bluuebunny/crossref_metadata_2025_split huggingface dataset:
New chelating N‐heterocyclic carbene palladium complexes immobilized on magnetic nanoparticles: Synthesis, characterization, and catalytic properties
Authors: Yang Liangru , Liu Yaowen , Diao Xiaoqiong , Zeng Xianggui , Xiao Yongmei , Yuan Jinwei , Mao Pu 
Published: August 2024

Two chelating N‐heterocyclic carbene (NHC) palladium complexes 3a‐b containing N‐(3‐bromopropyl)‐N′‐thioether difunctionalized imidazol‐2‐ylidene were synthesized by direct metalation of the precursor imidazolium salts and characterized by NMR and HR‐MS. The molecular structure of 3a has been further characterized unambiguously by X‐ray single crystal analysis. The subsequent substitution reaction with amine‐functionalized magnetic nanoparticles (MNPs‐NH2) afforded two highly active, stable, and recyclable magnetic nanoparticle supported NHC palladium complexes, MNPs‐NHC‐Pd I‐II, which were characterized by Fourier transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP‐OES), scanning electron microscopy (SEM), and X‐ray photoelectron spectroscopy (XPS). The MNPs‐NHC‐Pd complexes exhibited high catalytic activity in the Suzuki–Miyaura cross‐coupling reaction of aryl bromides with arylboronic acids, as well as in the reduction of toxic 4‐nitrophenol (4‐NP) under mild conditions. The recycling experiment of MNPs‐NHC‐Pd I in the Suzuki–Miyaura cross‐coupling reaction between 4‐bromoanisole and phenylboronic acid showed that the yield of 4‐methoxybiphenyl remained high at 88% within 0.5 h at 60 °C, indicating that the catalytic activity was well maintained for at least 10 cycles.
Comparative study of the self‐assembly and thermal properties of six commercial sucrose esters
Authors: De Witte Fien , Van Bockstaele Filip , Dewettinck Koen 
Published: August 2024

AbstractIn this study six sucrose esters (SEs) with varying mono‐ester content, and thus varying hydrophilic‐to‐lipophilic balance (HLB) were studied. Wide‐ and small‐angle X‐ray scattering (WAXS and SAXS) was performed in order to unravel the nanoscale assembly of SEs. Differential scanning calorimetry (DSC) allowed to identify the melting and crystallization peaks of the different SEs, which could be attributed to the low and high esterified sugar molecules. Moreover, the results show clear differences in melting and crystallization behavior based on the type of fatty acid chains present. WAXS analysis unraveled a hexagonal subcell for all studied SEs. Despite some difficulty in identifying low intensity SAXS peaks, the analysis suggests a cubic structure for low HLB esters and a lamellar packing for high HLB esters. Medium HLB esters are hypothesized to contain a combination of the aforementioned structures.
Bioinspired nickel‐cysteine‐methoxy polyethylene glycol metallopolymer water solubility and electrochemical properties
Authors: Yang Xiyue , Dong Bowei , Zhang Jingmei , Wang Yongxiang 
Published: August 2024

AbstractThe exploitation of remarkable hydrogen evolution reaction (HER) catalysts that perform at rates comparable with that of platinum but utilize earth‐abundant metals in a green solvent (water) has garnered considerable interest. Inspired by enzymes, water‐soluble metallopolymers have recently emerged as highly promising HER catalysts, generally exhibiting high HER rates in aqueous solutions. However, challenges remain in the synthesis of metallopolymers and many artificial hydrogen evolution catalysts still rely on organic solvents. This study proposes incorporating water‐soluble methoxy polyethylene glycol at both ends of a nickel–cysteine metal complex through a classical esterification reaction. The resulting nickel metallopolymer demonstrates considerable water solubility (103.9 mg mL−1) under room temperature. Moreover, the stable metallopolymer exhibits an irreversible reduction peak between −0.6 and − 0.8 V, indicating HER activity in acidic and neutral environments. The excellent water solubility of this metallopolymer catalyst provides a basis for subsequent research and has practical applications in the field of HER catalysts.
Enhanced Cryogenic Thermoelectricity in Semimetal Ta2PdSe6 through Non‐Fermi Liquid‐Like Charge and Heat Transport
Authors: Kato Fumiaki , Maruoka Urara , Nakano Akitoshi , Manjo Taishun , Ishikawa Daisuke , Baron Alfred Q. R. , Yasui Yukio , Hasegawa Takumi , Terasaki Ichiro 
Published: August 2024

AbstractThe thermal properties of semimetal Ta2PdSe6 are studied, which exhibits a large thermoelectric power factor at low temperatures, by combining chemical substitution, transport measurements, and inelastic X‐ray scattering. A serious violation of the Wiedemann‐Franz law (WFL) is observed, which establishes the relationship between conductivity and thermal conductivity of metals. This violation leads to a thermal conductivity of Ta2PdSe6 lower than expected from the WFL and resistivity below 20 K, resulting in the highest figure of merit below 20 K among the p‐type thermoelectric materials thus far. Furthermore, electric and thermal resistivity show a non‐Fermi liquid‐like temperature dependence, indicating an exotic electronic state with an unconventional scattering process for heat and charge carriers. This study suggests that semimetals in the non‐Fermi liquid regime may be an intriguing platform, not only for fundamental physics but also for exploring novel thermoelectric materials tailored for low‐temperature applications.
Using social media and citizen science to assess cultural ecosystem services along riverine landscapes
Authors: da Silva Catarina , Pascoal Cláudia , Pace Giorgio , Vaz Ana Sofia , Carvalho‐Santos Cláudia 
Published: August 2024

AbstractRivers offer cultural ecosystem services (CES) that improve people's quality of life. Advancements in computing and data storage have primarily focused on terrestrial CES, neglecting riverine areas. This study aims to develop a methodology to assess CES in riverine landscapes from social media and citizen science images related to environmental information. We collected georeferenced pictures from Flickr and iNaturalist for three main test rivers in northwest Portugal (Minho, Lima and Cávado) and classified them based on content such as ‘biodiversity’, ‘recreation/river beaches’, ‘historical heritage’ and ‘landscape’, as well as environmental spatial variables. A multimodel inference approach was applied to predict the spatial distribution of the pictures and environmental variables to support CES mapping. The methodology was applied during two time periods, before and during the most restrictive period of the COVID‐19 pandemic. Results showed that estuaries were identified as ‘hotspots’ for CES related to rivers provision. There was distinct prevalence of pictures depending on the targeted river: pictures exhibiting ‘recreation/river beaches’ prevailed in Cávado (62%), ‘biodiversity’ in Lima (70%) and ‘historical heritage’ in Minho (39%). Only the values and patterns from the category ‘biodiversity’ were maintained on the two analysed periods, with the other categories not having posts in social media during COVID‐19 most restrictive period. The methodology for CES assessment in rivers can be replicated using different time periods and regions due to its simple stepwise framework. The study provides valuable insights for sociocultural approaches, aiding in decision‐making on freshwater environment management, despite potential limitations in image distribution.
Cardiac regeneration in goldfish (Carassius auratus) associated with increased expression of key extracellular matrix molecules
Authors: Webb Charles H. , Wang Yadong 
Published: August 2024

AbstractCardiac regeneration is a natural phenomenon that occurs in many species outside of humans. The goldfish (Carassius auratus) is an understudied model of cardiac wound response, despite its ubiquity as pets as well as its relationship to the better‐studied zebrafish. In this study, we examined the response of the goldfish heart to a resection injury. We found that by 70 days post‐injury, goldfish scarlessly heal cardiac wounds under a certain size, with local cardiomyocyte proliferation driving the restoration of the myocardial layer. We also found the upregulation of extracellular matrix components related to cardiac regeneration in the injury site. This upregulation correlated with the level of cardiomyocyte proliferation occurring in the injury site, indicating an association between the two that warrants further exploration.
Are disruptive papers more likely to impact technology and society?
Authors: Yang Alex J. , Yan Xiaohui , Hu Haotian , Hu Hanlin , Kong Jia , Deng Sanhong 
Published: August 2024

AbstractIn exploring the intersection of scholarly research with technological advancement and societal impact, our analysis delves into nearly 40 million research papers spanning from 1950 to 2020 across all fields of study in science. Our scrutiny reveals an intriguing phenomenon: papers characterized by a higher CD index, often considered transformative, paradoxically exhibit a diminished propensity to influence technological and societal domains. This observation suggests a latent bias against the CD index, prompting a deeper inquiry into its implications. To unravel this trend, we introduce the concept of “disruptive citation,” a nuanced metric gauging the absolute disruptive impact of papers. Notably, papers drawing higher disruptive citations exhibit a significantly higher probability to influence both technological and societal spheres. Upon examining the heterogeneity across years and fields, we identify a bias against the CD index predominantly in the last two decades and within STEM fields. However, the positive effects of disruptive impact remain consistent across all years and fields. Our findings remain robust even when employing alternative measures of disruptive impact and controlling for total citations. By shedding light on these dynamics, our study seeks to enrich discussions regarding the recognition and role of disruptive scientific endeavors in shaping our world.
Reduced spatial frequency differentiation and sex‐related specificities in fearful face detection in autism: Insights from EEG and the predictive brain model
Authors: Lacroix Adeline , Harquel Sylvain , Barbosa Leonardo S. , Kovarski Klara , Garrido Marta I. , Vercueil Laurent , Kauffmann Louise , Dutheil Frédéric , Gomot Marie , Mermillod Martial 
Published: August 2024

AbstractFace processing relies on predictive processes driven by low spatial frequencies (LSF) that convey coarse information prior to fine information conveyed by high spatial frequencies. However, autistic individuals might have atypical predictive processes, contributing to facial processing difficulties. This may be more normalized in autistic females, who often exhibit better socio‐communicational abilities than males. We hypothesized that autistic females would display a more typical coarse‐to‐fine processing for socio‐emotional stimuli compared to autistic males. To test this hypothesis, we asked adult participants (44 autistic, 51 non‐autistic) to detect fearful faces among neutral faces, filtered in two orders: from coarse‐to‐fine (CtF) and from fine‐to‐coarse (FtC). Results show lower d’ values and longer reaction times for fearful detection in autism compared to non‐autistic (NA) individuals, regardless of the filtering order. Both groups presented shorter P100 latency after CtF compared to FtC, and larger amplitude for N170 after FtC compared to CtF. However, autistic participants presented a reduced difference in source activity between CtF and FtC in the fusiform. There was also a more spatially spread activation pattern in autistic females compared to NA females. Finally, females had faster P100 and N170 latencies, as well as larger occipital activation for FtC sequences than males, irrespective of the group. Overall, the results do not suggest impaired predictive processes from LSF in autism despite behavioral differences in fear detection. However, they do indicate reduced brain modulation by spatial frequency in autism. In addition, the findings highlight sex differences that warrant consideration in understanding autistic females.
Plastic water supply connectors: Leaching, hydrocarbon contamination, and decontamination
Authors: Isaacson Kristofer P. , Le Halley , Verma Akshat , Youngblood Jeffrey P. , Shah Amisha D. , Whelton Andrew J. 
Published: August 2024

AbstractDisasters can prompt hydrocarbon contaminants to reach building water systems, and ultimately customer fixtures. Here, seven water supply connectors (e.g., ice‐maker lines, faucet connectors, washing machine hoses) were exposed to contaminated water, and were subsequently decontaminated by water flushing. After a 24 h contamination period, water samples were collected after three consecutive 72 h exposure periods. Samples were characterized for volatile organic compound, semi‐volatile organic compound, and total organic carbon concentrations. New, uncontaminated, PVC tubing leached phenol at concentrations that exceeded the health advisory. All materials sorbed more than 90% of hydrocarbon contaminants during the initial exposure period. All materials then released the contaminants into the water during decontamination, at times above health‐based limits. The majority of sorbed mass remained in the plastics at the end of the decontamination effort, indicating the products posed continued leaching risks. Public health guidance considerations and research needs were identified.
Consumer agency in sustainable consumption behaviour and environmentally imposed constraints: A multi‐level approach
Authors: Gordon‐Wilson Sianne , Godefroit‐Winkel Delphine 
Published: August 2024

AbstractThis research draws on social cognitive theory (SCT) with a view to understanding how consumers develop (un)sustainable consumption behaviours under environmentally imposed constraints, such as lockdown. Whilst most research on sustainable behaviours has focussed on selected and constructed environmental constraints, this research uncovers consumer behaviours in imposed environments. The study uses a two‐stage qualitative methodology. Stage 1 consists of 10 in‐depth interviews, which helped to achieve richer data collection among 42 people completing structured interviews in Stage 2. By using a bottom‐up approach, this study shows (1) how consumers develop agency in sustainable consumption, (2) how changes at a micro level induce consequences at the meso and macro level, and (3) how three distinct logics (finance, health and sustainability) shape consumer behaviours under environmentally imposed constraints. Recommendations are provided to retailers and government to foster sustainable consumption and agency during times of environmentally imposed constraints.
CRH upregulates supervillin through ERK and AKT pathways to promote bladder cancer cell migration
Authors: Mao Rongchen , Zhou Feier , Hong Yali , Li Yongqi , Zhu Chao , Jin Lai , Li Shengnan 
Published: August 2024

AbstractCorticotropin‐releasing hormone (CRH) has been well documented playing a role in the regulation of cellular processes, immune responses, and inflammatory processes that can influence the occurrence and development of tumors. Supervillin (SVIL) is a membrane‐associated and actin‐binding protein, which is actively involved in the proliferation, spread, and migration of cancer cells. This work investigated CRH's influence on bladder cancer cells' migration and relevant mechanisms. By using human bladder cancer cells T24 and RT4 in wound healing experiments and transwell assay, we found that the migration ability of the T24 cells was significantly increased after CRH treatment. In vivo experiments showed that CRH significantly promoted the metastases of T24 cells in cell line‐derived xenograft (CDX) mouse model. Interestingly, downregulation of SVIL by SVIL‐specifc small hairpin RNAs significantly reduced the promoting effect of CRH on bladder cancer cell migration. Furthermore, CRH significantly increased SVIL messenger RNA and protein expression in T24 cells, accompanied with AKT and ERK phosphorylation in T24 cells. Pretreatment with AKT inhibitor (MK2206) blocked the CRH‐induced SVIL expression and ERK phosphorylation. Also, inhibition of ERK signaling pathway by U0126 significantly reduced the CRH‐induced SVIL expression and AKT phosphorylation. It suggested that cross‐talking between AKT and ERK pathways was involved in the effect of CRH on SVIL. Taken together, we demonstrated that CRH induced migration of bladder cancer cells, in which AKT and ERK pathways ‐SVIL played a key role.
The MCR‐ALS Trilinearity Constraint for Data With Missing Values
Authors: Gómez‐Sánchez Adrián , Vitale Raffaele , Loza‐Alvarez Pablo , Ruckebusch Cyril , de Juan Anna 
Published: August 2024

ABSTRACTTrilinearity is a property of some chemical data that leads to unique decompositions when curve resolution or multiway decomposition methods are used. Curve resolution algorithms, such as Multivariate Curve Resolution–Alternating Least Squares (MCR‐ALS), can provide trilinear models by implementing the trilinearity condition as a constraint. However, some trilinear analytical measurements, such as excitation–emission matrix (EEM) measurements, usually exhibit systematic patterns of missing data due to the nature of the technique, which imply a challenge to the classical implementation of the trilinearity constraint. In this instance, extrapolation or imputation methodologies may not provide optimal results. Recently, a novel algorithmic strategy to constrain trilinearity in MCR‐ALS in the presence of missing data was developed. This strategy relies on the sequential imposition of a classical trilinearity restriction on different submatrices of the original investigated dataset, but, although effective, was found to be particularly slow and requires a proper submatrix selection criterion. In this paper, a much simpler implementation of the trilinearity constraint in MCR‐ALS capable of handling systematic patterns of missing data and based on the principles of the Nonlinear Iterative Partial Least Squares (NIPALS) algorithm is proposed. This novel approach preserves the trilinearity of the retrieved component profiles without requiring data imputation or subset selection steps and, as with all other constraints designed for MCR‐ALS, offers the flexibility to be applied component‐wise or data block‐wise, providing hybrid bilinear/trilinear models. Furthermore, it can be easily extended to cope with any trilinear or higher‐order dataset with whatever pattern of missing values.
Organoboron Polymorphs with Different Molecular Packing Modes for Optical Waveguides
Authors: Zhao Tingting , A Suru , Ma Yurong , Wang Nan , Liu Fangbin , Su Zhongmin 
Published: August 2024

AbstractOrganoboron compounds offer a new strategy to design optoelectronic materials with high fluorescence efficiency. In this paper, the organoboron compound B‐BNBP with double B←N bridged bipyridine bearing four fluorine atoms as core unit is facilely synthesized and exhibits a narrowband emission spectrum and a high photoluminescence quantum yield (PLQY) of 86.53 % in solution. Its polymorphic crystals were controllable prepared by different solution self‐assembly methods. Two microcrystals possess different molecular packing modes, one‐dimensional microstrips (1D‐MSs) for H‐aggregation and two‐dimensional microdisks (2D‐MDs) for J‐aggregation, owing to abundant intermolecular interactions of four fluorine atoms sticking out conjugated plane. Their structure‐property relationships were investigated by crystallographic analysis and theoretical calculation. Strong emission spectra with the full width at half maximum (FWHM) of less than 30 nm can also be observed in thin film and 2D‐MDs. 1D‐MSs possess thermally activated delayed fluorescence (TADF) property and exhibit superior optical waveguide performance with an optical loss of 0.061 dB/μm. This work enriches the diversity of polymorphic microcrystals and further reveals the structure‐property relationship in organoboron micro/nano‐crystals.
Adhesion Forces at High Temperatures – An Atomic Force Microscopy Study Using Two Particle Systems
Authors: Ditscherlein Lisa , Peuker Urs Alexander 
Published: August 2024

AbstractAdhesive forces of micrometer‐sized alumina (Al2O3) and polystyrene (PS) particles are investigated under elevated temperatures using a high‐temperature atomic force microscope, where the smooth contact partner is heated. In the case of Al2O3 particles, only van der Waals interactions occur. The adhesive forces between PS particles and heated contact surface increase strongly starting from the glass transition temperature. An initial flattening of the particles up to melting at the contact point was detected. The adhesion forces can be described by means of a semi‐empirical equation.
Effect of annulus ratio on the residence time distribution and Péclet number in micro/milli‐scale reactors
Authors: Yang Ning , Xiao Zundong , Liu Hanyang , Jiang Junan , Liu Fei , Yang Xiaoxia , Wang Rijie 
Published: August 2024

AbstractMicro/milli‐scale annular reactor with straight and helical forms has excellent heat and mass transfer performance due to the short molecular diffusion distance and dual‐wall surface transport. The annular gap spacing is scalable by adjusting the inner and outer tube diameter. The influence of diffusion and convection effects on axial dispersion as expanding the flow scale requires further elucidation with the help of residence time distribution (RTD) curves and Péclet (Pe) numbers. The correlation of RTD characteristics with annulus ratio γ = Dh/D (ratio of annulus characteristic size to outer diameter) is investigated using computational fluid dynamics. Results show that with enlarging the straight annular gap from micro‐scale to milli‐scale, RTD characteristics exhibit opposing patterns. This can be attributed to the transition from diffusion‐dominated to convection‐dominated on momentum transfer, and the transition interval is 0.167 < γ < 0.250. Correlation equations of Pe number with Reynolds (Re) number and γ are established under diffusion‐dominated and convection‐dominated states. The symmetrically distributed secondary flow in the helical annular gap effectively elevates the Pe (Pemax > 100). Correlation equations of Pe with Re and γ are established in helical annular gaps with 0.083 < γ < 0.208 and 0.167 < γ < 0.500. The above results contribute to understanding the annular flow RTD characteristics for better applications of tube‐in‐tube reactors.
Incubation of Amyloidogenic Peptides in Reverse Micelles Allow Active Control of Oligomer Size and Study of Protein–Protein Interactions
Authors: Chang Han‐Wen , Yang Chien‐I , Chan Jerry Chun Chung 
Published: August 2024

AbstractStudies of the structure and dynamics of oligomeric aggregates of amyloidogenic peptides pose challenges due to their transient nature. This concept article provides a brief overview of various nucleation mechanisms with reference to the classical nucleation theory and illustrates the advantages of incubating amyloidogenic peptides in reverse micelles (RMs). The use of RMs not only facilitates size regulation of oligomeric aggregates but also provides an avenue to explore protein‐protein interactions among the oligomeric aggregates of various amyloidogenic peptides. Additionally, we envision the feasibility of preparing brain tissue‐derived oligomeric aggregates using RMs, potentially advancing the development of monoclonal antibodies with enhanced potency against these pathological species in vivo.