bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effects of 12 Weeks of At-Home, Application-Based Exercise on Health Care Workers’ Depressive Symptoms, Burnout, and Absenteeism
Authors: Boucher Vincent Gosselin , Haight Brook L. , Hives Benjamin A. , Zumbo Bruno D. , Merali-Dewji Aaliya , Hutton Stacey , Liu Yan , Nguyen Suzanne , Beauchamp Mark R. , Black Agnes T. , Puterman Eli 
Published: August 2023

ImportanceDuring the COVID-19 pandemic, health care workers (HCWs) reported a significant decline in their mental health. One potential health behavior intervention that has been shown to be effective for improving mental health is exercise, which may be facilitated by taking advantage of mobile application (app) technologies.ObjectiveTo determine the extent to which a 12-week app-based exercise intervention can reduce depressive symptoms, burnout, and absenteeism in HCWs, compared with a wait list control condition.Design, Setting, and ParticipantsA 2-group randomized clinical trial was conducted, with participants screened from April 6 to July 4, 2022. Participants were recruited from an urban health care organization in British Columbia, Canada. Participants completed measures before randomization and every 2 weeks thereafter.InterventionsExercise condition participants were asked to complete four 20-minute sessions per week using a suite of body weight interval training, yoga, barre, and running apps. Wait-listed control participants received the apps at the end of the trial.Main Outcomes and MeasuresThe primary outcome consisted of the between-group difference in depressive symptoms measured with the 10-item Center for Epidemiological Studies Depression Scale. The secondary outcomes corresponded to 3 subfacets of burnout (cynicism, emotional exhaustion, and professional efficacy) and absenteeism. Intention-to-treat analyses were completed with multilevel structural equation modeling, and Feingold effect sizes (ES) were estimated every 2 weeks.ResultsA total of 288 participants (mean [SD] age, 41.0 [10.8] years; 246 [85.4%] women) were randomized to either exercise (n = 142) or wait list control (n = 146) conditions. Results revealed that ESs for depressive symptoms were in the small to medium range by trial’s end (week 12, −0.41 [95% CI, −0.69 to −0.13]). Significant and consistent treatment effects were revealed for 2 facets of burnout, namely cynicism (week 12 ES, −0.33 [95% CI, −0.53 to −0.13]) and emotional exhaustion (week 12 ES, −0.39 [95% CI, −0.64 to −0.14]), as well as absenteeism (r = 0.15 [95% CI, 0.03-0.26]). Adherence to the 80 minutes per week of exercise decreased from 78 (54.9%) to 33 (23.2%) participants between weeks 2 and 12.Conclusions and RelevanceAlthough exercise was able to reduce depressive symptoms among HCWs, adherence was low toward the end of the trial. Optimizing adherence to exercise programming represents an important challenge to help maintain improvements in mental health among HCWs.Trial RegistrationClinicalTrials.gov Identifier: NCT05271006
Molecular Imprinting Technology Enables Proactive Capture of Nitrogen for Boosted Ammonia Synthesis under Ambient Conditions
Authors: Liu Sisi , Wang Mengfan , He Yanzheng , Cheng Qiyang , Ji Haoqing , Huan Yunfei , Shen Xiaowei , Zhou Xi , Qian Tao , Yan Chenglin 
Published: August 2023

AbstractElectrochemical nitrogen reduction reaction (NRR) is a burgeoning field for green and sustainable ammonia production, in which numerous potential catalysts emerge endlessly. However, satisfactory performances are still not realized under practical applications due to the limited solubility and sluggish diffusion of nitrogen at the interface. Herein, molecular imprinting technology is adopted to construct an adlayer with abundant nitrogen imprints on the electrocatalyst, which is capable of selectively recognizing and proactively aggregating high‐concentrated nitrogen at the interface while hindering the access of overwhelming water simultaneously. With this favorable microenvironment, nitrogen can preferentially occupy the active surface, and the NRR equilibrium can be positively shifted to facilitate the reaction kinetics. Approximately threefold improvements in both ammonia production rate (185.7 µg h−1 mg−1) and Faradaic efficiency (72.9%) are achieved by a metal‐free catalyst compared with the bare one. It is believed that the molecular imprinting strategy should be a general method to find further applicability in numerous catalysts or even other reactions facing similar challenges.
Achieving a Record Scintillation Performance by Micro‐Doping a Heterovalent Magnetic Ion in Cs3Cu2I5 Single‐Crystal
Authors: Yao Qian , Li Jiaming , Li Xuesong , Ma Yusheng , Song Haohang , Li Zhiyuan , Wang Zungang , Tao Xutang 
Published: August 2023

AbstractAn ultrabright, ultrafast, and low‐cost ideal scintillator has been critically absent and is sorely desired in scintillation detection, but has hitherto not been found. Here, a high‐quality bulk Cs3Cu2I5:Mn single‐crystal scintillator with ultrahigh light yield (≈95 772 photons per MeV, 137Cs γ‐rays), excellent energy resolution (3.79%, 662 keV), and ultrafast scintillation decay time (3 ns, 81.5%) is reported. In mechanism, it is found that micro‐doping of a heterovalent magnetic ion (at the ppm level) can effectively modulate the luminescence kinetics of self‐trapped excitons in the scintillator. Compared with previous reports, the introduction of trace amounts of magnetic Mn2+ (≈18.6 ppm) in Cs3Cu2I5 single‐crystal shortens the scintillation decay time by several hundred times, transforming the slow decay into an ultrafast decay. Simultaneously, the light yield is also increased about three times to the highest value so far. From the comprehensive performance of the micro‐doped Cs3Cu2I5:Mn single‐crystal, these excellent scintillation properties, physical characteristics suitable for practical applications, and low‐cost advantages render this single‐crystal an ideal scintillator with great potential for commercialization.
Annealing‐Induced Dynamic Strain Evolution in Cycled High‐Ni Layered Oxides Revealing Latent Lattice Imperfections
Authors: Hyun Hyejeong , Ham Daseul , Lee Su Yong , Lim Jongwoo 
Published: August 2023

AbstractHigh‐Ni layered oxides undergo distinct chemomechanical evolution upon high‐voltage charging over 4.2 V, producing crystallographic defects and associated lattice distortions within the cathode particles. Due to the significant recovery of chemomechanical evolutions during discharging, lattice imperfections resulting from high‐voltage charging tend to remain hidden and pose challenges in their characterization at discharged states. Moreover, their impact on the structural stability and electrochemical performance of cathode materials remains elusive. In this study, synchrotron‐based X‐ray diffraction and Bragg coherent diffraction imaging (CDI) successfully detects subtle yet persistent lattice distortions in the discharged state after high‐voltage cycling. In situ Bragg CDI further reveals internal strain evolution within the particles upon mild heating, which can be correlated with hidden lattice imperfections and structural instability. Despite comparable strain distributions before heating, the particles cycled over 4.2 V show significant strain evolution and intraparticle domain deformation upon heating, whereas the particles cycled below 4.2 V release the internal strain and retain their shape. These results suggest that latent lattice imperfections formed during high‐voltage cycling can trigger detrimental microstructural degradation at high temperatures and critically deteriorate the structural stability of the high‐Ni layered oxide particles, thereby increasing the potential risk of degradation at elevated temperatures.
Resurgent prejudice: Responses to marriage equality in Australia
Authors: Betts David , Bennett James 
Published: August 2023

AbstractThis article explores the concept of resurgent prejudice in response to marriage equality in Australia. We are using the term “resurgent prejudice” to refer to examples of reactionary collective action directed towards the rainbow community in Australia, with a specific focus on efforts to undermine progressive developments in sexual citizenship. We argue that Australia is currently seeing forms of resurgent prejudice in response to the passage of marriage equality legislation in 2017 by the federal Parliament and use the highly controversial Religious Discrimination Bill of 2022 as an example to illustrate this process. By making use of interviews with members of the lesbian, gay, bisexual, transgender and queer (rainbow) community, we highlight the concerns members of the rainbow community have regarding their rights, sexual citizenship and social participation. We conclude the article by arguing that vigilance is vital in the face of resurgent prejudice to preserve social and civil rights, and that an awareness of the concept of resurgent prejudice can be used by advocates to strengthen their social movements.
Separation and thermal conversion of group components from medium‐low‐temperature coal tar pitch
Authors: Zhang Yuzhu , Zhu Yaming , Zhu Huihui , Cheng Junxia , Bai Yonghui , Lv Jun , Zhao Xuefei 
Published: August 2023

AbstractMedium‐low‐temperature coal tar pitch (MLP) is a complex mixture of varied heavy organic hydrocarbons, which was generally used as the raw materials to produce artificial carbon materials. It was great significance for the high value‐added utilization of MLP to understand the property of components of MLP. The methanol, n‐heptane, n‐butanol, and dimethyl sulfoxide were used as the solvents to separate the components from medium‐low‐temperature coal tar pitch, and the eight kinds of components (include four kinds of solubles and four kinds of insolubles) were obtained after solvent separation. In addition, the liquid phase carbonization and calcination of medium‐low‐temperature coal tar pitch and its group components were carried out to obtain the corresponding pitch coke. The structural properties of components and pitch cokes have been studied in detail by FTIR, 1H‐NMR, TGA, optical microscope, scanning electron microscope, Raman spectrum, and X‐ray diffraction. The results showed that the optical microstructure of pitch coke prepared from the soluble group components of n‐heptane was mainly fibrous structure and leaflet structure, and the content can reach as 72.83%. In other words, the soluble group composition of n‐heptane was a suitable and excellent precursor for the production of needle coke. The optical microstructure of DMSOS‐C and HI‐C was only composed of fine mosaic structure, which was more suitable for the production of isotropic coke (a kind of special coke and also named as fine mosaic coke).
Synthesis, characterization, and potential application of polyurethane foam as an effective alternative for dental aspiration substrate in liquid absorption/retention and mechanical properties
Authors: Li Yongxu , Guo Fang , Wang Hairui , Cui Yongyin , Wang Cancai , Wang Qingfu , Cao Lan 
Published: August 2023

AbstractTooth extraction will leave a wound that may cause blood leakage, and the application of liquid‐absorbing hemostatic cotton pressed on the wound can play the effect of pressure to halt bleeding. Unfortunately, the loose structure of the dental absorbent hemostatic cotton causes local slag to fall. Cotton fiber will impede wound heading and possibly drop into the throat and esophagus, thus impacting the life and health of the patient. Therefore, it is of great significance to prepare a material with toughness and high liquid absorption. The polyurethane foams (PUFs) with different chain extension coefficients synthesized from polyether polyol and diphenylmethane diisocyanate (MDI) with water as the blowing agent have excellent toughness and liquid‐absorbing properties with potential applications. The hydrophilic polyethylene glycol (PEG) is introduced into the polyurethane chain segment to form a synergistic effect with the three‐dimensional foam network structure to absorb more wound exudate. The hydrophobic PUFs can be applied to wounds with less exudate and the hydrophilic PUFs can be applied to chronic wounds with more exudate. The porous structure gives the PUF a strong loading capacity and promotes the wound‐healing effect. The PUFs exhibit good liquid absorption/retention performance in both 0.9 wt% NaCl solution and DI water, especially PUF‐1.10 has an ultimate DI water absorbency of nearly 840%. According to the performance, comparison of the current market commonly used dental absorbent hemostatic cotton; PUF‐1.10 is considered a promising candidate for replacing traditional dental commercial absorbent hemostatic slag‐fall cotton in liquid absorption/retention and mechanical properties.
Self‐healable, weldable, and reprocessable castor oil‐based poly(thiourethane‐urethane) networks
Authors: Pan Xianjie , Li Jiawei , Liu Fanqi , Hu Chaoying , Zeng Yanning 
Published: August 2023

AbstractVegetable oil‐based polyurethane (PU) vitrimer is of significance for sustainable industrial development; however, development of vegetable oil‐based PU vitrimers with high mechanical properties and excellent malleability by a facile synthetic process remains a challenge. Herein, a series of versatile, self‐healable, weldable, and recyclable castor oil‐based poly(thiourethane‐urethane) networks are constructed by one‐pot reactions. Double bonds and hydroxy groups in castor oil can react with thiol in 2,2′‐(1,4‐phenylene)‐bis[4‐mercaptan‐1,3,2‐dioxaborolane] (BDB) and isocyanate in 4,4′‐diphenylmethane diisocyanate (MDI), respectively, as well as a reaction between the thiol of BDB and the isocyanate of MDI, which gives the castor oil‐based poly(thiourethane‐urethane) vitrimers. The obtained bio‐based networks are characterized by Fourier transform infrared (FTIR) and dynamic mechanical analysis (DMA) measurements. The castor oil‐based vitrimers show high thermostability (T5d > 312°C) due to the incorporation of rigid BDB and MDI with benzene group in the networks. Meanwhile, the castor oil‐based networks have been proved to possess more excellent functions in self‐healing, welding, shape memory, and reprocessing capabilities at moderate temperatures due to the dynamic boronic ester bonds. This work would be beneficial to developing of versatile vegetable oil‐based poly(thiourethane‐urethane) materials through a facile approach.
Plant‐based Biomass/Polyvinyl Alcohol Gels for Flexible Sensors
Authors: Gu Xiaochun , Cheng Haoge , Lu Xinyi , Li Rui , Ouyang Xiao , Ma Ning , Zhang Xinyue 
Published: August 2023

AbstractFlexible sensors show great application potential in wearable electronics, human‐computer interaction, medical health, bionic electronic skin and other fields. Compared with rigid sensors, hydrogel‐based devices are more flexible and biocompatible and can easily fit the skin or be implanted into the body, making them more advantageous in the field of flexible electronics. In all designs, polyvinyl alcohol (PVA) series hydrogels exhibit high mechanical strength, excellent sensitivity and fatigue resistance, which make them promising candidates for flexible electronic sensing devices. This paper has reviewed the latest progress of PVA/plant‐based biomass hydrogels in the construction of flexible sensor applications. We first briefly introduced representative plant biomass materials, including sodium alginate, phytic acid, starch, cellulose and lignin, and summarized their unique physical and chemical properties. After that, the design principles and performance indicators of hydrogel sensors are highlighted, and representative examples of PVA/plant‐based biomass hydrogel applications in wearable electronics are illustrated. Finally, the future research is briefly prospected. We hope it can promote the research of novel green flexible sensors based on PVA/biomass hydrogel.
Direct Regeneration of NCM Cathode Material with Aluminum Scraps
Authors: Jiao Binglei , Xu Panpan , Liu Yinhai , Liu Yuxuan , Wei Gaolei , Zhu Yuncheng , Liu Gangfeng , Lin Xiao , Chen Jinxing , Weng Xuefei , Ding Yimin , Di Jiangtao , Li Qingwen 
Published: August 2023

AbstractHydrothermal‐based direct regeneration of spent Li‐ion battery (LIB) cathodes has garnered tremendous attention for its simplicity and scalability. However, it is heavily reliant on manual disassembly to ensure the high purity of degraded cathode powders, and the quality of regenerated materials. In reality, degraded cathodes often contain residual components of the battery, such as binders, current collectors, and graphite particles. Thorough investigation is thus required to understand the effects of these impurities on hydrothermal‐based direct regeneration. In this study, we focus on isolating the effects of aluminum (Al) scraps on the direct regeneration process. We found that Al metal can be dissolved during the hydrothermal relithiation process. Even when the cathode material contains up to 15 wt.% Al scraps, no detrimental effects were observed on the recovered structure, chemical composition, and electrochemical performance of the regenerated cathode material. The regenerated NCM cathode can achieve a capacity of 163.68 mAh/g at 0.1 C and exhibited a high‐capacity retention of 85.58 % after cycling for 200 cycles at 0.5 C. Therefore, the hydrothermal‐based regeneration method is effective in revitalizing degraded cathode materials, even in the presence of notable Al impurity content, showing great potential for industrial applications.
Robust tracking control for uncertain fuzzy systems with time delay and external disturbances
Authors: Vijayakumar Muthusamy , Sakthivel Rathinasamy , Aravindh Dharmarajan , Anthoni Selvaraj Marshal 
Published: August 2023

AbstractIn this article, robust tracking and disturbance rejection problem for Takagi–Sugeno fuzzy systems with time delay and external disturbances are discussed. Specifically, proportional‐integral controller with an enhanced equivalent‐input‐disturbance technique is constructed to force the output trajectories to track the bounded reference input signal even in the presence of external disturbances. Further, the resulting fuzzy control system can be represented as an augmented system with state delay and uncertainties and the output tracking problem is transformed into stabilization problem of the augmented system. In the stabilization analysis, the considered fuzzy system does not share the same membership functions with the proposed control. Moreover, the delay‐dependent stabilization criteria for the addressed fuzzy system are presented in the form of linear matrix inequalities by the virtue of augmented Lyapunov–Krasovskii functional. To be specific, the symmetric matrices involved in the Lyapunov–Krasovskii functional need not be positive definite. Ultimately, three numerical examples are offered to support the validity of the established theoretical results.
Validated spectrofluorimetric and resonance Rayleigh scattering methods for determining naftidrofuryl in varied pharmaceutical samples based on its interaction with erythrosin B
Authors: Binkadem Mona Saad , AlSalem Huda Salem , Al‐Goul Soha Talal , El Hamd Mohamed A. , Oraby Mohamed , Ali Zainy Faten M. , Abdel‐Lateef Mohamed A. 
Published: August 2023

AbstractNaftidrofuryl is a vasodilator medication used for treating cerebral and peripheral vascular diseases. In this study, two spectroscopical techniques, spectrofluorimetric and resonance Rayleigh scattering (RRS), were utilized to quantify naftidrofuryl in its pharmaceutical samples. The developed methodologies in this study rely on a facile process of forming an association complex between erythrosine B reagent and naftidrofuryl under acidic conditions. The fluorimetric assay is based on the ability of naftidrofuryl to quench and decrease the native fluorescence intensity of the reagent when measured at
= 550 nm (
= 526 nm). Under similar reaction conditions, the RRS method relies on the observed amplification in the RRS spectrum of the reagent at a wavelength of 577 nm following its interaction with naftidrofuryl. The methods exhibited linearity within the ranges 0.2–1.6 μg/ml (r2 = 0.999) and 0.1–1.4 μg/ml (r2 = 0.9994), with limit of quantitation values of 0.146 and 0.099 μg/ml, and limit of detection values of 0.048 and 0.032 μg/ml, for the fluorometric and the RRS methods, respectively. Moreover, the quenching between the dye and naftidrofuryl was studied using Stern–Volmer analysis, and the methodologies were experimentally optimized and validated. Additionally, acceptable recoveries were achieved when the procedures were applied to determine naftidrofuryl in pharmaceutical samples.
4‐Azido‐7‐nitrobenzoxadiazole as innovative clickable fluorescence probe for trace and selective quantification of ethinylestradiol in human plasma
Authors: Aref Heba A. , Salama Ismail , Aboukhatwa Shaimaa Mohamed , Helal Mohamed A. , kishk Safaa M. , Elgawish Mohamed Saleh 
Published: August 2023

AbstractQuantification of ethinylestradiol (EE) in biological matrices is challenging as it is a very potent drug with a very low Cmax (75 pg.ml−1). Despite the high sensitivity of fluorometric methods, the detection of EE was confined because its structure exhibited very limited fluorescence. Therefore, it must be derivatized first using a fluorogenic agent to produce a more potent fluorescence derivative to achieve the desired ultrasensitive bioanalysis. Here, for the first time, we proposed a promising click fluorescent probe, 4‐azido‐7‐nitrobenzoxadiazole (NBD‐AZ) to react with the alkyne group of EE, with the help of copper sulphate and l‐ascorbic acid to give a highly fluorescent and stable 1,2,3‐triazole derivative. Density functional theory calculation revealed how the triazole formation affects the quantum yield and fluorescence of click reaction product when compared with NBD‐AZ. The resulting triazole exhibited a strong signal at a wavelength of 540 nm after excitation at 470 nm. Reaction parameters impacting the intensity of fluorescence were cautiously studied and optimized. The suggested approach has shown outstanding performance, high linearity (25–300 pg.ml−1) and a low detection limit of 7.5 pg.ml−1. The enhanced sensitivity and selectivity were exploited for analyzing EE in plasma using liquid–liquid extraction for samples cleaning up without interference from any biological components and with a mean % recovery of 100.13 ± 0.39. Accuracy, sensitivity, selectivity, simplicity, and cost–effectiveness make this approach a convincing, promising, and appealing alternative to the reported analytical methods for EE bioanalysis in different matrices.