Stock Market Reaction to Oil Price Shocks: A Comparison between an Oil-exporting Economy and an Oil-importing Economy

정한솔,박철범 한국계량경제학회 2011 계량경제학보 Vol.22 No.3

In this study, we assess the responses of aggregate stock returns and their volatility in the face of oil price shocks in the Norwegian and Korean markets. Both Norway and Korea are small open economies; the former exports oil, and the latter imports it. We determine herein that the responses of aggregate stock returns and volatility differ substantially, depending on the underlying cause of the oil price rise and depending on whether an economy exports or imports oil. Additionally, a larger portion of stock return variations in small open economies can be explained by the world crude oil market as opposed to the US market; this implies that the small open economies have more oil-dependent technology and limited access to the global financial market. Finally, the results of our analysis of the conditional covariance measure indicate that the responses of stock returns and volatility are not based on a risk-return tradeoff relationship.

통합학급 운영을 위한 유아특수교사와 보육교사의 협력 경험에 관한 질적 연구

정한솔,이병인,조현근 한국통합교육학회 2022 통합교육연구 Vol.17 No.1

The purpose of this study is to investigate the cooperative experiences between early childhood special education teachers and child care center teachers in the implementation of inclusive classroom. To this end, in-depth interviews were conducted with a total of 6 participants consisting of 3 early childhood special education teachers and 3 child care center teachers working at an inclusive daycare center for young children with disabilities. The collected interview data were analyzed according to the steps of the continuous comparison method, and 3 upper categories, 10 lower categories, and 31 main contents were derived. The research results are as follows. First, cooperation between teachers has the advantage of enabling objective and reliable early childhood observation and exchange of expertise and information between teachers, thereby providing appropriate educational support according to the level of development of individual infants. Second, the degree of cooperation between teachers may vary depending on the degree of understanding of special education by institutional managers. Third, for successful cooperation between teachers, it was necessary to form an intimate public relationship based on communication. Fourth, for successful cooperation between teachers, administrative support such as division of work and adjustment of teacher-child ratio was required. Fifth, for successful cooperation between teachers, smooth sharing of Individualized Education Plan(IEP) was necessary. Sixth, early childhood special education teachers and child care center teachers shared responsibilities as classroom teachers in the process of cooperating with each other and recognized that ‘we were one’. The results of this study are meaningful in that they presented basic data to establish a direction or guidelines for successful cooperation between early childhood special education teachers and child care center teachers for the implementation of inclusive classrooms in the future. 본 연구의 목적은 통합학급 운영에 나타난 유아특수교사와 보육교사의 협력 경험을 알아보는 것이다. 이를 위하여 장애아통합어린이집에 근무하는 유아특수교사 3인과 보육교사 3인으로 구성된 총 6인의 연구 참여자를 대상으로 심층 면담을 수행하였다. 수집된 면담 자료는 연속적 비교법의 단계를 따라 분석하여 3개의 상위 범주, 10개의 하위 범주, 31개의 주요 내용이 도출되었다. 연구 결과는 다음과 같다. 첫째, 교사 간 협력은 객관적이고 신뢰로운 유아 관찰과 교사 간 전문지식 및 정보교환이 가능하도록 하여 개별 유아의 발달수준에 따른 적합한 교육지원을 할 수 있다는 장점이 있다. 둘째, 교사 간 협력 정도는 기관 관리자의 특수교육 이해 정도에 따라 달라질 수 있다. 셋째, 통합학급 내 교사 간 성공적인 협력을 위해서는 소통에 기초한 친밀한 공적 관계 형성이 필요하였다. 넷째, 통합학급 내 교사 간 성공적인 협력을 위해서는 업무 분담과 교사-아동 비율 조정 등 행정적 지원이 필요하였다. 다섯째, 통합학급 내 교사 간 성공적인 협력을 위해서는 개별화교육계획(IEP)에 대한 원활한 공유가 필요하였다. 여섯째, 통합학급 내 유아특수교사와 보육교사는 서로 협력하는 과정에서 학급 교사로서 책임감을 공유하며 ‘우리는 하나’라고 인식하였다. 본 연구 결과는 향후 장애아 통합어린이집에서 통합학급 운영을 위한 유아특수교사와 보육교사의 성공적인 협력 방안을 마련하기 위한 기초자료를 제시하였다는 데 의의가 있다.

전북지역 소 설사유래 병원성대장균 감염실태 조사

정한솔,백귀정,고원석,이정원,정재교 한국동물위생학회 2020 韓國家畜衛生學會誌 Vol.43 No.2

Enterovirulent Escherichia coli are among the most important causes of diarrhea in cattles. Between January and December, 2017, a total of 150 stool specimens from cattles were investigated for entero-haemorrhagic E. coli (EHEC), enteropathogenic E. coli (EPEC), enteroaggregative E. coli (EAEC), en-terotoxigenic E. coli (ETEC) and enteroinvasive E. coli (EIEC) using real-time PCR. 131 E. coli were isolated from feces. The most frequently isolated pathotype in feces was EHEC (37 isolates). EPEC, ETEC and EAEC were detected in feces with 14, 7 and 3 respectively. EIEC was not detected. Antimicrobial resistance test was performed by agar disc diffusion method with 14 antimicrobials. Enterovirulent E. coli isolates showed the highest antimicrobial resistance to ampicillin 61.3%, followed by tetracycline 54.5% and streptomycin 45.5%. They had low resistance to amikacin 11.4%. Of 44 isolates, 37 (84.1%) were resistant to more than 2 antimicrobials. futher study a highest antimicrobial susceptibility to trime-thoprim/sulfamethoxazole 50.0% and florofenicol 47.7%.

Prolonged oral sildenafil use-induced Mondor disease: a case report

정한솔,문유호 영남대학교 의과대학 2022 Yeungnam University Journal of Medicine Vol.39 No.3

Penile Mondor disease (MD) is a palpable, painful, subcutaneous induration caused by superficial dorsal penile vein thrombosis. We report a case of penile MD that was suspected to be related to prolonged oral sildenafil use. A 46-year-old man visited our emergency department with sustained penile pain and swelling that began 7 hours after sexual intercourse. He had used oral sildenafil intermittently for 11 years and engaged in sexual intercourse the previous night after taking sildenafil. Examination revealed no evidence of intercourse-related trauma to the genital area or an increase in penile skin temperature. However, penile swelling and tenderness over the protruding dorsal penile vein were noted. A color Doppler ultrasound examination was performed immediately, which showed hyperechoic thrombosis in the right superficial dorsal penile vein that was dilated, with soft tissue swelling and no detectable flow signal in the thrombotic lesion. The patient was diagnosed as having penile MD. The patient was treated conservatively. Some reports have indicated the involvement of sildenafil in thrombogenesis. Physicians should be aware that prolonged oral sildenafil use may be associated with penile MD.

Single-Incision, Two-Port Laparoscopic Appendectomy as an Alternative to Transumbilical Single-Port Laparoscopic Appendectomy

정한솔,정성민,이미리,신용찬,전흥만,김재일,최평화 대한내시경복강경외과학회 2019 Journal of Minimally Invasive Surgery Vol.22 No.1

Purpose: We designed a modified technique to perform an advanced procedure using conventional instruments and did not employ specialized single-incision laparoscopic surgery (SILS) port equipment. We compared postoperative results for transumbilical, single-port laparoscopic appendectomy (TUSPLA) and single-incision, 2-port laparoscopic appendectomy (SITPLA). Methods: This retrospective study enrolled 77 patients who underwent TUSPLA or SITPLA to provide more minimally invasive surgery between May 2017 and April 2018. TUSPLA was performed in 39 patients and 38 underwent SITPLA. In the SITPLA group, two 5-mm trocars were inserted through the umbilicus and an extra puncture site was used for a left-handed instrument. Demographic characteristics, operative data, and postoperative outcomes were collected and compared between the groups. Results: The mean total operative time in the SITPLA group was shorter than in the TUSPLA group (p=0.003). The mean laparoscopic instrumental time was also shorter (p<0.001) in the SITPLA. The number of postoperative analgesics in the SITPLA group was less than in the TUSPLA group (p=0.002). The length of hospital day after surgery was shorter in the SITPLA group than in the TUSPLA group (p=0.008). There were no other significant differences between the groups. Conclusion: SITPLA had a shorter operative time, required less pain management, and had a similar cosmetic outcome when compared with TUSPLA.

수서생물에 대한 Carbamazepine의 위해성 평가

정한솔,안창효,이계문,김성준,이용운 한국도시환경학회 2019 한국도시환경학회지 Vol.19 No.2

Carbamazepine has the properties of antibiotics, antiepileptics and anticonvulsants as medicines used for various targets and it is semi-permanence about environment. Medicinal substances used by human and livestock is flowing into the sewage treatment plant through urine. Furthermore, some remaining medicinal substances may be mixed with general waste or food waste or that can be discharged domestic sewage. Thus, Carbamazepine has variable inflow route to aquatic environment. Leachate from the landfill and waste water of the food waste disposal treatment are sent to sewage treatment plant for linkage processing. Effluent from the sewage treatment plant contains untreated material and which flow into the aquifer. Therefore, an assessment of the effect of carbamazepine on aquatic organisms is necessary. In this study, “Pseudokirchneriella subcapita”, “Daphnia magna” and “Danio rerio embryos” was used to evaluate the risk of carbamazepine in aquatic organisms. Environmental effect tests are conducted according to OECD test standards. The results are as follows: we could find the EC50 of Carbamazepine is 44.63 mg/L, 57.56 mg/L, 1.53 mg/L. By these stats, we figure out PNEC of Carbamazepine as 0.0153 mg/L. The result of this study shows that the HQ is 0.32 based on Carbamazepine investigation of the four major river tributaries in 2015, which means that the Carbamazepine has low hazard possibility to water system in Korea. However, the EC50 values i n this study are the results derived through acute toxicity studies. The EC50 value of the chronic toxicity test is often lower than the EC50 value of the acute toxicity test. It is considered that there is a high possibility that the HQ becomes close to 1 when studying the potential contaminants in the water system for a long period of low concentration. Therefore, this requires ongoing research and monitoring. Carbamazepine은 다양한 용도로 사용되는 의약품으로서 항생제, 항경련제, 항간질제의 성질을 가지고 있으며 환경 반잔류성을 갖고 있다. 사람과 가축에 사용된 의약물질이 소변을 통해 하수처리장으로 유입되며, 일부의 남은 폐의약물질은 일반폐기물이나 음식물 폐기물에 섞여 버려지거나 가정하수로 배출된다. 쓰레기 매립장의 침출수, 음식물류 처리장의 음폐수가 연계 처리를 위해 하수처리장으로 보내지는데, 하수처리장 방류수에는 미처리된 물질이 포함되어 수계로 유입된다. 이처럼 의약물질이 환경으로 유입되는 경로는 매우 다양하므로 수서생물에 대한 Carbamazepine의 영향 평가는 필요하다. 본 연구에서는 수계로 유입된 Carbamazepine이 수서생물에 미치는 위해성을 평가하기 위하여 조류(Pseudokirchneriella subcapitata), 물벼룩(Daphnia magna), 어류 배아(Danio rerio embryos)를 대상으로 OECD 시험 기준에 따라 생태영향 시험을 수행하였으며그 결과는 다음과 같다. P. subcapitata, D. magna, D. rerio embryos에 대한 EC50은 각각 44.63 mg/L, 57.56 mg/L, 1.53 mg/ L이며 이에 기초한 PNEC는 0.0153 mg/L로 나타났다. 본 연구 결과를 토대로 2015년 4대강 지천 중심의 조사 결과 중 최대검출량인 4.908 μg/L을 이용하여 HQ를 도출한 결과는 0.32로서 국내 수계에서 수서생물에 대한 Carbamazepine의 위해 가능성은 낮은 것으로 나타났다.

외국인 관광객 대상 면세제도 개선

정한솔,최정희,윤석현,이준범,김민비 한국호텔외식관광경영학회 2014 한국호텔외식경영학회 학술발표논문집 Vol.2014 No.12

Unexpected Isolation of Leclercia Adecarboxylata in Dermatitis of a Dog

정한솔,조현기,이준봉,윤장원,정진영 한국임상수의학회 2017 한국임상수의학회지 Vol.34 No.5

A two-year-old intact male Labrador retriever was presented with generalized erythema, pustule and pruritus. A skin screening test revealed that there were no fleas but bacteria and dermatophytes were present. Blood testing revealed no remarkable findings. The patient was prescribed systemic medication of enrofloxacin 30 mg/kg once a day and itraconazole 10 mg/kg once a day and topical medication of 2% chlorhexidine shampoo twice a week for 2 weeks. Two weeks after the prescription, aerobic culture confirmed that the bacteria were Leclercia Adecarboxylata and Pseudomonas putida was sensitive to enrofloxacin. Therefore, more medicine was prescribed for 4 weeks to alleviate clinical signs. After six weeks of medication, clinical signs were alleviated and skin screening test revealed no remarkable findings. Bacterial and fungal skin infections are common in dogs. However, there are no reports of Leclercia Adecarboxylata infection even in gastrointestinal tract in veterinary medicine. This is the first report of Leclercia Adecarboxylata infection in dogs. This report proved that Leclercia Adecarboxylata can cause skin problem in dogs.

A case of pancreatic cancer diagnosed by serial pancreatic juice aspiration cytological examination

정한솔,이요한,박창환,조은애 대한내과학회 2023 대한내과학회 추계학술대회 Vol.2023 No.2

[반려동물 이야기(2)] 우리는 틀림없이 운명이야

정한솔 로얄에이알씨 주식회사 2016 로얄동물임상의학 Vol.14 No.1