bluuebunny/crossref_metadata_2025_split huggingface dataset:
Phase transition in monodisperse granular materials: How to model it by using a strain hardening visco‐elastic‐plastic constitutive relationship
Authors: Marveggio Pietro , Redaelli Irene , di Prisco Claudio 
Published: July 2022

AbstractDuring heating (loading characterised by a progressive increase in strain rate) and cooling (loading characterised by a progressive decrease in strain rate) numerical tests, performed by using Discrete Element codes, granular materials experience phase transition phenomena, named in this paper ‘dry liquefaction’ (when from solid the material starts behaving like a fluid) and ‘dry resolidification’ (freezing, when the material from fluid starts behaving like a solid). The aim of this paper consists in reproducing phase transition phenomena by using a strain hardening visco‐elastic‐plastic model based on the critical state concept and kinetic theories of granular gases. The authors demonstrate that crucial is the role of isotropic softening/hardening, which describes the size of the elastic domain and the capability of the solid skeleton of storing elastic energy according to permanent force chains. The main ingredients of the model are: (i) the additivity of quasi‐static and collisional stresses, (ii) the energy balance equation governing the evolution of the granular temperature, interpreted this latter as an additional internal variable for the system for the collisional contribution, (iii) the mixed isotropic and kinematic hardening characterising the quasi‐static incremental constitutive relationship. The model has been both calibrated and validated on Discrete Element Method (DEM) numerical results, obtained by testing dry assemblies of monodisperse spheres under true triaxial loading conditions.
Progressive evaluation of buckling landslide stability considering strain softening behavior of the slip zone
Authors: Zou Zongxing , Mu Rui , Luo Yinfeng , Guo Bing , Tan Lei , Su Aijun , Tang Chunyan 
Published: July 2022

AbstractCurrent stability evaluation methods are unable to consider the progressive developing process of the bulking landslide and lack progressive evaluation method. Based on the strain‐softening constitutive model and energy conservation theory, this study proposes a progressive evaluation method for buckling landslide stability considering the shear mechanical characteristics of the slip zone with large displacement, enabling progressive evaluation of landslide stability as the buckling landslide deforms. Proposed method was validated based on the good agreement between evaluation result and observation from the critical displacement of Baiyangou landslide in the Three Gorges Reservoir area in China, as a case study. The results also suggest a displacement distribution along the slip zone presenting a two‐step growth feature from the front edge to rear edge; in contrast, the shear strength distribution presents a two‐step decline feature. In addition, the parameter sensitivity analysis of slip zone and slide mass of buckling landslide shows that buckling landslide stability is directly proportional to the thickness of slip zone and elastic modulus of slide mass and inversely proportional to the length of slide mass.
An isogeometric finite element formulation for boundary and shell viscoelasticity based on a multiplicative surface deformation split
Authors: Paul Karsten , Sauer Roger A. 
Published: July 2022

AbstractThis work presents a numerical formulation to model isotropic viscoelastic material behavior for membranes and thin shells. The surface and the shell theory are formulated within a curvilinear coordinate system, which allows the representation of general surfaces and deformations. The kinematics follow from Kirchhoff–Love theory and the discretization makes use of isogeometric shape functions. A multiplicative split of the surface deformation gradient is employed, such that an intermediate surface configuration is introduced. The surface metric and curvature of this intermediate configuration follow from the solution of nonlinear evolution laws—ordinary differential equations—that stem from a generalized viscoelastic solid model. The evolution laws are integrated numerically with the implicit Euler scheme and linearized within the Newton–Raphson scheme of the nonlinear finite element framework. The implementation of membrane and bending viscosity is verified with the help of analytical solutions and shows ideal convergence behavior. The chosen numerical examples capture large deformations and typical viscoelasticity behavior, such as creep, relaxation, and strain rate dependence. It is also shown that the proposed formulation can be straightforwardly applied to model boundary viscoelasticity of 3D bodies.
Antidepressants for social anxiety disorder: A systematic review and meta‐analysis
Authors: Mitsui Nobuyuki , Fujii Yutaka , Asakura Satoshi , Imai Hissei , Yamada Hisashi , Yoshinaga Naoki , Kanai Yoshihiro , Inoue Takeshi , Shimizu Eiji 
Published: July 2022

AbstractAimThis systematic review is aimed to update and reintegrate the pharmacotherapy of social anxiety disorder (SAD), including the Japanese medical database.MethodsWe conducted a systematic review and meta‐analysis of pharmacotherapy of SAD according to the Medical Information Distribution Service. We used data from a most recent systematic review, and updated search were conducted using MEDLINE, PubMed, CENTRAL, ICTRP, and ICHUSHI from August 1st, 2017 to January 31st, 2022. The outcome were response rates assessed by Clinical Global Impressions Improvement, efficacy assessed by the Liebowitz Social Anxiety Scale (LSAS), and dropout rates. We performed a random effect of meta‐analysis to obtain the differences in each outcome between active medication and placebo. We used RevMan version 5.3 for analyses.ResultsWe identified 5 studies through update search and performed meta‐analysis for 33 studies on selective serotonin reuptake inhibitor (SSRI) and 6 studies on serotonin noradrenalin reuptake inhibitor (SNRI). The response rate (RR = 1.62) and the LSAS score reduction (mean difference = −9.65) of SSRI, and the response rate (RR = 1.57) and the LSAS score reduction (mean difference = −11.72) of SNRI were significantly different from placebo. The dropout rates of SSRI or SNRI were not significant. The response rates of SSRIs in both Japanese studies (RR = 1.44) and countries other than Japan (RR = 1.67) were significant. Most findings were based on low quality of evidence.ConclusionSSRIs are valid option for pharmacotherapy of SAD including Japanese patients. SNRIs are another effective option. However, the results should be interpreted cautiously due to several risk of bias.
There's an app for that: Teaching entomology in the online age
Authors: Mech Angela , Rosenberger Derek , Fanning Philip , Riggins John J. , Aukema Brian , Hartshorn Jess 
Published: July 2022

AbstractEffective educational tools are needed to facilitate learning of organismal and ecological sciences in the virtual setting. For entomology laboratory classes, physically collecting insects and curating them in formal collections encompass the traditional learning and assessment tools to introduce students to the natural world and increase their curiosity and interest in insects. Virtual learning, however, creates issues with this modality. Using pre‐ and post‐surveys across five universities based on a new lab activity, we sought to determine whether using a digital platform named iNaturalist stimulated observation, curiosity, and interest in insects. iNaturalist positively affected each measure, most strikingly among biology and zoology majors who increased observation by 15%, curiosity in identification by 39%, and interest by 16%. Increases in observation and curiosity in insects were positively correlated with increases in interest in entomology as a whole. Our findings suggest that virtual tools such as iNaturalist may promote positive course outcomes.
Changes in the expression of meteorin‐like (METRNL), irisin (FNDC5), and uncoupling proteins (UCPs) after bariatric surgery
Authors: Jamal Mohammad H. , AlOtaibi Fatemah , Dsouza Carol , Al‐Sabah Suleiman , Al‐Khaledi Ghanim , Al‐Ali Waleed , Ali Hamad , Cherian Preethi , Al‐Khairi Irina , Devarajan Sriraman , Abu‐Farha Mohamed , Al‐Mulla Fahd , Abubaker Jehad 
Published: July 2022

AbtractObjectiveBariatric surgery is currently the most effective treatment for severe obesity. This study aims to investigate the changes in expression levels of meteorin‐like protein (METRNL), irisin (FNDC5), and uncoupling proteins (UCP) 1/2/3 following bariatric surgery to understand their involvement in enhancing metabolism after surgery.MethodA total of 40 participants were enrolled in this interventional study, 20 with obesity BMI ≥ 35 kg/m2 and 20 with BMI ≤ 25 kg/m2. Bariatric surgery (laparoscopic sleeve gastrectomy and Roux‐en‐Y gastric bypass) was performed. The levels of various molecules of interest were analyzed before and after surgery.ResultsGene expression analysis revealed significantly higher levels of METRNL, UCP1, and UCP3 in individuals with obesity when compared with healthy individuals before surgery (p < 0.05). Gene expression levels of METRNL and UCP2 showed a significant increase after bariatric surgery (p < 0.05). METRNL plasma level was significantly higher in individuals with obesity before surgery (mean [SEM], 55,222.6 [1,421.1] pg/mL, p = 0.0319), as well as at 6 and 12 months (57,537.3 [1,303.9] pg/mL, p = 0.0005; 59,334.9 [1,214.3] pg/mL, p < 0.0001) after surgery.ConclusionThe changes in the levels of various molecules of interest support their possible involvement in the inflammatory and thermogenic responses following bariatric surgery.
Investigation of thermal property of plasma‐polymerized fluorocarbon thin films
Authors: Cho Eunmi , Song Sehwan , Kim Mac , Park Jin‐Seong , Park Sungkyun , Lee Sang‐Jin 
Published: July 2022

AbstractThe physical property changes in the plasma‐polymerized fluorocarbon (PPFC) thin films near the melting temperature (Tm) were investigated through chemical structure analysis. The PPFC thin films, produced by semi‐crystalline polytetrafluoroethylene (PTFE)‐based polymer sputtering target, form amorphous polymers with outstanding properties, such as high water repellency and high optical transmittance, electrical insulation, and chemical resistance. Interestingly, in‐situ X‐ray photoelectron spectroscopy analysis revealed that the PPFC thin films maintained their physical properties at temperatures above the Tm in vacuum and exhibited properties similar to those of bulk PTFE while maintaining amorphous structure. Therefore, this thin film can be applied to various devices and surface coatings manufactured at high temperatures.
Registration of two peanut recombinant inbred lines (TifGP‐5 and TifGP‐6) resistant to late leaf spot disease
Authors: Chu Ye , Clevenger Josh P. , Holbrook C. Corley , Isleib Thomas G. , Ozias‐Akins Peggy 
Published: July 2022

AbstractLate leaf spot (LLS) disease is an omnipresent peanut (Arachis hypogaea L.) foliar disease that causes significant yield loss. Integrating host resistance to reduce yield loss and management costs from this disease is highly desirable. In addition to disease resistance, market demand for high‐oleic peanut is on the rise due to its improved oxidative stability and health benefits. Previously, a recombinant inbred population from Florida‐07 × GP‐NC WS 16 (crossing number C1801) segregating for both LLS resistance and high oleic traits was used to perform genetic mapping for LLS resistance by quantitative trait loci (QTL)‐seq analysis. Three QTL regions on chromosomes B03, A05, and B05 were identified, and Kompetitive allele‐specific polymerase chain reaction markers flanking these regions were validated through a field test on genotypically selected sister lines. Two recombinant inbred lines, TifGP‐5 (Reg. no. GP‐246, PI 700330) and TifGP‐6 (Reg. no. GP‐247, PI 700331), with top levels of field resistance to LLS, were selected from this population for release. Both lines possess the resistance alleles of all the genetic markers. One line has high oleic acid content, and the other is normal oleic. Releasing these recombinant inbred lines packaged with molecular markers provides the peanut‐breeding community with genetic resources that can be utilized through marker‐assisted breeding.
Pharmacological effects of Eleutherococcus senticosus on the neurological disorders
Authors: Li Xi‐Tao , Zhou Jie‐Chun , Zhou Yu , Ren Ying‐Shan , Huang Yu‐Hong , Wang Shu‐Mei , Tan Long , Yang Zhi‐You , Ge Yue‐Wei 
Published: July 2022

AbstractEleutherococcus senticosus is a medicinal plant widely used in traditional medicine and edible remedies with effects on anti‐fatigue, sleep improvement, and memory enhancement. Recently, the application of E. senticosus to neurological disorders has been a focus. However, its overall pharmacological effect on neural diseases and relevant mechanisms are needed in an in‐depth summary. In this review, the traditional uses and the therapeutic effect of E. senticosus on the treatment of fatigue, depression, Alzheimer’s disease, Parkinson’s disease, and cerebral ischemia were summarized. In addition, the underlying mechanisms involved in the anti‐oxidative damage, anti‐inflammation, neurotransmitter modulation, improvement of neuronal growth, and anti‐apoptosis were discussed. This review will accelerate the understanding of the neuroprotective effects brought from the E. senticosus, and impetus its development as a phytotherapy agent against neurological disorders.
An Efficient Magnesium Phyllosilicate‐Nano Palladium Hybrid Catalyst for the Selective Oxidation of Organosilanes
Authors: Santhini Pulikkal Veettil , Das Gourab , Mole Julie , Kumar Abhijith S. , Vedhanarayanan Balaraman , Praveen Vakayil K. , John Jubi 
Published: July 2022

AbstractThe introduction of heterogeneous catalysis has resulted in transforming conventional organic transformations into processes with a high atom economy. A hybrid catalyst based on palladium nanoparticles supported on organofunctionalized magnesium phyllosilicate (PdNP@OMS) has been developed and utilized for the dehydrogenative coupling of organosilanes. The characterization of the hybrid catalyst by using spectroscopy and microscopy techniques confirmed the presence of well‐dispersed, spherically shaped palladium nanoparticles over the entire support. The heterogeneous catalyst was found to applicable to the oxidation of a variety of silanes with excellent yield up to 99 % in a short time. The catalyst was found to be stable and have exhibited impressive turnover frequency (TOF) values. The robustness of the PdNP@OMS catalyst under the reaction conditions was established by recycling experiments upto 5 cycles. Furthermore, the conversion of silane to silanol was found to be 98 % atom economic, highly selective and efficacious for gram‐scale reactions.
An Unprecedented Valorisation of Marble Slurry Waste Material as Solid Support for Palladium‐Catalysed Heck and Suzuki Reactions
Authors: Chopra Jaishri , Dayma Varsha , Mandal Astam , Baroliya Prabhat K. , Maiti Debabrata 
Published: July 2022

AbstractMarble slurry is a waste product from marble processing industries, which can facilitate cost‐effective, and environmentally sustainable catalyst support for metal catalyzed organic transformations, it can offer a waste‐to‐wealth concept. In this context, we developed a reusable MS supported ligand‐free palladium nanoparticles catalyst for Mizoroki‐Heck and Suzuki‐Miyaura coupling reactions. The prepared catalyst is found to be very efficient and facile with maximum TON 4.13×102 and TOF 102 h−1 with good to excellent yields in aerobic conditions. The catalyst was recuperated after each reaction and reused upto five catalytic cycles affording quite satisfactory stability.
Conducting Polymer‐Based Micro‐ and Nano‐batteries for Biomedical Applications: A Short Review
Authors: Singh Neetika , Kumar Amit , Riaz Ufana 
Published: July 2022

AbstractCurrent advancements in nanotechnology focus on miniaturization of electronic devices to provide power on demand. The Li+ ion based micro/nano‐batteries are excellent candidates for this purpose. However, the manufacture a single nano‐battery with assured reliable performance is one of the greatest challenges faced in the fabrication of Li+ ion based nano‐batteries. Nanostructured conducting polymers (NCPs) have shown promise in many frontier areas such as biosensors, microelectronics, polymer batteries, actuators, energy conversion etc. The combination of NCPs with inorganic compounds for designing nano‐batteries has been the subject of extensive investigation due to synergistic interaction of NCPs with inorganic compounds that provides remarkable improvement in electrode lifetime, rate capabilities, and voltage as well as mechanical and thermal stability. The present mini review deals with the fabrication of nano‐batteries using polypyrrole (PPy), polyaniline (PANI), and polythiophene (PTh) which could be utilized for various biomedical applications. The design and development of nano‐batteries using NCPs is discussed along with their applications in implantable devices, pace makers, smart sensing devices etc.
Total Synthesis of AGI‐7 and Sescandelin from Enol Esters
Authors: Mishra Priyadarshini , Panda Niranjan 
Published: July 2022

AbstractA silver salt‐mediated aerobic approach to access 4‐acetyl 3‐unsubstituted isocoumarins from the reaction of ortho‐iodobenzoic acid and enol ester in the presence of a base has been presented. The reaction proceeds through the base mediated initial cleavage of the enol ester followed silver‐mediated C‐arylation reaction. Intramolecular annulation of the resulting intermediate followed by dehydration produces the 4‐acyl isocoumarins. Selective demethylation of the 4‐acylated isocoumarin affords biologically potent AGI‐7, while selective reduction followed by demethylation enabled the sescandelin in good yield.
Cyclopeptides Natural Products as Herbicides and Inhibitors of Cyanobacteria: Synthesis of Versicotides E and F
Authors: Posada Laura , Rey Luciana , Villalba Juana , Colombo Sol , Aubriot Luis , Badagian Natalia , Brena Beatriz , Serra Gloria 
Published: July 2022

AbstractThe first total synthesis of cyclopeptides versicotide E and F, natural products produced by marine fungus Aspergillus versicolor LZD‐14‐1, was achieved in good yield by solid phase peptide synthesis (SPPS) of their linear precursors and solution phase cyclization. All the versicotides A−F were evaluated as herbicides and inhibitors of cyanobacterial growth. Versicotides A, B, D, E and F showed a significant inhibition of Rye grass seed's radicle growth at a concentration of 67 μg/mL. Versicotides A, B and D also inhibited seed germination and leaf development. On the other hand, Versicotides D and F caused a relevant reduction on Microcystis aeruginosa population when cultures on exponential growth were incubated with 40 μg/mL solutions of these compounds. Evaluation of the concentration of microcystins after these treatments showed that versicotide D inhibited the production of microcystins in a comparable extent to the positive control, colistine. These results indicate versicotides, with versicotides D and F as top hits, could be considered as lead candidates in the development of bioherbicides able to mitigate the environmental impact that the evolution of agriculture has had on water quality.
Universal and Stable Slippery Coatings: Chemical Combination Induced Adhesive‐Lubricant Cooperation
Authors: Wang Dagui , Chen Yajie , Huang Yu , Bai Hao , Tan Yao , Gao Pengcheng , Deng Xu , Xia Fan , Jiang Lei 
Published: July 2022

AbstractLiquid lubricant of low affinity makes slippery coatings widely used in lubricating, anti‐biofouling, anti‐icing, fluid guiding, and drag reduction. Two critical challenges, however, remain in the practical application of slippery coatings consisting of liquid lubricants: (1) universality regardless of roughness and chemical composition of substrates, (2) stability of surface lubricity against evaporation. Herein, a chemical method is reported to create a universal and stable slippery lubricant‐adhesive cooperated coating (SLACC) through acid catalyzed dehydration reaction between the phenolic hydroxyl of polydopamine (PDA), with universal (for challenge‐1) and strong (for challenge‐2) adhesion properties, and liquid‐like polydimethylsiloxane (PDMS), with lubricant properties. Through overlying PDMS on PDA, a spatial gradient interpenetration of chemical combined PDA and PDMS leaving lubricant PDMS at the outermost of coating is achieved. This structure contributes to the following performances of SLACC: nearly universality suitable for 100 different abiotic or biotic substrates and stability sustainable for long‐term usages, UV radiating, refrigerating, hot air drying, freeze drying, knife scratch and abrasion. This proposed strategy is envisioned anti‐fouling from plane to tube and exhibits drag reduction in confined space.
In Situ Electrosynthesis of MAX‐Derived Electrocatalysts for Superior Hydrogen Evolution Reaction
Authors: Sheng Minhao , Bin Xiaoqing , Yang Yawei , Tang Yi , Que Wenxiu 
Published: July 2022

AbstractMAX phases are frequently dominated as precursors for the preparation of the star material MXene, but less eye‐dazzling by their own potential applications. In this work, the electrocatalytic hydrogen evolution reaction (HER) activity of MAX phase is investigated. The MAX‐derived electrocatalysts are prepared by a two‐step in situ electrosynthesis process, an electrochemical etching step followed by an electrochemical deposition step. First, a Mo2TiAlC2 MAX phase is electrochemically etched in 0.5 m H2SO4 electrolyte. Just several hours, electrochemical dealloy etching of Mo2TiAlC2 MAX powders by applying anode current can acquire a moderated HER performance, outperforming most of reported pure MXene. It is speculated that in situ superficially architecting endogenous MAX/amorphous carbide (MAC) improves its intrinsic catalytic activity. Subsequently, highly active metallic Pt nanoparticles immobilized on MAC (MAC@Pt) shows a transcendental overpotential of 40 mV versus RHE in 0.5 m H2SO4 and 79 mV in 1.0 m KOH at the current density of 10 mA cm−2 without iR correction. Ultrahigh mass activity of MAC@Pt (1.5 A mgpt−1) at 100 mV overpotential is also achieved, 29‐folds than those of commercial PtC catalysts.
Methods for improving the implementation of advanced encryption standard hardware accelerator on field programmable gate array‐A survey
Authors: Renugadevi N. , Thangallapally Shirisha , Vemula Sai Charan , Julakanti Stheya , Bhatnagar Somya 
Published: July 2022

AbstractWith the majority of users migrating to a cloud computing platform, the responsibility for data security has increased considerably. As data with various levels of sensitivity moves out of the confines of the system firewall, there is no control over where it resides; it depends on the cloud server being used. This makes the use of secured cryptographic algorithms necessary to improve data security and maintain the confidentiality of data. The encryption algorithm used most extensively today is the Advanced Encryption Standard (AES). Hardware acceleration with Field Programmable Gate Array can improve the performance of AES. This study examines various approaches for improving data encryption methods that can be utilized as hardware accelerators to improve the fundamental AES cipher. Some research publications suggest ways to boost throughput while others advise ways to save area and power. Many subsequent developments have also used other cryptographic methods such as RSA and ECC to improve key management security. This study examines the outcomes of multiple ways for metrics including throughput, area, power, and data security, and explains some of the best implementation solutions for each metric individually.