bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synergistic adsorption of ethyl xanthate and butyl xanthate on pyrite surfaces: A DFT study
Authors: Feng Xinglong , Jian Sheng , Chen Huimin , Chen Jianhua 
Published: July 2024

AbstractPyrite is the most widely distributed sulfide mineral with a wide range of uses, and pyrite is mainly recovered by means of flotation in practical production, and the commonly used flotation collectors are mainly xanthates with good flotation performance. The adsorption behavior of commonly used collectors ethyl xanthate and butyl xanthate on the surface of pyrite is investigated by using the density functional tight bounding theory (DFTB). The results show that when a single reagent acts on the pyrite surface, butyl xanthate has a stronger effect than ethyl xanthate, and the adsorbed mineral surface shows obvious hydrophobicity. The interaction between ethyl xanthate and butyl xanthate had a stronger effect than that of a single reagent, and the simulation of the flotation environment at ordinary temperature using molecular dynamics revealed that the synergistic adsorption of the two different reagents on the surface of pyrite was more hydrophobic, that is, the synergistic adsorption of the combined collector of ethyl xanthate and butyl xanthate on the surface of pyrite was stronger. The results of the study are of great significance for the synergistic effect between the combined collector and the mineral.
Ultrasound‐induced circularly polarized luminescence based on homochiral aggregation of clothespin‐shaped Pt(II) complexes
Authors: Ikeshita Masahiro , Takahashi Koichi , Hara Nobuyuki , Kawamorita Soichiro , Komiya Naruyoshi , Imai Yoshitane , Naota Takeshi 
Published: July 2024

AbstractUltrasound‐induced circularly polarized luminescence (CPL) was achieved using planar chiral, binuclear clothespin‐shaped trans‐bis(salicylaldiminato)platinum(II) complexes. Solutions of the clothespin‐shaped platinum(II) complexes anti‐1a–c in cyclohexane immediately transformed into stable gels upon brief ultrasound irradiation. The ultrasound gels exhibited intense phosphorescent emissions at room temperature, whereas none of the solution exhibited significant emissions under UV light illumination. Interestingly, gels prepared from optically pure complexes exhibited CPL activity at room temperature with an anisotropy factor of |glum| = 1.5–2.6 × 10−3. The emissive gels were readily converted to the original non‐emissive solution upon heating and cooling to room temperature and could be gelled again by ultrasound irradiation. In addition, chromogenic control from green to red emission can be achieved simply by introducing MeO groups at different positions on the aromatic rings.
Bioactive Glass for Applications in Implants: A Review
Authors: Chand Preeti , Malik Megha , Prasad Tulika 
Published: July 2024

AbstractTraditional metallic biomaterials including titanium and its alloys, stainless steel, cobalt‐chromium alloys, magnesium alloys are gold standards for load bearing hard tissue applications, because of adequate mechanical properties such as elastic modulus, ductility and strength for long term support and stability. However, metallic implants suffer from poor osteointegration and early degradation in host body, owing to an array of factors which include stress shieling effect, corrosion, metal toxicity, microbial contamination and low bioactivity. Therefore, to improve integration of implants with host tissue and overall mechanical and biological functions, metallic implants are coated with bioactive glasses (BG). BG are one of the most promising implant coating materials used for bone repair and reconstruction, mainly because of excellent angiogenic, osteoconductive, osteoinductive, corrosion resistance, resorbability, biocompatibility, bioactivity and anti‐microbial properties. Various BG compositions are employed for diverse biomedical applications ranging from wound healing, bone formation, corrosion resistance, drug delivery to scaffolds in tissue engineering and different methods are used for coating BG on implants to enhance stability and bond strength between implant and coating. This narrative review gives a detailed overview on metallic implants, issues of metal alloys when used in implants and how metallic implants are improved by various BG compositions and coating methods. This review provides an updated information on advantages of different BG compositions in implants fabrication in order to address challenges and tailor mechanical and biological properties of implants for future applications.
Photocatalytic Degradation of Toxic Rhodamine B Dye by Green‐Synthesised Activated Carbon‐Supported Cobalt Doped ZnO With Further Assessment of ZnO Nanoparticles in Antimicrobial Applications
Authors: Naveenkumar Ramachandiran , Karthikeyan Balakrishnan , Senthilvelan Sambandam 
Published: July 2024

AbstractThis work investigates the synthesis of ZnO nanoparticles, cobalt (Co)‐doped ZnO, and Activated Carbon (AC) ‐Co doped ZnO via green precipitation technique. AC developed from lotus stems and precipitated by lotus leaf extract. Comprehensive structural, optical, and morphological investigations by FT‐IR, XRD, FE‐SEM, EDX, HR‐TEM, UV‐DRS, PL, and XPS studies are used to characterize the photocatalysts. The ZnO nanoparticles are shown to have a hexagonal phase by XRD examination. The results of the FT‐IR analysis proved that specific chemical bonds exist in the ZnO, Co−ZnO, and AC−Co‐doped ZnO nanocomposites. FE‐SEM images revealed spherical morphology with aggregated, randomly distributed particles with an average size range of ZnO, Co−ZnO and AC−Co−ZnO are 59.55, 42.55, 41.16 nm. The band gap energies of ZnO, Co ‐ZnO, and AC−Co‐ ZnO, are found to be 3.10, 2.57, and 1.94 eV, respectively. Rhodamine B is used as a model contaminant to assess the samples under UV‐light driven photocatalytic effectiveness. The photocatalytic degradation efficiency (%) of the pristine ZnO, Co‐doped ZnO, and AC−Co‐doped ZnO catalysts are increased to 61.76, 74.86, and 91.46 % after 140 minutes of under UV‐light irradiation. Degradation rate constant (k) of the AC−Co−ZnO photocatalyst is found to be greater than that of pristine ZnO and Co−ZnO. Due to the synergistic effect of the AC and Co metal dopants and the spherical morphology of the AC−Co−ZnO sample, which boosted UV‐visible light absorption with reduced charge carrier recombination, resulting in outstanding photocatalytic activity. The study also investigated the bioactive effect of the samples on six bacterial species, revealing that the AC−Co‐doped ZnO nanocomposite has the most enhanced inhibitory effects against gram‐positive and gram‐negative bacteria. Consequently, medical wound dressing materials which helps to promote early healing by preventing microbial contamination.
Inorganic CsPbI2Br as Potential Absorber Layer for Perovskite Solar Cells: Theoretical and Experimental Study
Authors: Ahmad Khursheed , Ahmad Khan Rais , Shakhawat Hossain Mohammad , Sonic Md Muminur Rahman 
Published: July 2024

AbstractHerein, we reported the numerical simulation studies of the metal halide perovskite solar cells (MHPSCs) using solar cell capacitance one‐dimensional (SCAPS‐1D). CsPbI2Br perovskite has been adopted as the absorber layer and thickness of the absorber layer has been optimized to improve the performance of the simulated MHPSCs. Various electron transport layers (ETLs) and hole transport layers (HTLs) were explored for the optimization of high performance MHPSCs. The simulation studies demonstrated excellent efficiency of 20.22 % for the optimized device structure of FTO/SnO2/CsPbI2Br/PTAA/Au using SCAPS‐1D. The experimental study was also conducted to explore the potential of the simulation investigations. The MHPSCs device (FTO/SnO2/CsPbI2Br/PTAA/Au device) was fabricated under controlled humidity (40 %). The CsPbI2Br layer was grown on FTO substrate and its phase purity, crystallinity, surface morphological, and optical properties were determined by using X‐ray diffraction, and ultraviolet‐visible absorption spectroscopy. The fabricated MHPSCs showed decent efficiency of 14.4 %.
Plasmon‐Enhanced Light Absorption Below the Bandgap of Semiconducting SnS2 Microcubes for Highly Efficient Solar Water Evaporation
Authors: Cheng Pengfei , Wang Hongguang , Wang Honglei , Wang Dong , van Aken Peter A. , Schaaf Peter 
Published: July 2024

AbstractSemiconducting materials show high potential for solar energy harvesting due to their suitable bandgaps, which allow the efficient utilization of light energy larger than their bandgaps. However, the photon energy smaller than their bandgap is almost unused, which significantly limits their efficient applications. Herein, plasmonic Pd/SnS2 microcubes with abundant Pd nanoparticles attached to the SnS2 nanosheets are fabricated by an in situ photoreduction method. The as‐prepared Pd/SnS2 microcubes extend the light‐harvesting ability of SnS2 beyond its cutoff wavelength, which is attributed to the localized surface plasmon resonance (LSPR) effect of the Pd nanoparticles and the 3D structure of the SnS2 microcubes. Pd nanoparticles can also enhance the light absorption of TiO2 nanoparticles and NiPS3 nanosheets beyond their cutoff wavelengths, revealing the universality for promoting absorption above the cutoff wavelength of the semiconductors. When the plasmonic Pd/SnS2 microcubes are integrated into a hydrophilic sponge acting as the solar evaporator, a solar‐to‐vapor efficiency of up to 89.2% can be achieved under one sun. The high solar‐to‐vapor conversion efficiency and the broad applicability of extending the light absorption far beyond the cutoff wavelength of the semiconductor comprise the potential of innovative plasmonic nanoparticle/semiconductor composites for solar desalination.
Ultra‐Long Carrier Lifetime of Spiral Perovskite Nanowires Realized through Cooperative Strategy of Selective Etching and Passivation
Authors: Zheng Cheng , He Jia , Liu Wei , Liu Zhiwen , Xu Linfeng , Cao Zetan , Jiao Chuangwei , Chen Bin 
Published: July 2024

AbstractSpiral inorganic perovskite nanowires (NWs) possess unique morphologies and properties that allow them highly attractive for applications in optoelectronic and catalytic fields. In popular solution‐based synthesis methodology, however, challenges persist in simultaneously achieving precise and facile control over morphological twisting and fantastic carrier lifetimes. Here, a cooperative strategy of concurrently employing selective etching and ligand engineering is applied to facilitate the formation of spiral CsPbBr3 perovskite NWs with an ultralong carrier lifetime of ≈2 µs. Specifically, a novel amine of 1‐(p‐tolyl)ethanamine is introduced to functionalize as both a selective etchant and the source of forming an effective ligand to passivate the exposed facets, favoring the structural twisting and the enhancement of carrier lifetimes. The twisting behaviors are dependent on the etch ratios, which are essentially associated with the densities of grain boundaries and dislocations in the NWs. The ultralong carrier lifetime and long‐term stability of the spiral NWs open up new possibilities for all‐inorganic perovskites in optoelectronic and photocatalytic fields, while the cooperative synthesis strategy paves the way for exploring complex spiral structures with tunable morphology and functionality.
Amino‐Functionalized Metal Organic Framework‐Based Dispersive Micro‐Solid‐Phase Extraction Coupled With HPLC for Sensitive Quantification of Bisphenol A and Alkyl Phenols in Aqueous Samples
Authors: Verma Rajpal , Dhingra Gaurav , Singh Gurdeep , Dureja Nidhi , Malik Ashok Kumar 
Published: July 2024

ABSTRACTA sensitive analytical procedure for simultaneous extraction and determination of bisphenol A and alkyl phenols, namely, 4‐sec‐butylphenol, 4‐tert‐butylphenol, and 4‐tert‐amylphenol from aqueous samples with metal–organic framework (MOF)‐based dispersive micro‐solid‐phase extraction (D‐µSPE) and high‐performance liquid chromatography (HPLC) technique is developed. Sample contaminants were preconcentrated with amino‐functionalized aluminum MOF and later eluted with acetonitrile. The reconstituted sample was subjected to HPLC analysis. Various procedural parameters related to D‐µSPE were optimized. Under optimized preconcentration and chromatographic conditions, calibration curves with excellent linearity (R2 > 0.9986) in the working range of 0.25–100 ng mL−1 were prepared. Limit of detection (S/N = 3) for every analyte within the range of 0.020–0.022 ng mL−1 was obtained. Analyte's recovery 91.16%–97.01% (RSD = 1.02–3.01) for intraday and 89.86%–95.83% (RSD = 1.15–3.13) for inter‐day analysis was obtained from real water samples.
Coherence – The What, the Why, and the How
Authors: Canrinus Esther T. 
Published: July 2024

AbstractIn this chapter, what is understood as coherence and how this construct is conceptualized in this book is discussed. First, different facets of the disco ball called coherence are presented as well as supplemented with new ones. Next, a discussion is offered as to why attention is being paid to perceived coherence in teacher education research. Although many researchers have investigated student teachers’ perceptions, this should not be seen as the final outcome. Investigating the implications of coherent programs is suggested as a further avenue to be pursued in research. Lastly, additional suggestions for future research into coherence in teacher education are presented before providing an overview of the insights gained from this book.
Assessing Student Perceptions of Professionalization Measures and Coherence after the 2011 French Curriculum Reform
Authors: De Smet Cindy , Schmider Christine 
Published: July 2024

AbstractThis chapter examines the 2011 curriculum reform in France, which aimed to professionalize the teacher training system and establish national frameworks for teacher competencies in primary and secondary schools. Inspired by European guidelines for teacher education, this reform represented a paradigm shift in the French system, integrating pedagogical knowledge and pedagogical content knowledge alongside traditional content knowledge. The result was a closing of the professional orientation gap with other European teacher education systems and a greater vocational coherence.
Co-Constructing Multidisciplinary Coherence in Subject Teacher Education: Students’ Reflections in Group Discussions
Authors: Roiha Anssi , Heinonen Pilvi 
Published: July 2024

AbstractThis article examines how disciplinary coherence is (co)constructed at the student-oriented level in pedagogical studies at the University of Turku. Based on group discussion data, we analyze how coherence is (co)constructed in planning a mutual multidisciplinary learning module on the topic of sustainable development. The focus is on how students talk about their own discipline and its specific nature in relation to other disciplines and the multidisciplinary modules. From the perspective of (co)constructing coherence in relation to multidisciplinary modules, three different types of coherence building discourses were identified from the data. It was interesting how, on the one hand, one’s own discipline and subject boundaries seem to be valued, and on the other, how this subject-orientation is questioned and seen as problematic. Based on our findings, we discuss how the participants’ discourses of multidisciplinarity relate to the conceptualization of different dimensions of disciplinary coherence (i.e., inter-, multi- and transdisciplinary) and what this means for the development of teacher education.
Remarks on geometric engineering, symmetry TFTs and anomalies
Authors: Del Zotto Michele , Meynet Shani Nadir , Moscrop Robert 
Published: July 2024

Abstract
Geometric engineering is a collection of tools developed to establish dictionaries between local singularities in string theory and (supersymmetric) quantum fields. Extended operators and defects, as well as their higher quantum numbers captured by topological symmetries, can be encoded within geometric engineering dictionaries. In this paper we revisit and clarify aspects of these techniques, with special emphasis on ’t Hooft anomalies, interpreted from the SymTFT perspective as obstructions to the existence of Neumann boundary conditions. These obstructions to gauging higher symmetries are captured via higher link correlators for the SymTFT on spheres. In this work, we give the geometric engineering counterpart of this construction in terms of higher links of topological membranes. We provide a consistency check in the context of 5D SCFTs with anomalous 1-form symmetries, where we give two independent derivations of the anomaly in terms of higher links, one purely field theoretical and the other purely geometrical. Along the way, we also recover the construction of non-invertible duality defects in 4D $$ \mathcal{N} $$
N
= 4 SYM from a geometric engineering perspective.
Developing theory by engaging in collaborative transformations of educational practice
Authors: Gylling-Andersen Thomas 
Published: July 2024

AbstractThis article presents a methodological approach to educational psychology research in which researchers engage in collaborative transformations of educational practice while developing theory concerning the societal and scientific relevance of these transformative processes. The theoretical inspiration for this approach stems from German-Scandinavian Critical Psychology, Transformative Activist Stance, and the Change Laboratory Framework — three research traditions with common roots in cultural-historical psychology and activity theory. Empirically, the article is based on a transformative research collaboration between the author and a 2nd grade teacher at a Danish municipal primary school. The aim was to develop an intervention framework to support the development of cultures of care within communities of children, while simultaneously producing theoretical knowledge about the conditions that enable the development of such cultures within the contradictory and dilemma-filled historical and socio-political context of Danish municipally governed schools. Empirical excerpts show how a novel intervention principle emerged as a synthesis of the researcher and the schoolteacher’s respective, seemingly contradictory knowledge contributions. Against a backdrop of historical-institutional analyses, it is argued that this intervention principle represents a novel scope of possibilities for educational professionals struggling to manoeuvre within the various contradictions and common problems inherent to Danish municipally governed schools. In the discussion, it is argued that the transformative approach presented here seems particularly promising for the democratisation of knowledge production. This assertion is supported by a demonstration of how the approach is particularly flexible to continuously integrate critique, contributions, and contestations from co-researchers within educational practice, adults as well as children.
Verification of correction factors for determining mean annual levels of radon in underground facilities
Authors: Fijałkowska-Lichwa Lidia , Olszewski Jerzy 
Published: July 2024

AbstractThe first verification of a tool developed to improve the work of controlling bodies, managers and employees of underground facilities subject to radiation protection requirements was conducted. The recommended values of correction factors were verified using archival results of measurements conducted for the Institute of Occupational Medicine in Łódź in seven underground workplaces in Poland over exposure periods of a month (10,8678 data) and a quarter of a year (53,688 data). In a cave two groups of monthly factors, produced estimates with almost 70% to 99% consistency with the measured values. Along tourist routes located in mines, a similar fit was obtained using three groups of correction factors for measurement results from March, June and July. In the extraction areas of active underground mines, the best fit was produced by factors calculated as averages for spaces varying in the degree of insulation and ventilation method, while in other departments of mining plants, by correction factors recommended for facilities equipped with mechanical ventilation systems. All the quarterly correction factors produced the best fit between estimated mean annual concentrations and measurement results obtained in the second quarter of the calendar year. A wide variation in result consistency (from 20–30 to 65–80%) obtained for two underground tourist routes in the fourth quarter of the year demonstrates that it is best not to adopt results from this measurement period (October-December) for estimating mean annual radon concentration using the set of quarterly correction factors.
Value-Able Valuers: Anthropogenic Climate Change and Expanding Community to the “Radically Other”
Authors: Gendreau Megs S. 
Published: July 2024

AbstractAnthropogenic climate change creates unique challenges for policy and ethics, but also new opportunities for conceptualizing moral community. Through the lens of valuing, I develop a framework for approaching climate change through the lens of expanding those whom we consider relevant to our own lives and evaluative processes. Distant humans are an important to this expansion, but the ultimate goal includes non-humans in our moral community. In becoming more receptive to the interests of those very unlike ourselves, we create opportunities for greater resilience, both for ourselves and for other organisms and ecosystems.
Mid-term clinical outcomes of left bundle branch area pacing compared to accurate right ventricular septal pacing
Authors: Okubo Yousaku , Sakai Takumi , Miyamoto Shogo , Uotani Yukimi , Oguri Naoto , Furutani Motoki , Miyauchi Shunsuke , Okamura Sho , Tokuyama Takehito , Nakano Yukiko 
Published: July 2024

Abstract

Background
Although left bundle branch area pacing (LBBAP) reportedly results in fewer adverse outcomes after implantation than conventional stylet-guided right ventricular septal pacing (RVSP), previous studies have not compared LBBAP with accurate RVSP using a delivery catheter. The aim of this study was to compare clinical outcomes between LBBAP and accurate RVSP among patients with atrioventricular block (AVB).

Methods
This single-center observational study enrolled 160 patients requiring RV pacing due to symptomatic AVB between September 2018 and December 2021. Primary composite outcomes included all-cause death, hospitalization due to heart failure (HF), and upgrading to biventricular pacing. Secondary composite outcomes included any procedural and postprocedural complications.

Results
Overall, 160 patients were analyzed (LBBAP, n = 81; RVSP, n = 79). No significant differences in baseline characteristics were observed between the two groups. The RV pacing burden at 1 year after implantation was 90.8% ± 20.4% and 86.2% ± 22.6%, respectively (p = 0.21). During a mean follow-up of 840 ± 369 days, the incidence of the primary outcome was significantly lower with LBBAP (4.9%) compared to RVSP (22.8%) (Log-rank p = 0.02). There was no significant difference in the incidence of the secondary outcome between the two groups (3.7% vs. 5.1%, p = 0.65). In the multivariate analysis, baseline QRS duration, RV pacing burden, and LBBAP were independently associated with the primary outcome (baseline QRS duration: hazard ratio [HR], 1.01; 95% confidence interval [CI], 1.00–1.02; p < 0.001; RV pacing burden: HR, 1.01; 95% CI, 1.00–1.02; p < 0.001; LBBAP: HR, 0.45; 95% CI, 0.31–0.64; p < 0.001).

Conclusion
In patients requiring frequent RV pacing, LBBAP was associated with reduced adverse clinical outcome compared to accurate RVSP using a delivery catheter.

Graphical Abstract