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ENSO and IOD Teleconnection Impact on the Interannual Variability of the West Antarctic Sea Ice
Jihae Kim,Daehyun Kang,Myong-In Lee 한국기상학회 2021 한국기상학회 학술대회 논문집 Vol.2021 No.10
The El Niño-Southern Oscillation (ENSO) and Indian Ocean dipole (IOD) are well-known climate variabilities in the tropics that have the potential to affect the Antarctic sea ice during Austral spring (September-October-November, SON). The variation in sea ice concentration (SIC) is especially pronounced in the West Antarctic, 20-30% of the total variance of which can be explained by ENSO and IOD during SON. The SIC pattern induced by ENSO and IOD is primarily linked with an anticyclonic circulation anomaly in the Amundsen-Bellingshausen Sea (ABS) that modulates atmospheric poleward temperature advection and longwave radiation forcing via poleward moisture advection. However, it is challenging to determine their separate remote impact on Antarctic sea ice due to a strong correlation coefficient between ENSO and IOD. To isolate the role of each climate mode in the tropical Rossby wave propagation pathways of the southern hemisphere, a tropical nudging experiment was performed using the Geophysical Fluid Dynamics Laboratory (GFDL) atmospheric model. The anticyclonic circulation anomaly in the ABS is primarily contributed by the ENSO-related forcing in the Pacific Ocean, while the contribution of IOD-related forcing in the Indian Ocean is three times weaker. The results of this study imply that atmospheric teleconnection through the southern Pacific Ocean is crucial to the variability of the West Antarctic sea ice.
311-nm titanium:sapphire laser therapy for alopecia areata: a pilot study of 19 patients
( Jihae Lee ),( Ro Woo Lee ),( Soo Hyung Kim ),( Hyun Jeong Ju ),( Sung Hye Eun ),( Jung Min Bae ),( Gyong Moon Kim ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.2
Background: Alopecia areata (AA) is an autoimmune skin disorder causing hair loss and has a large impact on patients’ quality of life. Laser treatment including 308-nm excimer laser has an advantage in treating AA in a targeted manner. Recently, a gain-switched 311-nm Titanium:Sapphire laser (TSL) was developed and demonstrated similar therapeutic efficacy to excimer laser in the treatment of vitiligo. Objectives: We evaluated the effectiveness and safety of the 311-nm TSL in the treatment of AA. Methods: We conducted an open trial and enrolled 19 AA patients between June 2017 and December 2018. A 311-nm TSL laser treatment was conducted once or twice a week. The dose started at 300 mJ/cm2 and increased by 50 mJ/cm2 in each subsequent session until post-treatment erythema occurred. Results: Among the 19 enrolled AA patients, three had alopecia totalis. The patients received a median of 14 sessions (range, 10-34) of TSL treatment for 3.5 months (range, 2-8). Fourteen patients (73.9%) showed excellent to complete (≥75%) hair regrowth. There were no serious adverse events to stop the treatment. Conclusion: The 311-nm TSL treatment has several advantages that it provides non-invasive, pain-free treatment to AA patients, without any risk of adverse drug reaction. In particular, TSL treatment has great benefits for children who worried about painful treatment.
Kim, Jihae,Kato, Hideki,Kakihana, Masato The Korean Infomation Display Society 2012 Journal of information display Vol.13 No.3
We have conducted two kinds of the so-called charge-compensated aliovalent element substitutions to control the photoluminescence properties of $NaAlSiO_4:Eu^{2+}$ with a special focus on the enhancement of the excitation intensity at 400 nm. The aliovalent element substitutions include cation-cation and cation-anion co-substitutions according to the general formulas $Na_{1-x}M_xAl_{1+x}Si_{1-x}O_4:Eu^{2+}$ and $Na_{1-x}M_xAlSiO_{4-x}N_x:Eu^{2+}$ (M = $Mg^{2+}$, $Ca^{2+}$, and $Sr^{2+}$), respectively. The increase in the relative excitation intensity at 400 nm has been achieved in both types of the co-substitutions. Thus, the present research has demonstrated the effectiveness of the charge-compensated element substitution.
Kim, Yi-Jun,Lee, Kyung-Ja,Park, Kyung Ran,Kim, Jiyoung,Jung, Wonguen,Lee, Rena,Kim, Seung Cheol,Moon, Hye Sung,Ju, Woong,Kim, Yun Hwan,Lee, Jihae The Korean Society for Radiation Oncology 2015 Radiation Oncology Journal Vol.33 No.2
Purpose: To analyze prognostic factors for locoregional recurrence (LRR), distant metastasis (DM), and overall survival (OS) in cervical cancer patients who underwent radical hysterectomy followed by postoperative radiotherapy (PORT) in a single institute. Materials and Methods: Clinicopathologic data of 135 patients with clinical stage IA2 to IIA2 cervical cancer treated with PORT from 2001 to 2012 were reviewed, retrospectively. Postoperative parametrial resection margin (PRM) and vaginal resection margin (VRM) were investigated separately. The median treatment dosage of external beam radiotherapy (EBRT) to the whole pelvis was 50.4 Gy in 1.8 Gy/fraction. High-dose-rate vaginal brachytherapy after EBRT was given to patients with positive or close VRMs. Concurrent platinum-based chemoradiotherapy (CCRT) was administered to 73 patients with positive resection margin, lymph node (LN) metastasis, or direct extension of parametrium. Kaplan-Meier method and log-rank test were used for analyzing LRR, DM, and OS; Cox regression was applied to analyze prognostic factors. Results: The 5-year disease-free survival was 79% and 5-year OS was 91%. In univariate analysis, positive or close PRM, LN metastasis, direct extension of parametrium, lymphovascular invasion, histology of adenocarcinoma, and chemotherapy were related with more DM and poor OS. In multivariate analysis, PRM and LN metastasis remained independent prognostic factors for OS. Conclusion: PORT after radical hysterectomy in uterine cervical cancer showed excellent OS in this study. Positive or close PRM after radical hysterectomy in uterine cervical cancer correlates with poor prognosis even with CCRT. Therefore, additional treatments to improve local control such as radiation boosting need to be considered.