1.Voice Recognition for Periodontal Probing Medical Records under Korean–English Bilingual Conditions: A Feasibility Study
Young Woo KIM ; Jin Hyeok KOOK ; Yiseul CHOI ; Wonse PARK
Healthcare Informatics Research 2026;32(2):118-124
Objectives:
This study evaluated the feasibility of voice recognition-based electronic medical record (EMR) documentation for periodontal probing in dentistry, particularly emphasizing Korean-English bilingual speech patterns and real-world clinical conditions.
Methods:
Experiments were conducted in a dental chair setting during routine clinical hours. Environmental noise levels were measured, and two microphone types (stationary and pin-type) were evaluated. Periodontal probing phrases composed of three-digit numbers and positional terms were used for speech recognition. Consistent with common clinical practice in Korea, numerical values were spoken in Korean, whereas positional terms were spoken in English. Two speech-to-text application programming interfaces, Google Cloud Speech-to-Text and Naver Clova Speech Recognition, were assessed. Recognition accuracy was evaluated for both numerical components and complete bilingual phrases.
Results:
The mean environmental noise level was 60.65 dB and was minimally influenced by activity at adjacent dental chairs. The stationary microphone failed to capture speech effectively, whereas the pin-type microphone demonstrated stable recognition performance. For three-digit number recognition, accuracy was 88.3% with Google and 96.8% with Naver. For full-phrase recognition, complete matching was achieved in 36.7% of cases for Google and 52.5% for Naver. Partial recognition occurred more frequently for numerical components than for English positional terms.
Conclusions
Voice recognition-based EMR documentation for periodontal probing demonstrated preliminary feasibility in a dental clinical environment; however, performance was influenced by Korean-English bilingual speech patterns. These findings suggest that bilingual speech characteristics should be considered when implementing voice recognition systems in dental EMR workflows. Further optimization is required before routine clinical application.
2.The Enhancement of Line Operations Safety Audit for Safe Flight Operation
Korean Journal of Aerospace and Environmental Medicine 2025;35(1):4-7
Purpose:
Line Operations Safety Audit (LOSA) has reduced errors by detecting and managing threats and errors of flight deck crew in the cockpit during normal flight operations. Airlines can understand the countermeasures and competencies of the crew and the success of error management. This paper introduces the advantages of LOSA and how LOSA data collection can be enhanced for the safety of flight operations.
Methods:
It analyzed the components of data collection tool in the International Civil Aviation Organization Doc 9803, LOSA manual to find out the deficiencies for enhancement.
Results:
Five suggestions are proposed in this study, codes for positive activities and the development of a form, the development of proactive strategies that predict threats in advance and manage the threats and management of errors, to describe the coding and narrative for successful briefings that manage threats and errors and codes for positive culture are required for successful LOSA data collection flight operations.
Conclusion
Safety Management System, Threat and Error Management, LOSA, and other conventional safety tools manage safety based on risk or failure, so if we change the paradigm, we can train more safety-resilient pilots. The tragic outcomes such as accidents or incidents have the problem of low occurrence probability, but if we supplement and utilize LOSA data of normal flights, we can prevent accidents or nearaccidents in advance.
3.The Enhancement of Line Operations Safety Audit for Safe Flight Operation
Korean Journal of Aerospace and Environmental Medicine 2025;35(1):4-7
Purpose:
Line Operations Safety Audit (LOSA) has reduced errors by detecting and managing threats and errors of flight deck crew in the cockpit during normal flight operations. Airlines can understand the countermeasures and competencies of the crew and the success of error management. This paper introduces the advantages of LOSA and how LOSA data collection can be enhanced for the safety of flight operations.
Methods:
It analyzed the components of data collection tool in the International Civil Aviation Organization Doc 9803, LOSA manual to find out the deficiencies for enhancement.
Results:
Five suggestions are proposed in this study, codes for positive activities and the development of a form, the development of proactive strategies that predict threats in advance and manage the threats and management of errors, to describe the coding and narrative for successful briefings that manage threats and errors and codes for positive culture are required for successful LOSA data collection flight operations.
Conclusion
Safety Management System, Threat and Error Management, LOSA, and other conventional safety tools manage safety based on risk or failure, so if we change the paradigm, we can train more safety-resilient pilots. The tragic outcomes such as accidents or incidents have the problem of low occurrence probability, but if we supplement and utilize LOSA data of normal flights, we can prevent accidents or nearaccidents in advance.
4.The Enhancement of Line Operations Safety Audit for Safe Flight Operation
Korean Journal of Aerospace and Environmental Medicine 2025;35(1):4-7
Purpose:
Line Operations Safety Audit (LOSA) has reduced errors by detecting and managing threats and errors of flight deck crew in the cockpit during normal flight operations. Airlines can understand the countermeasures and competencies of the crew and the success of error management. This paper introduces the advantages of LOSA and how LOSA data collection can be enhanced for the safety of flight operations.
Methods:
It analyzed the components of data collection tool in the International Civil Aviation Organization Doc 9803, LOSA manual to find out the deficiencies for enhancement.
Results:
Five suggestions are proposed in this study, codes for positive activities and the development of a form, the development of proactive strategies that predict threats in advance and manage the threats and management of errors, to describe the coding and narrative for successful briefings that manage threats and errors and codes for positive culture are required for successful LOSA data collection flight operations.
Conclusion
Safety Management System, Threat and Error Management, LOSA, and other conventional safety tools manage safety based on risk or failure, so if we change the paradigm, we can train more safety-resilient pilots. The tragic outcomes such as accidents or incidents have the problem of low occurrence probability, but if we supplement and utilize LOSA data of normal flights, we can prevent accidents or nearaccidents in advance.
5.The Enhancement of Line Operations Safety Audit for Safe Flight Operation
Korean Journal of Aerospace and Environmental Medicine 2025;35(1):4-7
Purpose:
Line Operations Safety Audit (LOSA) has reduced errors by detecting and managing threats and errors of flight deck crew in the cockpit during normal flight operations. Airlines can understand the countermeasures and competencies of the crew and the success of error management. This paper introduces the advantages of LOSA and how LOSA data collection can be enhanced for the safety of flight operations.
Methods:
It analyzed the components of data collection tool in the International Civil Aviation Organization Doc 9803, LOSA manual to find out the deficiencies for enhancement.
Results:
Five suggestions are proposed in this study, codes for positive activities and the development of a form, the development of proactive strategies that predict threats in advance and manage the threats and management of errors, to describe the coding and narrative for successful briefings that manage threats and errors and codes for positive culture are required for successful LOSA data collection flight operations.
Conclusion
Safety Management System, Threat and Error Management, LOSA, and other conventional safety tools manage safety based on risk or failure, so if we change the paradigm, we can train more safety-resilient pilots. The tragic outcomes such as accidents or incidents have the problem of low occurrence probability, but if we supplement and utilize LOSA data of normal flights, we can prevent accidents or nearaccidents in advance.
6.The Enhancement of Line Operations Safety Audit for Safe Flight Operation
Korean Journal of Aerospace and Environmental Medicine 2025;35(1):4-7
Purpose:
Line Operations Safety Audit (LOSA) has reduced errors by detecting and managing threats and errors of flight deck crew in the cockpit during normal flight operations. Airlines can understand the countermeasures and competencies of the crew and the success of error management. This paper introduces the advantages of LOSA and how LOSA data collection can be enhanced for the safety of flight operations.
Methods:
It analyzed the components of data collection tool in the International Civil Aviation Organization Doc 9803, LOSA manual to find out the deficiencies for enhancement.
Results:
Five suggestions are proposed in this study, codes for positive activities and the development of a form, the development of proactive strategies that predict threats in advance and manage the threats and management of errors, to describe the coding and narrative for successful briefings that manage threats and errors and codes for positive culture are required for successful LOSA data collection flight operations.
Conclusion
Safety Management System, Threat and Error Management, LOSA, and other conventional safety tools manage safety based on risk or failure, so if we change the paradigm, we can train more safety-resilient pilots. The tragic outcomes such as accidents or incidents have the problem of low occurrence probability, but if we supplement and utilize LOSA data of normal flights, we can prevent accidents or nearaccidents in advance.
7.Chromosomal Rearrangements in 1,787 Cases of Acute Leukemia in Korea over 15 Years
DongGeun SON ; Ho Cheol JANG ; Young Eun LEE ; Yong Jun CHOI ; Joo Heon PARK ; Ha Jin LIM ; Hyun-Jung CHOI ; Hee Jo BAEK ; Hoon KOOK ; Mihee KIM ; Ga-Young SONG ; Seo-Yeon AHN ; Sung-Hoon JUNG ; Deok-Hwan YANG ; Je-Jung LEE ; Hyeonug-Joon KIM ; Jae-Sook AHN ; Myung-Geun SHIN
Annals of Laboratory Medicine 2025;45(4):391-398
Background:
Chromosomal alterations serve as diagnostic and prognostic markers in acute leukemia. Given the evolving landscape of chromosomal abnormalities in acute leukemia, we previously studied these over two periods. In this study, we investigated the frequency of these abnormalities and clinical trends in acute leukemia in Korea across three time periods.
Methods:
We retrospectively analyzed data from 1,787 patients with acute leukemia (319 children and 1,468 adults) diagnosed between 2006 and 2020. Conventional cytogenetics, FISH, and multiplex quantitative PCR were used for analysis. The patient groups were divided according to the following three study periods: 2006–2009 (I), 2010–2015 (II), and 2016–2020 (III).
Results:
Chromosomal aberrations were detected in 92% of patients. The PML::RARA translocation was the most frequent. Over the 15-yr period, chromosomal aberrations showed minimal changes, with specific fusion transcripts being common among patients.ALL was more prevalent in children than in adults and correlated significantly with the ETV6::RUNX1 and RUNX1::RUNX1T1 aberrations. The incidence of ALL increased during the three periods, with PML::RARA remaining common.
Conclusions
The frequency of chromosomal abnormalities in acute leukemia has changed subtly over time. Notably, the age of onset of adult AML has continuously increased. Our results may help in establishing diagnoses and clinical treatment strategies and developing various molecular diagnostic platforms.
8.Preliminary evaluation of the effect of revised reimbursement scheme in outpatient hemodialysis for medical aid recipients in Korea
Heenyun KIM ; Yongseok CHOI ; Soontack KWON ; Kook Young JANG ; Do Kyung RYUK ; Hyejin LEE ; Jin Yong LEE
Kidney Research and Clinical Practice 2025;44(3):444-451
South Korea has universal health coverage guaranteeing equitable healthcare for all. However, equity issues have been raised regarding hemodialysis reimbursement for medical aid recipients with chronic kidney disease. Physicians and civic groups demanded a revision of the discriminatory policy, and in response, the Ministry of Health and Welfare amended the hemodialysis case payment scheme. This study aims to evaluate the effectiveness of the reform and detect any unintended policy outcomes. Methods: Data from the Health Insurance Review and Assessment Service of Korea was used. All subjects were patients with chronic kidney disease who received outpatient hemodialysis and medical aid from April 2017 to March 2022. The dzata was analyzed with descriptive statistics, and the generalized estimation equation was used to control for covariates and identify policy effects. Results: The reform of the case payment scheme in 2021 raised the compensation level per hemodialysis case, which was fixed for 7 years from 2014, by approximately 2,000 Korean won. There was no negative effect such as additional expenditure resulting from an unintentional increase in medical use. Conclusion: A year has passed since the implementation of the outpatient hemodialysis rate system reform for medical aid recipients. Our results indicate that the reform has gone smoothly, and we anticipate continuous efforts by the government to guarantee universal health coverage to medical aid recipients. Through such consistent endeavors to correct the discriminatory aspects of policies, South Korea will achieve true universal health coverage.
9.Air Traffic Control Threats to Pilots through Line Operations Safety Audits
Korean Journal of Aerospace and Environmental Medicine 2024;34(1):19-22
Purpose:
The purpose of this study is to understand the air traffic control (ATC) threats that cause airline pilots to commit errors during normal operations by identifying the prevalence of ATC threats to reduce ATC communication errors for safe flights. This study deals with ATC communication threats effect on the human performance of pilots through LOSA (line operations safety audit) implemented by Airlines.
Methods:
This study deals with ATC communication threats effect on the human performance of pilots through LOSA implemented by two domestic Airlines.
Results:
The prevalence of ATC threats shows that there are 60% of flights with at least one ATC-related threat. The frequent ATC threats have been identified as difficulties in understanding controller accents, changes of the runway, errors by ATC controllers, difficult clearance of altitude change and multiple clearances in one call. The most prevailing ATC threats occurred during the Descend, Approach & Land phase of the flight.
Conclusion
In order to prevent accidents related with ATC and improve threats and human errors in the actual environment of pilots, it is necessary to identify and analyze the actual threats and errors in the cockpit regarding ATC. It is required to improve the management of ATC threats proactively. According to LOSA result, ATC threats are a frequent threat to pilots, and the most frequent type of ATC for pilots is difficult Accent or language to understand controller. These findings could be trained in the simulators and cockpit in a similar environment and workload as in actual flight for effective countermeasures.
10.Antiproliferative Activity of Piceamycin by Regulating Alpha-Actinin-4 in Gemcitabine-Resistant Pancreatic Cancer Cells
Jee-Hyung LEE ; Jin Ho CHOI ; Kyung-Min LEE ; Min Woo LEE ; Ja-Lok KU ; Dong-Chan OH ; Yern-Hyerk SHIN ; Dae Hyun KIM ; In Rae CHO ; Woo Hyun PAIK ; Ji Kon RYU ; Yong-Tae KIM ; Sang Hyub LEE ; Sang Kook LEE
Biomolecules & Therapeutics 2024;32(1):123-135
Although gemcitabine-based regimens are widely used as an effective treatment for pancreatic cancer, acquired resistance to gemcitabine has become an increasingly common problem. Therefore, a novel therapeutic strategy to treat gemcitabine-resistant pancreatic cancer is urgently required. Piceamycin has been reported to exhibit antiproliferative activity against various cancer cells; however, its underlying molecular mechanism for anticancer activity in pancreatic cancer cells remains unexplored. Therefore, the present study evaluated the antiproliferation activity of piceamycin in a gemcitabine-resistant pancreatic cancer cell line and patient-derived pancreatic cancer organoids. Piceamycin effectively inhibited the proliferation and suppressed the expression of alpha-actinin-4, a gene that plays a pivotal role in tumorigenesis and metastasis of various cancers, in gemcitabine-resistant cells. Long-term exposure to piceamycin induced cell cycle arrest at the G0/G1 phase and caused apoptosis. Piceamycin alsoinhibited the invasion and migration of gemcitabine-resistant cells by modulating focal adhesion and epithelial-mesenchymal transition biomarkers. Moreover, the combination of piceamycin and gemcitabine exhibited a synergistic antiproliferative activity in gemcitabine-resistant cells. Piceamycin also effectively inhibited patient-derived pancreatic cancer organoid growth and induced apoptosis in the organoids. Taken together, these findings demonstrate that piceamycin may be an effective agent for overcoming gemcitabine resistance in pancreatic cancer.

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