bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mitigating upstream disruptions: Effects of extended inventories in first‐ and second‐tier suppliers
Authors: Durach Christian F. , Peers Yuri , Wang Yimin , Repasky Tomas 
Published: December 2024

AbstractThis study examines how inventory slack at first‐ and second‐tier suppliers influences buyer performance following an upstream disruption event. We analyze secondary data from buyer, first‐tier, and second‐tier triads impacted at their upper end by the 2011 Great East Japan Earthquake. By matching buyers in affected triads with similar, largely unaffected firms, we assess post‐event performance in relation to triad inventory slack. Results show: (a) inventory slack at the first and second tiers supports buyer performance after the disruption; (b) first‐tier inventory slack has a greater impact; (c) buyers with less inventory slack can extract more value from their chains' inventories compared to those with more slack; and (d) first‐tier suppliers occupy a pivotal role in bridging the second‐tier inventories to the buyer. When competition for the first‐tier intensifies, the benefits of having first‐ and second‐tier inventory slack diminish for the buyer. A central contribution of this study is to highlight the importance of resources controlled by chain members with indirect links to the buyer and the bridging role of first‐tier suppliers. These insights suggest that for effective risk management, both direct and indirect supply chain resources and their interactions need consideration. Practically, these findings should guide supplier selection, risk management, and investments in supply chain visibility.
Silver nanoparticle synthesis assisted by micelles for the development of a colorimetric nanobiosensor capable of detecting contaminants in water
Authors: Guasamucare Rossannie , Parente Emma , Pereira Juan Carlos , Arizaga Livia 
Published: December 2024

AbstractWe report the synthesis of silver nanoparticles (Ag NPs) functionalized with L‐cysteine (Ag‐cys NPs) for colorimetric detection of contaminants: Hg2+, Pb2+, Cr6+ (CrO42−/Cr2O72), and As3+ in water samples. AgNPs synthesized were obtained in water from the mixture of the cationic and non‐ionic surfactants, cetyltrimethylammonium bromide (CTAB) and nonylphenol ethoxylate (NP‐10), respectively. Physicochemical characterization demonstrated a monomodal distribution of spherical nanoparticles with an average size of 8.25 nm. The stability of the Ag‐cys NPs was evaluated by determining the surface charge, which was found to be +27.95 mV, indicating the stability of Ag‐cys NPs against flocculation. The interaction between Ag‐cys NPs and solutions of contaminants was studied. This was done by measuring the shift in LSPR band of Ag NPs covered with cys in the region of 400–450 nm. We observed a change or disappearance of color visually, indicating aggregation or oxidation of the Ag NPs. Concentration of cys, as well as the pH of the nanoparticles, were crucial in studying the aggregation process. This is a preliminary study in search of benefits such as low cost, in situ usability, ease of use, and rapid response making it a potential alternative to traditionally employed spectroscopic methods.
Isolation and purification of flavonoids from quinoa whole grain and its inhibitory effect on lipid accumulation in nonalcoholic fatty liver disease by inhibiting the expression of CD36 and FASN
Authors: La Xiaoqin , Zhang Zhaoyan , Liang Jingyi , Li Hanqing , Pang Yan , He Xiaoting , Kang Yurui , Wu Changxin , Li Zhuoyu 
Published: December 2024

AbstractBACKGROUNDNonalcoholic fatty liver disease (NAFLD), a chronic metabolic disorder marked by excessive lipid deposition, represents a considerable health burden with no established efficacious treatment strategy. Quinoa (Chenopodium quinoa Willd.), valued for its health benefits, is replete with flavonoid bioactives. The aims of this work are to isolate and purify flavonoids from quinoa whole grain that can intervene in NAFLD and to elucidate some of the underlying mechanisms.RESULTSChenopodium quinoa Willd. flavonoids (CQWF) were obtained successfully through an optimized ultrasonic extraction methodology, followed by isolation and purification utilizing macroporous resin D101. The study then explored the therapeutic potential of CQWF and its eluted fractions in models emulating NAFLD conditions: an in vitro fatty liver cell model induced by oleic acid (OA) and palmitic acid (PA) in the HepG2 and BEL‐7402 cell lines, and an in vivo high‐fat diet (HFD)‐induced NAFLD model in C57BL/6N mice. The findings revealed a comprehensive mitigating effect of CQWF30 on NAFLD, manifesting in reduced intracellular lipid accumulation in steatotic hepatocytes and a concerted downregulation of key lipid metabolism genes, CD36 and FASN. Administration of CQWF30 reduced triglyceride (TG) levels in both the cellular model and the livers of HFD‐fed mice. It also reduced serum concentrations of TG, total cholesterol (T‐CHO), low‐density lipoprotein cholesterol (LDL‐C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT), while increasing high‐density lipoprotein cholesterol (HDL‐C) in the mice.CONCLUSIONThese results highlighted the promising therapeutic capacity of CQWF, particularly CQWF30. This research advances the exploration and utilization of flavonoids derived from quinoa whole grain, providing innovative dietary intervention strategies for NAFLD. © 2024 Society of Chemical Industry.
Validity of the Skin and UV Neoplasia Transplant Risk Assessment Calculator (SUNTRAC) tool in a Dutch cohort of transplant recipients
Authors: Bacoș‐Cosma Octavian I. , Sidorenkov Grigory A. , Kremer Daan , Knobbe Tim J. , van der Vegt Bert , Bakker Stephan J. L. , Rácz Emőke ,   TransplantLines Investigators
Published: December 2024

AbstractBackgroundTo identify patients with high risk of skin cancer, risk prediction tools have been developed.ObjectivesExternal validation of the Skin and UV Neoplasia Transplant Risk Assessment Calculator (SUNTRAC) in a Dutch cohort of solid organ transplant recipients (SOTR) and exploration of the possibility of incorporating additional risk factors to enhance its predictive performance.MethodsWe used data from the ongoing, prospective TransplantLines Biobank and Cohort Study of the University Medical Center Groningen (Groningen, The Netherlands). We conducted a survival analysis using Fine and Gray models to determine the subdistribution hazard ratios of the SUNTRAC risk factors and groups, Wolbers C index to assess its discriminative power, and cumulative incidences of skin cancer to assess its calibration. We applied the same methods for the incorporation of additional risk factors to the model.ResultsA total of 2099 patients were included with a median age at transplantation of 52.1 years (Interquartile range [IQR]: 40.6–60.1) and a median follow‐up time of 6.6 years (IQR: 3.4–12.5). In total 478 (22.8%) patients developed skin cancer. Basal cell carcinoma (53.3%) and cutaneous squamous cell carcinoma (42.9%) were most prevalent. The cumulative incidences of skin cancer per SUNTRAC risk group at 10 years were: low‐risk (1.8%), medium‐risk (12.9%), high‐risk (34.3%) and very high‐risk (68.6%). Significantly different skin cancer risk rates were observed for the medium‐risk (SHR = 9.9, 95% CI: 2.51–39.4), high‐risk (SHR = 21.5, 95% CI: 5.40–85.2) and very high‐risk (SHR = 80.3, 95% CI: 19.26–335.1) groups in reference to the low‐risk group. Wolbers C‐index at 5 years was 0.71. The model was well calibrated for our cohort. The addition of other potential risk factors yielded no or marginal improvement of discriminative value on top of SUNTRAC.ConclusionsSUNTRAC is valid for the general Dutch SOTR population, and it can be clinically implemented.
Sampling for disease surveillance: assessing effects on blue‐winged teal survival and recovery
Authors: Swift Rose J. , Arnold Todd W. , Carter Deborah L. , Link Paul , Poulson Rebecca L. , Stallknecht David E. , Pearse Aaron T. 
Published: December 2024

AbstractOutbreaks of highly pathogenic avian influenza virus in wild animals highlight the need for disease surveillance in wild birds to improve our understanding of their role as reservoirs and dispersers, and potential threats to domestic poultry and wild bird populations. Surveillance for avian influenza varies in its approach, objectives, and coordination with other monitoring efforts. For waterfowl, a common host to avian influenza viruses, banding represents a concerted effort of capturing and marking thousands of individuals annually to estimate survival and harvest rates, but users of these data have generally taken a conservative approach to remove any banded birds from analyses that had a sample taken for disease surveillance during capture. We tested for differences in survival and encounter probabilities of blue‐winged teal (Spatula discors) marked (n = 21,702 teal) and sampled for disease surveillance (n = 4,216) during the nonbreeding season in Louisiana, USA, from 2016 to 2023. Although we found no consistent effect of collecting biological samples on survival probability, including an additional test showing no detectable effects of sampling for disease surveillance with oropharyngeal and cloacal swabs versus sampling with swabs and a syringe‐drawn blood sample, wide 95% credible intervals on the posterior survival estimates (mean 0.36 difference between upper and lower values across all year‐sex‐sampling groups; 0.44 for sampling type groups) indicated low statistical power to detect an effect. Seber recovery probability during the first interval following sampling was lower among birds sampled using swabs only, but we assume this stems from low sample sizes rather than an effect of collecting biological samples. Because recovery probabilities can vary as a function of individual covariates, we also examined direct recovery probabilities and observed no meaningful effect of disease surveillance sampling type but strong effects of capture date, suggesting the effect on Seber recovery probability may have been due to heterogeneity in exposure to natural and harvest mortality risks. Although we suggest that aligning disease surveillance sample collection efforts with landscape‐scale waterfowl banding efforts may have little effect on observed demographic rates, additional studies with larger sample sizes are likely needed to provide the statistical power necessary to formally conclude no effect of biological sampling on survival probabilities.
Wear Simulations of Involute Harmonic Gear Under Mixed Lubrication Condition
Authors: Shen Yi , He Tao , Feng Jiangkai 
Published: December 2024

ABSTRACTHarmonic gears are widely used in precise space technology, robotic, medical equipment and other fields, while the magnitude of surface topography changes due to wear is usually comparable to or larger than the original surface roughness and elastic deformation, leading to severe transmission failures. This paper reports a numerical approach to simulate the lubrication status considering wear evolution based on mixed elastohydrodynamic lubrication (EHL) and Archard models, in which the Reynolds equation is solved with finite difference method and surface deformation is calculated by the discrete convolution‐fast Fourier transform (DC‐FFT) algorithm. The interfacial pressure and film thickness distributions are validated by comparison with available results from literature. The harmonic gear lubrication and wear performances are calculated, including effects of machined surface, velocity, load, wear time and material properties, and the results suggest that avoiding long‐term and high‐torque working with a large wear coefficient can effectively prevent surface wear failure, which is beneficial for increasing the harmonic gears' lifespan.
Stretching‐Regulated Homogenization of Lamellae Thickness in Biaxially Oriented Polypropylene Capacitor Films, and Its Effect on Breakdown Strength
Authors: Wang Jinqing , Guo Hanxiang , Huang Xinghua , Du Jianqiang , Zhang Qin , Wang Ke 
Published: December 2024

AbstractStretching fields give rise to the formation of reinforcing crystals in biaxially oriented polypropylene capacitor films, endowing them with excellent electrical properties. In this paper, the correlation between stretching temperature, ratio, and annealing temperature and film structure as well as electric breakdown strength (Eb) during biaxial stretching is investigated. Synchronous biaxial stretching ensures that the orientation of the prepared films is isotropic. However, the changes caused by the stretching field occur in the lamellae structure, with a gradation of thick and thin lamellae. First, an increasing stretching ratio leads to the homogenization of the crystal toward thick lamellae, increasing Eb. Second, the onset melting temperature (Tonset) is the key to the gradation of thick and thin lamellae. Stretching near or above Tonset results in a reduced order of the recrystallization precursors and forms thin lamellae, degrading Eb. Additionally, annealing below the melting point promotes chain migration, which facilitates the homogenization to thick lamellae and improves Eb. In conclusion, the improvement of Eb is related to the homogenization of lamellae thickness. These results provide new insights for optimizing film processing and crystal structure to enhance electrical insulation.
Effect of hollow beads content in aluminum oxide hollow beads reinforced epoxy composites on mechanical and energy absorption properties of the composites
Authors: Wu Z. , Gao Q. , Wang Q. , Wang Y. , Zhang Z. , Zhang Y. 
Published: December 2024

AbstractAluminum oxide hollow microbeads/epoxy resin composite is a kind of epoxy resin‐based multi‐porous energy‐absorbing material. This study improved the brittleness and toughness of epoxy resin. Adding hollow aluminum oxide microbeads with different mass fractions increased the energy absorption capacity. Quasi‐static compression tests were carried out at room temperature to test the compression properties of epoxy resin/hollow microbead composites. The composites′ energy absorption properties and energy absorption efficiency were analyzed and calculated using the obtained compression curves. The fracture characteristics and microscopic morphology of the composite specimens were observed by scanning electron microscopy. It was found that aluminum oxide hollow microbeads, as reinforcement material, can effectively improve the brittleness and yield strength of epoxy resin materials and enhance the energy absorption performance and energy absorption efficiency of composite materials. With the increase in the mass fraction of hollow microbeads, the energy absorption performance of the composite material first increases and then decreases. Its performance is the most significant when the mass fraction of aluminum oxide hollow microbeads is 10 %.
Ultrasonic welding of CF/epoxy‐CF/PEI joints with enhanced vibration transfer efficiency and optimized welding quality
Authors: Liu Jiaming , Quan Dong , Yue Dongsheng , Yang Xi , Dong Bowen , Zhao Guoqun , Zhou Chuanjian 
Published: December 2024

AbstractThis study investigated the impact of welding force on the ultrasonic welding quality of epoxy‐based to polyetherimide (PEI)‐based composite joints. PEI film layers were used on the carbon fiber/epoxy (CF/epoxy) composite surface through a co‐curing process, rendering it “weldable.” The ultrasonic welding for CF/epoxy and CF/PEI composite adherends were then performed, with varied welding force. The results showed critical effects of the welding force on the vibration transfer efficiency, morphology of welding lines and strength of welded joints. Lap‐shear strength (LSS) value of these joints initially increased and subsequently decreased with continuously increasing welding forces. Pore defects formed during the welding process were efficiently avoided while an optimal welding force was utilized, that resulted in the best quality welding line and the largest LSS of 39.4 MPa. In this case, CF/PEI and CF/epoxy composite adherends were cohesively failed, which was the main failure mechanism for the hybrid joints.Highlights
Weldability of CF/epoxy composites was realized by co‐curing a PEI layer.
Increasing welding force provided enhanced vibration transfer efficiency.
Optimal welding force led to efficiently improved welding‐line quality.
The largest LSS of 39.4 MPa was obtained with an optimal welding force.
HPLC Fingerprint Combined With Chemometrics and Multicomponent Content Determination for Quality Evaluation and Control of Huangma Tincture
Authors: Qiu Jing , Li Jie , Shang Si‐yang , Zhou Peng , Leng Jing 
Published: December 2024

ABSTRACTIntroductionHuangma Tincture (HMT) is a Chinese patent medicine with a history of clinical use for more than 60 years, widely used for treating dermal chronic ulcer such as diabetic foot ulcer. However, the overall quality evaluation and control method of HMT has not yet been researched.ObjectiveThe aim of this study is to establish a comprehensive quality evaluation and control method for HMT based on high‐performance liquid chromatography (HPLC) fingerprint, chemometrics, and multicomponent content determination.MethodsEstablishing chemical fingerprint of HMT and carrying out similarity analysis comprehensively reflect the consistency of the formulation in terms of chemical composition. Chemometrics analyses, including hierarchical cluster analysis (HCA), principal component analysis (PCA), and orthogonal partial least squares‐discriminant analysis (OPLS‐DA), were performed to identify components crucial to quality differences. The content of five potential bioactive ingredients (brucine, strychnine, jatrorrhizine, coptisine, and berberine hydrochloride) was determined as a supplementary quality control measure.ResultsHPLC fingerprint of HMT with similarity index > 0.990 was established, in which five common compounds (brucine, strychnine, jatrorrhizine, coptisine, and berberine hydrochloride) were identified. HCA, PCA, and OPLS‐DA results, validated through 200 permutation tests, were basically consistent. The contents of brucine, strychnine, jatrorrhizine, coptisine, and berberine hydrochloride in 20 batches of HMT samples were 0.2088–0.5556, 0.2599–0.9868, 0.1358–0.2092, 0.2634–0.6843, and 1.8301–2.7826 mg/mL, respectively.ConclusionHPLC fingerprint combined with chemometrics and multicomponent content determination considering both effect and toxicity provides a robust method for the comprehensive quality evaluation and control of HMT.
The Effects of Mindfulness on Shame: Exploring Mediation by Cognitive Flexibility and Self‐Compassion in a Chinese Adult Population
Authors: Zhang Xiaoshuo , Wang Jinghong , Wang Yuzheng , Wang Jinyan , Luo Fei 
Published: December 2024

ABSTRACTTo examine the effects of mindfulness on shame and the mechanisms mediated by cognitive flexibility and self‐compassion in a Chinese adult population in daily life, we conducted two studies. Study 1 was a cross‐sectional study using the Five‐Factor Mindfulness Questionnaire, the Cognitive Flexibility Inventory, the Self‐Compassion Scale, and the Self‐Conscious Affect‐3, which were administered to 481 adults in Beijing and Chengdu. For Study 2, an 8‐month follow‐up study was conducted on 128 of the adults. The results of Study 1 showed that (1) the awareness of action and nonjudgment dimensions, and the total score of mindfulness were significantly correlated with shame; (2) cognitive flexibility and self‐compassion could fully mediate the prediction of mindfulness on shame. The Study 2 showed that (1) mindfulness and shame were significantly negatively correlated in both phases of measurement; (2) controlling for T1 shame, T1 mindfulness was able to negatively predict T2 shame; controlling for T1 mindfulness, T1 shame was not able to predict T2 mindfulness. There is a longitudinal association between mindfulness and shame, and only mindfulness scores are predictive of the shame and not vice‐versa; both cognitive flexibility and self‐compassion can provide explanations for the prediction of shame by mindfulness. Enhancing levels of mindfulness can help alleviate individuals' shame levels.
The Impact of Economic Disasters on Multidimensional Sustainability: Evidence From Cross‐Country Data
Authors: Malešević Perović Lena , Ćorić Bruno 
Published: December 2024

ABSTRACTThis paper investigates how economic disasters affect sustainable development worldwide. These disasters, defined as particularly severe economic crises that cause a significant drop in GDP (10% or more), are the main focus of the study. In addition to being massive, economic disasters refer to both economic (financial, debt, and sovereign crises) and noneconomic events such as natural disasters, wars, and epidemics. This allows us to account for various events that potentially affect sustainability and differentiates us from other studies in the field, which typically focus on a much narrower concept—economic crises. In addition, this study looks at various sustainable development indicators and their components, thus enabling a more thorough and all‐encompassing analysis compared to other papers that primarily focus on the environment only. Finally, this paper investigates both the short‐ and long‐term effects across countries at different levels of development, thus providing additional insights into this topic. The findings show that economic disasters harm key sustainability indicators like adjusted net savings and the human development index, with low‐ and lower‐middle‐income countries being hit the hardest. Economic disasters also impact environmental indicators such as CO2 emissions, deforestation rates, air pollution, energy efficiency, and resource consumption. In addition, the study highlights how these disasters affect progress on specific sustainable development goals, emphasizing the need for policies that focus on long‐term sustainability rather than short‐term economic recovery.
Surface Engineering of 2D Metal‐Porphyrin Metal–Organic Frameworks Z‐Scheme Heterostructure for Boosting and Stable Photocatalytic Hydrogen Evolution
Authors: Zhu Wenjun , Zhu Hu , Zhang Taiyang , Qin Lixia , Kang Shi‐Zhao , Li Xiangqing 
Published: December 2024

AbstractHow to improve the stability and activity of metal–organic frameworks is an attractive but challenging task in energy conversion and pollutant degradation of metal–organic frameworks materials. In this paper, we developed a facile method by fabricating TiO2 nanoparticles (NPs) layer on 2D copper tetracarboxylphenyl‐metalloporphyrin metal–organic frameworks (MOFs) with Zn2+ as the linkers (ZnTCuMT‐X, “Zn” represented Zn2+ as the linkers, the first “T” represented tetracarboxylphenyl‐metalloporphyrin (TCPP), “Cu” represented the Cu2+ coordinated into the porphyrin macrocycle, “M” represented MOFs, the second “T” represented TiO2 NPs layer, and “X” represented the added volume of n‐tetrabutyl titanate (X = 100, 200, 300 or 400)). It was found that the optimized ZnTCuMT‐200 showed greatly and stably enhanced H2 generation, which was about 28.2 times and 47.0 times as high as those of the original metalloporphyrin MOFs and TiO2, respectively. Combined with the results of free radical capture, X‐ray photoelectron spectra, electron spin resonance and theoretical calculation, a direct Z‐scheme electron transfer mechanism was achieved to fully explain the enhanced photocatalytic performance. It demonstrates that facilely designing Z‐scheme heterostructures based on porphyrin MOFs modified with inorganic semiconductor layer could be an advantageous strategy for enhancing the stability and activity of photocatalytic hydrogen evolution.