뒷모습

조수근 수필미학 2015 수필미학 Vol.8 No.-

동해 영일만 쇄파대에 서식하는 곤쟁이 Archaeomysis kokuboi와 Acanthomysis nakazatoi의 성장단계에 따른 주야 및 조석간 분포

조수근,김청아,서해립,Jo, Soo-Gun,Kim, Chung-A,Suh, Hae-Lip 한국해양학회 2012 바다 Vol.17 No.2

한국 동해안 영일만 쇄파대에 서식하는 두 종의 곤쟁이, Archaeomysis kokuboi와 Acanthomysis nakazatoi의 성장 단계에 따른 주야 및 조석간의 분포에 관해 조사하였다. 곤쟁이의 채집은 썰매형 채집망을 이용하여 3 지점, 즉 수심 1 m의 해수 표층과 해저 모래 표면, 물가장자리에서 2시간 간격으로 24시간 동안 이루어졌다. Archaeomysis kokuboi의 유체는 주야간 모두 출현개체수가 없거나 매우 적어 주야간의 차이를 알 수 없었다. A. kokuboi의 미성숙개체는 해수표층에서 야간의 밀도가 주간보다 유의적으로 더 높았으나, 다른 곳에서는 주야간 밀도 차이가 없었다. A. kokuboi 성체, 특히 숫컷에서는 바닥에서 주간의 밀도가 야간보다 유의적으로 더 높았으며, 해수표층에서는 주야간 모두 전혀 출현하지 않았다. 그에 비해서 Acanthomysis nakazatoi의 경우, 유체는 모든 정점에서 주야간에 유의적인 밀도 차이가 없었으나, 바닥에서 가장 높은 밀도로 분포하였다. A. nakazatoi의 미성숙단계에서도 모든 곳에서 주야간에 유의적인 밀도 차이가 없었으며, 해수표층에는 전혀 출현하지 않았다. A. nakazatoi의 성체, 특히 암컷에서는 바닥에서 야간의 밀도가 주간보다 유의적으로 높았고, 다른 장소에서는 주야간 밀도 차이가 없었다. 두 종 곤쟁이의 밀물과 썰물 간의 밀도 차이는 A. kokuboi의 미성숙개체를 제외하고는 유의적인 차이가 없었다. A. kokuboi의 미성숙개체, 특히 숫컷은 해수표층에서 썰물 때의 밀도가 밀물 때보다 유의적으로 높았다. 쇄파대 모래해변에서 두 종의 주야간 분포는 종간에는 물론이고 종내의 성장단계에 따라서도 약간의 차이가 있었으며, 밀도변화는 주로 주야간에 의해 일어나고 조석의 영향은 크지 않은 것으로 나타났다. 또 쇄파대에서 A. nakazatoi의 개체수 밀도는 주야간 모두 A. kokuboi보다 훨씬 더 높았으며, 유체단계부터 성체에 이르기까지 높은 밀도로 주로 모래바닥에 서식하였다. 이러한 결과는 A. nakazatoi는 유체단계부터 모래 저층으로의 잠입능력이 A. kokuboi보다 더 뛰어나며 동해안 쇄파대에서 매우 잘 적응한 곤쟁이라는 것을 의미한다. This study investigated the diel and tidal distributions of the two mysids, Archaeomysis kokuboi and Acanthomysis nakazatoi, in relation to their growth stages in the sandy surf zone of Yongil Bay, located on the southeastern part of Korean Peninsula. Sampling was conducted with a sledge net at every two hours for almost 24 hours at three sites: water edge, water surface and sand bottom both in 1-m deep water areas. The abundance of Archaeomysis kokuboi juveniles was too low to count both in day and night samples. While there was no difference in immature A. kokuboi abundance between day and night in the bottom or water edge, that at the water surface was significantly higher at night than daytime. The abundance of A. kokuboi adults, especially of males, in the bottom was significantly higher in daytime than night and no individuals appeared to the water surface either day or night. In comparison, the abundance of Acanthomysis nakazatoi juveniles between day and night did not differ significantly at all the three sites, with the highest number being distributed in the bottom. The abundance of immatures between day and night also did not differ significantly and no individuals appeared to the water surface either day or night. The abundance of A. nakazatoi adults, especially females, in the bottom was significantly higher at night than daytime and there was no significant difference in abundance between day and night in the other sites. There was also no significant difference in abundances of the two species between ebb and flood tides, except for A. kokuboi immatures which appeared significantly more during the ebb tides at the water surface. Overall, the distribution of the two sympatric species, A. kokuboi and A. nakazatoi, was not the same in the sandy surf zone. Its difference seems to depend on their stages of growth, and the change in their abundance may be influenced more by diurnal rhythms than tidal effects. The population density of A. nakazatoi in the sandy surf zone was much higher than that of A. kokuboi, and relatively higher densities in all growth stages of the former were found in the sandy bottom ranging from juveniles to adults. These results indicate that A. nakazatoi has exceedingly better ability of sand burrowing even from the juvenile stage, and thus is an ecologically better adapted species in the sandy surf zone than another sympatric species, A. kokuboi.

구어 말뭉치 분석을 통한 한국어 내핵관계절 연구

조수근 고려대학교 언어정보연구소 2016 언어정보 Vol.23 No.-

The purpose of this study is to provide actual instances of Korean internally-headed relative clauses and to examine the characteristics of them. To achieve these goals, we analyzed the corpus data from Korean speakers consisting of 200 audio transcription files. The results of the analysis revealed that internally-headed relative clauses are actually used in Korean. The results of the analysis also revealed that only a subject and an object can be relativized in internally-headed relative clauses. In addition, The results showed that only a concrete noun can be allowed as head noun. The findings of the study suggest that there exist internally-headed relative clauses in Korean, but there are some syntactic and semantic-pragmatic restrictions on the use of them.

군산 연안 양식 바지락 (Tapes philippinarum)의 형태와 성장에 관한 연구

조수근 부경대학교 수산과학연구소 1995 硏究業績集 Vol.20 No.-

산출실험을 통한 한국인 성인 학습자의 영어 관계절 습득 연구

조수근 한국영어학학회 2014 영어학연구 Vol.20 No.3

Cho, Sookeun. 2014. A Study on the Acquisition of English Relative Clausesby Korean Adult Learners through an Production Test. English Language and Linguistics 20.3, 99-114. The purpose of this paper is to investigate the acquisition of English relative clauses by Korean adult learners using an production test and to determine the source of errors by analyzing error types made by Korean learners.To achieve these goals, a sentence combining test was administered on 20 Korean speakers. Thirty test sentences were created according to six types of relative clauses for a quantitative study. In this study, we found that the order of difficulty in the acquisition of relative clauses is as follows: subject < direct object = possessive< object of preposition < indirect object < object of comparison. We also found that there is statistically significant difference in regard to the order. In addition,we found that the contrasts in the acquisition of English relative clauses by Koreanlearners are mostly attributed to the fact that the processing difficulty of the gap in the relative clauses increases with its structural distance from its head according to the Structural Distance Hypothesis suggested by O’Grady(1997).

Mysidacea (Crustacea) from the Korea Strait and Its Adjacent Waters

조수근,마채우,서해립,홍성윤,Jo, Su-Geun,Ma, Chae-U,Seo, Hae-Rip,Hong, Seong-Yun The Korean Society for Integrative Biology 1998 Korean journal of biological sciences Vol.2 No.1

Thirteen pelagic species of mysids, representing nine genera, are reported from the Korea Strait and its adjacent waters. Of these, seven species, Doxomysis quadrispinosa, Meterythrops microphthalma, Pleurerythrops secunda, Pseudanchialina pusilla, Siriella gracilis, S. okadgi, and S. thompsoni, are newly recorded from the Korean waters. A taxonomic key and illustrative figures are given.

Recurrent Bilateral Branch Retinal Artery Occlusion with Hearing Loss and Encephalopathy: The First Case Report of Susac Syndrome in Korea

조수근,김중곤,권순억,이충욱,임현우,윤영희 대한의학회 2011 Journal of Korean medical science Vol.26 No.11

We report the first case of Susac syndrome in Koreans, in a 23-yr-old female patient who presented with sudden visual loss and associated neurological symptoms. Ophthalmic examination and fluorescein angiography showed multiple areas of branch retinal artery occlusion, which tended to recur in both eyes. Magnetic resonance imaging showed dotlike,diffusion-restricted lesions in the corpus callosum and left fornix, and audiometry showed low-frequency sensory hearing loss, compatible with Susac syndrome. She received immunosuppressive therapy with oral steroid and azathioprine. Three months later all the symptoms disappeared but obstructive vasculitis have been relapsing. This patient demonstrated the entire clinical triad of Susac syndrome, which tends to occur in young females. Although this disorder has rarely been reported in Asian populations, a high index of suspicion is warranted for early diagnosis and timely treatment.

한국어 내핵 관계절의 용인성에 대한 연구

조수근 대한언어학회 2014 언어학 Vol.22 No.2

The purpose of this paper is to investigate whether Korean speakers accept internally-headed relative clauses and to decide whether they are apparently shown in Korean. To achieve these goals, a judgement task constructed on the basis of grammaticality has been conducted on 62 Korean speakers. By following 4 types of internally-headed relative clauses, twenty test sentences were created for a quantitative study. The test subjects were asked to decide if the test sentence was correct or not. Their answers indicated the degree of the subjects` knowledge on internally-headed relative clauses, by responding either "right" or "wrong" to the question. The results of the study showed that Korean speakers correctly judged the grammaticality of internally-headed relative clauses at a rate of less than 70%, suggesting that they accept the existence of internally-headed relative clauses restrictively. The results of the study also showed that dative and oblique nouns are rarely selected as head nouns in internally-headed relative clauses in Korean, which is consistent with Noun Phrases Accessibility Hierarchy(NPAH) by Keenan and Comrie (1977).

Structural Recovery of the Detached Macula after Retinal Detachment Repair as Assessed by Optical Coherence Tomography

조수근,김윤전,채주병,양성재,이주영,김준근,윤영희 대한안과학회 2013 Korean Journal of Ophthalmology Vol.27 No.3

Purpose: To investigate correlations between preoperative and postoperative foveal microstructures in patients with macula-off rhegmatogenous retinal detachment (RRD). Methods: We reviewed the records of 31 eyes from 31 patients with macula-off RRD who had undergone successful re-attachment surgery. We analyzed data obtained from complete ophthalmologic examinations and optical coherence tomography (OCT) before and 9 to 12 months after surgery. All postoperative OCT measurements were taken with spectral-domain OCT, but a subset of preoperative OCT measurements were taken with time-domain OCT. Results: The mean duration of macular detachment was 15.5 ± 15.2 days, and mean preoperative best-corrected visual acuity (BCVA, logarithm of the minimum angle of resolution) was 1.03 ± 0.68. Preoperative visual acuity was correlated with retinal detachment height (p < 0.001) and the existence of intraretinal separation (IRS) along with outer layer undulation (OLU) (p = 0.022), but not with macula-off duration. The final BCVA was significantly correlated with integrity of the junction between the photoreceptor inner and outer segments (IS/OS) combined with the continuity of external limiting membrane (ELM) (p = 0.025). The presence of IRS and OLU on a detached macula were highly correlated with the final postoperative integrity of the IS/OS junction and the ELM (p = 0.017). Conclusions: Eyes preoperatively exhibiting IRS and OLU showed a higher incidence of disruption to the photoreceptor IS/OS junction and the ELM at final follow-up. Such a close correlation between preoperative and postoperative structural changes may explain why ultimate visual recovery in such eyes is poor.

구어 말뭉치 분석을 통한 한국어 내핵관계절 연구

조수근 고려대학교 언어정보연구소 2016 언어정보 Vol.0 No.23

The purpose of this study is to provide actual instances of Korean internally-headed relative clauses and to examine the characteristics of them. To achieve these goals, we analyzed the corpus data from Korean speakers consisting of 200 audio transcription files. The results of the analysis revealed that internally-headed relative clauses are actually used in Korean. The results of the analysis also revealed that only a subject and an object can be relativized in internally-headed relative clauses. In addition, The results showed that only a concrete noun can be allowed as head noun. The findings of the study suggest that there exist internally-headed relative clauses in Korean, but there are some syntactic and semantic-pragmatic restrictions on the use of them.