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  1. Article ; Online: Reply: Distal Radial Artery Access.

    Lee, Jun-Won / Lee, Seung-Hwan

    JACC. Cardiovascular interventions

    2024  Volume 17, Issue 8, Page(s) 1067–1068

    MeSH term(s) Radial Artery/diagnostic imaging ; Humans ; Catheterization, Peripheral/adverse effects ; Treatment Outcome ; Risk Factors ; Punctures ; Percutaneous Coronary Intervention/instrumentation
    Language English
    Publishing date 2024-01-11
    Publishing country United States
    Document type Letter
    ZDB-ID 2452157-7
    ISSN 1876-7605 ; 1936-8798
    ISSN (online) 1876-7605
    ISSN 1936-8798
    DOI 10.1016/j.jcin.2024.03.016
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    In stock of ZB MED Cologne/Königswinter

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  2. Article ; Online: Influence of technological innovation characteristics on the survival period of SMEs in the service industry

    Jun-won Lee

    Journal of Innovation & Knowledge, Vol 8, Iss 4, Pp 100422- (2023)

    Evidence from Korea

    2023  

    Abstract: This study analyzes the effects of innovation and innovation characteristics on the survival of Small and Medium-sized Enterprises (SMEs) in the service industry. After analyzing around 22,300 innovative SMEs in Korea's service industry using Kaplan- ... ...

    Abstract This study analyzes the effects of innovation and innovation characteristics on the survival of Small and Medium-sized Enterprises (SMEs) in the service industry. After analyzing around 22,300 innovative SMEs in Korea's service industry using Kaplan-Meier analysis, it is confirmed that the better the overall technological prowess (T-grade), the longer the survival period until delinquency (overdue payments for more than three months) and default. The technological innovation characteristics that significantly affect the survival period are derived using a time-dependent Cox model. Owner capability, productization capability, and profit prospects are found to positively affect the survival period of excellent SMEs, while R&D capability, technology superiority, and market status are found to have a negative effect. From an optimization perspective, if R&D capability is above an appropriate level, it can hinder the survival period of SMEs. Thus, it is interpreted that the more positive the market status, the more negative the survival period, because it accelerates the inflow of new competitors. Considering that owner capability, productization capability, and profit prospects are appraisal items based on business feasibility along with the technological prowess of SMEs, it is concluded that technology with business feasibility has a significantly positive effect on the survival period of innovative SMEs in the service industry.
    Keywords O32 ; History of scholarship and learning. The humanities ; AZ20-999 ; Social sciences (General) ; H1-99
    Subject code 338 ; 650
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Korean Clinical Guideline for Autism Spectrum Disorder - Clinical Features, Course, Epidemiology, and Cause.

    Hwang, Jun-Won / Lee, Jeong-Seop

    Soa--ch'ongsonyon chongsin uihak = Journal of child & adolescent psychiatry

    2024  Volume 35, Issue 1, Page(s) 8–14

    Abstract: Autism spectrum disorder (ASD) is a heterogeneous developmental disorder characterized by impairments in two core areas: 1) social communication and interaction and 2) restricted and repetitive patterns of behaviors and interests. In general, ASD is ... ...

    Abstract Autism spectrum disorder (ASD) is a heterogeneous developmental disorder characterized by impairments in two core areas: 1) social communication and interaction and 2) restricted and repetitive patterns of behaviors and interests. In general, ASD is known to be a lifelong disorder. Follow-up studies from childhood to adulthood have reported that the severity of the key symptoms ASD decreases over time. However, chronic health problems including mental health occur in many patients with ASD. The prevalence of ASD has increased from around 0.04% in the 1970s to 2.8% at present. The average age of diagnosis in developed countries is 38-120 months of age. Recent evidence suggests that biological factors which include genetic, congenital, immunological, neuroanatomical, biochemical, and environmental ones are important in causing autism. Until now, early signs and various risk factors of ASD have been suggested.
    Language English
    Publishing date 2024-01-10
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 3035377-4
    ISSN 2233-9183 ; 1225-729X
    ISSN (online) 2233-9183
    ISSN 1225-729X
    DOI 10.5765/jkacap.230040
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  4. Article: The Role of Artificial Intelligence in Gastric Cancer: Surgical and Therapeutic Perspectives: A Comprehensive Review.

    Lee, JunHo / Lee, Hanna / Chung, Jun-Won

    Journal of gastric cancer

    2023  Volume 23, Issue 3, Page(s) 375–387

    Abstract: Stomach cancer has a high annual mortality rate worldwide necessitating early detection and accurate treatment. Even experienced specialists can make erroneous judgments based on several factors. Artificial intelligence (AI) technologies are being ... ...

    Abstract Stomach cancer has a high annual mortality rate worldwide necessitating early detection and accurate treatment. Even experienced specialists can make erroneous judgments based on several factors. Artificial intelligence (AI) technologies are being developed rapidly to assist in this field. Here, we aimed to determine how AI technology is used in gastric cancer diagnosis and analyze how it helps patients and surgeons. Early detection and correct treatment of early gastric cancer (EGC) can greatly increase survival rates. To determine this, it is important to accurately determine the diagnosis and depth of the lesion and the presence or absence of metastasis to the lymph nodes, and suggest an appropriate treatment method. The deep learning algorithm, which has learned gastric lesion endoscopyimages, morphological characteristics, and patient clinical information, detects gastric lesions with high accuracy, sensitivity, and specificity, and predicts morphological characteristics. Through this, AI assists the judgment of specialists to help select the correct treatment method among endoscopic procedures and radical resections and helps to predict the resection margins of lesions. Additionally, AI technology has increased the diagnostic rate of both relatively inexperienced and skilled endoscopic diagnosticians. However, there were limitations in the data used for learning, such as the amount of quantitatively insufficient data, retrospective study design, single-center design, and cases of non-various lesions. Nevertheless, this assisted endoscopic diagnosis technology that incorporates deep learning technology is sufficiently practical and future-oriented and can play an important role in suggesting accurate treatment plans to surgeons for resection of lesions in the treatment of EGC.
    Language English
    Publishing date 2023-06-26
    Publishing country Korea (South)
    Document type Journal Article ; Review
    ZDB-ID 2637180-7
    ISSN 2093-5641 ; 2093-582X
    ISSN (online) 2093-5641
    ISSN 2093-582X
    DOI 10.5230/jgc.2023.23.e31
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  5. Article ; Online: Engineering Two-Dimensional Nodal Semimetals in Functionalized Biphenylene by Fluorine Adatoms.

    Mo, Seongjun / Seo, Jaeuk / Son, Seok-Kyun / Kim, Sejoong / Rhim, Jun-Won / Lee, Hoonkyung

    Nano letters

    2024  

    Abstract: We propose a band engineering scheme on the biphenylene network, a newly synthesized carbon allotrope. We illustrate that the electronic structure of the biphenylene network can be significantly altered by controlling conditions affecting the symmetry ... ...

    Abstract We propose a band engineering scheme on the biphenylene network, a newly synthesized carbon allotrope. We illustrate that the electronic structure of the biphenylene network can be significantly altered by controlling conditions affecting the symmetry and destructive interference of wave functions through periodic fluorination. First, we investigate the mechanism for the appearance of a type-II Dirac fermion in a pristine biphenylene network. We show that the essential ingredients are mirror symmetries and stabilization of the compact localized eigenstates via destructive interference. While the former is used for the band-crossing point along high symmetry lines, the latter induces highly inclined Dirac dispersions. Subsequently, we demonstrate the transformation of the biphenylene network's type-II Dirac semimetal phase into various Dirac phases such as type-I Dirac, gapped type-II Dirac, and nodal line semimetals through the deliberate disruption of mirror symmetry or modulation of destructive interference by varying the concentration of fluorine atoms.
    Language English
    Publishing date 2024-04-12
    Publishing country United States
    Document type Journal Article
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.4c00314
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  6. Article: Effect of the PSSMA Content on the Heat Transfer Performances of Polyurea Nano-Encapsulated Phase Change Materials.

    Kook, Jun-Won / Hwang, Kiseob / Lee, Jun-Young

    Materials (Basel, Switzerland)

    2021  Volume 14, Issue 12

    Abstract: Polyurea nano-encapsulated phase change materials (PUA-NEPCMs) were prepared from ... ...

    Abstract Polyurea nano-encapsulated phase change materials (PUA-NEPCMs) were prepared from an
    Language English
    Publishing date 2021-06-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2487261-1
    ISSN 1996-1944
    ISSN 1996-1944
    DOI 10.3390/ma14123157
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  7. Article ; Online: Clip-Detector Using a Neodymium Magnet to Locate Malignant Tumors during Laparoscopic Surgery.

    Yoon, Kicheol / Kim, Kwang Gi / Chung, Jun-Won / Lee, Won Suk

    Sensors (Basel, Switzerland)

    2022  Volume 22, Issue 14

    Abstract: During laparoscopic surgery for colorectal or gastric cancers, locating the tumor for excision is difficult owing to it being obscured by mucous membranes. Therefore, a clip can be installed around the tumor, which can be located using a sensor. Most of ... ...

    Abstract During laparoscopic surgery for colorectal or gastric cancers, locating the tumor for excision is difficult owing to it being obscured by mucous membranes. Therefore, a clip can be installed around the tumor, which can be located using a sensor. Most of the clip-detectors developed thus far can only detect tumors in either the colon or stomach and require a wire to connect the clip and detector. This study designs a clip and detector that can locate a tumor in the stomach and colon. The clip contains a neodymium magnet that generates a magnetic field, and the detector includes a Colpitts oscillator that allows magnetic coupling of the clip and detector. After installing the prepared clip at the tumor location, the detector is used to locate the clip. To test the clip and detector, we conducted animal experiments, during which four clips were installed in the colon and stomach of a mini pig. We succeeded in locating the clips within 2.17 and 3.14 s in the stomach and colon, respectively, which were shorter than the detection times reported in previous studies. The demand for laparoscopic surgery and endoscopes is predicted to increase owing to this method.
    MeSH term(s) Animals ; Laparoscopy ; Magnets ; Neodymium ; Stomach Neoplasms ; Surgical Instruments ; Swine ; Swine, Miniature
    Chemical Substances Neodymium (2I87U3734A)
    Language English
    Publishing date 2022-07-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s22145404
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  8. Article ; Online: Development of a New Liquid Type Rapid Urease Test Kit (Helicotest

    Lee, Hannah / Hwang, Hyo Sang / Chung, Jun-Won / Kim, Kyeong Ah / Kim, Seon Tae

    The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi

    2023  Volume 81, Issue 5, Page(s) 209–215

    Abstract: Background/aims: A quick and accurate diagnosis of : Methods: Two : Results: The detection of : Conclusions: Compared to other RUT kits, ... ...

    Abstract Background/aims: A quick and accurate diagnosis of
    Methods: Two
    Results: The detection of
    Conclusions: Compared to other RUT kits, Helicotest
    MeSH term(s) Humans ; Urease ; Helicobacter pylori
    Chemical Substances Urease (EC 3.5.1.5)
    Language English
    Publishing date 2023-05-25
    Publishing country Korea (South)
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2611091-X
    ISSN 2233-6869 ; 1598-9992
    ISSN (online) 2233-6869
    ISSN 1598-9992
    DOI 10.4166/kjg.2022.139
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 6910: Show issues Location:
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  9. Article: Prospective Evaluation of a New Liquid-Type Rapid Urease Test Kit for Diagnosis of

    Kim, Seung Han / Kim, Kyeong Ah / Joo, Moon Kyung / Lee, Hannah / Chung, Jun-Won / Yun, Sung-Cheol / Kim, Seon Tae

    Diagnostics (Basel, Switzerland)

    2024  Volume 14, Issue 7

    Abstract: Background/aims: Rapid and accurate diagnostic tools are essential for the timely recognition of Helicobacter pylori (: Method: In this prospective study, consecutive dyspeptic or check-up patients referred to our clinic for endoscopy were assessed ... ...

    Abstract Background/aims: Rapid and accurate diagnostic tools are essential for the timely recognition of Helicobacter pylori (
    Method: In this prospective study, consecutive dyspeptic or check-up patients referred to our clinic for endoscopy were assessed to evaluate the rapidity and accuracy of a novel liquid-type RUT (Helicotest
    Results: Among the 177 enrolled patients, 38.6% were infected with
    Conclusions: Compared to the commonly used RUT, the new liquid-type RUT presented faster and reliable results. Such findings could improve
    Language English
    Publishing date 2024-03-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662336-5
    ISSN 2075-4418
    ISSN 2075-4418
    DOI 10.3390/diagnostics14070700
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  10. Article ; Online: Enhancing Disease Classification in Abdominal CT Scans through RGB Superposition Methods and 2D Convolutional Neural Networks: A Study of Appendicitis and Diverticulitis.

    Lee, Gi Pyo / Park, So Hyun / Kim, Young Jae / Chung, Jun-Won / Kim, Kwang Gi

    Computational and mathematical methods in medicine

    2023  Volume 2023, Page(s) 7714483

    Abstract: The primary symptom of both appendicitis and diverticulitis is a pain in the right lower abdomen; it is almost impossible to diagnose these conditions through symptoms alone. However, there will be misdiagnoses happening when using abdominal computed ... ...

    Abstract The primary symptom of both appendicitis and diverticulitis is a pain in the right lower abdomen; it is almost impossible to diagnose these conditions through symptoms alone. However, there will be misdiagnoses happening when using abdominal computed tomography (CT) scans. Most previous studies have used a 3D convolutional neural network (CNN) suitable for processing sequences of images. However, 3D CNN models can be difficult to implement in typical computing systems because they require large amounts of data, GPU memory, and extensive training times. We propose a deep learning method, utilizing red, green, and blue (RGB) channel superposition images reconstructed from three slices of sequence images. Using the RGB superposition image as the input image of the model, the average accuracy was shown as 90.98% in EfficietNetB0, 91.27% in EfficietNetB2, and 91.98% in EfficietNetB4. The AUC score using the RGB superposition image was higher than the original image of the single channel for EfficientNetB4 (0.967 vs. 0.959,
    MeSH term(s) Humans ; Abdomen/diagnostic imaging ; Appendicitis/diagnostic imaging ; Diverticulitis/diagnostic imaging ; Image Processing, Computer-Assisted/methods ; Neural Networks, Computer ; Tomography, X-Ray Computed
    Language English
    Publishing date 2023-05-29
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2252430-7
    ISSN 1748-6718 ; 1748-670X ; 1027-3662
    ISSN (online) 1748-6718
    ISSN 1748-670X ; 1027-3662
    DOI 10.1155/2023/7714483
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