bluuebunny/crossref_metadata_2025_split huggingface dataset:
Preparation of Flame Retardant Polycarbonate‐acrylonitrile Butadiene Styrene Composite using Graphene Nanoplatelets and Potassium Perfluorobutane Sulfonate Additives
Authors: Tran Quang Vinh , Nguyen Thi Nhiem , Doan Thi Hai , Thi Tuyet Anh Dang , Nguyen Ha Thanh , Hoang Mai Ha , Huong Pham Thi Lan , Nguyen Van Tuyen 
Published: July 2023

AbstractA flame‐retardant composite material (designated as GFPA) was prepared by incorporating a blend of polycarbonate‐acrylonitrile butadiene styrene (PC/ABS, 80/20 wt%) and two additives of potassium perfluorobutane sulfonate (PFBS) at 0.5 wt% and graphene nanoplatelets (GNP) at 1 wt%. The structural characterization results indicated that incorporating both GNP and PFBS significantly improved the dispersibility of the additives compared to using either of them individually. Furthermore, PFBS exhibited dual properties of a flame‐retardant and PC/ABS compatibilizer, which resulted in improved flame‐retardancy and mechanical characteristics of the GFPA material. The GFPA material was found to exhibit good flame‐retardancy properties with a V‐0 rating as determined by the UL‐94 method and a limited oxygen index of 27.6 %. In addition, the GFPA material exhibited remarkably improved mechanical properties such as enhanced impact strength (1.33 times), tensile strength (3.73 times), and flexural strength (8.61 times) compared to those of the neat PC/ABS composite.
Effect of Different Amounts of Pt on Fe3O4−TiO2 for Photocatalytic H2 Production Under Solar Light
Authors: Firtina‐Ertis Irem , Kerkez‐Kuyumcu Özge 
Published: July 2023

AbstractIn this study, Pt doped Fe3O4−TiO2 photocatalysts were synthesized in two steps; (i) Fe3O4−TiO2 (FT) was prepared by the complex‐assisted vapor thermal (VT) method, (ii) Pt was doped to Fe3O4−TiO2 (FT−Pt) by the polyol method. The effect of different amounts of Pt was investigated for photocatalytic hydrogen production. The absorption spectrum of FT with 5.0 % Pt exhibits a surface plasmon resonance (SPR) peak of ∼420 nm which corresponds to the band gap of 2.95 eV. The FT and Pt doped FT samples showed a less intense photoluminescence (PL) band than TiO2 (T) due to the lower e−/h+ recombination rate. By increasing % wt. Pt in the FT samples, PL intensity was decreased. Thus, Pt plays an essential role to hinder the recombination of e−/h+ pairs. Consequently, FT‐5.0 % Pt showed 144 μmol/g‐cat H2 production rate, just about 3.3 times higher than that of FT photocatalyst; due to the suitable band gap energy and the retarded e−/h+ recombination. Therefore, the synergistic effect of Pt and Fe3O4 is found to be beneficial to decrease the e−/h+ recombination rate thus the photocatalytic activity enhancement was achieved.
Experimental Investigation of Cationic Gemini Surfactants: Self‐Assembly, Corrosion Inhibition, Foaming and Dye Solubilization Properties
Authors: Kasapoğlu Sinem , Batıgöç Çiğdem , Boz Mesut , Tetik Övül 
Published: July 2023

AbstractIn this study, two cationic gemini surfactants 12‐3‐12 and 12‐3(OH)‐12 were synthesized in our labrotory. The critical micelle concentration (CMC) values of synthesized surfactants were determined by conductivity measurements. The aggregation number (Nagg) of micelles was calculated using the pyrene probe fluorescence method. It was been investigated the corrosion effect of cationic gemini surfactants were denoted as 12‐3‐12 and 12‐3(OH)‐12 for carbon steel in 1 M HCl. The inhibition effect was investigated using weight loss, electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP) and scanning electron microscopy (SEM) techniques. It has been determined that both surfactants showed the best inhibitory effect at low concentrations. The foaming capacity (FC) and the foam stability (FS) of gemini surfactants were studied by measuring the foam volume for 0.5 % (w/v) surfactant solutions and it was observed that the foaming properties of 12‐3(OH)‐12 gemini surfactant were better. The solubility capability of both surfactants was tested with the water‐insoluble dye Sudan Red B and it was observed that the solubility increased significantly over the CMC value of the cationic gemini surfactants. Finally, the corrosion effect, foam capacity and foam stability and effects on paint solubility of the synthesized surfactants were obtained at very low concentrations.
Discovery of Anti‐Breast Cancer Thiophene Sulfonamide Derivatives: Design, Synthesis, Molecular Docking against EGFR, MM‐PBSA, MD Simulations, ADME/Tox, and in vitro Studies
Authors: Patel Ashish K. , Shah Ujashkumar A , Soni Jigar Y. , Metwaly Ahmed M. , Elkaeed Eslam B. , Eissa Ibrahim H. , Teli Divya M. , Patel Purvesh R. , Patel Bhavin H. , Valand Nikunj , Patel Manish B. 
Published: July 2023

AbstractWith aim of developing the crucial pharmacophoric properties of the reported EGFR inhibitors (EGFRIs), a series of thiophene compounds having ethyl 5‐methylthiophene‐3‐carboxylate core were designed. The designed compounds were subjected to molecular docking studies that indicated the potentialities of compounds AP−A8, A9, A13 and A15 to be EGFRIs. Then, the MD simulations studies confirmed the stability and the correct binding of compound AP−A15 – EGFR complex at both energetic and conformational levels. Furthermore, in silico ADMET prediction revealed that the majority of the proposed compounds had drug‐like characteristics and have minimal toxicity and unfavourable side effects. The designed compounds were synthesized and there in vitro anticancer activity against the cancer cell line (MCF‐7) was measured. Ethyl 5‐methyl‐4‐phenyl‐2‐(2‐(4‐(thiophen‐2‐ylsulfonyl)piperazin‐1‐yl)acetamido)thiophene‐3‐carboxylate (AP−A15) was found to be most potent compound with EC50values 3.5 μM, which was very close to Tamoxifen and Brigatinib. Majority compounds showed good to moderate cytotoxic activities ranging from 3.5 μM to 35.9 μM.
Thermodynamically Induced Interfacial Condensation for Efficient Fog Harvesting
Authors: Ji Yating , Yang Weifeng , Li Xiaoyan , Hou Keru , Du Peibo , Zhao Hong , Fan Zhuizhui , Xu Bi , Cai Zaisheng 
Published: July 2023

AbstractFog harvesting is a sustainable approach to dealing with the global freshwater crisis. A range of strategies in microstructure design and wettability remodeling for fog management are clearly explained. However, the influence of thermodynamic endothermic and exothermic processes on fog harvesting is rarely explored. Here, a thermodynamically induced interfacial condensation‐enhanced fog‐harvesting fabric (AWF‐6) is developed that also incorporates asymmetric geometry and surface chemistry. By coupling the high thermal conductivity interface supported by boron nitride nanosheets (BNNS), the Laplace pressure difference generated by nanoneedles, and the wettability gradient constructed by stearic acid (STA), the fabric achieves a water collection rate (WCR) of 1538.4 mg h cm−2, which is the maximum value in state‐of‐the‐art cotton‐based fog harvesting devices (FHDs). Furthermore, the potential application of AWF‐6 in agricultural irrigation is demonstrated. This study shows a thermodynamic proposal for building next‐generation fibrous FHDs.
Lorentz symmetry and IR structure of the BFSS matrix model
Authors: Tropper Adam , Wang Tianli 
Published: July 2023

Abstract
The BFSS matrix model relates flat space M-theory to a large N limit of matrix quantum mechanics describing N non-relativistic D0-branes. M-theory, being a theory of gravity in flat space, has a rich infrared structure that includes various soft theorems and an infinite set of conserved charges associated to asymptotic symmetries. In this work, we ask: to what extent is this infrared structure present in BFSS? We find that all the salient features concerning the infrared structure of M-theory carry over naturally to the quantum mechanics dual. Moreover, we demonstrate that the dual statement of the soft graviton theorem in the matrix model implies that D0-brane scattering amplitudes in BFSS enjoy the full 11d Lorentz symmetry of M-theory, a claim which has been long anticipated. We also offer several first-principle consistency checks for our findings, including a computation of the soft theorem which does not presuppose the BFSS duality and a non-trivial match between several known symmetries of M-theory and BFSS that appear naturally in this formalism. These calculations give non-perturbative evidence in support of the BFSS duality as a model of flat space holography.
WD repeat domain 82 (Wdr82) facilitates mouse iPSCs generation by interfering mitochondrial oxidative phosphorylation and glycolysis
Authors: Cui Guina , Zhou Jingxuan , Sun Jiatong , Kou Xiaochen , Su Zhongqu , Xu Yiliang , Liu Tingjun , Sun Lili , Li Wenhui , Wu Xuanning , Wei Qingqing , Gao Shaorong , Shi Kerong 
Published: July 2023

Abstract
Background
Abundantly expressed factors in the oocyte cytoplasm can remarkably reprogram terminally differentiated germ cells or somatic cells into totipotent state within a short time. However, the mechanism of the different factors underlying the reprogramming process remains uncertain.

Methods
On the basis of Yamanaka factors OSKM induction method, MEF cells were induced and reprogrammed into iPSCs under conditions of the oocyte-derived factor Wdr82 overexpression and/or knockdown, so as to assess the reprogramming efficiency. Meanwhile, the cellular metabolism was monitored and evaluated during the reprogramming process. The plurpotency of the generated iPSCs was confirmed via pluripotent gene expression detection, embryoid body differentiation and chimeric mouse experiment.

Results
Here, we show that the oocyte-derived factor Wdr82 promotes the efficiency of MEF reprogramming into iPSCs to a greater degree than the Yamanaka factors OSKM. The Wdr82-expressing iPSC line showed pluripotency to differentiate and transmit genetic material to chimeric offsprings. In contrast, the knocking down of Wdr82 can significantly reduce the efficiency of somatic cell reprogramming. We further demonstrate that the significant suppression of oxidative phosphorylation in mitochondria underlies the molecular mechanism by which Wdr82 promotes the efficiency of somatic cell reprogramming. Our study suggests a link between mitochondrial energy metabolism remodeling and cell fate transition or stem cell function maintenance, which might shed light on the embryonic development and stem cell biology.
Prediction of reinforced concrete walls shear strength based on soft computing-based techniques
Authors: Tabrizikahou Alireza , Pavić Gordana , Shahsavani Younes , Hadzima-Nyarko Marijana 
Published: July 2023

AbstractThe precise estimation of the shear strength of reinforced concrete walls is critical for structural engineers. This projection, nevertheless, is exceedingly complicated because of the varied structural geometries, plethora of load cases, and highly nonlinear relationships between the design requirements and the shear strength. Recent related design code regulations mostly depend on experimental formulations, which have a variety of constraints and establish low prediction accuracy. Hence, different soft computing techniques are used in this study to evaluate the shear capacity of reinforced concrete walls. In particular, developed models for estimating the shear capacity of concrete walls have been investigated, based on experimental test data accessible in the relevant literature. Adaptive neuro-fuzzy inference system, the integrated genetic algorithms, and the integrated particle swarm optimization methods were used to optimize the fuzzy model’s membership function range and the results were compared to the outcomes of random forests (RF) model. To determine the accuracy of the models, the results were assessed using several indices. Outliers in the anticipated data were identified and replaced with appropriate values to ensure prediction accuracy. The comparison of the resulting findings with the relevant experimental data demonstrates the potential of hybrid models to determine the shear capacity of reinforced concrete walls reliably and effectively. The findings revealed that the RF model with RMSE = 151.89, MAE = 111.52, and$${R}^2$$R2= 0.9351 has the best prediction accuracy. Integrated GAFIS and PSOFIS performed virtually identically and had fewer errors than ANFIS. The sensitivity analysis shows that the thickness of the wall$$({b_\mathrm{{w}}})$$(bw)and concrete compressive strength$$({f_\mathrm{{c}}})$$(fc)have the most and the least effects on shear strength, respectively.
The effect of increased plasma potassium on myocardial function; a randomized POTCAST substudy
Authors: Winsløw Ulrik , Sakthivel Tharsika , Zheng Chaoqun , Philbert Berit , Vinther Michael , Frandsen Emil , Iversen Kasper , Bundgaard Henning , Jøns Christian , Risum Niels 
Published: July 2023

AbstractPlasma potassium (p-K) in the high-normal range has been suggested to reduce risk of cardiovascular arrythmias and mortality through electrophysiological and mechanical effects on the myocardium. In this study, it was to investigated if increasing p-K to high-normal levels improves systolic- and diastolic myocardial function in patients with low-normal to moderately reduced left ventricular ejection fraction (LVEF). The study included 50 patients (mean age 58 years (SD 14), 81% men), with a mean p-K 3.95 mmol/l (SD 0.19), mean LVEF 48% (SD 7), and mean Global Longitudinal Strain (GLS) -14.6% (SD 3.1) patients with LVEF 35–55% from “Targeted potassium levels to decrease arrhythmia burden in high-risk patients with cardiovascular diseases trial” (POTCAST). Patients were given standard therapy and randomized (1:1) to an intervention that included guidance on potassium-rich diets, potassium supplements, and mineralocorticoid receptor antagonists targeting high-normal p-K levels (4.5-5.0 mmol/l). Echocardiography was done at baseline and after a mean follow-up of 44 days (SD 18) and the echocardiograms were analyzed for changes in GLS, mechanical dispersion, E/A, e’, and E/e’. At follow-up, mean difference in changes in p-K was 0.52 mmol/l (95%CI 0.35;0.69), P<0.001 in the intervention group compared to controls. GLS was improved with a mean difference in changes of -1.0% (-2;-0.02), P<0.05 and e’ and E/e’ were improved with a mean difference in changes of 0.9 cm/s (0.02;1.7), P = 0.04 and ? 1.5 (-2.9;-0.14), P = 0.03, respectively. Thus, induced increase in p-K to the high-normal range improved indices of systolic and diastolic function in patients with low-normal to moderately reduced LVEF.
Exploiting number theory for dynamic software watermarking
Authors: Dalla Preda Mila , Ianni Michele 
Published: July 2023

AbstractSoftware watermarking is a protection technique which aims at combating software piracy, thus defending intellectual property, by embedding stegosignatures or watermarks into a program. In the presence of an illegal copy of the program, the owner can reliably claim her rights by extracting the watermark from the program itself. In this paper, we introduce a new software watermarking technique which can be used even with compiled programs. The proposed technique is dynamic: the watermark can be recovered during the execution of the program and it is related to a specific path of execution that is triggered by a given input. We illustrate the technique by means of a watermarking protocol for C/C++/C# source code which tackles many different challenges in the task of encoding the watermark, embedding it into a source code and extracting it from a compiled program. We show the validity of our approach by proving its robustness against common attacks.
Sexueller Kindesmissbrauch im Darknet: Sexualisierung von Kindern in textbasierten Storys aus einem „Girl-Lover“-Forum
Authors: Krähnke Uwe , Hurst Lilian , Schumann Judith , Huikuri Salla , Bussweiler Julia , Lehmann Robert 
Published: July 2023

ZusammenfassungVor dem Hintergrund, dass aktuell in Deutschland das Konsumieren und der Besitz von rein textbasierten kinderpornografischen Inhalten im Gegensatz zu fotografischen und videografischen Darstellungen nicht strafbar ist, zeigt der Beitrag auf, inwiefern in Storys aus einem „Girl Lover“-Forum im Darknet sexualisierte Gewalt an Kindern thematisiert wird. Anhand einer durchgeführten inhaltlich-formalen Textanalyse konnte nachgewiesen werden, dass diese im literarischen Format der Erzählung geschriebenen Storys neben nichtsexualisierten Darstellungen nackter bzw. nur leicht bekleideter Kinder eine Vielzahl von Schilderungen schweren sexuellen Missbrauchs enthalten. Durch die in den Storys bevorzugt dargestellten sexualisierten Anreize und die wiederkehrenden Beschreibungen sexueller Handlungen wurden Kinder von den jeweiligen Verfasser*innen in einer Art und Weise bloßgestellt, die u. E. die Intention des § 184b (StGB) zum Erwerb und zum Besitz kinderpornografischen Inhalts unterläuft. Gemessen an der vielfach verwendeten 10-stufigen COPINE-Skala (Combating Paedophile Information Networks in Europe; Taylor et al. 2001) liegt der Schweregrad des in den untersuchten „Girl-Lover“-Storys dargestellten Kindesmissbrauchs (im Mittel über 8) sogar deutlich höher als bei bislang ausgewerteten bild- und videobasierten Sammlungen von Darstellungen sexualisierten Kindesmissbrauchs (z. B. COPINE-Durchschnittswert 4–6 in: Fortin und Proulx 2019). Zudem enthalten die untersuchten Storys aus dem „Girl-Lover“-Forum vielfach Mutmaßungen darüber, wie Kinder sexuelle Handlungen erleben. Hierbei sind gravierende verzerrte Darstellungen unübersehbar – insbesondere falsche Annahmen über das Interesse an und körperliche Reaktionen bei sexuellen Handlungen von Kindern, über einvernehmliche sexuelle Kontakte und die romantische Verbundenheit. Zudem gibt es Darstellungen, in denen das Kind auf ein jederzeit verfügbares Sexualobjekt für Erwachsene reduziert wird. Das von den Storys ausgehende Risiko wird v. a. darin gesehen, so das Fazit des vorliegenden Beitrages, dass durch ihren Konsum die Fantasie zu sexuellem Kindesmissbrauch angeregt und ein verzerrtes Normalitätsempfinden für ein entsprechendes Verhalten gestärkt werden kann.
Use of random forest for assessing the effect of water quality parameters on the biological status of surface waters
Authors: Szomolányi Orsolya , Clement Adrienne 
Published: July 2023

AbstractThe Water Framework Directive aims to reach good status in European surface waters by 2027. Despite the efforts taken already, the ecological status of surface waters has hardly improved during the last decades. In order to find efficient measures, there is an urgent need to improve our knowledge in understanding the linkage between the anthropogenic factors and the indicators of the ecological status assessment. Due to the complexity of the ecosystems, basic statistical methods (such as linear regression) cannot help in finding relationships between the biological quality elements and the supporting water chemistry parameters. The paper demonstrates that in these cases a machine learning data-driven method can be a promising tool for supporting biological classification. With random forest, the Gini index was used for ranking physico-chemical variables based on their influence on biological elements. Variables that have the biggest Gini index were selected for predicting the biological status of phytoplankton, phytobenthos and macrophytes. Binary classification and predictions were performed on a five-class scale. Predictions tended to be fairly good (errors varied within 8–60%, median 33.3%). A comparative analysis was also made with logistic regression, however, in some cases it led to slightly worse or slightly better predictions. We concluded that due to significant errors, the biological status assessment cannot be replaced completely by model predictions, but the method is sufficient to fill in certain gaps in the data and can help in the planning of biological monitoring systems. The evaluation was performed with Hungarian river and water quality database.
Development of open access tool for automatic use factor calculation using DICOM-RT patient data
Authors: Choi Dong Hyeok , Kim Dong Wook , Park So Hyun , Ahn So Hyun , Ahn Woo Sang , Lee Rena , Kim Jin Sung 
Published: July 2023

AbstractOur study recalculated the use factor of linear accelerators (LINACs) by using an in-house program based on Digital Imaging and Communications in Medicine radiation therapy (DICOM-RT). We considered the impact of advancements and changes in treatment trends, including modality, technology, and radiation dose, on the use factor, which is one of the shielding parameters. In accordance with the methodology described in the NCRP 151 report, we computed the use factor for four linear accelerators (LINACs) across three hospitals. We analyzed the results based on the treatment techniques and treatment sites for three-dimensional conformal radiation therapy (3D-CRT) and intensity modulated radiation therapy or volumetric modulated arc therapy. Our findings revealed that the use factors obtained at 45° and 90° were 14.8% and 13.5% higher than those of the NCRP 151 report. In treatment rooms with a high 3D-CRT ratio, the use factor at a specific angle differed by up to 14.6% relative to the NCRP 151 report value. Our results showed a large difference in the use factor for specific sites such as the breast and spine, so it is recommended that each institution recalculate the use factor using patient’s data.
ON A CONJECTURE FOR A REFINEMENT OF THE SUM OF MINIMAL EXCLUDANTS
Authors: DU JULIA Q. D. , TANG DAZHAO 
Published: July 2023

AbstractIn 2019, Andrews and Newman [‘Partitions and the minimal excludant’, Ann. Comb.23(2) (2019), 249–254] introduced the arithmetic function
$\sigma \textrm {mex}(n)$
, which denotes the sum of minimal excludants over all the partitions of n. Baruah et al. [‘A refinement of a result of Andrews and Newman on the sum of minimal excludants’, Ramanujan J., to appear] showed that the sum of minimal excludants over all the partitions of n is the same as the number of partition pairs of n into distinct parts. They proved three congruences modulo
$4$
and
$8$
for two functions appearing in this refinement and conjectured two further congruences modulo
$8$
and
$16$
. We confirm these two conjectures by using q-series manipulations and modular forms.
Magnetically actuated glaucoma drainage device for regulating intraocular pressure after implantation
Authors: Pereira Inês C. F. , van Mechelen Ralph J. S. , Wyss Hans M. , Pinchuk Leonard , Beckers Henny J. M. , den Toonder Jaap M. J. 
Published: July 2023

AbstractThe key risk factor for glaucoma is increased intraocular pressure (IOP). Glaucoma drainage devices implanted in the eye can reduce IOP and thus stop disease progression. However, most devices currently used in clinical practice are passive and do not allow for postsurgical IOP control, which may result in serious complications such as hypotony (i.e., excessively low IOP). To enable noninvasive IOP control, we demonstrate a novel, miniature glaucoma implant that will enable the repeated adjustment of the hydrodynamic resistance after implantation. This is achieved by integrating a magnetic microvalve containing a micropencil-shaped plug that is moved using an external magnet, thereby opening or closing fluidic channels. The microplug is made from biocompatible poly(styrene-block-isobutylene-block-styrene) (SIBS) containing iron microparticles. The complete implant consists of an SIBS drainage tube and a housing element containing the microvalve and fabricated with hot embossing using femtosecond laser-machined glass molds. Using in vitro and ex vivo microfluidic experiments, we demonstrate that when the microvalve is closed, it can provide sufficient hydrodynamic resistance to overcome hypotony. Valve function is repeatable and stable over time. Due to its small size, our implant is a promising, safe, easy-to-implant, minimally invasive glaucoma surgery device.