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Search Results: 1 - 10 of 10123 matches for " Seong-Joo Kang "
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International Comparative Case Study of High School Students about Empathy  [PDF]
Heesun Yang, Jung-Eun Park, Ji Hye Kim, Seong-Joo Kang
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.102013
Abstract: In this study, we attempted to investigate the empathy ability of Korean adolescents. Davis’ Interpersonal Reactivity Index was applied to 1155 high school students in Korea, and the results were compared with those obtained from the survey of the American and Dutch students with similar ages. As a result, high school students in Korea had higher cognitive empathy than other countries. But, in cognitive empathy, Fantasy (FN) was lower than Perspective Taking (PT), unlike other countries. The mean score of women in all empathy subscales was higher than that of men. And there is significant difference between humanities and natural science high school students in PT, Empathic Concern (EC) and Personal Distress (PD). However, in the comparison of mean score’s effect size and correlation in the subscales of the empathetic scale, it was confirmed as an unstable structure in PD. Therefore, there is a need to educationally discuss how to improve this limitation of measuring empathy in the further research.
Decastronema kotori gen. nov., comb. nov.: a mat-forming cyanobacterium on Cretaceous carbonate platforms and its modern counterparts
Golubic Stjepko,Radoi?i? Rajka,Seong-Joo Lee
Carnets de Géologie , 2006,
Abstract: The fossil renamed here was first described in 1959 as Aeolisaccus kotori Radoi i , a new species of a problematic fossil worm, Aeolisaccus Elliott. In 1975 De Castro recognized the true relationships of this microbial fossil: a cyanobacterium related closely to the modern genus Scytonema. The fossil is common in the sediments of the Mesozoic carbonate platforms of southern Europe. This contribution confirmed De Castro's interpretation, determined, using the high resolution of the SEM, the extent to which these fossils have preserved their original architecture, and investigated their presumed modern counterparts among the abundant mat-forming species of Scytonema on the intertidal flats of Andros Island, a part of the Bahama carbonate platform. The systematic affinities of the fossil and the environments it inhabited were reconstructed by comparing the morphology of the fossils to that of their modern counterparts, along with their respective sedimentary contexts. Based on these comparisons, we conclude that the organism lived in a peritidal environment and was buried and fossilized in the shallow waters of an ancient carbonate platform. A formal transfer of the fossil to a new genus of fossil cyanobacteria thereby designated as Decastronema gen. nov. is proposed, honoring the contribution of Prof. Piero De Castro to paleontology.
Effects of Light Intensity and Nitrogen Starvation on Glycerolipid, Glycerophospholipid, and Carotenoid Composition in Dunaliella tertiolecta Culture
So-Hyun Kim, Kwang-Hyeon Liu, Seok-Young Lee, Seong-Joo Hong, Byung-Kwan Cho, Hookeun Lee, Choul-Gyun Lee, Hyung-Kyoon Choi
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0072415
Abstract: Time-course variation of lipid and carotenoid production under high light (300 μE/m2s) and nitrogen starvation conditions was determined in a Dunaliella tertiolecta strain. Nanoelectrospray (nanoESI) chip based direct infusion was used for lipid analysis and ultra-performance liquid chromatography (UPLC) coupled with a photodiode array (PDA) or atmospheric chemical ionization mass spectrometry (APCI-MS) was used for carotenoid analysis. A total of 29 lipids and 7 carotenoids were detected. Alterations to diacylglyceryltrimethylhomoserine (DGTS) and digalactosyldiacylglycerol (DGDG) species were significant observations under stress conditions. Their role in relation to the regulation of photosynthesis under stress condition is discussed in this study. The total carotenoid content was decreased under stress conditions, while ?-carotene was increased under nitrate-deficient cultivation. The highest productivity of carotenoid was attained under high light and nitrate sufficiency (HLNS) condition, which result from the highest level of biomass under HLNS. When stress was induced at stationary phase, the substantial changes to the lipid composition occurred, and the higher carotenoid content and productivity were exhibited. This is the first report to investigate the variation of lipids, including glycerolipid, glycerophospholipid, and carotenoid in D. tertiolecta in response to stress conditions using lipidomics tools.
OsLIC, a Novel CCCH-Type Zinc Finger Protein with Transcription Activation, Mediates Rice Architecture via Brassinosteroids Signaling
Lei Wang, Yunyuan Xu, Cui Zhang, Qibin Ma, Se-Hwan Joo, Seong-Ki Kim, Zhihong Xu, Kang Chong
PLOS ONE , 2008, DOI: 10.1371/journal.pone.0003521
Abstract: Rice architecture is an important agronomic trait and a major limiting factor for its high productivity. Here we describe a novel CCCH-type zinc finger gene, OsLIC (Oraza sativa leaf and tiller angle increased controller), which is involved in the regulation of rice plant architecture. OsLIC encoded an ancestral and unique CCCH type zinc finge protein. It has many orthologous in other organisms, ranging from yeast to humane. Suppression of endogenous OsLIC expression resulted in drastically increased leaf and tiller angles, shortened shoot height, and consequently reduced grain production in rice. OsLIC is predominantly expressed in rice collar and tiller bud. Genetic analysis suggested that OsLIC is epistatic to d2-1, whereas d61-1 is epistatic to OsLIC. Interestingly, sterols were significantly higher in level in transgenic shoots than in the wild type. Genome-wide expression analysis indicated that brassinosteroids (BRs) signal transduction was activated in transgenic lines. Moreover, transcription of OsLIC was induced by 24-epibrassinolide. OsLIC, with a single CCCH motif, displayed binding activity to double-stranded DNA and single-stranded polyrA, polyrU and polyrG but not polyrC. It contains a novel conserved EELR domain among eukaryotes and displays transcriptional activation activity in yeast. OsLIC may be a transcription activator to control rice plant architecture.
Ischemic colitis after mesotherapy combined with anti-obesity medications
Jong Bin Kim, Won Moon, Seun Ja Park, Moo In Park, Kyu-Jong Kim, Jae Nam Lee, Seong Joo Kang, Lee La Jang, Hee Kyung Chang
World Journal of Gastroenterology , 2010,
Abstract: Mesotherapy and anti-obesity medications are gradually gaining worldwide popularity for purposes of body contouring and weight loss. Their adverse effects are various, but there is a tendency to disregard them. Ischemic colitis is one of the most common diseases associated with non-obstructive blood vessel disorders. However, there have been no case reports about the adverse effects resulting from mesotherapy only or in combination with anti-obesity medications. We report on an interesting case of ischemic colitis after mesotherapy combined with anti-obesity medications in a 39-year-old female who had no risk factors.
Neurolymphomatosis of Brachial Plexus in Patients with Non-Hodgkin's Lymphoma
Yong Jun Choi,Jung A. Shin,Yong Hoon Kim,Soon Joo Cha,Joong-Yang Cho,Seung Hee Kang,Seong Yoon Yi,Hye Ran Lee
Case Reports in Oncological Medicine , 2013, DOI: 10.1155/2013/492329
Abstract: Neurolymphomatosis (NL) is a rare clinical disease where neoplastic cells invade the cranial nerves and peripheral nerve roots, plexus, or other nerves in patients with hematologic malignancy. Most NL cases are caused by B-cell non-Hodgkin’s lymphoma (NHL). Diagnosis can be made by imaging with positron emission tomography (PET) and magnetic resonance imaging (MRI). We experienced two cases of NL involving the brachial plexus in patients with NHL. One patient, who had NHL with central nervous system (CNS) involvement, experienced complete remission after 8 cycles of R-CHOP (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone) chemotherapy but relapsed into NL of the brachial plexus 5 months later. The other patient, who suffered from primary central nervous system lymphoma (PCNSL), had been undergoing chemoradiotherapy but progressed to NL of the brachial plexus. 1. Introduction Neurolymphomatosis (NL) is the term for nerve infiltration by neurotropic neoplastic cells in non-Hodgkin’s lymphoma (NHL) or acute leukemia [1]. Although the precise incidence is not known, it is estimated to occur in about 0.2% of all NHL patients [1]. NL can occur as a primary presentation of NHL but is more often seen when lymphoma disseminates into the peripheral nervous system from systemic sites or the CNS [2]. The presenting symptoms are diverse, depending on the sites involved. Diagnosis can be difficult since NL may mimic many conditions, and a clinical or histopathological diagnosis may not be established until biopsy. For the diagnosis, parallel use of magnetic resonance imaging (MRI) and positron emission tomography-computed tomography (PET-CT) can be effective, though biopsy of the involved structure is the gold standard method for diagnosis. PET-CT in particular appears to be a highly sensitive tool to diagnose NL [2, 3]. We report here on two cases of NL that developed in the brachial plexus, diagnosed by MRI and PET-CT. 2. The Case Report Case 1. A 60-year-old male patient came to the hospital complaining of right shoulder and upper arm pain with weakness that had appeared a month before. He had been diagnosed with stage IV diffuse large B-cell lymphoma (DLBCL) of the prostate 6 months previously. At the time when he was diagnosed with lymphoma, it had spread to the whole body, involving cranial nerves III, V, and VI. After 8 cycles of systemic chemotherapy with a R-CHOP regimen and intrathecal chemotherapy, he achieved complete remission and was free from disease until the right shoulder pain developed. In neurologic examination, measurement
Effect of SiC-Impurity Layer and Growth Temperature on MgB2 Superconducting Tapes Fabricated by HPCVD
Mahipal Ranot,Won Kyung Seong,Soon-Gil Jung,Won Nam Kang,J Joo,C-J Kim,B-H Jun,S. Oh
Physics , 2011,
Abstract: The influence of SiC-impurity layer and growth temperature on microstructure and superconducting properties were studied for MgB2 superconducting tapes. The pulsed laser deposition (PLD) system was used for the deposition of amorphous SiC-impurity layers on the flexible metallic Cu (001) tapes. The MgB2 superconducting tapes were fabricated by growing MgB2 films on the top of SiC/Cu tapes over a wide temperature range of 460 - 600 {\deg}C by using hybrid physical-chemical vapor deposition (HPCVD) system. Among all tapes, the MgB2/SiC/Cu tape deposited at a temperature of 540 {\deg}C has the highest Tc of ~ 37.7 K. Scanning electron microscopy (SEM) images revealed the hexagonal shaped MgB2 grains with good connectivity, and their sizes were found to vary with growth temperatures. As compared to MgB2/Cu tapes, the MgB2/SiC/Cu tapes exhibited opposite trend in the dependence of critical current density (Jc) with deposition temperatures. The improved Jc (H) behavior could be explained on the basis of the enhanced flux pinning force density (Fp) for MgB2/SiC/Cu tapes upon increasing growth temperature.
A New Species of the Genus Alloclubionoides Paik, 1992 (Araneae: Agelenidae) from Korea  [PDF]
Joo-Pil Kim, Seong-Hun Ye
Open Journal of Animal Sciences (OJAS) , 2014, DOI: 10.4236/ojas.2014.43017
Abstract: In the present paper, the authors describe one new species of the family Agelenidae from Korea, named Alloclubionoides persona sp. nov. This specimen is deposited at the Joo-Pil Spider Museum, Namyangju-Si, Kyunggi-Do.
Proteomic analysis of pregnancy-related proteins from pig uterus endometrium during pregnancy
Jung-Il Chae, Jumi Kim, Seong G Lee, Young-Joo Jeon, Dong-Wook Kim, Yunjo Soh, Kang S Seo, Hak K Lee, Nag-Jin Choi, Joohyun Ryu, Sunghyun Kang, Seong-Keun Cho, Dong-Seok Lee, Hyung M Chung, and Koo
Proteome Science , 2011, DOI: 10.1186/1477-5956-9-41
Abstract: In mammalian reproduction, many important events, including the transport and final maturation of female and male gametes, fertilization, embryonic development, and transport of the embryo to the uterus, occur within the female reproductive tract, especially within the oviduct and uterus. Successful implantation and maintenance of pregnancy requires synchrony between embryonic development and the establishment of reciprocal interactions between the conceptus (embryo/fetus and associated extraembryonic membranes) and endometrium [1,2].The endometrium is a plastic tissue in which cells undergo a variety of adaptation reactions in response to the physiological changes that occur in the different phases of the cycle and during embryo implantation. The endometrium is composed of three histologically distinct layers: stratum basalis (deepest layer), stratum spongiosum (intermediate layer) and stratum compactum (thinner, most superficial layer) [3]. Unlike most normal adult tissues, the functional layer of the uterine endometrium undergoes cyclical growth and tissue remodeling throughout the reproductive years. This remodeling process of endometrial tissue is regulated by several factors, such as the ovarian steroids, various cytokines and growth factors, which influence endometrial differentiation and function, pregnancy recognition signaling, uterine receptivity for blastocyst implantation, and conceptus-uterine interactions. Tissue remodeling shares features with the repair of mucosal injury, characterized by a migratory phenotype with specialized cytoskeletal and matrix-receptor reorganizations and specialized matrix-dependent signaling patterns [4-6].Human implantation begins when the blastocyst assumes a fixed position in the uterus and establishes a more intimate relationship with the endometrium. For this relationship to be established, an ordered succession of events must occur [7,8]. However, investigation of the events occurring after implantation to maintain pr
Seasonal Dynamics of Nutrient Loading and Chlorophyll A in a Northern Prairies Reservoir, Saskatchewan, Canada  [PDF]
Markus Hecker, Jong Seong Khim, John P. Giesy, Su-Qing Li, Joo-Hyung Ryu
Journal of Water Resource and Protection (JWARP) , 2012, DOI: 10.4236/jwarp.2012.44021
Abstract: Harmful algae blooms have become an increasing concern in context with the safety of water resources around the globe; however, little is known about the dynamics and specific causes of such blooms in the prairie ecozone in North America. The aim of this study was to research the nitrogen (N) and phosphorous (P) content and nutrient limitation (defined as N and P limitation) of growth of cyanobacteria in a northern prairies reservoir (Lake Diefenbaker [LD], SK, Canada). A combination of concentration balance analysis for N and P, controlled bioassays with the natural consortium of phytoplankton or defined monocultures of cyanobacteria, and satellite imagery was applied to address this aim. The current trophic status of Lake Diefenbaker is one of moderate eutrophication. Primary production in the lake is P-limited, and N did not represent a limiting factor for algal production. There was no significant increase in TP con- centrations between the upper and lower portions of the reservoir, indicating that most of the phosphorus in LD comes from upstream sites in Alberta. Anabaena circinalis, a species that has the potential to seriously degrade lake ecosys- tems, was identified as the predominant cyanobacteria in LD. Together with the fact that TP influxes into the reservoir primarily originate from upstream sources, these results suggest the need for remedial measures in the upstream reach of the South Saskatchewan River. Satellite imaging represented a promising approach in support of monitoring for po- tential algal blooms in LD; however, due to limited sensitivity and issues associated with atmosphere interference this methodology should only be used in combination with in situ water quality monitoring. In summary, while this study indicated that Lake Diefenbaker is potentially at risk with cyanobacteria blooms (some of which such as Anabena sp. that can produce toxins) during late summer and fall, development of clear causal relationships and risk assessment strategies is currently limited due to lack of monitoring data and programs.
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