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Associations of night shift status during pregnancy with birth outcomes
Se Jin Lee(Se Jin Lee),Chorong Kim(Chorong Kim),Eun Ju Lee(Eun Ju Lee),Myoung-Nam Lim(Myoung-Nam Lim),Jeeyoung Kim(Jeeyoung Kim),Sunghun Na(Sunghun Na),Woo Jin Kim(Woo Jin Kim),Ko-CHENS study group(Ko 한국환경보건학회 2022 한국환경보건학회 학술대회 자료집 Vol.2022 No.5
Chorong Lee,Soohwan Kim,Jaehyeong Shin,Min-Gi Kim,Buddhi E. Gunathilaka,Sung Hun Kim,Ji Eun Kim,Seung-Cheol Ji,Jee Eun Han,Kyeong-Jun Lee 제주대학교 해양과학연구소 2021 해양과환경연구소 연구논문집 Vol.45 No.-
This study was conducted to evaluate the dietary supplementation of two Bacillus spp. on digestibility, growth performance, innate immunity, and water ammonia level of Litopenaeus vannamei. A control diet was made without the probiotic supplementation, and four other diets were prepared by including B. subtilis (BS) alone (0.1 × 1010 and 0.2 × 1010) or a mixture of BS and B. pumilus (BP) (0.1 × 1010 and 0.2 × 1010). Quadruplicate groups of shrimp (0.14 g) were hand-fed one of the diets for 8 weeks. Shrimp fed diets containing Bacillus spp. showed significantly higher apparent digestibility coefficient of protein and dry matter than shrimp fed the control diet. The growth performance was significantly improved in shrimp fed higher dose (0.2 × 1010) of the Bacillus spp. compared to the control group. Innate immunity of shrimp fed the probiotic diets was significantly enhanced compared to the control group. In a water ammonia test, culture water of the probiotic diets had lower total ammonia concentration than that of the control diet. The results in this study suggest that Bacillus spp. can positively affect digestibility, growth performance, feed efficiency, innate immunity, and water quality for L. vannamei.
김정은 시대 북한의 습지 보전·이용 현황과 남북협력에 대한 시사점
김성환 ( Kim Seonghwan ),김민하 ( Kim Minha ),강초롱 ( Kang Chorong ) 평화문제연구소 2022 統一問題硏究 Vol.34 No.2
Since Supreme Leader Kim Jong-un took power, North Korea has recognized the importance of the wetland ecosystem, which is a major component of the natural ecosystem, and has been attempting to systematically manage, preserve, and use wetlands. North Korea's interest stands out in establishing foundation for the wetland management system, a cooperative system for wetland conservation and sustainable use, a wetland conservation system, and promoting wetlands. The change in North Korea's perception of wetland space is largely due to the re-recognition of ecosystem services provided by wetlands. In addition, changes of circumstance faced by North Korea, such as fostering tourism industry and need to participate in the implementation of sustainable development, served as a strong driving force behind the re-recognition of ecosystem services provided by wetlands. The North Korean authorities' interest in the preservation and use of wetlands is a welcome issue for the establishment of a community of life on the Korean Peninsula; and for the establishment of community of human. This is because the nature of wetlands inevitably requires cooperation and solidarity from the international community. It is necessary to elicit North Korea's demand for cooperation reflected in the change of wetland space perception and to gradually promote inter-Korean wetland cooperation based on the results.
김초롱(Chorong Kim),김수미(Sumi Kim),이소은(Soeun Lee),박선주(Sunju Park),정은미(Eunmi Jung),김현기(Hyenki Kim) 한국정보기술학회 2018 Proceedings of KIIT Conference Vol.2018 No.6
본 논문에서는 IoT 기술을 이용하여 전기, 수도, 가스의 양을 실시간으로 모니터링하고, 누적 사용량도 확인할 수 있는 시스템을 설계하였다. 상시 모니터링을 통해 누진세 예방 및 사용량을 조절하여 에너지를 절약하고, 환경을 보존할 수 있을 것이다. In this paper, IOT technology was used to monitor the amount of electricity, water, and gas in real time and design a system that can check cumulative usage. Through continuous monitoring, it will be possible to save energy and to preserve the environment by controlling the progressive tax and controlling the usage amount.
Taurine supplementation in diet for olive flounder at low water temperature
Kim, Joo-Min,Malintha, G.H.T.,Gunathilaka, G.L.B.E.,Lee, Chorong,Kim, Min-Gi,Lee, Bong-Joo,Kim, Jeong-Dae,Lee, Kyeong-Jun The Korean Society of Fisheries and Aquatic Scienc 2017 Fisheries and Aquatic Sciences Vol.20 No.9
The objective of this study was to examine the effect of dietary supplementation of taurine for juvenile olive flounder (Paralichthys olivaceus) at low water temperature ($16.4{\pm}0.36^{\circ}C$). Fish meal (FM)-based diet was used as the control diet. Four other experimental diets were prepared by adding taurine to FM-based diet at 0.25, 0.50, 1.00, and 1. 50% (T1, T2, T3, and T4, respectively). Each experimental diet was fed to triplicate groups of fish (initial mean body weight, 19.5 g) for 10 weeks. At the end of the feeding trial, growth performance and feed utilization, hematological parameters, non-specific immune responses, whole-body proximate composition, and liver mRNA expression of insulin-like growth factor-1 (IGF-1) were investigated. Feed conversion ratio was significantly reduced while protein efficiency ratio was significantly increased in taurine-supplemented groups. Hematocrit and hemoglobin were also significantly increased while plasma cholesterol levels were decreased in taurine-supplemented groups than those in the control group. Nitroblue-tetrazolium, myeloperoxidase and lysozyme activities, and plasma immunoglobulin level were significantly increased by taurine supplementation. These results suggest that dietary taurine supplementation is effective in improving growth performances, feed utilization, and innate immunity of olive flounder in low water temperature season.
Kim, Sujin,Lee, Seonyeong,Shin, Chorong,Lee, Jangwoo,Kim, Sunmi,Lee, Aram,Park, Jeongim,Kho, Younglim,Moos, Rebecca K.,Koch, Holger M.,Kim, Sungkyoon,Choi, Kyungho Elsevier 2018 International journal of hygiene and environmental Vol.221 No.4
<P><B>Abstract</B></P> <P>Parabens and triclosan have been widely used in many personal care products and cosmetics. The endocrine disrupting potential of these compounds is of increasing public health concern. The aim of this study is to understand the current exposure profile of these chemicals in last void before bedtime (night-time) and first-morning void (first-morning) urines among a Korean population and to characterize their exposure sources and pathways.</P> <P>A total of 261 people, including infants (0–2 years), toddlers (3–6 years), children (7–12 years), adolescents (13–18 years), and adults (≥19 years), were recruited, and sampled for night-time urine and first-morning urine of the following day. Methyl (MeP), ethyl (EtP), propyl (PrP) and butyl paraben (BuP), and triclosan were measured in urine. The demographic characteristics, use of personal care products, and food consumption were obtained through a questionnaire.</P> <P>Among the target compounds, EtP and MeP were most frequently detected at the highest concentrations. The median concentration of EtP in night-time urine was 32.4 μg/L (interquartile range: 8.37–82.8 μg/L), which is higher than previously reported worldwide. Unlike other test compounds, compared to those measured from first-morning urine, the EtP concentrations were significantly higher in night-time urine, suggesting the presence of different exposure sources. Among adults, the MeP and PrP concentrations in night-time urine were associated with frequent use of skin care products, colored cosmetics, bath products, toothpaste, vinyl food packaging, or consumption of canned food. The MeP and PrP concentrations were higher in females than in males, especially in night-time urine. The results of this study also show that multiple urine samples are necessary to capture the diurnal variation of non-occupational exposure to environmental chemicals, such as parabens.</P>
Kim, Minkyoung,Gajulapati, Kondaji,Kim, Chorong,Jung, Hwa Young,Goo, Jail,Lee, Kyeong,Kaur, Navneet,Kang, Hyo Jin,Chung, Sang J.,Choi, Yongseok The Royal Society of Chemistry 2012 Chemical communications Vol.48 No.93
<P>A variety of diazepinone derivatives were prepared from α-amino acids and amino alcohols by a new synthetic methodology based on ring closing metathesis as a key step. The diazepinones were coupled with ribose derivatives to afford novel diazepinone nucleosides. Among them, (4<I>R</I>)-1-ribosyl-4-methyl-3,4-dihydro-1<I>H</I>-1,3-diazepin-2(7<I>H</I>)-one (<B>3</B>) showed a potent inhibitory effect (<I>K</I><SUB>i</SUB> = 145.97 ± 4.87 nM) against human cytidine deaminase.</P> <P>Graphic Abstract</P><P>Novel diazepinones were prepared from the corresponding α-amino alcohols. The diazepinones were coupled with a ribose to afford novel diazepinone nucleosides <B>2</B> and <B>3</B> with potent inhibition against hCDA. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c2cc35484e'> </P>