bluuebunny/crossref_metadata_2025_split huggingface dataset:
Development, validation, and use of a monitoring method for fipronil and its metabolites in chicken eggs by QuEChERS with online‐SPE‐LC‐Q/Orbitrap analysis
Authors: Qu Lihua , Qi Xiaoyu , Zhao Li , Zhang Yu , Zhuge Ronghua , Hao Zhihui , Liu Congmin 
Published: April 2023

RationaleThe residues of fipronil and its metabolites in chicken eggs pose a threat to human health, so regular monitoring is necessary. However, the pretreatments of the existing detection methods are complex and time‐consuming. A simple and streamlined pretreatment method is needed to improve the detection efficiency.MethodA rapid, efficient, and facile approach employing the quick, easy, cheap, effective, rugged, and safe (QuEChERS) method with online solid‐phase extraction liquid chromatography tandem Q Exactive Orbitrap high‐resolution mass spectrometry (online‐SPE‐LC‐HRMS) was established and evaluated for the determination of fipronil, fipronil‐desulfinyl, fipronil‐sulfone, and fipronil‐sulfide in chicken eggs. An improved sample preparation technique combining QuEChERS and online‐SPE was developed. Negative targeted ion fragmentation scanning and targeted‐selected ion monitoring of HRMS were adopted to identify and quantify the target analytes.ResultsThe proposed pretreatment method took a few steps in <13 min to achieve excellent recoveries and negligible interference. High selectivity was acquired with the adoption of Q/Orbitrap HRMS. The limit of quantification (LOQ) of the analytes was 2.5 μg kg−1, meeting the detection requirements of the maximum residue level enacted by the Codex Alimentarius Commission, Japan, and the United States for the sum of fipronil and its metabolites. Extraction recoveries at three spiked concentration levels were within 84.56% to 93.84%, with relative standard deviation ≤5.87%.ConclusionThe established method is efficient and easy to operate and displays satisfactory LOQs, recoveries, accuracy, and precision. This approach serves as a reference method for monitoring eggs while providing potential solutions for fipronil determination in more complicated matrices.
Laser ablation synthesis of tellurium carbides using tellurium with nanodiamond nanocomposite
Authors: Chygorin Eduard , Pečinka Lukáš , Vaňhara Petr , Novotný Karel , Krempl Ivo , Havel Josef 
Published: April 2023

RationaleCarbides, including tellurium carbides (TeC), play crucial roles in diverse applications, but TeC synthesis has not been described in the literature. Laser ablation synthesis (LAS) coupled with mass spectrometry was used here for in situ TeC clusters synthesis and identification of the reaction products to better understand TeC formation.MethodsLaser desorption ionization time‐of‐flight mass spectrometry (LDI‐TOFMS) was used to generate the TeC clusters and determine their stoichiometry via computer modeling of isotopic patterns.ResultsA simple one‐pot procedure was developed for Te‐nanodiamond nanocomposite preparation. A suspension of fine‐powdered Te was mixed with a suspension of nanodiamonds (both in acetonitrile), and the resulting precipitated nanocomposite was suitable for the synthesis of TemCn clusters using LDI. Various unary and binary clusters were formed. The stoichiometry of the novel TemCn clusters, determined via computer modeling of isotopic patterns, is reported here for the first time.ConclusionsThe Te‐nanodiamond composite was found to be the most suitable precursor for the generation of TemCn clusters. In total, 35 binary TemCn clusters were identified, when several of them were not obtained using commercial TeC material.
Wetting of Cell Aggregates on Microdisk Topography Structures Achieved by Maskless Optical Projection Lithography
Authors: Guo Min , Li Teng , Zhang Wei‐Cai , Duan Qi , Dong Xian‐Zi , Liu Jie , Jin Feng , Zheng Mei‐Ling 
Published: April 2023

AbstractCell aggregates as a 3D culture model can effectively mimic the physiological processes such as embryonic development, immune response, and tissue renewal in vivo. Researches show that the topography of biomaterials plays an important role in regulating cell proliferation, adhesion, and differentiation. It is of great significance to understand how cell aggregates respond to surface topography. Herein, microdisk array structures with the optimized size are used to investigate the wetting of cell aggregates. Cell aggregates exhibit complete wetting with distinct wetting velocities on the microdisk array structures of different diameters. The wetting velocity of cell aggregates reaches a maximum of 293 µm h−1 on microdisk structures with a diameter of 2 µm and is a minimum of 247 µm h−1 on microdisk structures of 20 µm diameter, which suggests that the cell‐substrates adhesion energy on the latter is smaller. Actin stress fibers, focal adhesions (FAs), and cell morphology are analyzed to reveal the mechanisms of variation of wetting velocity. Furthermore, it is demonstrated that cell aggregates adopt climb and detour wetting modes on small and large‐sized microdisk structures, respectively. This work reveals the response of cell aggregates to micro‐scale topography, providing guidance for better understanding of tissue infiltration.
Engineering Structural Janus MXene‐nanofibrils Aerogels for Season‐Adaptive Radiative Thermal Regulation
Authors: Yang Weiqing , Xiao Peng , Li Shan , Deng Feng , Ni Feng , Zhang Chang , Gu Jincui , Yang Jinlin , Kuo Shiao‐Wei , Geng Fengxia , Chen Tao 
Published: April 2023

AbstractAerogels have provided a significant platform for passive radiation‐enabled thermal regulation, arousing extensive interest due to their capabilities of radiative cooling or heating. However, there still remains challenge of developing functionally integrated aerogels for sustainable thermal regulation in both hot and cold environment. Here, Janus structured MXene‐nanofibrils aerogel (JMNA) is rationally designed via a facile and efficient way. The achieved aerogel presents the characteristic of high porosity (≈98.2%), good mechanical strength (tensile stress of ≈2 MPa, compressive stress of ≈115 kPa), and macroscopic shaping property. Based on the asymmetric structure, the JMNA with switchable functional layers can alternatively enable passive radiative heating and cooling in winter and summer, respectively. As a proof of concept, JMNA can function as a switchable thermal‐regulated roof to effectively enable the inner house model to maintain >25 °C in winter and <30 °C in hot summer. This design of Janus structured aerogels with compatible and expandable capabilities is promising to widely benefit the low‐energy thermal regulation in changeable climate.
Der optimierte Einsatz von Stahl in Bestandsstrukturen – am Beispiel der Videowall Stadion Salzburg
Authors: Olipitz Michael 
Published: April 2023

AbstractAufgrund unserer begrenzten Ressourcen stellt zukünftig die Verbesserung und Weiterentwicklung unseres Bestands eine der wesentlichen Aufgaben im Bauwesen dar. Der geringstmögliche Ressourceneinsatz gepaart mit dem geringstmöglichen CO2e‐Verbrauch einer Konstruktion in der Herstellungsphase ist vom Planer durch die optimierte Wahl von Material, Struktur als auch der Herstellungsart zu finden. Der metallische Werkstoff Stahl weist durch seine implizierte Leistungsfähigkeit und durch seine Kreislauffähigkeit viele Vorteile gegenüber den mineralischen und biotischen Werkstoffen auf, wobei eine nachhaltige Baustoffwahl immer einen Optimierungsprozess unter Berücksichtigung sämtlicher Randbedingungen darstellt. Nach einer allgemeinen Ausführung zu Energie‐, Ressourceneffizienz als auch Kreislauffähigkeit der Baustoffe Stahl, Holz und Stahlbeton beschreibt dieser Beitrag den Entwurfsprozess sowie die Montage von zwei Videowallwänden in das Bestandsdach des Stadions Salzburg. Dazu wird auf die Randbedingungen der Bestandsdachsituation, die Konstruktion der Videowall als auch auf den Montageprozess vor Ort eingegangen. Um solche Aufgaben innerhalb eines sehr kurzen Zeitfensters und unter minimalem Ressourcenverbrauch erfolgreich abzuwickeln, sind sowohl ein ausreichender Kenntnisstand über das Bestandsobjekt als auch die enge kooperative Zusammenarbeit von Planung und Bau wesentliche Voraussetzungen. Das Bestandsdach sorgt in erster Linie für Inspiration und Anreiz zur Weiterentwicklung und erfordert entsprechendes Wissen, Erfahrung und Kreativität der Beteiligten. Der Herstellprozess sollte dabei nicht das Agieren einzelner Akteure sein, sondern bestenfalls eine Gemeinschaftsaufgabe von Planung und Bau mit einer möglichst fairen Verteilung der Chancen und Risiken. Denn nur wenn ein gemeinschaftliches Vorgehen – lean‐basierend – im Fokus steht, lassen sich vermehrt ressourcenschonende und CO2e‐reduzierte Bauwerke verwirklichen und damit nachhaltige Bausubstanz ganz im Sinne eines ökologischen Rationalismus schaffen.
Bond‐slip model between anchored CFRP strip and concrete by using ANN
Authors: Anil Özgür , Çevik Abdulkadir 
Published: April 2023

AbstractFor the last 20 years, carbon fiber reinforced polymers (CFRP) have been widely used in the retrofitting and strengthening of structures with inadequate earthquake performance. One of the most important design criteria in retrofitting and strengthening details developed with CFRP is delaying the debonding of CFRP strips from the surface. For this reason, the use of anchors in reinforcement details developed with CFRP has increased. In this study, available experimental data in the literature on bond‐slip research related to anchored CFRP strips were collected and a database was created. By using this database, it was aimed to create a generalized capacity equation and constitutive bond‐slip model for anchored strips via the artificial neural networks technique. The proposed NN models on the constitutive bond‐slip model are intended to be useful in design codes and finite element algorithms.
Teaching Phonemic and Phonological Awareness to Children Who Speak African American English
Authors: Washington Julie A. , Lee‐James Ryan , Stanford Carla Burrell 
Published: April 2023

ABSTRACTThere is tremendous variation in the use of American English by major geographic regions, as well as within these regions or cities, and by cultural background. The variety of English spoken by many African American people in the United States is called African American English (AAE). AAE affects early literacy skills in ways that may require differentiated classroom instruction that focuses on integrating this important language variety into both teaching and learning. The purpose of this paper is to: (1) present the characteristics of AAE and its relationship to the development of reading; (2) outline the impact of AAE on foundational language and reading skills, especially phonemic and phonological awareness; and, (3) provide some guidance for addressing variation in the classroom when teaching phonemic and phonological awareness, while simultaneously affirming African American children's identitities by acknowledging and celebrating the language strengths they bring to the classroom.
Postoperative pharmacological ventilation in a dog following surgical stabilisation of the first and second cervical vertebrae
Authors: Teotino Giulia , Auckburally Adam , Gonzales Gomez Ana , Tayari Hamaseh 
Published: April 2023

AbstractA 7‐month‐old, crossbreed dog presented for collapsing episodes and acute non‐ambulatory tetraparesis. Magnetic resonance imaging and computed tomography revealed absence of the dorsal arch of the first cervical vertebrae and displacement of the second cervical vertebrae, with severe spinal cord compression. Surgical spinal stabilisation was performed under general anaesthesia. Postoperatively, attempts to wean the animal from mechanical ventilation were unsuccessful. Despite the dog's efforts to breathe spontaneously, severe hypercapnia (EtCO2 11.4 kPa [85.5 mmHg]) developed. Due to a lack of appropriate resources, pharmacological support of ventilation was attempted, using doxapram (2 mg/kg intravenously), followed by a variable‐rate infusion (5–30 µg/kg/min) maintained for 48 hours. The dog was discharged 48 hours after doxapram discontinuation.
A comparison of staff presence and signage on zoo visitor behavior
Authors: Tay Claudia , McWhorter Todd J. , Xie Shangzhe , Mohd Nasir Tiara Sophia Binte , Reh Borja , Fernandez Eduardo J. 
Published: April 2023

AbstractMany zoos favor the use of signage to encourage learning and positive visitor experiences as well as discourage negative behaviors by visitors because of its simplicity, relatively low maintenance needed, and low cost. However, current literature suggests that conventional signage has limited impact on visitors in zoos. This study hypothesized that visitors would be less likely to exhibit negative behaviors (e.g., feeding and touching) in the presence of uniformed staff compared to signage. The study was conducted twice a day over 4 weeks with one condition per week (Baseline, Signage, Staff, and Signage + Staff). The total number of visitors and the frequency of negative visitor behaviors were observed. These behaviors reduced from 14.0% (Baseline; no signage and no staff) and 13.1% (Signage), to 4.8% (Staff) and 6.1% (Signage + Staff). Both the Staff and Signage + Staff conditions were significantly lower than the Baseline and Signage conditions. However, signage alone did not significantly differ from the baseline condition, when no intervention was implemented, and staff and signage together did not significantly differ from staff alone. This was also observed in both negative visual behaviors and negative tactile behaviors from visitors. The results suggest that methods other than signage may be more effective at reducing undesired visitor behaviors. This study could guide the design of future signage or even potentially encourage zoos to reduce reliance on signs and employ other strategies.
More Than Soft Power
Authors: Kearney Amanda , Bradley John , Dodd Vincent , Norman a-Marrngawi Dinah , Timothy a-Muluwamara Mavis , Dimanyurru Graham Friday , a-Karrakayny Annie 
Published: April 2023

AbstractIn this chapter we take the discussion of Indigenous Law further, by exploring the problematic notion of soft power and examining the epistemic logics and bad habits that have led to a perception of Indigenous Laws and knowledges as marginal, esoteric and mystical. It is argued that the positioning of Indigenous Law as an esoteric or subordinate alternative to contemporary white liberal democracy is a framing which substantiates a deep inequity between Indigenous and non-Indigenous peoples and communities.Problematising the interface at which Indigenous Laws meets western bureaucratic and legal habits is however only one part of this chapter. It is crucial to retain our focus on Indigenous Laws as they are lived and held by people within their own communal contexts. Hence the chapter importantly attends to the positioning on Indigenous Laws in contemporary life, placing an emphasis on the role of Law in supporting communities, amidst the changing conditions and contexts in which Law is emplaced. We explore the overarching applications of Indigenous Laws for Indigenous benefit.
Phenomenology at the Intersection of Gender and Race
Authors: Leboeuf Céline 
Published: April 2023

AbstractResearch on the experience of gendered embodiment, on the one hand, and racialized embodiment, on the other hand, has emerged as an important tradition in phenomenology thanks to the works of Simone de Beauvoir inThe Second Sex(1949) and Frantz Fanon inBlack Skin, White Masks(1952) respectively. Beauvoir’s work has been prolonged by pioneering feminist phenomenologists, such as Iris Marion Young and Sandra Bartky, who have investigated both the cultural significance of female bodily functions and the alienating effects of feminine standards of beauty for women. And those inspired by Fanon—for example, George Yancy and Alia Al-Saji—have homed in on the experiences of persons of color confronted by the white gaze or entering white spaces. While each of these lineages has contributed to expanding the discipline of phenomenology, specific descriptions of the bodily experiences of women of color have received comparatively little attention in this field. This chapter aims to fill this gap by exploring the bodily experiences of women of color, thereby making a case for expanding phenomenological work at the intersection of gender and race.
The Phenomenology of Zozobra: Mexican and Latinx Philosophers on (Not) Being at Home in the World
Authors: Gallegos Francisco 
Published: April 2023

AbstractThis chapter discusses some contributions that Mexican and Latinx phenomenologists have made to the critical phenomenology of home, i.e., the experience of “being at home in the world”—an experience that has always been both deeply cherished and bitterly contested. Tracing a line of thought that runs from the work of two Mexican phenomenologists in the 1940s and 1950s (Jorge Portilla and Emilio Uranga) to the work of two contemporary Latinx phenomenologists in the U.S. (Gloria Anzaldúa and Mariana Ortega), we find a shared view that the Mexican and Latinx experience has been marked by zozobra, an anxious condition characterized by the inability to be at home in the world. However, these philosophers disagree about the source of this zozobra, and even whether zozobra is something that should overcome or embraced and celebrated. Reading these thinkers together, we learn that home is several things simultaneously: an essential foundation for human existence; an illusory ideal whose pursuit leads us to exclude vulnerable others and vulnerable parts of ourselves; and a site for the negotiation of the circumstances in which one finds oneself, in the tragic and beautiful hope of creating a life to call one’s own.
Geometric Operations in Mario Botta’s Architectural Work
Authors: Ronco Francesca , Bertola Giulia , Pupi Enrico 
Published: April 2023

AbstractThis paper investigates the role of primary plane figures, primary solids, and geometric operations in Mario Botta’s architectural works during fifty years of his career. Through the selection of three case studies, the research allows the creative process to be discretized and analyzed from a geometric-mathematical point of view.
Three Concepts of Nilpotence in Loops
Authors: Semanišinová Žaneta , Stanovský David 
Published: April 2023

AbstractWe introduce the abstract concept of supernilpotence in loop theory, and relate it to existing concepts, namely, central nilpotence and nilpotence of the multiplication group. We prove that the class of supernilpotence is greater or equal than the class of nilpotence of the multiplication group, and combining existing results, we show that a finite loop is supernilpotent if and only if its multiplication group is nilpotent. We also provide a new exposition of a classical result and crucial ingredient, that loops with a nilpotent multiplication group are centrally nilpotent and admit a prime decomposition.
Convolutional neural network–based classification for improving the surface quality of metal additive manufactured components
Authors: Abhilash P. M. , Ahmed Afzaal 
Published: April 2023

AbstractThe metal additive manufacturing (AM) process has proven its capability to produce complex, near-net-shape products with minimal wastage. However, due to its poor surface quality, most applications demand the post-processing of AM-built components. This study proposes a method that combines convolutional neural network (CNN) classification followed by electrical discharge-assisted post-processing to improve the surface quality of AMed components. The polishing depth and passes were decided based on the surface classification. Through comparison, polishing under a low-energy regime was found to perform better than the high-energy regimes with a significant improvement of 74% in surface finish. Also, lower energy polishing reduced the occurrences of short-circuit discharges and elemental migration. A 5-fold cross-validation was performed to validate the models, and the results showed that the CNN model predicts the surface condition with 96% accuracy. Also, the proposed approach improved the surface finish substantially from 97.3 to 12.62 μm.
Fractional nonlinear energy sinks
Authors: Zhang Shengtao , Zhou Jiaxi , Ding Hu , Wang Kai , Xu Daolin 
Published: April 2023

AbstractThe cubic or third-power (TP) nonlinear energy sink (NES) has been proven to be an effective method for vibration suppression, owing to the occurrence of targeted energy transfer (TET). However, TET is unable to be triggered by the low initial energy input, and thus the TP NES would get failed under low-amplitude vibration. To resolve this issue, a new type of NES with fractional nonlinearity, e.g., one-third-power (OTP) nonlinearity, is proposed. The dynamic behaviors of a linear oscillator (LO) with an OTP NES are investigated numerically, and then both the TET feature and the vibration attenuation performance are evaluated. Moreover, an analogy circuit is established, and the circuit simulations are carried out to verify the design concept of the OTP NES. It is found that the threshold for TET of the OTP NES is two orders of magnitude smaller than that of the TP NES. The parametric analysis shows that a heavier mass or a lower stiffness coefficient of the NES is beneficial to the occurrence of TET in the OTP NES system. Additionally, significant energy transfer is usually accompanied with efficient energy dissipation. Consequently, the OTP NES can realize TET under low initial input energy, which should be a promising approach for micro-vibration suppression.
Genetic parameters of husk spot resistance in macadamia breeding families
Authors: Nunn Jasmine , Hardner Craig , De Faveri Joanne , Akinsanmi Olufemi A. , O’Connor Katie , Alam Mobashwer , Topp Bruce 
Published: April 2023

AbstractHusk spot caused by the Pseudocercospora macadamiae fungus induces premature abscission of fruit in many industry standard macadamia cultivars. Fungicides and other management strategies add to farm costs, thus breeding for varietal resistance is important. Genetic parameters of husk spot symptom expression had not previously been estimated. To guide selection methods for field resistance, over 300 open-pollinated seedlings of 32 families and 24 parent genotypes were inoculated, and seven symptom expression traits were evaluated. Narrow-sense and broad-sense heritabilities were estimated, breeding values were predicted, and correlations between breeding values of trait pairs were tested for significance. The traits with the highest heritabilities were necrotic lesion number per fruit (H2 = 0.41–0.59; h2 = 0.21–0.30) and necrotic incidence (H2 = 0.19–0.27; h2 = 0.17–0.24). Breeding values of the two traits were highly correlated (r = 0.98; p < 0.001), suggesting that either trait could be used to indirectly select for the other. All genotypes expressed symptoms to some degree, however, breeding values for necrotic traits and symptom-induced premature abscission were low for clones and progeny of cultivar ‘HAES791’. Necrotic trait breeding values were also promising for progeny of cultivar ‘HAES246’ and clones of Australian Macadamia Breeding Program elite selection, ‘BAM263’. Having been identified as potentially partially resistant, these selections can now be further evaluated and used as parents of new progeny populations.