bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recent Trends in Advanced Photoinitiators for Vat Photopolymerization 3D Printing
Authors: Bao Yinyin 
Published: May 2022

Abstract3D printing has revolutionized the way of manufacturing with a huge impact on various fields, in particular biomedicine. Vat photopolymerization‐based 3D printing techniques such as stereolithography (SLA) and digital light processing (DLP) attract considerable attention owing to their superior print resolution, relatively high speed, low cost, and flexibility in resin material design. As one key element of the SLA/DLP resin, photoinitiators or photoinitiating systems have experienced significant development in recent years, in parallel with the exploration of 3D printing (macro)monomers. The design of new photoinitiating systems cannot only offer faster 3D printing speed and enable low‐energy visible light fabrication, but also can bring new functions to the 3D printed products and even generate new printing methods in combination with advanced optics. This review evaluates recent trends in the development and application of advanced photoinitiators and photoinitiating systems for vat photopolymerization 3D printing, with a wide range of small molecules, polymers, and nanoassemblies involved. Personal perspectives on the current limitations and future directions are eventually provided.
Neuromodulation for lower urinary tract symptoms in special populations
Authors: Wang Connie N. , Chung Doreen E. 
Published: May 2022

AbstractAimsDiscuss the efficacy, safety, and future directions of neuromodulation in special populations of patients with neurological conditions.MethodsA literature review was done to find meta‐analyses, review articles, studies, and case reports of the use of neuromodulation, either sacral neuromodulation or percutaneous tibial nerve stimulation, in patients with various neurological conditions of interest.ResultsSacral neuromodulation (SNM) and posterior tibial nerve stimulation (PTNS) appear to be safe and effective in special neurological populations of patients with multiple sclerosis (MS), Parkinson's disease (PD), and spinal cord injury (SCI). The majority of publications are smaller retrospective case series. Outcomes appear similar to those seen in nonneurogenic patients but also partly depend on disability progression. Magnetic resonance imaging (MRI) compatibility has helped to improve eligibility for SNM in these special populations.ConclusionsIn a small number of studies, SNM and PTNS appear to be safe and effective in special neurological populations of patients with MS, PD, and SCI. MRI compatibility has helped to improve eligibility for SNM in these special populations. Studies looking at SNM are limited by a small number of subjects, lack of prospective trials, and selection bias. Larger, randomized studies with long‐term follow up are needed to better predict response to SNM and PTNS in these populations
Effects of chronic metformin treatment on training adaptations in men and women with hyperglycemia: A prospective study
Authors: Moreno‐Cabañas Alfonso , Morales‐Palomo Felix , Alvarez‐Jimenez Laura , Ortega Juan Fernando , Mora‐Rodriguez Ricardo 
Published: May 2022

AbstractObjectiveThis study aimed to determine whether chronic metformin use interferes with the improvements in insulin resistance (IR) and cardiorespiratory fitness with aerobic training in people with hyperglycemia and metabolic syndrome (MetS).MethodsA total of 63 middle‐aged (53 [7] years) individuals with MetS and obesity (BMI = 32.8 [4.5] kg/m2) completed 16 weeks of supervised high‐intensity interval training (3 d/wk, 43 min/session). Participants were either taking metformin (EXER+MET; n = 29) or were free of any pharmacological treatment for their MetS factors (EXER; n = 34). Groups were similar in their initial cardiorespiratory fitness (maximal oxygen uptake [VO2MAX]), age, percentage of women, BMI, and MetS factors (z score). The effects of exercise training on IR (homeostatic model assessment of insulin resistance [HOMA‐IR]), MetS z score, VO2MAX, maximal fat oxidation during exercise, and maximal aerobic power output were measured.ResultsFasting insulin and HOMA‐IR decreased similarly in both groups with training (EXER+MET: −4.3% and −10.6%; EXER: −5.3% and −14.5%; p value for time = 0.005). However, metformin use reduced VO2MAX improvements by half (i.e., EXER+MET: 12.7%; EXER: 25.3%; p value for time × group = 0.012). Maximal fat oxidation during exercise increased similarly in both groups (EXER+MET: 20.7%; EXER: 25.3%; p value for time = 0.040). VO2MAX gains were not associated with HOMA‐IR reductions (EXER+MET: r = −0.098; p = 0.580; EXER: r = −0.255; p = 0.182).ConclusionsMetformin use was associated with attenuated VO2MAX improvements but did not affect fasting IR reductions with aerobic training in individuals with hyperglycemia and high cardiovascular risk (i.e., MetS).
Poly(2‐oxazoline)s: a comprehensive overview of polymer structures and their physical properties—an update
Authors: Jana Somdeb , Hoogenboom Richard 
Published: May 2022

AbstractPoly(2‐alkyl/aryl‐2‐oxazoline)s (PAOxs) have gained immense attraction in the polymer research community because of their relative ease of microwave‐assisted synthesis, tailor‐made properties and, most importantly, recent recognition as an upcoming polymer platform for many medical and biological applications (next generation polymer therapeutics/biomaterials). The materials and solution properties of PAOx can be easily tuned by changing the side chain functionalities. This review describes very recent advances in structures and side‐chain‐dependent properties of PAOx that are reported in the literature from 2017 and onwards. The review starts with providing an encyclopaedic overview of newly reported PAOx homopolymers, including their design strategies and limitations. Subsequently, their side‐chain‐dependent thermal and solution properties are discussed. © 2022 Society of Industrial Chemistry.
Reference values for respiratory sinusoidal oscillometry in children aged 3 to 17 years
Authors: Ducharme Francine M. , Smyrnova Anna , Lawson Christiane C. , Miles Laura May 
Published: May 2022

AbstractBackgroundNew oscillometry devices allowing quantification of respiratory function using tidal breathing are commercially available, but reference equations are lacking for the multiethnic Canadian pediatric population.MethodsWe conducted a prospective cross‐sectional study of healthy children carefully selected for absence of asthma, atopy, tobacco smoke, obesity, prematurity, and recent respiratory infection. Triplicate measures were obtained of respiratory system resistance (Rrs) and reactance (Xrs), area under the reactance curve (AX) and resonant frequency (Fres) on four signals, whose testing order was randomized: two signals on the Resmon Pro Full (8 Hz and 5‐11‐19 Hz) and two signals on the tremoflo C‐100 (5–37 Hz and 7–41 Hz). Feasibility was defined as the ability to obtain valid reproducible results. Prediction equations and 95% confidence intervals were derived for whole‐ and within‐breath Rrs and Xrs and for AX and Fres, using linear regression or Generalized Additive Models for Location, Scale and Shape.ResultsOf 306 children randomized, valid and reproducible results on ≥1 signal were obtained in 299 (98%) multiethnic (69% Caucasians: 8% Black: 23% Others) children aged 3–17 years, 91–189 cm tall. Standing height was the strongest predictor with no significant effect of sex, age, body mass index or ethnicity. Significant within‐patient differences were observed between Resmon Pro and tremoflo C‐100 measurements, justifying the derivation of device‐specific reference equations.ConclusionValid reproducible oscillometry measurements are highly feasible in children aged 3 years and older. Device‐specific reference equations, valid for our multiethnic population, are derived.
Examining the mechanistic relationship of APC/CCDH1 and its interphase inhibitor EMI1
Authors: Bolhuis Derek L. , Martinez‐Chacin Raquel C. , Welsh Kaeli A. , Bodrug Tatyana , Cui Liying , Emanuele Michael J. , Brown Nicholas G. 
Published: May 2022

AbstractProper protein destruction by the ubiquitin (Ub)‐proteasome system is vital for a faithful cell cycle. Hence, the activity of Ub ligases is tightly controlled. The Anaphase‐Promoting Complex/Cyclosome (APC/C) is a 1.2 MDa Ub ligase responsible for mitotic progression and G1 maintenance. At the G1/S transition, the APC/C is inhibited by EMI1 to prevent APC/C‐dependent polyubiquitination of cell cycle effectors. EMI1 uses several interaction motifs to block the recruitment of APC/C substrates as well as the APC/C‐associated E2s, UBE2C, and UBE2S. Paradoxically, EMI1 is also an APC/C substrate during G1. Using a comprehensive set of enzyme assays, we determined the context‐dependent involvement of the EMI1 motifs in APC/C‐dependent ubiquitination of EMI1 and other substrates. Furthermore, we demonstrated that an isolated C‐terminal peptide fragment of EMI1 activates APC/C‐dependent substrate priming by UBE2C. Together, these findings reveal the multiple roles of the EMI1 C‐terminus for G1 maintenance and the G1/S transition.
Trunk injection delivery of dsRNA for RNAi‐based pest control in apple trees
Authors: Wise John C , Wise Annabel G , Rakotondravelo Mamy , Vandervoort Christine , Seeve Candace , Fabbri Brad 
Published: May 2022

AbstractBACKGROUNDRNA interference (RNAi) is a promising new approach for controlling insect pests without the use of synthetic pesticides. Trunk injection is a delivery system for woody plants that harnesses the vascular system of the tree to transport materials to the tree canopy. Full size apple trees were injected with double‐stranded RNA (dsRNA), and season‐long leaf samples were taken to measure the vascular mobility and temporal persistence of dsRNA, using quantitative reverse transcription polymerase chain reaction (qRT‐PCR).RESULTSThe qRT‐PCR results revealed that the quantities of dsRNA in the apple leaves of treated trees were significantly greater than those in the leaves of untreated trees for both 2019 and 2020 studies. The peak dsRNA concentration in 2019 was 242 pg/30 mg of leaf tissue, and in 2020 was 16.4 pg/30 mg. The persistence of dsRNA in the apple tree canopy in 2019 was at least 84 days, and in 2020 was at least 141 days.CONCLUSIONSThe highest mean measurement of dsRNA on a single date in 2019 was 242 pg, which is approximately equivalent to 8 ng/1 g leaf tissue. The projection using the highest replicate concentration from the same date is approximately equivalent to 27 ng/1 g leaf tissue, which may be sufficient to be considered biologically active. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
Fault‐tolerant controller design for nonlinear systems with multiple input and state delays based on sliding mode algorithm
Authors: Azmi Hadi , Yazdizadeh Alireza 
Published: May 2022

AbstractIn this article, a novel sliding mode control (SMC) strategy for nonlinear Lipschitz systems with multiple and dissimilar time delays in the states and inputs is proposed. Using linear matrix inequality, a modified integral sliding surface scientifically based on which the innovative SMC approach is developed. Lyapunov–Krasovskii's theory is employed to guarantee asymptotic stability of the closed‐loop system, such that states starting from any arbitrary initial conditions reach the sliding surface in a finite time and stay on it for all subsequent time. It is also proved that the practical effects of the actuator's faults are simultaneously attenuated. An online adaptive tuning law is used to estimate and isolate actuators' possible faults reliably. From the implementation point of view, the controller structure is more straightforward than the most existing recent fault‐tolerant control methods. Simulation results performed on practical nonlinear systems (quadruple tank and industrial continuous stirred tank reactor) verified the outstanding merits of the proposed approach. The operational capabilities of the proposed scheme in the presence of actuators' faults and multiple delays in the states and inputs were also demonstrated.
Observer and output feedback control for nonlinear ordinary differential equation coupled to an under‐actuated transport partial differential equation
Authors: Mathiyalagan Kalidass , Shree Nidhi Ayyapparaj 
Published: May 2022

AbstractIn this article, the under‐actuation problem for a class of first order hyperbolic partial differential equation system coupled to a nonlinear ordinary differential equation is considered. An anticollocated observer design and an appropriate output feedback control is developed based on the backstepping methodology. The stability conditions for the nonlinear coupled system are proposed using the Lyapunov theory and are formulated in terms of the LMI constraints. Further, we have extended the stability results and backstepping control design for the fractional‐order coupled system. The stability conditions and the control law proposed in the work are evaluated considering a numerical simulation.
Effect of Chemical and Thermal Treatment Priority on Physicochemical Properties and Removal of Crystal Violet Dye from Aqueous Solution
Authors: Gökırmak Söğüt Eda 
Published: May 2022

AbstractThe release of pollutants, especially dyes, has been a significant concern as it affects the stability of ecosystems due to poor implementation of waste protocols. In this study, the diatomite samples were characterized by pHpzc, ICP, pore size distribution, XRD, TG‐DTA, BET, SEM and FTIR (before‐after). The adsorption properties of a cationically charged dye, crystal violet (CV), on the diatomite samples were investigated by varying the adsorption parameters with the aim of evaluating the adsorption mechanism. Nonlinear Langmuir, Freundlich, Dubinin‐Radushkevich and Redlich‐Peterson isotherm models, pseudo‐first and pseudo‐second order kinetic models, intraparticle diffusion and Boyd models were evaluated. The adsorption mechanism was explained by the Langmuir isotherm model and the maximum adsorption capacities for CV (at pH 7.0) of DHCl, D800 °C+HCl and DHCl+800 °C were 5.07 mg g−1 and 4.93 mg g−1 and 65.78. mg g−1 at 298 K, respectively. It was also shown that the CV adsorption was reasonable according to the second‐order kinetic model (R2=1). Adsorption occurred via two mechanisms: hydrophobic interactions and the combination of surface hydrogen bonding between the hydroxyl groups on the diatomite surface and the nitrogen atoms of the CV. The results indicated that using DHCl+800 °C would provide a simple, energy‐saving, and cost‐effective approach to removing cationic dyes from an aqueous solution.
Controlling Superhydrophobicity of Aluminum with Hierarchical Micro‐Nanostructure Film for Superb Self‐Cleaning and Anti‐Corrosion
Authors: Wu Shen , Zhang Di , Gong He , Wang Zengyi , Huang Yi , Guo Lide , Hu Chenxi , Yan Huiyu , Kang Jianhai , Han Jianhua , Liu Zhifeng 
Published: May 2022

AbstractIn this study, typical electrodeposition method was proposed to fabricate uniform CuO hierarchical micro‐nanostructure on aluminum (Al) substrate. The superhydrophobic protective film was then fabricated by modifying stearic acid (STA) on this hierarchical CuO film. The static water contact angle reached up to 163° by coating CuO/STA film on Al substrate, and the rolling‐off angle was as low as 3.7°. In addition, CuO/STA coated Al displayed wonderful non‐sticking performance when the free‐falling water droplets contact the surface. As expected, superb anti‐corrosion properties of Al were achieved by coating superhydrophobic CuO/STA film on Al. The corrosion current density of CuO/STA coated Al decreased 2 orders of magnitude comparing with that of pristine Al, and the corrosion protection efficiency of CuO/STA coated Al reached up to 98 % in comparison with pristine Al. Therefore, superhydrophobic CuO/STA film coated Al substrate greatly prolong the working life of Al materials in harsh working condition. The universal method used in this study also provides a potential route for coating superhydrophobic and anti‐corrosion protective film on other metallic substrates or conductive substrates.
A New Benzimidazolium Ion‐Based “Turn Off” Fluorescent Compound for Detection of Fe3+ Ion and Its Application towards Antimicrobial, Antibiofilm and Cell Imaging Study
Authors: Manna Susanta Kumar , Chakraborty Sudipta , Adak Arup Kumar , Samanta Shubhankar 
Published: May 2022

AbstractA novel water soluble fluorescent compound methylated polycyclic benzimidazolium ion 4 based on benzimidazolium ion (85 % yield) for the response of Fe3+ has been demonstrated for the first time due to its excellent photophysical properties. The molecule is highly sensitive and selective towards Fe3+. A dramatic fluorescence switch on‐off‐on has been observed during interchange from Fe3+ to EDTAand the detection limit is 15.8 nM (3σ method) for Fe3+ ions. The compound 4 exhibits excellent antimicrobial and anti‐biofilm activities against E.cloacae and S.aureus. Cell imaging and mammalian cell cytotoxicity were also investigated. The synthesized molecule exhibits selective activity toward gram‐positive bacteria than gram‐negative ones among six different bacterial species.
Recent Research Progress of Silicon‐Based Anode Materials for Lithium‐Ion Batteries
Authors: Du Aimin , Li Hang , Chen Xinwen , Han Yeyang , Zhu Zhongpan , Chu Chuanchuan 
Published: May 2022

AbstractSilicon (Si)‐based materials have become one of the most promising anode materials for lithium‐ion batteries due to their high energy density, but in practice, lithium ions embedded in Si anode materials can lead to a maximum volume expansion of nearly three times, which can cause material chalking and shedding, thus affecting the battery cycle life, while the poor electrical conductivity of Si as a semiconductor material also restricts its further development. A lot of research has been carried out based on these problems. This paper reviews the recent research in three aspects: binder, Si surface structure function, and Si carbon composites, summarizes the research lines, methods, and problems of different Si‐based materials, and gives an outlook on their future research.
Bridging the Interfacial Contact for Improved Stability and Efficiency of Inverted Perovskite Solar Cells
Authors: Huang Yulan , Liu Tanghao , Li Dongyang , Lian Qing , Wang Yun , Wang Guoliang , Mi Guojun , Zhou Yuanyuan , Amini Abbas , Xu Baomin , Tang Zikang , Cheng Chun , Xing Guichuan 
Published: May 2022

AbstractInverted perovskite solar cells (PSCs) have received widespread attention due to their facile fabrication and wide applications. However, their power conversion efficiency (PCE) is reported lower than that of regular PSCs because of the undesirable interfacial contact between perovskite and the hydrophobic hole transport layer (HTL). Here, an interface regulation strategy is proposed to overcome this limitation. A small molecule ([2‐(9H‐carbazol‐9‐yl) ethyl] phosphonic acid, abbreviated as 2P), composed of carbazole and phosphonic acid groups, is inserted between perovskite and HTL. Morphological characterization and theoretical calculation reveal that perovskite bonds stronger on 2P‐modified HTL than on pristine HTL. The improved interfacial contact facilitates hole extraction and retards degradation. Upon the incorporation of 2P, inverted PSCs deliver a high PCE of over 22% with superior stability, keeping 84.6% of initial efficiency after 7200 h storage under an ambient atmosphere with a relative humidity of ≈30–40%. This strategy provides a simple and efficient way to boost the performance of inverted PSCs.
The strain limit state criterion for hollow section joints
Authors: Kožich Matyáš , Wald František , Bu Xiao Ding , Packer Jeffrey A. 
Published: May 2022

AbstractThis paper focuses on discussions about establishing the design resistance of hollow section joints, which have now been ongoing for 30 years. The question arose once physical experiments could be replaced by numerical tests and was temporarily solved by agreement on a displacement limit within the IIW. With the advent of design using finite element (FE) solutions and the use of high‐strength steels, this question is being raised once more.Many design guides and standards with considerable international consensus are now available for the design of welded hollow section joints in onshore and offshore construction. However, they typically cover relatively standardized joint types, geometries and loading cases. In the event of unusual joints it is now common for finite element modelling to be performed, but specific guidance needs to be provided on acceptable FE modelling procedures and the interpretation of the output in order to determine a suitable joint design resistance. With this objective in mind, this paper describes appropriate FE modelling and ultimate limit states that can be used; in particular, a 5 % ultimate strain limit state. Application of these ultimate limit states is demonstrated using validated FE models for RHS‐to‐RHS (rectangular hollow section) X‐joints, with braces in axial compression and tension, and brace plate‐to‐CHS (circular hollow section) joints with braces loaded in axial compression.
The behaviour of anchored extended blind bolts in concrete‐filled tubes
Authors: Tizani Walid , Cabrera Manuela , Mahmood Mohammed , Ninic Jelena , Wang Fangying 
Published: May 2022

AbstractExtended Hollo‐Bolts (EHBs) are blind bolts that have an extended bolt shank ending in an anchor nut. When used with concrete‐filled tubes, the extension and the anchor in the concrete serve to enhance significantly the performance of both connection components: bolts in tension and tube face in bending. The enhancements are a result of confining the concrete, preventing local buckling of the steel tube and allowing the blind bolt to achieve a tensile strength equal to that of standard bolt+nut fasteners. Overall, the use of the EHB results in a moment‐resisting bolted connection to hollow sections which can achieve rigid behaviour under certain configurations. This paper summarizes research work done to date on such connections at the University of Nottingham. This includes experimental, numerical and analytical modelling. The aim of the work is to provide a fundamental understanding of the behaviour of anchored blind bolt connections to concrete‐filled columns, leading to the specification of appropriate design rules that allow the use of such bolted moment‐resisting connections in practice. The work has proposed analytical models for: connection stiffness, column face‐bending strength considering both single and group behaviour of bolt rows, anchored bolts in tension and anchored bolts under combined tension and shear.