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Joseph Yosup Kim 문학과환경학회 2015 문학과 환경 Vol.14 No.1
Analysis of John Steinbeck’s Group-Men Theory in Light of Thomas Seeley’s Honeybee Democracy Kim, Joseph-Yosup (Kunsan National University) John Steinbeck introduces and deals with a biological concept of “group-men” in his In Dubious Battle. There has been a number of research or related research on exploring Steinbeck’s group-men theory with fish’s collective intelligence (or stupidity) since the 1940s even before the publication of The Log from the Sea of Cortez. However, no one has attempted to analyze such theory with honeybee’s collective intelligence. This study aims to examine group-men theory portrayed in the novel with Thomas Seeley’s Honeybee Democracy. Embodying the group-men theory allows Steinbeck observe the working people as the subject of communal life rather than that of good and evil through Doc Burton’s eyes. Doc Burton is a representative figure of Steinbeck’s non-teleological thinking through whom Steinbeck examines the problems of the existence of humankind and the (im)possibility of reconciliation. Even though Mac takes a role of a scouting bee, he and the community of the working people have failed to minimize the leaders’ influence on the group. This eventually leads to the collapse of the community unlike those so-called harmonious and “democratic” groups of honeybees.
COMPARISON OF THE FIRE SUPPRESSION PERFORMANCE OF HALON REPLACEMENT AGENTS
Kim,Andrew K,Joseph Z,Su 한국화재소방학회 1997 한국화재소방학회 학술대회 논문집 Vol.1997 No.-
HFC-227ea and HCFC Blend A were evaluated using full-scale fire tests to obtain information on their fire suppression performance, drop-in capability, thermal decomposition products and physical behaviour of the agent such as its flow characteristics in the piping system. Also, full-scale tests were conducted with Halon 1301 to provide a basis for comparison. Halon 1301, at concentrations of 5% to 7.5%, showed effective total-flooding fire- extinguishing performance for all test scenarios. HFC-227ea, at a design concentration of 7.6% or higher, and HCFC Blend A, at a design concentration of 12%, extinguished all fires in the test facility, however, these agents produced higher concentrations of acid gases than Halon 1301. The quantity of the acid gases generated during fire suppression was dependent on agent concentration, agent discharge time, fire type and size as well as extinguishment time.
Kim Gyu Ri,Kim Eun-Young,Kim Si Hyun,Lee Hae Kyung,Lee Jaehyeon,Shin Jong Hee,Kim Young Ree,Song Sae Am,Jeong Joseph,Uh Young,Kim Yu Kyung,Yong Dongeun,Kim Hyun Soo,Kim Sunjoo,Kim Young Ah,Shin Kyeong 대한진단검사의학회 2023 Annals of Laboratory Medicine Vol.43 No.1
Background: Streptococcus pneumoniae is a serious pathogen causing various infections in humans. We evaluated the serotype distribution and antimicrobial resistance of S. pneumoniae causing invasive pneumococcal disease (IPD) after introduction of pneumococcal conjugate vaccine (PCV)13 in Korea and investigated the epidemiological characteristics of multidrug-resistant (MDR) isolates. Methods: S. pneumoniae isolates causing IPD were collected from 16 hospitals in Korea between 2017 and 2019. Serotyping was performed using modified sequential multiplex PCR and the Quellung reaction. Antimicrobial susceptibility tests were performed using the broth microdilution method. Multilocus sequence typing was performed on MDR isolates for epidemiological investigations. Results: Among the 411 S. pneumoniae isolates analyzed, the most prevalent serotype was 3 (12.2%), followed by 10A (9.5%), 34 (7.3%), 19A (6.8%), 23A (6.3%), 22F (6.1%), 35B (5.8%), 11A (5.1%), and others (40.9%). The coverage rates of PCV7, PCV10, PCV13, and pneumococcal polysaccharide vaccine (PPSV)23 were 7.8%, 7.8%, 28.7%, and 59.4%, respectively. Resistance rates to penicillin, ceftriaxone, erythromycin, and levofloxacin were 13.1%, 9.2%, 80.3%, and 4.1%, respectively. MDR isolates accounted for 23.4% of all isolates. Serotypes 23A, 11A, 19A, and 15B accounted for the highest proportions of total isolates at 18.8%, 16.7%, 14.6%, and 8.3%, respectively. Sequence type (ST)166 (43.8%) and ST320 (12.5%) were common among MDR isolates. Conclusions: Non-PCV13 serotypes are increasing among invasive S. pneumoniae strains causing IPD. Differences in antimicrobial resistance were found according to the specific serotype. Continuous monitoring of serotypes and antimicrobial resistance is necessary for the appropriate management of S. pneumoniae infections.
Kim, Byoung-Jun,Jeong, Joseph,Lee, Seon Ho,Kim, Sung-Ryul,Yu, Hee-Kyung,Park, Young-Gil,Kim, Ki-Jeong,Kook, Yoon-Hoh,Kim, Bum-Joon Microbiology Society 2012 International journal of systematic and evolutiona Vol.62 No.6
<P>A novel slow-growing, non-chromogenic mycobacterium (strain 01-305<SUP>T</SUP>) was isolated from a patient with pulmonary dysfunction. Growth characteristics, acid-fastness and the results of 16S rRNA gene sequencing supported the placement of this strain within the genus <I>Mycobacterium</I>. Phenotypically, strain 01-305<SUP>T</SUP> was generally similar to <I>Mycobacterium triviale</I> ATCC 23292<SUP>T</SUP>, but some unique biochemical characteristics were observed. The 16S rRNA gene sequence of strain 01-305<SUP>T</SUP> was similar to those of <I>M. triviale</I> ATCC 23290 (GenBank accession no. AY734996, 99.9 % similarity) and <I>M. triviale</I> ATCC 23291 (AY734995, 99.9 %); however, it differed substantially from that of <I>M. triviale</I> ATCC 23292<SUP>T</SUP> (X88924, 98.2 %). Phylogenetic analysis based on 16S rRNA gene sequences placed strain 01-305<SUP>T</SUP> in the slow-growing <I>Mycobacterium</I> group close to <I>M. triviale</I> ATCC 23290 and <I>M. triviale</I> ATCC 23291, but not <I>M. triviale</I> ATCC 23292<SUP>T</SUP>. Unique mycolic acid profiles and phylogenetic analysis based on two different chronometer molecules, and the <I>hsp65</I> and <I>rpoB</I> genes, strongly supported the taxonomic status of this strain as representing a distinct species. These data support the conclusion that strain 01-305<SUP>T</SUP> represents a novel mycobacterial species, for which the name <I>Mycobacterium koreense</I> sp. nov. is proposed. The type strain is 01-305<SUP>T</SUP> ( = DSM 45576<SUP>T</SUP> = KCTC 19819<SUP>T</SUP>).</P>
Kim Si Hyun,Sung Gyung-Hye,Park Eun Hee,Hwang In Yeong,Kim Gyu Ri,송새암,Lee Hae Kyung,Uh Young,Kim Young Ah,Jeong Seok Hoon,Shin Jong Hee,Shin Kyeong Seob,Lee Jaehyeon,Jeong Joseph,Kim Young Ree,Yong Do 대한진단검사의학회 2022 Annals of Laboratory Medicine Vol.42 No.2
Salmonella is one of the major causes of food-borne infections. We investigated the serotype distribution and antimicrobial resistance of Salmonella isolates collected in Korea between January 2016 and December 2017. In total, 669 Salmonella isolates were collected from clinical specimens at 19 university hospitals. Serotyping was performed according to the Kauffmann–White scheme, and antimicrobial susceptibility was tested using Sensititre EUVSEC plates or disk diffusion. Among the strains, C (39.8%) and B (36.6%) were the most prevalent serogroups. In total, 51 serotypes were identified, and common serotypes were S. enterica serovar I 4,[5],12:i:- (16.7%), S. Enteritidis (16.1%), S. Bareilly (14.6%), S. Typhimurium (9.9%), and S. Infantis (6.9%). The resistance rates to ampicillin, chloramphenicol, and trimethoprim-sulfamethoxazole were 32.6%, 12.1%, and 8.4%, respectively. The resistance rates to cefotaxime and ciprofloxacin were 8.1% and 3.0%, respectively, while 5.4% were multidrug-resistant. S. enterica serovar I 4,[5],12:i:- and S. Enteritidis were highly prevalent, and there was an increase in rare serotypes. Multidrug resistance and ciprofloxacin resistance were highly prevalent. Periodic investigations of Salmonella serotypes and antimicrobial resistance are needed.
Kim, Byoung-Jun,Hong, Seok-Hyun,Yu, Hee-Kyung,Park, Young-Gil,Jeong, Joseph,Lee, Seon Ho,Kim, Sung-Ryul,Kim, Kijeong,Kook, Yoon-Hoh,Kim, Bum-Joon International Union of Microbiological Societies 2013 International journal of systematic and evolutiona Vol.63 No.6
<P>A previously undescribed, slowly growing, non-chromogenic <I>Mycobacterium</I> strain (299<SUP>T</SUP>) was isolated from the sputum sample of a patient with a symptomatic pulmonary infection. Phenotypically, strain 299<SUP>T</SUP> was generally similar to <I>Mycobacterium koreense</I> DSM 45576<SUP>T</SUP> and <I>Mycobacterium triviale</I> ATCC 23292<SUP>T</SUP>. The 16S rRNA gene sequence of strain 299<SUP>T</SUP> was similar to that of <I>M. koreense</I> DSM 45576<SUP>T</SUP> (GenBank accession no. AY734996, 99.5 % similarity); however, it differed substantially from that of <I>M. triviale</I> ATCC 23292<SUP>T</SUP> (X88924, 98.2 %). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain 299<SUP>T</SUP> clustered together with <I>M. koreense</I> DSM 45576<SUP>T</SUP> and <I>M. triviale</I> ATCC 23292<SUP>T</SUP>, supported by high bootstrapping values (99 %). Unique mycolic acid profiles and phylogenetic analysis based on two different chronometer molecules, the <I>hsp65</I> and <I>rpoB</I> genes, strongly supported the taxonomic status of this strain as representing a distinct species. These data support the conclusion that strain 299<SUP>T</SUP> represents a novel mycobacterial species, for which the name <I>Mycobacterium parakoreense</I> sp. nov. is proposed. The type strain is 299<SUP>T</SUP> ( = DSM 45575<SUP>T</SUP> = KCTC 19818<SUP>T</SUP>).</P>