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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Junction temperature control for the automotive LED lamp based on the current feed forward strategy | Advantages of LEDs include high brightness, reliability, low power consumption and a long life. These advantages have made LEDs feasible in a wide range of automotive lamps applications. However, LEDs are semiconductor p-n junction devices and their electrical and optical properties are temperature dependent. Especially for automotive lamp applications, the increased temperature influences the luminous flux droops and thus the color of the light changes related to wavelength shifting. In this study, it is intended to conduct an experiment to control the junction temperature of automotive LED lamps. To control the junction temperature of LED, the current feed forward strategy was proposed. Furthermore, the change in luminous flux according to junction temperature control was investigated. For the experiment, LED chip (CH3535EUY3501L-AM, from Everlight co.) was used. The thermocouple (Fluke-116) measures the temperature at the solder point to obtain the junction temperature using the heat transfer equation. For measuring the optical properties, it was performed using the T3Ster TeraLED system. The experimental results show, the temperature control based on the current feed forward method is stable with the performance in the overall control inputs/outputs. | Jeong, Seok-Ho; Kim, Jung-Young; Xiao, Xiao; Kim, Young-Suk | Kyungpook Natl Univ, Grad Sch, Daegu 41566, South Korea; Hyundai Mobis Ltd, Adv Lamp Prod Engn Cell, Gyeonggi Do 16891, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | Kim, Sang-Hoon/AAA-2248-2020 | 57222124223; 57222130756; 57195394085; 36065820800 | caekim@knu.ac.kr; | OPTIK | OPTIK | 0030-4026 | 1618-1336 | 232 | SCIE | OPTICS | 2021 | 2.84 | 41.1 | 0.16 | 2025-07-30 | 0 | 2 | Automotive LED lamp; Junction temperature; Current feedforward control; Luminous flux change | Automotive LED lamp; Current feedforward control; Junction temperature; Luminous flux change | Heat transfer; Light emitting diodes; Optical properties; Temperature control; Thermal management (electronics); Thermocouples; Electrical and optical properties; Feed-forward methods; Heat transfer equations; Increased temperature; Junction temperatures; Low-power consumption; Temperature dependent; Wavelength shifting; Semiconductor junctions | English | 2021 | 2021-04 | 10.1016/j.ijleo.2021.166535 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Luminescence features of Mn²⁺-doped Zn2SiO4: A green color emitting phosphor for solid-state lighting | A series of green-emitting Zn2-xSiO4:xMn (0.005 (6)A(1) transition. As Mn2+ ion concentration increases, PL intensity enhances up to 0.045 mol of Mn2+ ions in Zn2SiO4 phosphor and then decreases beyond this concentration. The CIE chromaticity coordinates recorded for the optimized phosphor appear in green region of the CIE diagram. The electron paramagnetic resonance spectra recorded for phosphor show sextet hyperfine structure around g approximate to 2.0. Mn2+ ions are tetrahedrally coordinated in the structure. The PL results indicated that the prepared phosphor could be a suitable candidate as a green light emitting phosphor for display devices. | Singh, Vijay; Prasad, Aman; Deopa, Nisha; Rao, A. S.; Jung, SoonWon; Singh, N.; Rao, J. L.; Lakshminarayana, G. | Konkuk Univ, Dept Chem Engn, Seoul 05029, South Korea; Delhi Technol Univ, Dept Appl Phys, Bawana Rd, New Delhi 110042, India; Chaudhary Ranbir Singh Univ, Dept Phys, Jind 126102, Haryana, India; SV Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India; Kyungpook Natl Univ, Intelligent Construct Automat Ctr, 80 Daehak Ro, Daegu 41566, South Korea | ; Jeeru, Lakshmana/AAB-3747-2020; Prasad, Aman/LBI-7340-2024; Rao, Allam/AAS-9078-2020 | 57205227140; 57197880650; 57194333172; 24313169500; 57219467709; 57202910594; 7402367396; 57194637883 | vijayiin2006@yahoo.com;vijayjiin2006@yahoo.com; | OPTIK | OPTIK | 0030-4026 | 1618-1336 | 225 | SCIE | OPTICS | 2021 | 2.84 | 41.1 | 1.25 | 2025-07-30 | 18 | 19 | Sol-gel; Mn2+ ion; Zn2SiO4; Photoluminescence; EPR | PHOTOLUMINESCENCE PROPERTIES; EPR; ABSORPTION; GLASSES | EPR; Mn<sup>2+</sup>ion; Photoluminescence; Sol-gel; Zn<sub>2</sub>SiO<sub>4</sub> | Display devices; Green manufacturing; Ions; Lighting; Manganese compounds; Paramagnetic resonance; Phosphors; Silicon; Silicon compounds; Sol-gels; Zinc compounds; Diffuse reflectance spectrum; Electron paramagnetic resonance spectrum; Hyperfine structure; Ion concentrations; Photoluminescence spectrum; Rhombohedral lattice; Solid state lighting; Willemite structure; Light emission | English | 2021 | 2021-01 | 10.1016/j.ijleo.2020.165715 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Optical properties of the Czochralski grown Cs2MoO4 crystal | Single crystal growth of novel dicesium molybdate (Cs2MoO4) crystal by Czochralski technique was carried out. The single crystal phase was confirmed by powders X-ray diffraction analysis. The optical band gap of 4.22 eV was estimated from the absorbance spectra, measured at room temperature. The luminescence properties were measured under the excitation of 4.42 eV UV light from an LED source in the temperature range of 10-300 K. The photoluminescence light yield increases upon cooling down the grown crystal to 10 K. The luminescence decay time was analyzed with the sum of three exponential decay-time functions in the entire temperature range. The comparison of luminescence light yield with Li2MoO4 (one of the promising scintillating bolometers for the neutrinoless double-beta decay search) at 10 K shows a similar light output. These preliminary investigations show that the grown crystal can be a good candidate crystal for the cryogenic dark matter and neutrinoless double-beta decay search. | Khan, Arshad; Khan, Sajid; Kim, H. J.; Lee, Moo Hyun; Kim, Yeoungduk | Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Kohat Univ Sci & Technol, Dept Phys, Kohat 26000, Pakistan; Inst Basic Sci IBS, Ctr Underground Phys, Daejeon 34126, South Korea; Univ Sci & Technol UST, IBS Sch, Daejeon 34113, South Korea | khan, sajid/HGE-2406-2022; Kim, Hong Joo/AAE-1178-2022; Khan, Arshad/ABB-1566-2021; Lee, Moo/AAK-4266-2020 | 56017063700; 56266707900; 59051568100; 57198252980; 7410207253 | hongjoo@knu.ac.kr; | OPTIK | OPTIK | 0030-4026 | 1618-1336 | 242 | SCIE | OPTICS | 2021 | 2.84 | 41.1 | 0.23 | 2025-07-30 | 3 | 4 | Single crystal growth; Czochralski method; Molybdates; Luminescence; Cs2MoO4 | SINGLE-CRYSTALS; SCINTILLATION PROPERTIES; LUMINESCENCE; CAMOO4; DECAY; TUNGSTATE; SEARCH | Cs<sub>2</sub>MoO<sub>4</sub>; Czochralski method; Luminescence; Molybdates; Single crystal growth | Crystal growth; Energy gap; Light; Lithium compounds; Optical properties; Scintillation; Single crystals; X ray powder diffraction; Cs$++$; Czochralski technique; Grown crystals; Light yield; Molybdate; Neutrinoless double-beta decays; Optical-; Property; Single crystal growth; Temperature range; Molybdenum compounds | English | 2021 | 2021-09 | 10.1016/j.ijleo.2021.167035 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Reddish-orange emission from sol-gel derived Sm³⁺-doped Sr2La8(SiO4)6O2 phosphors | In this study, Sr2La8-x(SiO4)(6)O-2:xSm(3+) (where x=(0.01 P-6(3/2) transition, which offers the maximum absorption. The phosphor's excitation spectrum revealed a charge-transfer (CT) band that extended from 220 to 270 nm and was centered around 240 nm. The excitation spectra also exhibited several transitions of the Sm3+ ion, among these, the transition corresponding to 403 nm was chosen as the pumping wavelength owing to its prominence. The most intense emission peak was observed at 599 nm, this corresponds to the (4)G(5/2) -> H-6(7/2) transition. This emission's CIE chromaticity coordinates placed it in the reddish-orange region, suggesting that the titled phosphor is suited for orange-red LEDs and the red component in WLEDs. | Singh, Vijay; Lakshminarayana, G.; Prabhu, Nimitha S.; Kamath, Sudha D.; Singh, N.; Ashraf, Sara | Konkuk Univ, Dept Chem Engn, Seoul 05029, South Korea; Kyungpook Natl Univ, Intelligent Construct Automat Ctr, 80 Daehak Ro, Daegu 41566, South Korea; Manipal Acad Higher Educ, Manipal Inst Technol, Dept Phys, Manipal, Karnataka, India; Khwaja Fareed Univ Engn & Informat Technol, Dept Elect Engn, Rahim Yar Khan 64200, Pakistan | ; Prabhu, Nimitha/AAD-8802-2019 | 57205227140; 57194637883; 57205713756; 16245280000; 57202910594; 56019393700 | vijayjiin2006@yahoo.com; | OPTIK | OPTIK | 0030-4026 | 1618-1336 | 227 | SCIE | OPTICS | 2021 | 2.84 | 41.1 | 0.86 | 2025-07-30 | 12 | 12 | Photoluminescence; Sol-Gel; Phosphor; Reddish-orange emission | PHOTOLUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; EMITTING PHOSPHOR; SINGLE; GLASSES; CE3+ | Phosphor; Photoluminescence; Reddish-orange emission; Sol-Gel | Charge transfer; Citrus fruits; Crystallite size; Excited states; Ground state; Light emission; Optical properties; Phosphors; Silicon; Silicon compounds; Sol-gel process; Sol-gels; X ray diffraction; Bending vibrations; Diffuse reflectance spectrum; Diffuse reflection spectroscopy; Excitation spectrum; Normal vibration modes; Orange emissions; Photoluminescence measurements; Pumping wavelength; Fourier transform infrared spectroscopy | English | 2021 | 2021-02 | 10.1016/j.ijleo.2020.165935 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Protective efficacy of Capsicum frutescens fruits in pancreatic, hepatic and renal cell injury and their attenuation of oxidative stress in diabetic Wistar rats | According to our insight, it is the first investigation based on a literature review to establish the oxidative stress defense and hypoglycemic effects of Capsicum frutescens fruits. The anti-hyperglycemic effect of acetone extract of the fruits of C. frutescens (CFA) was imposed at 250mg/kg and 500mg/kg for 21 days in diabetic-induced Wistar rats. The rats were divided into five groups as control, diabetic, diabetic receiving glibenclamide, and two diabetic receiving CFA-treatment groups. Beginning on the 4th day and up to the 21st day of therapy, CFA at 250mg/kg and 500mg/kg demonstrated a substantial decrease in Blood Glucose Levels (BGL). CFA at 500mg/kg led to a considerable decrease in Low-Density Lipoprotein (LDL) cholesterol and a substantial increase in High-Density Lipoprotein (HDL) cholesterol, showing that CFA possesses anti-diabetic properties. Histopathological examinations reveal hepatic, pancreatic, and renal regularization. As a result, the current study clearly demonstrated more important antidiabetic activity of CFA extracts. | Maya, M. R.; Ananthi, V; Arun, A.; Kumar, P.; Govarthanan, M.; Rameshkumar, K.; Veeramanikandan, V.; Balaji, P. | MGR Coll, PG & Res Ctr Biotechnol, Hosur, India; Alagappa Univ, Dept Microbiol, Karaikkudi, Tamil Nadu, India; PRIST Univ, Dept Microbiol, Madurai Campus, Arasanoor, India; Alagappa Univ, Dept Anim Hlth & Management, Karaikkudi, Tamil Nadu, India; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea; Vivekananda Coll, Dept Zool, Madurai, Tamil Nadu, India; MGR Coll, PG & Res Ctr Microbiol, Hosur, India | Arun, Alagarsamy/F-8986-2019; Paulraj, Balaji/G-3392-2012; Arun, A./F-8986-2019; Govarthanan, Muthusamy/C-1491-2014; Muthusamy, Govarthanan/C-1491-2014; Veleeswaran, Ananthi/AAA-2152-2021; Ponnuchamy, Kumar/D-3470-2013 | 57363693900; 57078968600; 57078221100; 55173720800; 54881927600; 57214988335; 14623425600; 56644888000 | balaji_paulraj@yahoo.com; | JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE | J TAIBAH UNIV SCI | 1658-3655 | 15 | 1 | SCIE | MULTIDISCIPLINARY SCIENCES | 2021 | 3.459 | 41.2 | 0.37 | 2025-07-30 | 6 | 5 | Capsicum frutescens; Enzymatic antioxidant system; Non-enzymatic antioxidants; Hypoglycemic activity; Streptozotocin (STZ) induced Diabetes | ANTIOXIDANT; EXTRACT; KIDNEY; LIVER; INFLAMMATION; LIPOPROTEIN; APOPTOSIS; INSULIN; PLASMA; L. | Capsicum frutescens; Enzymatic antioxidant system; Hypoglycemic activity; Non-enzymatic antioxidants; Streptozotocin (STZ) induced Diabetes | English | 2021 | 2021-01-01 | 10.1080/16583655.2021.2024998 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Atrial Fibrillation Related and Unrelated Stroke Recurrence Among Ischemic Stroke Patients With Atrial Fibrillation | Background: Ischemic stroke with atrial fibrillation (AF) may recur despite appropriate treatment. It may be AF-related or AF-unrelated. We compared the factors associated with AF-related and AF-unrelated recurrences among ischemic stroke patients with AF.Methods: Patients with ischemic stroke and AF were enrolled from 11 centers in Korea. Ischemic stroke recurrence was classified as AF-related if the lesion pattern was compatible with cardioembolism without significant stenosis or as AF-unrelated if the lesion was more likely due to small vessel disease or arterial stenosis. Factors associated with stroke recurrence (AF-related and AF-unrelated) were investigated.Results: Among the 2,239 patients, 115 (5.1%) experienced recurrence (75 AF-related and 40 AF-unrelated). Factors independently associated with any stroke recurrence included AF diagnosed before stroke, small subcortical infarctions, and small scattered lesions in a single vascular territory. Type of AF was associated with the type of stroke recurrence, with persistent AF being associated with AF-related stroke [hazard ratio (HR) = 2.94, 95% confidence interval (CI) 1.69-5.26; p < 0.001]. By contrast, paroxysmal AF (HR = 3.76, 95% CI 1.56-9.04; p = 0.003), AF diagnosed before stroke (HR = 2.38, 95% CI 1.19-4.55; p = 0.014), small scattered lesions in a single vascular territory (reference: corticosubcortical lesion, HR = 3.19, 95% CI 1.18-8.63; p = 0.022), and the use of antiplatelet agents (HR = 2.11, 95% CI 1.11-4.03; p = 0.024) were independently associated with AF-unrelated stroke.Conclusion: Persistent AF was more associated with AF-related stroke recurrence, whereas paroxysmal AF was more associated with AF-unrelated stroke recurrence. A scattered lesion in a single vascular territory may predict AF-unrelated stroke recurrence. | Kim, Bum Joon; Hwang, Yang-Ha; Park, Man-Seok; Kim, Joon-Tae; Choi, Kang-Ho; Jung, Jin-Man; Yu, Sungwook; Kim, Chi Kyung; Oh, Kyungmi; Song, Tae-Jin; Kim, Yong-Jae; Park, Kwang-Yeol; Kim, Jeong-Min; Park, Jong-Ho; Choi, Jay Chol; Chung, Jong-Won; Bang, Oh Young; Kim, Gyeong-Moon; Heo, Sung Hyuk; Seo, Woo-Keun | Asan Med Ctr, Dept Neurol, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Chonnam Natl Univ Hosp, Dept Neurol, Gwangju, South Korea; Korea Univ, Ansan Hosp, Dept Neurol, Ansan, South Korea; Korea Univ, Anam Hosp, Dept Neurol, Seoul, South Korea; Korea Univ, Guro Hosp, Dept Neurol, Seoul, South Korea; Ewha Womans Univ, Seoul Hosp, Dept Neurol, Seoul, South Korea; Catholic Univ Korea, Dept Neurol, Eunpyeong St Marys Hosp, Seoul, South Korea; Chung Ang Univ Hosp, Dept Neurol, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Neurol, Seoul, South Korea; Hanyang Univ, Coll Med, Myongji Hosp, Dept Neurol, Goyang, South Korea; Jeju Natl Univ Hosp, Dept Neurol, Jeju, South Korea; Samsung Med Ctr, Dept Neurol, Seoul, South Korea; Kyung Hee Univ Hosp, Dept Neurol, Seoul, South Korea | ; Kim, Yong-Jae/JQW-5758-2023; Kim, Chi/AAR-9819-2020; Heo, Sung/P-3529-2019; Jung, Jin-Man/LJL-8037-2024; choi, jo/O-5940-2014; Choi, Kangho/HKV-1503-2023; HWANG, Yang-Ha/F-3068-2013; Kim, Jinkwon/AAR-6729-2021; Kim, Jeong-Min/ABH-2469-2021 | 57214661365; 7402311308; 7404490852; 23667663000; 36491173100; 15755814800; 56144716300; 56701057800; 16048029600; 55507164200; 55865497600; 36060099300; 7601375827; 55716977200; 7501392645; 55553751200; 7006620221; 35237139600; 18835720200; 22981667600 | shheo73@khu.ac.kr;mcastenosis@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 12 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.28 | 2025-07-30 | 4 | 4 | atrial fibrillation; cardioembolic brain infarction; recurrence; stroke; stroke mechanism | RISK; OUTCOMES | atrial fibrillation; cardioembolic brain infarction; recurrence; stroke; stroke mechanism | anticoagulant agent; antithrombocytic agent; aged; artery occlusion; Article; brain infarction; cardioembolic brain infarction; cerebrovascular accident; confidence interval; controlled study; diffusion weighted imaging; embolism; female; hazard ratio; heart disease; Holter monitoring; human; ischemic stroke; magnetic resonance angiography; major clinical study; male; neuroimaging; paroxysmal atrial fibrillation; persistent atrial fibrillation; recurrent disease; retrospective study; risk factor; South Korea; stroke patient; subcortex; transthoracic echocardiography | English | 2021 | 2021-10-21 | 10.3389/fneur.2021.744607 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Case Report: Brain Metastasis Confined to the Infarcted Area Following Stroke | Background: Ischemic stroke and cancer are frequent in the elderly and are the two common causes of death and disability. They are related to each other, and cancer may lead to ischemic stroke and vice versa. If patients with cancer exhibited recurrent acute neurological deficits after index stroke, a cancer-related stroke could be considered. However, a brain metastasis is another common cause of neurological complications and has a poor prognosis in patients with ischemic stroke and comorbid cancer. Here, we report a rare case of metastatic cancer that occurred after index stroke in a patient with renal cell carcinoma (RCC) and unusual imaging findings. Through the case, we discuss the pathophysiology and probable predisposing factors for metastatic disease in areas of infarction. Case Presentation: A 48-year-old man presented with sudden onset of left facial palsy and hemiparesis. He had a history of hypertension and RCC with pulmonary metastases treated with radical nephrectomy and chemotherapy. Brain magnetic resonance imaging (MRI) revealed multiple scattered acute infarctions in the right insular, frontal, parietal, and left occipital cortices. There were no definite sources of embolism. Eight months after the index stroke, he presented with subacute onset of progressive left hemiparesis. He had no focal neurological deficits except left-sided weakness and left nasolabial fold blunting. MRI scan demonstrated partial diffusion restriction on the right frontotemporal cortices without decline of apparent diffusion coefficient values on the corresponding lesions and T1 hypointensities and T2 hyperintensities with perilesional vasogenic edema on the right insular, frontal, parietal, and left occipital cortices, indicative of brain metastases confined to the area of previous infarctions. Conclusions: Cerebral infarctions can cause neovascularization and disruption of the blood-brain barrier. Moreover, the compartmentalized cavity formed by the ischemic injury may accept a large volume of metastatic tumor cells. Such an altered microenvironment of infarcted tissue would be suitable for the colonization and proliferation of metastatic seed. Further, brain metastases should be considered, in addition to recurrence, when new focal neurological deficits develop in patients with ischemic stroke and comorbid cancer. | Gwak, Dong-Seok; Hwang, Yang-Ha; Kim, Yong-Won | Kyungpook Natl Univ, Sch Med, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea | HWANG, Yang-Ha/F-3068-2013 | 57205148053; 7402311308; 56203298200 | yw.kim23@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.18 | 2025-07-30 | 2 | 2 | metastasis; cerebral infarction; magnetic resonance imaging; renal cell carcinoma; neoplasm | ISCHEMIC-STROKE; CANCER | cerebral infarction; magnetic resonance imaging; metastasis; neoplasm; renal cell carcinoma | adult; Article; brain mapping; brain metastasis; cancer localization; case report; cerebrovascular accident; clinical article; clinical feature; facial nerve paralysis; hemiparesis; human; human tissue; international normalized ratio; lung embolism; lung metastasis; male; middle aged; National Institutes of Health Stroke Scale; nuclear magnetic resonance imaging; partial thromboplastin time; prothrombin time; renal cell carcinoma; tumor volume | English | 2021 | 2021-01-29 | 10.3389/fneur.2020.617142 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Correlation Between Maximal Tongue Pressure and Swallowing Function in Spinal and Bulbar Muscular Atrophy | Background: Spinal and bulbar muscular atrophy (SBMA) is an X-lined motor neuron disease characterized by progressive muscle weakness, bulbar palsy, and dysphagia. Dysphagia is associated with tongue weakness, which is a common manifestation of SBMA. This study aimed to investigate the correlations between tongue pressure and dysphagia in patients with SBMA. Materials and Methods: Thirty-nine genetically confirmed SBMA patients underwent a videofluoroscopic swallowing study (VFSS) and tongue pressure assessment. Then, we analyzed the maximal tongue pressure (MTP), oral transit time, penetration-aspiration scale (PAS), videofluoroscopic dysphagia scale (VDS), amyotrophic lateral sclerosis functional rating scale-revised (ALSFRS-R), and 6-min walk test (6MWT). Pearson and Spearman correlation coefficients were calculated to analyze the association of the MTP with clinical, swallowing, and functional parameters. Results: In the correlation analysis, MTP was negatively correlated with disease duration (r = -0.396, p = 0.013) and VDS (r = -0.426, p = 0.007), and positively correlated with ALSFRS-R (r = 0.483, p = 0.002) and 6MWT (r = 0.396, p = 0.013). The bulbar (r = 0.367, p = 0.022) and gross motor (r = 0.486, p = 0.002) domains of the ALSFRS-R were correlated with MTP. Conclusion: Tongue pressure assessment can be used as a safe and easy tool to assess swallowing function in SBMA patients. Moreover, MTP reflects functional states, including activities of daily living and gait performance, showing it to be a potential biomarker for physical performance in SBMA. | Gwak, Dae-Won; Jung, Seung-Hwan; Min, Yu-Sun; Park, Jin-Sung; Cho, Hee-Jin; Park, Donghwi; Hong, Min Woo; Kang, Min-Gu | Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Rehabil Med, Daegu, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Univ Ulsan, Coll Med, Ulsan Univ Hosp, Dept Phys Med & Rehabil, Ulsan, South Korea; Dong A Univ, Dong A Univ Hosp, Coll Med, Dept Phys Med & Rehabil, Busan, South Korea | Park, Donghwi/GYQ-6185-2022 | 57212010177; 57223283117; 48061349800; 44061744500; 55937716400; 56606561400; 57226404481; 57205351774 | kangmingu@dau.ac.kr; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 12 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.37 | 2025-07-30 | 6 | 4 | bulbo-spinal atrophy X-linked; motor neuron disease; neurodegenerative diseases; tongue; deglutition disorders | RECESSIVE BULBOSPINAL NEURONOPATHY; KENNEDY-DISEASE; DYSPHAGIA; DIAGNOSIS | bulbo-spinal atrophy X-linked; deglutition disorders; motor neuron disease; neurodegenerative diseases; tongue | adult; Amyotrophic Lateral Sclerosis Functional Rating Scale; Article; bulbar paralysis; clinical article; correlational study; dysphagia; functional assessment; hand tremor; human; human tissue; Kennedy disease; male; middle aged; motoneuron; motor neuron disease; muscle weakness; rating scale; retrospective study; scoring system; six minute walk test; swallowing; tongue | English | 2021 | 2021-09-01 | 10.3389/fneur.2021.704788 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Article | Crystal Structure and Luminescence of Sn,I,Cs,Na-Y, a Lead-Free Zeolite Containing Tetrahedrally Distorted Cubes of Sn4I4⁴⁺ | Partially hydrated zeolite Cs, Na-Y (vertical bar Cs51Na24 vertical bar [Si117Al75O384]-FAU) was allowed to react with SnI2. The crystal structures of fully dehydrated Cs,Na-Y and of the partially hydrated product Sn, I, Cs, Na-Y (vertical bar(Na4Cs6Sn4I6)(0.625)Cs46Na21.5(H2O)(26)vertical bar [Si117Al75O384]-FAU) were determined by single-crystal crystallography using synchrotron X-radiation. They were refined in the space group Fd (3) over barm, (a = 24.838(2) angstrom and 24.873(2) angstrom) with all unique data to the final error indexes R-1 = 0.053 and 0.060 for the 1885 and 1400 reflections for which F-o >= 4 sigma(F-o), respectively. Tetrahedrally distorted Sn4I44+ cubes, symmetry (4) over bar 3m (T-d), center 7.9% of the supercages in the zeolite crystal studied. Each is supported there by four Na+ ions and six Cs+ ions that bridge between its I- ions and oxygen atoms of the zeolite framework. Each Sn2+ ion bonds to an additional I- ion in the plane of a 12-ring, which in turn bonds to a Sn2+ ion in a Sn4I44+ group in a neighboring supercage. In this way, the Sn4I44+ units connect to form a three-dimensional continuum with formula Na4Cs6Sn4I612+ per supercage. Partially hydrated zeolite Sn,I,Cs,Na-Y has a broad luminescence range from 400 to 800 nm. Upon further hydration, the luminescence spectrum evolved, and its color changed from pale yellow to white. | Lim, Hyeon Seung; Park, Gi Beom; Kim, Joon Young; Kim, Cheol Woong; Heo, Nam Ho; Seff, Karl | Kyungpook Natl Univ, Sch Appl Chem Engn, Dept Appl Chem, Lab Struct Chem, Daegu 41566, South Korea; Korea Inst Water Technol Certificat, Daegu 43008, South Korea; Univ Hawaii, Dept Chem, Honolulu, HI 96822 USA | nhheo@knu.ac.kr; | JOURNAL OF PHYSICAL CHEMISTRY C | J PHYS CHEM C | 1932-7447 | 1932-7455 | 125 | 28 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2021 | 4.177 | 41.3 | 0 | THALLOUS ION-EXCHANGE; OPTICAL-PROPERTIES; QUANTUM DOTS; TIN; CONFIRMATION; EMISSION; 6-RINGS; LTA; CDS | English | 2021 | 2021-07-22 | 10.1021/acs.jpcc.1c04350 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Article | Etiological Approach to Understanding Recanalization Failure in Intracranial Large Vessel Occlusion and Thrombectomy: Close to Embolism but Distant From Atherosclerosis | Introduction: In patients with intracranial large vessel occlusion (LVO) who undergo endovascular treatment (EVT), recanalization failure may be related to intracranial atherosclerotic stenosis (ICAS). We evaluated whether the risk factors of recanalization failure could possibly be a marker of ICAS among various types of LVO. Methods: From a multicenter registry, patients with middle cerebral artery M1 segment occlusions who underwent thrombectomy within 24 h were included. Based on the on-procedure and post-procedure angiographic findings, patients were classified into embolic, ICAS-related, tandem occlusion, and recanalization failure groups. Recanalization failure was defined if the occluded vessel could not be recanalized by stent retrieval, contact aspiration, or local lytics treatment. Risk factors, imaging markers, and EVT methods were compared between groups. Results: Among 326 patients, 214 were classified as embolism, 76 as ICAS, 16 as tandem, and 20 as recanalization failure. The group with recanalization failure showed higher scores on the National Institutes of Health Stroke Scale (NIHSS) (median, 16.0 vs. 14.5 vs. 14.0 vs. 17.0, p = 0.097), frequent atrial fibrillation (59.3 vs. 18.4 vs. 0 vs. 40.0% p < 0.001), and elevation in erythrocyte sedimentation rate (ESR) (14.5 +/- 15.7 vs. 15.0 +/- 14.1 vs. 21.2 +/- 19.5 vs. 36.0 +/- 32.9, p < 0.001) among the groups. The rate of computed tomography angiography-based truncal-type occlusion in recanalization failure group was not as high as that in the ICAS group (8.1 vs. 37.5 vs. 0 vs. 16.7%, p < 0.001). Balloon guide catheters (BGC) were less frequently utilized in the recanalization failure group as compared to their use in the other groups (72.0 vs. 72.4 vs. 62.5 vs. 30.0%, p = 0.001). In the multivariable analysis, initial higher NIHSS [odds ratio (OR), 1.11 95% confidence interval (CI), 1.01-1.22 p = 0.027], higher ESR (OR, 1.03 CI, 1.01-1.05 p = 0.006), and non-use of BGCs (OR, 3.41 CI, 1.14-10.17 p = 0.028) were associated with recanalization failure. In M1 occlusions, the predominant mechanism of recanalization failure was presumed to be embolic in 80% and due to ICAS in 20%. Conclusion: The analysis of recanalization failures does not suggest an underlying predominant ICAS mechanism. Sufficient utilization of thrombectomy devices and procedures may improve the rates of recanalization. | Lee, Seong-Joon; Park, So Young; Hong, Ji Man; Choi, Jin Wook; Kang, Dong-Hun; Kim, Yong-Won; Kim, Yong-Sun; Hong, Jeong-Ho; Kim, Chang-Hyun; Yoo, Joonsang; Nogueira, Raul G.; Hwang, Yang-Ha; Sohn, Sung-Il; Lee, Jin Soo | Ajou Univ, Med Ctr, Sch Med, Dept Neurol, Suwon, South Korea; Ajou Univ, Med Ctr, Sch Med, Dept Radiol, Suwon, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurol, Daegu, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Neurol, Daegu, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Neurosurg, Daegu, South Korea; Natl Hlth Insurance Serv Ilsan Hosp, Dept Neurol, Goyang, South Korea; Emory Univ, Sch Med, Dept Neurol, Marcus Stroke & Neurosci Ctr,Grady Mem Hosp, Atlanta, GA 30322 USA | Hong, Ji Man/AAE-2686-2022; Hong, Jeong-Ho/T-8099-2018; HWANG, Yang-Ha/F-3068-2013; Nogueira, Raul/LSI-7118-2024; Kim, Chang-Hyun/I-5166-2012; Hong, Jeong-Ho/AAE-1002-2022 | 57218256679; 57216746033; 55729426200; 55722501000; 8977805800; 56203298200; 57095278300; 55931654800; 56059033400; 55261162200; 7102312928; 7402311308; 36479287000; 55963063300 | jinsoo22@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.55 | 2025-07-30 | 6 | 6 | intracranial large vessel occlusion; recanalization failure; thrombectomy; middle cerebral artery; endovascular treatment | ACUTE ISCHEMIC-STROKE; ENDOVASCULAR TREATMENT; MECHANICAL THROMBECTOMY; BURDEN SCORE; OUTCOMES; ANGIOGRAPHY; CHALLENGES; SIGN | endovascular treatment; intracranial large vessel occlusion; middle cerebral artery; recanalization failure; thrombectomy | adult; aged; artery embolism; Article; atrial fibrillation; blood vessel occlusion; carotid atherosclerosis; computed tomographic angiography; controlled study; diagnostic imaging; disease registry; erythrocyte sedimentation rate; female; human; major clinical study; male; middle aged; middle cerebral artery occlusion; multicenter study; National Institutes of Health Stroke Scale; patient coding; postoperative period; preoperative period; recanalization; retrospective study; risk factor; thrombectomy; treatment failure; very elderly | English | 2021 | 2021-01-18 | 10.3389/fneur.2020.598216 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Gait in Benign Paroxysmal Positional Vertigo | Purpose: Patients with benign paroxysmal positional vertigo (BPPV) experience gait unsteadiness not only during the attacks but also between the spells. This study aimed to measure gait changes in BPPV and determine whether these changes are associated with the involved canal or lesion side. Methods: We recruited 33 patients with a diagnosis of unilateral BPPV. Patients with other vestibular or central nervous system disorders were excluded. Gait was assessed using the GAITRite (TM) system before and after canalith repositioning treatment (CRT). Results: After CRT, improvements were observed in various gait parameters including velocity (p < 0.001), cadence (p < 0.001), functional ambulation profile (p = 0.011), and the coefficient of variation of stride time (p = 0.004). Exploration of the center of pressure (COP) distribution also revealed improved stabilization during locomotion after CRT. The spatiotemporal gait variables did not differ between the patients with horizontal- and posterior-canal BPPV, or between the ipsilesional and contralesional sides before CRT. Conclusions: The gait parameters reflecting velocity and rhythmicity along with stability of COP distribution improved after the resolution of BPPV. Episodic overexcitation of semicircular canal may impair the vestibular information that is integrated with the other reference afferent systems and lead to impaired gait performance. | Lim, Yong-Hyun; Kang, Kyunghun; Lee, Ho-Won; Kim, Ji-Soo; Kim, Sung-Hee | Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ, Ctr Self Org Software Platform, Daegu, South Korea; Kyungpook Natl Univ, Dept Neurol, Sch Med, Daegu, South Korea; Kyungpook Natl Univ, Brain Sci & Engn Inst, Daegu, South Korea; Seoul Natl Univ, Bundang Hosp, Coll Med, Dept Neurol, Seoul, South Korea; Ewha Womans Univ, Mokdong Hosp, Sch Med, Dept Neurol, Seoul, South Korea | Kim, Ji-Soo/D-8744-2012 | 57202416711; 55365592200; 35337240700; 8055087900; 55718655600 | sefirot36@naver.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 12 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.46 | 2025-07-30 | 9 | 8 | vertigo; BPPV; gait; posture; vestibular | BPPV; gait; posture; vertigo; vestibular | adult; Article; benign paroxysmal positional vertigo; canalith repositioning treatment; clinical article; female; gait; human; locomotion; male; manipulative medicine; middle aged; mobilization; semicircular canal; spatiotemporal analysis; stride time; treatment outcome; unsteady gait; walking speed | English | 2021 | 2021-02-12 | 10.3389/fneur.2021.633393 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Genomic Association Study for Cognitive Impairment in Parkinson's Disease | Background: Cognitive impairment is very common in Parkinson's disease (PD) and constitutes the most debilitating complication of this disease. However, to date, few studies have investigated a genome-wide association in the development of cognitive impairment of PD. We aimed to identify the genetic loci associated with cognitive impairment in patients with sporadic PD by ethnicity-specific genotyping. Materials and methods: We recruited 1,070 patients with PD and performed a genome-wide association study using the Korean Chip, a microarray chip containing 827,400 single-nucleotide polymorphisms (SNPs) optimized for the Korean population. Multiple logistic regression models adjusting for age, sex, years of education, and disease duration were used to compare between patients with and without cognitive impairment, which was defined using the Mini-Mental Status Examination (MMSE) score (MMSE score >= 26 vs. = 24 vs. < 24). Results: RYR2 SNP rs10495397 was most significantly associated with cognitive impairment based on the MMSE scores (OR = 3.21; 95% CI = 1.96-5.25, P = 3.36 x 10(-6)) and CASC17 showed the strongest association with cognitive impairment based on the MoCA scores. However, none of the SNPs were statistically significant after Bonferroni correction. Conclusion: RYR2 may play a role in cognitive impairment in PD by the pathogenic mechanism of neuroinflammation. However, more studies are needed to replicate and validate the results of our functional study. | Park, Kye Won; Jo, Sungyang; Kim, Mi Sun; Jeon, Sang Ryong; Ryu, Ho-Sung; Kim, Jinhee; Park, Young-Min; Koh, Seong-Beom; Lee, Jae-Hong; Chung, Sun Ju | Univ Ulsan, Asan Med Ctr, Dept Neurol, Coll Med, Seoul, South Korea; Univ Ulsan, Dept Neurosurg, Asan Med Ctr, Coll Med, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Korea Univ, Dept Neurol, Guro Hosp, Seoul, South Korea; Dobong Hosp, Dept Neurol, Seoul, South Korea | kim, jong-eun/B-3550-2017 | 57194448346; 57204969008; 57201330725; 57203521670; 57014206500; 57211342579; 55966365300; 8573789300; 26660145800; 56882955600 | sjchung@amc.seoul.kr; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 11 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.73 | 2025-07-30 | 9 | 9 | Parkinson' s disease; cognitive impairment; genome-wide association studies; dementia; ryanodine receptor | cognitive impairment; dementia; genome-wide association studies; Parkinson's disease; ryanodine receptor | adult; age distribution; aged; Article; cognitive defect; disease duration; educational status; ethnic difference; female; gene; gene locus; genetic analysis; genetic association; genetic variability; genotype; human; Korean (people); major clinical study; male; Mini Mental State Examination; Montreal cognitive assessment; onset age; Parkinson disease; RYR2 gene; sex difference; single nucleotide polymorphism; very elderly | English | 2021 | 2021-02-04 | 10.3389/fneur.2020.579268 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | High Chloride Burden and Clinical Outcomes in Critically Ill Patients With Large Hemispheric Infarction | Background: In general, disease severity has been found to be associated with abnormal chloride levels in critically ill patients, but hyperchloremia is associated with mixed results regarding patient-centered clinical outcomes. We aimed to investigate the impact of maximum serum chloride concentration on the clinical outcomes of critically ill patients with large hemispheric infarction (LHI). Methods: We conducted a retrospective observational cohort study using prospective institutional neurocritical care registry data from 2013 to 2018. Patients with LHIs involving over two-thirds of middle cerebral artery territory, with or without infarction of other vascular territories, and a baseline National Institutes of Health Stroke Scale score of >= 13 were assessed. Those with a baseline creatinine clearance of <15 mL/min and required neurocritical care for <72 h were excluded. Primary outcome was in-hospital mortality. Secondary outcomes included 3-month mortality and acute kidney injury (AKI) occurrence. Outcomes were compared to different maximum serum chloride levels (5 mmol/L increases) during the entire hospitalization period using multivariable logistic regression analyses. Results: Of 90 patients, 20 (22.2%) died in-hospital. Patients who died in-hospital had significantly higher maximum serum chloride levels than did those who survived up to hospital discharge (139.7 +/- 8.1 vs. 119.1 +/- 10.4 mmol/L; p < 0.001). After adjusting for age, sex, and Glasgow coma scale score, each 5-mmol/L increase in maximum serum chloride concentration was independently associated with an increased risk of in-hospital mortality (adjusted odds ratio (aOR), 4.34; 95% confidence interval [CI], 1.98-9.50; p < 0.001). Maximum serum chloride level was also an independent risk factor for 3-month mortality (aOR, 1.99 [per 5 mmol/L increase]; 95% CI, 1.42-2.79; p < 0.001) and AKI occurrence (aOR, 1.57 [per 5 mmol/L increase]; 95% CI, 1.18-2.08; p = 0.002). Conclusions: High maximum serum chloride concentrations were associated with poor clinical outcomes in critically ill patients with LHI. This study highlights the importance of monitoring serum chloride levels and avoiding hyperchloremia in this patient population. | Gwak, Dong-Seok; Chung, Inyoung; Kim, Baik-Kyun; Lee, Sukyoon; Jeong, Han-Gil; Kim, Yong Soo; Chae, Heeyun; Park, Chan-Young; Han, Moon-Ku | Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Nowon Eulji Med Ctr, Dept Neurol, Seoul, South Korea; Chungbuk Natl Univ Hosp, Dept Neurol, Cheongju, South Korea; Inje Univ, Busan Paik Hosp, Dept Neurol, Busan, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Neurosurg & Neurol, Div Neurocrit Care, Seongnam, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Neurol, Seongnam, South Korea; Seoul Natl Univ, Coll Med, Dept Neurol, Seoul, South Korea | ; Han, Moon-Ku/J-5703-2012; Kim, Yong Soo/KGK-4606-2024; Jeong, Han-Gil/K-4171-2019 | 57205148053; 57194595472; 57205147789; 57217310224; 58378056700; 57224188233; 57224186239; 57188551133; 35361858400 | mkhan@snu.ac.kr; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 12 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 0.55 | 2025-07-30 | 11 | 12 | chloride; critical care; cerebral infarction; mortality; acute kidney injury; brain edema | ACUTE KIDNEY INJURY; IN-HOSPITAL MORTALITY; INTENSIVE-CARE-UNIT; HEMORRHAGIC TRANSFORMATION; FLUID MANAGEMENT; ISCHEMIC-STROKE; HYPERCHLOREMIA; ASSOCIATION; SALINE; HYPOTHERMIA | acute kidney injury; brain edema; cerebral infarction; chloride; critical care; mortality | chloride; creatinine; acute kidney failure; adult; age; aged; Article; brain infarction; chloride blood level; clinical outcome; cohort analysis; confidence interval; controlled study; creatinine clearance; critically ill patient; female; Glasgow coma scale; hospital discharge; hospitalization; human; in-hospital mortality; major clinical study; male; middle cerebral artery; mortality risk; multivariate logistic regression analysis; National Institutes of Health Stroke Scale; observational study; odds ratio; patient registry; prospective study; retrospective study; sex | English | 2021 | 2021-05-20 | 10.3389/fneur.2021.604686 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Impact of Left Atrial Appendage Morphology on Recurrence in Embolic Stroke of Undetermined Source and Atrial Cardiopathy | Background: The left atrial appendage (LAA) is a major source of thrombus and non-chicken wing (CW). LAA morphology is a risk factor for embolic events in atrial fibrillation. However, the association of non-CW morphology with embolic stroke recurrence is unknown in patients with embolic stroke of undetermined source (ESUS) and atrial cardiopathy. Methods: We conducted retrospective analyses using a prospective institutional stroke registry (2013-2017). Patients with ESUS and atrial cardiopathy were enrolled. Atrial cardiopathy was diagnosed if an increased left atrial diameter (>40 mm, men; >38 mm, women), supraventricular tachycardia, or LAA filling defect on computed tomography (CT) were present. Patients admitted >24 h after onset were excluded. LAA morphology was evaluated using CT and categorized into CW vs. non-CW types. The primary outcome was embolic stroke recurrence. Multivariable Cox proportional hazards models were used to examine the independent association between LAA morphology and outcome. Results: Of 157 patients, 81 (51.6%) had CW LAA morphology. The median follow-up was 41.5 (interquartile range 12.3-58.5) months corresponding to 509.8 patient years. In total, 18 participants experienced embolic stroke recurrences (3.80 per 100 patient-years). Non-CW morphology was more associated with embolic stroke recurrence than CW morphology (hazard ratio (HR), 3.17; 95% confidence interval (CI), 1.13-8.91; p = 0.029). After adjusting for CHA(2)DS(2)-VASc score and number of potential embolic sources, non-CW morphology showed an independent association with outcome (adjusted HR, 2.90; 95% CI, 1.02-8.23; p = 0.045). Conclusions: The LAA morphology types may help identify high risk of embolic stroke recurrence in ESUS with atrial cardiopathy. LAA morphology in atrial cardiopathy may provide clues for developing therapies tailored to specific mechanisms. | Gwak, Dong-Seok; Choi, WooChan; Kim, Yong-Won; Kim, Yong-Sun; Hwang, Yang-Ha | Kyungpook Natl Univ Hosp, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurol, Daegu, South Korea; Kyungpook Natl Univ Hosp, Dept Radiol, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Radiol, Daegu, South Korea | HWANG, Yang-Ha/F-3068-2013 | 57205148053; 57225111001; 56203298200; 57095278300; 7402311308 | yangha.hwang@gmail.com; | FRONTIERS IN NEUROLOGY | FRONT NEUROL | 1664-2295 | 12 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2021 | 4.086 | 41.3 | 1.01 | 2025-07-30 | 10 | 11 | recurrence; embolic strokes; atrial appendage; cerebral infarction; CT scan | NATRIURETIC PEPTIDE; RISK STRATIFICATION; COMPUTED-TOMOGRAPHY; FLOW VELOCITY; FIBRILLATION; THROMBOEMBOLISM; PREVENTION | atrial appendage; cerebral infarction; CT scan; embolic strokes; recurrence | aged; Article; brain infarction; cardioembolic stroke; CHA2DS2-VASc score; computer assisted tomography; female; follow up; heart atrium appendage; heart disease; hospital admission; human; major clinical study; male; recurrence risk; recurrent disease; retrospective study; supraventricular tachycardia | English | 2021 | 2021-06-22 | 10.3389/fneur.2021.679320 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Laser-Induced Photoreduction for Selective Tuning of the Oxidation State and Crystal Structure of Hematite Nanorods | The laser-induced photoreduction process is proposed to obtain patterned magnetite (Fe3O4) nanorod (NR) arrays or the oxygen vacancy (OV) engineering of the hematite (alpha-Fe2O3) NRs. A continuous-wave laser beam, with a wavelength of 532 nm, is focused on the hematite NRs that are in contact with a liquid reducing agent to provide the thermal energy for triggering the reduction reaction. The path of the laser beam can be controlled through computer software, enabling the reduction reaction to occur in the arbitrary desired area. At lower laser powers than that at which the direct transformation of hematite into magnetite occurs, hematite NRs with a high concentration of OV are produced. The high OV concentration contributes to improving the electrical conductivity of the hematite NRs by increasing the donor density. The OV-abundant hematite NR array is applied to a photoanode in a photoelectrochemical (PEC) water-splitting cell. It exhibits an enhanced PEC performance due to its donor density being higher in comparison with the bare hematite NRs. | Kong, Heejung; Hwang, Suwon; Lee, Junhee; Park, Suk Woo; Han, Yong-Su; Yeo, Junyeob | Kyungpook Natl Univ, Dept Phys, Novel Appl Nano Opt Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Instrumental Anal Ctr, Daegu 41566, South Korea | ; Yeo, Junyeob/I-1287-2013; Kong, Heejung/CAG-1032-2022 | 57552927300; 57211075602; 57364964200; 57209326663; 57209332224; 58692645200 | junyeob@knu.ac.kr; | JOURNAL OF PHYSICAL CHEMISTRY C | J PHYS CHEM C | 1932-7447 | 1932-7455 | 125 | 32 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2021 | 4.177 | 41.3 | 0.56 | 2025-07-30 | 9 | 9 | IRON-OXIDES; HEAT ACCUMULATION; HIGH-PERFORMANCE; WATER OXIDATION; OXYGEN VACANCY; MAGNETITE; REDUCTION; NANOPARTICLES; ALPHA-FE2O3; GROWTH | Continuous wave lasers; Crystal structure; Laser beams; Magnetite; Nanorods; Photoelectrochemical cells; Electrical conductivity; Hematite nanorods; Liquid reducing agent; Oxidation state; Photoelectrochemicals; Reduction reaction; Selective tuning; Water splitting; Hematite | English | 2021 | 2021-08-19 | 10.1021/acs.jpcc.1c02254 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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