bluuebunny/crossref_metadata_2025_split huggingface dataset:
Unveiling the seroprevalence of human papillomavirus in Guangdong, China: Implications for vaccination strategies
Authors: Hu Ximing , Chen Yueling , Lin Weizhao , Ruan Qianqian , Chen Huimin , Li Xinxin , Deng Yingyin , Liang Chumin , Lin Huifang , Zeng Lilian , Sun Ning , Zhao Wei , Chen Liang , Yang Ying , Sun Limei , He Jianfeng , Sun Jiufeng 
Published: September 2024

AbstractSeroepidemiological characteristics of human papillomavirus (HPV) in community residents reflect natural infection and can guide the reform of vaccination programs. A population‐based serological survey was conducted in Guangdong Province. Serum anti‐HPV IgG antibody levels were determined by an ELISA. Neutralizing antibodies against HPV6, 11, 16, and 18 were detected via a pseudovirus‐based neutralization assay (PBNA). A total of 5122 serum samples were collected from community residents, including 1989 males and 3133 females, in three cities of Guangdong Province. The rate of HPV IgG antibody positivity in females was 5.39% (95% CI: 4.6–6.2), which was greater than that in males (2.36%; 95% CI: 1.7–3.1). HPV IgG antibodies were more frequently detected in females aged 51–60 years (11.30%; 95% CI: 7.6–16.0), whereas in males, the detection increased with age and reached 4.94% (95% CI: 2.8–6.9) in the group aged ≥71 years. The seropositivity of neutralizing antibodies against HPV6 and 11 was greater than that against HPV16 and 18. The serum neutralizing antibody titers in individuals who received three doses of a vaccine were 7‐ to 12‐fold greater than those in individuals who did not receive the vaccine. The neutralizing antibody titers slightly decreased within 40 months and ranged from 0.038 to 0.057 log ED50 per month. A moderate consistency between the HPV ELISA and PBNA results was observed (Kappa score = 0.49, r = 0.249, 0.635, 0.382, and 0.466 for HPV6, 11, 16, and 18, respectively). The HPV seropositivity rate among healthy residents of Guangdong Province was found to be low among children and adolescents and to increase with age. The serum neutralizing antibody titers were significantly greater in the vaccine group than that in the control group, and this difference persisted over time, which indicated promising protection against HPV infection.
Influence of User‐Generated Content (UGC) in Social Media on the Intangible Cultural Heritage Preservation of Gen Z Tourists in the Digital Economy Era
Authors: Hua Yidi , Ding Lei , Dong Hongan , Lin Zhixuan 
Published: September 2024

ABSTRACTThis study takes the stimulus‐organism‐response (SOR) model serving as the foundation, takes tourists' perception of user‐generated content (UGC) as the stimulus, and expands it into the two parts of form perception and authenticity perception at the same time; uses the destination image and the perceived value as the organism; and views tourists' intention of intangible cultural heritage (ICH) preservation as the response. An online survey was conducted to collect data for this study, resulting in the acquisition of 567 questionnaires that met the established validity criteria. It was concluded that factual (UGC) did not have a substantial influence on the perception of the destination and its perceived value. Moreover, tourists' perception of authenticity in terms of existence positively affected both the destination image and perceived value. The findings provide a theoretical foundation for future in‐depth research and practical guidance for stakeholders in ICH tourism to improve tourists' intention to preserve ICH.
Understanding the Role of the Shopping Experience in Explaining Tourists' Perceived Value and Behavioral Intention in African Markets
Authors: Badu‐Baiden Frank , Otoo Felix Elvis , Kim Seongseop (Sam) 
Published: September 2024

ABSTRACTAlthough the tourism shopping experience is growing in volume and importance, there is a lacuna about how the experiential facets of tourism shopping shape tourists' attitudes and behaviors. Therefore, this study aims to provide a broader understanding of this, by exploring the structural relationships between tourism shopping experiences, tourism shopping value, affective attachment, and behavioral intention. Data were sourced from 500 international tourists who had shopping experiences in Ghana. Results showed that experiential facets of in‐and‐out of store ambience, product, and store policy, all significantly inform hedonic and utilitarian shopping values. Both utilitarian and hedonic values positively influenced affective attachment and behavioral intention. The results of this study have academic and practical implications, as they shed light on understanding the cognition‐affect‐behavior relationships in a tourism shopping context.
Crises and the Demand for Tourism: A Territorial Perspective
Authors: Martínez‐Roget Fidel , Rodríguez Xosé A. , Loureiro Maria L. 
Published: September 2024

ABSTRACTThis study analyzes jointly the effects of various types of crises on tourism demand in the 17 territories within Spain and how they affect distinct strands of tourism. Three very different crises are considered: the Great Recession, the Arab Spring, and the COVID‐19 pandemic. This paper proposes an objective classification of the Spanish provinces that considers the importance of tourism activity. The impacts of the crises are analyzed and compared with those obtained from a classification based on the geographical location of the provinces. We carry out the study by estimating dynamic panel data models that incorporate a generalized method of moments (GMM). The results report high significance levels for the persistence, price, and income variables. From a territorial perspective, and with the important exception of inland provinces, there are no significant differences in the variations in tourism demand. In light of these results, policy implications are discussed.
Conjugation of primary amine groups in targeted proteomics
Authors: Cai Yang 
Published: September 2024

AbstractPrimary amines, in the form of unmodified N‐terminus of peptide/protein and unmodified lysine residue, are perhaps the most important functional groups that can serve as the starting points in proteomic analysis, especially via mass spectrometry‐based approaches. A variety of multifunctional probes that conjugate primary amine groups through covalent bonds have been developed and employed to facilitate protein/protein complex characterization, including identification, quantification, structure and localization elucidation, protein–protein interaction investigation, and so forth. As an integral part of more accurate peptide quantification in targeted proteomics, isobaric stable isotope‐coded primary amine labeling approaches eventually facilitated protein/peptide characterization at the single‐cell level, paving the way for single‐cell proteomics. The development and advances in the field can be reviewed in terms of key components of a multifunctional probe: functional groups and chemistry for primary amine conjugation; hetero‐bifunctional moiety for separation/enrichment of conjugated protein/protein complex; and functionalized linker/spacer. Perspectives are primarily focused on optimizing primary amine conjugation under physiological conditions to improve characterization of native proteins, especially those associated with the surface of living cells/microorganisms.
Nonlinear frequency response analysis using MSC Nastran
Authors: Kumar Devesh , Carlson Dave , Kumar J. S. , Cao Jianming , Engelmann Bruce 
Published: September 2024

AbstractFrequency response analysis often provides a great deal of information about the system response over the entire range of operation. This can be computationally expensive if time‐domain methods are used, especially for large structural models. Presence of non‐linearity in the system makes it difficult to employ standard frequency response analysis techniques, which are linear in nature. If the system contains mild‐nonlinearities and the response of the system can be assumed to be periodic, it is possible to obtain nonlinear frequency response of the system using harmonic balance techniques. This paper presents the application of the harmonic balance method for solving nonlinear structural dynamics problems. To improve robustness of the solution and capture unstable branches, the continuation procedure technique is included along with the harmonic balance method. The method developed has been implemented in MSC Nastran SOL 128.
Should electric vehicle purchase subsidies be linked with scrappage requirements?
Authors: Ankney Kevin , Leard Benjamin 
Published: September 2024

AbstractWe build a vehicle purchase and disposal model to analyze a policy that links a new electric vehicle (EV) purchase subsidy with a used gasoline vehicle scrappage requirement. We evaluate the policy based on changes in sales, scrappage, subsidy dollars spent, and emissions reductions. We find that linking a purchase subsidy with a scrappage requirement is expected to result in fewer new EV sales and carbon dioxide emissions reductions relative to a policy without linking. Our modeling reveals that these effects are due to trade‐in vehicle eligibility requirements and opportunity costs lowering additional participation in the linked policy. However, the linked policy significantly increases used vehicle scrappage and is more progressive than the unlinked policy. We find that emissions reductions due to additional scrappage are sensitive to how remaining miles of scrapped vehicles are replaced.
Investigation of synergistic effects of polyols and cellulose‐based reinforcements on kappa‐carrageenan films
Authors: Rathore Kalpana , Gorbel B. , Shakya Kaushal , Thejaswi K. , Das Sandip , Verma Vivek 
Published: September 2024

AbstractThis study investigates the synergistic effects of the incorporation of various plasticizers and reinforcing agents on the characteristics of κ‐carrageenan (kC) film. Different plasticizers, including polyols and glycols, were used to improve elongation at break, whereas nanoclay, urea and varied forms of cellulose were used as reinforcing agents. The physicochemical and morphological properties of kappa‐carrageenan films plasticized and reinforced with various additives were quantified for their swelling behavior, mechanical strength, chemical composition, and structural features. Among the plasticizers used in the study, glycerol (30% with respect to kC) plasticized films showed better elongation properties (48.7%) as compared to the other plasticizers. In the reinforced carrageenan films, without plasticizer, oxidized bacterial cellulose demonstrated the best mechanical strength of 89.5 MPa as compared to other reinforcement agents. Moreover, 5% bacterial cellulose modified carrageenan film significantly maintained the mechanical properties (58.3 MPa) of the kC films plasticized with 30% glycerol, providing 15% elongation. The addition of glycerol to the reinforced films also influenced the water absorption and water vapor transmission rates of the polymer matrix. In addition, additives like halloysite nanoclay in plasticized carrageenan films demonstrated 16% improved barrier properties. This comprehensive analysis of different additives in κ‐carrageenan films broadens the potential for food packaging and biomedical applications.
Generalizing Treatment Effect to a Target Population Without Individual Patient Data in a Real‐World Setting
Authors: Quan Hui , Li Tong , Chen Xun , Li Gang 
Published: September 2024

ABSTRACTThe innovative use of real‐world data (RWD) can answer questions that cannot be addressed using data from randomized clinical trials (RCTs). While the sponsors of RCTs have a central database containing all individual patient data (IPD) collected from trials, analysts of RWD face a challenge: regulations on patient privacy make access to IPD from all regions logistically prohibitive. In this research, we propose a double inverse probability weighting (DIPW) approach for the analysis sponsor to estimate the population average treatment effect (PATE) for a target population without the need to access IPD. One probability weighting is for achieving comparable distributions in confounders across treatment groups; another probability weighting is for generalizing the result from a subpopulation of patients who have data on the endpoint to the whole target population. The likelihood expressions for propensity scores and the DIPW estimator of the PATE can be written to only rely on regional summary statistics that do not require IPD. Our approach hinges upon the positivity and conditional independency assumptions, prerequisites to most RWD analysis approaches. Simulations are conducted to compare the performances of the proposed method against a modified meta‐analysis and a regular meta‐analysis.
Theoretical Prediction on the Reaction of Dimeric Ca Hydride [(BDI)Ca(μ‐H)]2 With 1,3‐Cyclopentadiene to Produce [(BDI)Ca(μ‐C5H5)]2: The Decisive Role of Aromatization
Authors: Liu Nannan , Li Hongfeng 
Published: September 2024

ABSTRACTThis study explores the reaction mechanism between [(BDI)Ca(μ‐H)]2 and cyclopentadiene (C5H6). By analyzing the reaction pathways, it is found that compared with the traditional CaH/CC insertion reaction of polyenes with [(BDI)Ca(μ‐H)]2, C5H6 is more inclined to undergo a CaH/CH2 dehydrogenation reaction, resulting in more stable cyclopentadienyl complexes. The subsequent reactions also tend to continue with dehydrogenation to form dimeric complexes. The aromatization process of C5H6 is a key factor driving this reaction trend. This result provides a new perspective for understanding the catalytic behavior of calcium hydride derivatives and can help in the design and synthesis of new catalysts and functional materials based on such compounds.
MS‐SLAM: Memory‐Efficient Visual SLAM With Sliding Window Map Sparsification
Authors: Zhang Xiaoyu , Dong Jinhu , Zhang Yin , Liu Yun‐Hui 
Published: September 2024

ABSTRACTWhile most visual SLAM systems traditionally prioritize accuracy or speed, the associated memory consumption would also become a concern for robots working in large‐scale environments, primarily due to the perpetual preservation of increasing number of redundant map points. Although these redundant map points are initially constructed to ensure robust frame tracking, they contribute little once the robot moves to other locations and are primarily kept for potential loop closure. After continuous optimization, these map points are accurate and actually not all of them are essential for loop closure. Therefore, this paper proposes MS‐SLAM, a memory‐efficient visual SLAM system with map sparsification aimed at selecting only parts of useful map points to keep in the global map. In MS‐SLAM, all local map points are temporarily kept to ensure robust frame tracking and further optimization, while redundant nonlocal map points are removed through the proposed novel sliding window map sparsification, which is efficient and running concurrently with original SLAM tracking. The loop closure still operates well with the selected useful map points. Through exhaustive experiments across various scenes in both public and self‐collected data sets, MS‐SLAM has demonstrated comparable accuracy with the state‐of‐the‐art visual SLAM while significantly reducing memory consumption by over 70% in large‐scale scenes. This facilitates the scalability of visual SLAM in large‐scale environments, making it a promising solution for real‐world applications. We will release our codes at https://github.com/fishmarch/MS-SLAM.
Synthesis and Characterization of a Distinct Zinc Stannate‐Copper Metal‐Organic Framework (ZnSnO3@H3BTC‐Cu MOF): Unveiling Outstanding Photocatalytic and Antibacterial Properties
Authors: Saha Sneha , Aalam Gulshitab , Ajay  , Amir Md , Sayeed Khan Gufran , Ingole Pravin P , Wazed Ali S. 
Published: September 2024

AbstractIn the present era, a significant amount of research work is focused on eco‐friendly technologies and advanced liquid waste management strategies. Notably, industries primarily textile chemical processing sectors which are inherently involved with a wide array of dye usage, are integral focal points for these transformative endeavors. Against this backdrop, we have successfully synthesized an innovative photocatalyst with a remarkable capability to rapidly neutralize deleterious dyes within an astonishingly brief span of 4–6 minutes, facilitated by exposure to UV‐visible irradiation. Briefly, our approach entails the hydrothermal synthesis of a composite material based on zinc stannate (ZnSnO3) nanoparticles integrated with the copper‐decorated metal‐organic framework (ZnSnO3@H3BTC‐Cu MOF). The resulting material is endowed with a crystalline and porous architecture that confers a specific surface area measuring 437.25 m2 g−1, a value surpassing that of unadorned nano‐ZnSnO3 by a factor of approximately 15 (29.11 m2 g−1). Noteworthy beyond its enhanced surface features, the newly synthesized ZnSnO3@H3BTC−Cu MOF exhibits remarkable antibacterial efficacy against gram‐positiveS. aureusand gram‐negativeE. colibacterial strains. It might also be considered a stable photocatalyst to be used in wastewater treatment, as evidenced by the photoelectrochemical and photocatalytic investigation.
Vibrational Modes of Metribuzin: A Theoretical and Experimental Comparison
Authors: Pal Singh Gaurav , Sardana Neha 
Published: September 2024

AbstractPesticides are being used in unregulated and excessive amounts to increase crop yield, causing food and water contamination. Continuous consumption of these pesticides can lead to a variety of health problems, including cancer, respiratory problems, neurological disorders, and reproductive problems. Vibrational spectroscopy uses the unique vibrational modes of these chemicals to identify and quantify their composition with high sensitivity, selectivity, speed, and accuracy. Density functional theory (DFT) can accurately model the vibrational response of these pesticides. Metribuzin, with a triazinone type ring structure, is one such commercial weedicide that is widely used but has not been extensively studied in literature, especially the study of its vibrational modes is lacking. Metribuzin's Raman and infrared (IR) vibrational modes were analyzed in the present article. The calculated bond length, Raman, and IR spectra (using aug‐cc‐pVTZ B3LYP level of theory) were experimentally confirmed. All the major vibrational modes of Metribuzin were assigned. Also, the basis set comparison was performed for DFT/B3LYP method for Raman spectrum calculation of Metribuzin. The errors in wavenumber and intensity of the Raman vibrational modes for each basis set were compared. Hence, the complete study of Metribuzin's structure and vibrational modes was presented.
Cognitive reappraisal and acceptance following acute stress
Authors: Hamza Josef , Vytykačová Simona , Janšáková Katarína , Rajčáni Jakub 
Published: September 2024

AbstractEffective regulation of emotions is essential in coping with everyday stressors. Although cognitive reappraisal and acceptance are both commonly employed to downregulate negative emotions, they differ in many aspects. Their effectiveness in real‐life situations can also be influenced by prior stress or a person's trait preferences for certain emotion regulation (ER) strategies. In the present study, we compared the effectiveness of both ER strategies in a laboratory setting, while focussing on the effect of stress and trait moderators. Ninety‐eight healthy participants aged 18–40 were randomly divided into three groups with instructions to use reappraisal, acceptance, or nothing while viewing distressing pictures from the IAPS database. Half of the participants in each group underwent a laboratory stressor (socially evaluated cold pressor test) 20–30 min before the ER task. The effectiveness of ER was measured subjectively on the visual analog scale, and by measuring heart rate, skin conductance, and pupil responses. The data show that cognitive reappraisal lowered subjectively experienced negative emotion, while acceptance did not. These group differences were however not supported by psychophysiological indicators. Secondly, although the laboratory stressor elicited cortisol stress responses in our participants, we did not find any effect on ER. Furthermore, the data has not supported the moderation effect by trait reappraisal and acceptance. The present findings show that deliberate usage of ER strategies when viewing emotionally charged pictures leads to a decrease in experienced emotion. On the other hand, the effects of stress and trait moderators were not supported, therefore they may be smaller and more variable than expected.
Instructional practices for secondary social studies teachers: Describing a curricular program designed to improve language, content knowledge and literacy outcomes for emergent bilinguals
Authors: Hogan Erin , Fishstrom Sarah , Andress Tim T. , Martinez Leticia , Vaughn Sharon 
Published: September 2024

AbstractThis article describes a curricular program for use in middle school social studies classrooms that supports the development of emergent bilinguals' language, literacy skills, and acquisition of content knowledge. The program leverages four supports found to be impactful for emergent bilinguals: 1) foregrounding content to increase students' readiness to learn language through content instruction; 2) making meaningful and relevant connections to students' cultural and linguistic backgrounds in complex disciplinary texts and activities; 3) engaging students in discussions and collaborations through heterogeneous teams that include students with a variety of linguistic proficiencies; and 4) using formative assessment to increase feedback and instructional responsiveness. The article presents illustrative examples of how these supports were embedded within a unit on ancient Greece and offers guidance on how middle school social studies teachers can incorporate supports in their units.
Temporoorbital pulse rate can be obtained in ball pythons (Python regius) of any size and age and agrees with heart rate
Authors: Ito Mio , Levitskiy Alexander A. , Di Girolamo Nicola 
Published: September 2024

ABSTRACTBackgroundCurrently, a standardised technique to obtain pulse rate in reptiles is lacking. We evaluated the feasibility of obtaining a temporoorbital pulse rate in ball pythons of various ages and sizes and whether it agreed with the heart rate.MethodsHeart rate and pulse rate were recorded in 40 ball pythons (Python regius) weighing between 0.05 and 2.2 kg using a standard veterinary ultrasonic Doppler flow detector. The temporoorbital pulse rate was obtained on the dorsal aspect of the head at the level of the temporoorbital artery. Each measurement was performed in a randomised fashion by two operators, who were blinded to each other's results.ResultsPulse rate and heart rate were successfully obtained for all snakes. The median heart rate was 60 beats per minute (bpm) (range 48‒88 bpm), and the median pulse rate was 60 bpm (range 48‒88 bpm). The mean difference between the pulse rate and heart rate was 1.2 beats (95% limits of agreement: ‒10.6 to 13.0). When pulse rate and heart rate were measured at the same time, they were synchronous.LimitationsOnly healthy snakes were included.ConclusionsTemporoorbital pulse rates can be easily obtained in ball pythons of any size. This novel method to assess peripheral pulse allows for a more complete cardiovascular evaluation in this species.