• 제목/요약/키워드: J.S.P.

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한국산 날치과 (Beloniformes, Exocoetidae) 어류 5종의 분류학적 재검토 (Taxonomic Review of the Five Flyingfishes (Beloniformes, Exocoetidae) from Korea)

  • 김진구;유정화;조선형;명정구;강충배;김용억;김종만
    • 한국어류학회지
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    • 제13권2호
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    • pp.100-110
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    • 2001
  • 한국 남부해 및 제주도 주변해역에서 1996~1998년의 3년간 채집된 날치류 5종, Parexocoetus mento (Valenciennes), Cheilopogon agoo (Temminck et Schlegel), Cheilopogon heterurus doederleini (Steindachner), Cheilopogon cyanopterus (Valenciennes), Hirundichthys oxycephalus (Bleeker)에 대하여 분류학적 위치를 재검토하였다. Parexocoetus mento 및 Cheilopogon cyanopterus는 국내에서 처음으로 보고되는 종으로 P. mento는 "멘토황날치", C. cyanopterus는 "기점날치"로 명명하였다. P. mento는 유어기에 아래턱 선단에 돌기를 가지지 않는 점에서 황날치 P. brachypterus와 잘 구별되며, C. cyanopterus는 날치 Cheilopogon agoo와는 가슴지느러미줄기의 분지형태, 전력날치 Cheilopogon heterurus doederleini와는 등지느러미 줄기수 및 가슴지느러미 색깔에서 잘 구별된다. 본 조사에서 날치과 어류는 우리나라 제주도 주변해역에서 남부해에 걸쳐 6월부터 9월까지 출현하는 것으로 나타났다.

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RELATIONS BETWEEN THE ITO PROCESSES

  • Choi, Won
    • 대한수학회논문집
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    • 제10권1호
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    • pp.207-213
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    • 1995
  • Let $(\Omega, F, P)$ be a probability space with F a $\sigma$-algebra of subsets of the measure space $\Omega$ and P a probability measure on $\Omega$. Suppose $a > 0$ and let $(F_t)_{t \in [0,a]}$ be an increasing family of sub-$\sigma$-algebras of F. If $r > 0$, let $J = [-r,0]$ and $C(J, R^n)$ the Banach space of all continuous paths $\gamma : J \to R^n$ with the sup-norm $\Vert \gamma \Vert = sup_{s \in J}$\mid$\gamma(s)$\mid$$ where $$\mid$\cdot$\mid$$ denotes the Euclidean norm on $R^n$. Let E,F be separable real Banach spaces and L(E,F) be the Banach space of all continuous linear maps $T : E \to F$.

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Lebesgue-Stieltjes Measures and Differentiation of Measures

  • Jeon, Won-Kee
    • 호남수학학술지
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    • 제8권1호
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    • pp.51-74
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    • 1986
  • The thery of measure is significant in that we extend from it to the theory of integration. AS specific metric outer measures we can take Hausdorff outer measure and Lebesgue-Stieltjes outer measure connecting measure with monotone functions.([12]) The purpose of this paper is to find some properties of Lebesgue-Stieltjes measure by extending it from $R^1$ to $R^n(n{\geq}1)$ $({\S}3)$ and differentiation of the integral defined by Borel measure $({\S}4)$. If in detail, as follows. We proved that if $_n{\lambda}_{f}^{\ast}$ is Lebesgue-Stieltjes outer measure defined on a finite monotone increasing function $f:R{\rightarrow}R$ with the right continuity, then $$_n{\lambda}_{f}^{\ast}(I)=\prod_{j=1}^{n}(f(b_j)-f(a_j))$$, where $I={(x_1,...,x_n){\mid}a_j$<$x_j{\leq}b_j,\;j=1,...,n}$. (Theorem 3.6). We've reached the conclusion of an extension of Lebesgue Differentiation Theorem in the course of proving that the class of continuous function on $R^n$ with compact support is dense in $L^p(d{\mu})$ ($1{\leq$}p<$\infty$) (Proposition 2.4). That is, if f is locally $\mu$-integrable on $R^n$, then $\lim_{h\to\0}\left(\frac{1}{{\mu}(Q_x(h))}\right)\int_{Qx(h)}f\;d{\mu}=f(x)\;a.e.(\mu)$.

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Cytotoxic and antioxidant properties of four plants belonging to the genus Solanum

  • Dongre, Santoshkumar H.;Badami, Shrishailappa;Godavarthi, Ashok;S., Mahendran;P., Vijayan;B., Suresh
    • Advances in Traditional Medicine
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    • 제8권1호
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    • pp.86-92
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    • 2008
  • The aim of the study was to evaluate in vitro antioxidant and cytotoxic activities of the methanolic extracts of leaves of Solanum sisymbrifolium, Solanum anguivi multiflora, Solanum barbisetum and Solanum jasminoides. In the in vitro antioxidant screening using ABTS [2,2'-azino-bis (3-ethylbenzo-thiazoline-6-sulphonic acid) diammonium salt] method, the methanol extracts of Solanum jasminoides, Solanum barbisetum and Solanum anguivi multiflora exhibited potent antioxidant activity with $IC_{50}$ values 31.25 $\pm$ 0.35, 40.33 $\pm$ 0.57 and 54.33 $\pm$ 0.57 ${\mu}g$/ml, respectively. Solanum barbisetum also showed potent activity in DPPH [1,1-diphenyl-2-picryl hydrazyl] method with an $IC_{50}$ value of 55.33 $\pm$ 1.66 ${\mu}g/ml. In the cytotoxicity studies, the methanol extract of Solanum barbisetum exhibited moderate activity against Vero, HEp-2, HeLa and A-549 cell lines with $IC_{50}$ values in the range of 83.30 - 127.30 ${\mu}g$/ml. Solanum anguivi multiflora extract also showed moderate activity against Hep-2 cell line with $IC_{50}$ value of 80.13 ${\mu}g$/ml. Solanum barbisetum possessing both the activities requires further investigation.

동진강 정읍천 유역 오염부하량 평가 (Assessment of Pollutant Loads for Water Enhancement in the Jeongeupcheon of Dongjin River)

  • 이경보;김종천;박지혜;이덕배;김종구
    • 한국환경농학회지
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    • 제23권1호
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    • pp.41-46
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    • 2004
  • 하천 수질관리 대안을 제시하고자 동진강에 영향을 가장 크게 미치는 정읍천을 대상으로 2002년 1월부터 2003년 12월까지 점 및 비점 오염원으로부터 수질오염물질의 부하량, 유출경로 등을 평가하였다. 계절별 수질 변화는 pH범위가 $6.87{\sim}7.53$으로 봄의 pH 범위가 컸으며, EC 농도는 정읍천 중류가 높았으며, 상류유역은 $83{\sim}95\;{\mu}s/cm$ 범위를 나타냈고, 계절별로 가을에 $517\;{\mu}/cm$로 가장 높았다. BOD의 농도는 상류유역에서 $0.61{\sim}1.27\;mg/L$로 I 급수 수질을 나타내었으나, 중류와 하류에서는 III등급 수준이었다. T-N의 농도는 정읍천 중류 유역이 $6.10{\sim}10.84\;mg/L$로 가장 높았고, T-P의 농도는 타 오염물질에 비해 농도의 편차가 컸으며, 특히 중류에서 T-P의 농도가 $0.41{\sim}0.98\;mg/L$로 높았다. BOD의 배출부하량은 J4 유역에서 553 kg/day로 가장 많았고 T-N 발생부하량은 가축, 인구, 토지이용, 산업의 순으로 켰으며, T-N 배출부하량은 인구 및 산업에 의한 것은 J4 유역, 가축과 토지이용에 의한 부하량은 J5, J6유역에서 높았다. T-N의 유달부하량은 하류 유역에서 높았으며, T-P의 유달 부하량은 BOD, T-N에 비하여 유달부하량이 낮았고 유달율은 $6{\sim}38%$ 범위를 나타냈다.

The Effects of Dietary Biotite V Supplementation as an Alternative Substance to Antibiotics in Growing Pigs

  • Chen, Y.J.;Kwon, O.S.;Min, B.J.;Son, K.S.;Cho, J.H.;Hong, J.W.;Kim, I.H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권11호
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    • pp.1642-1645
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    • 2005
  • This study was conducted to investigate the effects of Biotite V supplementation on growth performance, nutrients digestibility and blood constituents and to evaluate whether Biotite V could replace an antibiotics in growing pigs diet. One hundred twenty pigs with initial body weight of 18.35${\pm}$0.15 kg were used in a 28 days growth trial. Pigs were allotted to four treatments by sex and body weight in a randomized complete block design. There were six replicate pens per treatment and five pigs per pen. Four dietary treatments were: 1) NC (basal diet without antibiotics), 2) PC (basal diet+0.1% CTC), 3) NCBV (NC diet+0.5% 200 mesh Biotite V) and 4) PCBV (PC diet+0.5% 200 mesh Biotite V). Through the entire experimental period, ADG tented to increase in NCBV and PCBV treatments compared to NC and PC treatments respectively, but no significant differences were observed (p>0.05). ADFI was slightly lower in NCBV and PCBV treatments than that in NC and PC treatments without significant differences (p>0.05). Gain/feed in PC and PCBV treatments was improved significantly compared to NC treatment (p<0.05). N and Ca digestibilities were higher in PCBV treatments than those in PC treatment (p<0.05). DM and P digestibilities were not affected by the addition of Biotite V (p>0.05). RBC, HCT, Hb, lymphocyte and monocyte were increased numerically in NCBV and PCBV treatments compared to NC and PC treatments (p>0.05). WBC was lower in treatment groups than that in NC treatment, but no significant differences were observed (p>0.05). In conclusion, dietary supplementation of Biotite V can better the gain/feed and some of the nutrients digestibilities in growing pigs. It has a possibility to replace antibiotics in swine diet.

In vitro cytotoxic evaluation of some essential oils

  • P., Vijayan;Godavarthi, Ashok;Chandrashekhar, Raghu;Badami, Shrishilappa;SA, Dhanaraj;B., Suresh
    • Advances in Traditional Medicine
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    • 제3권4호
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    • pp.187-190
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    • 2003
  • Seven essential oils were tested for in vitro cytotoxicity against the cancerous cell lines A-549, HEp-2 and DLA and normal BRL-3A, NRK-49F and Vero cell lines using standard MTT, SRB and dye exclusion techniques. The A-549 cell line was found to be the most susceptible to all the essential oils. The essential oils of A. nilagirica, A. calamus and O. sanctum were found to be the more active against these cells with mean $CTC_{50}$ values of 17.75, 19.00 and $24.37\;{\mu}g/ml$, respectively. The essential oil of Acorus calamus was found to be the most potent with low $CTC_{50}$ values against the cancerous and comparatively higher $CTC_{50}$ values against the normal cell lines. Artemisia pellens and Pelargonium graveolens oils also showed potent activity. These oils merit further investigation to identify the active principles and nature of the anti tumor activity in animal models.