bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancement of viscoelastic property of MABS processed by melt compounding and injection molding
Authors: Sujon Md. Abu Shaid , Madsen Jeppe , Christiansen Jesper de Claville , Islam Aminul 
Published: November 2022

AbstractThis work is focused on developing a new type of polymer blend to improve the viscoelastic property of methyl methacrylate acrylonitrile butadiene styrene (MABS). A multi‐phase binary polymer blend was prepared by melt mixing in a twin screw extruder with three different weight ratios (10, 20, and 30 wt%) with a dynamically vulcanized alloy consisting mostly of fully cured ethylene propylene diene rubber (EPDM) particles encapsulated in a polypropylene (PP) matrix trade name Santoprene and an engineered styrene based thermoplastic elastomer trade name VDT to enhance the viscoelastic property of the blends. The compatibility and performance of the binary blend were studied by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), Fourier transform infrared (FT‐IR) spectroscopy, nuclear magnetic resonance (NMR), laser microscopy, scanning transmission electron microscopy (STEM) and tensile analysis. The DMA analysis of the samples revealed that the damping performance was significantly increased with the incorporation of the elastomeric phase into the MABS matrix. In addition, the morphological analysis revealed that VDT is more compatible with MABS compared to Santoprene. The NMR and FT‐IR analysis further supported the reason for higher compatibility of VDT and MABS blend. The improvement of the damping properties has been observed with the increased wt % of the VDT and Santoprene in the blends.
Investigation of the tetraethoxysilane‐derived sol–gel process by rheological oscillation test and the effect of different synthetic parameters
Authors: Lu Zichen , Zhang Ting , Liu Zhiwei , Kong Xiangming , Sun Zhenping 
Published: November 2022

AbstractThe tetraethoxysilane (TEOS)‐derived sol–gel process was systematically investigated by the rheological oscillation test and the effect of different synthetic parameters, including TEOS concentration, water content, base catalyst concentration and temperature, on the viscoelastic properties of the formed gel was analyzed. It is found that the rheological oscillation test provides an efficient and accurate way to determine the gelation time in the sol–gel process. The time at which the storage modulus and loss modulus intersect can be regarded as the gelation time in the sol–gel process and it matches well with the time observed with the naked eyes. Furthermore, both the increased TEOS and base catalyst concentration can be beneficial to the improvement of the gel elasticity, which could be related to the increased concentration of silica primary particles and its condensation reaction rate. However, the increased water content and temperature lead to a first increase and then a decrease in the elasticity of the gel. The proper molar ratio of TEOS to water is 0.67:4.01 and the suitable reaction temperature is 318 K in this study.
Synthesis and characterization of tetrafluorophenyl phosphonic acid functionalized polyacrylates as potential proton conducting materials in fuel cells
Authors: Alter Christian , Weitkamp Robin F. , Hoge Berthold 
Published: November 2022

AbstractNovel acrylate polymers functionalized with tetrafluorophenyl phosphonic acid groups were prepared by free radical polymerization of phosphonic ester acrylate monomers. Liberation of the free acid functions was realized by ester cleavage with Me3SiBr and the subsequent hydrolysis with methanol. The obtained polymers were analyzed by NMR and IR spectroscopy. The ion exchange capacity of the phosphonic acid functionalized methacrylate polymer was determined to 2.8 mmol/g by titration with 0.1 M NaOH. The proton conductivity under anhydrous conditions was determined to 6.84 × 10−6 Scm−1 at 120°C by electrochemical impedance spectroscopy.
Enhancement of mechanical properties of high modulus polypropylene grade for multilayer sewage pipes applications
Authors: Khoury Moussa Helena , Challita Georges , Badreddine Houssem , Montay Guillaume , Guelorget Bruno , Vallon Thomas , Yared Wadih , Abi Rizk Marwan , Alhussein Akram 
Published: November 2022

AbstractAdvances in technology have provided fresh generations of stiff polypropylene block copolymers for gravity sewerage applications. The aim of this study is to further enhance the stiffness of these materials through the incorporation of inorganic fillers. In this study, three talc filled PP and one glass fiber filled PP composites were characterized in order to be used as a middle layer in a three‐layer sewage pipe. The obtained results showed an increase of approximately more than 100% and 250% in tensile and flexural moduli by the use of 30%–50 wt% talc‐filled PP and 30 wt.% glass fiber‐filled PP, respectively. This high increase in the rigidity of the material would allow manufacturing pipes with improving ring stiffness. Composites filled with 30 wt% talc or glass fiber showed good filler‐matrix interaction and good filler distribution and dispersion. However, reduced filler‐matrix interaction was observed in the case of the composite filled with 50 wt% talc. In addition, the use of Differential Scanning Calorimetry analysis revealed that the addition of fillers enhanced the crystallization temperature of the polypropylene matrix. Furthermore, Thermogravimetric Analysis showed that the high modulus PP grade retained its thermal stability in the various composites.
High performance and water‐degradable poly(neopentyl terephthalate‐co‐neopentyl succinate) copolymers: Synthesis, properties, and hydrolysis in different aquatic bodies
Authors: Dong Liming , Zhou Yingmei , Liu Yuanyuan , Lu Bo , Ji Junhui , Ding Yue 
Published: November 2022

AbstractDesigning high‐performance water‐degradable plastics is an important way to address marine microplastic pollution. A series of poly(neopentyl terephthalate‐co‐neopentyl succinate) (PNST) copolymers were synthesized using the one‐step melt‐polycondensation method. The 1H‐NMR results showed that the neopeantyl succinate (NS) and neopeantyl terephthalate (NT) segments were randomly distributed, and the Fox model indicated that they demonstrate good compatibility. The PNST copolymers showed excellent mechanical properties. The tensile strength of poly(neopentyl terephthalate) (PNT) was 50.3 MPa, and the elongation at break was 10.0%. SA segments improved the flexibility of the PNT units, and the elongation at break of PNS was 2200%, which was more than 220 times than that of the PNT copolymer. The PNST copolymer had two decomposition platforms. The fastest decomposition rate of PNS occurred at 450°C, and that of PNT at 500°C. SA units improved the rotation and hydrophilic properties of the chains, which allowed for degradation and reduced the water contact from 102.9° to 68.9°. The weight loss of PNS was more than 20% after degrading in alkaline solution for 49 days, and 1% and 1.9% in neutral and acid solution, respectively. Thus, PNST copolymers are promising water‐degradable materials with good tensile and excellent thermal properties.
Gender and country biases in Wikipedia citations to scholarly publications
Authors: Zheng Xiang , Chen Jiajing , Yan Erjia , Ni Chaoqun 
Published: November 2022

AbstractEnsuring Wikipedia cites scholarly publications based on quality and relevancy without biases is critical to credible and fair knowledge dissemination. We investigate gender‐ and country‐based biases in Wikipedia citation practices using linked data from the Web of Science and a Wikipedia citation dataset. Using coarsened exact matching, we show that publications by women are cited less by Wikipedia than expected, and publications by women are less likely to be cited than those by men. Scholarly publications by authors affiliated with non‐Anglosphere countries are also disadvantaged in getting cited by Wikipedia, compared with those by authors affiliated with Anglosphere countries. The level of gender‐ or country‐based inequalities varies by research field, and the gender‐country intersectional bias is prominent in math‐intensive STEM fields. To ensure the credibility and equality of knowledge presentation, Wikipedia should consider strategies and guidelines to cite scholarly publications independent of the gender and country of authors.
Maladaptive behaviors in children with autism and parental hopelessness: The moderating role of parental reflective functioning
Authors: Enav Yael , Knudtson Marguerite V. , Hardan Antonio Y. , Gross James J. 
Published: November 2022

AbstractHopelessness in parents has implications for parents' own well‐being as well as their ability to meet the needs of their children. In the present study, we examined the effect of maladaptive behaviors in children with autism on parental hopelessness, with particular attention to whether parental reflective functioning would moderate the effect of maladaptive behaviors on parental hopelessness. Our sample included 68 parents of children with autism between the ages of 3 and 18. Findings revealed a significant positive relationship between maladaptive behaviors in the children and hopelessness in the parents. Moreover, parental reflective functioning moderated the effect of child maladaptive behaviors on parental hopelessness, such that children's maladaptive behaviors were positively associated with parental hopelessness in parents with low (but not high) reflective functioning. Findings suggest parental reflective functioning may be a protective factor against parental hopelessness, and thus a possible target for interventions for hopelessness in parents whose children with autism exhibit greater maladaptive behaviors.
Can the UK AQ‐10 be applicable to Chinese samples with autism spectrum disorder in Hong Kong? Cross‐cultural similarities and differences
Authors: Leung Cecilia N. W. , Leung Cindy Sin Yu , Chan Raymond W. S. , Leung Patrick W. L. 
Published: November 2022

AbstractThe current study aimed at testing and developing alternative short versions of autism spectrum quotient (AQ‐10) (adult [self‐report], adult [parent‐report], adolescent, and child versions) for use in Hong Kong. First, the various versions of AQ‐10 developed in the United Kingdom (the AQ‐10‐UK) were applied to Hong Kong Chinese samples and demonstrated satisfactory discriminative power (AUCs 0.77–0.94). Second, the Hong Kong Chinese versions of AQ‐10 (AQ‐10‐HK) were developed, using the same methodology as in the original UK study. There were some changes in the choice of items and cut‐offs. The AQ‐10‐HK demonstrated slightly greater discriminative power (AUCs 0.88–0.97) to that of the AQ‐10‐UK, but the differences in AUCs were not statistically significant. Compared to the corresponding full‐length versions, both the UK and HK short forms did not seem to lose any significant discriminative power. Yet, the various versions of AQ, be they the full‐length or AQ‐10, appeared to consistently exhibit slightly smaller AUCs with the Hong Kong Chinese samples than with the UK samples. So, this study found both cross‐cultural similarities and differences. The AQ‐10‐HK was recommended for local practice to maximize the advantage gained. Yet, for international multi‐site research collaboration, involving the UK and HK, the original AQ‐10‐UK can be used for direct comparison of data.
The role of affinity for prosumption experiences and values
Authors: Wolf Marco , Ritz Wendy , McQuitty Shaun 
Published: November 2022

AbstractProsumers are individuals who produce goods they consume themselves. The prosumption literature suggests that prosumption can be enhanced through knowledge sharing, creativity and innovation, and developing expertise. In this article, we investigate the relationships between prosumption experiences, prosumption values, and affinity with a prosumption activity. We use a structural equation model approach to evaluate the relationships between these constructs and assume that affinity can mediate the relationship between prosumption experiences and values. We collect empirical data from prosumers who homebrew their own beer and confirm that prosumption experiences and values are positively related, and that affinity mediates the relationship between experiences and values. Implications deriving from these findings are discussed along with directions for future research.
Development of the First Tritiated Tetrazine: Facilitating Tritiation of Proteins
Authors: Radjani Bidesi Natasha Shalina , Battisti Umberto Maria , Lopes van de Broek Sara , Shalgunov Vladimir , Dall Anne‐Mette , Bøggild Kristensen Jesper , Sehlin Dag , Syvänen Stina , Moos Knudsen Gitte , Herth Matthias Manfred 
Published: November 2022

AbstractTetrazine (Tz)–trans‐cyclooctene (TCO) ligation is an ultra‐fast and highly selective reaction and it is particularly suited to label biomolecules under physiological conditions. As such, a 3H‐Tz based synthon would have wide applications for in vitro/ex vivo assays. In this study, we developed a 3H‐labeled Tz and characterized its potential for application to pretargeted autoradiography. Several strategies were explored to synthesize such a Tz. However, classical approaches such as reductive halogenation failed. For this reason, we designed a Tz containing an aldehyde and explored the possibility of reducing this group with NaBT4. This approach was successful and resulted in [3H]‐(4‐(6‐(pyridin‐2‐yl)‐1,2,4,5‐tetrazin‐3‐yl)phenyl)methan‐t‐ol with a radiochemical yield of 22 %, a radiochemical purity of 96 % and a molar activity of 0.437 GBq/μmol (11.8 Ci/mmol). The compound was successfully applied to pretargeted autoradiography. Thus, we report the synthesis of the first 3H‐labeled Tz and its successful application as a labeling building block.
Computational fluid dynamics study of kaolin–water flow in a T‐junction using a novel shear‐thinning fluid model
Authors: Garimella Sai Manikiran , Ameenuddin Mohammed , Anand Mohan 
Published: November 2022

AbstractA recently proposed shear‐thinning fluid model that mimics the response of seemingly viscoplastic materials is evaluated in computational fluid dynamics simulations by studying the steady flow of a kaolin–water suspension in a 2D T‐junction. The velocity profiles for the kaolin–water suspension are reported at the mid‐length of the main channel and the root of the bifurcation (where recirculation is expected to appear). The velocity profiles of the proposed model are compared with those from conventional viscoplastic models (Bingham plastic model and the Herschel–Bulkley model) at low (=100) and high Reynolds number (=2000). The new model predicts a recirculation zone (at the inner edge of the bifurcation arm) that conventional models do not. The effect of the variation in the model parameters (α1 and α2) on velocity profiles at low (=100) and high Reynolds numbers (=2000) is also documented. These indicate the disappearance of the recirculation zone at low Reynolds number as α1 (equivalently, viscosity) increases, whereas the recirculation zone persists even for higher values of α1 at high Reynolds number. Further, at low Reynolds number, the skewing of maximum velocity towards the outer edge of the bifurcation arm disappears as α2 increases, whereas the skewing persists even at the highest value of α2 used at the high Reynolds number.
A semantic segmentation method for remote sensing images based on multiple contextual feature extraction
Authors: Shumeng He , Gaodi Xu , Houqun Yang 
Published: November 2022

SummarySemantic segmentation of remote sensing images plays a significant role in many applications such as urban planning and ecological protection, but its semantic segmentation suffers from large intra‐category variation and large differences in the scale of objects, so it is prone to misclassification. To cope with this issue, an embedded channel's categorical attention module (ECCA) is proposed to extract contextual information from the perspective of categories, and a channel attention module is embedded in it to achieve multiple contextual information extraction. Combined with the remote sensing atrous spatial pyramid pooling module (RSASPP), which is composed of atrous convolution with different expansion rates, feature fusion of objects at different scales is achieved. The refinement module (RM) is added for boundary refinement to achieve finer segmentation. Experiments are conducted on the WHDLD dataset to prove the effectiveness of the method.
Disentangling Excimer Emission from Chiral Induction in Nanoscale Helical Silica Scaffolds Bearing Achiral Chromophores
Authors: Álvaro‐Martins Maria João , Garcés‐Garcés José , Scalabre Antoine , Liu Peizhao , Fernández‐Lázaro Fernando , Sastre‐Santos Ángela , Bassani Dario M. , Oda Reiko 
Published: November 2022

AbstractThe synthesis and characterization of diketopyrrolopyrroles and perylenemonoimidodiesters linked to a substituted benzoic acid in the ortho, meta, and para positions, are reported. Grafting of these dyes on the surface of chiral silica nanohelices is used to probe how the morphology of the platform at the mesoscopic level affects the induction of chiroptical properties onto achiral molecular chromophores. The grafted structures are weakly (diketopyrrolopyrroles) or strongly (perylenemonoimidodiesters) emissive, exhibiting both locally‐excited state emission and a broad, structureless emission assigned to excimers. The dissymmetry factors obtained using circular dichroism highlight optimized supramolecular organization between the chromophores for enhancing the chiroptical properties of the system. In the ortho‐ derivatives, poor organization due to steric hindrance is reflected in a low density of chromophores on walls of the silica‐nanostructures (<0.1 vs. >0.3 and up to 0.6 molecules/nm2 for the ortho and meta or para derivatives, respectively) and lower gabs values than in the other derivatives (gabs<2×10−5 vs 6×10−5 for the ortho and para derivatives, respectively). The para derivatives presented a better organization and increased values of gabs. All grafted chromophores evidence varying degrees of excimer emission which was not found to directly correlate to their grafting density.
Integration of Nanographenes and Organic Chemistry – Toward Nanographene‐based Two‐dimensional Materials
Authors: Sekiya Ryo , Haino Takeharu 
Published: November 2022

AbstractThe front cover artwork is provided by Takeharu Haino's group. The image shows the fragmentation of a graphene sheet by chemical oxidation, producing nanographenes. The quantum size effect opens the band gap of nanographenes, allowing them to emit photoluminescence in the visible region. Read the full text of the Concept at 10.1002/cphc.202200311.
Polyoxometalate‐Enhanced 3D‐Printed Supercapacitors
Authors: Palacios‐Corella Mario , Ghosh Kalyan , Redondo Edurne , Pumera Martin 
Published: November 2022

AbstractThe contemporary critical energy crisis demands the fast and cost‐effective preparation of supercapacitors to replace old‐fashioned batteries. 3D‐printing has been established as a fast, cheap, and reliable new manufacturing technique that enables the preparation of such devices.. Unfortunately, carbon‐based filaments used in 3D printing lack the necessary electrical properties to build supercapacitors by themselves and have to be combined with other materials to reach their full potential. In this study, carbon‐based 3D‐printed carbon electrodes (3D‐PCE) have been combined with two polyoxometalates (that share the same redox cluster) by drop casting of the inorganic cluster mixed with a conducting slurry. The modified electrodes show higher capacitances than reference carbon electrodes showing the exceptional properties of the polyoxometalates. Moreover, the different nature of the polyoxometalate counter ions allows for their distinct deposition, giving rise to a different coverage of the surface of the 3D‐PCE. The different coverage and the nature of the interaction of the counter ion with the electrolyte significantly modify the capacitance and resistance of the materials, playing a key role that should not be overlooked during their preparation.
Sperm‐cell DNA fragmentation prediction using label‐free quantitative phase imaging and deep learning
Authors: Noy Lioz , Barnea Itay , Mirsky Simcha K. , Kamber Dotan , Levi Mattan , Shaked Natan T. 
Published: November 2022

AbstractIn intracytoplasmic sperm injection (ICSI), a single sperm cell is selected and injected into an egg. The quality of the chosen sperm and specifically its DNA fragmentation have a significant effect on the fertilization success rate. However, there is no method today to measure the DNA fragmentation of live and unstained cells during ICSI. We present a new method to predict the DNA fragmentation of sperm cells using multi‐layer stain‐free imaging data, including quantitative phase imaging, and lightweight deep learning architectures. The DNA fragmentation ground truth is achieved by staining the cells with acridine orange and imaging them via fluorescence microscopy. Our prediction model is based on the MobileNet convolutional neural network architecture combined with confidence measurement determined by distances between vectors in the latent space. Our results show that the mean absolute error for cells with high prediction confidence is 0.05 and the 90th percentile mean absolute error is 0.1, where the range of DNA fragmentation score is [0,1]. In the future, this model may be applied to improve cell selection by embryologists during ICSI.
Fine‐needle aspiration of scalp masses: A review of 30 cases
Authors: Doan Mary , Ramani Nisha S. , Arbab Farinaz , Green Linda K. 
Published: November 2022

AbstractIntroductionScalp masses are often the initial presentation of a widely disseminated malignancy. Fine‐needle aspiration (FNA) is an optimal method for obtaining an accurate tissue diagnosis, in these patients with initial presentation and those with a known malignancy.Materials and MethodsWe reviewed all FNAs of skin and soft tissue lesions from the scalp at our institution over a period of 31 years (1990–2021). Relevant clinical information was obtained from the review of computerized patient record. The histologic type, presentation, previous diagnoses, and survival after the diagnosis were correlated.ResultsThirty patients with scalp masses were identified. All the patients were males with a median age of 61 years (27–81 years). The scalp masses ranged from 0.4 to 6 cm in size. Ten cases (33%) were benign, but the majority of cases (n = 20, 67%) were malignant. Of the malignant lesions sampled, 1 case was a primary squamous‐cell carcinoma (SCC), and the remaining 19 cases were metastatic tumors. Of these, 13 cases (68.4%) had a previously diagnosed malignancy. Most of the 19 metastatic lesions were adenocarcinomas or poorly differentiated carcinomas (n = 12, 63.2%), followed by melanoma (n = 4), SCC (n = 1), alveolar soft part sarcoma (n = 1) and large cell lymphoma (n = 1). The most common site of primary was the gastrointestinal tract (6/19, 31.5%) and lung (6/19, 31.5%). The average survival after the diagnosis of these scalp metastases was around 6.3 months, signifying a poor prognosis.ConclusionIn our patient population, most scalp masses were metastatic tumors. Metastasis to the scalp signals advanced disease and is associated with a very poor prognosis. FNA is an easy, safe, rapid, cost effective and precise modality for diagnosing these masses. It can also yield material for molecular testing for newer directed therapies, if needed.