bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tailoring polyimide composites with low friction and wear at high temperatures
Authors: Duan Chunjian , Gao Chuanping , Li Song , Yang Rui , Yang Zenghui , Zhang Yaoming , Tao Liming , Zhang Xinrui , Wang Qihua , Wang Tingmei 
Published: October 2021

AbstractIn this article, thermosetting polyimide (TPI) composites based on two ideal ingredients (graphite/graphene‐like carbon nitride, g‐C3N4) were designed with different fibers and their tribological performance was comprehensively investigated at different high temperatures. It was found that the synergistic effect between solid lubricants graphite blended with g‐C3N4 and reinforced fibers on friction and wear performance. Extremely lower friction and wear behavior of TPI composite is attained with aramid pulps (APs) at high temperatures. More importantly, an obvious transition of wear rate and friction took place with aramid pulps under 200°C. When the cross‐sections of the transfer films were analyzed using focused ion beam transmission electron microscopy (FIB‐TEM) and X‐ray photoelectron spectroscopy (XPS), it was found that graphite and g‐C3N4 combined with APs led to simultaneous improvement in load‐carrying capability of TPI matrix and durability of tribofilms subjected to complex physical and chemical reaction. Our work discloses a route for developing the TPI composite exposed to high temperatures with extremely lower friction and wear rate.
Thermal and dielectric properties of two‐dimensional layered MXene (Ti3C2Tx) filled linear low‐density polyethylene composites
Authors: Jena Dipika priyadarsini , Anwar Shahid , Parida R. K. , Parida B. N. , Nayak Nimai C. 
Published: October 2021

AbstractExploring a new material MXene‐based polymer composite with high‐dielectric constant and low‐dielectric loss is important because of their potential applications in modern electronics and power systems. The two‐dimensional layered Ti3C2Tx(MXene)/linear low‐density polyethylene (LLDPE) composite have been fabricated via the solution casting method in the weight ratio of 1 to 10 of Ti3C2Txto the total weight of the polymer matrix. The formation of Ti3C2Tx filled LLDPE composite is revealed by the X‐ray diffraction, Field Emission Scanning Electron Microscope (FESEM), Fourier‐transform infrared, differential scanning calorimetry, and thermogravimetric analysis investigations. The room temperature transport behavior of the composites was studied by impedance spectroscopy technique within the frequency range of 5 Hz–5 MHz. The composites show significantly improved real dielectric permittivity of and low‐dielectric dissipation loss of the composite (maximum ε' = 9.35 × 103 with tan δ = 0.48 at 5 Hz at 25°C) at 5 phr of Ti3C2Tx loading. This work gives an auspicious idea to build polymer films with improved dielectric permittivity and low‐loss tangent for potential application in flexible electronic materials.
Efficacy and safety of acupuncture in the treatment of depression: A systematic review of clinical research
Authors: Zhang Zixuan , Li Shaoyuan , Meng Hong , Wang Yifei , Zhang Yue , Wu Mozheng , Chen Yu , Rong Peijing , Wang Yu 
Published: October 2021

AbstractAs a common mental disorder, depression is one of the leading causes of disability around the world. Clinical studies have shown that acupuncture is an effective therapy without obvious side effects compared to limited efficacy and adverse reactions of drug therapy, cognitive behavioral therapy, and neuromodulation technology in treating depression. The objective of this review is to systematically evaluate whether acupuncture therapies for depression are safe and effective in order to provide a high‐quality reference for clinical trials of acupuncture. A systematic search of the literature was carried out through bibliographic search engine PubMed. Subsequently, the study design, intervention methods, control group, results, and safety of acupuncture were analyzed. The results showed that acupuncture as an adjunct to antidepressants or as a single treatment can exert a positive impact on patients' depressive symptoms. Compared with antidepressants, acupuncture has the advantages of fast onset and long‐term efficacy in the treatment of depression, and can enhance the efficacy of antidepressants. Moreover, the efficacy and safety of acupuncture in the treatment of depression maybe related to the qualification of the acupuncturist, the selection of acupoints, and intervention measures.
The effects of simulated interruptions on mobile search tasks
Authors: Hoeber Orland , Harvey Morgan , Dewan Sagar Shaheed Ahmed , Pointon Matthew 
Published: October 2021

AbstractWhile it is clear that using a mobile device can interrupt real‐world activities such as walking or driving, the effects of interruptions on mobile device use have been under‐studied. We are particularly interested in how the ambient distraction of walking while using a mobile device, combined with the occurrence of simulated interruptions of different levels of cognitive complexity, affect web search activities. We have established an experimental design to study how the degree of cognitive complexity of simulated interruptions influences both objective and subjective search task performance. In a controlled laboratory study (n = 27), quantitative and qualitative data were collected on mobile search performance, perceptions of the interruptions, and how participants reacted to the interruptions, using a custom mobile eye‐tracking app, a questionnaire, and observations. As expected, more cognitively complex interruptions resulted in increased overall task completion times and higher perceived impacts. Interestingly, the effect on the resumption lag or the actual search performance was not significant, showing the resiliency of people to resume their tasks after an interruption. Implications from this study enhance our understanding of how interruptions objectively and subjectively affect search task performance, motivating the need for providing explicit mobile search support to enable recovery from interruptions.
Prognostic impact of proton pump inhibitors for immunotherapy in advanced urothelial carcinoma
Authors: Okuyama Yoshiharu , Hatakeyama Shingo , Numakura Kazuyuki , Narita Takuma , Tanaka Toshikazu , Miura Yuki , Sasaki Daichi , Noro Daisuke , Tokui Noriko , Okamoto Teppei , Yamamoto Hayato , Narita Shintaro , Yoneyama Takahiro , Hashimoto Yasuhiro , Habuchi Tomonori , Ohyama Chikara 
Published: October 2021

AbstractObjectiveTo evaluate the effects of the concomitant use of proton pump inhibitors (PPIs) and/or antibiotics (Abs) on oncological outcomes in patients with advanced urothelial carcinoma.Patients and methodsWe retrospectively evaluated 155 patients with advanced urothelial carcinoma who were treated with immune checkpoint inhibitors (ICIs) between August 2015 and April 2021. The concomitant use of PPI or Abs was defined as any PPI or Abs administered within 30 days before ICI initiation and during ICI therapy. The primary outcomes were the effect of PPI and/or Abs use on the objective response rate (ORR) and immune‐related adverse events (irAEs). The secondary outcomes were the effects of PPI and/or Abs use on progression‐free survival (PFS) and overall survival (OS) after ICI therapy analyzed using the inverse probability of treatment weighting‐adjusted Cox regression analysis.ResultsOf the 155 patients enrolled in the study, 99 (64%) were PPI users and 56 (36%) Abs users. PPI users were associated with a significantly poorer ORR than non‐PPI users (41% vs. 20%, respectively), whereas Abs use was not significantly associated with changes in ORR. The rate of irAEs was not significantly associated with the use of PPIs or Abs. Multivariate inverse probability of treatment weighting‐adjusted Cox regression analysis revealed significantly poorer PFS and OS in PPI users than in non‐PPI users, whereas Abs use was not associated with poorer outcomes.ConclusionThe concomitant use of PPI may adversely affect oncological outcomes in patients with locally advanced or metastatic urothelial carcinoma treated with ICI therapy.
Teaching behavior analysts to create multiple baseline graphs using SigmaPlot
Authors: Cihon Joseph H. , Ferguson Julia L. , Milne Christine M. , Leaf Justin B. 
Published: October 2021

AbstractThe development and visual inspection of graphical representations of single subject designs is a hallmark of applied behavior analysis. Much of the research on training individuals to develop single subject design graphs has involved a limited number of graphing programs (i.e., Microsoft Excel and Prism). Many graphing programs require task analyses specific to their user environment (e.g., separating data from different conditions in different columns), which may decrease the likelihood of generalization of the results of previous studies to other graphing programs (e.g., SigmaPlot). In the present study, we have evaluated the effectiveness of a video tutorial for training behavior analysts to create multiple baseline across participants graphs using SigmaPlot, which includes the inputting of data. The effectiveness of the video tutorial was evaluated using a multiple baseline design. For two of the participants, the video tutorial alone resulted in mastery level performance. The third participant required feedback before reaching mastery level performance. All three participants demonstrated generalization to a different data set and performance maintained following a week of no intervention. Social validity data indicates that participants found the skill, training, and results to be important, enjoyable, and acceptable.
Antecedents of absorptive capacity in the development of circular economy business models of small and medium enterprises
Authors: Marrucci Luca , Iannone Fabio , Daddi Tiberio , Iraldo Fabio 
Published: October 2021

AbstractMost firms, especially small and medium enterprises (SMEs), find it difficult to integrate circular economy strategies within their business models. Moreover, there is a lack of research on approaches for the successful implementation of circular economies in SMEs in the field of manufacturing. To fill this gap, we investigate the antecedents of absorptive capacity in successful circular economy business cases using a qualitative multiple‐case study. Focusing on the horticultural sector, we interviewed six Italian SMEs using NVivo 12 for the analysis. The data were then classified into first‐order and second‐order categories and then sorted into absorptive capacity dimensions. Our results highlight the significant contribution provided by absorptive capacities to the circular economy in SMEs. We highlighted three antecedents for each absorptive capacity dimension and explored their key concepts. Our study contributes to the academic literature on the links between absorptive capacity and corporate sustainability by providing insights into the role of acquisition, assimilation, transformation and exploitation capabilities in the successful implementation of circular economy practices.
Fight, flight, and free will: The effect of trauma informed psychoeducation on perceived culpability and punishment for juvenile and adult offenders
Authors: Katz Rachel R. , Fondacaro Mark R. 
Published: October 2021

AbstractJustifications for punishment are generally grounded in retribution or consequentialism. Retribution is rooted in and legitimized by common sense notions of free will, claiming that offenders freely and rationally choose to commit a criminal act, and are therefore deserving of punishment. Consequentialism does not necessitate a reliance on a belief in free will, and views punishment as means to a valuable end. In recent years, neuroscientific research has challenged the notion of free will, providing one pathway for a public shift away from retribution and towards consequentialism. To date, no studies have examined whether educating participants about biopsychosocial effects of trauma that are often outside of conscious awareness may contribute to free will doubt. This study used a 2 (biopsychosocial information, neutral information) × 2 (juvenile offender, adult offender) between subjects design and measured beliefs in free will, judgments of culpability, and justifications for punishment. Results showed a main effect of trauma informed psychoeducation on free will beliefs, such that individuals who watched a trauma video had lower free will beliefs compared to individuals who watched a control video. Direct effects of trauma informed psychoeducation on sentence severity and on justifications for punishment were nonsignificant. However, mediation analyses revealed that free will beliefs had an indirect effect on the relations between trauma informed psychoeducation and perceived culpability and that perceived culpability had an indirect effect on the relations between trauma informed psychoeducation and retribution, consequentialism, and punishment severity.
Gamification tools in the learning of shipbuilding in the undergraduate marine engineering education
Authors: Leon Alejandro , Peña Marta 
Published: October 2021

AbstractThis study assesses the implementation of different gamification tools and learning complexity in the of the subject Shipbuilding Principles of the Universitat Politècnica de Catalunya · BarcelonaTech (UPC). This experience has been carried out under a triple new scenario: the virtuality due to the Covid‐19 pandemic, added to the gamified training, and the assessment carried out remotely. Both the content and the assessment of the subject have been presented using three gamification web tools (Kahoot!, Mentimeter, and Socrative) and three learning complexity (Lexicon, Comprehension, and Visual & Relationship). The content of the subject has been taught in a dynamic, entertaining, and active way. An important factor that has been taken into account was student diversity when responding to gamified elements, using different gamification tools and different learning complexity. This experience of gamification had a positive impact on student motivation, class attendance, participation, collaborative learning, and classroom climate, which is key in a scenario like the current one, with an adaptation of classes to online learning due to the pandemic. From the results obtained, it can be stated that the gamified experience, even offering a good result compared to previous academic years, did not provide a significant improvement in the overall academic performance of the students. Regarding the gamification tools, the one that presented a slight advantage over the rest was Socrative, which is based on a particular challenge without competition between peers or groups. Regarding the learning complexity, all presented a similar level of success.
Conventional versus modified delivery system technique in commissural alignment from the Evolut low‐risk CT substudy
Authors: Tang Gilbert H. L. , Sengupta Aditya , Alexis Sophia L. , Zaid Syed , Leipsic Jonathan A. , Blanke Philipp , Grubb Kendra J. , Gada Hemal , Yakubov Steven J. , Rogers Toby , Lerakis Stamatios , Khera Sahil , Adams David H. , Sharma Samin K. , Kini Annapoorna , Reardon Michael J. 
Published: October 2021

AbstractObjectivesWe assessed the impact of conventional delivery system (DS) insertion technique on “Hat‐marker” orientation/commissural alignment in patients who underwent transcatheter aortic valve replacement (TAVR) in the Evolut Low Risk Trial CT substudy versus a modified technique.BackgroundUnlike surgical aortic valve replacement, where alignment of the surgical valve commissures with native commissures can be achieved virtually 100% of the time, commissural alignment during TAVR is not achieved consistently. This may subsequently impact the feasibility of both coronary access and reintervention after TAVR.Methods“Hat‐marker” orientations during deployment were characterized as outer curve (OC), center front (CF), inner curve, and center back. Severe commissure‐to‐CA overlap was 0–20°. “Hat‐marker” orientations and CA overlap were compared to 240 patients from a single center using the modified 3‐o'clock flush port DS technique.ResultsIn the CT substudy in which conventional DS insertion was performed (flush port at 12 o'clock); 154/249 had both analyzable CT and procedural fluoroscopy to validate “Hat‐marker” to C‐tab/commissural orientation. On post‐TAVR CT, Evolut valve commissural orientation and coronary artery (CA) ostia were identified. Compared to conventional DS technique in the CT substudy, the modified technique had higher rates of “Hat‐marker” at OC/CF orientation, improved commissural alignment and reduced severe CA overlap; (left main, 14.2 vs. 27.9%; right coronary artery, 11.7 vs. 27.3% both, 5.0 vs. 13.6%; 1 or both CA, 20.8 vs. 41.6%, all p < 0.01).ConclusionsThe modified technique improved initial “Hat‐marker” orientation during Evolut deployment and resulted in better commissural alignment and reduced CA overlap.
Anastomotic stenosis of a reconstructed dissecting superior mesenteric artery aneurysm undetectable by intraoperative indocyanine green angiography: A case report
Authors: Yamashita Shigeyuki , Shibuya Kazuto , Nagao Kanetsugu , Doi Toshio , Yokoyama Shigeki , Yamashita Akio , Fukahara Kazuaki , Fujii Tsutomu , Yoshimura Naoki 
Published: October 2021

AbstractIntraoperative evaluation of blood flow using ICG angiography revealed no significant abnormality. However, the anastomotic stenosis was revealed by postoperative CT angiography; more precise intraoperative evaluation methods need to be developed.
Mineralogy and glass content of Fe‐rich fayalite slag size fractions and their effect on alkali activation and leaching of heavy metals
Authors: Adediran Adeolu , Yliniemi Juho , Illikainen Mirja 
Published: October 2021

AbstractFayalite slag (FS) is an Fe‐rich nonferrous metallurgy (CaO‐MgO‐) FeOx‐SiO2 slag originating from nickel or copper manufacturing processes, which currently is disposed to landfills or used in low‐value applications. This study investigates the mineralogy and glass content of certain sized fractions of FS and how it influences the reactivity, mechanical, and microstructural properties of the alkali‐activated materials produced. Water‐quenched granular FS was sieved into two size fractions: namely, a fine fraction (FF) with a particle size range of 0–0.5 mm and a coarse fraction (CF) with a particle size range of 1.5–2 mm. It was then milled to a similar median particle size of 10 μm to be used as a binder precursor. The reaction kinetics of each fraction was determined via thermal analysis microcalorimeter, and the microstructural evolution and chemical composition of the binder were studied using a scanning electron microscope coupled with an energy dispersive X‐ray spectroscopy. The environmental leaching behavior of both fractions before and after alkali activation was assessed according to the EN 12457‐2 standard. The results showed that both fractions consisted of fayalite, magnetite crystalline phases, and MgO‐SiO2‐FeOx (‐CaO‐Al2O3) glass phase. However, FF had a higher glass content (63 wt.%) in comparison to CF (39 wt.%), and, consequently, FF was more reactive under alkali activation, as evidenced by faster reaction kinetics, faster strength development, and improved microstructural properties. Alkali‐activated samples had differences in the chemical compositions of their binder gels at early stages, though later, their binders became increasingly homogenous and consisted of an Na‐K‐Fe‐Si gel with Mg, Ca, and Al as minor constituents in both samples. Additionally, the leaching behavior of potentially toxic metals and substances from precursors and alkali‐activated samples prepared was below the limits set for paved structures as specified by Finnish legislation.
Sechs Motoren an einem Umrichter
Authors: Mau Gunthart 
Published: October 2021

AbstractSeit über 50 Jahren stellt die Firma Märkische Faser in Premnitz unter dem Markennamen „Grisuten“ eine vielseitig einsatzbare Polyesterfaser her. Im Zuge einer grundlegenden Modernisierung erhielt der Service von SEW‐Eurodrive den Auftrag, für die Spinnpumpenstraße ein neues Antriebssystem zu konzipieren. Das Ergebnis: Höhere Produktivität, niedrigerer Energieverbrauch und eine spürbare Verbesserung der Ressourceneffizienz.
Sicherer Anlagenbetrieb durch Druckstoßuntersuchung
Authors: Höller Stefan 
Published: October 2021

AbstractTransiente Strömungsvorgänge kommen in jeder hydraulischen Anlage vor und müssen bereits in der Planung berücksichtigt werden. Sind die dabei auftretenden Belastungen nicht bekannt, sind Schäden an der Anlage und damit einhergehende Gefahren sowie Stillstandszeiten oftmals unvermeidbar.
Pumpen für Wärmeträgerölanlage einer Raffinerie
Authors: Kochenburger Nicole 
Published: October 2021

AbstractDa die Leistung der im Jahr 2007 installierten Wärmeträgerölanlage der Classen Apparatebau Wiesloch infolge von Kapazitätsausbau nicht mehr ausreichte, bestellte ein Raffineriebetreiber eine zweite Anlage. Das heiße Medium fördern hier nun Non‐Seal Pumpen von Lewa. Sie eignen sich besonders in der HT‐Ausführung mit externer Kühlflüssigkeit für die Förderung von heißen Flüssigkeiten wie dem Wärmeträgeröl. Das Öl erreicht eine Temperatur von 400°C, wobei der spezielle Aufbau Leckagen verhindert und Sicherheit für die Bediener gewährleistet.
Öl im Tanklager zuverlässig fördern
Authors: Tekneyan Mikael 
Published: October 2021

AbstractDer internationale Warenverkehr hält die Welt in Schwung. Damit Con–tainerschiffe begehrte Waren an jeden Ort auf dem Globus bringen können, versorgen Tanklager sie stets mit den nötigen Mengen Treibstoff. Bei der Betankung von Schiffen spielen effiziente Verdrängerpumpen besondere Vorteile gegenüber den häufig eingesetzten Kreiselpumpen aus. Das erfuhr auch der Betreiber eines Tanklagers in Texas: Der Wechsel auf Schraubenspindelpumpen von Netzsch erhöhte nicht nur die Zuverlässigkeit, sondern senkt auch langfristig die Energiekosten.
Identification and characterization of rostral ventromedial medulla neurons synaptically connected to the urinary bladder afferents in female rats with or without neonatal cystitis
Authors: Talluri Bhavana , Hoelzel Faith , Medda Bidyut K. , Terashvili Maia , Sanvanson Patrick , Shaker Reza , Banerjee Anjishnu , Sengupta Jyoti N. , Banerjee Banani 
Published: October 2021

AbstractThe neurons in the rostral ventromedial medulla (RVM) play a major role in pain modulation. We have previously shown that early‐life noxious bladder stimuli in rats resulted in an overall spinal GABAergic disinhibition and a long‐lasting bladder/colon sensitization when tested in adulthood. However, the neuromolecular alterations within RVM neurons in the pathophysiology of early life bladder inflammation have not been elucidated. In this study, we have identified and characterized RVM neurons that are synaptically linked to the bladder and colon and examined the effect of neonatal bladder inflammation on molecular expressions of these neurons. A transient bladder inflammation was induced by intravesicular instillation of protamine sulfate and zymosan during postnatal days 14 through 16 (P14–16) followed by pseudorabies virus PRV‐152 and PRV‐614 injections into the bladder and colon, respectively, on postnatal day P60. Tissues were examined 96 h postinoculation for serotonergic, GABAergic, and enkephalinergic expressions using in situ hybridization and/or immunohistochemistry techniques. The results revealed that > 50% of RVM neurons that are synaptically connected to the bladder (i.e., PRV‐152+) were GABAergic, 40% enkephalinergic, and about 14% expressing serotonergic marker tryptophan hydroxylase 2 (TpH2). Neonatal cystitis resulted in a significant increase in converging neurons in RVM receiving dual synaptic inputs from the bladder and colon. In addition, neonatal cystitis significantly downregulated vesicular GABA transporter (VGAT) with a concomitant increase in TpH2 expression in bladder‐linked RVM neurons, suggesting an alteration in supraspinal signaling. These alterations of synaptic connectivity and GABAergic/serotonergic expressions in RVM neurons may contribute to bladder pain modulation and cross‐organ visceral sensitivity.