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Aggregation-induced emission polymers via reversible-deactivation radical polymerization Special Collection:Distinguished Australian Researchers

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Aggregate

Aggregate 2024年第1期5卷 16-46页

作者： nicholas Kai Shiang Teo Bo Fan Aditya Ardana San h.Thang School of Chemistry Monash UniversityClaytonVictoriaAustralia

Aggregation-induced emission(AIE)is a unique phenomenon whereby aggregation of molecules induces fluorescence emission as opposed to the more commonly known aggregation-caused quenching(ACQ).AIE has the potential to be utilized in the large-scale production of AIE-active polymeric materials because of their wide range of practical applications such as stimuli-responsive sensors,biological imaging agents,and drug delivery *** is evident from the increasing number of publications over the years since AIE was first *** addition,the evergrowing interest in this field has led many researchers around the world to develop new and creative methods in the design of monomers,initiators and crosslinkers,with the goal of broadening the scope and utility of AIE *** of the most promising approaches to the design and synthesis of AIE polymers is the use of the reversible-deactivation radical polymerization(RDRP)techniques,which enabled the production of well-controlled AIE materials that are often difficult to achieve by other *** this review,a summary of some recent works that utilize RDRP for AIE polymer design and synthesis is presented,including(i)the design of AIE-related monomers,initiators/crosslinkers;the achievements in preparation of AIE polymers using(ii)reversible addition–fragmentation chain transfer(RAFT)technique;(iii)atom transfer radical polymerization(ATRP)technique;(iv)other techniques such as Cu(0)-RDRP technique and nitroxide-mediated polymerization(NMP)technique;(v)the possible applications of these AIE polymers,and finally(vi)a summary/perspective and the future direction of AIE polymers.

关键词： aggregation-induced emission atom transfer radical polymerization nitroxide-mediated polymerization reversible addition–fragmentation chain transfer reversible-deactivation radical polymerization

Olympic Games and 24-hour movement behaviors:A match worth making

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Journal of Sport and health Science 2024年第6期13卷 728-731页

作者： Mark S.Tremblay nicholas Kuzik Markus J.Duncan Diego Augusto Santos Silva ChEO Research Institute OttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada Federal University of Santa Catarina FlorianopolisSanta Catarina 88040-900Brazil

*** The Olympic motto,"Faster,higher,Stronger-Together",represents the pursuit of athletic excellence,united as a global community."Excellence,respect and friendship"are the Olympic *** the motto and values are multifaceted and holistic in nature,and all-encompassing in their reach while recognizing no single entity rises above the ***,these foundational statements anchor the Olympic movement in its quest to build a better world through sport.

关键词： movement Together pursuit

Towards precision 24-hour movement behavior recommendations—The next new paradigm?

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Journal of Sport and health Science 2024年第6期13卷 743-748页

作者： Mark S.Tremblay Markus J.Duncan nicholas Kuzik Diego Augusto Santos Silva Valerie Carson ChEO Research Institute OttawaON K1H 8L1Canada Department of Pediatrics University of OttawaOttawaON K1H 8L1Canada Federal University of Santa Catarina Santa Catarina 88040900Brazil Faculty of Kinesiology Sportand RecreationUniversity of AlbertaEdmontonAB T6G 2H9Canada

*** The importance of physical activity(PA)for health is unequivocal.^(1)Accordingly,population-based recommendations for exercise,and more recently public health guidelines for PA,have been developed and released by authoritative groups for many decades.^(2)Such guidelines emerged with leadership from the exercise physiology discipline and were rooted in,and loyal to,the importance of moderate-to-vigorous intensity PA(MVPA)or exercise.

关键词： movement behavior exercise

hDPairFinder:A data processing platform for hydrogen/deuterium isotopic labeling-based nontargeted analysis of trace-level amino-containing chemicals in environmental water

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Journal of Environmental Sciences 2024年第2期136卷 583-593页

作者： Tingting Zhao Kristin Carroll Caley B.Craven nicholas J.P.Wawryk Shipei Xing Jian Guo Xing-Fang Li Tao huan Department of Chemistry Faculty of ScienceUniversity of British ColumbiaVancouver Campus2036 Main MallVancouverBritish ColumbiaV6T 1Z1Canada Division of Analytical and Environmental Toxicology Department of Laboratory Medicine and PathologyFaculty of Medicine and DentistryUniversity of AlbertaEdmontonAlberta T6G 2G3Canada

The combination of hydrogen/deuterium(h/D)formaldehyde-based isotopic methyl labeling with solid-phase extraction and high-performance liquid chromatography–high resolution mass spectrometry(hPLC-hRMS)is a powerful analytical solution for nontargeted analysis of trace-level amino-containing chemicals in water *** the huge amount of chemical information generated in hPLC-hRMS analysis,identifying all possible h/Dlabeled amino chemicals presents a significant challenge in data *** address this,we designed a streamlined data processing pipeline that can automatically extract h/D-labeled amino chemicals from the raw hPLC-hRMS data with high accuracy and ***,we developed a cross-correlation algorithm to correct the retention time shift resulting from deuterium isotopic effects,which enables reliable pairing of h-and D-labeled ***,we implemented several bioinformatic solutions to remove false chemical features generated by in-source fragmentation,salt adduction,and natural13C ***,we used a data mining strategy to construct the AMINES library that consists of over 38,000 structure-disjointed primary and secondary amines to facilitate putative compound ***,we integrated these modules into a freely available R program,*** rationale of each module was justified and its performance tested using experimental h/D-labeled chemical standards and authentic water *** further demonstrated the application of hDPairFinder to effectively extract N-containing contaminants,thus enabling the monitoring of changes of primary and secondary N-compounds in authentic water *** is a reliable bioinformatic tool for rapid processing of h/D isotopic methyl labeling-based nontargeted analysis of water samples,and will facilitate a better understanding of N-containing chemical compounds in water.

关键词： Isotope labeling Nontargeted analysis Reactive N-compounds hPLC-hRMS Source water

Groupoid Approach to Ergodic Dynamical System of Commutative von Neumann Algebra

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Advances in Pure Mathematics 2024年第3期14卷 167-184页

作者： nicholas O. Okeke Murphy E. Egwe Physical and Mathematical Sciences Dominican University Ibadan Nigeria Department of Mathematics University of Ibadan Ibadan Nigeria

Given a compact and regular hausdorff measure space (X, μ), with μ a Radon measure, it is known that the generalised space M(X) of all the positive Radon measures on X is isomorphic to the space of essentially bounded functions L∞(X, μ) on X. We confirm that the commutative von Neumann algebras M⊂B(h), with h=L2(X, μ), are unitary equivariant to the maximal ideals of the commutative algebra C(X). Subsequenly, we use the measure groupoid to formulate the algebraic and topological structures of the commutative algebra C(X) following its action on M(X) and define its representation and ergodic dynamical system on the commutative von Neumann algebras of M of B(h) .

关键词： Measure Groupoid Groupoid Equivalence Ergodic Action Convolution Algebra von Neumann Algebra Generalized Space

Long-term impact of artificial intelligence on colorectal adenoma detection in high-risk colonoscopy

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World Journal of Gastrointestinal Endoscopy 2024年第6期16卷 335-342页

作者： Kenneth W Chow Matthew T Bell nicholas Cumpian Maryanne Amour Ryan h hsu Viktor E Eysselein Neetika Srivastava Michael W Fleischman Sofiya Reicher Department of Medicine Harbor-UCLA Medical CenterTorranceCA 90502United States Department of Bioengineering Jacobs School of EngineeringUniversity of CaliforniaSan DiegoLa JollaCA 92093United States Department of Gastroenterology Harbor-UCLA Medical CenterTorranceCA 90502United States

BACKGROUND Improved adenoma detection rate(ADR)has been demonstrated with artificial intelligence(AI)-assisted ***,data on the real-world appli-cation of AI and its effect on colorectal cancer(CRC)screening outcomes is *** To analyze the long-term impact of AI on a diverse at-risk patient population undergoing diagnostic colonoscopy for positive CRC screening tests or *** AI software(GI Genius,Medtronic)was implemented into the standard proced-ure protocol in November *** was collected on patient demographics,procedure indication,polyp size,location,and *** screening outcomes were evaluated before and at different intervals after AI introduction with one year of *** We evaluated 1008 colonoscopies(278 pre-AI,255 early post-AI,285 established post-AI,and 190 late post-AI).The ADR was 38.1%pre-AI,42.0%early post-AI(P=0.77),40.0%established post-AI(P=0.44),and 39.5%late post-AI(P=0.77).There were no significant differences in polyp detection rate(PDR,baseline 59.7%),advanced ADR(baseline 16.2%),and non-neoplastic PDR(baseline 30.0%)before and after AI *** In patients with an increased pre-test probability of having an abnormal colonoscopy,the current generation of AI did not yield enhanced CRC screening metrics over high-quality *** the potential of AI in colonoscopy is undisputed,current AI technology may not universally elevate screening metrics across all situations and patient *** studies that analyze different AI systems across various patient populations are needed to determine the most effective role of AI in optimizing CRC screening in clinical practice.

关键词： Artificial intelligence Colonoscopy Adenoma detection rate Screening Colorectal adenoma

Impact of pre- and peri-operative risk factors on length of stay and hospital readmission following minimally-invasive partial nephrectomy

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Asian Journal of Urology 2024年第1期11卷 72-79页

作者： Vanessa A.Lukas Rahul Dutta Ashok K.hemal Matvey Tsivian Timothy E.Craven nicholas A.Deebel David D.Thiel Ram Anil Pathak Brigham and Women's hospital Division of UrologyDepartment of Surgery75 Francis StreetBostonMAUSA Atrium health Wake Forest Baptist Medical Center Department of Urology1 Medical Center BlvdWinston-SalemNCUSA Mayo Clinic Florida Department of Urology4500 San Pablo RoadJacksonvilleFLUSA

Objective:We conducted an analysis of the American College of Surgeons National Surgical Quality Improvement Program database for minimally-invasive partial nephrectomy cases reported with the goal to identify pre-and peri-operative variables associated with length of stay(LOS)greater than 3 days and readmission within 30 ***:Records from 2008 to 2018 for“laparoscopy,surgical;partial nephrectomy”for prolonged LOS and readmission cohorts were *** analysis with Chi-square,t-tests,and multivariable logistic regression analysis with odds ratios(ORs),p-values,and 95%confidence intervals assessed statistical ***:Totally,20306 records for LOS greater than 3 days and 15854 for readmission within 30 days were *** and multivariable analysis exhibited similar *** LOS greater than 3 days,undergoing non-elective surgery(OR=5.247),transfusion of greater than four units within 72 h prior to surgery(OR=5.072),pre-operative renal failure or dialysis(OR=2.941),and poor pre-operative functional status(OR=2.540)exhibited the strongest statistically significant *** hospital readmission within 30 days,loss in body weight greater than 10%in 6 months prior to surgery(OR=2.227)and bleeding disorders(OR=2.081)exhibited strongest statistically significant ***:Multiple pre-and peri-operative risk factors are independently associated with prolonged LOS and hospital readmission within 30 days of surgery using the American College of Surgeons National Surgical Quality Improvement Program *** the risks factors that can potentially be improved prior to minimally-invasive partial nephrectomy is crucial to informing patient selection,optimization strategies,and patient education.

关键词： Minimally-invasive partial nephrectomy The American College of Surgeons National Surgical Quality Improvement Program Lengthof stay hospital readmission

鼻咽癌DNA倍体、增殖指数对预后的预测意义(英文)

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癌症 2002年第6期21卷 644-650页

作者：马骏 nicholas h.a.terry 林素暇 NaluninPatel 麦海强洪明晃卢泰祥崔念基闵华庆中山大学肿瘤防治中心鼻咽科广东广州510060 中山大学肿瘤防治中心病理科广东广州510060 DepartmentofExpRadiationOncology M.D.AndersonCancerCenterUniversityofTexas 中山大学肿瘤防治中心放疗科广东广州510060

背景与目的:放射治疗是鼻咽癌的基本治疗方法,改变分割次数放疗及化学治疗已成为晚期鼻咽癌综合治疗方案的一部份,但是,已知的预后因素在预测鼻咽癌治疗结果时有较大的偏差,本研究采用流式细胞仪测定鼻咽癌肿瘤细胞DNA含量及增殖指数,... 详细信息

背景与目的:放射治疗是鼻咽癌的基本治疗方法,改变分割次数放疗及化学治疗已成为晚期鼻咽癌综合治疗方案的一部份,但是,已知的预后因素在预测鼻咽癌治疗结果时有较大的偏差,本研究采用流式细胞仪测定鼻咽癌肿瘤细胞DNA含量及增殖指数,确定其能否成为判断预后的参考指标。方法:对1994年至1995年间205例石腊包埋存档的鼻咽癌活检组织块进行DNA倍体、细胞增殖指标包括S-期细胞分数、G2/M期细胞分数及增殖细胞期分数的测定并与相应病人的临床参数及预后进行相关分析。结果:205例检测的标本中,117例肿瘤活检组织符合DNA流式细胞仪会议指南标准,其中35例(30%)为异倍体肿瘤,82例(70%)为二倍体肿瘤,DNA倍体及各增殖指数与年龄、性别、病理类型、T/N分期及临床分期无显著性相关。异倍体肿瘤的S期细胞分数及增殖期细胞分数显著高于二倍体肿瘤,5年无瘤生存率亦存在显著差异(43%verse62%P=0.035)。低、中、高S期细胞分数组及增殖期细胞分数组,5年无瘤生存率分别存在显著性差异(81%verse61%verse21%;77%verse62%verse33%,P=0.000及P=0.048)。低、中、高G2/M期细胞分数组,5年无瘤生存率无明显差异(35%verse58%verse54%,P=0.8617)。结论:DNA倍体、S期细胞分数及增殖细胞分数为鼻咽癌治疗的预后指标,因此,连同临床。

关键词：鼻咽癌 DNA倍体增殖指数预后预测流式细胞仪

Is speciation driven by cycles of mixing and isolation?

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National Science Review 2019年第2期6卷 291-292页

作者： nicholas h.Barton Institute of Science and Technology Austria NSR

he et al.[1] describe genetic divergence between mangrove species that are distributed across the Straits of Malacca. Divergence varies much more across the genome than in a simple null model of strict allopatry. Such heterogeneity (often termed ‘genomic islands of speciation’) can be generated by population structure:populations that exchange genes at a low rate will

关键词： Rev