Distribution of the Fairy Pitta (Pitta nympha) in the South Korea: A focus on protected areas

Gil-Pyo Hong(홍길표),Jae-Hoon Kim(김재훈),Seul-Gi Seo(서슬기),So-Yeon Cho(조소연),Bo-Yeon Hwang(황보연),Jong-Hyun Park(박종현),Seung-Yeon Lee(이승연),Ga-Young Kim(김가영),Wan-Hee Nam(남완희),Ha-Cheol Sung(성하철) 한국조류학회 2021 한국조류학회지 Vol.28 No.2

국내 팔색조(Pitta nympha) 분포 현황을 알아보고자 전국 국립공원 등 보호지역 중심으로 총 19개 지역을 조사하였고, 전문가 네트워크를 통해 자료를 보강하였다. 전국 19개 지역을 조사한 결과 북한산, 지리산 등 내륙지역 7개 국립공원에서는 팔색조가 확인되지 않았고, 경남 거제, 남해, 해남, 장흥 고흥 등 남해안과 인접한 12개 지역에서 팔색조 서식이 확인되었다. 또한 전문가 네트워크를 통해 수집한 팔색조 출현 위치 정보 82건을 분석한 결과, 전국 8개 광역지자체 모두 팔색조 서식이 확인되었고, 내륙지역(26.8%)보다 해안지역(73.2%)에서 더 많이 출현하였다. 연구 결과를 종합해보면, 우리나라의 팔색조는 주로 제주도와 남해안 지역을 중심으로 많이 분포하며, 그 보다 적은 개체수가 내륙 지역에 넓게 분포하고 있는 것으로 나타났다. The present study investigated the current distribution of Fairy Pitta (Pitta nympha) in South Korea. A total of 19 study areas, including protected areas such as national and provincial parks in South Korea were surveyed, and additional data obtained from an expert network. According to the results, Fairy Pitta was absent in seven inland national parks, including Mt. Bukhan and Chiri parks. Fairy Pitta inhabited 12 areas near the southern coast of South Korea, including Geoje, Namhae, Haenam, Jangheung, Goheung, and Gyeongnam Province. The analysis results of 82 datasets obtained from experts with regard to the locations where Fairy Pitta have been spotted showed that the bird inhabits all the eight metropolitan regions in South Korea, and is more frequently spotted in coastal areas (73.2%) than in inland areas (26.8%). The findings demonstrate that Fairy Pitta is mainly distributed in Jeju Island and the southern coast of South Korea, and is distributed in inland areas at relatively lower numbers.

때까치(Lanius bucephalus)의 비번식기 먹이꽂이 행동에 관한 연구

박경현(Park, Kyung-hyun),김지연(Kim, Ji-yeon) 한국조류학회II 2020 한국조류학회지 Vol.27 No.1

2003~2009년 10월부터 다음해 2월까지 길동생태공원에서 때까치의 먹이꽂이 212개를 조사한 결과, 11월 중순부터 먹이꽂이가 급격히 증가하여 추위가 본격화되기 전 먹이를 저장함을 알 수 있었다. 먹이꽂이에 이용된 동물은 메뚜기목과 양서강이 가장 많았고, 그 외 절지, 연체, 환형, 척추동물문의 다양한 먹이를 겨울철 먹이로 이용하였고, 2개월 내에 70%가량이 없어졌다. 먹이꽂이 높이는 평균 131.5cm로, 아까시나무와 버드나무를 주로 이용하였으나, 그 외 다양한 수종도 이용하였다. 수종보다는 먹이를 꽂기 쉬운 높이의 수목 중 DBH 3cm미만인 교목을 선호하였다. 먹이꽂이와 관찰로의 거리를 조사한 결과, 관찰로 주변을 더 선호하였다. 길동생태공원에서 비번식기에 서식하는 때까치의 먹이꽂이 행동에 관한 연구 결과, 도시 비오톱에서 때까치의 비번식기 서식을 위하여 먹이원이 되는 곤충과 양서류 등 종다양성을 높게 유지하는 것이 필요하며, 일정한 거리 내에 습지와 개방된 초지, 산림이 어우러진 수직적 자연경관을 유지해야 함을 알 수 있었다. 2003~2009 from every October to following February(7 years), we have observed 212 impaled preys of Lanius bucephalus in Gildong Ecological Park. As a result, we got to know that the number of impaled preys sharply increased from the middle of November in every year, and the food storage of preys has been completed before severely cold time. The main preys used for its impalement were orthoptera and amphibia. Besides, various preys such as arthropoda, mollusca, annelida and vertebrate were also used as impaled food for winter time. And 70% of its cache of preys disappeared within 2 months. The impalement location on a tree was 131.5cm high of trees on average. And then it mainly used Salix koreensis and Robinia pseudoacacia for impalement but it also used various other trees. It preferred the trees of which DBH(Diameter at Breast Height) is less then 3cm among the trees of easy-to-impale height rather than wood species. According to examining the distance between impalement and observation road, it is recognized that Lanius bucephalus liked the surrounding area of observation road. As a result of this study on impaling behavior of Lanius bucephalus in non-breeding season in Gildong Ecological Park, for the inhabitation of Lanius bucephalus in non-breeding season at the biotop in urban area, we got to know it is required that biodiversity on food source such as insect and amphibian etc. should be kept in a high level, and also within a certain boundary, vertical natural landscape which combines wetlands, open pastures and forest should be maintained.

Protein kinase A-induced phosphorylation at the Thr154 affects stability of DJ-1

Ko, Yeon Uk,Kim, Su-Jeong,Lee, Juhyung,Song, Min-Young,Park, Kang-Sik,Park, Jun Bae,Cho, Hyun-Soo,Oh, Young J. Elsevier 2019 Parkinsonism & related disorders Vol.66 No.-

<P><B>Abstract</B></P> <P><B>Introduction</B></P> <P>Most cases of Parkinson's disease (PD) are sporadic, but genetic variations have been discovered in PD patients. PARK7/DJ-1 is a known cause of early-onset autosomal-recessive PD and is implicated in neuroprotection against oxidative stress. Although several post-translational modifications of DJ-1 have been proposed, phospho-modification of DJ-1 and its functional consequences have been less studied.</P> <P><B>Methods</B></P> <P>Putative phosphorylation sites of DJ-1 were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS analysis). Subsequently, phosphorylation site of DJ-1 was confirmed by <I>in vitro</I> kinase assay and cell-based pull-down assay. Impaired dimer formation of phospho-null mutant was measured using DSS crosslinking assay and immunoprecipitation assay. To evaluate physiological consequences of this event, protein stability of DJ-1 WT and DJ-1 phospho-null mutant were compared using cycloheximide chase assay and ubiquitination assay.</P> <P><B>Results</B></P> <P>Here, we showed that DJ-1 directly bound to the catalytic subunit of protein kinase A (PKAcα). We found that PKAcα is responsible for phosphorylation of DJ-1 at the T154 residue. Interestingly, dimerization of DJ-1 was not detected in a DJ-1 T154A mutant. Furthermore, stability of the DJ-1 T154A mutant was dramatically reduced compared with that of wild-type DJ-1. We found that DJ-1 T154A was prone to degradation by the ubiquitin proteasome system (UPS).</P> <P><B>Conclusion</B></P> <P>We identified a novel phosphorylation site of DJ-1. Furthermore, we determined protein kinase A that is responsible for this posttranslational modification. Finally, we demonstrated physiological consequences of this event focusing on dimerization and protein stability of DJ-1.</P> <P><B>Highlights</B></P> <P> <UL> <LI> PKAcα phosphorylates PARK7/DJ1 at the Thr154 residue. </LI> <LI> Disruption of Thr154 phosphorylation is linked to a lower stability. </LI> </UL> </P>

문학,문화 : 디지털 시대 도시의 생태학적 전망

이경래 ( Kyung Lae Lee ),박규현 ( Kyou Hyun Park ),조연정 ( Yeon Jung Cho ) 경희대학교 비교문화연구소 2012 비교문화연구 Vol.26 No.-

City`s Ecological Landscape in the Digital Age Lee Kyung-Lae, Park Kyou-Hyun, Cho Yeon-Jung We all know how beautiful our wild and it`s importance to our living planet Earth. But did you realise the speed at which man himself is damaging it`s unique natural habitat. We are well on our way to destroy our forests, plants, wetlands. We are polluting our oceans and seas. This way, we`re driving numerous animal species, plant species and many others into extinction. Everyone should be aware of the importance of our natural environment. We live in the period of echocide. Why we need nature to survive and how we can deal with the environmental problems we face. This paper has the purpose to reform city`s environment. Because, Metropolis and megalopolis are the principal cause of environmental disruption. To reform the city is needed to consider digital technology in our age. In the face of economic and cultural globalization, many have argued that we live an increasingly placeless world. However, as a growing number of cities participate and compete in key marketplaces of advanced capitalism, the spectacle of the city is more than ever a significant medium of communication in its own right. In doing so, this work is focused specifically on the dimension of city`s media environment. To that end, the paper examined U-City and U-Eco city. In this study, we will introduce the study on model of U-Eco City as one way for the eco-freindly future city.

주물사업장에서 발생하는 호흡성분진의 농도 및 석영함유량에 관한 연구

박용선,노영만,김현욱,한진구,안연순,강성규,김정만 한국산업위생학회 2003 한국산업보건학회지 Vol.13 No.1

This study was performed to measure and evaluate the concentration of respirable dust and quartz content at molding and shakeout process in the foundry. The 129 samples in 30 foundries were collected using 10mm Dorr-Oliver nylon cyclone and analysed for quartz concent by Fourier Transform Infrared Spectroscopy. The average quartz concentrations in the respirable dust was 0.0273mg/㎡ and ranged from 0.0007 to 0.3757mg/㎥. The average quartz concentrations of shakeout process wsa significantly higher than that of molding in the foundry. The average of respirable dust in foundry 102129mg/㎡ and ranged from 0.1524 to 7.0428mg/㎥. But there is no significant difference between molding and shakeout processes. The average contents of quartz for OEL-MOL was 2025% and ranged from 0.05 to 32.79% The non-compliance rates for quartz were 22.96% in Korea-OEL and 34.01% in ACGIH-TLV and NIOSH-REL, and 35.03% in OSHA-PEL. The airbome dust in the foundry was effectively controlled when local exhaust ventilation and/or wetting system were operated. The result of this study therefore showed that the engineering controls and periodic environmental suveillance in foundry will be very important for preventing the health effects of workers exposed to quartz.

저장기간에 따른 오이김치의 비타민 C 및 클로로필 함량변화

박미란,이연정,고즈쿠에 노부유키,한재숙,최석현,허성미,한경필,최수근 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.5

This study was carried out to examine the changes of pH, chlorophyll, chlorophyll patterns and ascorbic acid contents, and sensory evaluation in Oi-Kimchi by the different periods of storage. The contents of chlorophyll a and b were 52.2% and 14.44% at storage 0 days, 20.67% and 16.99% at storage 11 days, 0% at storage 14 days, and decreased with storage times increased. But, phephorbide a and b were increased with storage times increased until storage 11 days, and were 28.44% and 1.25% at storage 0 days, 42.63% and 15.79% at storage 11 days, 0% at storage 12, 14 days. The contents of ascorbic acid were increased until storage 4 days, but afterwards were decreased with storage times increased, and were 2.57㎎% at storage 0 days, 5.49㎎% and 2.95㎎% at storage 11 days, 0% at storage 14 days. Sensory evaluations of appearance, flavor, taste, texture, overall acceptability showed the highest at storage 8 days, and disliked after storage 10 days.

성인남자에서 등척성 근력과 등속성 근력에 관한 비교 연구

박수연,최현희,박철빈 경희대학교 체육과학연구소 1999 體育學論文集 Vol.27 No.-

The purpose of this study was to evaluate the difference of isometric and isokinetic muscular strength in collegiate athletes and general students. Sixty players(15 basketball players, 15 icehockey players, 15 baseball players, 15 soccer players) and fifteen volunteered male students were measured using versatile muscle power measuring system and Cybex 770 dynamometer. Grip strength, arm strength and leg strength were measured for isometric muscular strength. And flexion and extension of shoulder, elbow and knee at 60deg/sec(5 repetitions), 180deg/sec(5 repetitions) were measured for isokinetic muscular strength. The results were as follows : 1.Among isometric muscular strength, the highest grip strength was 47.8kg in baseball players, the highest arm strength(flexion and extension) were 18.4kg, 33.4kf in icehockey players, the highest leg flexion strength was 29.2kg in icehockey players and leg extension strength was 69.0kg in baseball players. 2.Among isokinetic muscular strength, the highest peak torque at 60deg/sec among groups were as follows : shoulder flexion in icehockey players(72.6Nm), extension in baseball players(82.4Nm) : elbow flexion and extension in icehockey players(60.1Nm, 76.7Nm) players(82.4Nm) : knee flexion in basketball players(147.0Nm) extension in icehockey players(239.3Nm). 3.The highest average power at 180deg/sec among groups were as follows : shoulder flexion and extension in baseball players(106.0watt, 121.5watt) : elbow flexion and extension in basketball players(69.1watt, 99.7watt) : knee flexion and extension In basketball players(197.7watt, 321.7watt). 4.There were significant in coefficiency correlationship(r=0.468) between isometric arm flexion strength and isokinetic peak torque of elbow. And the coefficiency correlationship between isometric arm flexion strength and isokinetic peak torque of shoulder was 0.344. The coefficiency correlationship between isometric left leg flexion and extension strength and isokinetic peak torque of knee flexion and extension were 0.460, 0.562 respectively.

Glass-ionomer 시멘트 이장재의 5급와동 치은측 변연폐쇄효과

박연준,손호현 全北大學校 齒醫學硏究所 1987 전북치대논문집 Vol.5 No.1

The purpose of this study is to evaluate the gingival margin sealing effect of glass-ionomer lining cements in Class V cavities. Freshly extracted 120 human teeth were divided into 4 groups. V-shaped cavity was prepared on the cervical area of facial surface of each tooth. Except the 1 ㎜ inner area from the gingival margin, exposed dentin surface was lined with Dycal in Group 1, Lining cement in Group 2 and Chembond cement in Group 3. No liner was used in Group 4. Prepared enamel surface in Group 1 and Group 4 was etched. In Group 2 and Group 3, prepared enemel surface and lined cement surface were etched simultaneously. After etching, washing and drying, bonding agent was applied and cured, and composite resin was inserted and cured with light in every cavity of teeth of all Groups. Restored teeth were thermocycled altenatively in 2% methlene blue dye solution of 4℃ and 60℃. After that, with diamomd disk under water spray, they were sectioned faciolingually to be divided equally. Dye penetration on the sectioned surface was observed with stereomicroscope. After statistical analysis, the following results were obtained : 1. There was significant difference in gingival margin sealing effect in lined cavities, except those lined with Chembond cement, compared with unlined cavities (p<0.01). 2. There was no significant difference in gingival margin sealing effect of glass-ionomer lining cements such as Lining cement and Chembond cement compared with that of Dycal (p>0.05).

단기배양을 통한 말초혈액 CD34 양성세포의 체외증폭

박상준,김철희,배광봉,김현수,김종숙,윤환중,조덕연,김삼용 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.1

Background: It is suggested that clinical practice in the areas of bone marrow transplantation and gene therapy might rely on the ex vivo expansion of hematopoietic stem/progenitor cells. However, the condition for ex vivo expansion of hematopoietic progenitor cells is not well established. The authors pursued a series of experiments to define the proper conditions for the expansion of hematopoietic cells in the short-term liquid suspension culture of mobilized peripheral blood CD34+ cells. Methods: 1.0ml cultures were initiated with 9×10^3 PB CD34+ cells, which were isolated from PB mononuclear cells (MNCs) by high-gradient cell sorting, in 12 well plates with the various combinations of hematopoietic growth factors(HGF). The following recombinant human HGFs were used: stem cell factor(SCF) 100ng/ml, granulocyte colony-stimulating factor(G-CSF) 100ng/ml, GM-CSF(granulocyte, macrophage colony-stimulating factor) 100ng/ml, interleukin-1 beta(IL-1B) 1ng/ml, interleukin-3(IL-3) 20ng/ml, interleukin-6 (IL-6) 100ng/ml. At the end of culture, colony-forming cells were evaluated by semisolid clonogenic assay. Results: 1) Using the high-gradient magnetic sorting system, CD34^+ cells were isolated with a yield of 40 3% 2) In 7 day culture of PB CD34^+ cells(9×10^3 cells), nucleated cells expanded mean 10×10^3(range, 9 to 20×10^3) with the addition of SCF alone, 35×10^3(range, 10 to 60×10^3) with SCF plus G-CSF plus GM-CSF, and 130×10^3(range, 40 to 300×10^3) with the combination of SCF, G-CSF, IL-1, IL-3, IL-6, GM-CSF. In 14 day culture, nucleated cells expanded 10×10^3 to 1,860×10^3 with combination of human hematopoietic growth factors. 3) In 10 day culture without medium change of PB CD34^+ cells, CFU-GM numbers expanded 16. 5 fold(range, 7 to 59 fold) with the addition of SCF plus G-CSF plus Il-1 plus IL-3, 31.3 fold(range, 20.5 to 101.1 fold) with the combination of SCF, G-CSF, IL-1, IL-3, GM-CSF. In 14 day culture with or without medium change of PB CD34^+ cells was inferior to 10 day culture for CFU-GM expansion. 4) There was no significant difference for CFU-GM expansion between five growth factors(SCF,G-CSF,IL-1,IL-3,GM-CSF) and six growth factors(five growth factors plus IL-6). Conclusion: The authors could confirm that short-term suspension culture of peripheral blood CD34+ cells could expand hematopoietic progenitor cells. Ten-day culture with medium change of CD34+ cells with the addition of five growth factors, i.e. SCF, G-CSF, IL-1B, IL-3, and GM-CSF, might be the most efficient in this system.

정신분열병과 Neuregulin 1 유전자의 연합연구

박동연,이유상,조은영,조승희,장용이,전현옥,장수연,윤세창,김종원,홍경수 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.3

Objectives : The authors recently found a suggestive evidence of linkage of chromosome 8p21-12 to schizophrenia in Korean multiplex families. Neuregutin 1 (NRGI) was identified in this locus as a positional and functional candidate gene for Schizo-phrenia, through several independent studies with European and Chinese populations. The purpose of this study is to determine whether NRGl is associated with schizophrenia in Korean population. Methods : Three SNPs (SNP8NRG221533, SNP8NRG241930, SNP8NRG243177) and two microsatellites markers (478B14-848,420M9-1395) located at the 5' end of NRGI were genotyped for 242 unrelated schizophrenia patients and the same num-ber of normal controls. Genetic association was tested by χ²-test (df=1). Not only for the whole patients group but also for asubgroup of patients with auditory hallucination. This subtype showed stronger linkage with chromosome 8p12 in the prior study of the authors with multiplex families. Results : G allele of SNP8NRG241930 was significantly in excess in the subgroup of patients with auditory hallucination compared to the control group (p=0.03, 0R=1.76). We also found that 3 SNPs haplotype TTC (p=0.04, 0R=0.58) and five markers haplotype TTC53 (p=0.01,0R=0.49) were associated with schziophrenia with a protective effect. Three SNPs haplotype CGT which is a part of the at-risk haplotype of the Icelandic schizophrenia families was found in excess in the patients group but no significant association was observed. Conclusion : NRGI might either play a mle in the predisposition to schizophrenia or be in linkage disequilibrium with a causal locus of this illness.