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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 | Glucocorticoid-Dependent Retinal Degeneration and Vision Impairment in Mice Susceptible to Prenatal Stress-Induced Behavioral Abnormalities | Chronic exposure to prenatal stress can impair neurogenesis and lead to irreversible cognitive and neuropsychiatric abnormalities in offspring. The retina is part of the nervous system; however, the impacts of prenatal stress on retinal neurogenesis and visual function remain unclear. This study examined how elevated prenatal glucocorticoid levels differentially affect retinal development in the offspring of pregnant mice exposed to chronic unpredictable mild stress (CUMS). Offspring were classified into control, stress-resilient, and stress-susceptible groups based on behavioral tests assessing spatial memory and depression-like behaviors. The stress-susceptible group exhibited significantly altered synaptogenesis, reduced ganglion cell development, decreased retinal thickness, and visiual impairment. These mice also showed a pervasive transformation of retinal astrocytes into a proinflammatory A1-like reactive state, evidenced by increased GFAP and decreased STAT3 expression levels. This astrocyte phenotype shift coincided with disruptions in neurogenesis and synaptic formation. Furthermore, prenatal exposure to exogenous corticosterone confirmed that the effects of prenatal stress are mediated by glucocorticoid-induced retinal neurodegeneration. Our findings suggest that elevated prenatal glucocorticoid levels trigger a series of neurodevelopmental disturbances leading to retinal neurodegeneration and vision impairment. This research highlights the impact of prenatal stress on retinal development and visual health, suggesting new avenues for understanding and potentially mitigating the negative effects of early-life stress on neurodevelopment. | Ryu, Min-Ok; Jung, Ji-Youl; Suh, Han Na; Lee, Chung-Young; Kim, Myung-Chul; Oh, Ji Young; Song, Woo-Jin; Ahn, Changhwan; Yang, Yeseul; Choi, Gee Euhn | Seoul Natl Univ, Coll Vet Med, Dept Vet Clin Sci, Lab Vet Internal Med, Seoul 08826, South Korea; Jeju Natl Univ, Coll Vet Med, Jeju 63243, South Korea; Jeju Natl Univ, Vet Med Res Inst, Jeju 63243, South Korea; Korea Inst Toxicol, Ctr Translat Toxicol Res, 30 Baekhak1 Gil, Jeongup 56212, Jeonbukdo, South Korea; Kyungpook Natl Univ, Sch Med, Dept Microbiol, Daegu 41944, South Korea; Kyungpook Natl Univ, Untreatable Infect Dis Inst, Daegu 41944, South Korea; Jeju Natl Univ, Coll Vet Med, Vet Lab Med, Clin Pathol, Jeju 63243, South Korea; Jeju Natl Univ, Res Inst Vet Med, Coll Vet Med, Jeju 63243, South Korea; Korea Inst Hlth, Div Intractable Dis Res, Cheongju 28106, South Korea; Jeju Natl Univ, Coll Vet Med, Lab Vet Internal Med, Jeju 63243, South Korea; Jeju Natl Univ, Coll Vet Med, Lab Vet Physiol, Jeju 63243, South Korea; Seoul Natl Univ, Coll Vet Med, Lab Clin Pathol, Seoul 08826, South Korea; Jeju Natl Univ, Coll Vet Med, Lab Vet Biochem, Jeju 63243, South Korea; Jeju Natl Univ, Interdisciplinary Grad Program Adv Convergence Tec, Jeju 63243, South Korea | Ryu, Min-Ok/IXD-6807-2023 | choige@jejunu.ac.kr; | CELLULAR AND MOLECULAR NEUROBIOLOGY | CELL MOL NEUROBIOL | 0272-4340 | 1573-6830 | 45 | 1 | SCIE | CELL BIOLOGY;NEUROSCIENCES | 2024 | 4.8 | 18.3 | 0 | Prenatal stress; Retinal neurodevelopment; Glucocorticoid; Astrocyte activation; Resilience; Hypothalamic-Pituitary-Adrenal axis | MATERNAL STRESS; VULNERABILITY; RESILIENCE; DEPRESSION; RECEPTORS; PREGNANCY | English | 2024 | 2024-12 | 10.1007/s10571-024-01525-x | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Cilia-deficient renal tubule cells are primed for injury with mitochondrial defects and aberrant tryptophan metabolism | The exocyst and Ift88 are necessary for primary ciliogenesis. Overexpression of Exoc5 (OE), a central exocyst component, resulted in longer cilia and enhanced injury recovery. Mitochondria are involved in acute kidney injury (AKI). To investigate cilia and mitochondria, basal respiration and mitochondrial maximal and spare respiratory capacity were measured in Exoc5 OE, Exoc5 knockdown (KD), Exoc5 ciliary targeting sequence mutant (CTS-mut), control Madin-Darby canine kidney (MDCK), Ift88 knockout (KO), and Ift88 rescue cells. In Exoc5 KD, Exoc5 CTS-mut, and Ift88 KO cells, these parameters were decreased. In Exoc5 OE and Ift88 rescue cells they were increased. Reactive oxygen species were higher in Exoc5 KD, Exoc5 CTS-mut, and Ift88 KO cells compared with Exoc5 OE, control, and Ift88 rescue cells. By electron microscopy, mitochondria appeared abnormal in Exoc5 KD, Exoc5 CTS-mut, and Ift88 KO cells. A metabolomics screen of control, Exoc5 KD, Exoc5 CTS-mut, Exoc5 OE, Ift88 KO, and Ift88 rescue cells showed a marked increase in tryptophan levels in Exoc5 CTS-mut (113-fold) and Exoc5 KD (58-fold) compared with control cells. A 21% increase was seen in Ift88 KO compared with rescue cells. In Exoc5 OE compared with control cells, tryptophan was decreased 59%. To determine the effects of ciliary loss on AKI, we generated proximal tubule-specific Exoc5 and Ift88 KO mice. These mice had loss of primary cilia, decreased mitochondrial ATP synthase, and increased tryptophan in proximal tubules with greater injury following ischemia-reperfusion. These data indicate that cilia-deficient renal tubule cells are primed for injury with mitochondrial defects in tryptophan metabolism. NEW & NOTEWORTHY Mitochondria are centrally involved in acute kidney injury (AKI). Here, we show that cilia-deficient renal tubule cells both in vitro in cell culture and in vivo in mice are primed for injury with mitochondrial defects and aberrant tryptophan metabolism. These data suggest therapeutic strategies such as enhancing ciliogenesis or improving mitochondrial function to protect patients at risk for AKI. | Zuo, Xiaofeng; Winkler, Brennan; Lerner, Kasey; Ilatovskaya, Daria V.; Zamaro, Aleksandra S.; Dang, Yujing; Su, Yanhui; Deng, Peifeng; Fitzgibbon, Wayne; Hartman, Jessica; Park, Kwon Moo; Lipschutz, Joshua H. | Med Univ South Carolina, Dept Med, Charleston, SC 29425 USA; Augusta Univ, Med Coll Georgia, Dept Physiol, Augusta, GA USA; Med Univ South Carolina, Dept Biochem & Mol Biol, Charleston, SC USA; Kyungpook Natl Univ, Sch Med, Dept Anat, Daegu, South Korea; Ralph H Johnson Vet Affairs Hlth Care Syst, Dept Med, Charleston, SC 29401 USA | 15081655800; 58776090600; 58776090700; 35760198400; 57215590344; 7005099271; 56640290000; 57203417398; 7004154228; 55361522400; 8785448200; 6701696189 | Lipschut@musc.edu; | AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY | AM J PHYSIOL-RENAL | 1931-857X | 1522-1466 | 327 | 1 | SCIE | PHYSIOLOGY;UROLOGY & NEPHROLOGY | 2024 | 3.4 | 18.4 | 0 | 2025-05-07 | 1 | 1 | acute kidney injury; exocyst; mitochondria; oxidative stress; primary cilia | POLYCYSTIC KIDNEY-DISEASE; OXIDATIVE STRESS; EXOCYST; SEC10; CILIOGENESIS; CYSTOGENESIS; REDUCTION; MODELS; LENGTH | acute kidney injury; exocyst; mitochondria; oxidative stress; primary cilia | Acute Kidney Injury; Animals; Cilia; Dogs; Kidney Tubules; Madin Darby Canine Kidney Cells; Mice; Mice, Knockout; Mitochondria; Reactive Oxygen Species; Tryptophan; Tumor Suppressor Proteins; exocyst; proton transporting adenosine triphosphate synthase; reactive oxygen metabolite; Tg737Rpw protein, mouse; tryptophan; tumor suppressor protein; animal care; animal cell; animal experiment; animal model; animal tissue; Article; cell culture; comparative study; controlled study; electron microscopy; electrospray; fetal bovine serum; gene expression profiling; hydrophilic interaction chromatography; immunohistochemistry; in vitro study; kidney injury; kidney proximal tubule; kidney tissue; kidney tubule cell; liquid chromatography-mass spectrometry; MDCK cell line; metabolism; metabolomics; mitochondrial respiration; mitochondrion; mouse; nonhuman; oxidative stress; oxygen consumption rate; primary cilium; real time polymerase chain reaction; retention time; seahorse; tryptophan metabolism; ultra performance liquid chromatography; acute kidney failure; animal; cilium; dog; genetics; kidney tubule; knockout mouse; pathology | English | 2024 | 2024-07-09 | 10.1152/ajprenal.00225.2023 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Considerations regarding anesthesia for renal transplantation | Renal transplantation is a complex surgical procedure requiring meticulous anesthetic plan-ning to ensure patient safety and optimal graft function. In this comprehensive review, we examined various aspects of anesthesia management during renal transplantation, includ-ing preoperative, intraoperative, and postoperative care. Preoperative optimization involves the identification and management of risks to mitigate perioperative complications. Treat-ment with erythropoiesis-stimulating agents is recommended to correct anemia in trans-plant recipients with hemoglobin levels below 9-10 g/dl. Intraoperative management focus-es on hemodynamic monitoring, maintenance of intravascular volume, and careful selection of anesthetic techniques. Neuromuscular monitoring and the appropriate use of neuromus-cular blocking and reversal agents are considered essential. Further, hemodynamic goals in-clude maintaining the mean arterial pressure within the range of 80-110 mmHg. In addi-tion, attention should be paid to perioperative glycemic control, temperature management, and diuretic use. In postoperative management, multimodal analgesia and the prevention of postoperative delirium contribute to optimal recovery. The implementation of enhanced re-covery after surgery principles can further improve outcomes. Collaborative efforts among surgical teams, anesthesiologists, and healthcare professionals are crucial for achieving successful renal transplantation outcomes | Kim, Hyunjee; Jung, Hoon | Kyungpook Natl Univ, Sch Med, Dept Anesthesiol & Pain Med, Daegu, South Korea | 57208674365; 55967121200 | wing2392@naver.com; | ANESTHESIA AND PAIN MEDICINE | ANESTH PAIN MED | 1975-5171 | 2383-7977 | 19 | 1 | ESCI | ANESTHESIOLOGY | 2024 | 3.2 | 18.4 | 1.04 | 2025-04-16 | 1 | 2 | Anesthesia; Hemodynamics; Kidney; Pain; Transplantation | KIDNEY-TRANSPLANTATION; MANAGEMENT; SURGERY; SOCIETY | Anesthesia; Hemodynamics; Kidney; Pain; Transplantation | English | 2024 | 2024-01 | 10.17085/apm.23153 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Poly(ADP-ribose) polymerase-1 affects vasopressin-mediated AQP2 expression in collecting duct cells of the kidney | Poly(ADP-ribosyl)ation (PARylation), as a posttranslational modification mediated by poly(ADP-ribose) polymerases (PARPs) catalyzing the transfer of ADP-ribose from NAD(+) molecules to acceptor proteins, involves a number of cellular processes. As mice lacking the PARP-1 gene (Parp1) produce more urine, we investigated the role of PARP-1, the most prevalent member of the PARP family, in the vasopressin-responsive expression of aquaporin-2 (AQP2). In biotin-conjugated nicotinamide adenine dinucleotide (biotin-NAD(+)) pulldown and immunoprecipitation assays of poly(ADP)-ribose in mpkCCDc14 cells, immunoblots demonstrated that 1-deamino-8-D-arginine vasopressin (dDAVP) induced the PARylation of total proteins, associated with an increase in the cleavage of PARP-1 and cleaved caspase-3 expression. By inhibiting PARP-1 with siRNA, the abundance of dDAVP-induced AQP2 mRNA and protein was significantly diminished. In contrast, despite a substantial decrease in PARylation, the PARP-1 inhibitor (PJ34) had no effect on the dDAVP-induced regulation of AQP2 expression. The findings suggest that PARP-1 protein expression itself, and not PARP-1-mediated PARylation, is necessary for dDAVP-regulated AQP2 expression. Bioinformatic analysis revealed that 408 proteins interact with PARP-1 in the collecting duct (CD) cells of the kidney. Among them, the signaling pathway of the vasopressin V2 receptor was identified for 49 proteins. In particular, beta-catenin, which is phosphorylated at Ser(552) by dDAVP, was identified as the PARP-1-interacting protein. A significant decrease of beta-catenin phosphorylation (Ser(552)) in response to dDAVP was associated with siRNA-mediated PARP-1 knockdown. Taken together, PARP-1 is likely to play a role in vasopressin-induced AQP2 expression by interacting with beta-catenin in renal CD cells. NEW & NOTEWORTHY The poly(ADP-ribose) polymerase (PARP) family catalyzes poly(ADP-ribosylation) (PARylation), which is one of the posttranslational modifications of largely undetermined physiological significance. This study investigated the role of PARP-1, the most prevalent member of the PARP family, in the vasopressin-responsive expression of aquaporin-2 (AQP2). The results demonstrated that PARP-1 protein expression itself, and not PARP-1-mediated PARylation, is necessary for dDAVP-regulated AQP2 expression. beta-Catenin, which is phosphorylated at Ser(552) by dDAVP, was identified as the PARP-1-interacting protein. | Jang, Hyo-Ju; Park, Euijung; Jung, Hyun Jun; Kwon, Tae-Hwan | Kyungpook Natl Univ, Sch Med, Dept Biochem & Cell Biol, Taegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Sci, BK21 KNU Convergence Educ Program 4, Taegu, South Korea; NHLBI, Epithelial Syst Biol Ctr, NIH, Bethesda, MD USA; Johns Hopkins Univ, Sch Med, Dept Med, Div Nephrol, Baltimore, MD 21205 USA | Kwon, Tae-Hwan/ABA-1981-2020; Jung, Hyun Jun/LKM-4480-2024; PARK, EUIJUNG/LMO-3130-2024 | 57214330719; 50961544700; 36985354100; 7202206089 | hjung24@jhmi.edu;thkwon@knu.ac.kr; | AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY | AM J PHYSIOL-RENAL | 1931-857X | 1522-1466 | 326 | 1 | SCIE | PHYSIOLOGY;UROLOGY & NEPHROLOGY | 2024 | 3.4 | 18.4 | 0 | 2025-04-16 | 2 | 1 | aquaporin-2; beta-catenin; poly(ADP-ribose) polymerase 1; transcriptional regulation; vasopressin signaling | BETA-CATENIN; SIGNALING PATHWAYS; NUCLEAR FRACTIONS; GENE-EXPRESSION; DOWN-REGULATION; PROTEIN; PARP-1; REVEALS; PHOSPHORYLATION; AQUAPORIN-2 | aquaporin-2; b -catenin; poly(ADP-ribose) polymerase 1; transcriptional regulation; vasopressin signaling | Animals; Aquaporin 2; beta Catenin; Biotin; Deamino Arginine Vasopressin; Kidney; Mice; NAD; Poly (ADP-Ribose) Polymerase-1; Poly Adenosine Diphosphate Ribose; Poly(ADP-ribose) Polymerase Inhibitors; Poly(ADP-ribose) Polymerases; RNA, Small Interfering; Vasopressins; aquaporin 2; beta catenin; biotin; desmopressin; nicotinamide adenine dinucleotide; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase 1; poly(adenosine diphosphate ribose); serine; small interfering RNA; vasopressin V2 receptor; aquaporin 2; argipressin[1 deamino]; beta catenin; nicotinamide adenine dinucleotide; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase 1; nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase inhibitor; poly(adenosine diphosphate ribose); vasopressin derivative; animal cell; Article; bioinformatics; cell nucleus; controlled study; cytoplasm; gene knockdown; immunoblotting; immunoprecipitation; intracellular space; kidney collecting tubule; mouse; nonhuman; poly(adenosine diphosphate) ribosylation; protein expression; protein function; protein interaction; protein phosphorylation; pull-down assay; signal transduction; animal; genetics; kidney; metabolism | English | 2024 | 2024-01-19 | 10.1152/ajprenal.00144.2023 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Correction | Poly(ADP-ribose) polymerase-1 affects vasopressin-mediated AQP2 expression in collecting duct cells of the kidney (vol 326, pg F69, 2024) | Jang, Hyo-Ju; Park, Euijung; Jung, Hyun Jun; Kwon, Tae-Hwan | Kyungpook Natl Univ, Sch Med, Dept Biochem & Cell Biol, Taegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Sci, BK21 FOUR KNU Convergence Educ Program, Taegu, South Korea; NHLBI, Epithelial Syst Biol Ctr, NIH, Bethesda, MD USA; Johns Hopkins Univ, Sch Med, Dept Med, Div Nephrol, Baltimore, MD 21205 USA | Kwon, Tae-Hwan/ABA-1981-2020; Jung, Hyun Jun/LKM-4480-2024 | hjung24@jhmi.edu;thkwon@knu.ac.kr; | AMERICAN JOURNAL OF PHYSIOLOGY-RENAL PHYSIOLOGY | AM J PHYSIOL-RENAL | 1931-857X | 1522-1466 | 326 | 4 | SCIE | PHYSIOLOGY;UROLOGY & NEPHROLOGY | 2024 | 3.4 | 18.4 | 0 | English | 2024 | 2024-04-01 | 10.1152/ajprenal.00144.2023_cor | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | ○ | Article | Preoperative echocardiography as a predictor of spinal anesthesia-induced hypotension in older patients with mild left ventricular diastolic dysfunction: a retrospective observational study | Background: Spinal anesthesia-induced hypotension (SAH) frequently occurs in older patients, many of whom have mild left ventricular (LV) diastolic dysfunction, often asymptomatic at rest. This study investigated the association between preoperative echocardiographic measurements and SAH in older patients with mild LV diastolic dysfunction. Methods: We conducted a retrospective observational study using data from electronic medical records. The patients >= 65 years old who underwent spinal anesthesia for urologic surgery between January 2016 and December 2017 and whose preoperative echocardiography within 6 months before surgery revealed grade I LV diastolic dysfunction were recruited. SAH was investigated using the anesthesia records. Logistic regression and receiver operating characteristic (ROC) curve analyses were performed. Results: A total of 163 patients were analyzed. SAH and significant SAH developed in 55 (33.7%) patients. The mitral inflow E velocity was an independent risk factor for SAH (odds ratio [OR], 0.886; 95% confidence interval [CI], 0.845-0.929; P < 0.001). The area under the ROC curve for mitral inflow E velocity to predict SAH was 0.819 (95% CI, 0.752-0.875; P < 0.001). If mitral inflow E velocity was <= 60 cm/s, SAH was predicted with a sensitivity of 83.6% and specificity of 70.4%. Conclusions: The preoperative mitral inflow E velocity demonstrated the greatest predictability of SAH in older patients with mild LV diastolic dysfunction. This may assist in identifying patients at high risk of SAH and guiding preventive strategies in the future. | Park, Eun Ji; Cho, Ah-Reum; Kim, Hyae-Jin; Lee, Hyeon-Jeong; Jeon, Soeun; Baik, Jiseok; Do, Wangseok; Kang, Christine; Kang, Yerin | Pusan Natl Univ Hosp, Med Res Inst, Dept Anesthesia & Pain Med, 179 Gudeok Ro, Busan 49241, South Korea; Pusan Natl Univ, Sch Med, Dept Anesthesia & Pain Med, Busan, South Korea; Kyungpook Natl Univ, Chilgok Hosp, Sch Med, Dept Anesthesia & Pain Med, Daegu, South Korea; Seoul Natl Univ Hosp, Dept Anesthesiol & Pain Med, Seoul, South Korea | ; Kim, Hyae Jin/HIR-5575-2022 | 57218404061; 37030745800; 56668955600; 38061496500; 57190426433; 26029761100; 55446601400; 57192211991; 58913250800 | archo@pusan.ac.kr; | ANESTHESIA AND PAIN MEDICINE | ANESTH PAIN MED | 1975-5171 | 2383-7977 | 19 | 2 | ESCI | ANESTHESIOLOGY | 2024 | 3.2 | 18.4 | 0 | 2025-05-07 | 1 | 0 | Anesthesia, spinal; Echocardiography; Geriatrics; Hypotension; Left ventricular diastolic dysfunction | CEREBROSPINAL-FLUID VOLUME; STROKE VOLUME; RISK-FACTORS; POPULATION; VELOCITY; AGE | Anesthesia, spinal; Echocardiography; Geriatrics; Hypotension; Left ventricular diastolic dysfunction | English | 2024 | 2024-04 | 10.17085/apm.23161 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Absolute dimensions of solar-type eclipsing binaries | Context. The binary star NY Hya is a bright, detached, double-lined eclipsing system with an orbital period of just under five days with two components each nearly identical to the Sun and located in the solar neighbourhood. Aims. The objective of this study is to test and confront various stellar evolution models for solar-type stars based on accurate measurements of stellar mass and radius. Methods. We present new ground-based spectroscopic and photometric as well as high-precision space-based photometric and astrometric data from which we derive orbital as well as physical properties of the components via the method of least-squares minimisation based on a standard binary model valid for two detached components. Classic statistical techniques were invoked to test the significance of model parameters. Additional empirical evidence was compiled from the public domain; the derived system properties were compared with archival broad-band photometry data enabling a measurement of the system's spectral energy distribution that allowed an independent estimate of stellar properties. We also utilised semi-empirical calibration methods to derive atmospheric properties from Str & ouml;mgren photometry and related colour indices. Results. We measured (percentages are fractional uncertainties) masses, radii, and effective temperatures of the two stars in NY Hya and found them to be M-A = 1.1605 +/- 0.0090 M-circle dot (0.78%), R-A = 1.407 +/- 0.015 R-circle dot (1.1%), T-eff,T- A = 5595 +/- 61 K (1.09%), M-B = 1.1678 +/- 0.0096 M-circle dot (0.82%), R-B = 1.406 +/- 0.017 R-circle dot (1.2%), and T-eff,T- B = 5607 +/- 61 K (1.09%). The atmospheric properties from Str & ouml;mgren photometry agree well with spectroscopic results. No evidence was found for nearby companions from high-resolution imaging. A detailed analysis of space-based data revealed a small but significant eccentricity (e cos omega) of the orbit. The spectroscopic and frequency analysis on photometric time series data reveal evidence of clear photospheric activity on both components likely in the form of star spots caused by magnetic activity. Conclusions. We confronted the observed physical properties with classic and magnetic stellar evolution models. Classic models yielded both young pre-main-sequence and old main-sequence turn-off solutions with the two components at super-solar metallicities, in disagreement with observations. Based on chromospheric activity and X-ray observations, we invoke magnetic models. While magnetic fields are likely to play an important role, we still encounter problems in explaining adequately the observed properties. To reconcile the observed tensions we also considered the effects of star spots known to mimic magnetic inhibition of convection. Encouraging results were obtained, although unrealistically large spots were required on each component. Overall we conclude that NY Hya proves to be complex in nature, and requires additional follow-up work aiming at a more accurate determination of stellar effective temperature and metallicity. | Hinse, T. C.; Basturk, O.; Southworth, J.; Feiden, G. A.; Tregloan-Reed, J.; Kostov, V. B.; Livingston, J.; Esmer, E. M.; Yilmaz, M.; Yalcinkaya, S.; Torun, S.; Vos, J.; Evans, D. F.; Morales, J. C.; Wolf, J. C. A.; Olsen, E. H.; Clausen, J. V.; Helt, B. E.; Ly, C. T. K.; Stahl, O.; Wells, R.; Herath, M.; Jorgensen, U. G.; Dominik, M.; Skottfelt, J.; Peixinho, N.; Longa-Pena, P.; Kim, Y.; Kim, H. -E.; Yoon, T. S.; Alrebdi, H. I.; Zotos, E. E. | Univ Southern Denmark, SDU Galaxy, Dept Phys Chem & Pharm, Campusvej 55, DK-5230 Odense M, Denmark; Ankara Univ, Fac Sci, Dept Astron & Space Sci, TR-06100 Ankara, Turkiye; Ankara Univ, Astron & Space Sci Res & Applicat Ctr, Kreiken Observ, Incek Blvd, TR-06837 Ankara, Turkiye; Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs, England; Univ North Georgia, Dept Phys & Astron, Dahlonega, GA 30597 USA; Univ Atacama, Inst Invest Astron & Ciencias Planetarias, Ave Copayapu 485, Copiapo, Atacama, Chile; NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA; SETI Inst, 189 Bernardo Ave,Suite 200, Mountain View, CA 94043 USA; NINS, Astrobiol Ctr, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; NINS, Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; Grad Univ Adv Studies, SOKENDAI, Astron Sci Program, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan; Ankara Univ, Grad Sch Nat & Appl Sci, Dept Astron & Space Sci, TR-06100 Ankara, Turkiye; Czech Acad Sci, Astron Inst, Ondrejov 25165, Czech Republic; CSIC, Inst Ciencies Espai ICE, Campus UAB,C Can Magrans S-N, Bellaterra 08193, Barcelona, Spain; Inst Estudis Espacials Catalunya IEEC, Campus UPC,Edifici RDIT, Castelldefels 08860, Barcelona, Spain; Univ Copenhagen, Niels Bohr Inst, Jagtvej 155, DK-2200 Copenhagen, Denmark; Chungnam Natl Univ, Dept Astron Space Sci & Geol, Daejeon, South Korea; Heidelberg Univ, Zent Astron, Landessternwarte, D-69117 Heidelberg, Germany; Univ Bern, Ctr Space & Habitabil, Gesellschaftsstr 6, CH-3012 Bern, Switzerland; McGill Univ, McGill Space Inst, 3550 Univ St, Montreal, PQ H3A 2A7, Canada; Arthur C Clarke Inst Modern Technol, Dept Astron, Moratuwa 0272, Sri Lanka; Univ Copenhagen, Niels Bohr Inst, Ctr ExoLife Sci, Oster Voldgade 5, DK-1350 Copenhagen, Denmark; Univ St Andrews, Ctr Exoplanet Sci, SUPA Sch Phys & Astron, St Andrews KY16 9SS, England; Open Univ, Ctr Elect Imaging, Sch Phys Sci, Milton Keynes MK7 6AA, England; Univ Coimbra, Dept Fis, Inst Astrofis & Ciencias Espaco, P-3040004 Coimbra, Portugal; Univ Antofagasta, Ctr Astron, Ave Angamos 601, Antofagasta 1270300, Chile; Chungbuk Natl Univ, Chungbuk Natl Univ Observ, Cheongju 28644, South Korea; Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 41566, South Korea; Princess Nourah bint Abdulrahman Univ, Coll Sci, Dept Phys, POB 84428, Riyadh 11671, Saudi Arabia; Aristotle Univ Thessaloniki, Sch Sci, Dept Phys, Thessaloniki 54124, Greece; RUDN Univ, PeoplesFriendship Univ Russia, SM Nikolskii Math Inst, Moscow 117198, Russia | Basturk, Ozgur/AAE-2058-2020; Feiden, Gregory/F-1505-2015; Skottfelt, Jesper/NES-1075-2025; Dominik, Martin/AAA-9501-2020; YALÇINKAYA, SELÇUK/AAI-9304-2021; Zotos, Euaggelos/AAF-1502-2020; Hinse, Tobias/W-5579-2018; Peixinho, Nuno/B-2570-2014; Hinse, Tobias Cornelius/W-5579-2018; Alrebdi, Haifa/AFK-9034-2022; Livingston, John/MVW-5337-2025; ESMER, EKREM/HGB-8328-2022; Morales, Juan/H-5548-2015; YALCINKAYA, SELCUK/AAI-9304-2021 | 15753241800; 36776647100; 7003895142; 20733883500; 33167826400; 35974987300; 55440665300; 55958856600; 56212316100; 57204697946; 57212351838; 55147212500; 55597737800; 56501275900; 59041953000; 7201962898; 7202650459; 6506184168; 57214224989; 7004853715; 57225783975; 57214232070; 35431654600; 7005054545; 35100980600; 55911591000; 54894528900; 7410200855; 59051750500; 7201604397; 57219482420; 35108575900 | tchinse@gmail.com; | ASTRONOMY & ASTROPHYSICS | ASTRON ASTROPHYS | 0004-6361 | 1432-0746 | 687 | SCIE | ASTRONOMY & ASTROPHYSICS | 2024 | 5.8 | 18.5 | 0 | 2025-05-07 | 1 | 1 | binaries: eclipsing; binaries: spectroscopic; stars: fundamental parameters; stars: individual: HD80747; stars: solar-type | GENEVA-COPENHAGEN SURVEY; LOW-MASS STARS; STELLAR EVOLUTION MODELS; PRE-MAIN-SEQUENCE; G-DWARF; CHROMOSPHERIC-ACTIVITY; ELEMENTAL ABUNDANCE; F-DWARF; ATMOSPHERIC PARAMETERS; FUNDAMENTAL PROPERTIES | binaries: eclipsing; binaries: spectroscopic; stars: fundamental parameters; stars: individual: HD80747; stars: solar-type | Least squares approximations; Orbits; Physical properties; Spectroscopic analysis; Stars; Time series analysis; Binaries: spectroscopic; Binaries:eclipsing; Evolution modeling; Measurements of; Star: individual: hd80747; Stars: individual: proxima Centauri; Stars: solar types; Stars:fundamental parameters; Stellar evolutions; Two-component; Photometry | English | 2024 | 2024-07-02 | 10.1051/0004-6361/202244066 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Analysis of the impact of COVID-19 variants and vaccination on the time-varying reproduction number: statistical methods | Introduction The COVID-19 pandemic has profoundly impacted global health systems, requiring the monitoring of infection waves and strategies to control transmission. Estimating the time-varying reproduction number is crucial for understanding the epidemic and guiding interventions.Methods Probability distributions of serial interval are estimated for Pre-Delta and Delta periods. We conducted a comparative analysis of time-varying reproduction numbers, taking into account population immunity and variant differences. We incorporated the regional heterogeneity and age distribution of the population, as well as the evolving variants and vaccination rates over time. COVID-19 transmission dynamics were analyzed with variants and vaccination.Results The reproduction number is computed with and without considering variant-based immunity. In addition, values of reproduction number significantly differed by variants, emphasizing immunity's importance. Enhanced vaccination efforts and stringent control measures were effective in reducing the transmission of the Delta variant. Conversely, Pre-Delta variant appeared less influenced by immunity levels, due to lower vaccination rates. Furthermore, during the Pre-Delta period, there was a significant difference between the region-specific and the non-region-specific reproduction numbers, with particularly distinct pattern differences observed in Gangwon, Gyeongbuk, and Jeju in Korea.Discussion This research elucidates the dynamics of COVID-19 transmission concerning the dominance of the Delta variant, the efficacy of vaccinations, and the influence of immunity levels. It highlights the necessity for targeted interventions and extensive vaccination coverage. This study makes a significant contribution to the understanding of disease transmission mechanisms and informs public health strategies. | Jang, Geunsoo; Kim, Jihyeon; Lee, Yeonsu; Son, Changdae; Ko, Kyeong Tae; Lee, Hyojung | Kyungpook Natl Univ, Nonlinear Dynam & Math Applicat Ctr, Daegu, South Korea; Kyungpook Natl Univ, Dept Stat, Daegu, South Korea | 57471384400; 59189008300; 59221437100; 59222274400; 59221437200; 57196021198 | hjlee@knu.ac.kr; | FRONTIERS IN PUBLIC HEALTH | FRONT PUBLIC HEALTH | 2296-2565 | 12 | SCIE;SSCI | PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2024 | 3.4 | 18.5 | 0.83 | 2025-05-07 | 1 | 1 | COVID-19; time-varying reproduction number; serial interval; variant; public health intervention; vaccination | SERIAL INTERVAL | COVID-19; public health intervention; serial interval; time-varying reproduction number; vaccination; variant | Basic Reproduction Number; COVID-19; COVID-19 Vaccines; Humans; Models, Statistical; Pandemics; Republic of Korea; SARS-CoV-2; SARS-CoV-2 variants; Vaccination; SARS-CoV-2 vaccine; basic reproduction number; coronavirus disease 2019; epidemiology; human; immunology; pandemic; prevention and control; Severe acute respiratory syndrome coronavirus 2; South Korea; statistical model; vaccination | English | 2024 | 2024-07-03 | 10.3389/fpubh.2024.1353441 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Data-driven analysis of the effect of screening and treatment on the spread of HIV in developing and developed countries | Introduction In this study, we used a mathematical epidemic model to explore the status of the HIV epidemic in the USA and Pakistan. In addition to studying the dynamics of the model, we fitted the model with recent data to estimate the parameters describing the epidemic in both countries.Results Our estimation shows that in the USA, the reproduction number is 0.9688 (0.9684, 0.9694); if the reproduction number is maintained at this level, it would take a long time to eradicate HIV entirely. Meanwhile, it is 2.2599 (2.2556, 2.2656) in Pakistan, which is due to a lack of awareness in the confirmed group and a lower rate of maintained treatment. We also estimated the rate of vertical transmission, which plays a significant role in Pakistan but not in the USA.Discussion We conclude that improving the screening rate and educating people would be effective for controlling HIV in Pakistan, whereas improved screening rate in the USA can eradicate HIV faster. | Abbas, Wasim; Masud, M. A.; Parveen, Sajida; Lee, Hyojung; Kim, Sangil | Pusan Natl Univ, Dept Math, Busan, South Korea; Pusan Natl Univ, Inst Math Sci, Busan, South Korea; H Lee Moffitt Canc Ctr & Res Inst, Integrated Math Oncol Dept, Tampa, FL USA; Kyungpook Natl Univ, Dept Stat, Daegu, South Korea; Pusan Natl Univ, Inst Future Earth, Busan, South Korea | Abbas, Wasim/D-7218-2018 | 57871336100; 37119035900; 58254074600; 57196021198; 34978723300 | sangil.kim@pusan.ac.kr; | FRONTIERS IN PUBLIC HEALTH | FRONT PUBLIC HEALTH | 2296-2565 | 12 | SCIE;SSCI | PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2024 | 3.4 | 18.5 | 0.83 | 2025-05-07 | 1 | 1 | HIV/AIDS; horizontal and vertical transmission; maximum likelihood method; screening; treatment | HIV/AIDS EPIDEMIC MODEL; MOTHER-TO-CHILD; ENDEMIC EQUILIBRIA; AIDS EPIDEMIC; TRANSMISSION; DYNAMICS; STABILITY | HIV/AIDS; horizontal and vertical transmission; maximum likelihood method; screening; treatment | Developed Countries; Developing Countries; Epidemics; Female; HIV Infections; Humans; Infectious Disease Transmission, Vertical; Mass Screening; Models, Theoretical; Pakistan; United States; developing country; diagnosis; epidemic; epidemiology; female; human; Human immunodeficiency virus infection; mass screening; Pakistan; prevention and control; theoretical model; United States; vertical transmission | English | 2024 | 2024-11-14 | 10.3389/fpubh.2024.1437678 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Correction | Detection of COVID-19 epidemic outbreak using machine learning | Cho, Giphil; Park, Jeong Rye; Choi, Yongin; Ahn, Hyeonjeong; Lee, Hyojung | Kangwon Natl Univ, Dept Artificial Intelligence & Software, Samcheok Si, South Korea; Kyungpook Natl Univ, Dept Math, Daegu, South Korea; Natl Inst Math Sci, Busan Ctr Med Math, Daejeon, South Korea; Kyungpook Natl Univ, Dept Stat, Daegu, South Korea | Park, Jeong Rye/MDS-8129-2025 | 56665111500; 59534419400; 57204844522; 58029969000; 57196021198 | hjlee@knu.ac.kr; | FRONTIERS IN PUBLIC HEALTH | FRONT PUBLIC HEALTH | 2296-2565 | 12 | SCIE;SSCI | PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2024 | 3.4 | 18.5 | 0 | 2025-05-07 | 0 | 0 | COVID-19; prediction; machine learning; early detection; outbreak | COVID-19; early detection; machine learning; outbreak; prediction | controlled study; coronavirus disease 2019; diagnosis; epidemiology; erratum; human; machine learning; prediction | English | 2024 | 2024-02-22 | 10.3389/fpubh.2024.1381284 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Eddington ratios of dust-obscured quasars at z ≲ 1: Evidence supporting dust-obscured quasars as young quasars | Dust-obscured quasars have been suspected of being the intermediate-stage galaxies between merger-driven star-forming galaxies and unobscured quasars. This merger-driven galaxy evolution scenario suggests that dust-obscured quasars exhibit higher Eddington ratios (lambda(Edd)) than those of unobscured quasars. However, their high dust obscuration poses challenges to accurately measuring their lambda(Edd) using commonly employed bolometric luminosity (L-bol) and black hole mass (M-BH) estimators based on the ultraviolet or optical luminosity. Recently, new estimators for L-bol and M-BH based on mid-infrared continuum luminosity (L-MIR) were established, which are less affected by dust obscuration. These estimators enable the study of a large number of dust-obscured quasars across a wide redshift range. In this study, we measure the lambda(Edd) values of 30 dust-obscured quasars at z less than or similar to 1, the largest sample size to date, using the L-MIR-based L-bol and M-BH estimators. Our findings reveal that dust-obscured quasars exhibit significantly higher lambda(Edd) values compared to unobscured quasars. Moreover, we confirm that the enhanced lambda(Edd) values of dust-obscured quasars maintain consistency across the redshift span of 0 to 1. Our results strongly support the picture that dust-obscured quasars are in an earlier stage than unobscured quasars on the merger-driven galaxy evolutionary track. | Kim, Dohyeong; Kim, Yongjung; Im, Myungshin; Glikman, Eilat; Kim, Minjin; Urrutia, Tanya; Lim, Gu | Pusan Natl Univ, Dept Earth Sci, Busan 46241, South Korea; Korea Astron & Space Sci Inst, Daejeon 34055, South Korea; Seoul Natl Univ, SNU Astron Res Ctr SNU ARC, Dept Phys & Astron, Astron Program, Seoul 08826, South Korea; Middlebury Coll, Dept Phys, Middlebury, VT 05753 USA; Kyungpook Natl Univ, Coll Nat Sci, Dept Astron & Atmospher Sci, Daegu 41566, South Korea; Leibniz Inst Astrophys, Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany | , Yong Jung Kim/JRW-0681-2023; Lim, Gu/MHP-9254-2025; Kim, Minjin/AAU-9910-2020 | 55574223678; 59622148200; 7004267711; 16177151100; 56898213300; 8055450300; 57196357970 | dh.dr2kim@gmail.com;yjkim.ast@gmail.com; | ASTRONOMY & ASTROPHYSICS | ASTRON ASTROPHYS | 0004-6361 | 1432-0746 | 690 | SCIE | ASTRONOMY & ASTROPHYSICS | 2024 | 5.8 | 18.5 | 0.71 | 2025-05-07 | 1 | 2 | galaxies: active; galaxies: evolution; quasars: emission lines; quasars: general; quasars: supermassive black holes; infrared: galaxies | ACTIVE GALACTIC NUCLEI; DIGITAL SKY SURVEY; BLACK-HOLE MASSES; SPECTRAL ENERGY-DISTRIBUTIONS; RED QUASARS; BOLOMETRIC LUMINOSITY; GALAXY MERGERS; MULTIWAVELENGTH PROPERTIES; ELLIPTIC GALAXIES; TYPE-1 QUASARS | Galaxies: active; Galaxies: evolution; Infrared: galaxies; Quasars: emission lines; Quasars: general; Quasars: supermassive black holes | Bolometric luminosities; Galaxies active; Galaxy evolution; Infrared galaxies; Intermediate stage; Quasar: supermassive black hole; Quasars: emission line; Quasars:general; Star forming galaxy; Supermassive black holes; Photons | English | 2024 | 2024-10-17 | 10.1051/0004-6361/202450290 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effects of galaxy environment on merger fraction | Aims. In this work we examine how environment influences the merger fraction, from the low density field environment to higher density groups and clusters. We also study how the properties of a group or cluster, as well as the position of a galaxy in the group or cluster, influences the merger fraction. Methods. We identified galaxy groups and clusters in the North Ecliptic Pole using a friends-of-friends algorithm and the local density. Once identified, we determined the central galaxies, group radii, velocity dispersions, and group masses of these groups and clusters. Merging systems were identified with a neural network as well as visually. With these identifications and properties of groups and clusters and merging galaxy identifications, we examined how the merger fraction changes as the local density changes for all galaxies as well as how the merger fraction changes as the properties of the groups or clusters change. Results. We find that the merger fraction increases as local density increases and decreases as the velocity dispersion increases, as is often found in the literature. A decrease in merger fraction as the group mass increases is also found. We also find that groups with larger radii have higher merger fractions. The number of galaxies in a group does not influence the merger fraction. Conclusions. The decrease in merger fraction as group mass increases is a result of the link between group mass and velocity dispersion. Hence, this decrease in merger fraction with increasing mass is a result of the decrease of merger fraction with velocity dispersion. The increasing relation between group radii and merger fraction may be a result of larger groups having smaller velocity dispersion at a larger distance from the centre or larger groups hosting smaller, infalling groups with more mergers. However, we do not find evidence of smaller groups having higher merger fractions. | Pearson, W. J.; Santos, D. J. D.; Goto, T.; Huang, T. -C.; Kim, S. J.; Matsuhara, H.; Pollo, A.; Ho, S. C. -C.; Hwang, H. S.; Malek, K.; Nakagawa, T.; Romano, M.; Serjeant, S.; Suelves, L. E.; Shim, H.; White, G. J. | Natl Ctr Nucl Res, Pasteura 7, PL-02093 Warsaw, Poland; Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany; Natl Tsing Hua Univ, Inst Astron, 101,Sect 2,Kuang Fu Rd, Hsinchu 30013, Taiwan; Grad Univ Adv Studies, SOKENDAI, Sch Phys Sci, Dept Space & Astronaut Sci, Miura Dist, Kanagawa 2400193, Japan; Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, 3-1-1 Yoshinodai,Chuo Ku, Sagamihara, Kanagawa 2525210, Japan; Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2611, Australia; Swinburne Univ Technol, Ctr Astrophys & Supercomp, POB 218, Hawthorn, Vic 3122, Australia; OzGrav Australian Res Council Ctr Excellence Gravi, Hawthorn, Vic 3122, Australia; ASTRO3D Australian Res Council Ctr Excellence All, Canberra, ACT 2611, Australia; Seoul Natl Univ, Dept Phys & Astron, Astron Program, 1 Gwanak Ro, Seoul 08826, South Korea; Seoul Natl Univ, SNU Astron Res Ctr, 1 Gwanak Ro, Seoul 08826, South Korea; INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy; Open Univ, Sch Phys Sci, Walton Hall, Milton Keynes MK7 6AA, England; Kyungpook Natl Univ, Dept Earth Sci Educ, 80 Daehak Ro, Daegu 41566, South Korea; STFC Rutherford Appleton Lab, Space Sci & Technol Div, RALSpace, Chilton OX11 0QX, Didcot, England | ; HWANG, Ho/AAS-6010-2020; MAŁEK, KATARZYNA/A-1254-2012; Romano, Michael/AAB-5134-2022 | 57195032075; 57218278835; 57151800100; 57203623570; 57070819300; 7003505733; 56234075800; 57216812477; 15131707100; 56210521800; 7404044150; 57214466123; 7003485288; 57479401900; 14061137700; 7403458984 | william.pearson@ncbj.gov.pl; | ASTRONOMY & ASTROPHYSICS | ASTRON ASTROPHYS | 0004-6361 | 1432-0746 | 686 | SCIE | ASTRONOMY & ASTROPHYSICS | 2024 | 5.8 | 18.5 | 1.43 | 2025-05-07 | 3 | 5 | galaxies: clusters: general; galaxies: evolution; galaxies: groups: general; galaxies: interactions; galaxies: statistics | DIGITAL SKY SURVEY; STAR-FORMATION RATE; MASS ASSEMBLY GAMA; STELLAR MASS; MORPHOLOGICAL TRANSFORMATION; PHOTOMETRIC REDSHIFTS; INTERACTING GALAXIES; NUCLEAR ACTIVITY; SPIRAL GALAXIES; GALACTIC NUCLEI | galaxies: clusters: general; galaxies: evolution; galaxies: groups: general; galaxies: interactions; galaxies: statistics | Dispersions; Mergers and acquisitions; Merging; Galaxies: clusters: General; Galaxies: groups: generals; Galaxies: interactions; Galaxies: statistics; Galaxy evolution; Galaxy group; Local-density; Mass increase; Property; Velocity dispersion; Galaxies | English | 2024 | 2024-06-03 | 10.1051/0004-6361/202349034 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Evidence of a toroidal magnetic field in the core of 3C 84 | The spatial scales of relativistic radio jets, probed by relativistic magneto-hydrodynamic (RMHD) jet launching simulations and by most very long baseline interferometry (VLBI) observations differ by an order of magnitude. Bridging the gap between these RMHD simulations and VLBI observations requires selecting nearby active galactic nuclei (AGN), the parsec-scale region of which can be resolved. The radio source 3C 84 is a nearby bright AGN fulfilling the necessary requirements: it is launching a powerful, relativistic jet powered by a central supermassive black hole, while also being very bright. Using 22 GHz globe-spanning VLBI measurements of 3C 84 we studied its sub-parsec region in both total intensity and linear polarisation to explore the properties of this jet, with a linear resolution of similar to 0.1 parsec. We tested different simulation set-ups by altering the bulk Lorentz factor Gamma of the jet, as well as the magnetic field configuration (toroidal, poloidal, helical). We confirm the persistence of a limb brightened structure, which reaches deep into the sub-parsec region. The corresponding electric vector position angles (EVPAs) follow the bulk jet flow inside but tend to be orthogonal to it near the edges. Our state-of-the-art RMHD simulations show that this geometry is consistent with a spine-sheath model, associated with a mildly relativistic flow and a toroidal magnetic field configuration. | Paraschos, G. F.; Debbrecht, L. C.; Kramer, J. A.; Traianou, E.; Liodakis, I.; Krichbaum, T. P.; Kim, J. -y.; Janssen, M.; Nair, D. G.; Savolainen, T.; Ros, E.; Bach, U.; Hodgson, J. A.; Lisakov, M.; MacDonald, N. R.; Zensus, J. A. | Max Planck Inst Radioastron, Auf dem Hugel 69, D-53121 Bonn, Germany; Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA; Inst Astrofis Andalucia CSIC, Glorieta de la Astronomia 18008, Granada, Spain; NASA, Marshall Space Flight Ctr, Huntsville, AL 35812 USA; Fdn Res & Technol, Inst Astrophys, Iraklion 7110, Greece; Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 702701, South Korea; Radboud Univ Nijmegen, Dept Astrophys, Inst Math Astrophys & Particle Phys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands; Univ Concepcion, Astron Dept, Casilla 160 C, Concepcion, Chile; Aalto Univ, Dept Elect & Nanoengn, PL 15500, Aalto 00076, Finland; Aalto Univ, Metsahovi Radio Observ, Metsahovintie 114, Kylmala 02540, Finland; Sejong Univ, Dept Phys & Astron, Seoul 05006, South Korea; Russian Acad Sci, Lebedev Phys Inst, Leninsky Prospekt 53, Moscow 119991, Russia; Pontificia Univ Catolica Valparaiso, Inst Fis, Casilla 4059, Valparaiso, Chile; Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA | Ros, Eduardo/B-1014-2015; Bach, Udo/F-3880-2012; Kim, Jae-Young/IUO-6466-2023; Lisakov, Mikhail/JAX-3277-2023; Lisakov, Mikhail/M-6034-2013; Liodakis, Ioannis/F-7582-2017 | 57224966143; 58765603600; 57265228200; 57204824800; 56866353000; 7004015011; 57211836467; 57213908458; 57205677745; 7003371610; 7102531000; 8356678200; 55622269600; 25958231300; 56842396800; 7004929291 | gfparaschos@mpifr-bonn.mpg.de; | ASTRONOMY & ASTROPHYSICS | ASTRON ASTROPHYS | 0004-6361 | 1432-0746 | 686 | SCIE | ASTRONOMY & ASTROPHYSICS | 2024 | 5.8 | 18.5 | 2.14 | 2025-05-07 | 6 | 7 | instrumentation: high angular resolution; instrumentation: interferometers; galaxies: active; galaxies: individual: 3C 84 (NGC 1275); galaxies: jets | TELESCOPE RESULTS. I.; X-RAY-POLARIZATION; RADIO JET; RELATIVISTIC JETS; BL-LACERTAE; NGC 1275; LINEAR-POLARIZATION; BLACK-HOLE; 43 GHZ; SCALE | Galaxies: Active; Galaxies: individual: 3C 84 (NGC 1275); Galaxies: jets; Instrumentation: high angular resolution; Instrumentation: interferometers | Magnetohydrodynamics; Radio astronomy; Galaxies active; Galaxies jets; Galaxies: individuals; Galaxy: individual: 3c 84 (NGC 1275); Instrumentation: interferometers; Instrumentation:high angular resolution; Magnetohydrodynamic simulations; Relativistics; Toroidal magnetic fields; Very long baseline interferometry; Active Galactic Nuclei | English | 2024 | 2024-05-27 | 10.1051/0004-6361/202450218 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Intravascular imaging-guided percutaneous coronary intervention in patients with acute myocardial infarction and cardiogenic shock | Introduction and objectives: There are no clinical data on the efficacy of intravascular imaging-guided percutaneous coronary intervention (PCI) compared with angiography-guided PCI in patients with acute myocardial infarction (AMI) and cardiogenic shock. The current study sought to evaluate the impact of intravascular imaging-guided PCI in patients with AMI and cardiogenic shock. Methods: Among a total of 28 732 patients from the nationwide pooled registry of KAMIR-NIH (November, 2011 to December, 2015) and KAMIR-V (January, 2016 to June, 2020), we selected a total of 1833 patients (6.4%) with AMI and cardiogenic shock who underwent PCI of the culprit vessel. The primary endpoint was major adverse cardiovascular events (MACE) at 1 year, a composite of cardiac death, myocardial infarction, repeat revascularization, and definite or probable stent thrombosis. Results: Among the study population, 375 patients (20.5%) underwent intravascular imaging-guided PCI and 1458 patients (79.5%) underwent angiography-guided PCI. Intravascular imaging-guided PCI was associated with a significantly lower risk of 1-year MACE than angiography-guided PCI (19.5% vs 28.2%; HR, 0.59; 95%CI, 0.45-0.77; P < .001), mainly driven by a lower risk of cardiac death (13.7% vs 24.0%; adjusted HR, 0.53; 95%CI, 0.39-0.72; P < .001). These results were consistent in propensity score matching (HR, 0.68; 95%CI, 0.46-0.99), inverse probability weighting (HR, 0.61; 95%CI, 0.45-0.83), and Bayesian analysis (Odds ratio, 0.66, 95% credible interval, 0.49-0.88). Conclusions: In AMI patients with cardiogenic shock, intravascular imaging-guided PCI was associated with a lower risk of MACE at 1-year than angiography-guided PCI, mainly driven by the lower risk of cardiac death. (C) 2024 Sociedad Espanola de Cardiologia. Published by Elsevier Espana, S.L.U. All rights reserved. | Joh, Hyun Sung; Lee, Seung Hun; Jo, Jinhwan; Kim, Hyun Kuk; Lim, Woo-Hyun; Kim, Hack-Lyoung; Seo, Jae-Bin; Chung, Woo-Young; Kim, Sang-Hyun; Zo, Joo-Hee; Kim, Myung-A.; Kim, Min Chul; Kim, Ju Han; Hong, Young Joon; Ahn, Young Keun; Jeong, Myung Ho; Hur, Seung Ho; Kim, Doo Il; Chang, Kiyuk; Park, Hun Sik; Bae, Jang-Whan; Jeong, Jin-Ok; Park, Yong Hwan; Yun, Kyeong Ho; Yoon, Chang-Hwan; Kim, Yisik; Hwang, Jin-Yong; Kim, Hyo-Soo; Hong, David; Kwon, Woochan; Choi, Ki Hong; Park, Taek Kyu; Yang, Jeong Hoon; Bin Song, Young; Hahn, Joo-Yong; Choi, Seung-Hyuk; Gwon, Hyeon-Cheol; Lee, Joo Myung | Seoul Natl Univ, Dept Internal Med, Coll Med, Seoul, South Korea; Seoul Natl Univ, Coll Med, Cardiovasc Ctr, Boramae Med Ctr, Seoul, South Korea; Chonnam Natl Univ, Chonnam Natl Univ Hosp, Med Sch, Div Cardiol,Dept Internal Med,Heart Ctr, Gwangju, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Heart Vasc Stroke Inst, Seoul, South Korea; Chosun Univ, Coll Med, Chosun Univ Hosp, Dept Internal Med, Gwangju, South Korea; Univ Chosun, Chosun Univ Hosp, Coll Med, Cardiovasc Ctr, Gwangju, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Internal Med, Daegu, South Korea; Inje Univ, Coll Med, Dept Cardiol, Haeundae Baek Hosp, Busan, South Korea; Catholic Univ Korea, Seoul St Marys Hosp, Coll Med, Div Cardiol,Dept Internal Med, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Internal Med, Daegu, South Korea; Chungbuk Natl Univ, Coll Med, Dept Internal Med, Cheongju, South Korea; Chungnam Natl Univ, Chungnam Natl Univ Hosp, Coll Med, Daejeon, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Changwon Hosp, Chang Won, South Korea; Wonkwang Univ Hosp, Dept Internal Med, Iksan, South Korea; Seoul Natl Univ, Bundang Hosp, Dept Internal Med, Seongnam SI, Gyeonggi Do, South Korea; Seoul Natl Univ, Bundang Hosp, Cardiovasc Ctr, Seongnam Si, Gyeonggi Do, South Korea; Chonbuk Natl Univ, Chonbuk Natl Univ Hosp, Med Sch, Dept Internal Med, Jeonju, South Korea; Chonbuk Natl Univ, Chonbuk Natl Univ Hosp, Cardiovasc Ctr, Med Sch, Jeonju, South Korea; Gyeongsang Natl Univ, Sch Med, Gyeongsang Natl Univ Hosp, Dept Internal Med, Jinju, South Korea; Seoul Natl Univ Hosp, Dept Internal Med, Seoul, South Korea; Seoul Natl Univ Hosp, Cardiovasc Ctr, Seoul, South Korea | Hahn, Joo-Yong/AAU-7250-2020; Song, Young Bin/IYJ-6953-2023; Lee, Seung/AAW-6430-2021; Kim, Min Chul/IYJ-9897-2023; choi, sun ryoung/AGZ-1893-2022; Kim, Hack-Lyoung/AAL-5038-2020; Kim, Sang-Hyun/J-5402-2012; Yun, Kyeong Ho/IYS-8810-2023; Lee, Seung Eun/ABG-1607-2021; Kim, Hyo/J-2753-2012 | drone80@hanmail.net; | REVISTA ESPANOLA DE CARDIOLOGIA | REV ESP CARDIOL | 1885-5857 | 77 | 12 | SCIE | CARDIAC & CARDIOVASCULAR SYSTEMS | 2024 | 4.9 | 18.5 | 1 | Acute myocardial infarction; Cardiogenic shock; Intravascular imaging; Percutaneous coronary intervention | ULTRASOUND; OUTCOMES | English | 2024 | 2024-12 | 10.1016/j.rec.2024.03.009 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Lost in the curve: Investigating the disappearing knots in blazar 3C 454.3 | One of the most well-known extragalactic sources in the sky, quasar 3C 454.3, shows a curved parsec-scale jet that has been exhaustively monitored with very-long-baseline interferometry (VLBI) over the recent years. In this work, we present a comprehensive analysis of four years of high-frequency VLBI observations at 43 GHz and 86 GHz, between 2013-2017, in total intensity and linear polarization. The images obtained from these observations enabled us to study the jet structure and the magnetic field topology of the source on spatial scales down to 4.6 parsec in projected distance. The kinematic analysis reveals the abrupt vanishing of at least four new superluminal jet features in a characteristic jet region (i.e., region C), which is located at an approximate distance of 0.6 milliarcsec from the VLBI core. Our results support a model in which the jet bends, directing the relativistic plasma flow almost perfectly toward our line of sight, co-spatially with the region where components appear to stop. | Traianou, Efthalia; Krichbaum, Thomas P.; Gomez, Jose L.; Lico, Rocco; Paraschos, Georgios Filippos; Cho, Ilje; Ros, Eduardo; Zhao, Guang-Yao; Liodakis, Ioannis; Dahale, Rohan; Toscano, Teresa; Fuentes, Antonio; Foschi, Marianna; Casadio, Carolina; Macdonald, Nicholas; Kim, Jae-Young; Hervet, Olivier; Jorstad, Svetlana; Lobanov, Andrei P.; Hodgson, Jeffrey; Myserlis, Ioannis; Agudo, Ivan; Zensus, Anton J.; Marscher, Alan P. | Inst Astrofis Andalucia IAA CSIC, Glorieta Astron S-N, Granada 18008, Spain; Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany; INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy; Boston Univ, Inst Astrophys Res, 725 Commonwealth Ave, Boston, MA 02215 USA; St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia; Kyungpook Natl Univ, Dept Astron & Atmospher Sci, Daegu 702701, South Korea; Sejong Univ, Dept Phys & Astron, 209 Neungdong Ro, Seoul 05006, South Korea; Fdn Res & Technol Hellas, Inst Astrophys, Voutes 7110, Heraklion, Greece; Univ Crete, Dept Phys, Iraklion 71003, Greece; Inst Radioastron Millimetr, Ave Divina Pastora 7,Local 20, Granada 18012, Spain; Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA; Univ Turku, Finnish Ctr Astron ESO, Piikkio 20014, Finland; Univ Mississippi, Dept Phys & Astron, University, MS 38677 USA | Gómez, José/C-4195-2008; 韓之強, Chih/AAZ-8498-2020; Liodakis, Ioannis/F-7582-2017; Myserlis, Ioannis/MCY-5944-2025; Lico, Rocco/L-8308-2019; Agudo, Ivan/G-1701-2015; Fuentes, Antonio/R-3900-2019; Toscano Domingo, Teresa/ITV-2430-2023; Ros, Eduardo/B-1014-2015; Lobanov, Andrei/G-5891-2014; Jorstad, Svetlana/AAM-3279-2021; Gomez, Jose L./C-4195-2008; Kim, Jae-Young/IUO-6466-2023; Casadio, Carolina/AAH-5524-2021; Toscano, Teresa/ITV-2430-2023 | 57204824800; 7004015011; 7402094981; 55363924100; 57224966143; 57203071154; 7102531000; 55478882500; 56866353000; 57274820700; 57702184700; 56699569900; 58079527600; 54977749000; 56842396800; 57211836467; 55541845400; 59785012300; 7101957568; 55622269600; 55917789200; 55385524500; 58811142600; 7004154914 | ASTRONOMY & ASTROPHYSICS | ASTRON ASTROPHYS | 0004-6361 | 1432-0746 | 682 | SCIE | ASTRONOMY & ASTROPHYSICS | 2024 | 5.8 | 18.5 | 1.07 | 2025-05-07 | 5 | 5 | black hole physics; galaxies: active; galaxies: jets; galaxies: magnetic fields; galaxies: nuclei; quasars: supermassive black holes | ACTIVE GALACTIC NUCLEI; RELATIVISTIC MAGNETOHYDRODYNAMIC SIMULATIONS; SPACE-TELESCOPE OBSERVATIONS; GAMMA-RAY OUTBURSTS; PARSEC-SCALE JETS; BLACK-HOLE MASS; SYNCHROTRON EMISSION; MAGNETIC-FIELD; BRIGHTNESS TEMPERATURE; LINEAR-POLARIZATION | Black hole physics; Galaxies: active; Galaxies: jets; Galaxies: magnetic fields; Galaxies: nuclei; Quasars: supermassive black holes | Black holes; Gravitation; Magnetic fields; Radio astronomy; Stars; Black Hole physics; Comprehensive analysis; Extragalactic sources; Galaxies active; Galaxies jets; Galaxies: magnetic fields; Galaxies:Nuclei; Quasar: supermassive black hole; Supermassive black holes; Very long baseline interferometry; Galaxies | English | 2024 | 2024-02-15 | 10.1051/0004-6361/202347267 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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