출산장려금이 기혼여성의 출산의향에 미치는 영향

송현재,김지영 韓國財政政策學會 2013 財政政策論集 Vol.15 No.1

출산장려금은 지방자치단체가 시행하고 있는 출산장려정책의 일환으로, 지방자치단체가 지급기준이나 지급액수와 같은 요소들은 자율적으로 결정하며 자체재원으로 예산을 조달한다. 본 연구에서는 출산장려금의 지역적 차이를 이용하여 출산장려금이 기혼여성의 출산의향을 증가시키는 효과가 있었는지 실증적으로 분석하였다. 이를 위하여 2008년 10월 기준 지방자치단체별 출산장려금 자료와 여성가족패널 2차 자료를 이용하였다. 출산계획은 자녀의 수에 따라 변동하는 경향이 있고 자녀의 수가 다른 가구는 서로 이질적인 행동양식을 보일 수 있으므로, 자녀가 한 명인 가구와 두 명인 가구로 구분하여 출산장려금의 효과를 추정하였다. 그 결과 자녀의 수가 한 명인 가구의 출산계획은 출산장려금이 지급될수록 증가하는 것으로 나타난 반면, 자녀의 수가 두 명인 가구의 출산계획은 출산장려금의 영향을 받지 않았다. 이러한 분석결과로 볼 때, 출산장려금의 정책효과를 제고하기 위해서는 둘째 자녀에 대한 지원을 강화하는 방안을 고려할 필요가 있다. We analyze the effect of child birth grant on married women's fertility intention in this paper. Child birth grant is a subsidy for the parents who give birth, which is implemented autonomously by local governments in Korea. For an empirical analysis, we estimate a probit regression model using the data on child birth grant across local governments in 2008 and second wave of Korean Longitudinal Survey of Women and Families. We found some positive effect of child birth grant on married women's fertility intention. The results show that the grant increased the fertility intention of the mother with only child significantly.

주시안을 가진 간헐외사시의 편위안 증량 비대칭 외직근후전술

송현재,백혜정,Hyun Jai Song,MD,Hye Jung Paik,MD,PhD 대한안과학회 2010 대한안과학회지 Vol.51 No.7

Purpose: To document and compare the clinical results of symmetrical rectus muscle recession and asymmetrical rectus muscle recession in intermittent exotropia. Methods: The medical records of 27 patients who had symmetric bilateral rectus recession and 24 patients who had asymmetric bilateral rectus recession for intermittent exotropia with at least six months of postoperative follow-up from March 2004 to March 2007 were reviewed retrospectively. The authors performed a recession of 2 mm or greater in the deviating eye than in the fixing eye. Results: The mean age was 7.14±4.23 (range 3 to 15) years for symmetric bilateral rectus recession and 7.33±4.01 (range 3 to 14) years for asymmetric bilateral rectus recession. The mean follow-up was 11.83±5.74 (range 6 to 26) months in the symmetric bilateral rectus recession group and 11.14±5.05 (range 6 to 30) months in the asymmetric bilateral rectus recession group. The mean preoperative angle deviations were 27.5±4.8 prism diopter (PD) (range 30 to 40PD) and 27.3±4.6PD (range 20 to 40PD) in each group. The outcome of final follow-up (postoperative 24 months) was favorable in both groups, and slightly more successful in the asymmetric bilateral recession group but not a statistically significant amount (75.5% in the symmetric bilateral recession group and 81.2% in the asymmetric bilateral recession group). Conclusions: The present study suggests that there are no significant differences at postoperative 24 months between symmetric bilateral recession and asymmetric bilateral recession in intermittent exotropia having a fixing and a deviating eye.

안와봉와직염의 호전 중 발생한 전두엽의 농양 1예

송현재,지미정,Hyun Jai Song,MD,Mi Jung Chi,MD 대한안과학회 2010 대한안과학회지 Vol.51 No.1

Purpose: To present a case of brain abscess formation accompanied by improvement of orbital cellulitis. Case summary: A 54-year-old male came to our clinic complaining of swelling and pain of the left periorbital area and decreased visual acuity (VA) of the left eye. Initial best-corrected visual acuity (BCVA) was 0.3 and intraocular pressure was 27 mmHg in the left eye. Eye movement in all directions was restricted and 4 mm of proptosis was observed in the left eye. An orbital CT scan demonstrated pansinusitis and orbital cellulitis of the left eye. The patient underwent endoscopic sinus surgery and was treated with systemic antibiotics. However, periorbital swelling was aggravated and another orbital CT scan was performed and analyzed. The CT scan showed localized periorbital abscess of the left eye, and the authors performed an incision and drainage (I&D) of abscess procedure. After the operation, BCVA of the left eye was recovered to 0.8 and eye movement improved and periorbital swelling decreased. However, 15 days after the I&D, the patient complained of a severe headache. Brain magnetic resonance imaging (MRI) was performed and showed an abscess of the left frontal lobe of the brain. The authors consulted with a neurosurgeon, and the patient received intravenous antibiotics and mannitol. The headache steadily decreased, and three months after the first visit, a follow-up brain MRI was performed. The MRI showed almost complete disappearance of the abscess and six months after the first visit, BCVA was recovered to 1.0 and eye movement was full in all directions. Conclusions: Although orbital cellulitis is improved by treatment of antibiotics and surgery, if the patient complains of neurologic symptoms such as headache, other complications such as brain abscess formation should be considered. J Korean Ophthalmol Soc 2010;51(1):131-135

증식당뇨망막병증 환자에서 유리체내 베바시주맙 주입술 후 발생한 견인망막박리

송현재,손희진,이대영,남동흔 대한안과학회 2009 대한안과학회지 Vol.50 No.11

Purpose: To report two cases of tractional retinal detachment after intravitreal bevacizumab injection. Case summary: (Case 1) A 48-year-old female with insulin-dependent diabetes mellitus and a high HbA1c level came to our clinic for fundus evaluation. The best corrected visual acuity (BCVA) was 1.0 in the right eye and funduscopic examination of the right eye revealed proliferative diabetic retinopathy with preretinal hemorrhage and a mild fibrovascular proliferative membrane around the optic disc. Intravitreal bevacizumab injection (1.25 mg) was performed before starting panretinal photocoagulation (PRP) to prevent macular edema after PRP. Three days after the injection, visual acuity decreased to 0.3 and funduscopic findings showed tractional retinal detachment. Vitrectomy was performed and visual acuity recovered to 1.0 four months after operation. (Case 2) A 42-year-old male with insulin-dependent diabetes mellitus and a high HbA1c level came to our clinic for fundus evaluation. BCVA was 0.5 in the right eye and funduscopic examination of the right eye revealed proliferative diabetic retinopathy with vitreous hemorrhage and a mild fibrovascular proliferative membrane around the optic disc. Intravitreal bevacizumab injection (1.25 mg) was performed before starting panretinal photocoagulation (PRP) to prevent macular edema after PRP. One month after the injection, visual acuity decreased to 0.1 and funduscopic findings showed tractional retinal detachment. Vitrectomy, intravitreal silicone oil injection, and sequential silicone oil removal were performed and visual acuity recovered to 0.6 at the final examination. Conclusions: Intravitreal bevacizumab injection may cause tractional retinal detachment in poorly controlled insulin-dependent diabetes mellitus patients with fibrovascular proliferative membranes. 목적: 증식당뇨망막병증 환자에서 유리체내 베바시주맙 주입술 시행 후 발생한 견인망막박리 2예를 보고하고자 한다. 증례요약: (증례 1) 인슐린의존당뇨인 48세 여자로 HbA1c는 14.8%였다. 우안 최대교정시력은 1.0이었고 증식당뇨망막병증, 망막앞출혈로 유리체내 베바시주맙 주입술을 시행했다. 1주일 후 우안 최대교정시력 0.3으로 저하되고 견인망막박리 소견을 보여 유리체절제술을 시행 했으며, 술 후 4개월째 최대교정시력은 1.0으로 회복되었다. (증례 2) 인슐린의존당뇨인 42세 남자로 HbA1c는 11.2%였다. 우안 최대교정 시력은 0.5였고 증식당뇨망막병증, 유리체출혈로 유리체내 베바시주맙 주입술을 시행했다. 한달 후 우안 최대교정시력은 0.1로 저하되고 견인망막박리 소견을 보여 유리체절제술 및 실리콘기름 주입술을 시행했으며, 유리체절제술 5개월 후 실리콘기름 제거술을 시행했고 술 후 3개월째 최대교정시력은 0.6으로 회복되었다. 결론: 당뇨가 잘 조절되지 않는 인슐린의존당뇨 환자에서 시신경유두 주위에 경미한 섬유혈관증식막이 동반된 경우라도 유리체내에 베바 시주맙을 주입하면 급격한 신생혈관의 퇴축과 섬유화의 증가로 견인망막박리가 발생할 수 있음을 염두에 두어야겠다.

혼합형 고체 추진제의 수명평가 시험에 관한 고찰

송현재(Hyeonjae Song),홍성파(Sungpa Hong),박종완(Jongwan Park) 한국추진공학회 2012 한국추진공학회 학술대회논문집 Vol.2012 No.11

혼합형 고체 추진제(이하 추진제)는 점탄성 특성이 있어 시간이 경과됨에 따라 노화가 진행된다. 추진제 노화로 인해 추진제의 균열 및 접착면 분리가 발생할 수 있다. 이러한 이유로 추진제 수명평가가 필요하며 응력 완화 시험, 인장시험, 내구성 시험, 접착력 시험, 가속 노화 시험이 요구된다. 본 논문에서는 각 시험의 특성에 대하여 기술하였으며 실제 시험한 데이터를 바탕으로 그 결과를 분석하였다. As composite solid propellant have the viscoelasticity characteristics, propellant aging has proceed over time. Propellant aging can cause crack and separation of propellant. so it is required to evaluate the propellant"s service life and conducted many kinds of tests, such as stress relaxation test, uniaxial tensile test, endurance test, uniaxial cubic test and acceleration aging test. In this paper, characteristics of each test were explained, and the results of tests were analyzed on the basis of actual data.

비정합 외란이 존재하는 시스템의 외란 관측기 기반 슬라이딩 모드 제어기 설계

송현재(Hyun Jae Song),한민수(Min Soo Han),김인혁(In Hyuk Kim),손영익(Young Ik Son) 대한전기학회 2015 정보 및 제어 심포지엄 논문집 Vol.2015 No.10

2007년 한국 백내장굴절수술학회 회원 설문조사 - 한국에서의 백내장 수술의 최근 경향 -

백혜정,송현재,신경환 대한안과학회 2009 대한안과학회지 Vol.50 No.11

목적: 국내 백내장 수술의 현 추세를 이해하고 미국 및 유럽의 선진국 보고와 비교하여 차후 백내장 수술의 경향을 예측하고자 하였다. 대상과 방법: 한국 백내장굴절수술학회 회원 301명을 대상으로 총 85문항의 제 13차 설문조사를 2008년 2월 실시하여 20.6%의 응답률 을 얻었고, 1995년도 이후의 기존 설문조사 및 2005년 미국과 유럽의 설문조사와 비교하였다. 결과: 응답자의 연령은 40대가 54%로 가장 많았고, 백내장 수술의 입원기간은 점점 감소하여 당일 퇴원이 보편화되었다. 마취 방법은 점안마취가 57%로 가장 많은 비율을 차지하였고, 절개창의 무봉합법은 60%에서 시행되었다. 백내장 수술 시 사용하는 인공수정체의 광학부 재질은 아크릴(acrylic)이 88%로 가장 많았다. 유수정체용 인공수정체 삽입술은 56%의 회원이 시행 중이며, 특수 인공수정체에 대한 관심은 예년과 비교하여 지속적인 증가를 알 수 있었다. 결론: 이번 조사로 국내 백내장 수술의 최근 경향과 수술방법 등의 경향이 미국 및 유럽 선진국의 수준에 가깝게 이르렀음을 알 수 있었다. Purpose: This study investigated the current situation and future trends in the field of cataract surgery in Korea. Methods: Since 1995, the members of the Korean Society of Cataract and Refractive Surgery (KSCRS) have conducted annual surveys regarding cataract and refractive surgery. The 2007 annual survey, consisting of 85 multiple-choice questions, was mailed in February 2008 to 301 KSCRS members. Sixty-two (20.6%) members answered the questions. Current data were compared with data from previous annual surveys and with surveys in the United States and Europe. Results: Fifty-four percent of the respondents were over 50 years of age. The duration of hospital stay has decreased annually and the use of topical anesthesia (57%) has slightly increased. Self-sealing wound construction was the main wound closure technique in phacoemulsification (60%). The implantation of phakic intraocular lenses (IOL) was performed in 56% of the respondents and the most preferred IOL for small incision cataract surgery were acrylic (88%). Interest in the additional value of IOL has increased annually. Conclusions: This survey summarized current trends and changes in cataract surgery in Korea.

Size control of silica nanoparticles and their effect in polyethersulfone ultrafiltration membranes

조용준,김창근,송현재 한국공업화학회 2014 한국공업화학회 연구논문 초록집 Vol.2014 No.0

램프 기준 입력을 이용한 DC 모터 위치 제어 성능 개선

이상명(Sang-Myung Lee),송현재(Hyun-Jae Song),최대식(Dae-Sik Choi),손영익(Young-Ik Son) 대한전기학회 2012 정보 및 제어 심포지엄 논문집 Vol.2012 No.4

Understanding cavitation-related mechanism of therapeutic ultrasound in the field of urology: Part I of therapeutic ultrasound in urology

조성용,권오빈,김성찬,송현재,김강해,최민주 대한비뇨의학회 2022 Investigative and Clinical Urology Vol.63 No.4

Shock waves are commonly used in the field of urology. They have two phases, positive and negative, and the bubble generation is roughly classified into acoustic cavitation (AC) and laser-induced cavitation (LIC). We evaluated the occurrence of cavitation, its duration, the area of interest, and the maximal diameter of the cavitation bubbles. Changes in AC occurred at 0.2 ms with the highest number of bubbles and disappeared at 0.6 ms. The bubble size was 2 mm in diameter. Changes in LIC bubbles were observed in three pulse modes. The short pulse showed an initial bubble starting at 0.005 ms, which reached its largest size at 0.4 to 0.6 ms. The long pulse showed an initial bubble starting at 0.005 ms, which reached its largest size at 0.4 ms with the formation of an additional lagena-shaped bubble at 0.6 ms. The distance mode of MOSES showed two signal peaks with the formation of two consecutive bubbles at 0.2 and 0.6 ms. The main difference in the laser beams between the long-pulse and the MOSES modes was the continuity and the peak power of the laser beam. The diameters parallel to the laser direction were 6.8, 8.6, and 9.7 mm at 1, 2, and 3 J, respectively, in the short pulse. While the cavitation bubbles rupture, ejectile force occurs in numerous directions, transmitting high enough energy to break the targets. Cavitation bubbles should be regarded as energy and the mediators of energy for stone fragmentation and tissue destruction.