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Jang, Yunho,Lee, Haet-Nim,Kim, Narae,Ok, Yu Sin,Kim, Tae-woon,Jung, Suk Chan,Kim, Jae-Myung The Korean Society of Veterinary Service 2016 韓國家畜衛生學會誌 Vol.39 No.4
Mycobacterium avium subspecies paratuberculosis (MAP) causes Johne's disease (JD) in ruminants. This is the first large scale report to estimate the herd-level prevalence of antibodies against MAP by using an ELISA to detect antibodies in bulk tank milk (BTM) samples. The samples were collected from January 2011 to November 2011, from 636 herds of the dairy farms in the Gyeonggi and Chungbuk areas of Korea. The overall apparent prevalence of MAP antibody-positive herds was 8.5%, and regional prevalence were 32/440 (7.3%) and 22/196 (11.2%) of dairy farms in the Gyeonggi and Chungbuk areas, respectively. The results did not differ significantly by region. While we have determined the prevalence rate of MAP in the Gyenoggi and Chungbuk areas in this study, there is a continuing need for well-designed studies to calculate the prevalence of MAP in dairy herds based on culture and molecular findings.
Diode Laser—Can It Replace the Electrical Current Used in Endoscopic Submucosal Dissection?
Yunho Jung,Gwang Ho Baik,Weon Jin Ko,Bong Min Ko,Seong Hwan Kim,Jin Seok Jang,Jae-Young Jang,Wan-Sik Lee,Young Kwan Cho,Sun Gyo Lim,Hee Seok Moon,In Kyung Yoo,Joo Young Cho 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.4
Background/Aims: A new medical fiber-guided diode laser system (FDLS) is expected to offer high-precision cutting withsimultaneous hemostasis. Thus, this study aimed to evaluate the feasibility of using the 1,940-nm FDLS to perform endoscopicsubmucosal dissection (ESD) in the gastrointestinal tract of an animal model. Methods: In this prospective animal pilot study, gastric and colorectal ESD using the FDLS was performed in ex vivo and in vivoporcine models. The completeness of en bloc resection, the procedure time, intraprocedural bleeding, histological injuries to themuscularis propria (MP) layer, and perforation were assessed. Results: The en bloc resection and perforation rates in the ex vivo study were 100% (10/10) and 10% (1/10), respectively; those inthe in vivo study were 100% (4/4) and 0% for gastric ESD and 100% (4/4) and 25% (1/4) for rectal ESD, respectively. Deep MP layerinjuries tended to occur more frequently in the rectal than in the gastric ESD cases, and no intraprocedural bleeding occurred ineither group. Conclusions: The 1,940-nm FDLS was capable of yielding high en bloc resection rates without intraprocedural bleeding duringgastric and colorectal ESD in animal models.
( Yunho Jang ),( Haet-nim Lee ),( Narae Kim ),( Yu Sin Ok ),( Tae-woon Kim ),( Suk Chan Jung ),( Jae-myung Kim ) 한국가축위생학회 2016 韓國家畜衛生學會誌 Vol.39 No.4
Mycobacterium avium subspecies paratuberculosis (MAP) causes Johne`s disease (JD) in ruminants. This is the first large scale report to estimate the herd-level prevalence of antibodies against MAP by using an ELISA to detect antibodies in bulk tank milk (BTM) samples. The samples were collected from January 2011 to November 2011, from 636 herds of the dairy farms in the Gyeonggi and Chungbuk areas of Korea. The overall apparent prevalence of MAP antibody-positive herds was 8.5%, and regional prevalence were 32/440 (7.3%) and 22/196 (11.2%) of dairy farms in the Gyeonggi and Chungbuk areas, respectively. The results did not differ significantly by region. While we have determined the prevalence rate of MAP in the Gyenoggi and Chungbuk areas in this study, there is a continuing need for well-designed studies to calculate the prevalence of MAP in dairy herds based on culture and molecular findings.
Low-Complexity and Low-Power MIMO Symbol Detector for Mobile Devices with Two TX/RX Antennas
Jang, Soohyun,Lee, Seongjoo,Jung, Yunho The Institute of Electronics and Information Engin 2015 Journal of semiconductor technology and science Vol.15 No.2
In this paper, a low-complexity and low-power soft output multiple input multiple output (MIMO) symbol detector is proposed for mobile devices with two transmit and two receive antennas. The proposed symbol detector can support both the spatial multiplexing mode and spatial diversity mode in single hardware and shows the optimal maximum likelihood (ML) performance. By applying a multi-stage pipeline structure and using a complex multiplier based on the polar-coordinate, the complexity of the proposed architecture is dramatically decreased. Also, by applying a clock-gating scheme to the internal modules for MIMO modes, the power consumption is also reduced. The proposed symbol detector was designed using a hardware description language (HDL) and implemented using a 65nm CMOS standard cell library. With the proposed architecture, the proposed MIMO detector takes up an area of approximately $0.31mm^2$ with 183K equivalent gates and achieves a 150Mbps throughput. Also, the power estimation results show that the proposed MIMO detector can reduce the power consumption by a maximum of 85% for the various test cases.