bluuebunny/crossref_metadata_2025_split huggingface dataset:
Refugees and religious institutions in a mid‐size Canadian city
Authors: Derksen Murray , Teixeira Carlos 
Published: March 2023

AbstractCanada is a leading refugee‐settlement nation with a highly developed private refugee sponsorship programme involving many community and religious institutions. This study explored how religious institutions affect refugee settlement in Kelowna, a mid‐size city in British Columbia. Kelowna has had a significant increase in refugee sponsorship since the 2015 Syrian crisis, and most private sponsorship has involved churches and the local mosque, in collaboration with government‐funded settlement services and community partners. We collected data through a questionnaire distributed among former refugees and semi‐structured interviews with key informants including clergy, refugee‐sponsorship groups, and service providers. The results reveal that religious institutions help refugees cope with barriers and challenges in Kelowna in three main ways: bridging language barriers between newcomers, service providers, and sponsorship providers; helping newcomers establish new lives in Kelowna and move toward integration; and helping newcomers move away from precarity toward prosperity as they re‐establish themselves and their families.
Weibull stress method to determine the minimum required strength to improve the actual reliability
Authors: Piña‐Monarrez Manuel R. , Baro‐Tijerina Manuel , Ortiz‐Yañez Jesús F. 
Published: March 2023

AbstractThe method to determine the minimum strength that a product must present to improve the product's reliability from its actual R(t) to a desired R(t2) index are given. The method can be performed in both the normal and accelerated scenarios. It can be done by using either complete failure time data or based only on the applied stress range. The addressed minimum strength that corresponds to the R(t2) index is then used in the stress/strength reliability function to determine the corresponding reliability R(t/S,s) index. From the comparison between the R(t2) and R(t/S,s) indices, we found they are similar only for high reliability indices (say R(t) > 0.90). For lower indices their difference is significant, implying more research must be undertaken. In the application a zero accelerated test plan (ZATP) is performed to experimentally demonstrate the improved product presents the desired R(t2) index. Finally, because by applying the proposed method we always can reproduce the product's average, then the formulation to determine the capability Cp and ability Cpk indices of the R(t2) index is also given.
Discovery of Neuraminidase Inhibitors based on 3D‐QSAR, Molecular Docking and MD Simulations
Authors: Yu Xiuyan , Zhao Xuemin , Zhang Qingyu , Dai Chen , Huang Qiuyang , Zhang Lu , Liu Yanan , Shen Yan , Lin Zhihua 
Published: March 2023

AbstractNeuraminidase (NA) plays a critical part within the life cycle of influenza virus, which is a compelling target for anti‐influenza infection. In this study, 3D‐QSAR models were built up utilizing 48 compounds of 5‐benzyl‐4‐thiazolinone derivatives. The CoMFA model (q2=0.759, r2=0.994) and the CoMSIA (q2=0.512, r2=0.972) model showed good reliability and predictability. We docked all compounds to the active site, the amino acids around of the crystallographic ligand ZMR1002, to analyze their binding mode by molecular docking. Subsequently, 10 novel compounds were designed based on the counter maps and molecular docking. Their ADME/T properties and synthesizable properties were evaluated by web server. The results showed that the designed novel compounds had good pharmacokinetic properties and synthesizable properties. Molecular docking results showed that hydrogen bonding, van der Waal and Carbon Hydrogen Bond played important roles in their recognition, and the newly designed compounds had the same binding mode as the template compound 13. MD simulations revealed these residues play key roles for the inhibitory activity of NA in the active site including Glu276, Asp151, Arg371, Arg292, Ser246, Trp178, etc. The above results can provide useful guidance for the discovery of novel NA inhibitors.
Preparation, Characterization and Drug Release of Chitosan Hydrogels Derived From Substituted Salicylaldehyde
Authors: Evcil Murat , Karakaplan Mehmet 
Published: March 2023

AbstractChitosan‐based hydrogels (CSAD1, CSAD2 and CSAD3) have been successfully prepared by dynamic imine reaction between chitosan and varying ratios of 2‐[(2,3‐dihydroxy)‐1‐propoxy]benzaldehyde (SAD) as a linker group respectively. SAD was synthesized from salicylaldehyde and glycidol by atom economy method. FT‐IR and NMR data were used to determine the SAD and hydrogels’ structures. The fabricated hydrogels exhibit a porous structure that the pore size decreased with increasing ratio of SAD group. Hydrogels were swelled in aqueous media but not soluble in both acidic and alkaline medium. The highest swelling capacity was obtained at pH 7 with the order of CSAD1, CSAD2, and CSAD3, respectively. The high thermal behavior of the hydrogels was tested by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Ibuprofen was selected as a model drug for the drug release behaviors of the hydrogels. Release of ibuprofen is influenced by the pore sizes of the hydrogels in order of CSAD1, CSAD2, and CSAD3, respectively.
Novel Red‐Emitting Gd3BW1‐xMoxO9 : Eu3+ Phosphor with High Thermal Stability for Application in UV‐Excited WLEDs and Rapid Visualization of Latent Fingerprints
Authors: Zhang Yang , Ci Yu , Song Jianqiao , Tong Dexin , Song Jian , Zhang Enwei , Wan Hongnan , Ma Zisong 
Published: March 2023

AbstractRare‐earth‐doped inorganic luminescent materials are widely used in white light‐emitting diodes (WLEDs), lasers and forensic sciences due to their outstanding optical characteristics. However, it is still a challenge to obtain such materials with better thermal stability for application in WLEDs on account of their serious thermal quenching properties. In addition, there is still room for improvement in some respects such as higher sensitivity and contrast for application in latent fingerprint development. Herein, a series of novel Gd3BW1‐xMoxO9 : Eu3+ phosphors have been synthesized via high‐temperature solid‐state reaction process. Compared with different Mo6+ ions doping concentrations, Gd3BW0.7Mo0.3O9 : Eu3+ phosphor has optimal photoluminescence properties. Meanwhile, the emission intensity of Gd3BW0.7Mo0.3O9 : Eu3+ phosphor is over 3 times higher than that of commercial red phosphor. More impressive is its excellent resistance against thermal quenching; when heated up to 150 °C, the Gd3BW0.7Mo0.3O9 : Eu3+ phosphor still preserves about 98 % emission intensity of that at room temperature. Furthermore, the latent fingerprints (LFPs) developed by Gd3BW0.7Mo0.3O9 : Eu3+ phosphor exhibited the excellent visualization on various nonporous substrates, and level 1–3 features were well identified with high contrast and sensitivity. The obtained results suggested that the as‐prepared phosphor has great potential for application in both WLEDs and latent fingerprint detection.
Highly Stretchable, Self‐Healable and Self‐Adhesive Double‐Network Eutectogel Based on Gellan Gum and Polymerizable Deep Eutectic Solvent for Strain Sensing
Authors: Gao Yifeng , Zhou Jiacheng , Xu Feifan , Huang Weiming , Ma Xiaofeng , Dou Qiang , Fang Ying , Wu Linlin 
Published: March 2023

AbstractRecently, eutectogels have gained significant attention as promising materials for wearable devices. However, developing eutectogels with integrated stretchability, good toughness, self‐healing, and self‐adhesive properties through non‐covalent scaffold assembly is a major challenge. In this study, a fully physically crosslinked double‐network (DN) eutectogel was fabricated by exploiting the high solubility and gelation of gellan gum in a deep eutectic solvent (DES) to form the first physically crosslinked network and combining it with supramolecular poly (2‐hydroxyethyl acrylate‐choline chloride, HEA‐ChCl). The resulting gel showed high stretchability (1835 %), toughness (7.65 MJ m−3), desirable ionic conductivity (0.41 mS cm−1), adhesion, and high transparency. Assembling the gel into strain sensors allows precise monitoring of human motion (finger, wrist, elbow, and knee). The results of this study suggest that gellan gum/poly (ChCl‐HEA) DN eutectogels have significant potential as highly sensitive and reliable strain sensors for wearable technology applications.
Selective Detection of Copper Ions and Biological Activities of Isoniazid Schiff Bases
Authors: Hemalatha G. Muni , Thirunavukkarasu Kandasamy , Kumar C. Ramesh , Thamim Masthan , Thirumoorthy Krishnan 
Published: March 2023

AbstractFollowing mechanical milling, the condensation reaction of the corresponding heterocyclic aldehydes with Isoniazid yields the Schiff base (E)‐N′‐((1H‐pyrrol‐2‐yl) methylene)isonicotinohydrazide (S1) and (E)‐N′‐(Thiophen‐2‐ylmethylene)isonicotinohydrazide (S2) supported heterocyclic derivatives. The structures of the Schiff bases, S1 and S2 were confirmed by 1H NMR, 13C NMR and IR spectroscopy. Copper ions (Cu2+) were trapped by S1 in DMSO to form the yellow‐coloured complex Cu‐(E)‐N′‐((1H‐pyrrol‐2‐yl)methylene) isonicotinohydrazide (Cu2++S1) with high sensitivity and selectivity. But the same ligand S1 could not be able to capture other metal ions tested for this work (namely, Co2+, Ni2+, Zn2+, Mn2+, Hg2+, Cd2+, Pb2+, Fe2+, and Fe3+) in DMSO. UV‐visible spectroscopic results confirmed the complex formation (Cu2++S1) with copper ions, but not with the other ions. Analysis of non‐covalent interactions (NCI) of ligand S1 with Ni2+, Cu2+ and Zn2+ in DMSO were investigated by density functional theory (DFT). NCI analysis of S1 by Cu2+ ions in DMSO was in good agreement with the experimental results. S2 did not react with any metal ions used in this study to form a complex in DMSO and the same was confirmed by UV‐Visible spectra. Reasonably good antibacterial activity was observed with S1, S2, Cu2++S1 compared to amoxicillin against Gram‐negative bacteria (K. pneumoniae, E. coli), Gram‐positive bacteria (S. aureus, S. pneumoniae), and fungal strain (C. albicans).
Synthesis of 1,2,3‐Triazole‐Linked Hexopyranosylpyrimidine Nucleosides and Their Application as Hepatitis B Viral DNA, HBsAg and HBeAg Suppressants
Authors: Verma Vineet , Singh Ankita , Tyagi Purnima , Kumar Vijay , Prasad Ashok K. 
Published: March 2023

AbstractA series of novel 1,2,3‐triazole‐linked hexopyranosyl mono/double‐headed pyrimidine nucleosides from D‐glucose was synthesized by Cu(I)‐mediated [3+2] cycloaddition reactions (CuAAC) of mono/diazido 2,6‐anhydro‐glucoheptitol and propynylated pyrimidines in good yields. It was observed that all the four synthesized pyrimidine nucleosides were found to be non‐cytotoxic upto 500 μM concentration. The 1,2,3‐triazole‐linked hexopyranosyl mono/double‐headed pyrimidine nucleosides have shown significant suppression of Hepatitis B surface antigen (HBsAg) and Hepatitis B e‐antigen (HBeAg). Amongst all the synthesized compounds, nucleoside dimer 1‐[1‐(6′‐deoxy‐6′‐(4‐(1‐methyluracil)‐1,2,3‐triazol‐1‐yl)‐β‐D‐glucopyranosyl methyl)‐1,2,3‐triazol‐4‐yl]methyl‐uracil was found to be more effective against HBeAg. In the suppression of viral DNA level, all the four synthesized nucleoside analogues were comparable to known drug Entecavir (ETV) with IC50 value in the range of 8.39 μM–18.58 μM and are two folds significant as compared to control.
Synthesis of Highly Photostable Benzoindolenine‐Based Squaraine Dyes by using Aromatic Fluorine Atoms
Authors: Uehashi Yuki , Izawa Seiichiro , Yamada Yuya , Miwa Yohei , Inuzuka Toshiyasu , Kubota Yasuhiro , Hiramoto Masahiro , Funabiki Kazumasa 
Published: March 2023

AbstractWe have elucidated the details of the photodegradation of non‐fluorinated benzoindolenine‐based SQ dyes with low photostability in solution and proposed a hypothesis to improve their photostability. Based on the results, replacing all the hydrogen atoms on the benzoindolenine ring with fluorine atoms or methylation of the oxygen anions of the non‐fluorinated benzoindolenine SQ dye resulted in improvement of photostability. Furthermore, a preliminary investigation of the synthesized SQ dyes for organic photovoltaics revealed that the O‐methylated SQ dye with bulky fluorine‐containing anions provided a much higher Voc than similar benzoindolenine‐based SQ dyes.
Engineering Catalytically Active Sites by Sculpting Artificial Edges on MoS2 Basal Plane for Dinitrogen Reduction at a Low Overpotential
Authors: Rani Renu , Biswas Ashmita , Ahammed Raihan , Purkait Taniya , Kundu Anirban , Sarkar Subhajit , Raturi Mamta , De Sarkar Abir , Dey Ramendra Sundar , Hazra Kiran Shankar 
Published: March 2023

AbstractEngineering catalytically active sites have been a challenge so far and often relies on optimization of synthesis routes, which can at most provide quantitative enhancement of active facets, however, cannot provide control over choosing orientation, geometry and spatial distribution of the active sites. Artificially sculpting catalytically active sites via laser‐etching technique can provide a new prospect in this field and offer a new species of nanocatalyst for achieving superior selectivity and attaining maximum yield via absolute control over defining their location and geometry of every active site at a nanoscale precision. In this work, a controlled protocol of artificial surface engineering is shown by focused laser irradiation on pristine MoS2 flakes, which are confirmed as catalytic sites by electrodeposition of AuNPs. The preferential Au deposited catalytic sites are found to be electrochemically active for nitrogen adsorption and its subsequent reduction due to the S‐vacancies rather than Mo‐vacancy, as advocated by DFT analysis. The catalytic performance of Au‐NR/MoS2 shows a high yield rate of ammonia (11.43 × 10−8 mol s−1 cm−2) at a potential as low as −0.1 V versus RHE and a notable Faradaic efficiency of 13.79% during the electrochemical nitrogen reduction in 0.1 m HCl.
Polarization‐Independent Second Harmonic Generation in 2D Van Der Waals Kagome Nb3SeI7 Crystals
Authors: Fang Yuqiang , Feng Xin , Wang Dong , Ding Yang , Lin Tianquan , Zhai Tianyou , Huang Fuqiang 
Published: March 2023

AbstractSecond harmonic generation (SHG) of 2D crystals has been of great interest due to its advantages of phase‐matching and easy integration into nanophotonic devices. However, the polarization‐dependence character of the SHG signal makes it highly troublesome but necessary to match the laser polarization orientation relative to the crystal, thus achieving the maximum polarized SHG intensity. Here, it is demonstrated a polarization‐independent SHG, for the first time, in the van der Waals Nb3SeI7 crystals with a breathing Kagome lattice. The Nb3 triangular clusters and Janus‐structure of each Nb3SeI7 layer are confirmed by the STEM. Nb3SeI7 flake shows a strong SHG response due to its noncentrosymmetric crystal structure. More interestingly, the SHG signals of Nb3SeI7 are independent of the polarization of the excitation light owing to the in‐plane isotropic arrangement of nonlinear active units. This work provides the first layered nonlinear optical crystal with the polarization‐independent SHG effect, providing new possibilities for nonlinear optics.
Requirement specification extraction and analysis based on propositional projection temporal logic
Authors: Wang Xiaobing , Li Chunyi , Zhao Liang 
Published: March 2023

AbstractAt present, formal methods significantly facilitate the specification and verification of security requirements in requirement engineering, which can reduce requirement errors in the early stage of system development. Extracting formal specifications from security requirements and then evaluating the quality of the requirements are regarded as a promising solution to ensure software quality. Propositional projection temporal logic (PPTL) with a strong mathematical basis and full regular expressiveness is a suitable language for formal specifications. Inspired by natural language processing and text mining techniques, this paper designs and implements a tool, namely, NL2PPTL, to generate formal coarse‐grained and fine‐grained specifications in terms of PPTL formulas automatically. In specific, the grammatical production rules are defined to construct the syntax tree, and then, the formula is obtained by post‐order traversal of the tree. The satisfiability of the PPTL specifications can be checked utilizing PPTLSAT. In addition, the state transformation model is constructed from fine‐grained specifications, so as to discover scope conflicts and verify the security properties of the requirement case.
Active Films and Coatings Based on Propolis Extract and Chitosan: Physicochemical Characterization and Potential Application in Refrigerated Shrimps (Litopenaeus vannamei)
Authors: Isfran Douglas , Chacon Wilson Daniel Caicedo , Alves Maria Jaízia dos Santos , Monteiro Alcilene Rodrigues , Ayala Valencia Germán 
Published: March 2023

AbstractMelanosis is a bio‐chemical reaction that reduces the acceptability of refrigerated shrimps. The current research aims to produce and characterize chitosan‐based coatings added of propolis extract (PE), as well as to investigate the potential application of these materials to control the melanosis of refrigerated shrimps during storage (9 days). Shrimps are coated with chitosan solutions content different PE concentrations (0%, 5%, 10%, and 20%). Uncoated shrimps and shrimps coated with sodium metabisulfite are also investigated. The incorporation of PE modifies the crystalline structure of chitosan, reducing the water contact angle, and thermal stability of films. Shrimps coated with chitosan‐based solutions containing 20% of PE display lower dark points in the cephalothorax and joints region, as well as better weight retention during storage. These results suggest that chitosan‐based coatings containing PE can be an eco‐friendly alternative to substitute sodium metabisulfite in refrigerated shrimps.
Visible Light‐Induced Metal‐Free Fluoroalkylations
Authors: Hyeon Ka Cheol , Kim Seoyeon , Jin Cho Eun 
Published: March 2023

AbstractFluoroalkylation is a crucial synthetic process that enables the modification of molecules with fluoroalkyl groups, which can enhance the properties of compounds and have potential applications in medicine and materials science. The utilization of visible light‐induced, metal‐free methods is of particular importance as it provides an environmentally friendly alternative to traditional methods and eliminates the potential risks associated with metal‐catalyst toxicity. This Account describes our studies on visible light‐induced, metal‐free fluoroalkylation processes, which include the use of organic photocatalysts or EDA complexes. We have utilized organophotocatalysts such as Nile red, tri(9‐anthryl)borane, and an indole‐based tetracyclic complex, as well as catalyst‐free EDA chemistry through photoactive halogen bond formation or an unconventional transient ternary complex formation with nucleophilic fluoroalkyl source. A variety of π‐systems including arenes/heteroarenes, alkenes, and alkynes have been successfully fluoroalkylated under the developed reaction conditions.
Infected parotid sialocele treated by vegetal foreign body removal in a dog
Authors: Porsmoguer Charles , Picavet Pierre P. , Etienne Anne‐Laure , Grauwels Magda , Claeys Stéphanie 
Published: March 2023

AbstractAn 11‐month‐old French bulldog was presented for a recurrent fluid‐filled mass located ventral to the right pinna. An infected parotid sialocele was diagnosed using ultrasonography, computed tomographic sialography and cytological analysis of the fluid. The dog also had a superficial corneal ulcer because of iatrogenic right facial nerve paralysis secondary to previous attempts by the referring veterinarian to excise the mass surgically. Vegetal foreign bodies (grass awns barbs) were found at the entrance to the right parotid canal and were removed with iris forceps. Bacteriology was positive for Streptococcus canis. Conservative management was initiated after grass awn removal, and the dog was discharged with oral antibiotics (amoxicillin‐clavulate orally), ophthalmic antibiotic ointment and artificial tears. Clinical signs related to parotid sialocele resolved, and permanent partial temporal tarsorrhaphy was performed 2 months later. At the 3‐year follow‐up, the dog had no signs of recurrence of the parotid sialocele, but facial paralysis was still present.
Improved thermal conductivity of hydrodynamic third‐grade ferrofluid using nanolayer concept: A PTSC application
Authors: Nabwey Hossam A. , Minnam Reddy Vasudeva Reddy , MV Govindaraju , N Sandeep 
Published: March 2023

AbstractThe current study numerically investigates the heat diffusion in the cylindrical film flow of third‐grade ferroliquid. The nanolayer concept is used to analyze the effective thermal conductivity of ferrofluid in different shapes of nanoparticles. Ethylene glycol (EG)‐based cobalt (Co) nano‐sized particles are measured. Using hydrodynamics, Darcy‐Forchheimer, Ohmic heating, and nonlinear radiation effects, an exact model was developed and resolved through the bvp5c Matlab scheme. The computational outcomes are elucidated through pictorial and tabular results. The cylindrical‐shaped nanoparticles are reported to have more advanced heat relocation than the spherical‐shaped nanoparticles. This proved that the nanolayer formed with the cylindrical‐shaped nanoparticles' effectivity boosts the base liquid thermal conductivity. So, to enlarge the PTSC heat spread rate, suspension of Co‐cylindrical nanoparticles in base liquid with third‐grade rheological behavior is very helpful.
Texture-zero patterns of lepton mass matrices from modular symmetry
Authors: Ding Gui-Jun , Joaquim F. R. , Lu Jun-Nan 
Published: March 2023

Abstract
Texture zeros in fermion mass matrices have been widely considered in tackling the Standard Model flavour puzzle. In this work, we perform a systematic analysis of texture zeros in lepton mass matrices in the framework of $$ {\Gamma}_3^{\prime}\cong {T}^{\prime } $$

Γ
3
′

≅

T
′

modular symmetry. Assuming that the lepton fields transform as irreducible representations of T′, we obtain all possible texture-zero patterns for both charged-lepton and neutrino mass matrices which can be achieved from T′ modular symmetry. We provide representative models for the phenomenologically-viable textures which can accommodate the experimental data. The predictions for lepton mixing angles, CP-violating phases, light neutrino masses and effective neutrino mass relevant for neutrinoless double beta decay, are discussed. We find that the minimal viable lepton model depends on only 7 real free parameters including the modulus τ (the corresponding charged-lepton mass matrix contains 4 vanishing entries, and the neutrino mass matrix has 1 texture zero). Finally, we study in detail three benchmark models, one for each neutrino mass generation mechanism considered (Dirac, Majorana via Weinberg operator and Majorana via minimal type-I seesaw mechanism).
Octagonal Layouts: Project Genesis of the Cathedral of Valencia
Authors: González Concepción López , García-Valldecabres Jorge Luis , Meseguer Luis Cortés 
Published: March 2023

AbstractOctagonal layouts are widely used in medieval architecture. In Spain, the Cathedral of Valencia is an exceptional example because of its compositional arrangement and early date of construction. The study of this cathedral serves not only to propose the regulatory layout and geometric process to develop the transept, the ambulatory, and the dome but allows the empirical establishment of the complex properties and characteristics of the octagon. By surveying the planes with a 3D laser scanner, the graphic procedures used in the original design of the temple were verified, as were the geometric theories pertaining to the figure of the octagon in architecture, set by the golden ratio.