bluuebunny/crossref_metadata_2025_split huggingface dataset:
Repetitive recycling effects on mechanical characteristics of poly‐lactic acid and PLA/spent coffee grounds composite used for 3D printing filament
Authors: Boughanmi Oumaima , Allegue Lamis , Marouani Haykel , Koubaa Ahmed , Fouad Yasser 
Published: August 2024

AbstractDue to its biodegradability, biocompatibility, and mechanical properties, poly‐lactic acid (PLA) is a leading biomaterial for numerous applications, especially for fused deposition modeling and fused filament fabrication. Nonetheless, the absence of a comprehensive recycling strategy may emerge as a significant source of plastic pollution in the future. Indeed, the polymer undergoes deterioration during melt recycling, resulting in a decrease in some mechanical properties that can compromise recyclability. To improve the properties of recycled PLA, the utilization of organic fillers coming from renewable materials can be considered as a sustainable solution. The objective of this work is then to evaluate the effect of recycling (reprocessing) on a virgin raw material as well as on biocomposites based on spent coffee grounds (incorporating 5% of spend coffee grounds in weight). The different types of filaments are extruded and re‐extruded and characterized under tensile, melt flow index, and hardness tests. The results show that the increase in the number of extrusions whether for virgin PLA or the composite contributes to the diameter fluctuation. Regarding the tensile properties, the rise in the frequency of recycling shows a weakness in the tensile strength and the elongation at break. On the other hand, Young's modulus values exhibit fluctuations. Concerning the addition of the spent coffee grounds filler, no major enhancement is observed in the tensile strength and the elongation at break, which is attributed to the poor adhesion between the matrix and the filler. The recycling process affects the hardness values of PLA, leading to an increase in these values, as well as those of the composite, which can be associated with the increased crystallinity caused by the recycling process and the SCG incorporation.Highlights
Recycling and reusability strategy for poly‐lactic acid (PLA) and PLA/spent coffee grounds (SCG) filaments.
Assessment of recycling effects on PLA and PLA/SCG.
Mechanical characterization through tensile and hardness testing.
Isotactic polypropylene produced by rac/meso mixtures of hafnocene complexes through selective rac activation
Authors: Lenz Tim M. , Rieger Bernhard 
Published: August 2024

AbstractMeso isomers of indenyl‐based group IV hafnocene complexes produce atactic polypropylene (aPP) and thus, have to be tediously separated from their racemic analogs for the production of isotactic polypropylene (iPP). Herein, we report a facile activation protocol to selectively convert only the racemic precatalysts into catalytically active species when isomeric precatalyst mixtures are employed. At the same time, the meso isomers are deactivated, thus yielding no polypropylene at all. The macromolecular characteristics of iPP, that is, melting transition, molecular weight, and tacticity, obtained by this protocol were analog to the characteristics of iPP produced by the corresponding pure racemic isomers, as proven for different complexes, isomeric ratios, and polymerization conditions. Nuclear magnetic resonance experiments revealed that the employed precatalyst activation protocol – that is, alkylation with triisobutylaluminum and subsequent generation of a free coordination site with [Ph3C][B(C6F5)4] – led to catalytically active, binuclear hydride‐bridged racemic species but inactive meso resting states. The separation of both precatalyst isomers, which was believed to be crucial to obtaining pure iPP since the 1980s, rendered hafnocene syntheses unnecessarily laborious and can be circumvented by the activation protocol established in this work.
Effects of cold atmospheric plasma‐treated medium on HaCaT and HUVEC cells in vitro
Authors: Chen Mingyan , Chen Junjin , Xie Tian , Chen Zheng , Xu Guimin 
Published: August 2024

AbstractCold atmospheric plasma (CAP) is an emerging technology that can generate various reactive oxygen and nitrogen species (RONS) at room temperature and shows promising applications for skin wound healing. The effects of plasma‐treated medium (PTM) promoting cell proliferation have been verified, but the biological mechanisms involved are not well known. This study aims to assess the proliferation effect and mechanism induced by PTM on human keratinocyte cells (HaCaT) and human umbilical vein endothelial cells (HUVEC) in vitro. The results showed that the concentrations of H2O2 and NO2− inside PTM increased in a time‐dependent manner as the atmospheric pressure plasma jet (APPJ) treatment time was prolonged. The biological outcomes were determined by cell counting kit, wound healing assay, flow cytometry, enzyme‐linked immunosorbent assay (ELISA), and western blot analysis. The cell viability and motility assays indicated that appropriate plasma conditions of short treatment time (15s‐, 30s‐ and 45s‐PTM) could promote cell proliferation, while long treatment time would inhibit cell proliferation (60s‐PTM). With an appropriate time of PTM treatment, the secretion of vascular endothelial growth factor‐α (VEGF‐α) and transforming growth factor alpha (TGF‐α) was promoted and the extracellular signal‐regulated kinase/serine‐threonine protein kinase pathways were activated, which induced HaCaT and HUVEC cell proliferation eventually. These behaviors of cells were mainly related to the enhancement of intracellular reactive oxygen species levels. These findings established a theoretical foundation for potential clinical applications of PTM in wound healing.
Effect of nurse‐led and physician‐led multidisciplinary team palliative care on quality of life, negative emotions, and pain for cancer patients: A meta‐analysis
Authors: Li Yunrong , Wang Tiantian , Zhang Yi , Zhao Yun 
Published: August 2024

AbstractTo systematically evaluate the effect of nurse‐led and physician‐led multidisciplinary team (MDT) palliative care models on quality of life, negative emotions, and pain for cancer patients. A comprehensive literature search of randomized controlled trials (RCTs) published in nine databases was conducted. Data analysis was performed using RevMan5.3. The findings were summarized using a random effects model of mean differences with 95% confidence intervals. The search strategy identified 15 articles involving 1850 cancer patients. MDT hospice care improved quality of life among cancer patients (SMD = 1.77, 95% CI [1.08, 2.46], Z = 5.02, p < .001), with nurse‐led care (SMD = 3.04, 95% CI [2.29, 3.79], Z = 7.95, p < .001) providing better effects than physician‐led care (SMD = 0.5, 95% CI [0.33, 0.67], Z = 5.76, p < .001). Furthermore, MDT hospice care significantly alleviated depression (SMD = –1.31, 95% CI [−1.49, −1.12], Z = 14.18, p < .001) and anxiety (SMD = –1.11, 95%CI [−1.29, −0.92], Z = 11.69, p < .001) and reduced patients' pain (SMD = –0.92, 95% CI [−1.13, −0.7], Z = 8.37, p < .001). Nurse‐led care provided better effects for relieving anxiety and depression, while physician‐led care provided better effects for relieving pain. The findings of the meta‐analysis indicate that MDT palliative care can improve the quality of life for cancer patients and alleviate their depression, anxiety and their pain. Nurse‐led care was superior in terms of quality of life, depression, and anxiety indicators, while physician‐led care had a more significant effect on pain relief.
Mountain waves developing inside and aloft stably stratified turbulent boundary layers
Authors: Pauget Lucile , Lott Francois , Millet Christophe 
Published: August 2024

AbstractA linear theory of the trapped mountain waves that develop in a turbulent boundary layer is presented. The theory uses a mixing‐length turbulence model based on Monin–Obukhov similarity theory. First, the backward reflection of a stationary gravity wave propagating toward the ground is examined. Three parameters are investigated systematically: the Monin–Obukhov length , the roughness length , and the limit value of the mixing length aloft the “inner” layer. The reflection coefficient appears to depend strongly on the Richardson number aloft the inner layer (, with the von Kármán constant), with the reflection decreasing when the stability increases. The influence of the roughness and mixing lengths on the reflection is explained in terms of the depth of a “pseudo”‐critical level located below the surface, with the reflection decreasing when the depth of the “pseudo”‐critical level decreases. The preferential modes of oscillations occurring in the presence of mountain forcing are then analysed, with the decay rate of the trapped waves downstream increasing when the reflection decreases. At a certain point nevertheless, when the absorption is large but the boundary‐layer depth deep enough, trapped modes appear that interact little with the surface.
Relapsing polychondritis after COVID‐19 vaccination
Authors: Ito Koki , Ogawa Takunori , Igarashi Shunya , Miyai Kosuke , Sato Kimiya , Kawana Akihiko , Kimizuka Yoshifumi 
Published: August 2024

AbstractRelapsing polychondritis (RP) is a rare inflammatory disorder involving immune‐mediated destruction of cartilaginous structures. Herein, we present the first report of a strong association between COVID‐19 vaccination and RP development. Clinicians should be aware that RP is among the autoimmune diseases that can develop after mRNA vaccination.
Quantized output‐feedback event‐triggered distributed control of switched fractional multi‐agent systems subject to input nonlinearities and consensus error constraints
Authors: Malek Sayyed Alireza , Shahrokhi Mohammad , Pishro Aboozar 
Published: August 2024

AbstractIn this paper, an adaptive quantized output feedback event‐triggered (ET) distributed consensus control approach for an uncertain nonstrict nonlinear switched fractional‐order (FO) multi‐agent system (SFOMAS) subject to communication limitation is proposed. By relying on the common Lyapunov function method, the switch signals are arbitrarily, and no information regarding the switching instants is required. The consensus error of each agent has its own asymmetric time‐varying constraints (ATCs). By adopting the common barrier Lyapunov function (BLF), violation of these constraints is prevented. For each agent, different input nonlinearities can be considered in different modes, and the controllers need no information about their types and characteristics. The communication burden between outputs sensors and the controllers is reduced by applying uniform‐logarithmic‐hysteresis quantizers to the outputs signals. By using FO filters, which can be considered as a FO version of the dynamic surface control (DSC) method, the so‐called explosion of complexity is avoided and the discontinuity problem of FO derivatives of virtual controllers due to outputs quantization is resolved. Observers are designed to estimate the unmeasured states. Also, function approximators (FAs) are employed to approximate uncertainties. A novel lemma that correlates observer states to consensus errors and their constraints, FO filters errors, adaptive parameters and backstepping error surfaces, has been proposed to establish the observer stability. To reduce the communication burden between the controllers and actuators, relative threshold ET mechanisms have been applied to control signals. The combination problem of unmeasured states with the mentioned input constraints for SFOMASs is coped with another novel lemma. Utilizing the common Lyapunov functions (CLFs) and the backstepping technique, virtual controllers, adaptive law and control signal for each agent have been designed and boundedness of closed‐loop signals and avoidance of Zeno behavior have been proved. The effectiveness of the proposed control scheme is demonstrated through a simulation study.
Soybean planting date affects the relationships between soil test values and grain yield
Authors: Loman Marcos Harm , Sible Connor N. , Below Frederick E. 
Published: August 2024

AbstractMany soybean [Glycine max (L.) Merr.] growers in the US Midwest rely on soil test values for evaluating the crop's fertilizer needs. However, threshold values for Illinois were calibrated to soybean yield in the 1960s when the production systems and yield potential were much different than today. The objective of this study was to determine which and how well soil test values predict yield of unfertilized soybean. Preplant soil samples, collected from 133 trials across Illinois from 2014 to 2021, were analyzed for 14 chemical attributes and compared to unfertilized soybean grain yields from those same studies. Pearson correlation coefficients (r), principal factor analysis, and latent variable regression models were used to determine those soil attributes most closely associated with grain yield and yield components. The association of planting date and yield (r = −0.56) led to dividing the data set into five planting date groups. Soil fertility levels resulted in a strong correlation with yield for Late or Very‐late planting groups, but not for the Early or Very‐early groups. A factor analysis of soil attributes largely resulted in retention of two factors, identified as Soil Organic Charge and Soil Fertility, across the planting‐date groups. Regression of these factors with yield confirmed that soil fertility had a greater influence on grain yield for late‐planted soybeans than early‐planted and that these differences were associated with average seed weight. Therefore, positioning late‐planted soybeans in higher fertility fields and early‐planted soybeans in lower‐fertility fields could reduce the need for supplemental fertilization.
Work‐related resilience, engagement and wellbeing among music industry workers during the Covid‐19 pandemic: A multiwave model of mindfulness and hope
Authors: Scott Kristin L. , Ferrise Emily , Sheridan Sharon , Zagenczyk Thomas J. 
Published: August 2024

AbstractWe surveyed workers in the performing arts sector to explore the role of positive mindsets in facilitating work‐related resilience, engagement and reduced stress using retrospective reporting surveys during the Covid‐19 work shut down period. Integrating conservation of resources theory with research on metacognitive self‐regulation, we controlled for the severity of the Covid‐19 impact and negative affect and found that hope (but not mindfulness) predicted professional engagement, resiliency and reduced tension and distress over time. Further, the relationships between hope and outcomes were mediated by positive affect (PA). Mindfulness was not indirectly (via PA) related to outcomes (i.e., engagement, resiliency, job tension, distress) but was directly and negatively related to job tension and distress. These findings suggest that in times of intense stress or adversity, future‐oriented thinking such as hope may be more effective than mindfulness in sustaining positive mindsets and action‐oriented outcomes such as engagement. Implications for practice and future research are discussed.
Quantum Dot/TiO2 Nanocomposite‐Based Photoelectrochemical Sensor for Enhanced H2O2 Detection Applied for Cell Monitoring and Visualization
Authors: Zhao Shuang , Yue Zhao , Zhu Dingcheng , Harberts Jann , Blick Robert H. , Zierold Robert , Lisdat Fred , Parak Wolfgang J. 
Published: August 2024

AbstractThis work exploits the possibility of using CdSe/ZnS quantum dot (QD)‐electrodes to monitor the metabolism of living cells based on photoelectrochemical (PEC) measurements. To realize that, the PEC setup is improved with respect to an enhanced photocurrent signal, better stability, and an increased signal‐to‐noise ratio, but also for a better biocompatibility of the sensor surface on which cells have been grown. To achieve this, a QD‐TiO2 heterojunction is introduced with the help of atomic layer deposition (ALD). The heterojunction reduces the charge carrier recombination inside the semiconductor nanoparticles and improves the drift behavior. The PEC performance is carefully analyzed by adjusting the TiO2 thickness and combining this strategy with multilayer immobilizations of QDs. The optimal thickness of this coating is ≈5 nm; here, photocurrent generation can be enhanced significantly (e.g., for a single QD layer electrode by more than one order of magnitude at 0 V vs Ag/AgCl). The resulting optimized electrode is used for hydrogen peroxide (H2O2) sensing with a good sensitivity down to µmolar concentrations, reusability, stability, response rate, and repeatability. Finally, the sensing system is applied to monitor the activity of cells directly grown on top of the electrode surface.
Ultrafast Hole Trapping in Te‐MoTe2‐MoSe2/ZnO S‐Scheme Heterojunctions for Photochemical and Photo‐/Electrochemical Hydrogen Production
Authors: Ali Syed Asim , Ahmad Tokeer 
Published: August 2024

AbstractTe‐MoTe2‐MoSe2/ZnO S‐scheme heterojunctions are engineered to ascertain the advanced redox ability in sustainable HER operations. Photo‐physical studies have established the steady state transfer of photo‐induced charge carriers whereas an improved transfer dynamics realized by state‐of‐art ultrafast transient absorption and irradiated‐XPS analysis of optimized 5wt% Te‐MoTe2‐MoSe2/ZnO heterostructure. 2.5, 5, and 7.5wt% Te‐MoTe2‐MoSe2/ZnO photocatalysts (2.5MTMZ, 5MTMZ and 7.5MTMZ) exhibited 2.8, 3.3, and 3.1‐fold higher HER performance than pristine ZnO with marvelous apparent quantum efficiency of 35.09%, 41.42% and 38.79% at HER rate of 4.45, 5.25, and 4.92 mmol/gcat/h, respectively. Electrochemical water splitting experiments manifest subdued 583 and 566 mV overpotential values of 2.5MTMZ and 5MTMZ heterostructures to achieve 10 mA cm−2 current density for HER, and 961 and 793 mV for OER, respectively. For optimized 5MTMZ photocatalyst, lifetime kinetic decay of interfacial charge transfer step is evaluated to be 138.67 ps as compared to 52.92 ps for bare ZnO.
Update on ketosis in dairy cattle with major emphasis on subclinical ketosis and abdominal adiposity
Authors: Melendez Pedro , Serrano Manuel Vizcaino 
Published: August 2024

AbstractThe metabolic changes that occur during the early post‐partum period in dairy cows can indeed lead to an imbalance in energy utilization, resulting in the production of excessive ketone bodies. This can have detrimental effects on the cow's health and milk production, leading to economic losses for dairy producers. The release of non‐esterified fatty acids into the blood due to increased lipolysis is a key factor in the development of ketosis. Abdominal adiposity is a key factor on these outcomes in modern dairy cows. The redirection of energy and glucose towards lactose synthesis and milk yield leaves a deficit of gluconeogenic precursors, leading to the conversion of acetyl‐CoA into ketone bodies instead of entering the Krebs cycle. These ketone bodies, including acetone, acetoacetate and β‐hydroxybutyrate, accumulate in the blood and can be detected in various bodily fluids, such as urine, blood and milk, allowing for diagnostic testing. Prevention is indeed crucial in managing ketosis in dairy cattle. Supplementation of propylene glycol in the diet or the use of monensin, either in the diet or in the form of a slow‐release bolus, can help prevent the occurrence of ketosis. However, avoiding high body condition (subcutaneous fat) and excessive abdominal adiposity during the dry period and parturition plus an adequate cow comfort are fundamental tasks to avoid ketosis and related disorders. These interventions aim to provide additional energy sources or enhance the cow's ability to utilize energy efficiently, thus reducing the reliance on excessive lipolysis and ketone body production.
Feline gastrointestinal eosinophilic sclerosing fibroplasia associated with Candida albicans
Authors: Almendros Angel , Giuliano Antonio , Tse May , Barrs Vanessa Rosemary 
Published: August 2024

AbstractFeline gastrointestinal eosinophilic sclerosing fibroplasia (FGESF) is a rare and poorly understood disease characterised by the infiltration of eosinophils and the development of fibrous tissue within the gastrointestinal tract of cats. A 2‐year‐old female neutered Ragdoll was presented for signs consistent with extrahepatic biliary tract obstruction (EHBO), including jaundice, hyporexia and lethargy. Marked progressive hyperbilirubinemia and mild anaemia were also present. Abdominal ultrasonography suggested a duodenal mass and pancreatitis as the cause of EHBO. Cytopathological results from fine needle aspirates detected mast cells and eosinophils in the duodenal mass and eosinophils in the spleen and the liver, suggestive of a possible mast cell tumour. A cholecystojejunostomy and a duodenotomy were performed to divert the biliary outflow and obtain biopsy samples, respectively. Eosinophilic sclerosing fibroplasia in the duodenal mass and fungal elements in an abdominal lymph node were reported on histopathological examination. A pan‐fungal PCR targeting ITS2 performed on DNA extracted from an abdominal lymph node detected Candida albicans. This report adds to the growing body of evidence that FGESF can occur in association with fungal infections.
Digitization of Clinical Pathways in Low- and Middle-Income Countries
Authors: Marino Denis , Harutyunyan Anna , Sargsyan Karine 
Published: August 2024

AbstractThe digital revolution has transformed many industries, and healthcare is no exception. In low- and middle-income countries (LMICs), digitization of clinical processes can improve healthcare delivery, patient outcomes, and healthcare system efficiencies. This chapter examines the current state of digitization of clinical pathways in LMICs and highlights the challenges and opportunities in accordance with its implementation. It also examines the impact of digital technologies on various aspects of clinical pathways, such as diagnosis, treatment, monitoring, and follow-up. The potential benefits and risks of digitization are discussed, including data security, privacy, and fairness issues. Based on a review of the relevant literature, the chapter aims to provide an insight into the potential of digitization to revolutionize healthcare in LMICs.
The connection between nucleon energy correlators and fracture functions
Authors: Chen Kai-Bao , Ma Jian-Ping , Tong Xuan-Bo 
Published: August 2024

Abstract
We establish a sum rule that connects fracture functions to nucleon energy-energy correlators (NEECs) in a one-to-one correspondence. Using this sum rule, we study the energy pattern in the target fragmentation region of deep inelastic scatterings. Through investigations up to twist-3, we express all eighteen energy-pattern structure functions in terms of associated NEECs, elucidating various azimuthal and spin asymmetries critical for nucleon tomography. Additionally, we investigate the perturbative matching of the twist-2 quark NEECs. We demonstrate that the Sivers-type and worm-gear-type quark NEECs match onto twist-3 multi-parton distributions. Our work provides a framework for examining energy-weighted observables through hadron production processes in the target fragmentation region, offering new insights into nucleon tomography.
Full QCD with milder topological freezing
Authors: Bonanno Claudio , Clemente Giuseppe , D’Elia Massimo , Maio Lorenzo , Parente Luca 
Published: August 2024

Abstract
We simulate Nf = 2 + 1 QCD at the physical point combining open and periodic boundary conditions in a parallel tempering framework, following the original proposal by M. Hasenbusch for 2d CPN−1 models, which has been recently implemented and widely employed in 4d SU(N) pure Yang-Mills theories too. We show that using this algorithm it is possible to achieve a sizable reduction of the auto-correlation time of the topological charge in dynamical fermions simulations both at zero and finite temperature, allowing to avoid topology freezing down to lattice spacings as fine as a ∼ 0.02 fm. Therefore, this implementation of the Parallel Tempering on Boundary Conditions algorithm has the potential to substantially push forward the investigation of the QCD vacuum properties by means of lattice simulations.