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Single-pilot operations in commercial flight:Effects on neural activity and visual behaviour under abnormalities and emergencies

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Chinese Journal of Aeronautics 2024年第8期37卷 277-292页

作者： Qinbiao LI Chun-Hsien CHEN Kam K.H.ng Xin YUAN cho Yin YIU Human Factors and Ergonomics Laboratory Department of Aeronautical and Aviation EngineeringThe Hong Kong Polytechnic UniversityHong Kong Special Administrative Region 100872China School of Mechanical&Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore

With cutting-edge technologies and considering airline human-resource-saving,a single pilot in commercial jets could be technically *** changes in captains’natural behaviours are initially required to comprehend the specific safe human performance envelope for safeguarding single-pilot flight,particularly in high-risk *** paper investigates how captains’performance transforms for fixing emergencies when operating from Dual-Pilot Operations(DPO)to Single-Pilot Operations(SPO)through a physiological-based *** pilots flew an emergency-included flight with/without first officers’*** neural activities and scanning behaviours were recorded using a 32-channel Electroencephalogram(EEG)and glasses-based eye tracker,with the observation and post-experiment questionnaires to evaluate the flight operations and pilots’*** alone,there was a significantly increased cortical activity in h and b waves over the frontal,parietal,and temporal lobes during the more complicated emergencies,and pilots focused less on the primary flight display while spending significantly more time scanning the other *** physiological fluctuating patterns associated with risky operations in SPO were highlighted by cross-correlating multimodal *** experimental-based noteworthy insights may wish to inform commercial SPO measures to lessen the persistent physiological fluctuation,assisting airlines in creating SPO-oriented intelligent flight systems to give captains adequate support for assuring safer air transportation.

关键词： Aviation engineering Single pilot operations Behaviour changes Eye tracker Electroencephalogram

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Endoscopic ultrasound-guided tissue sampling induced pancreatic duct leak resolved by the placement of a pancreatic stent:A case report

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World Journal of Clinical Cases 2024年第9期12卷 1677-1684页

作者： Ki-Hyun Kim Chang Hwan Park Eunae cho Yohan Lee Department of Internal Medicine Chonnam National University HospitalGwangju 61469South Korea Department of Gastroenterology Chonnam National University HospitalGwangju 61469South Korea

BACKGROUND Pancreatic ductal leaks complicated by endoscopic ultrasonography-guided tissue sampling(EUS-TS)can manifest as acute *** SUMMARY A 63-year-old man presented with persistent abdominal pain and weight ***:Laboratory findings revealed elevated carbohydrate antigen 19-9(5920 U/mL)and carcinoembryonic antigen(23.7 ng/mL)*** resonance imaging of the pancreas revealed an approximately 3 cm ill-defined space-occupying lesion in the inferior aspect of the head,with severe encasement of the superior mesenteric *** ductal adenocarcinoma was confirmed after pathological examination of specimens obtained by EUS-TS using the fanning *** and outcomes:The following day,the patient experienced severe abdominal pain with high amylase(265 U/L)and lipase(1173 U/L)*** tomography of the abdomen revealed edematous wall thickening of the second portion of the duodenum with adjacent fluid collections and a suspicious leak from either the distal common bile duct or the main pancreatic duct in the *** retrograde cholangiopancreatography revealed dye leakage in the head of the main pancreatic ***,a 5F 7 cm linear plastic stent was deployed into the pancreatic duct to divert the pancreatic *** patient’s abdominal pain improved immediately after pancreatic stent insertion,and amylase and lipase levels normalized within a *** chemotherapy was then *** Using the fanning method in EUS-TS can inadvertently cause damage to the pancreatic duct and may lead to clinically significant *** a pancreatic stent may immediately resolve acute pancreatitis and shorten the waiting time for curative *** using the fanning method during EUSTS,ductal structures should be excluded to prevent pancreatic ductal leakage.

关键词： Endoscopic ultrasound-guided tissue sampling Pancreatitis Pancreatic duct leak Pancreatic stent Case report

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AN APPROACH TO ANALYSIS OF SIngLE PIER BASED ON THE VARIATIONAL PRINCIPLE IN MULTI-LAYERED SOIL

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Acta Mechanica Solida Sinica 2001年第3期14卷 275-282页

作者： ng Shiu cho Department of Civil Enginddring The Hong Kong University of Science and TechnologyClearwaler BayHong Kong

In this study, a variational approach to the settlement analysisof an axially loaded pier em- bedded in a multi-layered soil profileis presented. In this method, the soil profile and the embedded pierare divided into a number of sub-layers according to the actualnumber o soil layers observed in the field. The displacement shapefunction of each soil layer is given as a product of an exponentialequation along the pier depth and the Bessel's solution in the radialdirection.

关键词： pier pile settlement

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COUPLED VIBRATION OF STRUCTURAL THIN-WALLED CORES

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Acta Mechanica Solida Sinica 2000年第1期13卷 81-88页

作者： Shiu cho ng J.S.Kuang Department of Civil Engineering Hong Kong University of Science and Technology

This paper presents an analysis of the coupled vibration of asymmetric core structures in tall buildings. The governing equation of free vibration and its corresponding eigenvalue problem, which is a set of equations for laterally flexural vibrations in two different directions coupled by a warping-St. Venant torsional vibration, are derived. Based on the Calerkin method, a generalized approximate method is developed for the analysis of coupled vibration and thus proposed for determining the natural frequencies and mode shapes of the structure in triply-coupled vibration. The results of the proposed method for the example structure show good agreement with those of the FEM analysis. The proposed method has been shown to provide a simple and rapid, yet accurate, means for coupled vibration analysis of core structures.

关键词： coupled vibration analysis asymmetric core structure Galerkin method natural frequency mode shape

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全膝關節置換術後硬膜外嗎啡的鎮痛效果研究

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镜湖医学 2024年第1期24卷 17-19页

作者：冼東鋒吳朝興廖婧吳俊晞吳達星曹麗勤澳門鏡湖醫院麻醉科中国

目的本文對全膝關節置換術後病人硬膜外單次給予嗎啡的鎮痛效果進行了研究。方法研究資料來自澳門鏡湖醫院,2021年4月~2022年8月60例全膝關節置換手術病人隨機分到試驗組(腰硬聯合麻醉:單次蛛網膜下腔注射0.5%布比卡因2-3ml+硬膜外注射... 详细信息

目的本文對全膝關節置換術後病人硬膜外單次給予嗎啡的鎮痛效果進行了研究。方法研究資料來自澳門鏡湖醫院,2021年4月~2022年8月60例全膝關節置換手術病人隨機分到試驗組(腰硬聯合麻醉:單次蛛網膜下腔注射0.5%布比卡因2-3ml+硬膜外注射嗎啡2mg)和對照組(單次蛛網膜下腔注射0.5%布比卡因2~3ml),兩組患者術中均行關節周圍浸潤。記錄患者術後0~6h、6~12h、12~24h、24~36h、36~48h的NRS(numerical rating scale)疼痛評分以及是否發生瘙癢、尿瀦留、噁心嘔吐、呼吸抑制。結果與對照組相比,試驗組術後48小時内NRS評分≧4分發生率較低(20.0%[6/30]vs.46.7%[14/30]P=0.028),試驗組尿瀦留發生率高於對照組(36.7%[11/30]vs.6.7%[2/30]P=0.005)。結論硬膜外小劑量嗎啡可以減少全膝關節置換術後病人中至重度疼痛發生率,但病人術後尿瀦留風險增加。

关键词：硬膜外鎮痛嗎啡全膝關節置換術

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Late retroperitoneal recurrence of hepatocellular carcinoma 12 years after initial diagnosis

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World Journal of Gastroenterology 2010年第17期16卷 2187-2189页

作者： Tiffany cho-Lam Wong Ka-Fai To Simon See-Ming Hou Sidney Kam-Hung Yip Chi-Fai ng Department of Surgery Prince of Wales HospitalThe Chinese University of Hong Kong Department of Anatomical and Cellular Pathology The Chinese University of Hong Kong

Hepatocellular carcinoma (HCC) is an aggressive tumor with poor long-term ***,we present an unusual patient with a solitary recurrence of HCC in the right kidney 12 years after the initial *** illustrates the importan... 详细信息

关键词： Hepatocellular carcinoma Late recurrence Metastasis Retroperitoneal

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What do we know about housing supply?The case of Hong Kong SAR

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Economic and Political Studies 2020年第1期8卷 6-20页

作者： Charles Ka Yui Leung Joe cho Yiu ng Edward Chi Ho Tang Department of Economics and Finance City University of Hong KongHong Kong SARChina Department of Economics and Finance Hong Kong Shue Yan UniversityHong Kong SARChina

The house price in the Hong Kong SAR of China is well-known to be‘unaffordable’.This paper relates the macroeconomy with the housing market of Hong Kong and argues that the housing supply plays a vital role in explaining the *** paper also shows that there are some practical challenges in understanding the housing supply of Hong Kong,including the potentially complicated ownership structure of real estate *** the discussion centres on the situation of Hong Kong,its lesson may also apply to housing markets in other small open economies.

关键词： New housing supply oligopolistic market structure ownership structure real estate development real estate developers

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Association between the Different Phenotypes of Polycystic Ovary Syndrome and the Outcome in in Vitro Fertilization at Human Reproductive Center Paul et Chantal Biya-Yaoundé

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Open Journal of Obstetrics and Gynecology 2024年第1期14卷 18-28页

作者： ngono Akam Vanina ngah Minala Belinga Etienne Belinga Etienne Mpono Pascale Nyada Serges Onana Y. Kasia cho Joselyne Kasia Florence Adjessa Abega Kasia Jean Marie Gynaecological Endoscopic Surgery and Human Reproductive Teaching Hospital Yaoundé Cameroon Department of Gynecology and Obstetrics Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon

Background: In Vitro Fertilization/Intracytoplasmic Sperm Injection (IVF/ICSI) represents the final step in the management of Polycystic Ovarian Syndrome (PCOS). Our objective was to study the association between PCOS phenotypes and IVF/ICSI results in women admitted to Gynaecological Endoscopic Surgery and Human Reproductive Teaching Hospital (CHRACERH). Material and Method: We carried out a cohort study with historical-prospective data collection over a period of seven years (January 2016 to March 2023) at Chracerh. PCOS patients were subdivided into 4 subgroups A, B, C and D. Results: We recruited 128 patients including 64 PCOS patients divided into four phenotypes and 64 non-PCOS patients constituting the control group. Phenotype D without hyperandrogenism had used the lowest dose of gonadotropins, i.e. 1939.7 ± 454.3 IU, and had produced a greater quantity of estradiol on the day ovulation was triggered (6529.8 ± 4324.8 ng/ml). The average number of punctured follicles and mature oocytes were higher in the phenotype D group. Ovarian hyperstimulation syndrome (OHSS) occurred mainly in phenotype D (3/35), with an estimated prevalence of 2.3%. The fertilization rate seemed lower in the hyperandrogenic phenotypes A, B, C compared to the group without hyperandrogenism without significant difference (p = 0.461). The biological pregnancy rate and live birth rate were comparable between the different groups. Conclusion: Phenotype D used less dose of gonadotropins. Biological pregnancy and live birth rates were comparable between the different phenotypes.

关键词： Phenotype Polycystic Ovarian Syndrome IVF/ICSI Prognosis CHRACERH

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The combined role of MRI prostate and prostate health index in improving detection of significant prostate cancer in a screening population of Chinese men

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Asian Journal of Andrology 2023年第6期25卷 674-679页

作者： Peter KF Chiu Thomas YT Lam Chi-Fai ng Jeremy YC Teoh Carmen CM cho Hiu-Yee Hung Cindy Hong Monique J Roobol Winnie CW Chu Samuel YS Wong Joseph JY Sung SH Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong Kong SARChina The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong Kong SARChina Department of Imaging and Interventional Radiology The Chinese University of Hong KongHong Kong SARChina Erasmus MC Cancer Institute Erasmus Medical UniversityRotterdam 3015The Netherlands Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore

Using prostate-specific antigen(PSA)for prostate cancer(PCa)screening led to overinvestigation and overdiagnosis of indolent *** aimed to investigate the value of prostate health index(PHI)and magnetic resonance imaging(MRI)prostate in an Asian PCa screening *** aged 50–75 years were prospectively recruited from a community-based PSA screening *** with PSA 4.0–10.0 ng ml^(−1) had PHI result *** prostate was offered to men with PSA 4.0–50.0 ng ml−1.A systematic prostate biopsy was offered to men with PSA 4.0–9.9 ng ml^(−1) and PHI≥35,or PSA 10.0–50.0 ng ml^(−1).Additional targeted prostate biopsy was offered if they had PI-RADS score≥*** significant PCa(csPCa)was defined as the International Society of Urological Pathology(ISUP)grade group(GG)≥2 or ISUP GG 1 with involvement of≥30%of total systematic *** total,12.8%(196/1536)men had PSA≥4.0 ng ml^(−1).Among 194 men with PSA 4.0–50.0 ng ml^(−1),187(96.4%)received MRI *** them,28.3%(53/187)had PI-RADS≥3 ***,7.0%(107/1536)men were indicated for biopsy and 94.4%(101/107)men received *** the men received biopsy,PCa,ISUP GG≥2 PCa,and csPCa was diagnosed in 42(41.6%),24(23.8%),and 34(33.7%)men,*** with PSA/PHI pathway in men with PSA 4.0–50.0 ng ml^(−1),additional MRI increased diagnoses of PCa,ISUP GG≥2 PCa,and csPCa by 21.2%(from 33 to 40),22.2%(from 18 to 22),and 18.5%(from 27 to 32),*** benefit of additional MRI was only observed in PSA 4.0–10.0 ng ml^(−1),and the number of MRI needed to diagnose one additional ISUP GG≥2 PCa was 20 in PHI≥35 and 94 in PHIng ml^(−1) avoided unnecessary biopsy with the use of PHI and MRI.A screening algorithm with PSA,PHI,and MRI could effectively diagnose csPCa while reducing unnecessary *** benefit of MRI prostate was mainly observed in PSA 4.0–9.9 ng ml^(−1) and PHI≥35 *** was an important risk stratification step for PCa

关键词： magnetic resonance imaging prostate prostate cancer prostate health index prostate-specific antigen screening

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Acupuncture for olfactory dysfunction in infected COVID-19 patients:Study protocol for a randomized,sham-controlled clinical trial

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Journal of Traditional Chinese Medical Sciences 2023年第1期10卷 118-124页

作者： Linda Lidan Zhong Yiping Wong choryin Leung Chifung choy Hungwai cho Alan Yatlun Wong Kaming Yau Rowena Howwan Wong Bacon Fungleung ng Zhaoxiang Bian School of Chinese Medicine Hong Kong Baptist UniversityHong Kong 999077China Tseung Kwan O Hospital Hong Kong Hospital AuthorityHong Kong 999077China Department of Ear Nose and Throat(ENT)Tseung Kwan O HospitalHong Kong 999077China Haven of Hope Chinese University of Hong Kong Chinese Medicine Clinic Cum Training and Research Centre(Sai Kung District)Hong Kong 999077China Chinese Medicine Department Hong Kong Hospital AuthorityHong Kong 999077China

Background:Olfactory dysfunction(OD)is a common symptom of Corona Virus Disease 2019(COVID-19).It is defined as the reduced or distorted ability to smell during sniffing(orthonasal olfaction)and represents one of the early symptoms in the clinical course of COVID-19 infection.A large online questionnaire-based survey has shown that some post-COVID-19 patients had no improvement 1 month after discharge from the ***:To explore the efficacy of acupuncture for OD in COVID-19 infected patients and to determine whether acupuncture could have benefits over sham acupuncture for OD in post-COVID-19 ***:This is a single-blind,randomized controlled,cross-over *** plan to recruit 40 post-COVID-19 patients with smell loss or smell distortions lasting for more than 1 *** patients will be randomly allocated to the intervention group(real acupuncture)or the control group(sham acupuncture)at a 1:1 *** patient will receive 8 sessions of treatment over 4 weeks(Cycle 1)and a 2-week *** the follow-up,the control group will be subjected to real acupuncture for another 4 weeks(Cycle 2),and the real acupuncture group will undergo the 4-week sham *** primary outcomes will be the score changes on the questionnaire of olfactory functioning and olfaction-related quality of life at week 6,8,12,and 14 from the *** secondary outcomes will be the changes in the olfactory test score at week 6 and 12 from the baseline measured by using the Traditional Chinese version of the University of Pennsylvania Smell Identification Test(UPSIT-TC).Discussion:The results of this trial will help to determine the effectiveness of acupuncture for OD in post-COVID-19 *** may provide a new treatment option for patients.

关键词： Olfactory dysfunction Smell loss Smell distortions COVID-19 Acupuncture Chinese medicine UPSIT

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