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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 | Longitudinal evolution of non-motor symptoms according to age at onset in early Parkinson's disease | Objective: To investigate the longitudinal change of non-motor symptoms according to the age at onset in Parkinson's disease (PD). Methods: This cohort study using the Parkinson's Progression Markers Initiative data included 405 patients with early PD. They were classified into late-onset (age at onset >= 70 years, n = 63), middle-onset (50 to 69 years, n = 268), and young-onset (< 50 years, n = 74) groups. Non-motor symptoms were assessed with well-validated instruments covering neuropsychiatric, sleep-related, and autonomic symptoms yearly over 5 years of follow-up. Dopamine transporter imaging was also performed at baseline and the 1-, 2-, and 4-year follow-up visits. Results: The late-onset group had a mean decrease of 0.35 more points per year in the Montreal Cognitive Assessment (MoCA) scores (p = 0.008) and increases of 0.32 more points in the 15-item Geriatric Depression Scale scores (p - 0.002) and 0.72 more points in the State-Trait Anxiety Inventory-state scores (p - 0.022) compared to the middle-onset group. The young-onset group had a mean decrease of 0.22 fewer points per year in the MoCA scores (p - 0.002) than the middle-onset group. The other non-motor progression did not differ among the groups. No significant differences were found between the late-onset, middle-onset, and young-onset groups in the changes of striatal DAT binding ratios. Conclusion: Compared to middle-onset PD, late-onset PD showed a faster progression of cognitive impairment along with depression and anxiety, and young-onset PD showed a slower progression of cognitive impairment in the early phases of the disease. These differences do not appear to be associated with the longitudinal changes in striatal dopaminergic activities. | Kim, Ryul; Shin, Jung Hwan; Park, Sangmin; Kim, Han-Joon; Jeon, Beomseok | Inha Univ Hosp, Dept Neurol, Incheon, South Korea; Seoul Natl Univ, Dept Neurol, Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Neurol, Daegu, South Korea | Shin, Jung/V-9220-2019; Kim, Jin-Wook/J-5442-2012 | 56591470700; 57200396056; 57197524938; 36067006300; 7102161956 | brain@snu.ac.kr; | JOURNAL OF THE NEUROLOGICAL SCIENCES | J NEUROL SCI | 0022-510X | 1878-5883 | 418 | SCIE | CLINICAL NEUROLOGY;NEUROSCIENCES | 2020 | 3.181 | 53.1 | 0.65 | 2025-06-25 | 13 | 16 | Parkinson's disease; Age at onset; Late-onset; Young-onset; Non-motor symptom | QUALITY-OF-LIFE; YOUNG-ONSET; CLINICAL-FEATURES; MOTOR; PREVALENCE; DISORDERS; SUBTYPES | Age at onset; Late-onset; Non-motor symptom; Parkinson's disease; Young-onset | Age of Onset; Aged; Anxiety; Cognitive Dysfunction; Cohort Studies; Humans; Parkinson Disease; antiparkinson agent; dopamine transporter; adult; aged; anxiety disorder; Article; bradykinesia; cohort analysis; corpus striatum; depression; disease duration; disease exacerbation; Epworth sleepiness scale; female; follow up; Geriatric Depression Scale; Hoehn and Yahr scale; human; longitudinal study; major clinical study; male; Montreal cognitive assessment; onset age; parasomnia; Parkinson disease; priority journal; putamen; rigidity; single photon emission computed tomography; State Trait Anxiety Inventory; tremor; Unified Parkinson Disease Rating Scale; anxiety; cognitive defect; complication; onset age; Parkinson disease | English | 2020 | 2020-11-15 | 10.1016/j.jns.2020.117157 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Sequential change point detection in ARMA-GARCH models | This study investigates a sequential procedure to detect changes in the parameter of ARMA-GARCH models. Following the test procedure by Berkes et al. [Sequential change-point detection in GARCH(p,q) models. Econ Theory. 2004;20:1140-1167], we introduce a stopping time for monitoring procedure based on quasi-likelihood score function of ARMA-GARCH model. The asymptotic properties of the monitoring procedure are established under the null and alternative hypotheses. We demonstrate the validity of the test procedure through simulation study. A real data application is provided for illustration. | Song, Junmo; Kang, Jiwon | Kyungpook Natl Univ, Dept Stat, Daegu, South Korea; Jeju Natl Univ, Dept Comp Sci & Stat, Jeju 63243, South Korea | 23470710200; 56123620200 | jwkang@jejunu.ac.kr; | JOURNAL OF STATISTICAL COMPUTATION AND SIMULATION | J STAT COMPUT SIM | 0094-9655 | 1563-5163 | 90 | 8 | SCIE | COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS;STATISTICS & PROBABILITY | 2020 | 1.424 | 53.2 | 0.38 | 2025-06-25 | 8 | 8 | Sequential test for parameter change; sequential change detection; score based test; ARMA-GARCH models | PARAMETER CHANGE | ARMA-GARCH models; score based test; sequential change detection; Sequential test for parameter change | English | 2020 | 2020-05-23 | 10.1080/00949655.2020.1734807 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Meeting Abstract | Gastrointestinal Events and Management Strategies for Patients with Acute Myeloid Leukemia (AML) in First Remission Receiving CC-486 Maintenance Therapy in the Randomized, Placebo-Controlled, Phase III QUAZAR AML-001 Trial | Ravandi, Farhad; Pocock, Christopher; Selleslag, Dominik; Montesinos, Pau; Sayar, Hamid; Musso, Maurizio; Figuera Alvarez, Angela; Safah, Hana; Tse, William; Sohn, Sang Kyun; Hiwase, Devendra; Chevassut, Timothy; Pierdomenico, Francesca; La Torre, Ignazia; Skikne, Barry; Kumar, Keshava; Dong, Qian; Beach, C. L.; Dombret, Herve | Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA; Kent & Canterbury Hosp, Canterbury, Kent, England; AZ Sint Jan Brugge Oostende AV, Brugge, Belgium; Hosp Univ & Politecn La Fe, Valencia, Spain; Inst Salud Carlos III, CIBERONC, Madrid, Spain; Indiana Univ, Ctr Canc, Indianapolis, IN USA; La Maddalena Casa Cura, Palermo, Italy; Hosp Univ La Princesa, Madrid, Spain; Tulane Univ, Hlth Sci Ctr, New Orleans, LA 70118 USA; Univ Louisville, Sch Med, Louisville, KY 40292 USA; Kyungpook Natl Univ Hosp, Daegu, South Korea; Royal Adelaide Hosp, Adelaide, SA, Australia; Brighton & Sussex Med Sch, Brighton, E Sussex, England; Portuguese Inst Oncol Lisbon, Lisbon, Portugal; Celgene, Boudry, Switzerland; Bristol Myers Squibb Co, Princeton, NJ USA; Univ Kansas, Med Ctr, Kansas City, KS 66103 USA; Hop St Louis, Assistance Publ Hop Paris AP HP, Hematol, Paris, France; Univ Paris, Inst Rech St Louis, Paris, France | Ravandi, Farhad/GOH-3538-2022; Montesinos, Pau/GYU-2673-2022 | CLINICAL LYMPHOMA MYELOMA & LEUKEMIA | CL LYMPH MYELOM LEUK | 2152-2650 | 2152-2669 | 20 | SCIE | HEMATOLOGY;ONCOLOGY | 2020 | 3.231 | 53.3 | 1 | CC-486; acute myeloid leukemia; maintenance; gastrointestinal; safety; AML | English | 2020 | 2020-09 | 바로가기 | 바로가기 | |||||||||||||||
| ○ | ○ | Article | (K,Na)NbO3-LiNbO3nanocube-based flexible and lead-free piezoelectric nanocomposite energy harvesters | The research on harvesting the wasted mechanical energy and using it as a useful energy source has been in the spotlight. Conventional ceramic-based devices have disadvantages such as mechanical brittleness and high-temperature processing. To overcome these weaknesses, the piezoceramic materials mixed with polymer matrix have been studied to produce flexible piezoelectric devices. Herein, a piezoelectric composite film is fabricated by mixing lead-free 0.942[Na0.535K0.480NbO3]-0.058LiNbO(3)(KNNLN) nanocube powder with polydimethylsiloxane (PDMS) matrix. KNNLN nanocube powder is synthesized by a solid-state reaction method, which can typically present outstanding stoichiometric composition and perovskite crystalline structure. The cube-shaped particles are thought to show higher stress concentration at corners and edges of the nanocube than spherical particles when external mechanical input is applied. The flexible KNNLN nanocube-PDMS nanocomposite device generates the piezoelectric signals of similar to 28 V and similar to 220 nA during bending motion, which is a high-performance energy harvesting efficiency compared to previous KNN-based flexible piezoelectric composites generators. KNNLN nanocube-based composite can replace toxic lead-based nanocomposites for future flexible devices such as eco-friendly self-powered energy harvester and biocompatible sensor. | Kim, Hyunseung; Sohn, Changwan; Hwang, Geon-Tae; Park, Kwi-Il; Jeong, Chang Kyu | Jeonbuk Natl Univ, Dept Energy Storage Convers Engn, Div Adv Mat Engn, Jeonju 54896, Jeonbuk, South Korea; Korea Inst Mat Sci KIMS, Funct Ceram Dept, Chang Won 51508, Gyeongnam, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Jeonbuk Natl Univ, Hydrogen & Fuel Cell Res Ctr, Jeonju 54896, Jeonbuk, South Korea | Jeong, Chang Kyu/ADT-8127-2022; Park, Kwiil/LKN-9445-2024; Kim, Hyungduk/CAH-5630-2022 | 57216301848; 57216296571; 36704574900; 35280874200; 55961876600 | kipark@knu.ac.kr;ckyu@jbnu.ac.kr; | JOURNAL OF THE KOREAN CERAMIC SOCIETY | J KOREAN CERAM SOC | 1229-7801 | 2234-0491 | 57 | 4 | SCIE | MATERIALS SCIENCE, CERAMICS | 2020 | 1.674 | 53.5 | 1.11 | 2025-06-25 | 20 | 21 | Lead-free; Nanocube; Piezoelectric; Energy harvesting; Flexible device | MORPHOTROPIC PHASE-BOUNDARY; DIELECTRIC-PROPERTIES; COMPOSITES; NANOPARTICLES; NANOWIRES | Energy harvesting; Flexible device; Lead-free; Nanocube; Piezoelectric | Biocompatibility; Energy harvesting; Fracture mechanics; Microchannels; Nanocomposites; Nanocrystalline materials; Perovskite; Piezoelectric ceramics; Piezoelectric materials; Piezoelectricity; Polydimethylsiloxane; Silicones; Solid state reactions; High-temperature processing; Lead-free piezoelectrics; Nanocomposite devices; Piezoceramic materials; Piezoelectric composite; Polydimethylsiloxane PDMS; Solid state reaction method; Stoichiometric compositions; Nanocomposite films | English | 2020 | 2020-07 | 10.1007/s43207-020-00038-9 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Effects of pH and reaction temperature on hydroxyapatite powders synthesized by precipitation | Hydroxyapatite (HA) was synthesized through the precipitation method and different processing parameters (Ca/P molar ratio, pH, and reaction temperature) were varied to investigate their influence on the HA formation. No HA powder was obtained at pH 10 and 25 degrees C, even when using a Ca/P ratio as high as 2.2. However, HA powders were successfully produced at pH above 11, 25 degrees C, and Ca/P ratio of 2.2. At pH 10 and 25 degrees C, the concentration of the H+ ions in the reaction solution increased and so did the Ca loss, resulting Ca-deficient hydroxyapatite (CdHA) formation. While HA was formed instead due to a lower Ca loss when the pH was increased to 11 and 11.3. As the reaction temperature was increased to 70 and 90 degrees C, the HA formation occurred regardless of the pH because of the decreased solubility of HA in the solution. | Lee, In-Ho; Lee, Jung-A; Lee, Joon-Hyung; Heo, Young-Woo; Kim, Jeong-Joo | Kyungpook Natl Univ, Grad Sch Ind, Dept Engn Technol, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea | ; Lee, Jung/AAP-7829-2021; Kim, Jihyun/F-6940-2013; Lee, In-Ho/C-6235-2011 | 57216248597; 55108410500; 57204923460; 7004298542; 8214705700 | jjkim@knu.ac.kr; | JOURNAL OF THE KOREAN CERAMIC SOCIETY | J KOREAN CERAM SOC | 1229-7801 | 2234-0491 | 57 | 1 | SCIE | MATERIALS SCIENCE, CERAMICS | 2020 | 1.674 | 53.5 | 1.24 | 2025-06-25 | 29 | 31 | Hydroxyapatite; Precipitation; pH; Temperature; Shape | BETA-TRICALCIUM PHOSPHATE; AMORPHOUS CALCIUM-PHOSPHATE; THERMAL-STABILITY; MORPHOLOGY; NANOPARTICLES; CALCINATION; RATIO; TRANSFORMATION; CRYSTALLINITY; BIOCERAMICS | Hydroxyapatite; pH; Precipitation; Shape; Temperature | Molar ratio; pH; Powders; Precipitation (chemical); Temperature; Ca-deficient hydroxyapatites; Ca/P ratio; Hydroxyapatite powder; Precipitation methods; Processing parameters; Reaction solutions; Reaction temperature; Shape; Hydroxyapatite | English | 2020 | 2020-01 | 10.1007/s43207-019-00004-0 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Oxygen nonstoichiometry and electrical properties of La2-xSrxNiO4+δ (0 ≤ x ≤ 0.5) | The amount of interstitial oxygen (delta) in Sr-doped lanthanum nickel oxide (La2-xSrxNiO4+delta) as a function of Sr content has been investigated by the thermogravimetry analysis (TGA) and X-ray photoelectron spectroscopy (XPS). La2-xSrxNiO4+delta (0 <= x <= 0.5) ceramics were prepared by the general solid-state reaction process and sintered in different ambient of argon, air or oxygen, respectively. An increase in the amount of Sr decreased delta in La2-xSrxNiO4+delta, while the Ni2+/Ni3+ ratio analyzed by Ni3p XPS decreased indicating that the oxidation state of Ni increased. Particularly when the sample was sintered in a low oxygen partial pressure condition such as in Ar ambient, the hole concentration strongly depended on the Sr content, suggesting that the hole generation seems mostly originated from Sr2+ substitution into the La3+ site. | Hop, Dang-Hoang; Chung, Roy Byung Kyu; Heo, Young-Woo; Kim, Jeong-Joo; Lee, Joon-Hyung | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Minist Sci & Technol Vietnam, 113 Tran Duy Hung St, Hanoi, Vietnam | Kim, Jihyun/F-6940-2013; Lee, Yun-Soo/AAA-7364-2022 | 56747857300; 16642183100; 7004298542; 8214705700; 57204923460 | joonlee@knu.ac.kr; | JOURNAL OF THE KOREAN CERAMIC SOCIETY | J KOREAN CERAM SOC | 1229-7801 | 2234-0491 | 57 | 4 | SCIE | MATERIALS SCIENCE, CERAMICS | 2020 | 1.674 | 53.5 | 0.56 | 2025-06-25 | 9 | 10 | Electrical properties; Sintering; Oxygen nonstoichiometry; p-type; Hole concentration | DIRECT DECOMPOSITION; CRYSTAL-CHEMISTRY; OXIDES; SR; CONDUCTIVITY; EVOLUTION; TRANSPORT; CATALYSTS; SURFACE | Electrical properties; Hole concentration; Oxygen nonstoichiometry; p-type; Sintering | Hole concentration; Lanthanum compounds; Nickel oxide; Oxygen; Sintering; Solid state reactions; Thermogravimetric analysis; X ray photoelectron spectroscopy; Hole generation; Interstitial oxygen; Lanthanum nickel oxides; Low oxygen partial pressure; Oxidation state; Oxygen non-stoichiometry; Solid-state reaction process; Thermogravimetry analysis; Strontium compounds | English | 2020 | 2020-07 | 10.1007/s43207-020-00049-6 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Extracellular pH modulation of excitatory synaptic transmission in hippocampal CA3 neurons | In this study, the effect of extracellular pH on glutamatergic synaptic transmission was examined in mechanically dissociated rat hippocampal CA3 pyramidal neurons using a whole-cell patch-clamp technique under voltage-clamp conditions. Native synaptic boutons were isolated with-out using any enzymes, using a so-called "synapse bouton preparation," and preserved for the electrical stimulation of single boutons. Both the frequency and amplitude of spontaneous excitatory postsyn-aptic currents (sEPSCs) were found to decrease and increase in response to modest acidic (similar to pH 6.5) and basic (similar to pH 8.5) solutions, respectively. These changes in sEPSC frequency were not affected by the addition of TTX but completely disappeared by successive addi-tion of Cd2+. However, changes in sEPSC amplitude induced by acidic and basic extracellular solutions were not affected by the addition of neither TTX nor Cd2+. The glutamate-induced whole-cell currents were decreased and increased by acidic and basic solutions, respectively. Acidic pH also decreased the amplitude and increased the failure rate (Rf) and paired-pulse rate (PPR) of glutamatergic electrically evoked excitatory postsynaptic currents (eEPSCs), while a basic pH increased the amplitude and decreased both the Rf and PPR of eEPSCs. The kinetics of the currents were not affected by changes in pH. Acidic and basic solutions decreased and increased voltage-gated Ca2+ but not Na+ channel currents in the dentate gyrus granule cell bodies. Our results indicate that extracellular pH modulates excitatory transmission via both pre-and postsynaptic sites, with the presynaptic modulation correlated to changes in voltage-gated Ca2+ channel currents. NEW & NOTEWORTHY The effects of external pH changes on spontaneous, miniature, and evoked excitatory synaptic transmission in CA3 hippocampal synapses were examined using the isolated nerve bouton preparation, which allowed for the accurate regulation of extracellular pH at the synapses. Acidification generally reduced transmission, partly via effects on presynaptic Ca2+ channel currents, while alkalization generally enhanced transmission. Both pre-and postsynaptic sites contributed to these effects. | Jang, Il-Sung; Nakamura, Michiko; Kubota, Hisahiko; Noda, Mami; Akaike, Norio | Kyungpook Natl Univ, Sch Dent, Dept Pharmacol, Daegu, South Korea; Saga Univ, Fac Med, Dept Pharmacol, Saga, Japan; Kyushu Univ, Grad Sch Pharmaceut Sci, Lab Pathophysiol, Fukuoka, Japan; Kumamoto Kinoh Hosp, Juryo Grp, Res Div Clin Pharmacol, Med Corp, Kumamoto, Japan; Kitamoto Hosp, Res Div Neurophysiol, Saitama, Japan | Noda, Mami/AAC-3949-2020 | 7102177910; 36051866000; 7403029230; 7402801567; 57194502749 | akaike.sachin715@juryo.or.jp; | JOURNAL OF NEUROPHYSIOLOGY | J NEUROPHYSIOL | 0022-3077 | 1522-1598 | 123 | 6 | SCIE | NEUROSCIENCES;PHYSIOLOGY | 2020 | 2.714 | 53.7 | 0.15 | 2025-06-25 | 5 | 6 | CA3 neuron; eEPSC; excitatory synaptic transmission; hippocampus; mEPSC; pH; sEPSC | INTRACELLULAR PH; EXOCYTOSED PROTONS; GLYCINE RELEASE; CA2+ CURRENTS; NA+ CHANNELS; RAT; INHIBITION; RECEPTORS; ACIDOSIS; BRAIN | CA3 neuron; eEPSC; Excitatory synaptic transmission; Hippocampus; mEPSC; pH; sEPSC | Animals; CA3 Region, Hippocampal; Excitatory Postsynaptic Potentials; Female; Glutamic Acid; Hydrogen-Ion Concentration; Male; Patch-Clamp Techniques; Presynaptic Terminals; Pyramidal Cells; Rats; Rats, Wistar; cadmium; glutamic acid; voltage gated calcium channel; glutamic acid; acidity; alkalinity; animal cell; animal tissue; Article; calcium current; cell composition; cell level; controlled study; correlation coefficient; current amplitude; decay time constant; dentate gyrus granular layer; electric current; electrophysiology parameters; electrostimulation; excitatory postsynaptic potential; extracellular calcium; extracellular ph; failure rate; glutamatergic synapse; hippocampal CA3 region; nerve cell excitability; neuromodulation; nonhuman; paired pulse rate; pH; presynaptic potential; priority journal; pyramidal nerve cell; rat; synaptic transmission; voltage clamp technique; whole cell patch clamp; animal; chemistry; excitatory postsynaptic potential; female; hippocampal CA3 region; male; metabolism; nerve ending; patch clamp technique; physiology; pyramidal nerve cell; Wistar rat | English | 2020 | 2020-06 | 10.1152/jn.00013.2020 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Clinical and psychosocial factors associated with depression in patients with psychosis according to stage of illness | Aim This study investigated the clinical characteristics and psychosocial factors associated with depression in patients with early psychosis according to stage of illness. Methods The present study includes patients who fulfil the DSM-5 criteria for schizophrenia spectrum and other psychotic disorders. Patients were divided into two groups according to illness stage (the acute stage of first-episode psychosis and stabilization phase of recent-onset psychosis). Clinically meaningful depression was defined as moderate or severe on the depression dimension of the Clinician-Rated Dimensions of Psychosis Symptom Severity scale in the DSM-5. Results In total, 340 (207 first-episode and 133 recent-onset) patients were recruited in this study. Patients with comorbid depression were characterized by frequent suicidal ideation, a past suicide attempt, and lower scores on the Subjective Well-being Under Neuroleptics and Brief Resilience Scale in both groups. Long duration of untreated psychosis and higher scores on the Early Trauma Inventory Self Report were associated with depression in the acute stage of first-episode psychosis. In the stabilization phase of recent-onset psychosis group, a monthly income and scores for sexual desire and on the Family Adaptability and Cohesion Evaluation Scale-III were significantly lower in patients with depression than in those without depression. Conclusion Comorbid depression was associated with high suicidality, lower quality of life and poor resilience in patients with first-episode and recent-onset psychosis. Depression was associated with factors that had been present before the initiation of treatment in patients with first-episode psychosis and with environmental factors in those in the stabilization phase. | Kim, Sung-Wan; Kim, Jung Jin; Lee, Bong Ju; Yu, Je-Chun; Lee, Kyu Young; Won, Seung-Hee; Lee, Seung-Hwan; Kim, Seung-Hyun; Kang, Shi-Hyun; Kim, Euitae; Lee, Ju-Yeon; Kim, Jae-Min; Chung, Young Chul | Chonnam Natl Univ, Med Sch, Dept Psychiat, Gwangju, South Korea; Catholic Univ Korea, Seoul St Marys Hosp, Dept Psychiat, Seoul, South Korea; Inje Univ, Coll Med, Dept Psychiat, Haeundae Paik Hosp, Busan, South Korea; Eulji Univ, Sch Med, Dept Psychiat, Eulji Univ Hosp, Daejeon, South Korea; Eulji Univ, Sch Med, Dept Psychiat, Eulji Gen Hosp, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Psychiat, Daegu, South Korea; Inje Univ, Coll Med, Dept Psychiat, Goyang, South Korea; Korea Univ, Coll Med, Dept Psychiat, Guro Hosp, Seoul, South Korea; Seoul Natl Hosp, Dept Psychiat, Seoul, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Neuropsychiat, Gyeonggi Do, South Korea; Chonbuk Natl Univ, Med Sch, Dept Psychiat, Keumam Dong 634-18, Jeonju 561712, South Korea | ; Chung, Young/AAB-8242-2022; Lee, Yoon/ABA-8808-2020; Kim, Jungjin/MTF-3196-2025; KIM, Jae-Min/S-7637-2019; Lee, Jungmin/KHT-2438-2024 | 47962371200; 36079817200; 55586756200; 56022915400; 24376890800; 35278955600; 56739411100; 57196226681; 36523091800; 55756823600; 57203144588; 14007693400; 55712695800 | chungyc@jbnu.ac.kr; | EARLY INTERVENTION IN PSYCHIATRY | EARLY INTERV PSYCHIA | 1751-7885 | 1751-7893 | 14 | 1 | SCIE;SSCI | PSYCHIATRY | 2020 | 2.732 | 53.8 | 1.16 | 2025-06-25 | 14 | 14 | cohort; depression; first-episode psychosis; schizophrenia; suicide | QUALITY-OF-LIFE; 1ST EPISODE; 1ST-EPISODE PSYCHOSIS; SUICIDAL-BEHAVIOR; SELF-ESTEEM; UNTREATED PSYCHOSIS; CHILDHOOD TRAUMA; SCHIZOPHRENIA; RESILIENCE; SYMPTOMS | cohort; depression; first-episode psychosis; schizophrenia; suicide | Adult; Comorbidity; Depressive Disorder; Diagnostic and Statistical Manual of Mental Disorders; Female; Humans; Male; Psychotic Disorders; Quality of Life; Schizophrenia; Schizophrenic Psychology; Suicidal Ideation; Suicide, Attempted; Young Adult; adult; Article; body mass; Brief Resilience Scale; clinical feature; clinical outcome; cohort analysis; comorbidity; depression; disease association; disease classification; disease duration; DSM-5; environmental factor; female; human; length of stay; major clinical study; male; Positive and Negative Syndrome Scale; priority journal; psychological resilience; psychosis; quality of life; Social and Occupational Functioning Assessment Scale; social psychology; staging; suicidal ideation; suicide attempt; classification; depression; Diagnostic and Statistical Manual of Mental Disorders; psychology; psychosis; schizophrenia; young adult | English | 2020 | 2020-02 | 10.1111/eip.12806 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Effectiveness of repeated influenza vaccination among the elderly population with high annual vaccine uptake rates during the three consecutive A/H3N2 epidemics | Background: Annually, about 80% of the Korean elderly aged >= 65 years receive influenza vaccination. Repeated annual vaccination has been suggested as an important factor of poor influenza vaccine effectiveness (VE), though reported conflicting results. Methods: During the consecutive A/H3N2-dominant influenza seasons between 2012 and 2015, we comparatively evaluated the VE (repeated vs. current season only) against laboratory-confirmed influenza, pneumonia and hospitalization in the elderly aged >= 65 years with influenza-like illness (ILI). Clinical and demographic data were collected prospectively, and vaccination status of prior and current seasons was verified using the immunization registry data of Korean Centers for Disease Control and Prevention. Results: During the first A/H3N2-dominant season in 2012-2013, influenza vaccine showed statistically significant effectiveness against influenza A infection only and when vaccinated in the current season only (VE 53%, 95% CI 15-77). In the latter two seasons (2013-2015 years), the adjusted VE for influenza A was indistinguishable between repeated vaccination and vaccination in the current season only. Conclusion: During consecutive influenza A/H3N2 epidemics, poor influenza vaccine effectiveness may be more pronounced among the elderly population with a high annual vaccine uptake rate. (C) 2019 Published by Elsevier Ltd. | Song, Joon Young; Noh, Ji Yun; Lee, Jin Soo; Wie, Seong-Heon; Kim, Young Keun; Lee, Jacob; Jeong, Hye Won; Kim, Shin Woo; Lee, Sun Hee; Park, Kyung-Hwa; Choi, Won Suk; Cheong, Hee Jin; Kim, Woo Joo | Korea Univ, Dept Internal Med, Div Infect Dis, Coll Med, Seoul, South Korea; APII, Seoul, South Korea; Inha Univ, Dept Internal Med, Div Infect Dis, Sch Med, Incheon, South Korea; Catholic Univ, St Vincents Hosp, Dept Internal Med, Div Infect Dis,Med Coll, Suwon, South Korea; Yonsei Univ, Wonju Coll Med, Dept Internal Med, Div Infect Dis, Wonju, South Korea; Hallym Univ, Dept Internal Med, Div Infect Dis, Coll Med, Chunchon, South Korea; Chungbuk Natl Univ, Div Infect Dis, Coll Med, Cheongju, South Korea; Kyungpook Natl Univ, Dept Internal Med, Div Infect Dis, Sch Med, Daegu, South Korea; Pusan Natl Univ, Dept Internal Med, Div Infect Dis, Sch Med, Pusan, South Korea; Chonnam Natl Univ, Dept Internal Med, Div Infect Dis, Med Sch, Gwangju, South Korea | Jeong, Hye/AET-1982-2022; LEE, SUN HEE/AAB-5714-2022; Choi, Won Suk/V-2730-2017; Kim, Ik-Sang/J-5425-2012; Kim, Young/H-4235-2013; Kim, Hyunho/GQH-5608-2022; Choi, Won/V-2730-2017; Lee, Jae/AAD-3704-2019; Kim, Woo/D-2733-2015 | 57214400146; 24587375200; 56162297100; 12796392700; 35322538300; 13406664300; 13103042700; 8710731500; 56498686800; 57219637574; 56718971800; 7102495865; 27171770800 | wjkim@korea.ac.kr; | VACCINE | VACCINE | 0264-410X | 1873-2518 | 38 | 2 | SCIE | IMMUNOLOGY;MEDICINE, RESEARCH & EXPERIMENTAL | 2020 | 3.641 | 53.9 | 0.67 | 2025-06-25 | 9 | 10 | Influenza; Vaccination; Effectiveness; Antigenic determinants; Pneumonia; Hospitalization | IMMUNIZATION; IMPACT; VIRUS; PROTECTION; PNEUMONIA; A(H3N2) | Antigenic determinants; Effectiveness; Hospitalization; Influenza; Pneumonia; Vaccination | Aged; Aged, 80 and over; Female; Hospitalization; Humans; Influenza A Virus, H3N2 Subtype; Influenza Vaccines; Influenza, Human; Male; Registries; Republic of Korea; Seasons; Vaccination; influenza vaccine; influenza vaccine; aged; Article; clinical effectiveness; comparative study; controlled study; demography; dosage schedule comparison; female; flu like syndrome; geriatric patient; government; hospitalization; human; immunization; influenza A; influenza A (H3N2); Influenza A virus (H3N2); influenza B; influenza vaccination; laboratory test; major clinical study; male; medical information; pneumonia; priority journal; prospective study; register; season; seasonal influenza; South Korea; immunology; influenza; isolation and purification; vaccination; very elderly; virology | English | 2020 | 2020-01-10 | 10.1016/j.vaccine.2019.10.012 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Enoxaparin related spontaneous fatal retroperitoneal hemorrhage in a patient with atrial fibrillation | Spontaneous retroperitoneal hemorrhage (SRH) is a potentially lethal complication of anticoagulation therapy. The signs and symptoms vary from clinical silence to abdominal pain or hemorrhagic shock. The diagnosis of SRH may be difficult, especially in its early clinical course, due to its varied symptoms. Physicians need to have a high degree of suspicion for its early diagnosis. Delayed diagnosis of SRH can lead to serious complications or death. Bleeding complications in anticoagulated patients are well known; however, reports about SRH with fatal outcomes are sporadic. Here, we describe a case of massive SRH in a patient receiving enoxaparin. In our case, the patient died due to delayed diagnosis and treatment. We, therefore, emphasize that physicians should always consider SRH in any patient receiving anticoagulants who presents with abdominal pain. | Oh, Tak-Hyuk; Jung, Hanna; Lee, Youngok | Kyungpook Natl Univ, Sch Med, Kyungpook Natl Univ Hosp, Dept Thorac & Cardiovasc Surg, Daegu 41944, South Korea | Jung, Hanna/Y-4165-2019 | 56467700700; 56467570700; 36461117600 | yolee1210@knu.ac.kr; | REVIEWS IN CARDIOVASCULAR MEDICINE | REV CARDIOVASC MED | 1530-6550 | 2153-8174 | 21 | 3 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS | 2020 | 2.93 | 53.9 | 0 | 2025-06-25 | 0 | 0 | Anticoagulant agents; enoxaparin; hemorrhage; perioperative period; retroperitoneal space | HEMATOMA | Anticoagulant agents; Enoxaparin; Hemorrhage; Perioperative period retroperitoneal space | Aged; Anticoagulants; Atrial Fibrillation; Drug Substitution; Enoxaparin; Fatal Outcome; Female; Heart Valve Prosthesis Implantation; Hemorrhage; Humans; Preoperative Care; Retroperitoneal Space; Treatment Outcome; creatinine; digoxin; diuretic agent; enoxaparin; hemoglobin; rivaroxaban; thyroid hormone; anticoagulant agent; enoxaparin; abdominal radiography; aged; Article; artificial embolization; atrial fibrillation; cardiomegaly; cardiothoracic ratio; case report; CHA2DS2-VASc score; clinical article; cold sweat; computer assisted tomography; creatinine clearance; drug substitution; drug withdrawal; dyspnea; female; heart left ventricle ejection fraction; heart right ventricle; hematocrit; hemodynamics; hormone substitution; hospital admission; human; hypotension; hypothyroidism; hypovolemic shock; inferior epigastric artery; internal iliac artery; iron deficiency anemia; laboratory test; leukocyte count; lower abdominal pain; medical history; mitral valve regurgitation; mitral valve replacement; pelvis angiography; physical examination; platelet count; prescription; psoas muscle; resuscitation; retroperitoneal hematoma; retroperitoneal hemorrhage; rheumatic heart disease; spontaneous retroperitoneal hemorrhage; systolic blood pressure; tachycardia; thorax radiography; transthoracic echocardiography; tricuspid valve regurgitation; unconsciousness; adverse event; atrial fibrillation; bleeding; fatality; heart valve replacement; preoperative care; retroperitoneum; treatment outcome | English | 2020 | 2020-09-30 | 10.31083/j.rcm.2020.03.153 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Fecal calprotectin as a marker of gastrointestinal involvement in pediatric Henoch-Schonlein purpura patients: a retrospective analysis | Background Henoch-Schonlein purpura is a type of systemic vasculitis found in children. Its prognosis is usually good; however, recurrence is relatively common. If the intestines are affected, severe complications could arise. Here, we investigated the value of fecal calprotectin in the early screening of Henoch-Schonlein purpura and as a useful factor for predicting gastrointestinal manifestations. Methods We retrospectively reviewed the medical records of pediatric patients who were diagnosed with Henoch-Schonlein purpura and underwent fecal calprotectin testing during the acute phase. The patients were categorized into gastrointestinal involvement and non-gastrointestinal involvement groups based on their clinical symptoms. Moreover, gastrointestinal involvement was categorized as follows: upper gastrointestinal tract involvement (up to the duodenum) and lower gastrointestinal tract involvement (from the terminal ileum). Results A total of 69 patients were diagnosed with Henoch-Schonlein purpura and underwent fecal calprotectin testing. Among them, 40 patients (58.0%) showed signs of gastrointestinal involvement. The gastrointestinal involvement group had higher fecal calprotectin levels (379.9 +/- 399.8 vs. 77.4 +/- 97.6 mg/kg,P = 0.000). There were no significant differences in the recurrence of Henoch-Schonlein purpura symptoms or gastrointestinal symptoms. The cut-off value to identify gastrointestinal involvement was 69.10 mg/kg (P 50 mg/kg showed more frequent gastrointestinal involvement (77.8% vs. 20.8%,P = 0.000) and more severe gastrointestinal symptoms. Significant differences in abdominal pain duration, Henoch-Schonlein purpura clinical score, and abdominal pain severity were observed (P = 0.002,P = 0.000, andP = 0.000, respectively). Additionally, fecal calprotectin levels were significantly higher in patients with lower gastrointestinal tract involvement (214.67 +/- 150.5 vs. 581.8 +/- 510.1 mg/kg,P = 0.008), and the cut-off value was 277.5 mg/kg (P < 0.01). Conclusion Fecal calprotectin testing is useful for identifying gastrointestinal involvement in pediatric Henoch-Schonlein purpura patients. | Paek, Eun Young; Yi, Dae Yong; Kang, Ben; Choe, Byung-Ho | Chung Ang Univ Hosp, Dept Pediat, 102 Heukseok Ro, Seoul 06973, South Korea; Chung Ang Univ, Coll Med, Seoul, South Korea; Kyungpook Natl Univ, Sch Med, Dept Pediat, Daegu, South Korea | Choe, Byung-Ho/KSM-6251-2024; Yi, Dae/G-1729-2014; 康, 奔/JMQ-0812-2023 | 57218475697; 57190851975; 57194823199; 57574977300 | meltemp2@hanmail.net; | BMC PEDIATRICS | BMC PEDIATR | 1471-2431 | 20 | 1 | SCIE | PEDIATRICS | 2020 | 2.125 | 53.9 | 0.86 | 2025-06-25 | 9 | 10 | Gastrointestinal tract; Child; Calprotectin; Henoch-Schonlein purpura | CHILDREN; INFLAMMATION; DISEASE | Calprotectin; Child; Gastrointestinal tract; Henoch-Schönlein purpura | Child; Feces; Gastrointestinal Diseases; Humans; Leukocyte L1 Antigen Complex; Purpura, Schoenlein-Henoch; Retrospective Studies; C reactive protein; calgranulin; calgranulin; abdominal pain; age distribution; anaphylactoid purpura; Article; child; clinical feature; comorbidity; disease course; disease duration; disease severity; erythrocyte sedimentation rate; feces analysis; feces level; female; gastrointestinal disease; human; human cell; length of stay; leukocyte count; major clinical study; male; neutrophil count; pediatric patient; recurrence risk; retrospective study; sensitivity and specificity; sex difference; university hospital; anaphylactoid purpura; complication; feces; gastrointestinal disease | English | 2020 | 2020-08-08 | 10.1186/s12887-020-02263-x | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | High performance of solution-processed SnO2 thin-film transistors by promotion of photo-exposure time-dependent carrier transport during the pre-annealing stage | We fabricate high-performance solution-processed SnO2 thin-film transistors (TFTs) exhibiting improved carrier transport features by exposing the ultraviolet/ozone (UV/O-3) on the SnO2 film during the pre-annealing stage. The SnO2 layer is treated with different UV/O-3-exposure times from 0 to 60 minutes before the post-annealing step. As UV/O-3-exposure time increases from 0 to 30 minutes, the M-O-M (M, metal; and O, oxygen) network, mass density, and oxygen vacancies of films are enhanced. In contrast, the M-O-M network and mass density decrease, while the oxygen vacancies rather increase when the UV/O-3-exposure time reaches 60 minutes beyond 30 minutes. The SnO2 (Sn4+) phase, thickness, and surface morphology of SnO2 films are not considerably changed regardless of UV/O-3-exposure time. When the UV/O-3-exposure time is 30 minutes, devices demonstrate superior field-effect mobility (10.1 cm(2) V-1 s(-1)) at approximately two times higher than the TFT without UV/O-3-exposure. Furthermore, the SnO2 TFT with UV/O-3-exposure time for 30 minutes shows improved subthreshold-swing characteristics and a high on/off current ratio. These devices are adequate for use in high-resolution active-matrix LCDs or OLED displays that demand a high field-effect mobility (>10 cm(2) V-1 s(-1)) and on/off ratio (>10(6)). | Park, Jun-Ik; Kim, Do-Kyung; Lee, Hyunjae; Jang, Jaewon; Park, Jihwan; Kim, Hyeok; Lang, Philippe; Kang, In Man; Bae, Jin-Hyuk | Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Univ Seoul, Dept Elect & Comp Engn, 163 Seoulsiripdaero, Seoul 02504, South Korea; Univ Paris Diderot Paris7, ITODYS, CNRS UMR 7086, 15 Rue Jean Antoine Baif, F-75205 Paris 13, France | lang, philippe/E-5192-2012 | 57210189987; 57984042900; 26638774100; 57194107504; 59880525700; 57191718658; 36181262200; 7203062678; 35326180700 | jhbae@ee.knu.ac.kr; | SEMICONDUCTOR SCIENCE AND TECHNOLOGY | SEMICOND SCI TECH | 0268-1242 | 1361-6641 | 35 | 6 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, CONDENSED MATTER | 2020 | 2.352 | 54.0 | 0.47 | 2025-06-25 | 7 | 7 | SnO2; photo-exposure time; solution-process; thin-film transistor; high-performance | OXIDE SEMICONDUCTORS; STABILITY; AMBIENT | high-performance; photo-exposure time; SnO<sub>2</sub>; solution-process; thin-film transistor | Annealing; Liquid crystal displays; Morphology; Oxygen vacancies; Surface morphology; Thin film circuits; Thin films; Active matrix LCD; Field-effect mobilities; High field effect mobility; High resolution; ON/OFF current ratio; SnO2 thin films; Solution-processed; Subthreshold swing; Thin film transistors | English | 2020 | 2020-06 | 10.1088/1361-6641/ab8537 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Improved negative bias stability of sol-gel processed Ti-doped SnO2thin-film transistors | Sol-gel-processed Ti-doped SnO(2)thin-film transistors (TFTs) were successfully fabricated for the first time, and the effects of the concentration of the Ti dopant on their structural, chemical, and optical properties were investigated. The introduced Ti dopant showed potential as a promising oxygen vacancy suppressor. Additionally, the results showed that the 0.1 wt% Ti-doped SnO2TFT had a field-effect mobility of 10.21 cm(2)V(-1)s(-1), a subthreshold swing of 0.87, and anI(on)/I(off)value of similar to 1 x 10(8), as well as good negative bias stress characteristics. The success of the Ti doping could be attributed to its small ionic size, high Lewis acid strength, and strong bonding strength. Therefore, the introduced sol-gel-processed Ti-doped SnO2TFTs stand as promising candidates with potential for application in transparent displays as well as larger area electronics applications. | Lee, Won-Yong; Lee, Hyunjae; Ha, Seunghyun; Lee, Changmin; Bae, Jin-Hyuk; Kang, In-Man; Jang, Jaewon | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 57209527128; 26638774100; 57209074248; 57191709616; 35326180700; 7203062678; 57194107504 | j1jang@knu.ac.kr; | SEMICONDUCTOR SCIENCE AND TECHNOLOGY | SEMICOND SCI TECH | 0268-1242 | 1361-6641 | 35 | 11 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, CONDENSED MATTER | 2020 | 2.352 | 54.0 | 0.95 | 2025-06-25 | 12 | 14 | SnO2; Ti doping; high performance; thin-film transistor; negative bias stress | THIN-FILM TRANSISTORS; ELECTRICAL PERFORMANCE; OXIDE | high performance; negative bias stress; SnO<sub>2</sub>; thin-film transistor; Ti doping | Chemical bonds; Ionic strength; Optical properties; Semiconductor doping; Sol-gel process; Thin film transistors; Titanium; Bonding strength; Electronics applications; Field-effect mobilities; Ionic sizes; Negative bias; SnO2 thin films; Subthreshold swing; Transparent displays; Titanium compounds | English | 2020 | 2020-11 | 10.1088/1361-6641/abb9fe | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Multilocus genotyping of Giardia duodenalis from pigs in Korea | Giardia duodenalis (syn. G. intestinalis, G. lamblia) is an important zoonotic parasite infecting livestock (including pigs) through ingesting cysts in contaminated food or water. This parasite has been classified into eight different genetic assemblages, A to H. Here, we examined the individual-level prevalence of G. duodenalis in domestic pig farms and confirmed host specificity by genotype comparisons. Samples were collected from southern and central Korea, between May 2017 and January 2019. DNA directly extracted from 745 pig fecal specimens were tested by PCR for G. duodenalis small subunit ribosomal RNA (ssu rRNA), glutamate dehydrogenase (gdh), and beta-giardin gene sequences. Based on ssu rRNA PCR, 110 (14.8%) were positive for G. duodenalis. Infection risk was the highest in the fattener group (31/139, 22.3%) and during the autumn season (52/245, 21.2%: p < .001). No statistically significant differences in risk for infection were observed between fecal types (normal versus diarrheal). Fifty ssu rRNA samples, three gdh samples, and five beta-giardin samples were successfully sequenced and genotyped. Ssu rRNA assemblage sequence analysis identified E (40.0%, 20/50), D (34.0%, 17/50), C (24.0%, 12/50), and A (2.0%, 1/50). The gdh locus identified three samples as assemblage E, and the beta-giardin locus identified four samples as assemblage E and one as assemblage C. Assemblage A sequences obtained (ssu rRNA; MK430919) had 100% identity with Giardia sequences isolated from a Korean individual (AJ293301), indicating the potential of zoonotic transmission. Continuous management and monitoring for prevention of transmission and protection of animal and human health are essential. | Lee, Haeseung; Jung, ByeongYeal; Lim, Jun-Sik; Seo, Min-Goo; Lee, Seung-Hun; Choi, Kwang-Ho; Hwang, Mi-Hye; Kim, Tae-Hwan; Kwon, Oh-Deog; Kwak, Dongmi | Kyungpook Natl Univ, Coll Vet Med, 80 Daehakro, Daegu 41566, South Korea; Anim & Plant Quarantine Agcy, Gimcheon 39660, South Korea; Kangwon Natl Univ, Coll Vet Med, Chunchon 24341, South Korea; Kangwon Natl Univ, Inst Vet Sci, Chunchon 24341, South Korea; Chungbuk Natl Univ, Coll Vet Med, Cheongju 28644, South Korea; Kyungpook Natl Univ, Cardiovasc Res Inst, Daegu 41566, South Korea | Seo, Min-Goo/NQF-4335-2025; Lim, Jun-Sik/AAL-8501-2021 | 57202497862; 8833815700; 57198889239; 53982155300; 57203394416; 57217207191; 57200118370; 57202984578; 7402195886; 7007148758 | dmkwak@knu.ac.kr; | PARASITOLOGY INTERNATIONAL | PARASITOL INT | 1383-5769 | 1873-0329 | 78 | SCIE | PARASITOLOGY | 2020 | 2.23 | 54.0 | 0.96 | 2025-06-25 | 15 | 15 | Small subunit ribosomal RNA; Assemblage frequency; beta-Giardin; Gdh; Prevalence; Zoonotic potential | PARASITIC INFECTIONS; DO PROVINCE; STRAY DOGS; CRYPTOSPORIDIUM; PREVALENCE; CALVES; IDENTIFICATION; SAMPLES; CYSTS | Assemblage frequency; Gdh; Prevalence; Small subunit ribosomal RNA; Zoonotic potential; β-Giardin | Animals; Female; Genotype; Giardia lamblia; Giardiasis; Multilocus Sequence Typing; Polymerase Chain Reaction; Prevalence; Republic of Korea; Sus scrofa; Swine; Swine Diseases; glutamate dehydrogenase; protozoal DNA; protozoal RNA; small subunit ribosomal RNA; Article; autumn; diarrhea; domestic pig; electrophoresis; gene sequence; genotype; Giardia intestinalis; giardiasis; infection risk; nonhuman; nucleotide sequence; nucleotide sequence; parasite transmission; phylogeny; polymerase chain reaction; priority journal; South Korea; summer; winter; animal; classification; female; genetics; Giardia intestinalis; giardiasis; isolation and purification; multilocus sequence typing; parasitology; pig; prevalence; swine disease; veterinary medicine | English | 2020 | 2020-10 | 10.1016/j.parint.2020.102154 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Analytic Pade-like approximations of exp(-sqrt(s)) for simulations of diffusion processes in the semi-infinite geometry | Detailed transient behaviors of mass and heat transfer processes are required to solve partial differential equations. When those partial differential equations are coupled, they are still difficult to solve in time domain. For linear mass and heat transfer processes, their Laplace-domain solutions are obtainable and, when they are approximated by rational polynomials in the Laplace variable s, the problems can be transformed to a set of ordinary differential equations solved easily in time domain for various initial conditions. In this approximation, the conventional Pade method based on the Tayler series expansion of the Laplace-domain solutions has been well developed and effective. However, for some mass and heat transfer processes in the semi-infinite geometry, the Pade approximation is not applicable because the Laplace-domain solutions involving exp(-sqrt(s)) are not analytic at s = 0. Here, for such processes, analytical methods to approximate exp(-sqrt(s)) by rational polynomials are proposed. First it is expanded in series in terms of cosh(-1)(2(k)sqrt(s)) which converges fast. This series, when truncated, is analytic at s = 0 and its Pade approximations are available. The proposed method enables partial differential equations be replaced to a set of ordinary differential equations, reducing computations considerably for coupled partial differential equations. Performances of the proposed method are illustrated with several realistic mass and heat transfer processes. | Lee, Jietae; Kim, Dong Hyun | Kyungpook Natl Univ, Dept Chem Engn, Taegu 702701, South Korea | Kim, Dong Hyun/LDT-2672-2024; Lee, Si/ABH-1408-2020 | 7601455194; 55574226279 | jtlee@knu.ac.kr; | CHEMICAL ENGINEERING COMMUNICATIONS | CHEM ENG COMMUN | 0098-6445 | 1563-5201 | 207 | 2 | SCIE | ENGINEERING, CHEMICAL | 2020 | 2.494 | 54.2 | 0 | 2025-06-25 | 1 | 1 | Diffusion process; Pade approximation; Rational polynomial; Semi-infinite geometry; Series expansion | HIGH-ORDER APPROXIMATIONS; CONTINUED-FRACTION; CYCLIC ADSORPTION; HEAT-CONDUCTION; INVERSION | Diffusion process; Pade approximation; Rational polynomial; Semi-infinite geometry; Series expansion | Geometry; Heat transfer coefficients; Heat transfer performance; Laplace transforms; Partial differential equations; Polynomial approximation; Time domain analysis; Diffusion process; Pade approximation; Rational polynomial; Semi-infinite geometry; Series expansion; Ordinary differential equations | English | 2020 | 2020-02-01 | 10.1080/00986445.2019.1578755 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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