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최현수,고용권,김천수,배대석,윤성택 대한자원환경지질학회 2000 자원환경지질 Vol.33 No.6
Environmental isotope $^{18}O$, $^{2}H$, $^{3}H$,$^{13}C$, $^{34}S$and $^{87}Sr/^{86}Sr$) studies on ${CO_2}$-rich waters in the Kangwon Province were carried out to elucidate the origin, residence time, water-rock interaction and mixing process of their. ${\delta}^{18}O$ and ${\delta}D$ data indicate that ${CO_2}$-rich waters were derived from the local meteoric water. It also shows that each type of ${CO_2}$-rich water has distinct isotopic composition and Na-${HCO_3}$ type water (-10.8 to -12.1${\textperthousand}$, ${\delta}^{18}O$ ) is lighter than other type waters. These depleted isotopic values supposedly indicate that, considering the altitude effect of isotope in Korea, the recharge area of Na-${HCO_3}$ type water can be estimated to be relatively higher in elevation than those of Ca-${HCO_3}$ and Ca-Na-${HCO_3}$ type waters. Tritium contents close to zero are observed in the Na-${HCO_3}$ type water, confirming a long residence time and the possibility of a ${CO_2}$ inflow into the aquifer at great depth. These isotope data also show that the Ca-${HCO_3}$ type water has undergone mixing process with surface water during ascending at depth, whereas Na-${HCO_3}$ type water was less mixed with surface waters. The carbon isotope data (-8.8 to +0.8 ${\textperthousand}$ ${\delta}^{13}C$) indicate that dissolved carbon in the ${CO_2}$-rich waters was possibly derived from deep seated ${CO_2}$ gas. The high ${\delta}^{34}S$ values (up to 38.1${\textperthousand}$) of dissolved sulfates suggest that sulfate reduction by microbial activity had occurred at depth. Strontium isotopic data ($^{87}Sr/^{86}Sr$) of ${CO_2}$-rich waters indicate that the chemistry of the ${CO_2}$-rich waters is determined by water-rock (granite) interaction.
차세대 사회보장정보시스템 기반의 ‘찾아 주는 복지서비스’ 지원을 통한 포용과 혁신의 복지 패러다임으로의 전환
최현수 한국보건사회연구원 2019 보건복지포럼 Vol.274 No.-
이 글에서는 4차 산업혁명에 대응하기 위한 데이터 기반 포용과 혁신의 사회안전망 강화를 목표로 2019년부터 2022년까지 추진할 예정인 차세대 사회보장정보시스템을 활용한 복지 패러다임 전환에 대해 살펴본다. 이는 2010년 구축된 이후 현재까지 우리나라 사회정책 운영에서 핵심적인 정보 전달체계로 활용되고 는 ‘행복e음’을 차세대 사회보장정보시스템으로 전면 개편하고, 4차 산업혁명 시대의 지능정보기술을 활용하여 기존의 신청주의 복지 패러다임에서 ‘찾아 주는 복지서비스 지원 패러다임’으로 전환함으로써 문재인 정부가 지향하는 ‘혁신적 포용국가’의 비전과 전략에 따른 다양한 사회정책을 국민들이 체감할 수 있도록 현하기 위한 실천 방안으로서 의미를 지닌다.
최현수,김성훈,박영주,박혜림,서예영,최우희 대한핵의학회 2014 핵의학 분자영상 Vol.48 No.1
Purpose The purpose of this study was to identify the frequencyand possible cause of diffuse intrathoracic uptake onpost-therapy I-131 scans in thyroid cancer patients. Methods We retrospectively reviewed 781 post-therapyscans of 755 thyroid cancer patients who underwent totalthyroidectomy and radioactive iodine therapy betweenJanuary and December 2010. Diffuse intrathoracic uptakeon post-therapy scans was examined, and clinical patientcharacteristics including sex, age, regimen for thyroidstimulatinghormone (TSH) stimulation (thyroid hormonewithdrawal or recombinant human TSH injection), TSH,thyroglobulin (Tg) and anti-thyroglobulin antibody (anti-TgAb) levels, therapeutic dose of radioactive iodine therapyand prior history of radioactive iodine therapy wererecorded.Scan findings were correlated with chest CT,chest radiographs, laboratory tests and/or clinical status. Diffuse intrathoracic uptake without evidence of pathologiccondition was categorized as indeterminate. The associationbetween clinical characteristics and intrathoracic uptakewere analyzed for negative intrathoracic uptake andindeterminate uptake groups. Results Diffuse intrathoracic uptake on post-therapy scanswas demonstrated in 39 out of 755 (5.2 %) patients, amongwhich 3 were confirmed as lung metastasis. The 14 patientsthat showed high Tg or anti-Tg Ab levels were considered tobe at risk of having undetected micrometastasis on otherimaging modalities. The remaining 22 were indeterminate(2.9 %).Upon comparison of negative intrathoracic uptakeand indeterminate uptake groups, TSH stimulation by thyroidhormone withdrawal was shown to be significantly correlatedwith diffuse intrathoracic uptake (p <0.05). Conclusion The frequency of diffuse intrathoracic uptake onpost-therapy scans was 5.2 % and could be seen in thyroidcancer patients with underlying lung metastasis as well asthose without definite pathologic condition. In the latter, therewas a higher frequency for diffusely increased intrathoracicuptake in those who underwent thyroid hormone withdrawalrather than recombinant human TSH injection.