bluuebunny/crossref_metadata_2025_split huggingface dataset:
The investigation of tribological properties of PAI/PI‐EPN polymer coating filled with WS2 and SiC at low temperatures
Authors: Wang Yongzhuang , Cao Jun , Zhang Xiuli , Wang Xiaocui , Long Qihua , Xu Hailiang , Zhu Minhao 
Published: July 2024

AbstractTo improve the tribological properties of polar crane copper alloy bearings to withstand wear under dry sliding wear and grease lubrication at low temperatures, three kinds of coating materials modified by incorporating WS2 and SiC into polyamide‐imide/polyimide‐phenolic epoxy resin were designed. These composite coatings were sprayed on the surfaces of CuPb22.5Sn2.5 copper alloys by liquid spraying technique. Firstly, the tribological experiments were performed with three different coatings. Then, nanoindentation testing and wear morphology analysis were conducted. The results show that the hardness of the composite coatings decreases with the increase of WS2. As the content of WS2 increases, the coefficients of friction (CoFs) of coatings decreases under dry sliding wear. The S2 coating filled with 7.5 wt% WS2 exhibits the lowest wear rate and the best wear resistance under low temperature and dry sliding wear. The coatings form a lubricating film on the worn surface under dry sliding wear at −70°C, improving the wear resistance of the coatings. The primary wear mechanisms are adhesive wear and fatigue wear. The wear rates of the coatings increase with the increasing content of WS2 under low‐temperature grease lubrication. The S1 coating filled with 5.0 wt% WS2 exhibits the lowest wear. The S1 coating demonstrates a CoF of 0.07 and a wear rate of 6.5 × 10−6 mm3N−1 m−1 at 0°C, showing excellent friction‐reducing and wear‐resistant properties. The primary wear mechanism is adhesive wear. The wear mechanisms of polymer coatings are closely related to temperature. The dominant wear mechanisms transfer from abrasive wear to adhesive wear and fatigue wear under dry sliding wear and decreasing temperature. The wear mechanisms transfer from predominantly adhesive and abrasive wear to adhesive wear, fatigue wear, and abrasive wear under grease lubrication. The hardness of the coatings and the behavior of the polymer at various low temperatures are the primary factors that affect the differing wear mechanisms.
Restabilization of perturbed Boolean control networks based on absorbable attractors
Authors: Hou Yanfang , Tian Hui , Wang Chengmao 
Published: July 2024

AbstractThe paper studies the restabilization problem of Boolean control networks (BCNs) under the function perturbation. First, an important concept‐absorbable attractor is proposed for BCNs. Then, by using this concept, a necessary and sufficient restabilizability criterion is established. This criterion can be used to check whether the perturbed BCN can be restabilized to its original state by modifying the minimum number of parameters in the old controller. Finally, a constructive fine‐tuning method is given to modify the old controller. Compared with the existing results, which can only solve the problem of single column function perturbation, our results are more powerful since they are applicable not only to the single column function perturbation problem but also to the case of multiple columns. Finally, two examples are employed to show the effectiveness of our results.
Combinatorial metabolic engineering of Bacillus subtilis for menaquinone‐7 biosynthesis
Authors: Sun Xian , Bi Xinyu , Li Guyue , Cui Shixiu , Xu Xianhao , Liu Yanfeng , Li Jianghua , Du Guocheng , Lv Xueqin , Liu Long 
Published: July 2024

AbstractMenaquinone‐7 (MK‐7), a form of vitamin K2, supports bone health and prevents arterial calcification. Microbial fermentation for MK‐7 production has attracted widespread attention because of its low cost and short production cycles. However, insufficient substrate supply, unbalanced precursor synthesis, and low catalytic efficiency of key enzymes severely limited the efficiency of MK‐7 synthesis. In this study, utilizing Bacillus subtilis BSAT01 (with an initial MK‐7 titer of 231.0 mg/L) obtained in our previous study, the glycerol metabolism pathway was first enhanced to increase the 3‐deoxy‐arabino‐heptulonate 7‐phosphate (DHAP) supply, which led to an increase in MK‐7 titer to 259.7 mg/L. Subsequently, a combination of knockout strategies predicted by the genome‐scale metabolic model etiBsu1209 was employed to optimize the central carbon metabolism pathway, and the resulting strain showed an increase in MK‐7 production from 259.7 to 318.3 mg/L. Finally, model predictions revealed the methylerythritol phosphate pathway as the major restriction pathway, and the pathway flux was increased by heterologous introduction (Introduction of Dxs derived from Escherichia coli) and fusion expression (End‐to‐end fusion of two enzymes by a linker peptide), resulting in a strain with a titer of 451.0 mg/L in a shake flask and 474.0 mg/L in a 50‐L bioreactor. This study achieved efficient MK‐7 synthesis in B. subtilis, laying the foundation for large‐scale MK‐7 bioproduction.
Climate reporting in the fast lane? The impact of corporate governance on the disclosure of climate‐related risks and opportunities
Authors: Gebhardt Maria , Schneider Anne , Siedler Florian , Ottenstein Philipp , Zülch Henning 
Published: July 2024

AbstractClimate‐related issues have become increasingly relevant, as reflected in current political and academic discourse. This development is also reflected in investors' capital allocation decisions and their demand for climate‐related information. Considering the recommendations of the Task Force on Climate‐related Financial Disclosures (TCFD), we first investigate the climate‐related disclosure quality of listed German firms. We use self‐constructed scoring models based on the TCFD recommendations to measure disclosure quality. Second, we use regression analysis to investigate whether corporate governance can explain climate‐related disclosure quality. The results indicate that disclosure quality is heavily dispersed across firms, with risk disclosure being better than disclosure of opportunities. Corporate governance factors exert distinct but mostly weak influence on climate‐related disclosure quality and that institutional ownership promotes climate‐related disclosure quality. We show several implications for research and practice and highlight the relevance for firms to implement a comprehensive approach to communicating climate‐related issues.
Pandemic‐led brand switch: Consumer stickiness for private‐label brands
Authors: Mookherjee Satadruta , Malampallayil Savisesh , Mohanty Smaraki , Tran Nhu X. 
Published: July 2024

AbstractThe onset of COVID‐19 resulted in unprecedented shopping behavior, leading to product scarcity and empty store shelves, making consumers shift towards purchasing private‐label store brands. In this research, we aim to understand the role of the pandemic in influencing the preference for private‐label products. Using secondary data, we offer longitudinal evidence that although national and private‐label brand sales increased equally during the peak pandemic period, the growth rate for national brands subsided in the post‐pandemic years, but that of private‐label brands sustained its upward trend. Further, using experimental design, we test this phenomenon and find that greater availability of private‐label brands during the pandemic resulted in higher perceived brand‐helpfulness, which evoked brand attachment and persuaded the customers to continue repurchasing. Our research thus contributes by providing unique insights that can help brands strategize effectively and ensure continued brand attachment in the post‐pandemic period, and additionally, help brands retain customers and foster loyalty during crises.
Extravascular protrusion of the Alterra adaptive prestent identified on surveillance computed tomography imaging
Authors: Gillespie Matthew J. , Maschietto Nicola , Aboulhosn Jamil A. , Balzer David T. , Qureshi Athar M. , McElhinney Doff B. 
Published: July 2024

AbstractBackgroundThe Alterra adaptive prestent is a novel self‐expanding device designed to provide a landing zone for the 29 mm SAPIEN 3 valve to treat pulmonary regurgitation in patients with a right ventricular outflow tract that is too large for a balloon expandable valve alone. The mechanism of fixation for the Alterra prestent is radial force from the self‐expanding stent frame, combined with a unique set of flared “tines” that protrude from both ends of the stent.Aims, Methods, and ResultsIn this report, we describe 6 patients who underwent uncomplicated transcatheter pulmonary valve replacement with an Alterra adaptive prestent and SAPIEN 3 valve and had surveillance chest computed tomography (CT) scans performed 1 day to 21 months after implant. In each patient, the CT scan demonstrated extravascular extension of a portion of the Alterra prestent, without clinical sequelae, but with extension into the ascending aorta in 1 patient and contact with the ascending aorta, left pulmonary vein, or left atrial appendage in 3 others.ConclusionsSurveillance CT imaging shows that the Alterra prestent can perforate the pulmonary artery and/or right ventricle. Although no sequelae were seen in these patients, prestent perforation has the potential to be clinically important. Implanters should be aware of this finding and its potential implications. As experience with the Alterra prestent grows, it will be important to further define the risk factors, incidence, and implications of this phenomenon.
Spontaneous coronary artery dissection in the context of tamoxifen; Is there any correlation?
Authors: Saffar Homina , Abdan Leili , Abdan Zahra , Hekmat Hamidreza , Amirzadegan Alireza , Omidi Negar 
Published: July 2024

Key Clinical MessageClinicians should consider spontaneous coronary artery dissection in middle‐aged women presenting with acute coronary syndromes and a history of tamoxifen use, to ensure timely diagnosis, and appropriate management strategies.AbstractSpontaneous coronary artery dissection (SCAD) is characterized by a non‐iatrogenic, nontraumatic separation of the coronary artery wall, contributing to acute coronary syndromes (ACS), and sudden cardiac death. SCAD predominantly affects the left anterior descending artery (LAD) and is frequently observed in middle‐aged women. This condition has been associated with cancer treatment and exogenous hormones exposure. The diagnostic gold standard remains coronary angiography, management strategies include conservative measures, percutaneous coronary intervention (PCI), and coronary artery bypass graft surgery (CABG). We describe a case of a 54‐year‐old woman with breast cancer and a history of tamoxifen use, presenting with SCAD in the posterolateral branch (PLB) originating from the left circumflex artery (LCX), and right coronary artery (RCA) and managed conservatively.
Separation of Brick Particles from the Sand Fraction of Masonry Construction and Demolition Waste on the Basis of Their Magnetic Susceptibility
Authors: Lipowsky Anett , Götz Jenny , Müller Anette , Palzer Ulrich 
Published: July 2024

AbstractIn the processing of construction waste, the sorting of the delivered mixtures is one of the decisive process steps in order to produce recyclates that can be reused. In the fine‐grain range, there is a lack of suitable processes for this. A procedure that has not been investigated so far is to separate concrete‐mortar‐brick mixtures on the basis of the magnetic susceptibility. Based on measurements of the susceptibility, sorting experiments were carried out using a rare earth roll magnetic separator. The positive results of the experiments described here call for further investigation of the performance of the sorting method.
Case Study: Flipped Classroom with Gamification in a Hybrid Fluid Mechanics Course
Authors: Boettcher Konrad E. R. , Fischer Michael‐David , Hellmich Justus 
Published: July 2024

AbstractA fluid mechanics course in process engineering designed according to the students’ wishes mixes lecture and exercise in co‐teaching and flipped‐classroom elements with gamification. The effectiveness increases as the number of points achieved in the exam increases by 31.9 % compared to the average of the four previous years. The withdrawal rate drops from 54.8 % to 17.4 % and the failure rate from 38.7 % to 23.7 %, which enhances efficiency. The students’ self‐report shows a better preparation to the course sessions, but they do not feel stressed much additionally. About 80 % of the initially attending students participate at the end of the course.
Cytotoxic Activity of Distinct Families of Phosphonic Acid Derivatives – A Chemocentric Approach to Assess Their Molecular Action
Authors: Dormán György , Szalai Zsuzsanna , Keglevich György 
Published: July 2024

AbstractPhosphorus containing small molecules (particularly α‐aminophosphonates, α‐hydroxyphosphonates and bisphosphonates) represent a unique chemical space among the biologically active compounds. We selected 35 diverse compounds that showed remarkable cytotoxicity effects on various cancer cell lines. However, the exact mechanism of action often requires further investigations, in vitro or in silico target identification even though many target‐based activity data were gathered for the above cluster of compounds. In our conceptual account, we offer a systematic in silico analysis between the cytotoxicity, cell lines, their (over)expressed protein targets associated with malignant diseases, and the activity data on protein targets already reported for those compounds in the hope that we gain better understanding and explanation, what is behind their cytotoxic behavior.
Genetic variation for grain iron and zinc concentration in the US sorghum [Sorghum bicolor (L.) Moench] association panel
Authors: Djanaguiraman M. , Vimala K. , Sofi P. A. , Perumal R. , Prasad P. V. V. 
Published: July 2024

AbstractIron (Fe) and zinc (Zn) are important nutritional traits that determine the cultivar value of grain sorghum [Sorghum bicolor (L.) Moench]. The present study was undertaken to characterize the natural variation in landraces and accessions of sorghum association panel for grain Fe and Zn and to understand the nature of the association between grain Fe and Zn concentration and grain yield. Grain Fe and Zn were quantified from seeds harvested from rainfed and irrigated field experiments. The results indicated significant (p < 0.05) variability in grain concentration of grain Fe and Zn among sorghum races and accessions. The highest concentrations for Fe and Zn were observed in elite breeding lines followed by the races durra and caudatum but with no significant impact between irrigated and rainfed growing environments. Trait association revealed a significant positive correlation between seed yield and iron (r = 0.40) and zinc (r = 0.13). Several accessions with desirable combinations of yield, iron, and zinc were identified. The accessions, SC1080 (90.5 mg kg−1) and RTx437 (37.8 mg kg−1), had the highest concentration of grain Fe and Zn, respectively. The accession SC1085 had a higher grain yield (50 g panicle−1) and high Fe concentration (80.3 mg kg−1), and Macia had a higher grain yield (43.0 g panicle−1) and high Zn concentration (29.5 mg kg−1).
Board gender diversity and ESG disclosure: The moderating role of audit committee
Authors: Ma Yiming , Ahmad Muhammad Ishfaq , Torelli Riccardo 
Published: July 2024

AbstractThis study analyzed whether the audit committee moderates the relationship between gender diversity and environmental, social, and governance (ESG) disclosures among Chinese listed firms. Data on energy sector companies from 2012 to 2022 were taken from the Chinese Stock Market and Accounting Research database to test the moderation model. Gender diversity was measured as the percentage of females on boards using the Blau and Shannon indices. Board gender diversity directly and positively affected both the overall and individual dimensions of ESG disclosures. Furthermore, the audit committee moderated the relationship between gender diversity and ESG disclosure. This study provides valuable insights for managers and investors to evaluate the role of gender diversity and audit committees in ESG disclosures and facilitates them in making better decisions. Furthermore, regulators can revise corporate governance codes to promote more female inclusion not only on corporate boards but also on subcommittees to protect the rights of stakeholders.
Exploring temporal activity of dholes, their prey, and competitors in East Java, Indonesia
Authors: Havmøller Linnea Worsøe , Wahyudi Hariyawan Agung , Iqbal Mochammad , Nawangsari Ventie Angelia , Setiawan Johan , Chandradewi Desy Satya , Møller Peter Rask , Træholt Carl , Havmøller Rasmus Worsøe 
Published: July 2024

AbstractDholes (Cuon alpinus) are endangered large carnivores found in scattered populations in Asia. One of the main threats to dholes is the decreasing prey availability throughout their distribution range. In the present study, we used camera trap data collected over 6 years to investigate the temporal activity patterns of dholes and their putative prey species in Baluran National Park in Java, Indonesia. We also explored the overlap in activity between dholes and the park's other remaining large carnivore the Javan leopard (Panthera pardus melas), as well as humans. Furthermore, we investigated potential differences in activity patterns between dholes in packs and dholes roaming in pairs or alone. We found a high temporal overlap between dholes and their wild ungulate prey species (ranging from Δ = 0.66–0.90), with the lowest overlap observed between dholes and bantengs (Bos javanicus) (Δ = 0.66), and the highest between dholes and muntjacs (Muntiacus muntjak) (Δ = 0.90). A very low overlap was found between dholes and domestic cattle (Bos indicus) (Δ = 0.27) whereas a moderately high overlap was found between dholes and leopards (Δ = 0.70) and dholes and humans (Δ = 0.62). We found a significant difference in activity patterns between dholes in packs and dholes roaming alone or in pairs (Δ = 0.78, p = .01). Single/pairs of dholes were more active both during the day and at night, whereas packs were predominantly active around sunrise and sunset. The high overlap with humans potentially has a negative effect on dhole activity, particularly for dispersing individuals, and the low overlap with domestic species questions the extent to which dholes are considered to predate on them.
Describing endosymbiont–host interactions within the parasitism–mutualism continuum
Authors: Hoffmann Ary A. , Cooper Brandon S. 
Published: July 2024

AbstractEndosymbionts are widespread in arthropods, living in host cells with effects that extend from parasitic to mutualistic. Newly acquired endosymbionts tend to be parasitic, but vertical transmission favors coevolution toward mutualism, with hosts sometimes developing dependency. Endosymbionts negatively affecting host fitness may still spread by impacting host reproductive traits, referred to as reproductive “manipulation,” although costs for hosts are often assumed rather than demonstrated. For cytoplasmic incompatibility (CI) that involves endosymbiont‐mediated embryo death, theory predicts directional shifts away from “manipulation” toward reduced CI strength; moreover, CI‐causing endosymbionts need to increase host fitness to initially spread. In nature, endosymbiont–host interactions and dynamics are complex, often depending on environmental conditions and evolutionary history. We advocate for capturing this complexity through appropriate datasets, rather than relying on terms like “manipulation.” Such imprecision can lead to the misclassification of endosymbionts along the parasitism–mutualism continuum.
Consumer animal welfare and healthy perception of fresh sausages’ fiber fat replaced and elaborated with meat from non‐castrated male pigs
Authors: Egea Macarena , Garrido M. Dolores , Font‐i‐Furnols Maria , Panella‐Riera Nuria , Linares M. Belén , Peñaranda Irene 
Published: July 2024

AbstractAlthough replacement of fat with fiber is a good strategy to avoid boar taint on high‐fat content products, as sausages, the final purchase intention is related to other external factors such as welfare and healthiness. So, the aim of this study was to evaluate the consumers' perception of sausages with fat replaced by fiber, elaborated with meat from non‐castrated male pigs, and to determine the influence of the consumers' habits and demographic parameters on their beliefs related to pig castration. An online survey was carried out. A total of 131 consumers answered a questionnaire about habits and beliefs related to meat and meat product issues. Subsequently, they evaluated four images of labeled products (castrated–not castrated/normal–reduced‐fat/traditional–high fiber content) with the Check‐all‐that‐apply (CATA) test. In all, 87.7% of meat consumers perceived meat products as positive, although 71% trimmed the fat previous consumption. In a 9‐point agreement scale, “Animal welfare worries me” obtained 7.5 and “the castration without anaesthesia should not be performed” 7.4. There was a higher grade of agreement with “castration of pigs justification to improve smell a flavour” in primary education level and in rural residence (p < .05). Sausages from castrated animals were perceived as fatty, juicy, appetizing, and animal cruelty. Reduced‐fat and rich/high fiber sausages were not associated with “healthy” but with “expensive” and “unpleasant.” Although reduced‐fat entire male pork sausages with vegetable fiber could be a better option for marketing uncastrated male pork, they will need more than fiber claims to be associated with healthy products and the consumer should be previously informed if he could appreciate the meaning of castration labeling.
Development and validation of a technical skill score for internal version and total breech extraction of the second twin: An interventional prospective study
Authors: Tuil Ilana , Gauci Pierre‐Alexis 
Published: July 2024

AbstractObjectiveTo develop and test an Objective Structured Assessment of Technical Skills (OSATS) score for the internal version and total breech extraction of the second twin if in a non‐engaged cephalic position.Materials and MethodsThis prospective interventional study took place in a tertiary obstetrics department in France. An objective scoring system was developed, and a standardized simulation scenario was set up. Score evaluation was blinded and analyzed according to group and number of past successful vaginal twin deliveries in real life. A satisfaction evaluation was performed, based on the “Student Design Scale” questionnaire.ResultsSimulation was performed on 33 participants in three groups: novice group (15 first‐ and second‐year residents), intermediate group (11 third‐ to sixth‐year residents), and expert group (seven senior obstetricians). The total score obtained by experts was higher than that of the intermediate group (P = 0.001), which was higher than that of the novice group (P < 0.001). In the intermediate group, no correlation was found between OSATS score and number of past successful vaginal twin deliveries. Participants' satisfaction was excellent.ConclusionThe OSATS score developed was reliable and valid to evaluate an internal version and a total breech extraction of the second twin, and to differentiate novice, intermediate, and expert practitioners.