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A Study on the Validity of Proper Maximum Navigation Speed in a Straight Waterway (직전항로에서의 적정 최대속력에 대한 검토.연구)

  • Park Young-Soo;Jong Jae-Yong;Park Jin-Soo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.12 no.2 s.25
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    • pp.139-144
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    • 2006
  • Recently, ships' average navigation speed become faster than before because of the increasing of high-speeds vessel including container ships and passenger-ferries. So, it is considered that the speed limit in the navigation channel in Korea isn't proper for vessel management in these days. Also, there is rare paper studies about the speed limit quantitatively and numerically, especially the speed limit is discussing continuously, as abrogation of Incheon Port's speed limit and alleviation of Gwang-yang Port's speed limit according to the requests by the navigating mariners. Consequently this paper deals with the effectiveness of speed limits using the Environmental Stress Model, after replay of the navigation traffic flow in the straight waterway using marine traffic flow simulation technique.

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Effects of Skater and Sprinter Combined Pattern in PNF on Muscle Contraction Onset Time and Muscle Activation of Trunk Muscle (고유수용성신경근촉진법의 스케이터와 스프린터 통합패턴이 몸통근육의 근활성도와 근수축 개시에 미치는 영향)

  • Kim, Yoonhwan;Lee, Hyoungsoo
    • Archives of Orthopedic and Sports Physical Therapy
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    • v.14 no.2
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    • pp.55-64
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    • 2018
  • Purpose : The purpose of this study was to investigate the effect of the sprinter and skater combined patterns on muscle contraction onset time and muscle activation of body stabilizing muscles. Method : Our study included young and healthy men in their 20s. The participants used the sprinter and skater combined patterns of the proprioceptive neuromuscular facilitation (PNF) methods to measure muscle activation and muscle contraction onset time of the trunk muscles. To measure muscle contraction onset time and muscle activation, electrodes were attached to the rectus abdominis (RA), external oblique (EO), internal oblique (IO), and erector spinalis (ES) regions. Significant differences were identified using a paired t-test and a one-way analysis of variance (ANOVA) analysis. Result : In the sprinter combined pattern, the muscle with the fastest onset time of contraction was the RES, and that with the slowest was the RRA (p<.001). In the skater combined pattern, the muscle with the fastest onset time of contraction was the LES, and that with the slowest was the LRA (p<.001). In the sprinter combined pattern, the REO and LIO presented medium muscle contraction onset times (p<.001). In the skater combined pattern, the LEO and RIO presented medium muscle contraction onset times (p<.001). Conclusions: Based on these results, these patterns could be used as exercise methods for the elderly with delayed proactive response speeds of the body stabilization methods due to imbalances in body stabilizing muscles or limbs movement.

Der Verlust der Amtsfähigkeit bzw. des Wahlrechts und das Gebot der Individualisierung der Strafen (선거범에 대한 자격제한과 형벌개별화원칙)

  • Chung, Kwang-Hyun
    • Journal of Legislation Research
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    • no.53
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    • pp.337-374
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    • 2017
  • Wer wegen eines Wahldelikts zu Geldstrafe von mehr als 1 Million Won verurteilt wird, verliert nach ${\S}$ 18 Abs. 1 Satz 3, ${\S}$ 19 Satz 1, ${\S}$ 266 des Koreanischen Wahlgesetzes $f{\ddot{u}}r$ die Dauer von $f{\ddot{u}}nf$ Jahren die $F{\ddot{a}}higkeit$, ${\ddot{o}}ffentliche$ ${\ddot{A}}mter$ zu bekleiden und Rechte aus ${\ddot{o}}ffentlichen$ Wahlen. Bei Verurteilung zu Freiheitsstrafe wegen eines Wahldelikts ${\ddot{A}}mter$ sich die Dauer des Verlusts der $Amtsf{\ddot{a}}higkeit$ und des aktiven bzw. passiven Walhrechts auf 10 Jahre. Dies erfolgt kraft Gesetzes. Das $hei{\ss}t$, dass die Entscheidung ${\ddot{u}}ber$ das Ob und die Dauer des Verlusts nicht im Ermessen des Gerichts steht. Allerdings sollte $diesbez{\ddot{u}}glich$ nicht verkannt werden, dass ein deratriger Entzug von $Amtsf{\ddot{a}}higkeit$, $W{\ddot{a}}hlbarkeit$ u.s.w., mit dem eine Straftat geahndet werden soll, selber von Natur aus eine Art Strafen darstellt. Der im ${\S}$ 41 des Koreanischen StGB geregelte Strafen-Katalog $enth{\ddot{a}}lt$ $n{\ddot{a}}mlich$ eine zeitlich begrenzte Aberkennung des oben genannten ${\ddot{o}}ffentliche$n Rechtsstatus als eine Art Ehrenstrafen. Nicht einleuchtend ist, warum das Wesen der Sanktion $gem{\ddot{a}}{\ss}$ ${\S}$ 18 Abs. 1 Satz 3, ${\S}$ 19 Satz 1, ${\S}$ 266 des Koreanischen Wahlgesetzes, die den gleichen Zweck und die gleiche Rechtsfolge wie die im ${\S}$ 41 des Koreanischen StGB geregelte Ehrenstrafe hat, nicht als Strafe aufgefasst werden sollte. Handelt es sich bei der oben genannten Sanktion um eine Art Ehrenstrafen, so stellt sich die Anforderung, sie je nach der Eigenart der begangenen Tat bzw. des $T{\ddot{a}}ters$ zu individualisieren. Das Gebot der Individualisierung der Strafen, welches $haupts{\ddot{a}}chlich$ vom materiellen Rechtsstaatsprinzip ableitbar ist, kann im Grunde nur verwirklicht werden, wenn das Gericht dazu befugt ist, unter $Ber{\ddot{u}}cksichtigung$ der konkreten $Umst{\ddot{a}}nde$ jedes Einzelfalls ${\ddot{u}}ber$ eine angemessene Strafe zu befinden. Somit ist der kraft Gesetzes eintretenden Verlust der $Amtsf{\ddot{a}}higkeit$ und der $W{\ddot{a}}hlbarkeit$ nur schwer mit dem Gebot der Individualisierung der Strafen vereinbar. Es $w{\ddot{a}}re$ deshalb $w{\ddot{u}}nschenswert$, wenn der Gesetzgeber eine Reform in Betracht ziehen $w{\ddot{u}}rde$, welche den Ersatz des kraft Gesetzes automatisch eintretenden Entzugs der $Amtsf{\ddot{a}}higkeit$ bzw. des Wahlrechts durch die gerichtliche fakultative Aberkennung von diesen Statusrechten beinhaltet.

Application of Echo-Sounder Monitoring Technique as Ecological Impact Assessments of Fish on Artificial Weir Construction (인공보의 어류생태영향 평가를 위한 Echo-sounder 모니터링 기법 적용)

  • Han, Jeong-Ho;Lee, Jae Hoon;Choi, Ji-Woong;Lim, Byung Jin;Park, Jong-Hwan;An, Kwang-Guk
    • Journal of Environmental Impact Assessment
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    • v.21 no.6
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    • pp.859-877
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    • 2012
  • In this study, Echo-sounder($E_s$) monitoring methodology was applied to test environmental impacts of artificial weirs(SCW and JSW) in the Yeongsan River on fish community and habitat structures at first time, and was compared with conventional fish sampling methodologies($C_s$). For the Es monitoring in the fields, parallel transect methods was employed in determining the survey distance interval with every 125 m within the upper-lower 2 km of the weirs. Four different fish sampling gears such as casting nets, kick nets, fyke nets, and gill nets were used for applications of $C_s$ monitoring methodology. According to the Echo-sounder monitoring, fish density, expressed as a number of individuals per square meter, along the longitudinal axis of the weir was significantly greater(JSW, t = 3.506, n = 30, p < 0.001) in the down-river reach of the weir than in the up-river reach. Also, fish density along the vertical water column was highest at mid-depths of Seungchon weir, which has simple habitat substrates, while fish density was highest at hypolimnetic depth of Juksan weir. According to fish sampling by the $C_s$ methodology, the fish compositions decreased as the river goes upward, and significant differences(JSW, t = 0.248, n = 30, p < 0.05) in the compositions of fish species occurred between up-reach and down-reach of the weirs. The dominant species near the two weirs were Opsarichthys uncirostris amurensis, Hemiculter eigenmanni and Coilia nasus. Overall, our fish and habitat data, based on $E_s$ and $C_s$ monitoring methodologies, suggest that the weirs disturbed the rivers due to initial habitat disturbances by the weir constructions as well as the barrier roles of weirs on fish passage and migrations. More long-term scientific and systematic fish impact monitoring and assessments($E_s$ and $C_s$) are required in the future to predict changes of ecological structures and functions on the constructions of the weirs.

Influence of 3-N-Substituents(R) on the Insecticidal Activities of Imidacloprid and Its Analogous (Imidacloprid와 그 유도체들의 살충활성에 미치는 3N-치환기(R)의 영향)

  • Kang, Moon-Sung;Jang, Hae-Sung;Kim, Dae-Whang;Sung, Nack-Do
    • Applied Biological Chemistry
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    • v.39 no.2
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    • pp.140-146
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    • 1996
  • Imidacloprid and a series of the related compounds were synthesized, and influence of 3-N substituents(R) on the insecticidal activities against Brown plant hopper(Nilaparvata lugens) and Green peach aphid(Myzus persicae) were examined quantitatively from the structure-activities relationships(Shh) techniques. The results indicated that the molecular hydrophobicity$({\pi})$ and inductive substituent constant$({\sigma}^{\ast})$ of substituents(R) at 3-nitrogen position on the imidazolidine ring were important factors. Variations in the potency were parabolically related to the both constants. In case of Brown plant hopper, optimum value of ${\pi}$ constant was 0.52, whereas the value of ${\sigma}^{\ast}$ constant against Green peach aphid was 1.17, respectively. Among them, the strong electron withdrawing groups$({\sigma}^{\ast}>0)$ such as methyl and benzenesulfonyl group(7 & 8) showed lower insecticidal activity and non-substituted, 1(imidacloprid) showed the best insecticidal activity. It seems that the intramolecular associated(H-bond) form between 2-N-nitro group and 3-imid group may contribute to the higher insecticidal activity to the both sucking insects. And in aqueous solution, 1 showed higher residual activity below pH 6.0, and the half-life$(T_{1/2})$ was about 6 month at pH 7.0 $(ca.\;k_{obs.}:5{\times}10^{-8}sec.^{-1})$ and $45^{\circ}C$.

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Zur Sruktur der Nazisprache (나치언어의 구조)

  • Kim Tschong-Young
    • Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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    • v.8
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    • pp.223-245
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    • 2003
  • In dieser Arbeit wird der Versuch unternommen, die Struktur der Nazisprache zu analysieren. Nazisprache hat die Aufgabe, die Ideologie des Nationalsozialisrnus zu rechtfertigen und zu starken. Um diese Aufgabe zu realisieren, haben sich die Nationalsozialisten viel bemuht Im zweiten Abschnitt wird die Charakteristk dieser Sprache $erw\"{a}hnt$ Hier handelt es sich urn den Hintergrund der Nazisprache und Sprachlenkung im Nationalsozialismus. Im Abschnitt drei wird die syntaktische Struktur der Nazisprache beschrieben. Syntaktisch betrachtet, kann man in der Nazisprache $a\"{u}ffallende$ Struktur feststellen, und zwar eine hohe Frequenz von Adjektiv- Attributen, Adverbiale und Superlative. Bei den Adjektivattributen $la{\ss}t$ sich eine Reihe interessanter Entwicklungen beobachten. In vielen $F\"{a}llen$ tendieren die Attributionen zur idiomatischen Verfestigung. Im Bereich des Adverbs finden $auff\"{a}llige$ Verschiebung statt Adverbien $geh\"{o}ren$ zu den wichtigsten Mitteln, um die Haltung des Sprechers $gegen\"{u}ber$ einem $ge\"{a}u{\ss}erten$ Sachverhalt auf die situativen Bedingungen, insbesondere auf die Haltung und Erwartungen der Adressanten, abzustimmen. Und $auff\"{a}lig$ ist die $H\"{a}ufungwie$ beispie!sweise am von Superlativen auf engern Raum. Durch den inflationaren Gebrauch der superlativischen $Ausdr\"{u}cke$ verlieren im $Bewu{\ss}tsein$ des nationalsozialistischen Redners $allm\"{a}hlich$ ihre $F\"{a}higkeit$, den qualitativen Extremwert eines Sachverhalts zu bezeichnen. Deshalb grief vor allem Hitler schon fruh zu starkeren Mitteln, indem er die Gradative des genannten Typs in den Superlativ setzt. Im Abschnitt vier wird die lexikaIische Struktur der Nazisprache beschrieben. Wahrend des Dritten Reiches war die Entwickiung auf den Wortschatz in lexikalischen Bereichen erheblich, wie beispielsweise am Gebrauch der $Modew\"{o}rter$, die sich auf ideologische, dynamische und $milit\"{a}rische$ Terminologie bezogen sind, am Gebrauch $altert\"{u}mlicher$ $W\"{o}rter$ und am Gebrauch von $Fremdw\"{o}rter$. In der Zeit des Natioalsozialismus bedienten sich die NationaIsoziaIisten neben vieIen $Modew\"{o}Iter$ veralteter $W\"{o}Iter$ zur Kennzeichnung von $\"{A}mtern$ und Einheiten, um dem Regime eine historische $Legitimit\"{a}t$ zu verschaffen. Und sie gebrauchten auch $Fremdw\"{o}rter$ sehr haufig, um ihren Reden einen pseudowissenschaftlichen Anstrich zu geben.

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Heart-Model-Based Automated Method for Left Ventricular Measurements in Cardiac MR: Comparison with Manual and Semi-automated Methods (자동화 방식 모델 기반 좌심방 파라미터 측정법: 수동 및 반자동 방식과의 비교)

  • Chae, Seung Hoon;Lee, Whal;Park, Eun-Ah;Chung, Jin Wook
    • Investigative Magnetic Resonance Imaging
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    • v.17 no.3
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    • pp.200-206
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    • 2013
  • Purpose : To assess the effect of applying an automated heart model based measurements of left ventricle (LV) and compare with manual and semi-automated measurements at Cardiovascular MR Imaging. Materials and Methods: Sixty-two patients who underwent cardiac 1.5T MR imaging were included. Steady state free precession cine images of 20 phases per cardiac cycle were obtained in short axis views and both 2-chamber and 4-chamber views. Epicardial and endocardial contours were drawn in manual, automated, and semi-automated ways. Based on these acquired contour sets, the end-diastolic (ED) and end-systolic (ES) volumes, ejection fraction (EF), systolic volume (SV) and LV mass were calculated and compared. Results: In EDV and ESV, the differences among three measurement methods were not statistically significant (P = .399 and .145, respectively). However, in EF, SV, and LV mass, the differences were statistically significant (P=.001, <001, <001, respectively) and the measured value from automated method tend to be consistently higher than the values from other two methods. Conclusion: An automatic heart model-based method grossly overestimate EF, SV and LV mass compared with manual or semi-automated methods. Even though the method saves a considerable amount of efforts, further manual adjustment should be considered in critical clinical cases.

Phylogeny of Ganoderma Based on the Restriction Enzyme Analysis of Mitochondrial DNA (미토콘드리아 DNA의 제한효소 분석법에 의한 영지의 계통분류)

  • Hong, Soon-Gyu;Jung, Hack-Sung
    • Korean Journal of Microbiology
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    • v.32 no.4
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    • pp.245-251
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    • 1994
  • Ten strains of 7 species from the genus Ganoderma, G. lucidum ATCC 64251, FP-103561-T, and ES70701, G. applanatum ATCC 44053 and FP-57035-T. G. lobatum ATCC 42985, G. resinaceum ATCC 52416, G. subamboinense var. laevisporum ATCC 52420, G. meredithae ATCC 64492, and G. microsporum ATCC 76024, were studied to discuss their phylogenetic relationships by utilizing restriction fragment length polymorphisms (RFLPs) of mitochondrial DNAs (mtDNAs). Six restriction enzymes, BamHI, BglII, EcoRI, HindIII, PvuII, and XbaI which digested mtDNAs into adequate numbers of restriction fragments for cluster analysis, were used in this study. Restriction profiles of strains for each restriction enzyme were treated as analysis characters to calculate similarity coefficients, which were converted into nucleotide sequence divergence values whose mean values were then arranged in a matrix table. This table was utilized for a phylogenetic analysis using the Neighborjoining method of the PHYLIP package to construct phylogenetic tree. Three strains of G. lucidum and two strains of G. applanatum exhibited different lineages each but one of G. applanatum strains showed a close relationship with G. lobatum, which reflected the species complexity of these species whose strains were phenotypically indistinguishable but genetically distinct. The present results suggest that the natural classification of Ganoderma needs to be considered from the viewpoints of molecular biology-based systematics as well as morphological classifications and cultural identifications for better phylogenetic conclusions.

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Das Problem der philosophischen Letztbegründung und des Fallibilismus (철학적 최종근거지음과 오류주의의 문제)

  • Yi, Sae-seong
    • Journal of Korean Philosophical Society
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    • v.116
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    • pp.281-312
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    • 2010
  • Der vorliegende Beitrag problematisiert die Zeichen einer Zeit, in der nach der 'Wende des Sprachparadigmas' alle Prozesse einer Posttranszendenz, die in der heutigen philosophischen Problemsituation versucht werden, $bel{\ddot{a}}chelt$ werden, der Relativismus, Partikularismus und Skeptizismus $verst{\ddot{a}}rkt$ wird, und als Resultat die Kritik, Ablehnung und das Desinteresse an der Ideologie der Vernunft und Wahrheit sich verbreitet. Ich werde daher umgekehrt gerade an diesem Punkt ansetzen und ${\ddot{u}}ber$ die Notwendigkeit und Dringlichkeit der Rehabilitierung der "$Realit{\ddot{a}}t$ einer moralischen Vernunft" nachdenken. Zweck dieses Beitrags ist es, in Zusammenhang mit der Rehabilitierung der $Realit{\ddot{a}}t$ einer moralischen Vernunft, aufzuzeigen, welche theoretische Erkenntnis bzw.moralische Erkenntnis wahr ist, d.h., dass ein 'bewiesenes', da 'objektiv gerechtfertigtes' Argument existiert. $Daf{\ddot{u}}r$ werde ich als erstes auf das Problem der Relativistischen und Skeptizistischen Anhaltspunkte philosophisch eingehen(2), zur ${\ddot{U}}berwindung$ dieser Anhaltspunkte eine Rechtfertigung der rationelen und moralischen $Begr{\ddot{u}}ndung$ versuchen(3). In Folge soll betrachtet werden, dass die Rechtfertigung der rational moralischen $Begr{\ddot{u}}ndung$ mit dem Problem der $Letztbegr{\ddot{u}}ndung$ in enger Verbindung steht(4), und nachdem darauf hingewiesen wird, dass dies durch eine Konfrontation mit der Fallibilismus These zu erkenntnistheoretisch objektiver $G{\ddot{u}}ltigkeit$ gelangt(5), werde ich den Beitrag $abschlie{\ss}en$(6).

CRISPR/Cas9-mediated knockout of Rag-2 causes systemic lymphopenia with hypoplastic lymphoid organs in FVB mice

  • Kim, Joo-Il;Park, Jin-Sung;Kim, Hanna;Ryu, Soo-Kyung;Kwak, Jina;Kwon, Euna;Yun, Jun-Won;Nam, Ki-Taek;Lee, Han-Woong;Kang, Byeong-Cheol
    • Laboraroty Animal Research
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    • v.34 no.4
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    • pp.166-175
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    • 2018
  • Recombination activating gene-2 (RAG-2) plays a crucial role in the development of lymphocytes by mediating recombination of T cell receptors and immunoglobulins, and loss of RAG-2 causes severe combined immunodeficiency (SCID) in humans. Rag-2 knockout mice created using homologous recombination in ES cells have served as a valuable immunodeficient platform, but concerns have persisted on the specificity of Rag-2-related phenotypes in these animals due to the limitations associated with the genome engineering method used. To precisely investigate the function of Rag-2, we recently established a new Rag-2 knockout FVB mouse line ($Rag-2^{-/-}$) manifesting lymphopenia by employing a CRISPR/Cas9 system at Center for Mouse Models of Human Disease. In this study, we further characterized their phenotypes focusing on histopathological analysis of lymphoid organs. $Rag-2^{-/-}$ mice showed no abnormality in development compared to their WT littermates for 26 weeks. At necropsy, gross examination revealed significantly smaller spleens and thymuses in $Rag-2^{-/-}$ mice, while histopathological investigation revealed hypoplastic white pulps with intact red pulps in the spleen, severe atrophy of the thymic cortex and disappearance of follicles in lymph nodes. However, no perceivable change was observed in the bone marrow. Moreover, our analyses showed a specific reduction of lymphocytes with a complete loss of mature T cells and B cells in the lymphoid organs, while natural killer cells and splenic megakaryocytes were increased in $Rag-2^{-/-}$ mice. These findings indicate that our $Rag-2^{-/-}$ mice show systemic lymphopenia with the relevant histopathological changes in the lymphoid organs, suggesting them as an improved Rag-2-related immunodeficient model.