English bilinguals. Thirty-four L3 Italian
learners completed a delayed repetition task in all three languages. We report English-like patterns that contradict the L3 BP
data and cannot be accounted for by degree of dominance or explicit knowledge. We connect these results to existing L3 transfer
accounts and the need for further consideration of linguistic and methodological variables, particularly acoustic salience in L3
input and task modality.
That Ropes Course Might Not Be the Metaphor You Think It Is
Authors: Yancey Gulley Needham 
Published: July 2023

Summary
Students from a regional comprehensive rural university were completing a challenge course activity as part of a graduate course under the auspices of team building. During the “Tarzan Swing” activity, where all participants move from one location to another by swinging on a rope, the team thought long and hard about how to support members with different physical abilities and body types, accounting for diverse strengths, weaknesses, and various fears related to accomplishing the task. One team member was reluctant to participate and her colleagues immediately started offering encouragement. The facilitator and professor also joined in the support discourse. What we all failed to recognize in the moment was that a group of white peers (fellow students), at the encouragement of two white men in power (the professor and facilitator), pushed a Black woman to swing from a tree on a rope with a loop on the end, in the middle of the woods in the rural American South.

Information
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A combination of Kohn-Vogelius and DDM methods for a geometrical inverse problem
Authors: Chaabane Slim , Haddar Houssem , Jerbi Rahma 
Published: July 2023

Abstract
We consider the inverse geometrical problem of identifying the discontinuity curve of an electrical conductivity from boundary measurements. This standard inverse problem is used as a model to introduce and study a combined inversion algorithm coupling a gradient descent on the Kohn-Vogelius cost functional with a domain decomposition method that includes the unknown curve in the domain partitioning. We prove the local convergence of the method in a simplified case and numerically show its efficiency for some two dimensional experiments.
Near-IR unidirectional absorption in a tunable asymmetric one-dimensional photonic crystal with VO2 defect layers
Authors: Chen Han , Xie Qing , Wang Han 
Published: July 2023

Abstract
In this paper, a dynamically modulated Near-IR asymmetric composite photonic crystal (PC) is proposed, which constitutes by a one-dimensional PC (1-D PC) with vanadium dioxide (VO2) phase transition defect layers. By combining asymmetric composite PC with VO2 phase material, which will undergo the semiconductor-metal transition (SMT) under thermal stimulation, to realize the controllable unidirectional multi-channel absorber under temperature control. Based on a relatively simple 1-D stacked thin film model, the model is investigated and optimized in terms of the structure, number of periods, and the thickness of defect layers, with the result of 20 nm for VO2 defect layers and seven circles for the post-defect period. By using the pre-defect period number of 3, an average absorbance of 0.19 can be achieved when VO2 is in the semiconductor phase at low temperature. With the rise in temperature, VO2 transitions to metal phase, where the structure absorption reaches 0.99. In addition, changing the per-defect period number to 5, the average absorption at semiconductor and metal VO2 is 0.73 and 0.10, respectively. The differential absorption around the SMT enables the tunability of single photonic devices. During the simulation, the effects of electric field and incidence angle on the structure are also analyzed. Meanwhile, the Bruggeman approximation effective medium theory is introduced in this work, and the changes of the absorption during the phase transition from semiconductor to metal in the VO2 defect layers are also given. These characteristics are applicable to controllable multispectral absorbers, infrared detectors, limiter, and optical switchers.
A hybrid energy harvester with dual-frequency-up-conversion mechanism for ultra-low frequency rotational motion under 1.5 Hz
Authors: Li Jian , Han Xinxin , Rui Xiaobo , Li Hang , Zhang Yu , Zhang Wen , Zeng Zhoumo 
Published: July 2023

Abstract
This paper proposes a hybrid energy harvester (HEH) based on dual-frequency-up-conversion mechanism, which is suitable for ultra-low frequency rotation. This mechanism takes full advantage of the periodic excitation provided by gravity to achieve two harvesting responses in one cycle. HEH consists of the piezoelectric energy harvester (PEH) and electromagnetic energy harvester. The magnet component achieves frequency up-conversion of PEH by impact, and also induces electrical energy from the coil, thus coupling two parts together to form continuous energy harvesting. The electromechanical coupling model of HEH is established, and the characteristics are in-depth analyzed via experiments and simulations. PEH can attain a bandwidth of 1.4 Hz with an open-circuit output voltage above 5.6 V, which indicates the frequency up-conversion helps the piezoelectric cantilevers to break through the resonance limit and obtain the higher output. HEH can combine the advantages of two energy harvesting parts, obtaining the maximum power of 6.598 mW under 1.5 Hz. The results show that the dual-frequency-up-conversion mechanism greatly improves the efficiency of energy conversion and HEH has the ability to power low-power sensors at ultra-low frequencies.
Characterization of mechanical equivalent properties for node enhanced graded lattice structure
Authors: Wu Bin , Sun Feifan , Wang Lizhe , Chen Min , Lu Yi , Jiang Di 
Published: July 2023

Abstract
Considering the stress concentration at the rod connection of traditional body-centered cubic (BCC) lattice structure, a node enhanced BCC (NBCC) lattice structure was proposed. In recent years, graded lattice structure has gradually attracted attention due to their unique mechanical properties. In this paper, two different graded NBCC lattice structures were designed and their static mechanical properties were evaluated through quasi-static compression experiments and simulations. Moreover, homogenization theory was applied to calculate the equivalent modulus of lattice structure. This method was extended from uniform lattice structure to graded lattice structure by improving the application of periodic boundary conditions. The obtained results were in good agreement with the experimental and simulation data. The quasi-static compression tests demonstrated that NBCC can effectively reduce the stress concentration and improve the load-bearing capacity about 25% compared to BCC. The graded lattice structures exhibit varying mechanical properties depending on their design and present better mechanical performance in the anisotropic direction. Finally, the relative relationship between the equivalent elastic modulus and the equivalent shear modulus in the lattice structure was studied. The prediction formula for equivalent shear modulus was extended based on the Gibson-Ashby formula.
Self-assembled ratiometric sensor for specific detection of hypoxia in living cells based on lanthanide-doped upconversion nanoparticles and gold nanoparticles
Authors: Zhang Xuetao , Shu Wenhao , Cheng Manxiao , Wang Linna , Ran Xiang 
Published: July 2023

Abstract
We describes the development of a self-assembled nanoprobe for ratiometric sensing of hypoxia in living cells. The probe, UC-AuNPs, is composed of azo-functionalized upconversion nanoparticles (azo-UCNPs) and gold nanoparticles functionalized with β-cyclodextrin (CD-AuNPs). Under hypoxic conditions, reductases reduce azo derivatives on the UCNPs, leading to detachment of the CD-AuNPs and subsequent fluorescence recovery of the green emission. The ratiometric measurement incorporated into the strategy reduces the impact of external factors and improves sensitivity of the probe. The use of NIR excitation effectively minimizes interference from strong luminescence backgrounds in biosystems. The UC-AuNPs nanoprobe is able to effectively sense and monitor hypoxia conditions in living cells and has the potential to distinguish hypoxia-related diseases from healthy tissue, making it a valuable tool for early clinical diagnosis.