bluuebunny/crossref_metadata_2025_split huggingface dataset:
The thermal conductivity of 3D network reinforced polypropylene matrix composites was constructed by the pickering‐like emulsion method
Authors: Zheng Zhoukai , Bai Yang , Wang Chenyu , Hu Shengfei , Zhang Rong , Liu Qingting , Fu Xudong 
Published: August 2024

AbstractPolypropylene (PP) has the advantages of corrosion resistance, easy processing, and low dielectric loss, but its low thermal conductivity limits the application of its composites in fields such as electronic packaging. To solve this problem, in this work, composite microspheres with the segregated structure were prepared by coating boron nitride nanosheets (BNNSs) on the PP surface by Pickering‐like emulsion method, and BNNSs@PP composites with three‐dimensional thermal conductivity network were obtained after molding. Due to the high thermal conductivity of BNNSs and the formation of perfect thermal conduction pathways, the thermal conductivity of the composites reached 1.71 W m−1 K−1 when the content of BNNSs was 10.1 wt%, which was a 713% increase in thermal conductivity for that of pure PP. At the same time, the mechanical properties of the composites were ensured. This method provides a simple and effective technique to improve the thermal conductivity of PP‐based thermally conductive composites, which has a wide application potential in electronic packaging.
Effect of thermal pre‐compressing on ionic conductivity and mechanical properties of PEO‐based solid‐state electrolytes
Authors: Sun Hao , Yang Qinghua , Kong Detao , Li Yanrui , He Yaolong , Zhang NengHui , Hu Hongjiu 
Published: August 2024

AbstractPolyethylene oxide (PEO)‐based solid polymer electrolytes are regarded as promising electrolyte materials because of their safety and flexibility. However, low ionic conductivity at ambient temperature and poor mechanical properties have been a hindrance to its development. In this work, we thermally compressed the PEO‐based electrolytes and explored the ionic conductivity, mechanical performance, free volume, and thermal properties of the electrolyte under different thermal pre‐compressing strains (TPC‐strains). The results show that TPC‐strain can significantly improve the ionic conductivity, in‐plane strength, stiffness, and cell specific capacity as well as the mechanical integrity of solid polymer electrolytes within the battery environment. However, it also results in a reduction in the modulus and stiffness of the SPEs in the through‐plane. In particular, applying a TPC‐strain of 10%–20% to the SPEs by thermal compressing may be a suitable option, which can increase the ionic conductivity of the through‐plane to a factor of 3.4 compared with the uncompressed electrolyte, and increase the in‐plane strength by up to 141%, resulting in better mechanical integrity during charging/discharging processes. At the same time, the compression modulus can be maintained at 80% or higher.
Preparation and performance evaluation of heat resistant and salt resistant anionic fluid loss reducer for water‐based drilling fluid
Authors: Wang Meirong , Lin Ling , Luo Pingya , Pu Di , Zhang Xinmin , Li Zheng , Ao Hongdan 
Published: August 2024

AbstractIn this investigation, a new micro‐crosslinked anionic polymer resistant to elevated temperature and high salinity, PKDASN, was synthesized using 3‐chloropropyltriethoxysilane (KMB703), N, N‐Dimethylacrylamide (DMAM), 2‐acrylamido‐2‐methylpropanesulfonic acid (AMPS), N‐vinyl caprolactam (NVCL), and sodium (4‐vinyl phenyl)methanesulfonate (SVM) employing free radical polymerization in a water‐based solution. The structure of PKDASN was analyzed using Fourier‐transform infrared spectroscopy, nuclear magnetic resonance spectroscopy, and X‐ray photoelectron spectroscopy, while its microstructure was analyzed using scanning electron microscopy. Thermogravimetric analysis showed that the pyrolysis temperature of PKDASN was above 294°C. Adding KMB703 enables the polymer to form a dense and stable spatial network. This intensified polymer network could interact with bentonite via intermolecular force and Coulomb force and form a dual grid structure, which presents impressive stability and control of filtration in saltwater. This is mainly achieved through creating a “silane coupling layer” on the particle surface by KMB703, which facilitates the crosslinking and aggregation of the polymer, thereby reinforcing the polymer's framework. This implies that under high‐temperature conditions of 230°C, 3 wt% PKDASN can improve the filtration effectiveness of drilling fluids and exhibit resistance to 15 wt% NaCl contamination. American Petroleum Institute filtration(FLAPI) and High temperature and high pressure filtration(FLHTHP) values were 4.6 and 23.0 mL, respectively. Therefore, this investigation provides a novel approach to utilizing the designated silane agent for the advancement of filtration loss additives in drilling fluids resistant to elevated temperature and high salinity.
Homogeneous Catalysis in N‐Formylation/N‐Methylation Utilizing Carbon Dioxide as the C1 Source
Authors: Dutta Indranil , Gholap Sandeep Suryabhan , Rahman Mohammad Misbahur , Tan Davin , Zhang Lili , Dighe Shashikant U. , Huang Kuo‐Wei 
Published: August 2024

AbstractThe growing emphasis on sustainable chemistry has driven research into utilizing carbon dioxide (CO2) as a nontoxic, abundant, and cost‐effective C1 building block. CO2 offers a promising avenue for direct conversion into valuable chemicals ranging from fuels to pharmaceuticals. This review focuses on the utilization of CO2 for reductive N‐formylation/N‐methylation reactions of various amines, providing advantages over conventional methods involving toxic CO and other methylating reagents. The approach employs readily available reductants such as silane, borane reagents, and hydrogen (H2). The discussion encompasses recent developments in transition metal and organocatalyst systems for these reactions, highlighting mechanistic interpretations and factors influencing product selectivity.
Direct Determination of POSS Cage Structure in a Self‐Assembled Ionic Bridged Silsesquioxane by Using the Total Pair Distribution Function G(r) and Density Functional Theory
Authors: Schneid Andressa C. , de Lima João C. , Ferreira Fabio F. , Gonçalves Paulo F. B. , Arenas Leliz T. , de Menezes Eliana W. , Costa Tania M. H. , Buchner Silvio , Benvenutti Edilson V. 
Published: August 2024

AbstractIn the present study, both short‐range and long‐range structural features of an ionic bridged silsesquioxane, specifically one containing the 1,4‐diazoniabicyclo[2.2.2]octane chloride group (ISSQ), were elucidated. This ionic silsesquioxane was synthesized via direct polycondensation of a bridged organosilane precursor, without any additional functionalization step. Si−O−Si cage structures typical of Polyhedral Oligomeric Silsesquioxanes (POSS) were identified. The average interatomic distances of the POSS cages, including the open T8 cage and the T12 cage for the ISSQ, as well as the T8 cage for a commercially available pendant POSS were determined. It is the first report of the interatomic distance determination of POSS cage; achieved by using total pair distribution function G(r) values obtained through high‐resolution synchrotron X‐ray diffraction combined with density functional theory (DFT) calculations. The application of DFT was crucial for accurately assigning X‐ray peaks and verifying structural details. Furthermore, the analysis of X‐ray diffraction peaks and the examination of crystalline domains via transmission electron microscopy enabled the proposal of a hexagonal arrangement of Si−O−Si cages over long ranges within the ionic bridged silsesquioxane. This proposed arrangement highlights a distinctive structural organization that could impact the material's properties and applications.
Anmerkungen zur Baukonstruktion der klassischen Moderne anlässlich der Gründung der Gemeinnützigen Heimstätten AG (GEHAG) vor 100 Jahren
Authors: Adam Steffen 
Published: August 2024

AbstractAnlässlich des 100. Jahrestages der Gründung der GEHAG am 14. April 1924 luden der Architekten‐ und Ingenieurverein zu Berlin‐Brandenburg e. V. (AIV) und das August Bebel Institut (ABI) im April 2024 zu einer Tagung am historischen Ort, dem Berliner Gewerkschaftshaus ein. Hier wurde den Nachfolgern der Auftraggeber für das Neue Bauen – Wohnungsbaugenossenschaften, Gewerkschaften, Kommunale Wohnungswirtschaft, Konsum, AOK u. a. vorgestellt, worin der Fortschritt des Neuen Bauens für die'Versorgung der Bevölkerung eines Groß‐Berlin mit Wohnraum‘ bestand.
The Effect of Mud Cracking on the Performance of Thick Li‐Ion Electrodes
Authors: Dawson Will J. , Morrison Andrew R. T. , Iacoviello Francesco , Boyce Adam M. , Giri Gargi , Li Juntao , Miller Thomas S. , Shearing Paul 
Published: August 2024

AbstractElectrode‐level fracture, or mud cracking, occurs during the drying process of Li‐ion electrodes and is known to be particularly prevalent in thick electrodes. Whilst these cracks are generally viewed as an obstruction to the production of thicker, more energy dense electrodes, cracks are similar in structure to directional pore channels which have been proposed as a means of improving ion transport to produce thicker electrodes more capable of performing at higher rates. However, existing literature has not thoroughly investigated the influence of cracking on the performance of electrodes. Here we analyse the 3D structure of thick cracked electrodes for the first time, using X‐ray computed tomography. We show that mud cracking enhances the performance of Li‐ion electrodes at discharge rates above 1 C and evaluate the implications on ion transport of different crack geometries by analysis of Euclidian distance maps.
Metal Coordination Compounds for Organic Redox Flow Batteries
Authors: Gao Jiayi , Xia Lixing , Ou Miaoning , Tan Zhan'ao 
Published: August 2024

AbstractAlong with the continuous optimization of the energy structure, more and more electricity come from intermittent renewable energy sources such as wind and solar energy. Redox flow batteries (RFBs) have the advantage that energy and power can be regulated independently, so they are widely used in large‐scale energy storage. Redox active materials are the important components of RFBs, which determine the performance of the battery and the cost of energy storage. Some metal coordination compounds (MCCs) and their derivatives have been considered redox active materials that can replace metal‐based redox flow batteries due to their properties such as tunability, high abundance and sustainability. MCCs can provide higher energy density because they are highly soluble both in the initial state and in any charged state during the battery cycling process. MCCs have also attracted a lot of attention from researchers because of their high economic value, low toxicity, and wide availability. This review provides an overview of the recent development of soluble metal coordination compounds, such as Ferrocene, and concludes with an in‐depth discussion of the prospects of metal coordination compounds for application in organic redox flow batteries.
Exploring LGBTQ+ teacher professional identity through the power threat meaning framework
Authors: Brett Adam , Bodfield Kalum , Culshaw Aisling , Johnson Ben 
Published: August 2024

AbstractIn addition to the mounting stresses associated with teaching in the UK resulting from decades of neoliberal reform (Ball, 2021), lesbian, gay, bisexual, transgender and queer (LGBTQ+) teachers experience a range of challenges to their professional identity from institutions that perpetuate the gender binary and hegemonic heteronormativity. Consequently, there is an urgent need for a deeper understanding of how these teachers can be better supported to thrive in education settings. To begin to address this, this pilot study employs the Power, Threat, Meaning Framework (PTMF) with five LGBTQ+ teachers. The main findings from this study are that teachers experience power as a form of self‐surveillance and policing but also positively, as a tool to reclaim space for positive representation. Threats came principally from media and parents and impacted participants’ sense of inclusion/exclusion in practice. Finally, participants made meaning of their experience through channelling their LGBTQ+ activism into EDI leadership roles, reclaiming space as a role model and using visual tokens to prompt ‘micro‐moments’ of connection. The results of this study demonstrate the potential of the PTMF for future research to support LGBTQ+ teachers in practice and that the rigid nature of the framework may benefit from a more holistic approach to data analysis.
Biosynthesis of copper nanoclusters for fluorescence detection of bilirubin in biofluids
Authors: Molatrati Kousalya , Borse Shraddha , Ghosh Subhadeep , Jha Sanjay , Murthy Z. V. P. , Kailasa Suresh Kumar , Park Tae Jung 
Published: August 2024

AbstractCopper nanoclusters (Cu NCs) have shown significant attention in sensing of molecular and ionic species. In this work, a single‐step biosynthetic approach was introduced for the preparation of fluorescent Cu NCs using Holarrhena pubescens (H. pubescens) leaves extract as a template. The synthesized H. pubescens–Cu NCs act as a nanomolecular probe for the detection of bilirubin in biofluids. The synthesized H. pubescens–Cu NCs displayed highest fluorescence intensity at 454 nm, when excited at 330 nm. Importantly, selective detection of bilirubin was obtained by introducing H. pubescens–Cu NCs as a simple molecular probe. The interaction of bilirubin and H. pubescens–Cu NCs resulted in a remarkable decrease in the emission peak intensity. The developed H. pubescens–Cu NCs‐based bilirubin molecular probe has a wide linear range of 0.5–20.00 μM with the limit of detection of 30.54 nM for bilirubin. The promising application of H. pubescens–Cu NCs‐based molecular probe was assessed by assaying bilirubin in spiked biofluids.
Luminescence performance and antioxidant properties of selenium carbon dots prepared from selenium‐hyperaccumulating plants
Authors: Cui Jingwen , Yang Yuwei , Zhang Yashuai , Yang Xu , Liu Yu , Tan Jianfeng , Wu Shaowei , Liu Zhuo 
Published: August 2024

AbstractHeteroatom doping has become an important method to enhance the performance of traditional carbon dots in modern times. Selenium (Se) is a nonmetallic trace element with excellent redox properties and is therefore essential for health. Previous studies have mainly used pure chemicals as selenium sources to prepare selenium‐doped carbon dots (Se‐CDs), but the precursor pure chemicals have the disadvantages of being expensive, difficult to obtain, toxic, and having low fluorescence yields of the synthesised Se‐CDs. Fortunately, our team achieved successful synthesis of selenium carbon dots, exhibiting excellent luminescence and biocompatibility through a one‐step hydrothermal method using selenium‐enriched natural plant Cardamine, as an alternative to selenium chemicals. This approach aims to address the limitations and high costs associated with Se‐CDs precursors. Electron spin resonance spectroscopy (ESR) and cellular antioxidant tests have confirmed the protective ability of Se‐CDs against oxidative damage induced by excessive reactive oxygen species (ROS). A new concept and method for synthesizing selenium carbon dots on the basis of biomass, a rationale for the antioxidant effects on human health, and a wide range of development and application possibilities were offered in this work.
Relationship Between Cryoprotectant Potential and Protein Hydration in Aqueous Zwitterionic Solutions
Authors: Takekiyo Takahiro , Yamada Shuto , Hirata Tetsuya , Ishizaki Takeru , Kuroda Kosuke , Yoshimura Yukihiro 
Published: August 2024

ABSTRACTThe cryoprotectant potential of 3‐(1‐(2‐(2‐methoxyethoxy)ethyl)imidazol‐3‐io)butane‐1‐carboxylate (OE2imC3C) for proteins necessitates assessment to elucidate its relationship with protein hydration. To reveal this relationship, we assessed the protein stability (pre‐freezing and post‐thawing) and melting behavior in dilute aqueous protein–OE2imC3C solutions containing varying mole fractions (x) of OE2imC3C (x = 0, 7.7 × 10−3, and 1.7 × 10−2) using Fourier‐transform infrared (FTIR) and near‐UV circular dichroism (near‐UV CD) spectroscopy and differential scanning calorimetry (DSC) techniques. Following freezing/thawing using a deep freezer, protein stability in aqueous OE2imC3C solutions (x = 1.7 × 10−2) preserved the folded state owing to the protein–OE2imC3C interaction, whereas stability at x = 7.7 × 10−3 was reduced. These results indicate that the protein cryoprotectant potential in aqueous OE2imC3C solutions at x = 1.7 × 10−2 is higher than that at x = 7.7 × 10−3, owing to the preferential binding of OE2imC3C with proteins.
Assessment of the anticancer potential of certain phenolic and flavonoid components in ginger capsules using colorectal cancer cell lines coupled with quantitative analysis
Authors: Al Azzam Khaldun M. , Al‐Areer Nadeen Waleed , Al Omari Rima H. , Al‐Deeb Ibrahim , Bounoua Nadia , Negim El‐Sayed , Al‐Samydai Ali , Aboalroub Adam A. , Said Rana 
Published: August 2024

AbstractColorectal cancer (CRC) is the fourth most common cause of malignant tumor death. The development of novel, more effective drugs is desperately needed to treat CRC. Zingiber officinale is believed to possess anticancer properties due to its flavonoids and phenols. Using Soxhlet (SOXT) and maceration (MACR) techniques, the present study aimed to evaluate the amounts of quercetin, gallic acid, rutin, naringin, and caffeic acid in ginger capsules of Z. officinale. High‐performance liquid chromatography (HPLC)/ultraviolet was used for separation and quantitation. In vitro toxicity evaluation of ginger capsules on the CRC cell line HT‐29 was also conducted to assess the anticancer activity of the supplement. The cell line HT‐29 (HTB‐38) colorectal adenocarcinoma was utilized for the antiproliferative effect of 3‐(4,5‐dimethylthiazol‐2‐yl)‐2,5‐diphenyl tetrazolium bromide. Ginger herbal supplement extract at dosages of 200 and 100 μg had strong cytotoxic effects (IC50 < 50 μg/mL) on HT‐29 CRC cells via MACR. This extract is comparable to the SOXT extract, which has an IC50 of less than 50 μg/mL. The anticancer effect of ginger herbal supplement formulations against CRC lines was investigated, and the results obtained from both the MACR and SOXT extraction procedures were noteworthy. The quercetin content was the highest of all the extracts according to the HPLC data.
Targeting the epigenome with advanced delivery strategies for epigenetic modulators
Authors: Guha Sonia , Jagadeesan Yogeswaran , Pandey Murali Monohar , Mittal Anupama , Chitkara Deepak 
Published: August 2024

AbstractEpigenetics mechanisms play a significant role in human diseases by altering DNA methylation status, chromatin structure, and/or modifying histone proteins. By modulating the epigenetic status, the expression of genes can be regulated without any change in the DNA sequence itself. Epigenetic drugs exhibit promising therapeutic efficacy against several epigenetically originated diseases including several cancers, neurodegenerative diseases, metabolic disorders, cardiovascular disorders, and so forth. Currently, a considerable amount of research is focused on discovering new drug molecules to combat the existing research gap in epigenetic drug therapy. A novel and efficient delivery system can be established as a promising approach to overcome the drawbacks associated with the current epigenetic modulators. Therefore, formulating the existing epigenetic drugs with distinct encapsulation strategies in nanocarriers, including solid lipid nanoparticles, nanogels, bio‐engineered nanocarriers, liposomes, surface modified nanoparticles, and polymer–drug conjugates have been examined for therapeutic efficacy. Nonetheless, several epigenetic modulators are untouched for their therapeutic potential through different delivery strategies. This review provides a comprehensive up to date discussion on the research findings of various epigenetics mechanism, epigenetic modulators, and delivery strategies utilized to improve their therapeutic outcome. Furthermore, this review also highlights the recently emerged CRISPR tool for epigenome editing.
The effect of increasing motor end‐plate innervation on smile activation in acute and early facial palsy
Authors: Pannuto Lucia , Khajuria Ankur , Kannan R. Y. 
Published: August 2024

AbstractWhile it has been over half a century since primary cross‐facial nerve grafting was first described for facial reanimation, the outcome of this procedure, remains inconsistent and provide lesser smile excursion when compared to the likes of the masseteric nerve. However, the latter itself has limitations in terms of the lack of spontaneity and resting tone. While combinations have been attempted more proximally, we ask the question as to whether more distal nerve transfers with vascularized nerve grafts are a better option. In a retrospective review of clinical practice at our institute, 16 consecutive patients had single, double, and finally triple distal nerve transfers, close to the target facial muscle to reinnervate the motor endplates directly, over a 6‐year period (2018–23). All patients had the onset of facial palsy within 18 months. Statistical analysis of the comparison between three sub‐cohorts was performed using student's t‐test and one‐way ANOVA, respectively. Qualitatively, masseteric neurotization of a single facial nerve branch translated into smile improvement in 50% of cases, as opposed to all cases of double‐ and triple‐neurotization of the smile muscles. In terms of upper lip elevation, single neurotization showed improvement in 25% of cases, double‐neurotization in 40% of cases and triple‐neurotization in 100% of cases. Upper lip elevation was also significantly better in those who had a vascularized cross‐facial nerve graft (Student's t‐test <0.05). In summary, increasing neural input to the motor endplates of smile muscles can significantly improve smile activation, in acute flaccid facial palsies.
Enhancing food access in a comprehensive cancer center area of influence through local partner capacity building
Authors: Loomba Preena , Raber Margaret R. , Aquino Mayra , Rincon Nikki , Rumfield Lori , Basen‐Engquist Karen M. , Rechis Ruth 
Published: August 2024

AbstractBackgroundFood insecurity, an economic and social condition of limited food access, is associated with poor diet quality—a risk factor for several common cancers. The University of Texas MD Anderson Cancer Center supports healthy food access through community‐led evidence translation by actively partnering with community‐based organizations (CBOs). These partnerships aim to enhance the capacity of food assistance CBOs to effectively implement evidence‐based food insecurity mitigation programs in the cancer center's area of influence.MethodsThis case study aims to describe the cancer center's model for local food access capacity building and detail operationalization in the context of a whole‐community cancer prevention effort (Be Well Baytown) in Baytown, Texas.ResultsElements central to the capacity building model include (i) assessment of baseline needs and capacity, (ii) empowering a community champion within a relevant CBO, (iii) mapping inter‐sectoral community partnerships, collaborations, and linkages, and (iv) leveraging systems, connections, and resources to provide an enabling environment for overall food access systems growth. Through this process, Be Well Baytown enhanced the capacity of a local food pantry leading to increases in total reach, pounds of food distributed, and number of food distribution events in collaboration with intersectoral partners from 2018 to 2023.ConclusionThis case study highlights the model's implementation as a co‐benefit community partnership strategy to maximize the impact of food security programs integrated with comprehensive cancer center prevention efforts.