bluuebunny/crossref_metadata_2025_split huggingface dataset:
Electropolymerized 1D Growth Coordination Polymer for Hybrid Electrochromic Aqueous Zinc Battery
Authors: Poh Wei Church , Gong Xuefei , Yu Fei , Lee Pooi See 
Published: September 2021

AbstractOrganic materials are always viewed as promising electrochromic (EC) materials due to their synthetic versatility, color tunability, ready processability, and derivability from sustainable feedstocks. Most organic materials, however, are prone to undesirable redox side reactions in the presence of oxygen and water. As such, redox–active organic layers are often used in tandem with organic electrolytes to preserve their electrochemical stability. With the growing interest in electronics that are environmentally sustainable and biologically safe, developing aqueous‐compatible organic materials is gaining growing interest. Herein, a rationally designed iron terpyridyl coordination polymer (CP) is prepared by controlled electropolymerization for realization of aqueous compatible EC and energy storage applications. Detailed analysis is established, showing that the CP grows in a 1D fashion and exhibits a predominant capacitive behavior which is reflected from its rapid charge–transfer kinetics. Taking this as an advantage, an integrated hybrid electrochromic zinc battery device is demonstrated with high color contrast, fast response time, and good endurance.
Butyrylcholinesterase Responsive Supramolecular Prodrug with Targeted Near‐infrared Cellular Imaging Property
Authors: Sun Yonghui , Chen Yong , Dai Xianyin , Liu Yu 
Published: September 2021

AbstractAn enzyme responsive supramolecular prodrug with near‐infrared targeted cell imaging property is constructed from organic dye (4‐(3‐(benzo[d]thiazol‐2‐yl)‐2‐hydroxy‐5‐methylstyryl)‐1‐methylpyridin‐1‐ium) (G), anti‐cancer drug chlorambucil (Cbl−G), water‐soluble cucurbit[7]uril (CB[7]) and biocompatible hyaluronic acid (HA). It is very interesting that CB[7] can not only associate Cbl−G to form supramolecular nanofibers, but also further assemble with targeter HA to form supramolecular nanoparticles with a diameter of about 200 nm. The loading efficiency of Cbl−G in the assembly is calculated to be as high as 98.2%. Cell experiments using HeLa and A549 cancer cells indicated that the prodrug nanoparticles are easily internalized into cancer cells via receptor‐mediated endocytosis, and disassembled under the action of butyrylcholinesterase by cutting the ester bond of prodrug, exhibiting a controlled drug release behavior as well as a simultaneous near‐infrared (NIR) fluorscence imaging in cancer cells. The present research might provide a feasible strategy for in situ monitoring drug delivery and NIR cellular imaging.
Metal‐free Nucleophilic α‐Azidation of α‐Halohydroxamates with Azidotrimethylsilane
Authors: Lee Chang Yoon , Kim Sung‐Gon 
Published: September 2021

AbstractA mild and metal‐free synthetic method for α‐azido carbonyl derivatives via the nucleophilic α‐azidation of α‐halohydroxamates have been established. The reactions of trimethylsilyl azide with various α‐mono‐ and disubstituted azaoxyallyl cations, generated in situ from α‐halohydroxamates, afforded a wide range of hindered mono‐ and dialkyl α‐azido carbonyl derivatives in good yields in the presence of tetrabutylammonium fluoride as a catalyst.
A Systematic Study of the Effects of Complex Structure on Aryl Iodide Oxidative Addition at Bipyridyl‐Ligated Gold(I) Centers
Authors: Cadge Jamie A. , Bower John F. , Russell Christopher A. 
Published: September 2021

AbstractA combined theoretical and experimental approach has been used to study the unusual mechanism of oxidative addition of aryl iodides to [bipyAu(C2H4)]+ complexes. The modular nature of this system allowed a systematic assessment of the effects of complex structure. Computational comparisons between cationic gold and the isolobal (neutral) Pd0 and Pt0 complexes revealed similar mechanistic features, but with oxidative addition being significantly favored for the group 10 metals. Further differences between Au and Pd were seen in experimental studies: studying reaction rates as a function of electronic and steric properties showed that ligands bearing more electron‐poor functionality increase the rate of oxidative addition; in a complementary way, electron‐rich aryl iodides give faster rates. This divergence in mechanism compared to Pd suggests that Ar−X oxidative addition with Au can underpin a broad range of new or complementary transformations.
Triggered Reversible Disassembly of an Engineered Protein Nanocage**
Authors: Jones Jesse A. , Cristie‐David Ajitha S. , Andreas Michael P. , Giessen Tobias W. 
Published: September 2021

AbstractProtein nanocages play crucial roles in sub‐cellular compartmentalization and spatial control in all domains of life and have been used as biomolecular tools for applications in biocatalysis, drug delivery, and bionanotechnology. The ability to control their assembly state under physiological conditions would further expand their practical utility. To gain such control, we introduced a peptide capable of triggering conformational change at a key structural position in the largest known encapsulin nanocompartment. We report the structure of the resulting engineered nanocage and demonstrate its ability to disassemble and reassemble on demand under physiological conditions. We demonstrate its capacity for in vivo encapsulation of proteins of choice while also demonstrating in vitro cargo loading capabilities. Our results represent a functionally robust addition to the nanocage toolbox and a novel approach for controlling protein nanocage disassembly and reassembly under mild conditions.
Highly Selective Tandem Electroreduction of CO2 to Ethylene over Atomically Isolated Nickel–Nitrogen Site/Copper Nanoparticle Catalysts
Authors: Meng Dong‐Li , Zhang Meng‐Di , Si Duan‐Hui , Mao Min‐Jie , Hou Ying , Huang Yuan‐Biao , Cao Rong 
Published: September 2021

AbstractHerein, an effective tandem catalysis strategy is developed to improve the selectivity of the CO2RR towards C2H4 by multiple distinct catalytic sites in local vicinity. An earth‐abundant elements‐based tandem electrocatalyst PTF(Ni)/Cu is constructed by uniformly dispersing Cu nanoparticles (NPs) on the porphyrinic triazine framework anchored with atomically isolated nickel–nitrogen sites (PTF(Ni)) for the enhanced CO2RR to produce C2H4. The Faradaic efficiency of C2H4 reaches 57.3 % at −1.1 V versus the reversible hydrogen electrode (RHE), which is about 6 times higher than the non‐tandem catalyst PTF/Cu, which produces CH4 as the major carbon product. The operando infrared spectroscopy and theoretic density functional theory (DFT) calculations reveal that the local high concentration of CO generated by PTF(Ni) sites can facilitate the C−C coupling to form C2H4 on the nearby Cu NP sites. The work offers an effective avenue to design electrocatalysts for the highly selective CO2RR to produce multicarbon products via a tandem route.
Effect of metal centers of complexes bearing bipyridine ligand for electrochemical‐ and photochemical‐driven hydrogen evolution
Authors: Wang Chun‐Li , Yang Hao , Du Juan , Zhan Shu‐Zhong 
Published: September 2021

In this work, two complexes with bipyridine ligand, [Co (bpy)2(SCN)2] 1 and [Ni (bpy)2(SCN)2] 2 have been prepared and well determined by single crystal X‐crystallography, power X‐ray diffraction (XRD), IR spectra, and so forth. Both exhibit good catalytic activity for electrochemical‐ and photochemical driven‐hydrogen evolution. Complexes 1 and 2 can electro‐catalyze H2 evolution from a neutral buffer (pH 7.0) with a turnover frequency (TOF) of 699.6 and 1469 mol H2/mol catalyst/h at an overpotential (OP) of 837.6 mV, respectively. Under blue light (λ = 469 nm), together with CdS nanorods (CdS NRs) as a photosensitizer, and ascorbic acid as a sacrificial electron donor, complexes 1 and 2 also can photo‐catalyze H2 evolution from water. Under an optimal condition, the turnover numbers (TONs) reach 10,600 (complex 1) and 15,180 (complex 2) mol of H2 per mol of catalyst during 48‐h irradiation, respectively. The average apparent quantum yields (AQYs) of complex 1 and complex 2 are 15.07% and 22.7%, respectively. Electrochemical and photochemical investigations show that the nickel complex has a higher activity for hydrogen evolution than that of the cobalt complex. These results can provide a new insight into design and manufacture of new H2‐production catalyst.
Formulation of silica‐based corn oil transformed polyester acryl amide‐phenol formaldehyde corrosion resistant coating material
Authors: Alam Manawwer , Zafar Fahmina , Ghosal Anujit , Ahmed Mukhtar 
Published: September 2021

AbstractIt is important to check the economic losses due to spontaneous metallic corrosion of major infrastructures, precious equipment's, and ensure the sustainable growth. Fabrication of environmentally benign functional polymeric material by transforming agricultural waste and products into value added polymeric products is of great importance in recent times. Here, we report the formulation of functional hybrid polymeric material using corn oil (CO) as our starting material. The functionality of CO was improved by green route, to produce corn diol fatty amide (HECA). Functionalization of CO was achieved in systematic manner by following green chemistry approach. First, diol fatty amide (HECA) was prepared followed by conversion of terminal OH groups of HECA into acrylic ester using condensation reaction with acrylic acid (AA). The base polymeric moiety was further modified to include phenyl acetylene functionality and SiO2 nanoparticle entities. The formulation of hydrophobic stable polymeric structure is important to sustain highly corrosive environment and long‐lasting performance of the material. The inclusion of different functionality and hydrophobic groups were confirmed by Fourier‐transform infrared and proton nuclear magnetic resonance spectroscopies. The baked coating was finalized by addition of phenol formaldehyde polymeric resin in different phr (part per hundred part of resin). The transmission electron microscopy, scanning electron microscope, energy dispersive X‐ray spectroscopy, and elemental mapping of the coating material confirms the formation of a hybrid material with uniform distribution of inorganic and organic components. The potentiodynamic polarization and electrochemical impedance spectroscopic analysis verified the better resistive performance of inorganic hybrid over the counter organic coatings. The enhanced thermal stability, hydrophobic character, and corrosion resistance performance of CO based coating material indicates the potential of the synthesized green route materials.
Risk of thyroid as a first or second primary cancer. A population‐based study in Italy, 1998–2012
Authors: Crocetti Emanuele , Mattioli Veronica , Buzzoni Carlotta , Franceschi Silvia , Serraino Diego , Vaccarella Salvatore , Ferretti Stefano , Busco Susanna , Fedeli Ugo , Varvarà Massimo , Falcini Fabio , Zorzi Manuel , Carrozzi Giuliano , Mazzucco Walter , Gasparotti Cinzia , Iacovacci Silvia , Toffolutti Federica , Cavallo Rossella , Stracci Fabrizio , Russo Antonio G. , Caldarella Adele , Rosso Stefano , Musolino Antonino , Mangone Lucia , Casella Claudia , Fusco Mario , Tagliabue Giovanna , Piras Daniela , Tumino Rosario , Guarda Linda , Dinaro Ylenia M. , Piffer Silvano , Pinna Pasquala , Mazzoleni Guido , Fanetti Anna C. , Dal Maso Luigino ,   for AIRTUM working group
Published: September 2021

AbstractBackgroundThe number of patients living after a cancer diagnosis is increasing, especially after thyroid cancer (TC). This study aims at evaluating both the risk of a second primary cancer (SPC) in TC patients and the risk of TC as a SPC.MethodsWe analyzed two population‐based cohorts of individuals with TC or other neoplasms diagnosed between 1998 and 2012, in 28 Italian areas covered by population‐based cancer registries. Standardized incidence ratios (SIRs) of SPC were stratified by sex, age, and time since first cancer.ResultsA total of 38,535 TC patients and 1,329,624 patients with other primary cancers were included. The overall SIR was 1.16 (95% CI: 1.12–1.21) for SPC in TC patients, though no increase was shown for people with follicular (1.06) and medullary (0.95) TC. SPC with significantly increased SIRs was bone/soft tissue (2.0), breast (1.2), prostate (1.4), kidney (2.2), and hemolymphopoietic (1.4) cancers. The overall SIR for TC as a SPC was 1.49 (95% CI: 1.42–1.55), similar for all TC subtypes, and it was significantly increased for people diagnosed with head and neck (2.1), colon–rectum (1.4), lung (1.8), melanoma (2.0), bone/soft tissue (2.8), breast (1.3), corpus uteri (1.4), prostate (1.5), kidney (3.2), central nervous system (2.3), and hemolymphopoietic (1.8) cancers.ConclusionsThe increased risk of TC after many other neoplasms and of few SPC after TC questions the best way to follow‐up cancer patients, avoiding overdiagnosis and overtreatment for TC and, possibly, for other malignancies.
Tai Chi for cancer survivors: A systematic review toward consensus‐based guidelines
Authors: Yang Lin , Winters‐Stone Kerri , Rana Benny , Cao Chao , Carlson Linda E. , Courneya Kerry S. , Friedenreich Christine M. , Schmitz Kathryn H. 
Published: September 2021

AbstractTo manage acute, long‐term, and late effects of cancer, current guidelines recommend moderate‐to‐vigorous intensity aerobic and resistance exercise. Unfortunately, not all cancer survivors are able or willing to perform higher intensity exercise during difficult cancer treatments or because of other existing health conditions. Tai Chi is an equipment‐free, multicomponent mind–body exercise performed at light‐to‐moderate intensity that may provide a more feasible alternative to traditional exercise programs for some cancer survivors. This systematic review evaluated the therapeutic efficacy of Tai Chi across the cancer care continuum. We searched MEDLINE/PubMed, Embase, SCOPUS, and CINAHL databases for interventional studies from inception to 18 September 2020. Controlled trials of the effects of Tai Chi training on patient‐reported and objectively measured outcomes in cancer survivors were included. Study quality was determined by the RoB 2 tool, and effect estimates were evaluated using the Best Evidence Synthesis approach. Twenty‐six reports from 14 trials (one non‐randomized controlled trial) conducted during (n = 5) and after treatment (after surgery: n = 2; after other treatments: n = 7) were included. Low‐level evidence emerged to support the benefits of 40–60 min of thrice‐weekly supervised Tai Chi for 8–12 weeks to improve fatigue and sleep quality in cancer survivors. These findings need to be confirmed in larger trials and tested for scaling‐up potential. Insufficient evidence was available to evaluate the effects of Tai Chi on other cancer‐related outcomes. Future research should examine whether Tai Chi training can improve a broader range of cancer outcomes including during the pre‐treatment and end of life phases.
The Influence of Environmental Conditions on Secondary Metabolites in Medicinal Plants: A Literature Review
Authors: Pant Poonam , Pandey Sudip , Dall'Acqua Stefano 
Published: September 2021

AbstractMedicinal plants, a source of different phytochemical compounds, are now subjected to a variety of environmental stresses during their growth and development. Different ecologically limiting factors including temperature, carbon dioxide, lighting, ozone, soil water, soil salinity and soil fertility has significant impact on medicinal plants′ physiological and biochemical responses, as well as the secondary metabolic process. Secondary metabolites (SMs) are useful for assessing the quality of therapeutic ingredients and nowadays, these are used as important natural derived drugs such as immune suppressant, antibiotics, anti‐diabetic, and anti‐cancer. Plants have the ability to synthesize a variety of secondary metabolites to cope with the negative effects of stress. Here, we focus on how individual environmental variables influence the accumulation of plant secondary metabolites. A total of 48 articles were found to be relevant to the review topic during our systematic review. The review showed the influence of different environmental variables on SMs production and accumulation is complex suggesting the relationship are not only species‐specific but also related to increases and decline in SMs by up to 50 %. Therefore, this review improves our understanding of plant SMs ability to adapt to key environmental factors. This can aid in the efficient and long‐term optimization of cultivation techniques under ambient environmental conditions in order to maximize the quality and quantity of SMs in plants.
Supporting undocumented community college students
Authors: Ngo Federick , Hinojosa Juanita K. 
Published: September 2021

AbstractCommunity colleges are a critical access point to higher education for undocumented students, yet undocumented community college students often report feelings of constrained inclusion due to the limitations created by their citizenship status (Negrón‐Gonzales, 2017). In this article, we review existing research on undocumented students in 2‐year colleges, discussing the policies and practices that can be implemented to support undocumented community college students. Supportive policies include tuition and aid policy, college promise programs, and dual enrollment. Supportive campus environments can be facilitated through flexible scheduling, clear and accessible information, mental health resources, staff training and professional development, funding dedicated staff positions, and creating undocumented student resource centers.
Statewide apprenticeships: Building pathways in community and technical colleges
Authors: Anderson Lexi , Keily Tom 
Published: September 2021

AbstractAs employers look for skilled individuals to fill high‐demand jobs, registered apprenticeships provide opportunities for people to engage in dedicated on‐the‐job training in conjunction with related classroom instruction that directly links to a career path. The benefit of related instruction in tandem to on‐the‐job training is clear; however, the connection between postsecondary education and apprenticeships is less clear. Historically, states have looked to community and technical colleges to provide the related instruction required for registered apprenticeships. This article takes a deeper dive into how three states coordinate training for registered apprenticeships across a range of industries through community and technical colleges. The authors conducted surveys with key stakeholders coordinating registered apprenticeships in the state. Based on the surveys, the article provides historical perspectives of apprenticeships, overviews of statewide apprenticeship programs, and state policy considerations for future innovation.
Exploring the relationship between community colleges’ participation in SARA and enrollment in distance education
Authors: Weeden Dustin D. , Lee Jason C. , Tandberg David A. , Bruecker Ellie M. 
Published: September 2021

AbstractWith the growth in distance education programs and other interstate activities, community colleges increasingly need to be authorized by multiple states. State authorization provides the legal approval for postsecondary education providers to offer credentials and conduct related activities. Participation in the State Authorization Reciprocity Agreements (SARA) allows an institution to provide distance education to students in other SARA‐member states by honoring its original state authorization through interstate reciprocity. For community colleges, SARA reduces the administrative burden to participate in distance education. This article examines trends in SARA participation and the relationship between this participation and distance education enrollment. Using NC‐SARA and IPEDS data, we find that participation in SARA has grown rapidly, particularly among colleges with higher online enrollments. Distance education enrollments have likewise grown at community colleges, suggesting that SARA has successfully helped institutions maintain and grow multistate distance education programs.
Molecular Catalysis of Electrochemical Reactions: Competition between Reduction of the Substrate and Deactivation of the Catalyst by a Cosubstrate Application to N2O Reduction
Authors: Deeba Rana , Chardon‐Noblat Sylvie , Costentin Cyrille 
Published: September 2021

AbstractIn the context of molecular catalysis of electrochemical reactions, the competition between reduction of the substrate and deactivation of the catalyst by a cosubstrate is investigated. It is a frequent situation because proton donors are ubiquitous cosubstrates in reductive electrochemical reactions and molecular catalysts, either transition metal complexes or organic aromatic molecules, and are often prone to electrohydrogenation. We provide a formal kinetic analysis in the framework of cyclic voltammetry, and we show that the response is governed by two parameters and that the competition does not depend on the scan rate. From this analysis a methodology is proposed to analyze such systems and then illustrated via the study of N2O to N2 electroreduction catalyzed by 4‐cyanopyridine in acetonitrile electrolyte with water as proton donor. Incidentally, new insights into the mechanism of 4‐cyanopyridine radical anion protonation are revealed.
A cross‐flow rotating packed bed toward desulphurization of marine exhaust gas
Authors: Cai Yong , Li Yan‐Bin , Fei Jia , Luo Yong , Wen Zhang‐Nan , Chu Guang‐Wen 
Published: September 2021

AbstractThe marine exhaust gas containing SO2leads to serious impacts on human health and marine environments. Due to the strict emission standard of marine exhaust gas and the limited space of ships, desulphurization process intensification is urgent. Herein, a cross‐flow rotating packed bed (CF‐RPB) with a compact size was developed toward desulphurization of marine exhaust gas. According to the emission standards of different sea areas, the characteristics of simulated open seawater desulphurization (OSD) and closed alkali desulphurization (CAD) were systematically evaluated. The respective correlations forKyaof OSD and CAD were proposed to predict the height of CF‐RPB. The desulphurization efficiencies of 86% in the OSD and 97% in the CAD were achieved in a three‐stage CF‐RPB, satisfying the emission standard. Compared with the traditional spray tower, the CF‐RPB has a higher mass transfer coefficient with a smaller volume, which has great potential for desulphurization of marine exhaust gas.