• 제목/요약/키워드: $P_388$

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A Method for Improving Anchor Picture Quality of Multiview Video Coding Scheme (다시점 비디오 부호화의 기준 영상 화질 향상 방법)

  • Park, Min-Woo;Park, Jong-Tae;Park, Gwang-Hoon
    • Journal of Broadcast Engineering
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    • v.13 no.3
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    • pp.388-400
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    • 2008
  • This paper introduces a cost-effective method fur improving anchor picture quality of a multiview video coding scheme that is mainly based on chroma compensation. Proposed method is applied to both INTER $16{\times}16$ and SKIP modes in only anchor P-pictures. By testing using JVT common test conditions, simulation results show that proposed method can obtain the average BD-PSNR gains fur U and V as 0.136 dB and 0.127 dB, respectively, while maintaining almost same performance for Y (luminance). For the range of low bit-rates, it is observed that average BD-PSNR gains of Y, U, and V are 0.141 dB, 0.494 dB and 0.525 dB, respectively. Necessary computational complexity is very marginal because the number of anchor P-pictures is only 4.18% in comparison with whole coded sequences, however it can be found that the proposed method can significantly improve the coding efficiencies of color components.

Inhibition of hepatic microsomal drug-metabolizing enzymes by imperatorin

  • Shin, Kuk-Hyun;Woo, Won-Sick
    • Archives of Pharmacal Research
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    • v.9 no.2
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    • pp.81-86
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    • 1986
  • The effect of imperatorin on hepatic microsomal mixed function oxidases (MF0) was investigated. On acute treatment, imperatorin (30 mg/kg, i.p) caused a significant reduction in activities of hepatic aminopyrine N-demethylase, hexobarbital hydroxylase and aniline hydroxylase as well as cytochrome p0450 content in rats and mice. Kinetic studies on rat liver enzymes revealed that imperatorin appeared to be a competitive inhibitor of aminopyrine N-demethylase (Ki,0.007 mM), whereas a non-competitive inhibitor of hexobarbital hydroxylase (Ki, 0.0148 mM). Imperatorin also inhibited non-competitively aniline metabolism (Ki 0.2 mM). Imperatorin binds to phenobarbital-induced cytochrome p-450 to give a typical type 1 binding sepctrum (max. 388nm, min 422 nm). Multiple administrations of imperatorin (30 mg/kg. i. p. daily for 7 days) to mice shortended markedly the duration of hexobarbital narcosis and increased activities of hepatic aminopyrine N-demethylase and hexobarbital hydroxylase and the level of cytochrome p-450 where as aniline hydroxylase activity was unaffected.

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A Meta-analysis of Effectiveness of Kigong Programs for the Physical Health of the Elderly (노인 신체건강을 위한 기공(氣功)프로그램 효과성 메타분석)

  • Kim, Ilsik;Kim, Gyeryung;Lee, Su-kyung;Seo, Hochan
    • 한국노년학
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    • v.38 no.1
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    • pp.65-82
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    • 2018
  • The purpose of this study is to statistically summarize the effect sizes using meta-analysis of various Kigong programs implemented on the subject of physical health of the elderly. Including 23 academic journal studies and 11 thesis studies reported domestically until 2016, a total of 34 studies were selected and analyzed to verify the effect sizes of programs, program types, measuring variables, and activity elements. The findings are as follows. First, it was found that the programs were midium effective with overall average effect size showing .748(p<.001). A program of Tai-Chi indicated the largest effect size of .836(p<.001). In terms of measuring variables, physical strength showed the largest effect size of .806(p<.001). In terms of gender by group, it was found that groups consisting only of men indicated the largest effect size of 2.388(p<.001). As for effect size by group of disease state, normal group with showed the highest effect size of .804(p<.001). Second, in activity elements, 31~60 by the group size has the largest effect size of .873(p<.001), total number of sessions for 31~40 sessions indicated the largest effect value of .829(p<.001). As for number of sessions per week, 5 sessions showed largest effect value of .918(p<.001), in terms of activity time, 50 minutes showed large effect value of 1.391(p<.001). As summarized above, Kigong programs are midium effective for physical health of the elderly, as an activity elements to consider when configuring the program, for group size 31~60, 31~40 sessions in total, 5 sessions per week and 50 minutes per sessions were recommended.

Stability of Ethanolic Extract from Fermented Cirsium setidens Nakai by Bioconversion during Different Storing Conditions (저장조건에 따른 생물전환 발효고려엉겅퀴 주정추출물의 안정성 조사)

  • Lee, Jin-Ha;Moon, Seok-Yong;Cho, Bong-Yeon;Choi, Sun-Il;Jung, Tae-Dong;Choi, Seung-Hyun;Kim, Jong-Dai;Lee, Ok-Hwan
    • The Korean Journal of Food And Nutrition
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    • v.30 no.2
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    • pp.388-394
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    • 2017
  • This study investigated the stability of ethanolic extract from fermented Cirsium setidens Nakai (FCSN) in order to develop functional materials during different storage conditions. We evaluated pectolinarin and pectolinarigenin contents, total phenol content and antioxidant activity (DPPH radical scavenging activity and FRAP assay) of ethanolic extract from FCSN obtained by bioconverison at various temperatures (4, 25 and $50^{\circ}C$) and pHs (4.0, 7.0 and 10.0). Our results show that the pectolinarin, pectolinarigenin, and total phenol contents in ethanolic extract from FCSN were decreased during the storage periods. Moreover, the DPPH radical scavenging activity did not significantly change at $4^{\circ}C$ and $25^{\circ}C$. Pectolinarin and pectolinarigenin contents, total phenol content and DPPH radical scavenging activity of ethanolic extract from FCSN at acidic pH (pH 4.0) and neutral pH (pH 7.0) were higher than those at the alkaline pH range. These results indicate that the optimum storage condition of the ethanolic extract from FCSN was $4^{\circ}C$ and pH 4.0~7.0 range.

Effect of ankle joint taping treatment on lower extremity joint and center of pressure factors during the Uchi-mata (허벅다리걸기 동작 시 발목 관절의 테이핑 처치가 하지 관절과 압력 중심 요인들에 미치는 영향)

  • Yun, Hyun
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.2
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    • pp.224-231
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    • 2020
  • The purpose of this study was to analyze the effect of ankle joint taping treatment on lower extremity joint and center of pressure(COP) factors during the Uchi-mata. Twenty college judo athletes (age, 20.9 ± 0.8 years; height, 168.6 ± 7.4cm; weight, 73.5 ± 11.6kg; body mass index, 25.7 ± 2.6kg/㎡) participated, and two types before and after ankle joint taping treatment when the during the Uchi-mata was exhibited under conditions, the angle and COP factors of the support leg joints were analyzed to show the following results. At the time of E2 (t = 2.411, p = .027) E4 (t = 2.388, p = .029), the ankle joint angle was statistically less after the treatment than before the taping treatment, and E2 (t = -2.343, p = .032) At E3 (t = -4.531, p = .000), the angle of the hip joint was statistically large. And after the ankle joint taping treatment, the medial/lateral COP movement after the ankle joint taping treatment was statistically large in the P3 phase of throwing the opponent (t = 2.670, p = .016), and the anterior/posterior COP movement showed a statistically small number in the P1 phase where the opponent was tilted (t = 2.846, p = .011). Therefore, it was suggested that judo athletes who use thighs as a special technique should be used considering the movement function of the support joint and the range of movement of the COP caused by tapping of the ankle joint.

Needs of Hospice Care and Quality of Life for Cancer Patients (암환자의 호스피스 간호 요구와 삶의 질)

  • Seo, In-Sun;Shin, Mi-Hwa;Hong, Se-Hwa
    • Journal of Hospice and Palliative Care
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    • v.13 no.2
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    • pp.89-97
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    • 2010
  • Purpose: This study investigated the relationship between the needs for hospice care and quality of life in cancer patients. Methods: Data were collected from 127 cancer patients hospitalized at a university hospital in Chonbuk between October, 2006 to March, 2007. Two instruments were used: cancer patients' need for hospice care, developed by Kang and Kim and quality of life developed by Tae et al. Results: The mean scores were 3.11 out of 4 for hospice care needs, and 5.25 out of 10 for quality of life. The correlation between needs for hospice care and quality of life was moderate and negative (r=-0.395, P<0.01). Among the four groups of needs, physical need was the most strongly correlated with quality of lifer (r=-0.388, P<0.01). The need for hospice care was significantly different according to participants' religion (t=6.02, P<0.05), and duration of disease (F=3.45, P< 0.05). Quality of life was significantly different according to participants' monthly income (F=3.38, P<0.05). cancer stage (F=8.10, P<0.01) and chemotherapy (t=6.09, P=0.015). Conclusion: The results suggested that the cancer patients' hospice care needs should be answered in order to improve their quality of life. While doing so, participants' characteristic need should also be considered.

Cytotoxicity and antimicrobial effects of the methanolic extract of Sophora flavescens Ait. (IV)

  • Baek, Seung-Hwa;Kang, Kil-Ung;Lee, Jeong-Ho;Park, Nang-Kyu;Chai, Kyu-Yun;You, Il-Soo;Kim, Jong-Soo;Ryu, Do-Gon;Lee, Kang-Min;Yang, Eun-Yeong;Lee, Hyun-Ok
    • Advances in Traditional Medicine
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    • v.1 no.2
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    • pp.45-51
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    • 2000
  • This study was carried out to evaluate cytotoxicity of the methanol extract from Sophora flavescens Ait. against L1210 (lymphocytic leukemia) and $P388D_1$ (lymphoid neoplasma) Cells in vitro. We have determined cytotoxicity by the MTT (3- (4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H- tetrazolium bromide) assay. The order of cytotoxicity of Sophora flavescens Ait. extracts against L1210 and $P388D_1$ cells in vitro is as follows: Fr. 4 > Fr. 3 > Fr. 5 > Fr. 2 > Fr. 1. These results suggest that the fraction 4 of the methanol extracts from Sophora flavescens Ait. may be a valuable choice for the development of antitumor agents. In order to develop an antimicrobial agent, dried Sophora flavescens Ait. was extracted with hot methanol, and then antimicrobial activity (MIC test) was investigated. In this study, the fraction 3 of the methanol extracts from the roots of S. flavescens showed strong growth inhibition activity against gram-positive and gram-negative bacteria (MIC, $3.125\;{\mu}g/ml$) such as S. mutans, S. epidermidis and P. putida. These results indicate that fractions 3 and 4 inhibit tumor cells and bacteria.

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The Relationship between Attitude, Subjective Norms, Perceived Behavioral Control, Intention and Safer Sexual Behavior in the Experienced University Students of Sexual Intercourse (성 경험이 있는 대학생의 태도, 주관적 규범, 지각된 행위통제 및 의도와 안전한 성행위 간의 관계)

  • Kim, Ye-Jean
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.1
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    • pp.356-366
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    • 2014
  • The purpose of this research was to identify the relationships between attitude, subjective norms, perceived behavioral control, intention and safer sexual behavior in experienced university students of sexual intercourse. The research participants were 388 students of university in Seoul. Considering the extremely private and sensitive topic of this research, data collection was performed through online and mobile media from April 1 to 14, 2013. Collected data were analyzed using the SPSS 21.0 Programs. As a results, safer sexual behavior had a meaningful relationship with subjective norms, perceived behavioral control, intention of safer sexual behavior. Based on these results, it is suggested that the results the of this research are used to develop nursing intervention strategies for the promotion of sexual health, such as sex education programs or sex counseling programs targeting university students.

Fertilizer Use Efficiency of Taro (Colocasia esculenta Schott) and Nutrient Composition of Taro Tuber by NPK Fertilization

  • Lee, Ye-Jin;Sung, Jwa-Kyung;Lee, Seul-Bi;Lim, Jung-Eun;Song, Yo-Sung;Lee, Deog-Bae
    • Korean Journal of Soil Science and Fertilizer
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    • v.49 no.4
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    • pp.388-392
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    • 2016
  • The objectives of fertilizer recommendation are to prevent the application of excessive fertilization and to produce target yields. Also, optimal fertilization is important because crop quality can be influenced by fertilization. In this study, yields and fertilizer use efficiency of Taro (Colocasia esculenta Schott) were evaluated in different level of NPK fertilization. N, P and K fertilizer application rates were 5 levels (0, 50, 100, 150, 200%) by practical fertilization ($N-P_2O_5-K_2O=180-100-150kg\;ha^{-1}$), respectively. In the N treatment, the yields of Taro tuber were about $33Mg\;ha^{-1}$ from 90 to $360kg\;ha^{-1}$ N fertilization. However, the ratio of tuber to total biomass decreased with increasing N fertilization rate. In the P and K treatments, yields of Taro tuber were the highest at $150kg\;ha^{-1}$ fertilization. Fertilizer use efficiency was decreased by increase of N and K fertilization. Crude protein of Taro tuber was the highest at practical fertilization. Sucrose content of tuber was influenced by phosphate application.