The Effect of Real-time Score Feedback on L2 English Learners’ Pronunciation and Motivation in an ASR-based CAPT System

Reece Randall,Yeonjung Hong,Hosung Nam 한국응용언어학회 2021 응용 언어학 Vol.37 No.4

This study examines the effect of real-time pronunciation score feedback in an automatic speech recognition (ASR) based computer-assisted pronunciation training (CAPT) system on L2 English learners" pronunciation and motivation. The CAPT system used in this study provides real-time phoneme-level pronunciation scores on the learner"s read-speech of a given English sentence. In the experiment, the L2 English learners practiced English pronunciation repeatedly using the CAPT system. The effect of score feedback of the CAPT system was analyzed both objectively and subjectively. In the objective analysis, pronunciation quality was measured with the pronunciation score trend along the repeated practices, and the learners" motivation was measured with the number of practices. In the subjective analysis, the learners" responses on survey questions about how the system helped to improve pronuniation and motivation were analyzed. The results proved that the use of CAPT system helped Korean L2 English learners improve their pronunciation and motivation.

Moon Care and Preliminary Benefit Program in South Korea: Innovative Strategies in Post-Market Evidence Generation for Medical Devices

이상수,최현숙,Reece Holbrook 한국보건의료기술평가학회 2018 보건의료기술평가 Vol.6 No.1

Objectives: The President Moon administration was launched in May 2017. The “Benefit Expansion” of the National Health Insurance (NHI) system has emerged as the core policy of the new government. It provides an overview of the health policies and programs announced by the Moon administration and suggests health policy operation for a successful and effective “Preliminary Benefit” program specific to medical devices which is one of the main drivers in the new health policies. Methods: A description of the new health policies, namely “NHI Benefit Enhancement Measures” and “Preliminary Benefit” program and a review of foreign strategies in post-market evidence generation for medical devices which provides insight for evidence generation applicable in South Korea. Results: Registries are strategic instruments to generate evidence under “Preliminary Benefit” for those medical devices which do not have sufficient evidence at the time of market entry and subsequent post-market stage. As demonstrated in the transcatheter valve therapy registry and Micra coverage with evidence development study, there are even more effective and cost-saving methods for evidence generation. There are several strategies and elements that can be considered in performing efficient medical device registries: 1) quality measure and pay-for-performance, 2) registry linking with claims datasets, 3) funding and resource provision for registry, and 4) participation in international registries. Conclusion: The “Preliminary Benefit” program under “Moon Care” is epoch-making in the benefit expansion history of NHI system. Registries are one of the promising strategies to pursue health technology reassessment required in the “Preliminary Benefit” program. The success of “Preliminary Benefit” depends on the reassessments, and the evidence generation of medical devices required for reassessment can be resolved by registries. The development of and investment in registries, and even more innovative evidence generation approaches as seen in the foreign cases, should be made for the “Preliminary Benefit” program.

Improved Lithium-Storage Capability and Cyclability of Tin Dioxide Confined in Highly Crosslinked Graphene Framework

Jeong, Jaehyang,Reece, Michael J.,Pyo, Myoungho The Electrochemical Society 2015 Journal of the Electrochemical Society Vol.162 No.9

<P>The dimensional stability of SnO<SUB>2</SUB> nanoparticles during Li<SUP>+</SUP> insertion/de-insertion was improved by confining them within a highly crosslinked graphene framework. The composite was synthesized by reacting an optimal amount of bezene-1,4-diboronic acid (BDBA) with SnO<SUB>2</SUB>-anchored graphene oxide (SG) that had a high density of oxygen functionalities. The latter was prepared by irradiating ozone on as-synthesized SG. The resultant composite (SGF) possessed a high boron/carbon ratio and a low fraction of unreacted boronic acid moieties, indicating the production of a highly crosslinked framework. The SGF showed excellent stability with a high capacity when cycled between 0.1 and 3.0 V vs. Li/Li<SUP>+</SUP>. A decrease of the low-end potential limit induced instability of the boronic ester linkage, which led to a relatively fast capacity fading. The SGF delivered capacities greater than 940 mAh·g<SUP>−1</SUP> after 150 cycles at 200 mA·g<SUP>−1</SUP>, with a fading rate of 1.3 mAh·g<SUP>−1</SUP>·cycle<SUP>−1</SUP> (from 2<SUP>nd</SUP> to 150<SUP>th</SUP> cycles). This was contrasted with 10.4 mAh·g<SUP>−1</SUP>·cycle<SUP>−1</SUP> for SGF prepared without ozone-treatment and cycled between 0.01 and 3.0 V vs. Li/Li<SUP>+</SUP>. The rate capabilities of SGF were also comparable to or better than those reported previously for SnO<SUB>2</SUB>/graphene composites, implying that the highly crosslinked framework does not hamper the electroactivity of SnO<SUB>2</SUB> nanoparticles.</P>

Microdosimetric Approach in Subcellular Dose Estimations for Internal Beta Sources : How high dose level is high enough to ignore the randomness ?

김은희,Bolch, Wesley E,Reece, W. Dan,Poston, Jonn W. 대한핵의학회 1996 핵의학 분자영상 Vol.30 No.2

Mutual Recognition of National Military Airworthiness Authorities: A Streamlined Assessment Process

Purton, Leon,Kourousis, Kyriakos I.,Clothier, Reece,Massey, Kevin The Korean Society for Aeronautical and Space Scie 2014 International Journal of Aeronautical and Space Sc Vol.15 No.1

The Air and Space Interoperability Council (ASIC) has adopted the European Defence Agency (EDA) process for inter-regulatory military airworthiness authority recognition. However, there are gaps in the application of this process to nations outside of the European Union. This paper proposes a model that can effectively map diverse technical airworthiness regulatory frameworks. This model, referred to as the Product-Behaviour-Process (PBP) Bow-Tie model, provides the systematic structure needed to represent and compare regulatory frameworks. The PBP Bow-Tie model identifies key points of difference that need to be addressed, during inter-agency recognition between the two regulatory authorities. With the intention to adopt global use of the EDA process, the proposed PBP Bow-Tie model can be used as a basis for the successful recognition of regulatory frameworks outside of the European Union. Iris plots produced from the implementation of this model are presented, and proposed as a suitable means of illustrating the outcome of an assessment, and of supporting the comparisons of results. A comparative analysis of the Australian Defence Force and New Zealand Defence Force airworthiness regulatory frameworks is used as a case study. The case study clearly illustrates the effectiveness of the model in discerning regulatory framework differences; moreover, it has offered an opportunity to explore the limitations of the Iris plot.

Mutual Recognition of National Military Airworthiness Authorities

Leon Purton,Kyriakos I. Kourousis,Reece Clothier,Kevin Massey 한국항공우주학회 2014 International Journal of Aeronautical and Space Sc Vol.15 No.1

The Air and Space Interoperability Council (ASIC) has adopted the European Defence Agency (EDA) process for interregulatory military airworthiness authority recognition. However, there are gaps in the application of this process to nations outside of the European Union. This paper proposes a model that can effectively map diverse technical airworthiness regulatory frameworks. This model, referred to as the Product-Behaviour-Process (PBP) Bow-Tie model, provides the systematic structure needed to represent and compare regulatory frameworks. The PBP Bow-Tie model identifies key points of difference that need to be addressed, during inter-agency recognition between the two regulatory authorities. With the intention to adopt global use of the EDA process, the proposed PBP Bow-Tie model can be used as a basis for the successful recognition of regulatory frameworks outside of the European Union. Iris plots produced from the implementation of this model are presented, and proposed as a suitable means of illustrating the outcome of an assessment, and of supporting the comparisons of results. A comparative analysis of the Australian Defence Force and New Zealand Defence Force airworthiness regulatory frameworks is used as a case study. The case study clearly illustrates the effectiveness of the model in discerning regulatory framework differences; moreover, it has offered an opportunity to explore the limitations of the Iris plot.

Phase stability and rapid consolidation of hydroxyapatite-zirconia nano-coprecipitates made using continuous hydrothermal flow synthesis.

Chaudhry, Aqif A,Yan, Haixue,Viola, Giuseppe,Reece, Mike J,Knowles, Jonathan C,Gong, Kenan,Rehman, Ihtesham,Darr, Jawwad A Technomic Pub 2012 Journal of biomaterials applications Vol.27 No.1

<P>A rapid and continuous hydrothermal route for the synthesis of nano-sized hydroxyapatite rods co-precipitated with calcium-doped zirconia nanoparticles using a superheated water flow at 450C and 24.1 MPa as a crystallizing medium is described. Hydroxyapatite and calcium-doped zirconia phases in the powder mixtures could be clearly identified based on particle size and morphology under transmission electron microscopy. Retention of a nanostructure after sintering is crucial to load-bearing applications of hydroxyapatite-based ceramics. Therefore, rapid consolidation of the co-precipitates was investigated using a spark plasma sintering furnace under a range of processing conditions. Samples nominally containing 5 and 10 wt% calcium-doped zirconia and hydroxyapatite made with Ca:P solution molar ratio 2.5 showed excellent thermal stability (investigated using in situ variable temperature X-ray diffraction) and were sintered via spark plasma sintering to >96% sintered densities at 1000C resulting in hydroxyapatite and calcium-doped zirconia as the only two phases. Mechanical tests of spark plasma sintering sintered samples (containing 10 wt% calcium-doped zirconia) revealed a three-pt flexural strength of 107.7 MPa and Weibull modulus of 9.9. The complementary nature of the spark plasma sintering technique and continuous hydrothermal flow synthesis (which results in retention of a nanostructure even after sintering at elevated temperatures) was hence showcased.</P>

Survey on <i>Perkinsus</i> Species in Manila Clam <i>Ruditapes philippinarum</i> in Korean Waters Using Species-Specific PCR

Kang, Hyun-Sil,Yang, Hyun-Sung,Reece, Kimberly S.,Cho, Young-Ghan,Lee, Hye-Mi,Kim, Chul-Won,Choi, Kwang-Sik The Japanese Society of Fish Pathology 2017 Fish pathology Vol.52 No.4

First report of Perkinsus honshuensis in the variegated carpet shell clam Ruditapes variegatus in Korea

Kang, H. S.,Yang, H. S.,Reece, K. S.,Hong, H. K.,Park, K. I.,Choi, K. S. INTER RESEARCH 2016 Diseases of aquatic organisms Vol.122 No.1

<P>The recent discovery of Perkinsus honshuensis, a new Perkinsus species infecting Manila clams Ruditapes philippinarum (Sowerby, 1852), in Japan, suggested that, based on proximity, P. honshuensis could also be in Korean waters, where to date, P. olseni was believed to be the only Perkinsus species present. Perkinsus sp. infections consistently occurred among Ruditapes variegatus clams on a pebble beach on Jeju Island, off the south coast of Korea. The typical 'signet ring' morphology of the parasite was observed in the connective tissue of the digestive gland, and infection intensity was comparatively low (3.3 x 10(3) +/- 1.2 x 10(4) to 1.3 x 10(4) +/- 6.1 x 10(4) cells g(-1) gill weight). Further DNA analyses of internal transcribed spacer (ITS-1, 5.8S and ITS-2) and non-transcribed spacer (NTS) regions of the parasite showed 98.9-99.8 and 98.5-99.5% similarity to those of P. honshuensis from Japan, respectively. Phylogenetic analyses using ITS and NTS sequences indicated that Perkinsus sp. from Jeju formed a highly supported clade with P. honshuensis. This is the first report of P. honshuensis infections in clams in Korean waters and the first report of R. variegatus as a host for that parasite.</P>

Plastic Surgeons as Medical Directors: A Natural Transition into Medical Leadership

Jalalabadi Faryan,Ferry Andrew M.,Chang Andrew,Reece Edward M.,Izaddoost Shayan A.,Hassid Victor J.,Tahiri Youssef,Buchanan Edward P.,Winocour Sebastian J. 대한성형외과학회 2022 Archives of Plastic Surgery Vol.49 No.1

With the growing complexity of the U.S. health care system, highly motivated medical directors with strong leadership skills are vital to the success of health care facilities. Presently, there are no articles assessing a plastic surgeon's qualifications for the role of medical director. In addition, there is a paucity of literature comparing the responsibilities of medical directors across various types of health care institutions. Herein, we outline why plastic surgeons have the unique skillset to succeed in this role and highlight the differences between medical director positions across the vast landscape of health care. While the intricacies of this position vary greatly across different landscapes of the health care industry, successful medical directors lead by following a set of universal principles predisposing them for success. Plastic surgeons innately exhibit a subset of particular traits deeming them suitable candidates for the medical director position. While transitioning from the role of a surgeon to that of a medical director does require some show of adaptation, plastic surgeons are ultimately highly likely to find intrinsic benefit from serving as a medical director.