FDG PET or PET/CT in Evaluation of Renal Angiomyolipoma

Chun-Yi Lin,Hui-Yi Chen,Hueisch-Jy Ding,Kuo-Yang Yen,Chia-Hung Kao 대한영상의학회 2013 Korean Journal of Radiology Vol.14 No.2

Objective: Angiomyolipoma is the most common benign kidney tumor. However, literature describing FDG PET findings on renal angiomyolipoma (AML) is limited. This study reports the FDG PET and PET/CT findings of 21 cases of renal AML. Materials and Methods: The study reviews FDG PET and PET/CT images of 21 patients diagnosed with renal AML. The diagnosis is based on the classical appearance of an AML on CT scan with active surveillance for 6 months. The study is focused on the observation of clinical and radiographic features. Results: Six men and 15 women were included in our study. The mean age of the patients was 57.14 ± 9.67 years old. The mean diameter of 21 renal AML on CT scans was 1.76 ± 1.00 cm (Min: 0.6 cm; Max: 4.4 cm). CT scans illustrated renal masses typical of AMLs, and the corresponding FDG PET scans showed minimal FDG activities in the area of the tumors. None of the 21 AMLs showed a maximum standardized uptake value (SUVmax) greater than 1.98. No statistically significant correlation was present between SUVmax and tumor size. Conclusion: Renal AMLs demonstrate very low to low uptake on FDG PET and PET/CT imaging in this study. When a fatcontaining tumor in the kidney is found on a CT scan, it is critical to differentiate an AML from a malignant tumor including an RCC, liposarcoma, and Wilms tumor. This study suggests that FDG PET or PET/CT imaging is useful for differentiating a renal AML from a fat-containing malignant tumor.

Student feedback to improve the United States Department of Agriculture Fresh Fruit and Vegetable Program

Yi-Chun Lin,Alyce D. Fly 대한지역사회영양학회 2016 Nutrition Research and Practice Vol.10 No.3

BACKGROUND/OBJECTIVES: Fruit and vegetable consumption of children in the United States falls below recommendations. The U.S. Department of Agriculture Fresh Fruit and Vegetable Program (FFVP) is a national free-fruit and vegetable school distribution program designed to address this problem. This permanent, legislated program provides funding to qualified elementary schools for provision of additional fruit and vegetables outside of school meals. The objective of this study was to understand children’s perceptions of FFVP after the intervention and formulate recommendations that may improve success of the intervention. SUBJECTS/METHODS: Secondary data were obtained from 5,265 4th-6th graders at 51 randomly-selected FFVP intervention schools in Indiana. Anonymous questionnaires were completed late in the 2011-2012 academic year. Multilevel logistic regressions were used to determine associations between students’ perceptions of program effects (4 close-ended items) and their preference toward the program. Content analysis was applied to a single open-ended item for program comments. RESULTS: Over 47% of students reported greater intake of fruit and vegetables due to FFVP, and over 66% reported liking the program. Student-reported program effects were positively associated with preference for the program (P < 0.01). Themes that emerged during analysis of 3,811 comments, included, students liked: the opportunity to try different kinds of fruit and vegetables, types and flavors of fruits served, and benefits of eating fruit. Fewer students liked the types of vegetables and their benefits. A small group disliked the program citing poor flavor of vegetables and quality of fruits. Important suggestions for the program include serving more dipping sauces for vegetables, cooking vegetables, and providing a greater variety of produce. CONCLUSIONS: The degree that students liked FFVP may predict the program’s effects on fruit and vegetable intake. FFVP may become more acceptable to students by incorporating their suggestions. Program planners should consider these options for achieving program goals.

A Review of Electrically Tunable Focusing Liquid Crystal Lenses

Lin, Hung-Chun,Chen, Ming-Syuan,Lin, Yi-Hsin The Korean Institute of Electrical and Electronic 2011 Transactions on Electrical and Electronic Material Vol.12 No.6

Electrically tunable focusing liquid crystal (LC) lenses are reviewed in this paper. The distribution of the orientations of LC directors which is controlled by electric fields results in a distribution of refractive indices of LC directors. The incident light can be modulated by the electrically tunable lens-like phase difference of the LC lens. We introduce the basic operating principles of LC lenses and discuss the structures of LC lenses. The major challenges of LC lenses are also discussed. We believe this paper provides a guideline for basic understanding of LC lenses.

Development of the Mandarin Phoneme Detection Score Sheet as a Screening Tool

Lin Chun-Yi,Hung Yu-Chen,Chang Hsiu-Wen 대한청각학회 2022 Journal of Audiology & Otology Vol.26 No.1

Background and Objectives: Hearing thresholds across frequencies must be obtained for hearing aid fitting. Narrow-band noise (NBN) and speech sounds are often used as stimuli in pediatric audiologic assessments to elicit children’s attention due to their wider frequency ranges as compared to pure tones. However, obtaining complete responses across frequency ranges is challenging in pediatric practice. Therefore, we developed a frequency-specific phoneme screening tool, the Mandarin Phoneme Detection Score Sheet, to help clinicians evaluate aided performance in pediatric practice.Subjects and Methods: A total of 30 adults with typical hearing and 30 children aged 3-12 years with hearing loss were recruited. Threshold ranges for the aided detection of Mandarin phonemes and NBN were measured using 95% confidence intervals. A stepwise regression analysis was then performed to identify the Mandarin phonemes that can predict NBN detection performance.Results: The Mandarin Phoneme Detection Score Sheet was developed based on the results of the regression analysis. It was shown that the phonemes /ɤ, a, tɕh/ could predict detection performance at different frequencies.Conclusions: The Mandarin Phoneme Detection Score Sheet can allow audiologists and early intervention professionals to determine the benefits of hearing aids for pediatric patients in the early stage of hearing loss conditions.

Indoor Robot Navigation Based on DWA

Yi-Chun Lin,Chih-Chung Chou,Feng-Li Lian 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8

Robot navigation methods can be divided into two classes: global path planning and local reactive methods. Global path planning methods find an optimal path to a specified goal, while local reactive methods compute proper control commands for the robot according to recent sensory information. In this paper, a new navigation method is presented, the new method integrates dynamic window approach (DWA) and best-first search (BFS), therefore, the robot can react to dynamic environments and the path optimality can be maintained.

Enhancing Training Program Completion Rates for 2-Year Registered Nursing Staff in Haematology-Oncology Wards through Innovative Evidence-Based Nursing

Yi-Chun Lin,Pei-Chi Hsieh,Pei-Chien Lu 한국간호과학회 2015 한국간호과학회 학술대회 Vol.2015 No.10

Use of welfare outcome information in three types of dairy farm inspection reports

Lin, Yi-Chun,Mullan, Siobhan,Main, David C.J. Asian Australasian Association of Animal Productio 2018 Animal Bioscience Vol.31 No.9

Objective: The aim of this study was to examine the use of outcome-based observations within Assured Dairy Farm scheme (ADF), Soil Association Organic Standards (SA), and cross compliance (CC) farm assessment reports. Methods: A total of 449 ADF reports, 37 SA reports and 26 CC reports were analyzed and their objective comments categorized as either resource-based or outcome-based. Results: A mean of 61.0% of ADF questions were responded to with comments, in comparison to 25.0% of SA and, 21.0% of CC report questions. The SA and CC reports had significantly more outcome-based comments than the ADF (p<0.001). The assessors' tendency of choosing resource-based approach was revealed in the questionnaire results. Conclusion: Generally, the comments were comprehensive and contained professional judgements. Large numbers of comments provided in the ADF reports were mostly compliant and resource-based evidence, which serves as proof of assessment rather than aiding the certifying process. The inclusion of specific welfare outcome measures in the SA inspection likely increased the use of outcome-based comments in the reports, irrespective of whether the farm achieved compliance with a given standards. The CC scheme, on the other hand, focused on providing outcome-based evidence to justify noncompliant decisions.

MOF-Derived Bimetal-Embedded Carbon with Etched Morphologies as an Efficient Activator of Peroxymonosulfate for Eliminate Emerging Contaminants

Chen Yi-Chun,Jiang Xin-Yu,Lin Jia-Yin,Thanh Bui Xuan,Wang Haitao,Huang Chao-Wei,Ghotekar Suresh,Huang Chih-Feng,Lin Kun-Yi Andrew 한국화학공학회 2024 Korean Journal of Chemical Engineering Vol.41 No.6

As bis(4-hydroxyphenyl)methanone (BHP) is one of the most common UV light stabilizers (UVLS), but exhibits endocrine disrupting toxicity, this study aims to develop useful sulfate radical-based techniques to eliminate BHP from water by activating peroxymonosulfate (PMS). Hence, while cobalt (Co) exhibits effi cacy as a transition metal for the activation of PMS, the utilization of manganese/cobalt (Mn/Co) bimetallic oxides presents an even more encouraging prospect as heterogeneous catalysts for PMS activation. In this study, we have successfully produced N-doped carbon-supported Mn/Co nanoparticles (NCMC) with a distinctive hollow-engineered nanostructure. The synthesis involved the utilization of Co-MOF as a precursor, followed by easy etching and Mn doping to achieve the desired composition of Mn/Co bimetallic oxide nanoparticles. The inclusion of Mn dopant facilitates the integration of Mn/Co nanoparticles into the hollow-structured N-doped carbon matrix. NCMC demonstrates much higher activity compared to NCC and the benchmark catalyst, Co 3 O 4 NP, in terms of PMS activation for the degradation of BHP. The fi ndings of the eco-toxicity study indicate that the degradation of BHP by NCMC + PMS does not yield hazardous or extremely toxic byproducts, so establishing NCMC as a potentially eff ective heterogeneous catalyst for activating PMS in the degradation of BHP.

High Quality Partially Relaxed SiGe Film Grown on Silicon-on-Insulator Substrate by Ultra-High Vacuum Chemical Vapor Deposition

Chang Chun Chen,Wen Tao Huang,Zhi Hong Liu,Ji Lin Wang,Xiao Yi Xiong,Yi Lin Shan,Wei Zhang,Jun Zhu,Pei Hsin Tsien 대한금속학회 2004 METALS AND MATERIALS International Vol.10 No.3

A Review of Electrically Tunable Focusing Liquid Crystal Lenses

Hung-Chun Lin,Ming-Syuan Chen,Yi-Hsin Lin 한국전기전자재료학회 2011 Transactions on Electrical and Electronic Material Vol.12 No.6

Electrically tunable focusing liquid crystal (LC) lenses are reviewed in this paper. The distribution of the orientations of LC directors which is controlled by electric fields results in a distribution of refractive indices of LC directors. The incident light can be modulated by the electrically tunable lens-like phase difference of the LC lens. We introduce the basic operating principles of LC lenses and discuss the structures of LC lenses. The major challenges of LC lenses are also discussed. We believe this paper provides a guideline for basic understanding of LC lenses.