bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fully sp2 Carbon‐Conjugated Covalent Organic Frameworks with Multiple Active Sites for Advanced Lithium‐Ion Battery Cathodes
Authors: Fu Ning , Liu Ying , Kang Kun , Tang Xue , Zhang Shiqi , Yang Zhenglong , Wang Yan , Jin Pujun , Niu Yongsheng , Yang Ben 
Published: July 2024

AbstractCovalent organic frameworks (COFs) hold great promise for rechargeable batteries. However, the synthesis of COFs with abundant active sites, excellent stability, and increased conductivity remains a challenge. Here, chemically stable fully sp2 carbon‐conjugated COFs (sp2c‐COFs) with multiple active sites are designed by the polymerization of benzo[1,2‐b:3,4‐b′:5,6‐b′′]trithiophene‐2,5,8‐tricarbaldehyde) (BTT) and s‐indacene‐1,3,5,7(2H,6H)‐tetrone (ICTO) (denoted as BTT‐ICTO). The morphology and structure of the COF are precisely regulated from “butterfly‐shaped” to “cable‐like” through an in situ controllable growth strategy, significantly promoting the exposure and utilization of active sites. When the unique “cable‐like” BTT‐ICTO@CNT is employed as lithium‐ion batteries (LIBs) cathode, it exhibits exceptional capacity (396 mAh g−1 at 0.1 A g−1 with 97.9 % active sites utilization rate), superb rate capacity (227 mAh g−1 at 5.0 A g−1), and excellent cycling performance (184 mAh g−1 over 8000 cycles at 2.0 A g−1 with 0.00365 % decay rate per cycle). The lithium storage mechanism of BTT‐ICTO is exhaustively revealed by in situ Fourier transform infrared, in situ Raman, and density functional theory calculations. This work provides in‐depth insights into fully sp2c‐COFs with multiple active sites for high‐performance LIBs.
Ordered layered manganese‐based metal–organic frameworks induce 2D growth of discharge products via LiO2 adsorbent for high performance lithium–oxygen batteries
Authors: Yu Shuming , Zhao Hao , Wang Yuxin , Lang Xiaoshi , Wang Tan , Qu Tingting , Li Lan , Yao Chuangang , Cai Kedi 
Published: July 2024

Adjusting the morphology and structure of the catalyst to optimize the structure of the discharge product is an effective strategy for improving the electrocatalytic activity of lithium–oxygen batteries (LOBs). In this paper, a novel high‐orientation layered manganese‐based metal–organic frameworks (Mn‐MOFs) catalyst for the air cathode of a LOB is synthesized via a facile solvothermal method using 2,4‐pyridine dicarboxylic acid combined with the metal Mn2+ ion. The presence of layered structure increases the specific surface area of the catalytic material, and the interlayer spacing can be used as a channel for electron and oxygen transport, thus promoting ion diffusion and catalyzing reactions. Otherwise, the coordination of the N element and metal ion in the organic ligand significantly improves the electrical conductivity and oxygen reduction reaction/oxygen extraction reaction (ORR/OER) performance of LOB. The effective combination of Mn2+ and 2,4‐pyridine dicarboxylic acid improves the overall catalytic capacity of the material, leading to a high LiO2 adsorption capacity so as to induce the formation of film discharge products and extend the cycle life of LOBs. When using Mn‐MOFs at 140°C as the cathode catalyst, the specific discharge capacity of the LOB can achieve 5579 mAh/g with a 0.2 mA/cm2 current density and maintain 140 stable cycles, limiting the specific discharge capacity to 500 mAh/g.
Sunflower oil‐soybean wax oleogel: An oxidation stable alternative to traditional frying methods for doughnut
Authors: Zubairee Kurshid , Yalcin Hasan , Dursun Capar Tugba 
Published: July 2024

AbstractDeep‐frying changes the quality of the oil through hydrolysis, oxidation, and polymerization, which makes both positive and harmful changes in the oil and fried food items. In this study sunflower oil was combined with soybean wax to create oleogels that were assessed for their ability to reduce fat uptake and maintain oxidative stability during the deep‐fat frying of doughnut samples. The oleogel was tested as a potential alternative to traditional deep‐fat frying with sunflower oil for frying doughnuts. The different frying times of oleogel were examined to assess the physical properties of the oleogel. Afterward, a comparative analysis was conducted between doughnuts fried in sunflower oil and oleogel. The results showed that doughnuts fried in oleogel absorbed approximately 37.8% less oil than those fried in sunflower oil. Additionally, the doughnuts fried in oleogel had a better appearance, with a higher lightness value (L*) (87.73 ± 0.8) than those fried in oil (77.72 ± 1.35). Moreover, the redness value, (a*) of oleogel doughnuts was also lower (0.33 ± 0.25) than those fried in oil (0.37 ± 0.9). The blueness or yellowness (b*) of the doughnuts was not significantly different which was found as 1.52 and 1.54, for oleogel and oil samples, respectively. Although the viscosity values of oleogel were higher during extended frying, the lower peroxide, free fatty acid, p‐Anisidine, conjugated diene, and triene values suggest that oleogel is more stable. These results will provide a significant advantage in the usage of sunflower oil‐soybean wax oleogel as a frying medium with improved stability.
Development of rare earth element and carbon fiber‐based filler for polyethylene—Mechanical and thermal performance
Authors: Kısmet Yılmaz , Ayikurt Pamuk 
Published: July 2024

AbstractIn the present study, three fillers produced with carbon fiber powder (CFP) and rare earth elements were developed for low‐density polyethylene production. These fillers included CFP with a grain size of less than 400 microns and over 90% pure lanthanum and cerium oxides. Polyethylene was employed to ensure the thermoplasticity and homogeneity of the fillers. The fillers were mixed with the matrix material separately, first mechanically and then homogenously in the extruder, then the test bars were produced with an injection machine. In the mechanical tests, it was determined that the tensile strength of the test bars improved by ~20% and the elastic region increased due to the increasing amount of filler. Similarly, an improvement of about 40% in bending stress was realized. In addition, as the fluidity of the mixtures has improved, it has been possible to produce at lower temperatures and save energy in the production. Thermogravimetric analysis was conducted to determine the melting/crystallization temperatures and material losses in the compounds. The scanning electron microscope analysis showed that the fillers were irregularly distributed on the surface in parallel and perpendicular directions. In addition, x‐ray diffraction and energy dispersive spectroscopy analyses were performed on the surfaces.
Allometry and phylogenetic divergence: Correspondence or incongruence?
Authors: Cardini Andrea 
Published: July 2024

AbstractThe potential connection between trends of within species variation, such as those of allometric change in morphology, and phylogenetic divergence has been a central topic in evolutionary biology for more than a century, including in the context of human evolution. In this study, I focus on size‐related shape change in craniofacial proportions using a sample of more than 3200 adult Old World monkeys belonging to 78 species, of which 2942 specimens of 51 species are selected for the analysis. Using geometric morphometrics, I assess whether the divergence in the direction of static allometries increases in relation to phyletic differences. Because both small samples and taxonomic sampling may bias the results, I explore the sensitivity of the main analyses to the inclusion of more or less taxa depending on the choice of a threshold for the minimum sample size of a species. To better understand the impact of sampling error, I also use randomized subsampling experiments in the largest species samples. The study shows that static allometries vary broadly in directions without any evident phylogenetic signal. This variation is much larger than previously found in ontogenetic trajectories of Old World monkeys, but the conclusion of no congruence with phylogenetic divergence is the same. Yet, the effect of sampling error clearly contributes to inaccuracies and tends to magnify the differences in allometric change. Thus, morphometric research at the boundary between micro‐ and macro‐evolution in primates, and more generally in mammals, critically needs very large and representative samples. Besides sampling error, I suggest other non‐mutually exclusive explanations for the lack of correspondence between allometric and phylogenetic divergence in Old World monkeys, and also discuss why directions might be more variable in static compared to ontogenetic trajectories. Even if allometric variation may be a poor source of information in relation to phylogeny, the evolution of allometry is a fascinating subject and the study of size‐related shape changes remains a fundamental piece of the puzzle to understand morphological variation within and between species in primates and other animals.
Investigate the relationship between Bacillus coagulans and its inhibition of chemotherapy‐induced lung cancer resistance
Authors: Ting Yu‐Shan , Wang Yi‐Shiuan , Liao En‐Chi , Chou Hsiu‐Chuan , Chan Hong‐Lin 
Published: July 2024

AbstractLung cancer is a leading cause of death globally, with lung adenocarcinoma being the most common subtype. Despite advancements in targeted therapy, drug resistance remains a major challenge. This study investigated the impact of Bacillus coagulans on drug resistance in lung adenocarcinoma cells. The cells were pretreated with B. coagulans culture filtrate (BCCF), and functional assays were performed, including cell proliferation, cell cycle, apoptosis, and immunofluorescence staining. Results showed that BCCF induced cell cycle arrest at the S phase, reducing cell proliferation and suppressing drug resistance marker P‐glycoprotein expression in BCCF‐treated resistant cells rather than BCCF‐treated control cells. Moreover, drug‐resistant cells exhibited the ability for epithelial‐mesenchymal transition, which could contribute to their necrosis through the iron‐mediated cell death pathway upon BCCF treatment. Proteomic analysis identified downregulation of DNA mismatch repair protein PMS2 after BCCF treatment. These findings suggest that B. coagulans may modulate the DNA repair pathway, influencing drug resistance in lung adenocarcinoma cells. In conclusion, this study highlights the potential impact of B. coagulans on drug‐resistant lung adenocarcinoma cells. Further investigation and understanding of the regulatory mechanisms by which B. coagulans modulates drug resistance in lung adenocarcinoma can aid in the development of more effective treatment strategies to improve the prognosis of lung cancer patients.
Does environmental commitment improve access to finance? Evidence from small firms in Mauritius
Authors: Pillay Mahdevi Tiagarassa , Kasseeah Harshana 
Published: July 2024

AbstractGiven the importance of climate change and the various ways to address it, this paper studies whether small firms that are environmentally committed are better able to access finance. It is important from a policy perspective to investigate if firms that care about climate change and sustainability are indeed being given all the incentives or if this is just a political discourse. The analysis is based on firm‐level data covering several years, which allows a temporal investigation as to whether environmental commitment is becoming an influential factor that affects access to finance. The results obtained highlight that although commitment to environmental issues is becoming more widespread in firms, they are still not important factors that affect access to external financing. The evidence regarding environmental commitment is mixed, since the paper also finds that several traditional factors continue to influence access to finance. Therefore, the providers of funds, especially banks should avoid paying lip‐service to their concern of the environment and abide by their discourse of facilitating access to finance, especially to firms having environmental commitments.
Concurrent epirubicin and trastuzumab use increases complete pathological response rate without additional cardiotoxicity in patients with human epidermal growth factor receptor 2‐positive early breast cancer: A meta‐regression analysis
Authors: Yang Ming‐Han , Huang Chiun‐Sheng , Chang Dwan‐Ying , Hu Fu‐Chang , Huang Shu‐Min , Huang Po‐Hsiang , Chen I‐Chun , Chen Tom Wei‐Wu , Lin Ching‐Hung , Lu Yen‐Shen 
Published: July 2024

AbstractBackgroundDue to cardiotoxicity concerns, the concurrent use of epirubicin and trastuzumab has not been fully studied. This study aimed to examine the cardiotoxicity and pathological complete response (pCR) rate associated with the concurrent regimens in patients with human epidermal growth factor receptor 2 (HER2)‐positive early breast cancer (EBC).MethodsWe conducted a systematic search for relevant literature in the NCBI/PubMed, the Cochrane database, and international conference abstracts for phase II or III randomized controlled trials between January 1, 2000, and February 28, 2021, focusing on the concurrent regimens in patients with HER2‐positive EBC. To compare the risk of cardiotoxicity and the odds of the pCR rate, we performed linear meta‐regression analyses to investigate the effects of multiple covariates.ResultsWe analyzed 7 neoadjuvant trials involving the concurrent use of epirubicin and trastuzumab with 1797 patients. The median cumulative dose of epirubicin used was 300 mg/m2, with a total of 96 reported adverse cardiac events. The concurrent regimens did not result in a significant increase in cardiotoxicity compared to nonconcurrent regimens (risk ratio [RR] = 1.18, 95% confidence interval [CI] = 0.68–2.05). Compared with nonconcurrent or non‐anthracycline‐containing regimens, concurrent regimens were associated with a significant increase in the pCR rate (odds ratio = 1.48, 95% CI = 1.04–2.12). The linear fixed‐effects meta‐regression analysis indicated that in trials including more patients with hormone receptor‐positive EBC, the RR of cardiotoxicity significantly increased with concurrent regimens, and the pCR rate became less significant.ConclusionsThe combination of trastuzumab and a low dose of epirubicin positively impacted the pCR rate without a significant increase in cardiotoxicity. We recommend exploring concurrent regimens for HR‐negative, HER2‐positive tumors to enhance pCR rates, with caution advised for HR‐positive tumors due to potential cardiotoxicity.
Self‐improvement or hedonic enjoyment? Effect of romantic experiences on consumer product preferences
Authors: Zhang Junyan , Yang Yan , Jin Shan , Jing Fengjie 
Published: July 2024

AbstractRomantic experiences are positive emotional experiences that significantly affect people's lives and consumption behaviors. Extant research merely conceptualizes romantic experiences as intimate relationships between lovers and investigates their impact on the consumption of specific products (e.g., sweets, movies, and tourist destinations). In this study, we extend the concept of romantic experience beyond romantic love and demonstrate how romantic experience influences consumers' preferences for self‐improvement products based on the broaden‐and‐build theory through four experiments. Specifically, we show that romantic experiences (vs. neutral experiences) increase consumers' preference for self‐improvement products, even in areas unrelated to the initial romantic stimuli (Study 1). This greater inclination toward self‐improvement products is mediated by a heightened sense of meaning in life (Studies 2 and 3). Moreover, the focal effect is moderated by self‐construal (Study 4). These findings complement those of previous studies on how romantic experiences influence consumption choices.
Practical Pouch Cell Supercapacitor Electrodes by Electrophoretic Deposition of Activated Carbon on Nickel Foam
Authors: Chakrabarti Barun Kumar , Dönmez Koray Bahadır , Çobandede Zehra , Low Chee Tong John 
Published: July 2024

AbstractThis study highlights for the first‐time the utilization of nickel foam coated with activated carbon (AC) via the electrophoretic deposition (EPD) method in the fabrication of A7 sized pouch cell supercapacitors. The scale‐up of electrodes via EPD from coin to pouch cells with mass loadings (10 mg cm−2) and thicknesses (>130 μm) that match industrial standards is also reported. Research investigations include: (a) comparison of a two dimensional (2D) aluminum foil current collector's performance with three dimensional (3D) microporous nickel foam current collectors, (b) impact of EPD of AC onto small (10 cm2) and large areas (50 cm2) of nickel foam, and (c) scaling‐up of coin to pouch cells along with a comparison against electrodes prepared via the standard doctor blade coating (or slurry casting) method. We demonstrate practical cell performance, including specific current loading (40 A g−1), hundred thousand of successive charge and discharge operation (150,000 cycles), power (27 kW kg−1) and energy densities (37.7 W h kg−1), capacitance (174 F g−1), capacitance retention (80 %) and coulombic efficiency (close to 100 %).
Halogen Impact on the Supramolecular Organization of Chiral Phthalimide Emitters Displaying Room Temperature Phosphorescence
Authors: Demangeat Catherine , Remond Maxime , Roisnel Thierry , Quinton Cassandre , Favereau Ludovic 
Published: July 2024

AbstractRoom temperature phosphorescence from organic materials has attracted an increasing attention in the recent years due to their potential application in various advancing technologies, notably in bioimaging and displays. In this context, heavy atoms such as halogen ones revealed useful tools to enhance the spin‐orbit coupling (SOC) of molecular organic phosphors. However, the effect of halogen at the supramolecular level remains less understood, especially in the field of molecular crystals where additional factors can impact the phosphorescence emission. Here, we investigate external effect of halogens on the phosphorescence of chiral phthalimides molecular crystals. The results show that changing the nature of the halogen atom onto the phthalimide core leads to an evolution of the photophysical properties of the materials which does not necessarily follow the classical trend imposed by the expected internal heavy atom effect. Beyond this aspect, we showed that the halogen atom has a profound impact on the packing between the chromophores at the supramolecular level which is of paramount importance towards the optical properties (PLQY and lifetimes) of the different phosphors examined.
Robust and Irreversible Sortase‐Mediated Ligation by Empolyment of Sarkosyl
Authors: Xiao Yihang , Wu Mingxuan 
Published: July 2024

AbstractSortase‐mediated ligation (SML) is a widely used method for peptide and protein ligation due to ease of substrate preparation and fast enzymatic kinetics. But there are drawbacks that limit broader applications. Sorting motif in substrates may not be exposed to sortase efficiently due to folding or aggregation. In addition, the ligation is reversible under transpeptidation equilibrium that restricts ligation yield. Here we report a simple but robust method to overcome such limitations. By employment of sarkosyl, the detergent alters substrate conformation to raise sorting motif accessibility for sortase catalysis. Moreover, transpeptidation becomes irreversible presumably by formation of micelle to shield ligation products from sortase. In consequence, excellent yields were achieved from sortase variants with different substrate specificity. Notably, this method is compatible with peptides or proteins capable of forming liquid‐liquid phase separation (LLPS), presenting a powerful approach for the conjugation of aggregation‐prone substrates. Therefore, we believe the sarkosyl‐enhanced SML could be widely applied in peptide and protein chemistry and the unique irreversible transpeptidation mechanism offers an insight to detergent‐driven equilibrium.
Bridging Titanium Nitrido Complexes Containing A Linear Ti−N−Ti Core with A Two‐Coordinate Nitrido Ligand
Authors: Okumura Akira , Ghana Priyabrata , Spaniol Thomas P. , Okuda Jun 
Published: July 2024

AbstractA series of titanium μ2‐nitrido complexes supported by the triamidoamine ligand Xy‐N3N (Xy‐N3N={(3,5‐Me2C6H3)NCH2CH2}3N3−) is reported. The titanium azido complex [(Xy‐N3N)TiN3] (1‐N3), prepared by salt metathesis of the chloride complex [(Xy‐N3N)TiCl] (1‐Cl) with NaN3, reacted with lithium metal or with alkali metal naphthalenides (alkali metal M=Na, K, and Rb) in THF to give the corresponding dinuclear μ2‐nitrido complexes M[(Xy‐N3N)Ti=N‐Ti(Xy‐N3N)] (2‐M; M=Li, Na, K, Rb). Single crystal X‐ray diffraction studies of 2‐Li, 2‐Na, and 2‐K revealed alkali metal dependent structures in the solid state. While 2‐Li and 2‐K contain a μ2‐nitrido ligand with a linear Ti−N−Ti core, 2‐Na includes a μ3‐nitrido ligand as part of a T‐shape Ti2NaN fragment with the sodium cation weekly coordinated to the nitrido nitrogen atom. When the synthesis of the nitrido complexes was carried out in the presence of excess alkali metals, decomposition of the nitrido complexes was observed affording some intractable titanium species along with the trialkali metal salts [M3(Xy‐N3N)] (3‐M) (M=Li, Na, K, and Rb). These salts were also prepared by deprotonation of (Xy‐N3N)H3 with the corresponding alkali metal hexamethyldisilazide and characterized by multinuclear NMR spectroscopy as well as single crystal X‐ray diffraction.
Structure‐Function Relationship of Iron Oxide Nanoflowers: Optimal Sizes for Magnetic Hyperthermia Depending on Alternating Magnetic Field Conditions
Authors: Bejko Megi , Yaman Yasmina Al , Keyes Anthony , Bagur Auriane , Rosa Patrick , Gayot Marion , Weill Francois , Mornet Stéphane , Sandre Olivier 
Published: July 2024

AbstractIron oxide nanoflowers (IONFs) that display singular magnetic properties can be synthesized through a polyol route first introduced almost 2 decades ago by Caruntu et al., presenting a multi‐core morphology in which several grains (around 10 nm) are attached together and sintered. These outstanding properties are of great interest for magnetic field hyperthermia, which is considered as a promising therapy against cancer. Although of significantly smaller diameter, the specific adsorption rate (SAR) of IONFs reach values on the order of 1 kW g−1, as large as “magnetosomes” that are natural magnetic nanoparticles typically ~40 nm found in certain bacteria, which can be grown artificially but with much lower yield compared to chemical synthesis such as the polyol route. This work aims at better understanding the structure‐property relationships, linking the internal IONF nanostructure as observed by high resolution transmission electron microscopy (HR‐TEM) to their magnetic properties. A library of mono‐ and multicore IONFs is presented, with diameters ranging from 11 to 30 nm in a narrow size distribution. More particularly, by relating their structural features (diameter, morphology, defects…) to their magnetic properties investigated by utilizing AC magnetometry over a wide range of alternating magnetic field (AMF) conditions, we showed that the SAR values of all synthesized batches vary with overall diameter and number of constituting cores. These variations are in qualitative agreement with theoretical predictions either by the Linear Response Theory (LRT) at low fields or with the Stoner‐Wohlfarth (SW) model at larger amplitudes, and with numerical simulations reported previously. More precisely, our results show a continuous (almost quadratic) increase of SAR with IONF diameter for AMF amplitudes of 20 kA m−1 and above, whatever the frequency between 146 and 344 kHz, and a pronounced maximum at an IONF diameter of 22 nm for amplitudes of 16 kA m−1 and below. Thank to this understanding of the impact of size and core multiplicity, stable colloidal solutions of IONPs can be synthesized with diameters targeting a SAR value adapted to the theragnostic approach envisioned.