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Single-atom Pt on carbon nanotubes for selective electrocatalysis

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Carbon Energy 2024年第1期6卷 63-71页

作者： Samuel S.Hardisty Xiaoqian Lin anthony R.j.Kucernak David Zitoun Department of Chemistry Bar Ilan Institute of Nanotechnology and Advanced Materials(BINA)Bar Ilan UniversityRamat GanIsrael Department of Chemistry Molecular Science Research HubImperial College LondonLondonUK

Utilizing supported single atoms as catalysts presents an opportunity to reduce the usage of critical raw materials such as platinum,which are essential for electrochemical reactions such as hydrogen oxidation reaction(HOR).Herein,we describe the synthesis of a Pt single electrocatalyst inside single-walled carbon nanotubes(SWCNTs)via a redox *** via electron microscopy,X-ray photoelectron microscopy,and X-ray absorption spectroscopy show the single-atom nature of the *** electrochemical behavior of the sample to hydrogen and oxygen was investigated using the advanced floating electrode technique,which minimizes mass transport limitations and gives a thorough insight into the activity of the *** single-atom samples showed higher HOR activity than state-of-the-art 30%Pt/C while almost no oxygen reduction reaction activity in the proton exchange membrane fuel cell operating *** selective activity toward HOR arose as the main fingerprint of the catalyst confinement in the SWCNTs.

关键词： confinement electrocatalysis hydrogen platinum single atom catalysts

Two-stage corrective operation for the treatment of pes cavovarus in patients with spina bifida

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World j.urnal of Orthopedics 2024年第7期15卷 618-626页

作者： anthony Mack Padgett Ezan Kothari Michael j.Conklin Department of Orthopedics Indiana UniversityIndianapolisIN 46202United States Department of Orthopaedic Surgery University of Alabama at BirminghamBirminghamAL 35233United States Department of Orthopedic Surgery Children’s of AlabamaBirminghamAL 35233United States

BACKGROUND Pes cavovarus has an estimated incidence of 8%-17%in patients with spina bifida(SB).The maj.rity of the current literature on surgical treatment of cavovarus feet in children and adolescents includes a variety of *** are currently no case series describing a treatment algorithm for deformity correction in this specific patient *** authors of this study present the results of a retrospective case series performed to assess the radiographic outcomes of two-stage corrective surgery in patients with *** Retrospective chart review was performed on patients with SB with a diagnosis of pes cavovarus at a freestanding children’s hospital who underwent surgical correction of the *** were excluded for lack of two-stage corrective operation,nonambulatory status,lack of at least six months follow-up,and age>18 years at the time of *** resulted in a cohort of 19 *** analysis was performed on 11 feet that had a complete series of preoperative and postoperative weightbearing *** and postoperative radiographic outcome measurements were compared using a two-sample *** Significant changes between the preoperative and postoperative measurements were seen in Meary’s angle,the anteroposterior talo-first metatarsal(AP TMT1)angle,and the talonavicular *** values of Meary’s angle were 17.9±13.1 preoperatively and 4.7±10.3 postoperatively(P=0.016).Mean AP TMT1 angle was 20.6±15.1 preoperatively and 9.3±5.5 postoperatively(P=0.011).Mean talonavicular coverage values were-10.3±9.6 preoperatively and-3.8±10.1 postoperatively(P=0.025).CONCLUSION The two-stage corrective procedure demonstrated efficacy in correcting cavovarus deformity in patients with *** should strongly consider employing the staged surgical algorithm presented in this manuscript for management of these patients.

关键词： Cavovarus Spina bifida Osteotomy Plantar release Radiographs Pediatrics

Deciphering the mechanobiology of microglia in traumatic brain inj.ry with advanced microsystems

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Neural Regeneration Research 2025年第8期20卷 2304-2306页

作者： anthony Procès Sylvain Gabriele Univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced microsystems in traumatic brain inj.ry research:Traumatic brain inj.ry(TBI)results from a mechanical insult to the brain,leading to neuronal and axonal damage and subsequently causing a secondary *** minutes ... 详细信息

关键词： traumatic inj.ry damage

Academic productivity correlates with industry earnings in foot and ankle fellowship programs in the United States:A retrospective analysis

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World j.urnal of Orthopedics 2024年第2期15卷 129-138页

作者： Albert T Anastasio anthony N Baumann Kempland C Walley Kyle j.Hitchman Conor O’Neill j.nathan Kaplan Samuel B Adams Department of Orthopedic Surgery Duke University HospitalDurhamNC 27710United States College of Medicine Northeast Ohio Medical UniversityRootstownOH 44272United States Department of Orthopedic Surgery University of MichiganAnn ArborMI 48109United States School of Osteopathic Medicine Campbell UniversityLillingtonNC 27546United States

BACKGROUND The study investigates the connection between academic productivity and industry earnings in foot and ankle orthopedic surgery *** metrics like the H-index and Open Payments Database(OPD)data,it addresses a gap in understanding the relationship between scholarly achievements and financial outcomes,providing a basis for further exploration in this specialized medical *** To elucidate the trends between academic productivity and industry earnings across foot and ankle orthopedic surgery fellowship programs in the United *** This study is a retrospective analysis of the relationship between academic productivity and industry earnings of foot and ankle orthopedic surgery fellowships at an individual faculty and fellowship *** productivity was defined via H-index and recorded from the Scopus *** earnings were recorded from the *** Forty-eight foot and ankle orthopedic surgery fellowships(100%of fellowships)in the United States with a combined total of 165 physicians(95.9%of physicians)were *** individual physician(n=165)total life-time earnings reported on the OPD website was United States Dollar(USD)451430.30±1851084.89(range:USD 25.16-21269249.85;median:USD 27839.80).Mean physician(n=165)H-index as reported on Scopus is 14.24±12.39(range:0-63;median:11).There was a significant but weak correlation between individual physician H-index and individual physician total life-time earnings(P<0.001;Spearman’s rho=0.334)and a significant and moderate positive correlation between combined fellowship H-index and total life-time earnings per fellowship(P=0.004,Spearman’s rho=0.409).CONCLUSION There is a significant and positive correlation between academic productivity and industry earnings at foot and ankle orthopedic surgery fellowships in the United *** observation is true on an individual physician level as well as on a fellowship level.

关键词： Sunshine act Foot and ankle Orthopedic surgery Orthopedic fellowship Industry earnings

The risk of prostate cancer on incidental finding of an avid prostate uptake on 2-deoxy-2-[^(18)F]fluoro-D-glucose positron emission tomography/computed tomography for non-prostate cancer-related pathology:A single centre retrospective study

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Asian j.urnal of Urology 2024年第1期11卷 33-41页

作者： anthony Franklin Troy Gianduzzo Boon Kua David Wong Louise McEwan j.mes Walters Rachel Esler Matthew j.Roberts Geoff Coughlina j.hn W.Yaxley Department of Urology The Wesley HospitalBrisbaneQLDAustralia Wesley Medical Research BrisbaneQLDAustralia School of Medicine The University of QueenslandBrisbaneQLDAustralia Department of Radiology Wesley Medical ImagingBrisbaneQLDAustralia Department of Urology Royal Brisbane and Women's HospitalBrisbaneQLDAustralia

Obj.ctive:To review the risk of prostate cancer(PCa)in men with incidentally reported increased intraprostatic uptake at 2-deoxy-2-[18F]fluoro-d-glucose positron emission tomography/computed tomography(18F-FDG PET/CT)ordered at Department of Urology,The Wesley Hospital,Brisbane,QLD,Australia for non-PCa related ***:Retrospective analysis of consecutive men between August 2014 and August 2019 presenting to a single institution for 18F-FDG PET/CT for non-prostate related conditions was *** were classified as benign,indeterminate,or malignant depending of the results of prostate-specific antigen(PSA),PSA velocity,biopsy histopathology,and three-Tesla(3 T)multiparametric MRI(mpMRI)Prostate Imaging Reporting and Data System score,or gallium-68-prostate-specific membrane antigen(68Ga-PSMA)PET/CT ***:Three percent(273/9122)of men demonstrated 18F-FDG avidity within the ***-five percent(231/273)were further investigated,including with PSA tests(227/231,98.3%),3 T mpMRI(68/231,29.4%),68Ga-PSMA PET/CT(33/231,14.3%),and prostate biopsy(57/231,24.7%).Results were considered benign in 130/231(56.3%),indeterminate in 31/231(13.4%),and malignant in 70/231(30.3%).PCa was identified in 51/57(89.5%)of the men who proceeded to biopsy,including 26/27(96.3%)men with Prostate Imaging Reporting and Data System scores 4-5 mpMRI and six men with a positive 68Ga-PSMA PET/*** most common Gleason score on biopsy was greater than or equal to 4+5(14/51,27.5%).68Ga-PSMA PET/CT was concordant with the 18F-FDG findings in 26/33(78.8%).All 13 men with a positive concordant 18F-FDG,3 T mpMRI,and 68Ga-PSMA PET/CT had PCa on *** was no statistically significant difference in the 18F-FDG maximum standardized uptake value between the benign or malignant groups(5.7 vs.6.1;p=0.580).Conclusion:In this study,after an incidental finding of an avid intraprostatic lesion on 18F-FDG PET/CT,70 of the 231 cases(30.3%;0.8%of the entire cohort)had results c

关键词： Prostatecancer Positionemission tomography Multiparametric magneticresonance imaging Prostatebiopsy

Activation of cerebral Ras-related C3 botulinum toxin substrate(Rac) 1 promotes post-ischemic stroke functional recovery in aged mice

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Neural Regeneration Research 2024年第4期19卷 881-886页

作者： Fan Bu j.a-Wei Min Md Abdur Razzaque Ahmad El Hamamy anthony Patrizz Li Qi Akihiko Urayama j.n Li Department of Neurology University of Texas Health Science Center Department of Neurology&Psychology The Fourth Clinical Medical College of Guangzhou University of Chinese Medicine

Brain functional impairment after stroke is common;however,the molecular mechanisms of post-stroke recovery remain *** is well-recognized that age is the most important independent predictor of poor outcomes after stroke as older patients show poorer functional outcomes following *** evidence suggests that axonal regeneration and angiogenesis,the maj.r forms of brain plasticity responsible for post-stroke recovery,diminished with advanced *** studies suggest that Ras-related C3 botulinum toxin substrate(Rac)1 enhances stroke recovery as activation of Rac1 improved behavior recovery in a young mice stroke ***,we investigated the role of Rac1 signaling in long-term functional recovery and brain plasticity in an aged(male,18 to 22 months old C57BL/6j.brain after ischemic *** found that as mice aged,Rac1 expression declined in the *** overexpression of Rac1,using lentivirus encoding Rac1 inj.cted day 1 after ischemic stroke,promoted cognitive(assessed using novel obj.ct recognition test)and sensorimotor(assessed using adhesive removal tests)recovery on days 14–*** was accompanied by the increase of neurite and proliferative endothelial cells in the periinfarct zone assessed by *** a reverse approach,pharmacological inhibition of Rac1 by intraperitoneal inj.ction of Rac1 inhibitor NSC23766 for 14 successive days after ischemic stroke worsened the outcome with the reduction of neurite and proliferative endothelial ***,Rac1 inhibition reduced the activation of p21-activated kinase 1,the protein level of brain-derived neurotrophic factor,and increased the protein level of glial fibrillary acidic protein in the ischemic brain on day 28 after *** work provided insight into the mechanisms behind the diminished plasticity after cerebral ischemia in aged brains and identified Rac1 as a potential therapeutic target for improving functional recovery in the older adults after stroke.

关键词： aging angiogenesis brain-derived neurotrophic factor(BDNF) cerebral ischemia cognitive recovery neurite Pak1 Rac1 sensorimotor recovery

Reflections on the past, present and future of condensed matter physics

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Science Bulletin 2018年第16期63卷 1019-1022页

作者： anthony j. Leggett Department of Physics University of lUinois at Urbana-Champaign Urbana IL 61801-3003 USA Shanghai Center for Complex Physics Shanghai Jiao Tong University Shanghai 200240 China

I will not go into the history of how I come to be giving a talk with this preposterously pretentious ***,a couple of general comments before I start:first,I am a‘‘pure"rather than an applied physicist,and I am afraid that my talk will give rather short shrift to the applied side of condensed matter physics(CMP),which of course has been hugely important over the

关键词：物理学家压缩礼品试验性应用

SIMULTANEOUS SAXS/WAXS/DSC STUDIES ON MICROSTRUCTURE OF CONVENTIONAL AND METALLOCENE-BASED ETHYLENE-BUTENE COPOLYMERS

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Chinese j.urnal of Polymer Science 2004年第3期22卷 279-287页

作者：徐君庭 anthony j. Ryan Department of Polymer Science & Engineering Zhejiang University Hangzhou 310027 China Chemistry Department The University of Sheffield Sheffield S3 7HF UK

The fractions of one metallocene-based (mPE) and one conventional (znPE) ethylene-butene copolymer eluted at from temperature rising elution fractionation were selected for DSC and time-resolved small angle X-ray scattering (SAXS) and wide angle X-ray scattering (WAXS) characterization. The DSC and WAXS results show that two crystal structures exist in both mPE and znPE: structure A with higher melting temperature and structure B with lower melting temperature. It was found that original znPE (s-znPE) contains more highly ordered structure A than original mPE (s-mPE) in spite of the higher comonomer content of znPE. Another structure C is also identified because of higher crystallinity measured by WAXS than by DSC and is attributed to the interfacial region. The SAXS data were analyzed with correlation function and two maxima were observed in s-mPE and s-znPE, in agreement with the conclusion of two crystal populations drawn from DSC and WAXS results. These two crystal populations have close long periods in s-mPE, but very different long periods in s-znPE. In contrast, freshly crystallized mPE and znPE (f-mPE and f-znPE) contain only a single crystal population with a broader distribution of long period

关键词： SAXS WAXS Microstructure Metallocene Ethylene-butene copolymer

SCFD1 in amyotrophic lateral sclerosis:reconciling a genetic association with in vivo functional analysis

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Neural Regeneration Research 2024年第6期19卷 1201-1202页

作者： Ruben j.Cauchi Centre for Molecular Medicine and Biobanking Biomedical Sciences BuildingDepartment of Physiology and BiochemistryFaculty of Medicine and SurgeryUniversity of MaltaMsidaMalta

Amyotrophic lateral sclerosis(ALS)is a neurodegenerative disease characterized by progressive loss of upper and lower motor neurons,resulting in muscle weakness and spasticity,eventually leading to death due to respiratory *** by our group of a casecontrol cohort from an isolated island population have found that genetics plays a significant role in disease etiology(Farrugia Wismayer et al.,2023).

关键词： sclerosis respiratory