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The multi-dimensional effects of reciprocity on worker effort:evidence from a hybrid field-laboratory labour market experiment

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Economic and Political Studies 2021年第1期9卷 37-67页

作者： Min-taec kim Robert Slonim New South Wales Bureau of Crime Statistics SydneyAustralia Faculty of Arts and Social Sciences University of SydneySydneyAustralia

We examine the gift exchange hypothesis on both the quantity and quality of work using a hybrid field-laboratory labour market *** recruited participants to enter survey data for a well-known charitable *** were paid either a high or low *** find that although the total number of surveys entered did not vary in terms of wages,high wage workers made fewer errors and entered more surveys after controlling for *** further find that for low costs associated with errors,offering a low wage maximises profits;but for higher costs,paying a high‘gift exchange’wage maximises profits.

关键词： Gift exchange reciprocity multi-tasking laboratory field experiments

Friction characteristics of mechanically exfoliated and CVD-grown single-layer MoS_2

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Friction 2018年第4期6卷 395-406页

作者： Dinh Le Cao ky Bien-Cuong TRAN KHAC Chinh Tam LE Yong Soo kim Koo-Hyun CHUng School of Mechanical Engineering University of Ulsan Department of Physics and Energy Harvest Storage Research Center University of Ulsan

In this work, the friction characteristics of single-layer MoS2 prepared with chemical vapor deposition （CVD） at three different temperatures were quantitatively investigated and compared to those of single-layer MoS2 prepared using mechanical exfoliation. The surface and crystalline qualities of the MoS2 specimens were characterized using an optical microscope, atomic force microscope （AFM）, and Raman spectroscopy. The surfaces of the MoS2 specimens were generally flat and smooth. However, the Raman data showed that the crystalline qualities of CVD-grown single-layer MoS2 at 800 ℃ and 850 ℃ were relatively similar to those of mechanically exfoliated MoS2 whereas the crystalline quality of the CVD-grown single-layer MoS2 at 900 ℃ was lower. The CVD-grown single-layer MoS2 exhibited higher friction than mechanically exfoliated single-layer MoS2, which might be related to the crystalline imperfections in the CVD-grown MoS2. In addition, the friction of CVD-grown single-layer MoS2 increased as the CVD growth temperature increased. In terms of tribological properties, 800 ℃ was the optimal temperature for the CVD process used in this work. Furthermore, it was observed that the friction at the grain boundary was significantly larger than that at the grain, potentially due to defects at the grain boundary. This result indicates that the temperature used during CVD should be optimized considering the grain size to achieve low friction characteristics. The outcomes of this work will be useful for understanding the intrinsic friction characteristics of single-layer MoS2 and elucidating the feasibility of single-layer MoS2 as protective or lubricant layers for micro- and nano-devices.

关键词： atomic force microscope chemical vapor deposition grain boundary friction mechanical exfoliation MoS2

Sudden Cardiac Death with Myocardial Infarction after Free-flap Lower Extremity Reconstruction

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Chinese Medical Journal 2017年第4期130卷 499-500页

作者： Won Ha ky. Nam kim Soe Hee Ann Chi Sun Yoon Department of Plastic and Reconstructive Surgery Ulsan University Hospital University of Ulsan College of Medicine Utsan Korea Department of Plastic and Reconstructive Surgery Konyang University Hospital University of Konyang College of Medicine DaeJon Korea Department of Cardiology Ulsan University Hospital University of Ulsan College of Medicine Ulsan Korea

To the Editor： Free-flap reconstructions involve factors that can increase the risk of myocardial infarction （MI; e.g., the intraoperative use of a vasoactive agent, body temperature maintenance, and postoperative administration of fluid therapy and/or antithrombotic drugs）,MI has been observed after free-flap head and neck reconstruction although it has not been reported after free-flap lower extremity reconstruction. Thus, we report a rare case of sudden death from MI after free-flap foot reconstruction.

关键词： Myocardial Free-flap Reconstruction

Relationship between insulin resistance, obesity and serum prostate-specific antigen levels in healthy men

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Asian Journal of Andrology 2010年第3期12卷 400-404,I0011页

作者： June Hyun Han Yong taec Lee ky.ng Won Kwak Seung Hyun Ahn In Ho Chang Soon Chul Myung Seung Young Oh Yong-Seong Lee Wonyong kim Young-Woo Jin Tae-In Choi Sook Hee Sung Department of Urology KEPCO Medical Foundation Hanil General Hospital Seou1132-703 Korea Department of Urology Chung-Ang University Hospital Seoul 140-757 Korea Department of Urology Hyundae General Hospital Namyangju 472-865 Korea Department of Urology Hallym University Hangang Sacred Heart Hospital Seoul 150-719 Korea Department of Microbiology College of Medicine Chung-Ang University Seoul 156- 756 Korea Radiation Health Research Institute Korea Hydro ＆ Nuclear Power Co. LTD Seoul 132-703 Korea

The purpose of this study was to determine the relationship between insulin resistance, obesity and serum prostate-specific antigen （PSA） levels in healthy men with serum PSA level below 4 ng mL-1. The men included in the study cohort were 11 827 healthy male employees of the Korea Hydro and Nuclear Power Co., LTD who had undergone medical checkups including fasting glucose, fasting insulin and serum PSA between January 2003 and December 2008. Insulin resistance was calculated by homeostasis model assessment （HOMA [fasting glucose × fasting insulin]/22.5） and quantitative insulin sensitivity check index （QUICK/; 1/[log （fasting insulin）＋ log （fasting glucose）]）. Age-adjusted body mass index （BMI） was significantly increased according to increasing quartile of insulin resistance as determined by HOMA and QUICKI, respectively, in analysis of variance （ANOVA） test and Duncan＇s multiple comparison test （P 〈 0.001）, but age-adjusted serum PSA concentration was significantly decreased according to increasing quartile of insulin resistance as determined by HOMA and QUICK/（P 〈 0.001）. Age, BMI, insulin resistance by HOMA or QUICK/were significantly independent variables to serum PSA level in a multivariate linear regression analysis （P 〈 0.001）. Insulin resistance was a significant independent variable to serum PSA level along with BMI. Insulin resistance and BMI were negatively correlated with serum PSA level in healthy men. Insulin resistance was positively correlated with BMI.

关键词： body mass index insulin resistance metabolic syndrome X obesity prostate-specific antigen

3~6岁学前儿童口腔与喉部轮替运动能力特征研究

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听力学及言语疾病杂志 2024年第5期32卷 393-397页

作者：赵纹笙王晓雨康晓茜刘恒鑫曹艳静盖彤 kim Haky.ng 华东师范大学教育学部康复科学系上海200062 国家儿童医学中心/首都医科大学附属北京儿童医院耳鼻咽喉头颈外科/儿童耳鼻咽喉头颈外科疾病北京市重点实验室长沙民政职业技术学院上海交通大学医学院附属上海儿童医学中心

目的探究3~6岁学前儿童口腔与喉部轮替运动能力特征以及声带协调运动的发展规律。方法选取61例3~6岁正常学前儿童,测量其最长声时(MPT),以及口腔轮替运动(diadochokinesis ability,DDK)和喉部轮替运动(laryngeal diadochokinesis abilit... 详细信息

目的探究3~6岁学前儿童口腔与喉部轮替运动能力特征以及声带协调运动的发展规律。方法选取61例3~6岁正常学前儿童,测量其最长声时(MPT),以及口腔轮替运动(diadochokinesis ability,DDK)和喉部轮替运动(laryngeal diadochokinesis ability,LDDK)两类声学参数,包括评估三音节/pataka/口腔轮替速率和单音节/a/、/ha/、//、/h/喉部轮替速率。结果3~6岁学前儿童DDK和LDDK速率随年龄增加而增长,有极显著差异(P/ha/LDDK(P/h/LDDK(P<0.05)。结论年龄、MPT以及声带内收外展状态对3~6岁学前儿童口腔与喉部轮替运动能力有显著影响;4~5岁是儿童口腔和喉部轮替运动能力发展的关键时期。

关键词：口腔轮替运动能力喉部轮替运动能力语言运动控制

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作为反体制运动的韩国民族主义

当代韩国 2010年第3期 17-23页

作者：金东泽首尔成均馆大学东亚学术院东亚地区研究所

本文试图站在历史的角度厘清现代韩国民族主义反体制的性质。历史上,韩国的民族主义是以抵抗国家反体制运动的身份确立自己的地位的。开港以后,当时的统治阶层们试图建立近代国家。这种尝试失败后,国家的权力被日本抢走。作为日益走向... 详细信息

本文试图站在历史的角度厘清现代韩国民族主义反体制的性质。历史上,韩国的民族主义是以抵抗国家反体制运动的身份确立自己的地位的。开港以后,当时的统治阶层们试图建立近代国家。这种尝试失败后,国家的权力被日本抢走。作为日益走向衰亡的国家的替代品,一部分知识分子鼓吹由精神构成的国家、国粹,而作为维持它的主体,则提出了民族或者同胞的概念。因此,民族成了建立国家的主体,并在殖民地时代以独立运动、在解放后的分裂局面下以统一运动的形态确立了自己的地位。

关键词：近代国民国家民族主义反体制运动脱民族主义统一

Effects of primary glaucoma on sleep quality and daytime sleepiness of patients residing at an equatorial latitude

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International Journal of Ophthalmology(English edition) 2020年第9期13卷 1451-1458页

作者： Jacob YH Chin Zhi Hong Toh Ying Tai Lo Hannah TY Wang Elizabeth YW Poh Chun Hau Chua Owen kim Hee Boon Ang Lim Vernon ky Yong Augustinus Laude Hon Tym Wong Leonard WL Yip Department of Ophthalmology National Healthcare Group Eye InstituteTan Tock Seng Hospital308433Singapore Monash School of Medicine Monash UniversityVictoria 3800Australia

AIM:To investigate the impact of primary glaucoma on sleep quality and daytime sleepiness of ***:Prospective cross-sectional study with consecutive sampling in South-East Asian population was *** questionnaires:the Pittsburg Sleep Quality Index(PSQI)and Epworth Sleepiness Scale(ESS)were administered *** with nonglaucomatous optic neuropathy or concomitant retinal pathology were *** severity was based on HVF 24-2 *** single vision was represented based on the better *** of and predictive factors for poor sleep quality and excessive daytime sleepiness were ***:A total of 79 primary open angle glaucoma(POAG),27 primary angle-closure glaucoma(PACG)patients,and 89 controls were *** patients had higher median PSQI scores(P=0.004)and poorer sleep quality(P<0.001).Compared to controls,PACG patients were 3.34 times more likely to have poor sleep quality(P=0.008),which remained significant after adjustment for demographics(P=0.016)and predictive variables(P=0.013).PACG patients have poorer sleep quality when visual acuity(VA)was 6/15 or worse(P=0.009).Univariate and multivariate analysis of predictive variables for poor sleep quality and daytime sleepiness did not find statistical ***:PACG patients have poorer sleep quality but not daytime *** is important in South-East Asian population with heavy disease *** on sleep disturbances can be considered to provide more ho istic care.

关键词： sleep disturbances primary glaucoma intrinsically photosensitive retinal ganglion cells daytime sleepiness sleep quality South-East Asia

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南韩东海地区老地震资料的高分辨率处理

物探化探译丛 1997年第A2期 101-104页

作者： kim,ky 屈智华

Proteasomal adaptations to FDA-approved proteasome inhibitors:a potential mechanism for drug resistance?

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Cancer Drug Resistance 2021年第3期4卷 634-645页

作者： ky.ng Bo kim Department of Pharmaceutics College of PharmacyUniversity of KentuckyLexingtonKY 40536-0596USA

With proteasome inhibitors(PIs)becoming clinically available since 2003,outcomes for patients with multiple myeloma(MM)have dramatically changed,improving quality of life and *** the impressive treatment success,however,almost all MM patients who initially respond to these PIs eventually develop ***,a portion of MM patients is inherently unresponsive to the *** mechanistic investigations identified several non-proteasomal signaling pathways suspected to be linked to the PI resistance,for which several excellent reviews are currently *** the other hand,it is still unclear how cancer cells under high PI environments adapt to spare proteasome activity essential for survival and proliferation regardless of cancer evolution *** review outlines current progress towards understanding the proteasomal adaptations of cells in response to PI treatment to maintain necessary proteasome activity.A better understanding of cellular proteasomal changes in response to the PIs could provide a rationale to develop new therapeutics that could be used to overcome resistance to existing PI drugs.

关键词： Constitutive proteasome immunoproteasome carfilzomib bortezomib drug resistance