bluuebunny/crossref_metadata_2025_split huggingface dataset:
Macroporous Adhesive Nano‐Enabled Hydrogels Generated from Air‐in‐Water Emulsions
Authors: Xie Manshan , Zheng Zhiwen , Pu Shiheng , Jia Yong‐Guang , Wang Lin , Chen Yunhua 
Published: January 2022

AbstractDeveloping nanocomposite hydrogel with multi‐functions including adjustable mechanical property, tissue‐adhesion, and blood coagulation property to accelerate wound healing is highly desirable in surgical application. Here a macroporous adhesive nano‐enabled hydrogel constructed from gelatin methacryloyl stabilized air‐in‐water emulsions incorporated with dopamine‐grafted‐gelatin (GelDA) and Laponite nanoclay is reported. The hydrogel exhibits interconnected macroporous structure. The physical/chemical cross‐linked network formed among the various components contributes to the good mechanical strength of hydrogel, which could be further regulated by adjusting the concentration of Laponite nanoclay. Furthermore, the nanocomposite macroporous hydrogel is endowed with self‐healing properties and tissue adhesion by the intermolecular hydrogen bonds, ionic interactions among Laponite nanoclay and polymers, as well as the catechol functional groups. The in vitro studies demonstrate that the macroporous hydrogel has good biocompatibility and could significantly reduce blood clotting time, which is expected to be applied for the rapid sealing and hemostasis of bleeding wounds.
Fabrication of PBAT/PPC Blend Nanocomposites with Low Conductivity Percolation and Balanced Mechanical and Barrier Properties via Incorporation of Partially Reductive GO
Authors: Li Huili , Hu Jinhuan , Liang Yong , Wang Haiting , Jiang Guo 
Published: January 2022

AbstractPoly(butylene adipate‐co‐terephthalate) (PBAT) nanocomposites with poly(propylene carbonate) (PPC) and graphene oxide (GO) are fabricated by melt blending. A dual‐continuous network structure is obtained via adding reactive compatibilizer and nanofillers, which not only dramatically reduce the conductivity percolation threshold of nanocomposites but also improve its mechanical properties. The compatibility of PBAT and PPC is improved owing to the partial thermally reduced GO (PrGO) with the residual oxygen‐containing functional groups on its surface. The epoxy groups of the reactive compatibilizer (Jc‐ADR) react with the terminal groups of polymers to increase the interfacial adhesion. The characterization analysis by morphology, rheology, mechanics, DMA, and conductivity indicates that the formation of the dual‐continuous network is attributed to the synergistic effect of PrGO and Jc‐ADR. Furthermore, a remarkable enhancement in barrier properties is obtained with the addition of PrGO. Compared with PBAT/PPC blends, the water vapor permeability (WVP) decreases by nearly 1 order of magnitude after adding 1.0 wt% PrGO. This will offer a possibility for the development application of PBAT and PPC in a barrier and antistatic packaging field.
Chemical Fuel Mediated Self‐Regulatory Polymer Brushes for Autonomous Fluorescence Modulator and Wettability Switcher
Authors: Li Mengyuan , Ma Ziwen , Pan Chunyu , Zhang Xiaoye , Zhang Wenke , Yang Bai , Li Yunfeng 
Published: January 2022

AbstractSynthetic systems of nonequilibrium self‐assembly have made considerable progress; however, the achievement of innovative materials with self‐regulated functions analogous to living systems remains a grand challenge. Herein, a versatile nonequilibrium system of polymer brushes with spatiotemporally programmable properties and functions driven by chemical fuels is reported. By combining a responsive polymer with an autonomous pH regulator, the polymer brushes self‐regulate their swelling and deswelling process with tunable lifetimes. By using patterned copolymer brushes with pH‐responsive fluorescence moiety, an autonomous fluorescence modulator is created that self‐regulates its fluorescence in spatiotemporally programmable fashion driven by a chemical or an enzymatic reaction. Furthermore, a self‐regulated wettability switcher of polymer brushes both in air and in an aqueous solution is implemented. The methodology and results in the work provide a useful avenue into the exploration of nonequilibrium synthetic materials with programmable functions and would accelerate the transformative developments of nonequilibrium materials and systems in practical applications.
Impact of goodwill on capital structure and the moderating role of investors' education
Authors: Thakur Oli Ahad , Noordin Bany‐Ariffin Amin , Matemilola Bolaji Tunde , Alam Md. Kausar , Setiawan Doddy 
Published: January 2022

This paper investigates the impact of goodwill on capital structure and how investors' education affects the relationship between goodwill and capital structure in developing and developed countries. This study covers both developing and developed countries using a sample of 4912 and 4303 non‐financial companies from 23 developing and 9 developed countries, respectively, over 9 years (2010–2018). By applying panel data techniques, study shows that goodwill has a significant positive impact on the capital structure of developing and developed countries. Besides, investors' education moderates the relationship between goodwill and capital structure, especially in developed countries. Managers of the goodwill assets‐based companies in developing and developed countries can formulate their borrowing policy in the same fashion as the managers of a tangible asset‐based company do. Outcomes of this study will help investors/creditors in those countries to develop a clear view of the collateralization of goodwill. Policymakers in the developed countries will have a better idea about the role of investors' education in the financing of the companies.
Plasma Metabolites Associated with a Protein‐Rich Dietary Pattern: Results from the OmniHeart Trial
Authors: Kim Hyunju , Lichtenstein Alice H. , White Karen , Wong Kari E. , Miller Edgar R. , Coresh Josef , Appel Lawrence J. , Rebholz Casey M. 
Published: January 2022

ScopeLack of biomarkers is a challenge for the accurate assessment of protein intake and interpretation of observational study data. The study aims to identify biomarkers of a protein‐rich dietary pattern.Methods and ResultsThe Optimal Macronutrient Intake Trial to Prevent Heart Disease (OmniHeart) trial is a randomized cross‐over feeding study which tested three dietary patterns with varied macronutrient content (carbohydrate‐rich; protein‐rich with about half from plant sources; and unsaturated fat‐rich). In 156 adults, differences in log‐transformed plasma metabolite levels at the end of the protein‐ and carbohydrate‐rich diet periods using paired t‐tests is examined. Partial least‐squares discriminant analysis is used to identify a set of metabolites which are influential in discriminating between the protein‐rich versus carbohydrate‐rich dietary patterns. Of 839 known metabolites, 102 metabolites differ significantly between the protein‐rich and the carbohydrate‐rich dietary patterns after Bonferroni correction, the majority of which are lipids (n = 35), amino acids (n = 27), and xenobiotics (n = 24). Metabolites which are the most influential in discriminating between the protein‐rich and the carbohydrate‐rich dietary patterns represent plant protein intake, food or beverage intake, and preparation methods.ConclusionsThe study identifies many plasma metabolites associated with the protein‐rich dietary pattern. If replicated, these metabolites may be used to assess level of adherence to a similar dietary pattern.
Real‐time radial tagging for quantification of left ventricular torsion
Authors: Mohammadi Elham , Nasiraei‐Moghaddam Abbas , Uecker Martin 
Published: January 2022

PurposeTo develop a real‐time radial tagging MRI for accurate measurement of rotational motion and twist of the left ventricle (LV).MethodsA FLASH‐based radial tagging sequence with an undersampled radial reading scheme was developed for both single and double‐slice imaging in real‐time. The Polar Fourier Transform was used for reconstruction to push the undersampling artifacts out of a reduced FOV. The developed technique was used to image five normal subjects during rest, plus one during both exercise and rest conditions. LV rotational motions were estimated for five consecutive cardiac cycles in all cases. The process was validated using a numerical phantom. The real‐time measurement of global rotational motion was compared with those measured from a non‐real‐time exam using linear regression analysis and the Bland‐Altman plot.ResultsThe real‐time acquisition was performed successfully with a temporal resolution of 46.2 ms. Image quality was sufficient for the reproducible calculation of rotation at rest and exercise. The feasibility of double‐slice acquisition on human was further studied and a real‐time twist of the left ventricle was demonstrated. The difference between LV global rotations from real‐time and non‐real‐time approaches was 0.27 degrees. A significant reverse recoiling, induced by exercise, was reproducibly measured by the technique.ConclusionA real‐time radial tagging MRI technique was developed based on the undersampled radial acquisition and Polar Fourier Transform reconstruction, for accurate measuring of the heart rotational motion and twist. The technique was able to extract a meaningful change of diastolic recoiling under stress test conditions during physical activities (cycling).
Prepregnancy weight change associated with high gestational weight gain
Authors: Catov Janet M. , Sun Baiyang , Lewis Cora E. , Bertolet Marnie , Gunderson Erica P. 
Published: January 2022

AbstractObjectiveGestational weight gain (GWG) above recommendations is a risk factor for adverse maternal, perinatal, and long‐term outcomes. This study hypothesized that prepregnancy weight gain may portend excess GWG.MethodsAmong 1,126 women (51% of whom were of Black race) in the Coronary Artery Risk Development in Young Adults (CARDIA) study with post‐baseline births, the prepregnancy annual rate of BMI change per woman was estimated (slope; 5 years before pregnancy) and was related to the risk of GWG above Institute of Medicine recommendations using mixed‐effects models (binary) and GWG z score (continuous), adjusting for confounders, and stratified by prepregnancy overweight/obesity status.ResultsA total of 626 women (56%) had excess GWG. Each standard deviation increase in prepregnancy BMI (0.16 kg/m2 per year) was associated with an 18% increased risk of excess GWG (95% CI: 1.13‐1.23), adjusted for covariates. Stratified results showed an association for women without overweight or obesity (adjusted relative risk = 1.71 [95% CI: 1.38‐2.13]) but not among those with overweight or obesity (adjusted relative risk = 0.98 [95% CI: 0.91‐1.05]). When evaluated as a z score, prepregnancy weight gain was associated with higher GWG among women with and without overweight or obesity (mean = 0.24 [0.10] and 0.28 [0.12] z score, respectively).ConclusionsWeight gain before pregnancy is associated with higher GWG during pregnancy. Assessment of prepregnancy weight changes may identify those at risk for high GWG.
Providing Government Assistance Online: A Field Experiment with the Unemployed
Authors: Briscese Guglielmo , Zanella Giulio , Quinn Veronica 
Published: January 2022

AbstractWelfare programs often consist of mandated in‐person assistance services. This feature can introduce an engagement barrier for some beneficiaries. Offering some of these services online can address this problem while also reducing administrative costs. In a field experiment with about 2,700 beneficiaries of unemployment benefits, we evaluate the effectiveness of a self‐directed website that supplements assistance traditionally delivered by job center staff. Tracking employment outcomes for nearly two years, we find that the intervention significantly increased job‐finding rates for some groups. Towards the end of the first year, the effect is still 7 percentage points (25 percent higher than in the control group) for prime‐age job seekers (35 to 50 years old) and 9 percentage points (35 percent higher than the control group) for women, reversing the job‐finding gender gap. We discuss opportunities for governments to scale up similar low‐cost interventions to assist social insurance and welfare beneficiaries online.
Does Online Credit Recovery in High School Support or Stymie Later Labor Market Success?
Authors: Heinrich Carolyn J. , Cheng Huiping 
Published: January 2022

AbstractAn emerging body of research links online credit recovery programs to rising high school graduation rates but does not find comparable increases in student learning. This study follows high school students who engaged in online credit recovery into the labor market to understand the longer‐term implications of this growing educational trend. If online credit recovery contributes to high school completion and facilitates job entry, then participants in online credit recovery may have labor market outcomes that differ little relative to those recovering credits in traditional classroom settings. However, if online credit recovery courses are inferior in terms of the knowledge or skills they impart and that learning is critical to workforce success, then online credit recovery participants may earn less over time. The study findings suggest that high school students who participated in online credit recovery initially had earnings on par with those who did not recover course credits online, but a negative differential emerged between their earnings and the earnings of nonparticipants that grew over time. We found no evidence to suggest that students ever benefitted in the labor market from online credit recovery in high school.
Protein fractionation of pH‐responsive brush‐modified ethylene vinyl alcohol copolymer membranes*
Authors: Ye Hui , Zhou Yining , Yang Guodong , Yu Tengfei , Zhang Yuzhong , Zhao Lizhi , Xin Qingping , Han Shurui 
Published: January 2022

AbstractProtein fractionation and purification remain challenging in membrane separation. Herein, a pH‐responsive membrane was developed by grafting the brush‐like poly(dimethylaminoethyl methacrylate) (PDMAEMA) via ATRP onto the ethylene vinyl alcohol copolymer (EVAL) membrane for protein fractionation. The PDMAEMA brushes are distributed in all pore channels of the membrane. Based on the electrostatic and sieving properties of the as‐prepared pH‐responsive membrane, three milk proteins are successfully separated from their mixture. The α‐Lactalbumin (α‐LA) preferentially permeates the membrane from the mixture at pH 3.2, and the bovine serum albumin (BSA) and lactoferrin (LF) can be separated at pH 6.4 based on the selective adsorption. This work proposes a promising candidate for protein separation by a pH‐responsive membrane.
The effect of Zataria multiflora on respiratory allergic and immunologic disorders, experimental and clinical evidence: A comprehensive review
Authors: Ghorani Vahideh , Beigoli Sima , Khazdair Mahammad Reza , Boskabady Mohammad Hossein 
Published: January 2022

AbstractZataria multiflora (Z. multiflora) is used in traditional and modern medicine for therapeutic objectives especially in respiratory disorders. Therefore, updated experimental and clinical studies on the effects of Z. multiflora on respiratory, allergic, and immunologic disorders are reviewed. Various electronic search engines including PubMed, Science Direct, Scopus, and Google Scholar were searched using appropriate keywords until the end of November 2021. Books, thesis‐hard copies of some articles were also included. The effects of Z. multiflora on respiratory disorders including asthma, chronic obstructive pulmonary disease (COPD), lung infection, and lung cancer were shown. Extracts of Z. multiflora showed the relaxant effect with various mechanisms. The preventive effects of Z. multiflora were also demonstrated by mechanisms such as antioxidant, immunomodulatory, and antiinflammatory properties in the experimental animal models of different respiratory diseases. Carvacrol and thymol are probably responsible for the therapeutic effect of plant among 56 constituents of Z. multiflora. In addition, bronchodilatory and preventive effects of the plant and its constituents on asthma, COPD, lung disorders due to noxious agents and allergic and immunologic disorders were shown in the clinical studies. Therefore Z. multiflora and its constituents may be considered as a preventive and/or relieving therapy in various respiratory diseases.
Effect of poly lactic acid trays on the optical and thermal properties of recycled poly (ethylene terephthalate)
Authors: Thoden van Velzen Eggo Ulphard , Chu Sharon , Molenveld Karin , Jašo Vladislav 
Published: January 2022

AbstractTo progress towards a more sustainable plastic system, multiple interventions are required, including the decoupling from fossil feedstock. Biobased plastics therefore have to be integrated in plastic waste management systems. This should, however, not hamper the performance of current recycling systems. Several studies have previously suggested that the uptake of poly lactic acid (PLA) in this system would endanger poly (ethylene terephthalate) (PET) recycling. This study reports the estimated concentration of PLA in recycled PET and the effect of the presence of this impurity on the optical and thermal properties of recycled PET. The current concentrations of PLA in recycled PET in the Netherlands were modelled to vary between 0% and 0.019%. When the PLA consumption rises, the concentration in recycled PET can be kept below 1% with NIR technologies. The impact of 0.1 to 1% PLA in recycled PET on the optical and thermal properties was negligible. Conversely, the negative impact of 0.1% PVC was substantial. Also the impact of 0.1% EVOH on recycled PET was studied and like PLA found to be limited. This study therefore contravenes previous studies on the impact of PLA on the quality of recycled PET. The difference between this study and the previous studies is that within this study, recycled PET has been processed in agreement with industrial methods. Therefore, in case the sorting and recycling facilities maintain their current careful operation, no negative impact of PLA on PET recycling can be foreseen, and further integration of biobased plastics in the plastic waste management system can be pursued.
Time‐dependent Luenberger‐type interval observer design for uncertain time‐varying systems
Authors: Liu Long‐wen , Xie Wei , Zhang Lang‐wen , Gu Da‐ke 
Published: January 2022

AbstractThis article investigates the state interval observation problem for a class of continuous and discrete‐time linear time‐varying (LTV) systems with bounded uncertainties separately. First, by utilizing both the LTV transformation and the solutions to a type of time‐varying fully‐actuated Sylvester equations, a time‐dependent standard interval observer (IO) is established in a parametric form with some design degrees of freedom. Second, a new time‐dependent structure of Luenberger‐type IOs is proposed to relax the limitation of the LTV transformation‐based design method. Further, its sufficient existence conditions are given in virtue of positive system theory. Meanwhile, a parametric design technique of such an IO for uncertain LTV systems is also raised under rank conditions. Third, the obtained results are extended to the discrete‐time systems. Finally, the correctness and benefits of the proposed methods are verified using some numerical examples.
Veterinary undergraduates’ attitudes to and understanding of clinical skills learning
Authors: Cripps Sarah J. , Vinten Claire E. K. 
Published: January 2022

AbstractBackgroundThe study investigated student understanding of development of their clinical skills learning, focusing on personal experiences of the learning strategies they employ and their experiences of judging their own competency, integrating skills and transferring skill knowledge.MethodsTwenty‐nine veterinary students from two veterinary schools took part in semi‐structured interviews investigating their perceptions of clinical skills importance and development. Thematic analysis of transcribed interviews was used for data analysis.ResultsThemes that were developed were: (1) Students understand clinical skills to be individual technical practical skills but also understand how skills are combined to achieve complex tasks. (2) Students understand the concept of competency development and learn skills, review their progress and self‐audit their skill competency in similar ways throughout the course. (3) Personal confidence, success and positive communication with peers and supervisors are critical to learn clinical skills.ConclusionStudents understand clinical skills learning and use reflective skills widely to track developing skills competency. Prioritising individual feedback within practical sessions and training on integration of skills and communicating with supervisors ahead of clinical placements would be beneficial. Training in clinical skills study techniques, reflection and resilience will enable students to be proactive and to manage their feelings around uncertainty.
Non-Abelian electric field correlator at NLO for dark matter relic abundance and quarkonium transport
Authors: Binder Tobias , Mukaida Kyohei , Scheihing-Hitschfeld Bruno , Yao Xiaojun 
Published: January 2022

AbstractWe perform a complete next-to-leading order calculation of the non-Abelian electric field correlator in a SU(Nc) plasma, which encodes properties of the plasma relevant for heavy particle bound state formation and dissociation, and is different from the correlator for the heavy quark diffusion coefficient. The calculation is carried out in the real-time formalism of thermal field theory and includes both vacuum and finite temperature contributions. By working in theRξgauge, we explicitly show the results are gauge independent, infrared and collinear safe. The renormalization group equation of this electric field correlator is determined by that of the strong coupling constant. Our next-to-leading order calculation can be directly applied to any dipole singlet-adjoint transition of heavy particle pairs. For example, it can be used to describe dissociation and (re)generation of heavy quarkonia inside the quark-gluon plasma well below the melting temperature, as well as heavy dark matter pairs (or charged co-annihilating partners) in the early universe.
D7 moduli stabilization: the tadpole menace
Authors: Bena Iosif , Brodie Callum , Graña Mariana 
Published: January 2022

Abstract
D7-brane moduli are stabilized by worldvolume fluxes, which contribute to the D3-brane tadpole. We calculate this contribution in the Type IIB limit of F-theory compactifications on Calabi-Yau four-folds with a weak Fano base, and are able to prove a no-go theorem for vast swathes of the landscape of compactifications. When the genus of the curve dual to the D7 worldvolume fluxes is fixed and the number of moduli grows, we find that the D3 charge sourced by the fluxes grows faster than 7/16 of the number of moduli, which supports the Tadpole Conjecture of ref. [1]. Our lower bound for the induced D3 charge decreases when the genus of the curves dual to the stabilizing fluxes increase, and does not allow to rule out a sliver of flux configurations dual to high-genus high-degree curves. However, we argue that most of these fluxes have very high curvature, which is likely to be above the string scale except on extremely large (and experimentally ruled out) compactification manifolds.