bluuebunny/crossref_metadata_2025_split huggingface dataset:
Understanding health‐related quality of life trajectories among older adults with diabetes mellitus: Mixed methods research
Authors: Park Sunhee , Lee Taewha 
Published: August 2023

AbstractAimTo examine health‐related quality of life trajectories among older adults with diabetes mellitus (DM).DesignA sequential explanatory mixed method study protocol.MethodsIn the quantitative phase, health‐related quality of life trajectory over 5 years, from 2009 to 2013, of a national representative sample (N = 440) of older adults with DM was analysed using group‐based modelling. Next, a qualitative multiple case study (N = 10) was conducted between November 2017 and April 2018. In the mixed phase, by linking the quantitative and qualitative data, similarities and differences among the four trajectories were identified.ResultsFour distinctive health‐related quality of life trajectories could be distinguished: high then decrease, high stable, medium stable and low then increase. These differed in attitude towards DM, self‐management of DM‐related tasks, comorbidity‐related health‐related quality of life, coping with DM and financial concerns about medical needs.Relevance to Clinical PracticeOur results help illuminate the heterogeneity of health‐related quality of life trajectories in older adults with DM. This research may help healthcare providers understand the need to assess the HR–QoL comprehensively and promote HR–QoL for older adults with DM.
Monitoring the salt stability and solvent swelling behavior of PAH‐based polyelectrolyte multilayers by quartz crystal microbalance with dissipation
Authors: Konyalı Eymen , Cengiz Hacer Yeşim , Müftüler Ayça , Deligöz Hüseyin 
Published: August 2023

AbstractThis contribution is aimed to examine the layer stability and solvent swelling behavior of polyelectrolyte multilayers (PEMs) obtained from poly(allylamine hydrochloride) (PAH), poly(styrene sulfonic acid sodium salt) (PSS), and poly(acrylic acid) against different salt solutions using Quartz Crystal Microbalance with Dissipation in terms of the solution concentration, charge type of the top layer, and PEM structure. In general, all multilayers remain stable against MgCl2 and NaCl, phosphate buffer saline, ionic liquid, and solvents, namely methanol and heptane, while 4.5‐bilayered PAH‐PSS film displays partial layer decomposition against 1 M NaOCl. Additionally, it is found that the stability of Layer‐by‐Layer (LbL) films remains unaffected by the surface charge type, although variations in the adsorbed and desorbed amounts, as well as the viscoelastic properties, occur during the salt passage and rinsing steps. Along the salt exposure, changes in dissipation (ΔD) significantly increase because of the fast diffusion of ions through the multilayers but return to their initial value after washing. Especially high and reversible ΔD values of the PEMs against methanol are evaluated as swelling in methanol without chemical disintegration. This behavior can be attractive for solvent‐induced release behavior for the LbL‐assembled films or microcapsules.Highlights
Multilayer stability and solvent swelling of PEMs are discussed using QCM‐D.
PAH‐PSS films have the highest stability against salt solutions.
PAH‐PAA films exhibited significant changes in dissipation values.
PEMs did not show multilayer stability against NaOCl solution.
(PAH‐PSS)5 film was stable and had swelling/de‐swelling capability against methanol.
Mechanosensitive ion channels MSL8, MSL9, and MSL10 have environmentally sensitive intrinsically disordered regions with distinct biophysical characteristics in vitro
Authors: Flynn Aidan J. , Miller Kari , Codjoe Jennette M. , King Matthew R. , Haswell Elizabeth S. 
Published: August 2023

AbstractIntrinsically disordered protein regions (IDRs) are highly dynamic sequences that rapidly sample a collection of conformations over time. In the past several decades, IDRs have emerged as a major component of many proteomes, comprising ~30% of all eukaryotic protein sequences. Proteins with IDRs function in a wide range of biological pathways and are notably enriched in signaling cascades that respond to environmental stresses. Here, we identify and characterize intrinsic disorder in the soluble cytoplasmic N‐terminal domains of MSL8, MSL9, and MSL10, three members of the MscS‐like (MSL) family of mechanosensitive ion channels. In plants, MSL channels are proposed to mediate cell and organelle osmotic homeostasis. Bioinformatic tools unanimously predicted that the cytosolic N‐termini of MSL channels are intrinsically disordered. We examined the N‐terminus of MSL10 (MSL10N) as an exemplar of these IDRs and circular dichroism spectroscopy confirms its disorder. MSL10N adopted a predominately helical structure when exposed to the helix‐inducing compound trifluoroethanol (TFE). Furthermore, in the presence of molecular crowding agents, MSL10N underwent structural changes and exhibited alterations to its homotypic interaction favorability. Lastly, interrogations of collective behavior via in vitro imaging of condensates indicated that MSL8N, MSL9N, and MSL10N have sharply differing propensities for self‐assembly into condensates, both inherently and in response to salt, temperature, and molecular crowding. Taken together, these data establish the N‐termini of MSL channels as intrinsically disordered regions with distinct biophysical properties and the potential to respond uniquely to changes in their physiochemical environment.
Energy efficient thermochromic smart windows based on polymers and metal oxides
Authors: Chen Guoqi , Zhang Yunting , Chen Yongming , Fu Jun 
Published: August 2023

AbstractThermochromic energy efficient windows dynamically regulate building energy exchange by changing their optical transmittance. Recently, thermochromic materials with different chromic mechanisms are developed to fulfill smart window demands. Advanced fabrication technologies for smart windows also lead to building energy efficiency optimization. In this Perspective, representative mechanisms and performances of promising thermochromic systems, including vanadium dioxide, hydrogels, perovskites, ionic liquids, and liquid crystals, are discussed. Furthermore, the emerging technology of radiative cooling is emphasized for future building energy saving. Building temperature regulation and energy saving based on smart windows will make great impacts on the global low carbon economy.
Demography of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) reared on elicitor‐treated tomato plants with an innovative comparison of projected population sizes and application of the multinomial theorem for population survival
Authors: Gharekhani Gholamhossein , Salekebrahimi Hamideh , Chi Hsin 
Published: August 2023

AbstractBACKGROUNDBecause of the considerable damage caused by tomato leafminer in tomato crops, the use of integrated methods is recommended. In this study, the effect of three different elicitors, methyl jasmonate, salicylic acid and ascorbic acid, on the life table parameters of Tuta absoluta was evaluated. A paired bootstrap test and different bootstrap percentiles were used to compare projected population sizes on specific dates. Survival probabilities were calculated by innovatively linking life tables and multinomial theorem.RESULTSPreadult duration and mortality significantly increased, and the net reproductive rate (R0), intrinsic rate of increase (r), and finite rate of increase (λ) significantly decreased in all elicitor treatments. The lowest fecundity (F = 71.89 eggs/female) was observed in the salicylic acid treatment, with an R0 value of 13.48 offspring/individual, r of 0.0932 d−1, and λ of 1.0977 d−1. The population projection revealed the stage structure of T. absoluta during population growth, which was significantly reduced by the elicitor treatments. The survival probability of bootstrap samples was significantly lowered, whereas the extinction probabilities increased in elicitor treatments compared with control when the survival criterion was set to two fertile pairs.CONCLUSIONOur results demonstrated that the application of elicitors could reduce the risk of T. absoluta damage. Furthermore, population projection based on life tables is applicable to obtain the frequency distribution of the population size at different times. Combined application of life tables and multinomial theorem can be used to calculate the risk of pest emergence. © 2023 Society of Chemical Industry.
SARS‐CoV‐2 viral dynamic modeling to inform model selection and timing and efficacy of antiviral therapy
Authors: Zhang Shengyuan , Agyeman Akosua A. , Hadjichrysanthou Christoforos , Standing Joseph F. 
Published: August 2023

AbstractMathematical models of viral dynamics have been reported to describe adequately the dynamic changes of severe acute respiratory syndrome‐coronavirus 2 viral load within an individual host. In this study, eight published viral dynamic models were assessed, and model selection was performed. Viral load data were collected from a community surveillance study, including 2155 measurements from 162 patients (124 household and 38 non‐household contacts). An extended version of the target‐cell limited model that includes an eclipse phase and an immune response component that enhances viral clearance described best the data. In general, the parameter estimates showed good precision (relative standard error <10), apart from the death rate of infected cells. The parameter estimates were used to simulate the outcomes of a clinical trial of the antiviral tixagevimab‐cilgavimab, a monoclonal antibody combination which blocks infection of the target cells by neutralizing the virus. The simulated outcome of the effectiveness of the antiviral therapy in controlling viral replication was in a good agreement with the clinical trial data. Early treatment with high antiviral efficacy is important for desired therapeutic outcome.
Application of a porous graphitic carbon column to carbon and nitrogen isotope analysis of underivatized individual amino acids using high‐performance liquid chromatography coupled with elemental analyzer/isotope ratio mass spectrometry
Authors: Sun Yuchen , Ogawa Nanako O. , Ishikawa Naoto F. , Blattmann Thomas M. , Takano Yoshinori , Ohkouchi Naohiko 
Published: August 2023

RationaleIsolation of underivatized amino acids (AAs) using high‐performance liquid chromatography (HPLC) is becoming a popular method for carbon (δ13C) and nitrogen isotope (δ15N) analyses of AAs because of the high analytical precision and for performing dual‐isotope analysis. However, some AAs in natural samples, especially small, hydrophilic AAs, are not suitably separated using reversed‐phase columns (e.g., C18) and ion‐exchange columns (e.g., Primesep A).MethodsWe developed a new method for HPLC using a porous graphitic carbon column for the separation of nine hydrophilic AAs. After purification, δ13C and δ15N values of AAs were determined using elemental analyzer/isotope ratio mass spectrometry (EA/IRMS). We demonstrated the application of this method by determining δ13C and δ15N values of individual hydrophilic AAs in a biological sample, the muscle of blue mackerel (Scomber australasicus).ResultsChromatographically, the baseline separation of hydrophilic AAs was achieved in both the standard mixture and the biological sample. We confirmed that δ13C and δ15N values of AA standards remained unchanged during the whole experimental procedure. The δ13C values of AAs in mackerel muscle are also in good agreement with the values obtained using another verified method for δ13C analysis.ConclusionsThe good separation performance of hydrophilic AAs and the reliability of δ13C and δ15N analyses of individual AAs using the porous graphite column offer a significant advantage over conventional settings. We suggest that, in the future, the HPLC × EA/IRMS method can be used for reliable δ13C and δ15N analyses of AAs in natural samples.
‘Teacher data literacies practice’ meets ‘pedagogical documentation’: A scoping review
Authors: Kim Mi Song , Yu Fengcaho 
Published: August 2023

AbstractIn teacher education, there is a growing need for teachers to become data literate by collecting a variety of data on student learning to assess student progress and inform instruction. Research on pedagogical documentation in education, in particular early childhood education, has been undertaken to make students' learning visible by documenting multiple forms of student data. Although the notion of pedagogical documentation could be broadened in teacher data literacies practice, little is known about teacher data literacies practice in implementing pedagogical documentation. To fill this research gap, we performed a scoping review of the studies to investigate the landscape of teacher data literacies practice with pedagogical documentation published from 2000 to 2020. Our scoping review employed Arksey and O'Malley's methodological framework and identified 62 studies in our review. Our analysis provided an overview of the existing studies on teacher data literacies practice with pedagogical documentation. The implications of its findings were discussed.
Context and implicationsRationale for this studyDespite the increased demand for teachers to make data‐driven and evidence‐based decisions in teaching, to our knowledge this is the first review of teacher data literacies in implementing pedagogical documentation.Why the new findings matterOur scoping review identifies knowledge gaps in teachers' pedagogical documentation in diverse K‐12 settings, particularly in developing countries.Implications for educational researchers and policy makersIt also calls for more classroom‐based research on teacher data literacies practice in implementing pedagogical documentation and the need to further understand the relationship between teacher data literacies and pedagogical documentation. These implications are relevant for both educational researchers and teachers.
Influence of Clay on Structure, Thermal Properties and Mechanics of Poly(vinyl acetate)/Maghnite Nanocomposites.
Authors: Mrah Lahouari , Khiati Zoulikha 
Published: August 2023

AbstractPoly (vinyl acetate) (PVAC) based on Algerian clay maghnite was synthesized by an emulsion polymerization process in the present study. The prepared nanocomposites were analyzed by means of FTIR, UV‐visible, XRD, AFM, SEM, TGA and optical microscopy. The results obtained showed a semi‐crystalline structure of the composite system revealed by the XRD scheme. The addition of maghnite to the fillers up to 5 wt % has been shown to reduce the optical band gap energy, while the refractive index is greatly increased. The presence of maghnite in PVAC leads to an increase in surface roughness as measured by AFM analysis. The thermal stability of PVAC was significantly improved by the presence of maghnite in the polymer matrix. The mechanical test results indicate that the tensile strength of the polymer composites was improved by the increase in the concentration of clay platelets. The electrical property data show that as the frequency increases, the dielectric constant decreases and the electrical conductivity increases. The loading content of composites also influences their electrical and mechanical properties. This widens the range of applications for these materials in flexible electronics and in conductive coatings.
Removal of Cationic Crystal Violet dye using Zeolite‐ Embedded Carboxymethyl Tamarind Kernel Gum (CMTKG) based Hydrogel Adsorbents
Authors: Rani Indu , Warkar Sudhir G. , Kumar Anil 
Published: August 2023

AbstractIn this research paper, various formulations of zeolite‐loaded carboxymethyl tamarind kernel gum (CMTKG) based hydrogels were synthesized and utilized as a potential adsorbent for the removal of crystal violet (CV) dye. The swelling capacity of all the synthesized hydrogels was investigated and the composition of hydrogel which exhibited maximum swelling was used for the characterization and dye removal experiment. The CV dye was chosen as a model dye for the dye removal experiment. The structure of zeolite and zeolite embedded hydrogel was elucidated by XRD, FTIR, FE‐SEM, EDX and elemental papping techniques. The adsorption experiment was investigated by varying the CV concentration, amount of hydrogel adsorbent, temperature, pH of the dye solution, adsorption time, and ionic strength. The Langmuir and Freundlich isotherm models were used to fit the adsorption data and it was observed that the data fitted well with the Langmuir model. Moreover, hydrogel‘s maximum dye adsorption efficiency was found at 123.60 mg g−1. The adsorption kinetic studies were followed by pseudo‐ first‐order and intraparticle diffusion kinetic models. In addition, regeneration studies were performed for the best adsorbent hydrogel using ethanol solvent and the result concluded the desorption efficiency of hydrogel (82 %) over four desorption cycles.
Antimicrobial, Photocatalytic, and Non‐Enzymatic Glucose Sensors Applications of Nanoplate‐Structured CuO:rGO Nanocomposites**
Authors: Preethi Thangavel , Pachamuthu Muthusamy Poomalai , Senthil Karuppanan , Bellucci Stefano 
Published: August 2023

AbstractIn the current work, reduced graphene oxide (rGO) layers (20, 40, 60, and 80 mg) are decorated over the surface of copper oxide (CuO) nanoparticles using a simple and in‐situ hydrothermal reduction method. The notable variation in the XRD peak intensity of CuO:rGO samples indicates the formation of nanocomposite. HRTEM and FESEM analysis reveal a nanoplate‐like morphology with uniform particle distribution. Further, the nanocomposites are characterized using FTIR, DRS UV Visible, and XPS techniques. Here, multi‐functional applications of the synthesized nanocomposites are investigated through photocatalytic dye degradation, antimicrobial, and electrochemical sensing analyses. The photocatalytic activity of synthesized CuO:rGO nanocomposites with hydrogen peroxide (H2O2) showed higher efficiency (98 %) than pure CuO. The effects of pH, various scavengers, and different dyes on the degradation efficiencies of CuO:rGO nanocomposites are also investigated. Using the agar well diffusion method, these nanocomposites exhibited a zone of inhibition value of 32 mm against both gram positive (Bacillus subtilis) and gram negative (Escherichia coli) bacterial strains when compared to pure rGO and CuO nanoparticles. Also, nanocomposites are found to be suitable for non‐enzymatic glucose sensing with a detection limit in the range from 0.05 to 4 mM, as evidenced from the cyclic voltammetry (CV) analysis.
Selective Synthesis of 3‐Chalcogenylindoles via Silver‐Catalyzed Direct Chalcogenation of Indoles with Dichalcogenides
Authors: Benchawan Thewika , Maneewong Jesada , Saeeng Rungnapha 
Published: August 2023

AbstractAn efficient and convenient strategy for selective synthesis of 3‐selenyl and 3‐sulfenyl indoles was developed using silver(I)nitrate as catalyst under aerobic and mild reaction conditions. This approach is scalable, economical and eco‐friendly furnishing the corresponding indoles in good to high yields in a short reaction time.
Frontal Polymerization for Decomposable Lignin‐Loaded Polymer Materials towards Water Purification
Authors: Qu Xiao‐Wei , Li Qing , Yu Shuzhen , Shen Haixia , Chen Su 
Published: August 2023

AbstractRapid population growth and water contamination have led to a shortage of freshwater, making it crucial to find sustainable methods for water purification. Solar‐powered evaporation is an eco‐friendly approach that uses solar energy to facilitate water evaporation and separate it from contaminants. Recent studies have focused on the development of solar absorber systems that incorporate photo‐thermal materials into a porous structure to enhance the efficiency of solar‐to‐thermal conversion and elevate water evaporation capacities. However, there is a lack of studies on simple and quick fabrication methods for solar absorber materials that minimize storage constraints in real‐world applications. Frontal polymerization (FP) technology is a promising solution that offers straightforward operation, minimal energy consumption, and rapid reaction for porous polymers. In this study, a decomposable and photo‐thermal composite polymer(LI/(P(DCPD‐co‐DTD))) is synthesized using FMORP, incorporating lignin fillers to improve the light absorption capacity and photothermal performance beneficial for water purification. The water evaporation rate can reach as high as 1.63 kg m−2 h−1. This composite polymer is expected to promote solar‐driven water purification in practical applications.
Aqueous Phase Organocatalytic Multicomponent Green Synthesis of 2‐Amino‐4H‐Chromenes
Authors: Thangalipalli Swathi , Bandalla Siddarama Goud , Gavinolla Vijayalaxmi , Panduga Ramaraju , Neella Chandra Kiran 
Published: August 2023

AbstractAn efficient and green method for the synthesis of 4H‐chromenes via an organocatalytic three‐component one‐pot reaction between active methylene compound, aromatic aldehydes and resorcinol with high yields (upto 98 %) in water is reported. To the best of our knowledge, ours is the first report of study of MCR on resacetophenone for the synthesis of 2‐amino‐4H‐chromenes. The organo catalyst DMAP was recovered and reused for 6 times without substantial decrease in the yields, and the products were purified just by recrystallization from ethanol which avoids purification through column. This easy to handle method reduces the use of many hazardous catalysts and adverse reaction conditions and utilizes simple, readily accessible and recyclable catalyst. Single crystal X‐ray clearly confirms the structures of synthesized chromenes.
Dinaphthalimide‐Glycol‐Based Fluorescent Powder for Imaging of Latent fingerprints: Case Studies in Fingerprinting
Authors: Kumar Sanjeev , Singh Prabhpreet 
Published: August 2023

AbstractThe DNPG, which consists of naphthalimides at terminal positions of pentaethylene glycol chain, was non covalently doped on nanoporous silica (SiO2) and has been used as fluorescent powder for imaging of latent fingerprints (LFPs) on porous and non‐porous surfaces. We have successfully demonstrated the application of DNPG@SiO2 fluorescent powder for visualization of level 1 (indexing), level 2 (minutiae points) and level 3 (sweat pores). We also attempted to establish the identity of the subject (person) in case studies on 12 subjects. The CIE‐1931 coordinates (x,y) of 0.2, 0.3 of DNPG showed green colour with 49.4 % purity and it possessed low cytotoxicity (IC50=139.5 uM).
Effect of hybrid fibers on the flexural performance of high‐strength recycled aggregate concrete beams
Authors: Niu Haicheng , Li Bohan , Gao Jinlong , Xie Shu 
Published: August 2023

AbstractFibers are mixed within reinforced high‐strength recycled aggregate concrete (RHRAC) beams to improve their flexural performance. This study experimentally and analytically investigates the effect of using RAC combined with polyvinyl alcohol fiber (PVAF) and steel fiber (SF) on the flexural performance of RHRAC beams. A total of 11 RHRAC beams (150 × 300 × 2600 mm3) are manufactured and subject to four‐point flexural testing. The parameters of the concrete are investigated, including the volume content of the PVAF and SF. The experimental results show that SF increases the flexural strength of RHRAC beams more than PVAF does. Conversely, the effect of PVAF on deformability is more significant than that of SF. In addition, the positive influences of hybrid fiber (PVAF and SF) on the crack load, flexural capacity, and deformation capacity are superior to those of single‐mixed PVAF or SF. Three different specifications are used to calculate the flexural capacity of the test beams, among which, JGJ/T465‐2019 is the most reliable.