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홍강의,장경준,문형로,안동현,손세정,박순미 大韓神經精神醫學會 1988 신경정신의학 Vol.27 No.2
A child abuse case of an 18 month-old baby girl with multiple fractures is reported. A comprehensive psychiatric and pediatric diagnostic work-up was carried out, and psychodynamic and family dynamic issues were presented in detail. A therapeutic intervention by pediatric-psychiatric team was attempted, but thwarted by the lack of father's cooperation. It is suggested that child abuse should be considered a major medical social problem in Korea too.
Hypoxic methane oxidation coupled to denitrification in a membrane biofilm
Alrashed, Wael,Lee, Jangho,Park, Joonhong,Rittmann, Bruce E.,Tang, Youneng,Neufeld, Josh D.,Lee, Hyung-Sool Elsevier 2018 Chemical engineering journal Vol.348 No.-
<P><B>Abstract</B></P> <P>Methane oxidation coupled to denitrification (MOD) was tested in a membrane biofilm reactor (MBfR) using methane gas as the sole electron donor. Nitrate reduction to nitrite was rate limiting, and CH<SUB>4</SUB> was present in the effluent. Slow kinetics of methane oxidation by bacteria were the factors that led to slow kinetics and incomplete removals. <I>Methylocystaceae</I> contained the largest fraction (21%) of bacterial SSU rRNA genes, and Archaea were nearly absent. The functional metagenome included all the genes essential for aerobic methane oxidation (<I>pmo, mdh, mtdB, folD,</I> and <I>fdh</I>) and nitrate reduction to dinitrogen (<I>nap/nar, nir, nor</I> and <I>nos</I>), but not for reverse methanogenesis (<I>mcr</I>). The functional metagenome supports that <I>Methylocystaceae</I> conducted MOD in syntrophy with heterotrophic denitrifiers (e.g., <I>Comamonadaceae</I> and <I>Brucellaceae</I>), suggesting aerobic MOD. DO measurements, serum-bottle tests, and calculation of O<SUB>2</SUB> permeation bolster hypoxically aerobic MOD would mainly account for denitrification in the MBfR.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nitrate removal increased by 85% in the methane-utilizing MBfR. </LI> <LI> Slow kinetics of MOD microorganisms caused methane leakage to liquid. </LI> <LI> Metagenome identified all genes essential for aerobic methane oxidation. </LI> <LI> <I>Methylocystaceae</I> and diverse denitrifiers conducted MOD syntrophically. </LI> </UL> </P>
Hyung Keun Lee,E Hyun Shin,Young Kyu Park,Ki Seok Oh,Seung Ho Kang,Young Cheol Yang,Young Joon Ahn 한국응용곤충학회 2011 한국응용곤충학회 학술대회논문집 Vol.2011 No.05
Field research was undertaken for recovering mosquito larval mermithid parasite, Romanomermis species in rice fields in 54 different areas in period of May through October, 2009. Of 54 area rice fields surveyed, Romanomermis sp. recoveries were made from 4 areas. 32 Anopheles mosquito larvae, malaria disease vector were infected and died from samples collected in Pochon area, and a total of 10 Culex mosquito larvae, house frequenting mosquito were infected to death in 3 different areas, Gimpo, Sangju and Gurae, respectively. On the basis of positive natural infection record, an intensive host-parasite occurrences and/or population study was surveyed in foci area of Pochon in small pond (P) and Rice paddies (A and B) during 5 months till end of October. The natural mermithid infection was continuously occurred from June through October in weekly samples, however the rate of infection was appeared higher in June-July, thereafter the rate gradually decreased in progress of the season. The highest natural infection rate was observed from the Pond 9.1% followed by Rice paddy "A" 5.2%, Rice paddy "B" 2.4%, respectively. Including 2 other Rice paddies "C" and "D", a total mosquito larvae collected was 3,270, an overall average natural infection rate was recorded as 3.7% (121 Anopheles mosquito larvae infected).