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뉴스에 나타난 여성스포츠선수 관련 이슈의 변화: 키워드네트워크 활용
조은혜 ( Eunhye Jo ),김수연 ( Suyeon Kim ),김혜진 ( Hyeoi Jin Kim ) 한국체육대학교 체육과학연구소 2021 스포츠사이언스 Vol.39 No.2
This study aims to utilize keyword network analysis to identify the news article keywords related to female sports players and confirm changes in issues through them. To this study, 2,550 news reports were collected from 2001 to 2021. Keyword network analysis was carried out after dividing four sections: section 1 (2001-2005), section 2 (2006-2010), section 3 (2011-2015), and section 4 (2016-2021). Data processing utilized Ms-Excel and Netminer 4.2 programs to analyze the frequency of keyword and degree centrality. The study results are as follows. Essential keywords related to female sports players include ‘female', ‘female sports players', ‘Yuna Kim', ‘Maria Sharapova', and ‘playful sister'. The change in news issues for female sports players analyzed from a time-series perspective showed no change in content other than the increase in the news. Identical results within keyword network analysis are as follows. First, many news reports on female sports players ‘Michelle Wie West’, ‘Annika Sorenstam’, ‘Serena Williams’ and ‘Yuna Kim’ their annual salary, selection of influential players, and awards are reported. Second, articles on star quality such as ‘Fashion', ‘Dress', ‘Talent', ‘Advertising' or entertainment programs featuring female sports players, such as ‘playful sister', ‘Entertainment', ‘Pak Se-ri', ‘Han Yumi' and ‘playful bro' are reported. This study confirmed that the keywords of articles related to female sports players are limited to sports stars and popularity rather than match results.
Dendritic Cell Dysfunction in Patients with End-stage Renal Disease
Kim, Ji Ung,Kim, Miyeon,Kim, Sinae,Nguyen, Tam Thanh,Kim, Eunhye,Lee, Siyoung,Kim, Soohyun,Kim, Hyunwoo 한국조명·전기설비학회 2017 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>End-stage renal disease (ESRD) with immune disorder involves complex interactions between the innate and adaptive immune responses. ESRD is associated with various alterations in immune function such as a reduction in polymorphonuclear leukocyte bactericidal activity, a suppression of lymphocyte proliferative response to stimuli, and a malfunction of cell-mediated immunity at the molecular level. ESRD also increases patients' propensity for infections and malignancies as well as causing a diminished response to vaccination. Several factors influence the immunodeficiency in patients with ESRD, including uremic toxins, malnutrition, chronic inflammation, and the therapeutic dialysis modality. The alteration of T-cell function in ESRD has been considered to be a major factor underlying the impaired adaptive cellular immunity in these patients. However, cumulative evidence has suggested that the immune defect in ESRD can be caused by an Ag-presenting dendritic cell (DC) dysfunction in addition to a T-cell defect. It has been reported that ESRD has a deleterious effect on DCs both in terms of their number and function, although the precise mechanism by which DC function becomes altered in these patients is unclear. In this review, we discuss the effects of ESRD on the number and function of DCs and propose a possible molecular mechanism for DC dysfunction. We also address therapeutic approaches to improve immune function by optimally activating DCs in patients with ESRD.</P>
Species Specific Antiviral Activity of Porcine Interferon-α8 (IFNα8)
Kim, Eunhye,Jhun, Hyunjhung,Kim, Joohee,Park, Unjoo,Jo, Seunghyun,Kwak, Areum,Kim, Sinae,Nguyen, Tam T.,Kang, Yongsun,Choi, Insoo,Lee, Joongbok,Kim, Heijun,Kim, Younghyun,Lee, Siyoung,Kim, Soohyun 한국조명·전기설비학회 2017 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>Interferons (IFNs) have been known as antiviral genes and they are classified by type 1, type 2, and type 3 IFN. The type 1 IFN consists of IFNα, IFNβ, IFNτ, and IFNω whereas the type 2 IFN consists of only IFNγ, which is a key cytokine driving T helper cell type 1 immunity. IFNλ belongs to the type 3 IFN, which is also known as IL-28 and IL-29 possessing antiviral activities. Type 1 IFN is produced by viral infection whereas type 2 IFN is induced by mitogenic or antigenic T-cell stimuli. The IFNτ of bovine was first discovered in an ungulate ruminant recognition hormone. IFNτ belongs to the type 1 IFN with the common feature of type 1 IFN such as antiviral activity. IFNs have been mostly studied for basic research and clinical usages therefore there was no effort to investigate IFNs in industrial animals. Here we cloned porcine IFNα8 from peripheral blood mononuclear cells of Korean domestic pig (<I>Sus scrofa domestica</I>). The newly cloned IFNα8 amino acid sequence from Korean domestic pig shares 98.4% identity with the known porcine IFNα8 in databank. The recombinant porcine IFNα8 showed potent antiviral activity and protected bovine Madin-Darby bovine kidney epithelial (MDBK) cells from the cytopathic effect of vesicular stomatitis virus, but it failed to protect human Wistar Institute Susan Hayflick (WISH) cells and canine Madin-Darby canine kidney epithelial-like (MDCK) cells. The present study demonstrates species specific antiviral activity of porcine IFNα8.</P>
Kim, Eunhye,Garcia, Adriana,Changani, Hossein Techno-Press 2018 Geomechanics & engineering Vol.14 No.2
Annually, the global production of construction aggregates reaches over 40 billion tons, making aggregates the largest mining sector by volume and value. Currently, the aggregate industry is shifting from sand to hard rock as a result of legislation limiting the extraction of natural sands and gravels. A major implication of this change in the aggregate industry is the need for understanding rock fragmentation and energy absorption to produce more cost-effective aggregates. In this paper, we focused on incorporating dynamic rock and soil mechanics to understand the effects of loading rate and water saturation on the rock fragmentation and energy absorption of three different sandstones (Red, Berea and Buff) with different pore sizes. Rock core samples were prepared in accordance to the ASTM standards for compressive strength testing. Saturated and dry samples were subsequently prepared and fragmented via fast and dynamic compressive strength tests. The particle size distributions of the resulting fragments were subsequently analyzed using mechanical gradation tests. Our results indicate that the rock fragment size generally decreased with increasing loading rate and water content. In addition, the fragment sizes in the larger pore size sample (Buff sandstone) were relatively smaller those in the smaller pore size sample (Red sandstone). Notably, energy absorption decreased with increased loading rate, water content and rock pore size. These results support the conclusion that rock fragment size is positively correlated with the energy absorption of rocks. In addition, the rock fragment size increases as the energy absorption increases. Thus, our data provide insightful information for improving cost-effective aggregate production methods.
Kim, Tae-Hwan,Kim, Eunhye,Do, Changwoo,Ahn, Hyungju,Lee, Hoyeon,Han, Young-Soo American Chemical Society 2016 Macromolecules Vol.49 No.17
<P>Amphiphilic Pluronic block copolymers have attracted great attention in a broad spectrum of potential applications due to the excellent phase behaviors in an aqueous solution, and many efforts have been made to investigate their phase behaviors under various external conditions. With a variety of external conditions, however, the closed looplike phase behaviors of a Pluronic block copolymer in an aqueous solution have not been reported yet. Herein., We report the closed looplike (CLL) phase behavior of a Pluronic P65 triblock copolymer blended with an organic derivative, 5-methylsalicylic acid (5mS), in aqueous solution, which is very unique for block copolymers. As. the 5mS concentration increases), the-isotropic to ordered phase or back to isotropic phase transition temperature is decreased while the number of closed loops is increased to two. To the best of our knowledge, this is the first demonstration of a CLL phase transition of a Pluronic block, copolymer in an aqueous solution, which is readily applicable to optical devices such as optical sensors or optoelectronics, and nanotemplates for a highly, ordered superlattice. Furthermore, this provides new insight into the understanding on the phase:behavior of a Pluronic block copolymer blended with additives.</P>
Kim, Jinwoo,Oh, Jonghee,Choi, Okhee,Kang, Yongsung,Kim, Hongsup,Goo, Eunhye,Ma, Jun,Nagamatsu, Tomohisa,Moon, Jae Sun,Hwang, Ingyu American Society for Microbiology 2009 Journal of Bacteriology Vol.191 No.15
<B>ABSTRACT</B><P><I>Burkholderia glumae</I> produces toxoflavin, a phytotoxin with a broad host range, which is a key virulence factor in bacterial rice grain rot. Based on genetic analysis, we previously reported that ToxR, a LysR-type regulator, activates both the <I>toxABCDE</I> (toxoflavin biosynthesis genes) and <I>toxFGHI</I> (toxoflavin transporter genes) operons in the presence of toxoflavin as a coinducer. Quorum sensing regulates the expression of the transcriptional activator ToxJ that is required for <I>tox</I> gene expression. Here, we used gel mobility shift and DNase I protection analyses to demonstrate that both ToxR and ToxJ bind simultaneously to the regulatory regions of both <I>tox</I> operons. ToxR and ToxJ both bound to the <I>toxA</I> and <I>toxF</I> regulatory regions, and the sequences for the binding of ToxR to the regulatory regions of both <I>tox</I> operons possessed T-N11-A motifs. Following random mutagenesis of <I>toxR</I>, 10 ToxR mutants were isolated. We constructed a reporter strain, S6K34 (<I>toxR</I>′<I>A</I>′::Ω <I>toxF</I>::Tn<I>3</I>-<I>gusA34</I>) to evaluate which amino acid residues are important for ToxR activity. Several single amino acid substitutions identified residues that might be important for ToxR binding to DNA and toxoflavin binding. When various toxoflavin derivatives were tested to determine whether toxoflavin is a specific coinducer of ToxR in the S6K34 strain, ToxR, together with toxoflavin, conferred <I>toxF</I> expression, whereas 4,8-dihydrotoxoflavin did so only slightly. With these results, we have demonstrated biochemically that <I>B. glumae</I> cells control toxoflavin production tightly by the requirement of both ToxJ and toxoflavin as coinducers of ToxR.</P>
Size control and registration of nano-structured thin films by cross-linkable units
Kim, Eunhye,Shin, Changhak,Ahn, Hyungju,Ryu, Du Yeol,Bang, Joona,Hawker, Craig J.,Russell, Thomas P. Royal Society of Chemistry 2008 Soft matter Vol.4 No.3
<P>Thermoset thin films <I>via</I> directed self-assembly, where benzocyclobutene (BCB) groups are incorporated selectively into the one block, have been prepared from cross-linkable block copolymers in a simple process, which allows size controllability and the registration of oriented microdomains in multi-layer applications.</P> <P>Graphic Abstract</P><P>Thermoset thin films <I>via</I> directed self-assembly, prepared from cross-linkable block copolymers, allow size controllability and the registration of oriented microdomains in multi-layer applications. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=b717903k'> </P>