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Validation of an Algorithm based on parameters in Non-Contrast Computerized Tomogram for selection of upper ureteral stone for shock wave lithotripsy

Validation of an Algorithm based on parameters in Non-Contra...

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第十五届全国泌尿外科学术会议

作者： Chi-Fai Ng annie wong Deyond Siu Kak-tak wong Eddie Chan Department of Surgery and Department of Diagnostic Radiology and Organ Imaging The Chinese University of Hong Kong

Introduction and Objective: There is increase recognition of the role of various parameters measured by non-contrast computerized tomogram (NCCT) in predicting treatment outcomes of urinary stone by shockwave lithotripsy (SWL). In our previous analysis, a clinical algorithm, based on stone volume (SV), mean stone density (MSD) and skin-to-stone distance (SSD), was formulated. (J Urol 2007;177 supp: A1316) Therefore, we would like to use our subsequent patients to validate the usefulness of this algorithm. Methods: After our first part of study, a further prospective collection of data from patients diagnosed to have solitary upper ureteral stone by NCCT and received primary SWL was performed. The primary outcome was the stone free rate at 3-month after one session of SWL by Sonolith 4000+. Pre-treatment NCCT were reviewed by a single radiologist with SV, MSD and SSD measured. These patient parameters were then applied into our algorithm to assess its validity in predicting treatment outcome. Results: 37 patients (24 males and 13 females) were recruited. The overall stone free rate was 45.9%. By applying the algorithms, for patients with either SV ≤ 0.2cc or MSD ≤600 or SDep ≤ 85mm, the stone free rate was 52.2% (95% CI 31.7%, 72.7%). For those patients without any favourable factors, the stone free rate was 35.7% (95% CI 10.6%, 60.8%). Although the difference was not statistically significant, a trend of difference can still be observed in this small sample. Conclusions: Clinical algorithm based on the measurement of stone volume, mean stone density and skin to stone distance from NCCT can help to predict the treatment outcome of SWL in upper ureteral stone.

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The electroweak monopole–antimonopole pair in the standard model

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Communications in Theoretical Physics 2024年第3期76卷 113-119页

作者： Dan Zhu Khai-Ming wong Guo-Quan wong School of Physics Universiti Sains Malaysia11800 USMPenangMalaysia

We present the first numerical solution that corresponds to a pair of Cho–Maison monopoles and antimonopoles(MAPs) in the SU(2) × U(1) Weinberg–Salam(WS) *** monopoles are finitely separated,while each pole carries a magnetic charge ±4π/*** positive pole is situated in the upper hemisphere,whereas the negative pole is in the lower *** Cho–Maison MAP is investigated for a range of Weinberg angles,0.4675≤ tan θ_(W)≤10,and Higgs self-coupling,0 ≤ β ≤ *** magnetic dipole moment(μm) and pole separation(d_(z)) of the numerical solutions are calculated and *** total energy of the system,however,is infinite due to point singularities at the locations of monopoles.

关键词： magnetic monopole Cho-Maison monopole Weinberg-Salam model

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Synthetic brochosomes:Design,synthesis,and applications

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Nano Research 2024年第2期17卷 734-742页

作者： Lin Wang Jinsol Choi Tak-Sing wong Department of Mechanical Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA Materials Research Institute The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Biomedical Engineering The Pennsylvania State UniversityUniversity ParkPA 16802USA

Brochosomes,which are nanoscopic buckyball-shaped granules produced by leafhoppers,are one of the most intricate structures discovered in *** functions of brochosomes have been proposed but only a few have been experimentally validated due to the challenge of fabricating their synthetic *** in micro-and nanofabrication have recently led to the emergence of synthetic brochosomes,opening up new possibilities for innovative *** review explores the early discovery of natural brochosomes and their geometrical features,followed by the recent progress in fabricating synthetic brochosomes and their *** on future applications and challenges in the scalable manufacturing of synthetic brochosomes are discussed.

关键词： synthetic brochosomes leafhopper antireflection superhydrophobicity surface-enhanced Raman scattering photocatalyst energy harvesting

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Artificial intelligence analysis of videos to augment clinical assessment:an overview

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Neural Regeneration Research 2024年第4期19卷 717-718页

作者： David C.wong Stefan Williams University of Leeds Leeds Teaching Hospitals Trust LeedsUK

Observation is a fundamental part of the practice of clinical *** of movement is particularly important for the *** such as Parkinson’s disease,multiple sclerosis,stroke,epilepsy,and many others affect a person’s movement in characteristic *** some conditions,changes in the patient’s voice can be included in this-changes in sound caused by changes in the movements of *** clinician’s detection of a characteristic abnormality,and their judgment of its severity,plays a central role in both diagnosis and the assessment of prognosis or response to ***,that practice depends upon a limited resource of experienced *** addition,these experts are limited by human visual judgment,which cannot reliably or precisely detect and measure small or subtle changes in movement(Williams et al.,2023).

关键词： clinical epilepsy diagnosis

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Free-electron crystals for enhanced X-ray radiation

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Light(Science & Applications) 2024年第7期13卷 1299-1309页

作者： Lee Wei Wesley wong Xihang Shi Aviv Karnieli Jeremy Lim Suraj Kumar Sergio Carbajo Ido Kaminer Liang Jie wong School of Electrical and Electronic Engineering Nanyang Technological University50 Nanyang AvenueSingapore 639798Singapore. Solid State Institute and Faculty of Electrical and Computer Engineering Technion–Israel Institute of TechnologyHaifa 3200003Israel. School of Electrical Engineering Fleischman Faculty of EngineeringTel Aviv UniversityTel Aviv 69978Israel Department of Applied Physics Stanford UniversityStanfordCA 94305USA. Science Mathematics and TechnologySingapore University of Technology and Design8 Somapah RoadSingapore 487372Singapore. Electrical and Computer Engineering Department UCLA420 WestwoodLos AngelesCA 90095USA. Physics and Astronomy Department UCLA475 Portola PlazaLos AngelesCA 90095USA. SLAC National Accelerator Laboratory Stanford University2575 Sand Hill RoadMenlo ParkCA 94025USA

Bremsstrahlung—the spontaneous emission of broadband radiation from free electrons that are deflected by atomic nuclei—contributes to the majority of X-rays emitted from X-ray tubes and used in applications ranging from medical imaging to semiconductor chip ***,we show that the bremsstrahlung intensity can be enhanced significantly—by more than three orders of magnitude—through shaping the electron wavefunction to periodically overlap with atoms in crystalline ***,we show how to shape the bremsstrahlung X-ray emission pattern into arbitrary angular emission profiles for purposes such as unidirectionality and ***,we find that these enhancements and shaped emission profiles cannot be attributed solely to the spatial overlap between the electron probability distribution and the atomic centers,as predicted by the paraxial and nonrecoil theory for free electron light *** work highlights an unprecedented regime of free electron light emission where electron waveshaping provides multi-dimensional control over practical radiation processes like *** results pave the way towards greater versatility in table-top X-ray sources and improved fundamental understanding of quantum electron-light interactions.

关键词： overlap attributed arbitrary

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卡泊芬净引起严重可逆性血小板减少

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中国处方药 2005年第2期4卷 75-77页

作者： Julia Lynch annie wong-Beringer 席瑜钦博士

卡泊芬净(Caspofungin)是第一个批准用于抗真菌的一线药物,也被称作棘白菌素.近来被FDA批准其用于治疗曲霉属真菌和念珠菌病的感染.通过阻断真菌细胞壁的重要组分β-(1,3)-D-葡聚糖的合成来抑制念珠菌属真菌的生长.与两性霉素B相比,卡... 详细信息

卡泊芬净(Caspofungin)是第一个批准用于抗真菌的一线药物,也被称作棘白菌素.近来被FDA批准其用于治疗曲霉属真菌和念珠菌病的感染.通过阻断真菌细胞壁的重要组分β-(1,3)-D-葡聚糖的合成来抑制念珠菌属真菌的生长.与两性霉素B相比,卡泊芬净的副作用更轻.但是由于其安全性数据是从总数不足1000例的服用单或多剂量卡泊芬净的患者中统计获得,因此临床医生对其进行持续的用药后监测就极为重要.

关键词：卡泊芬净血小板减少治疗真菌多剂量 FDA批准用药后细胞壁念珠菌属曲霉

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Tribological behavior of lubricant-impregnated porous polyimide

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Friction 2024年第4期12卷 711-725页

作者： Jinbang LI Ningning ZHOU Janet S.S.wong School of Mechanical Engineering and Mechanics Ningbo UniversityNingbo 315211China Beijing Key Laboratory of Long-life Technology of Precise Rotation and Transmission Mechanisms Beijing Institute of Control EngineeringBeijing 100029China Department of Mechanical Engineering Imperial College LondonLondon SW72AZUK

Porous materials impregnated with lubricants can be used in conditions where limited lubricant is *** this work,three porous polyimides(PPI)with different densities were ***(PAO)impregnated PPI(iPPI)discs were rubbed against steel and sapphire *** operando observations of the iPPI-sapphire contacts show that oil is released under an applied load,forming a meniscus around *** at the outlet is created at high sliding *** amount of released oil increases with increasing PPI *** moduli,E*,estimated based on the actual contact size show that trapped oil in iPPIs contributes to load *** higher speeds,tribological rehydration of the contact occurs in low density iPPI,with that E*rises with *** high density PPIs,high speeds give a constantly high E*which is limited by the viscoelastic properties of the PPI network and possibly the rate of oil *** of iPPI-steel contacts is governed by the mechanical properties of the PPI,the flow of the lubricant,and the roughness of the PPI *** low-and medium-density(highly porous,high roughness)PPIs,large amount of oil is released,and lubrication is mainly via lubricant restricted in the contact in the pores and possibly tribological *** high density(low porosity)PPI,with lower roughness,hydrodynamic lubrication is achieved which gives the lowest *** results show that polymeric porous materials for effective lubrication require the optimization of its surface roughness,stiffness,oil flow,and oil retentions.

关键词： polyimide porous material friction mechanism polymer limited lubrication

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Navigating reflux disease after achalasia treatments:Balancing risks and benefits

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World Journal of Gastroenterology 2024年第21期30卷 2740-2743页

作者： Ewen A Griffiths Enoch wong Department of Upper Gastrointestinal Surgery University Hospitals Birmingham NHS Foundation TrustBirmingham B152GWWest MidlandsUnited Kingdom Department of Immunology and Immunotherapy University of BirminghamBirmingham B152TTWest MidlandsUnited Kingdom

The peroral endoscopic myotomy(POEM)procedure has revolutionized the management of achalasia in many centres around the world as it offers patients a minimally invasive endoscopic solution to their dysphagia caused by *** its success in alleviating dysphagia,concerns regarding postoperative gastroesophageal reflux disease have emerged as a pertinent issue which are not fully *** this study,Nabi et al have comprehensively reviewed the topic of the prediction,prevention and management of gastroesophageal reflux after *** is a purely endoscopic procedure which is usually performed without any anti-reflux *** patients may be better served by a laparoscopic Heller’s myotomy and fundoplication and it is important that gastroenterologists and surgeons provide comprehensive risks and benefits of each achalasia treatment option so that patients can decide what treatment is best for *** article by Nabi et al provides a comprehensive review of the current status of this issue to allow these discussions to occur.

关键词： Achalasia Gastro-esophageal reflux disease Laparoscopic heller’s myotomy Peroral endoscopic myotomy Fundoplication

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Transfer of Highest Weight Modules and Small Unipotent Representations

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Acta Mathematica Sinica,English Series 2024年第3期40卷 772-791页

作者： Hai An HE Jing Song HUANG Kayue Daniel wong Department of Mathematics College of SciencesShanghai UniversityShanghai 200444P.R.China Newtouch Center for Mathematics of Shanghai University Shanghai 200444P.R.China Mathematics Research Center School of Science and EngineeringThe Chinese University of Hong KongShenzhen 518172P.R.China

We study the transfer between small special unipotent representations for all equal rank real forms of type E_(6) and E_(7). As a consequence, one can verify these modules are unitarity using the results of Wallach an... 详细信息

关键词： Unipotent representations Wallach representations Transfer of unitary modules

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Short-term outcome of patients with robot-assisted versus open radical prostatectomy:Prince of Wales Hospital, Hong Kong experience

Short-term outcome of patients with robot-assisted versus op...

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第十五届全国泌尿外科学术会议

作者： Lo, Ka-Lun wong, annie Yip, Sidney Ng, Chi-Fai Division of Urology, Department of Surgery, The Chinese University of Hong Kong 003100

Objective: To perform a retrospective review of the short-term outcome of patients with robotic-assisted (RoRP) versus open radical prostatectomy (ORP). Patients and Method: This was a retrospective review of patients...

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