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Femtosecond laser-assisted astigmatic keratotomy: a review

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Eye and Vision 2018年第1期5卷 59-69页

作者： john s.M.Chang Department of Ophthalmology Hong Kong Sanatorium&Hospital8/FLi Shu Pui BlockPhase II2 Village RoadHappy ValleyHong KongChina

Background:Astigmatic keratotomy(AK)remains an accessible means to correct surgically induced or naturally occurring *** advantages of femtosecond laser-assisted astigmatic keratotomy(FsAK)over conventional methods have been recognized *** text:This review evaluates the efficacy,complications,and different methods of FsAK for correction of astigmatism in native eyes and those that underwent previous penetrating keratoplasty(PKP).The penetrating and intrastromal FsAK(IFsAK)techniques can reduce post-keratoplasty astigmatism by 35.4%to 84.77%and 23.53%to 89.42%,*** native eyes,the penetrating and IFsAK techniques reduce astigmatism by 26.8%to 58.62%and 36.3%to 58%respectively,implying that the magnitude of the astigmatic reduction is comparable between the two FsAK ***,IFsAK offers the additional advantages of almost no risk of infection,wound gape,and epithelial *** use of nomograms,anterior-segment optical coherence tomography,and consideration of posterior cornea and corneal biomechanics are helpful to enhance the efficacy and safety of *** complications of FsAK in eyes that underwent PKP include overcorrection,visual loss,microperforations,infectious keratitis,allograft rejection,and *** reported difficulties in native eyes include overcorrection,anterior gas breakthrough,and suction ***:In eyes that underwent PKP,FsAK effectively reduces high regular or irregular astigmatism,with rare and manageable ***,the drawbacks of the procedure include the potential loss of visual acuity and low *** native eyes undergoing femtosecond laser-assisted cataract surgery,IFsAK is a good choice to correct low astigmatism(s).The refractive effect of astigmatism from the posterior cornea needs to be considered in the nomograms for native eyes undergoing refractive cataract *** further improve the efficacy of FsAK,more large-scale ra

关键词： Femtosecond laser-assisted astigmatic keratotomy Post-keratoplasty astigmatism Astigmatism correction Refractive surgery

Influence of sulfides on the tribological properties of composites produced by pulse electric current sintering

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International Journal of Minerals,Metallurgy and Materials 2014年第1期21卷 95-103页

作者： seung ho Kim Department of Electronics Engineering Dankook University

self-lubricating A1203-15wt% ZrO2 composites with sulfides, such as molybdenum disulfide （Mos2） and tungsten disulfide （Wsz） serving as solid lubricants, were fabricated by using the pulse electric current sintering （PECs） technique. The coefficient of friction （COF） of the A1203-15wt% ZrO2 composite without/with sulfides was in the range of 0.37-0.48 and 0.27-0.49, respectively. As the amoant of sul- fides increased, the COF and the wear rate decreased. The reduction in COF and wear rate of the sulfide-containing composite is caused by a reduction in shear stresses between the specimen and the tribological medium due to the formation of a lubricating film resulting from the lamellar structure of sulfides located on the worn surface.

关键词： ceramic composites coefficient of friction solid lubricants sulfides wear of materials

The“Tears of the Virgin”at Lakes Entrance,southeast Australia were made by the intertidal barnacle Chthamalus antennatus(Cirripedia:Thoracica)and cyanobacteria

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Integrative Zoology 2017年第3期12卷 228-236页

作者： john s.BUCKERIDGE William A.NEWMAN Earth&Oceanic systems Group RMIT UniversityMelbourneVictoriaAustralia scripps Institution of Oceanography La JollaCaliforniaUSA

Curious eroded depressions,most resembling an eye shedding an elongate tear,are found in gently sloping,intertidal,carbonate-rich arenite outcropping on the sea coast near Lakes Entrance,Victoria,southeast *** depressions,known locally as“Tears of the Virgin,”are evidently formed by multiple generations of a barnacle,Chthamalus antennatus Darwin,1854 in association with *** the round part of a depression offers the barnacle a modicum of protection from impacts during high tides,it is also partially inhabited by cyanobacteria,which extend into and tend to fill the elongate *** such,this appears to be the first case of mutualism between a higher invertebrate and cyanobacteria,with the cyanobacteria reducing the barnacle’s risk of desiccation while receiving metabolic wastes from it during low *** is also the first record of a balanomorph barnacle eroding calcareous arenite beneath its shell,the net effect of which would be expected to reduce its adhesion to the ***,the siliceous residue,resulting from the barnacle’s dissolution of the more than 80%of the calcite-rich sedimentary rock,is sequestered in delicate folds on the inside of the shell wall as it grows.A brief review of cirripedes capable of excavation includes the first photographic documentation of excavation of a mollusc shell by a verrucomorph.

关键词： burrowing barnacles Chthamalus antennatus Cirripedia cyanobacteria mutualism

Optimizing oncolytic virus design:a“swiss army knife”approach to create a systemically delivered therapeutic

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signal Transduction and Targeted Therapy 2024年第5期9卷 1791-1792页

作者： Carolina s.Ilkow john Cameron Bell Ottawa hospital Research Institute 501 Smyth RoadOttawaONK1H 8L6Canada

In a recent paper published in Nature Biotechnology,Chen et al.1 describe a multiplex oncolytic virus platform that coupled with adoptive T cell therapy could solve the problem of repeat,systemic delivery of virus based *** is widely accepted that multi-targeted therapeutic approaches attacking several facets of cancer biology are necessary to effectively deal with the tumor heterogeneity that exists within and between patients.

关键词： therapeutic al. targeted

self-aligned on-chip coupled photonic devices using individual cadmium sulfide nanobelts

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Nano Research 2020年第5期13卷 1413-1418页

作者： Jacob s.Berger ho-seok Ee Mingliang Ren Daksh Agarwal Wenjing Liu Ritesh Agarwal 3231 Walnut st. Department of Materials Science and EngineeringUniversity of PennsylvaniaPhiladelphia 19104USA

Nanowires(NWs)and nanobelts(NBs)have been widely studied and fabricated into a variety of nanoscale devices such as light emitting diodes(LEDs),lasers and *** unique materials have attracted sustained attention due to their novel properties,ease of growth,and the ability to fabricate highly engineered ***,their widespread application remains hindered due to the difficulty in integrating multiple NWs or NBs together for more complex *** of multiple NWs and NBs together on the same chip can enable the coupling of different devices to help realize complex on-chip architectures such as photonic integrated circuits or nanoscale diagnostic tools,which currently require outcoupling using larger *** this letter we report the coupling of on-chip NB LEDs and photodetectors using a single,precisely self-aligned,cadmium sulfide(Cds)NB fabricated on a silicon-on-insulator(sOI)*** generated by the Cds NB is waveguided and measured across the self-aligned device and demonstrates an on/off ratio of 10^2-10^*** work describes a new method for fabricating and integrating more complex nanoscale devices that can enable advances in areas such as on-chip optical computational components and nanoscale optical biodiagnostics.

关键词： cadmium sulfide nanobelts nanowires light emitting diode optical interconnects

Prostate health index can stratify patients with Prostate Imaging Reporting and Data system score 3 lesions on magnetic resonance imaging to reduce prostate biopsies

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Asian Journal of Andrology 2024年第1期26卷 20-24页

作者： john shung-Lai Leung Wai-Kit Ma Brian sze-ho ho stacia Tsun-Tsun Chun Rong Na Yongle Zhan Chi-Yuen Ng Chi-ho Ip Ada Tsui-Lin Ng Yiu-Chung Lam Division of Urology Department of SurgeryQueen Mary HospitalUniversity of Hong KongHong KongChina Division of Urology Department of SurgeryPrincess Margaret HospitalHongKongChina

We aim to evaluate prostate health index as an additional risk-stratification tool in patients with Prostate Imaging Reporting and Data system score 3 lesions on multiparametric magnetic resonance *** with biochemical or clinical suspicion of having prostate cancer who underwent multiparametric magnetic resonance imaging in two tertiary centers(Queen Mary hospital and Princess Margaret hospital,hong Kong,China)between January 2017 and June 2022 were ***-magnetic resonance imaging fusion biopsies were performed after prostate health index *** who only had Prostate Imaging Reporting and Data system score 3 lesions were further stratified into four prostate health index risk groups and the cancer detection rates were *** of the 747 patients,47.3%had Prostate Imaging Reporting and Data system score 3 lesions *** detection rate of clinically significant prostate cancer in this group was 15.0%.The cancer detection rates of clinically significant prostate cancer had statistically significant differences:5.3%in prostate health indexstate health index 25.0-34.9,17.9%in prostate health index 35.0-54.9,and 52.6%in prostate health index≥55.0(Ps,26.9%could have avoided a biopsy with a prostate health indexse of a 5.3%risk of missing clinically significant prostate *** health index could be used as an additional risk stratification tool for patients with Prostate Imaging Reporting and Data system score 3 *** could be avoided in patients with low prostate health index,with a small risk of missing clinically significant prostate cancer.

关键词： biopsy fusion biopsy magnetic resonance imaging prostate cancer prostate health index

CR deformations for rational homogeneous surface singularities

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science China Mathematics 2005年第Z1期48卷 74-85页

作者： john s.Bland Department of Mathematics University of Toronto TorontoM5S 3G3Canada

In this paper, we will present a CR-construction of the versal deformations of the singularities Vn (～- )C2/Zn, n ∈ {2, 3, 4,…} defined by the immersions of C2 into Cn+1Xn: (z,w) → (zn,zn-1w,…,zwn-1,wn).

关键词： CR deformation, obstruction.

Catalyst-Packed Non-Thermal Plasma Reactor for Removal of Nitrogen Oxides

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Plasma science and Technology 2003年第1期5卷 1603-1608页

作者： V.Ravi YoungsunMok B.s.Rajanikanth ho-ChulKang DepartmentofHighVoltageEngineering IndianInstituteofScienceBangalore-560012India DepartmentofChemicalEngineering ChejuNationalUniversityAraCheju690-756SouthKorea

A single-stage plasma-catalytic reactor in which catalytic materials werepacked was used to remove nitrogen oxides. The packing material was scoria being made of variousmetal oxides including Al_2O_3, MgO, TiO_2, etc. scoria was able to act not only as dielectricpellets but also as a catalyst in the presence of reducing agent such as ethylene and *** plasma discharge, scoria did not work well as a catalyst in the temperature range of 100 ℃to 200 ℃, showing less than 10% of NOx removal efficiency. When plasma is produced inside thereactor, the NOx removal efficiency could be increased to 60% in this temperature range.

关键词： plasma catalyst scoria nitrogen oxides removal

Public Health Control Measures for the Co-circulation of Influenza and sARs-CoV-2 During Influenza seasons

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China CDC weekly 2022年第2期4卷 22-26页

作者： john s Tam Yuelong shu Department of Applied Biology and Chemical Technology Hong Kong Polytechnic UniversityHong KongChina Asia Pacific Alliance for the Control of Influenza(APACI) South MelbourneVICAustralia s.hool of Public Health(shenzhen) Sun Yat-sen UniversityGuangzhouGuangdongChina

sEAsONAL INFLUENZA IN THE MIDsT OF COVID-19 The World Health Organization(Who)named the disease caused by severe acute respiratory syndrome coronavirus 2(sARs-CoV-2)as coronavirus disease 2019(COVID-19)and declared the outbreak a Public Health Emergency of International Concern(PHEIC)on January 30,2020 and a pandemic on March 11,***,there have been 239,437,517 confirmed cases of COVID-19 reported to Who,including 4,879,235(2.1%)deaths as of October 15,2021(1).The COVID-19 pandemic continues to cause an unparalleled impact on global public health security and economic well-being in the context of previous influenza pandemics as well as other emerging infectious diseases in history(2).As the epidemiology,clinical presentations,and control measures for sARs-CoV-2 and influenza share many features,there is a need to develop strategies to address additional challenges arising in the continued surveillance,prevention,and clinical management of influenza in conjunction with COVID-19 pandemic responses.

关键词： epidemiology prevention acute