• Title/Summary/Keyword: LP system

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On-line Scheduling Algorithms for Reducing the Largest Weighted Error Incurred by Imprecise Tasks (부정확 타스크의 최대가중치 오류를 최소화시키는 온라인 스케쥴링 알고리즘)

  • Lee, Chun-Hi;Ryu, Won;Song, Ki-Hyun;Choi, Kyung-Hee;Jung, Gy-Hyun;Park, Seung-Kyu
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.24 no.6B
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    • pp.1032-1041
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    • 1999
  • This paper proposes on-line scheduling algorithms that reduce the largest weighted error incurred by preemptive imprecise tasks running on a single processor system. The first one is a two-level algorithm. The top-level scheduling, which is executed whenever a new task arrives, determines the processing times to be allotted to tasks in such a way to minimize maximum weighted error as well as to minimize total error. The lower-level algorithm actually allocates the processor to the tasks. The second algorithm extends the on-line algorithm studied by Shih and Liu[4] by formalizing the top-level algorithm mathematically. The numerical simulation shows that the proposed algorithm outperforms the previous works in the sense that it greatly reduces the largest weighted error.

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Performance Improvement of Binary MQ Arithmetic Coder (2진 MQ 산술부호기의 성능 개선)

  • Ko, Hyung Hwa;Seo, Seok Yong
    • Journal of Advanced Navigation Technology
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    • v.19 no.6
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    • pp.614-622
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    • 2015
  • Binary MQ arithmetic coding is widely used recently as a basic entropy coder in multimedia coding system. MQ coder esteems high in compression efficiency to be used in JBIG2 and JPEG2000. The importance of arithmetic coding is increasing after it is adopted as an unique entropy coder in HEVC standard. In the binary MQ coder, arithmetic approximation without multiplication is used in the process of recursive subdivision of range interval. Because of the MPS/LPS exchange activity happened in MQ coder, output byte tends to increase. This paper proposes an enhanced binary MQ arithmetic coder to make use of a lookup table for AQe using quantization skill in order to reduce the deficiency. Experimental results show that about 4% improvement of compression in case of JBIG2 for bi-level image compression standard. And also, about 1% improvement of compression ratio is obtained in case of lossless JPEG2000 coding. For the lossy JPEG2000 coding, about 1% improvement of PSNR at the same compression ratio. Additionally, computational complexity is not increasing.

Breast Cancer Survival at a Leading Cancer Centre in Malaysia

  • Abdullah, Matin Mellor;Mohamed, Ahmad Kamal;Foo, Yoke Ching;Lee, Catherine May Ling;Chua, Chin Teong;Wu, Chin Huei;Hoo, LP;Lim, Teck Onn;Yen, Sze Whey
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.18
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    • pp.8513-8517
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    • 2016
  • Background: GLOBOCAN12 recently reported high cancer mortality in Malaysia suggesting its cancer health services are under-performing. Cancer survival is a key index of the overall effectiveness of health services in the management of patients. This report focuses on Subang Jaya Medical Centre (SJMC) care performance as measured by patient survival outcome for up to 5 years. Materials and Methods: All women with breast cancer treated at SJMC between 2008 and 2012 were enrolled for this observational cohort study. Mortality outcome was ascertained through record linkage with national death register, linkage with hospital registration system and finally through direct contact by phone or home visits. Results: A total of 675 patients treated between 2008 and 2012 were included in the present survival analysis, 65% with early breast cancer, 20% with locally advanced breast cancer (LABC) and 4% with metastatic breast cancer (MBC). The overall relative survival (RS) at 5 years was 88%. RS for stage I was 100% and for stage II, III and IV disease was 95%, 69% and 36% respectively. Conclusions: SJMC is among the first hospitals in Malaysia to embark on routine measurement of the performance of its cancer care services and its results are comparable to any leading centers in developed countries.

Effect of Mixture extracted from Bupleuri Radix and Physalidis Herba on the LPS-induced depression in Rats (시호(柴胡)와 산장(酸漿) 복합제가 LPS로 유도된 우울증에 미치는 효과)

  • Lee, Won-Haeng;Kim, Do-Hoon;Lee, Tae Hee
    • The Korea Journal of Herbology
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    • v.30 no.3
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    • pp.69-76
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    • 2015
  • Objectives : The effect of mixture extracted from Bupleuri Radix and Physalidis Herba(BR+RH) on the LPS-induced Depression in rats was investigated. Methods : Rats were administered intragastrically BR+PH after injectio of LPS to induce deprssion. Immobility was examined using Tail Suspension Test(TST), Forced Swimming Test(FST). The level of plasma corticosterone was measured by an Enzyme-Linked Immunosorbent Assay(ELISA) method. The expressions of c-Fos, Corticotropin Releasing Factor(CRF), NADPH-d in the Paraventricular nucleus(PVN) and TH in the Locus coeruleus(LC) were measured by immunohistochemical method. Results : In the effect of BR + PH on TST, immobility was significantly decreased comparing with the LPS group. In FST, immobility was shown decrease tendency in the BR+PH group. The expression of c-Fos in the PVN was significantly decreased at BR + PH400 group, comparing with the LPS group. The expression of CRF in PVN was shown dto have the decrease tendency in the BR+PH group, comparing with the LPS group. The expression of NADPH-d in PVN was not significantly decreased at BR+PH groups, comparing with the LPS group. The expression of TH in the LC was shown to have the decrease tendency at BR + RH groups, but not significantly, comparing with the LPS group. Conclusions : Anti-depressant effect of mixture after extracted from Bupleuri Radix and Physalidis Herba was through the anti-inflammatory effect via inhibition of HPA axis. NO and catecholamine system is not involved.

The Study on Characteristic and the Actual Condition of General Infant Formula and Special Infant Formula Published in Nation (국내(國內) 시판중(市販中)인 일반조제분유와 특수분유의 특성(特性)과 실태연구(實態硏究))

  • Lee Seoung-Hee;Kim Jang-Hyun
    • The Journal of Pediatrics of Korean Medicine
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    • v.13 no.2
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    • pp.41-77
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    • 1999
  • The purpose of this research is that infant artificial feeding products is used in clonic with the study on characteristic, ingredients and indication of geneal and special modified milks. The result is as follows. 1. The main ingredients of four company products-Maeil , Namyang, Pasteur, Aebout is similar but the functional is different 2. General infant formula is divided into 100days, 5-6months, 12months, 24months and 36months out of consideration for growth and development of infant. 3. The indication and sorts of the special infant formula used at a hospital is as follows. PKU-1, PKU-2 formula is available for phenylketonuria. MPA formula is available for propionic acidemia and methylmalonic acidomia. UCD is available for urea cycle disorder Leucine-free formula is available for isovaleric acidemia. Maeil LP is available for hypocalcemia. MCT formula is available for indigestion and malabsorption of fat. BCAA-free formula is available for Maple syrup urine disease. Protein-free formula is available for limit of protein uptake or mixture of peculiar amino acid or higher uptake of mineral, vitamin, calory. Methionine-free formula is available for homocystinuria and hypermethioninemia. Premature infant is available for premature and low birth weight. 4. The special infant formula published in nation is as follows. Maeil soy A, Maeil MF1, Namyang hope doctor and Maeil HA is available for diarrhea. Maeil HA, Maeil HA-21 and Namyang hope allergy is available for hypoallergy. Maeil soy A is available for diarrhea of milk allergy. Maeil MF1 or Namyang hope doctor is available for acute bacterial or viral temporal diarrhea. Maeil HA is available for allergic chronic diarrhea. Maeil HA and Namyang hope allergy as eHP-formula is available for chronic diarrhea for lactose intolerance and milk allergy. Maeil-21 as pHP-formula for neonates with allergy family, allergic symptoms such as atopic dermatitis, asthma except digestive system.

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Anti-inflammatory Effect of Inonotus obliquus Extracts in Lipopolysaccharide-induced Mouse Peritoneal Macrophage (LPS로 유도된 마우스 복강 대식세포에서 차가버섯 열수 추출물의 염증 억제 효과)

  • Ko, Suk-Kyung;Pyo, Myoung-Yun
    • Korean Journal of Pharmacognosy
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    • v.42 no.3
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    • pp.253-259
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    • 2011
  • Macrophages play a vital role in the innate immune system involving defensive cytokines such as TNF (tumor necrosis factor)-${\alpha}$ and nitric oxide (NO). Therefore, we try to elucidate the anti-inflammatory activity of Chaga mushroom (Inonotus Obliquus, IO) in murine macrophages. Raw 264.7 cells and peritoneal macrophages of mice were cultured with or without LPS/LPS + IFN-${\gamma}$ in the presence of IO aqueous extracts (IOE 0.2, 2, 20, 100 ${\mu}g$/mL) for 24 hr and 48 hr, respectively. Exposure of IOE caused the decrease of NO production and increase of TNF-${\alpha}$ production in dose-dependent manner in activated peritoneal macrophage in vitro. To further investigate anti-inflammatory effects of IO ex vivo, we orally administrated capsaicin (PC, 3 mg/kg/day) and IOE (100, 200, 400 mg/kg/day) for 4 consecutive days to C57BL/6 mice (7~9 weeks old, female), then observed the NO secretion and cytokine (TNF-${\alpha}$) production of LPS/LPS + INF-${\gamma}$-stimulated peritoneal macrophages. IOE inhibits NO secretion in dose-dependent manner both ex vivo and in vitro and increases the production of TNF-${\alpha}$ in vitro. In addition, we found that IOE possessed suppressive effects of LPS-stimulated TNF-${\alpha}$, IL-$1{\beta}$, COX-2, as well as iNOS expressions in Raw 264.7 cells. These findings indicate that IOE suppress not only the LPS-induced NO overproduction of murine peritoneal macrophages, but also iNOS, COX-2, TNF-${\alpha}$, and IL-$1{\beta}$ overexpression of LPS-induced Raw 264.7 cells. Consequently, our results suggest that IO may have the anti-inflammatory effects via suppression of the inflammatory cytokines and mediators, and be useful for the treatment of inflammatory diseases.

Effects of Chinemys reevesii on Lipopolysaccaride-indused Inflammatory Reactions (구판의 LPS로 유도된 염증 반응 억제 효과)

  • Baek, Young-Mi;Choi, Jung-Yen;Lee, Cheol-Woo;Jeon, Young-Seok;Han, Jin-Taek;Jang, Sung-Il;Yoo, Hwa-Seung
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.26 no.1
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    • pp.26-34
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    • 2012
  • This study is to investigate the effects of Chinemys reevesii (CR) on allergic inflammation mechanism related chronic dermatitis. To investigate the effects of CR, we study inhibitory effect of CR on the levels of pro-inflammatory cytokines released from RAW 264.7 cell stimulated with lipopolysaccaride (LPS), and EoL-1, THP-1, Jutkat cell stimulated with Dermatophagoides pteronyssinus (DP), and LPS induced acute inflammatory BALB/c mouse model. CR reduced the levels of IL-$1{\beta}$ released from RAW 264.7 cell stimulated with LPS at 20 ug/ml, 10 ug/ml concentration. CR significantly reduced the levels of MCP-1 released from EoL-1 cell, IL-6 from THP-1 cell, and IL-4, IL-5, TNF-${\alpha}$ from Jutkat cell stimulated with DP at all the concentration. CR significantly reduced the levels of TNF-${\alpha}$, IL-6, IL-$1{\beta}$, in LPS induced inflammatory BALB/c mouse model, in a dose-dependent manner. These results suggested that CR has suppressive effects on pro-inflammatory cytokines in various inflammation related cell lines through the regulation of immune system. CR could be a therapeutic agent for treatment of chronic inflammatory dermatitis in the future.

miR-30a-5p Augments the Anti-inflammatory Effects of Dexmedetomidine in LPS-induced BV2 Cells (LPS로 유도된 BV2 세포에서 Dexmetomidine이 갖는 항염증효과에 대한 miR-30a-5p의 시너지 효과)

  • Kim, Ji-Eun;Yang, Seung-Ju
    • Korean Journal of Clinical Laboratory Science
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    • v.54 no.3
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    • pp.201-208
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    • 2022
  • Neuroinflammation is defined as a neurological inflammation within the brain and the spinal cord. In neuroinflammation, microglia are the tissue-resident macrophages of the central nervous system, which act as the first line of defense against harmful pathogens. Dexmedetomidine (Dex) has an anti-inflammatory effect in many neurological conditions. Additionally, the microRNA-30a-5p (miR-30a-5p) mimic has been proven to be effective in macrophages in inflammatory conditions. This study aimed to investigate the synergistic anti-inflammatory effects of both miR-30a-5p and Dex in lipopolysaccharide (LPS)-induced BV2 cells. This study showed that miR-30a-5p and Dex decreased nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) translocation in LPS-induced BV2 cells. MiR-30a-5p and Dex alleviated tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6), LPS-induced phosphorylation c-Jun N-terminal kinases (JNK), extracellular signal-regulated kinase (ERK) and p38. Also, the expression of the NOD-like receptor pyrin domain containing 3 inflammasome (NLRP3), cleaved caspase-1, and ASC was inhibited. Furthermore, LPS-stimulated nitric oxide (NO) production, inducible nitric oxide synthase (iNOS), and cyclooxygenase-2 (COX-2) expression were attenuated by Dex and miR-30a-5p. Our results indicate that a combination of Dex and miR-30a-5p, attenuates NF-κB activation, the mitogen-activated protein kinase (MAPK) signaling pathway, and inflammatory mediators involved in LPS-induced inflammation and inhibits the activation of the NLRP3 inflammasome in LPS-activated BV2 cells.

Three-dimensional analysis of the outcome of different scanning strategies in virtual interocclusal registration

  • Jiansong, Mei;Liya, Ma;Jiarui, Chao;Fei, Liu;Jiefei, Shen
    • The Journal of Advanced Prosthodontics
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    • v.14 no.6
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    • pp.369-378
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    • 2022
  • PURPOSE. The purpose of this in vitro study was to assess whether scanning strategies of virtual interocclusal record (VIR) affect the accuracy of VIR during intraoral scanning. MATERIALS AND METHODS. Five pairs of reference cubes were added to the digital upper and lower dentitions of a volunteer, which were printed into resin casts. Subsequently, the resin casts were articulated in the maximal intercuspal position in a mechanical articulator and scanned with an industrial computed tomography system, of which the VIR was served as a reference VIR. The investigated VIR of the upper and lower jaws of the resin master cast were recorded with an intraoral scanner according to 9 designed scanning strategies. Then, the deviation between the investigated VIRs and reference VIR were analyzed, which were measured by the deviation of the distances of six selected reference points on the upper reference cubes in each digital cast to the XY-plane between the investigated VIRs and reference VIR. RESULTS. For the deviation in the right posterior dentitions, RP group (only scanning of right posterior dentitions) showed the smallest deviation. Besides, BP group (scanning of bilateral posterior dentitions) showed the smallest deviation in the left posterior dentitions. Moreover, LP group (scanning of left posterior dentitions) showed the smallest deviation in the anterior dentitions. For the deviation of full dental arches, BP group showed the smallest deviation. CONCLUSION. Different scanning strategies of VIR can influence the accuracy of alignment of virtual dental casts. Appropriate scanning strategies of VIR should be selected for different regions of interest and edentulous situations.

Effect of Glycyrrhizae Radix Water Extract on the depression induced by LPS in Rats (LPS로 유발된 우울증에 대한 감초(甘草)의 효과)

  • Ko, Sung-Youl;Kim, Do-Hoon;Lee, Tae-Hee
    • The Korea Journal of Herbology
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    • v.29 no.5
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    • pp.9-16
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    • 2014
  • Objectives : Investigation of the antidepressant effect of Glycyrrhizae Radix (GR) through the anti-inflammatory effect. Methods : Depression in rats was induced by LPS (i,p.3days). The rats were treated with GR100 mg/kg (GR 100) or GR400 mg/kg (GR 400). The depressive immobility was examined with Tail Suspension Test(TST) and Forced Swimming Test(FST). The expression of nuclear factor-${\kappa}B$(NF-${\kappa}B)$, $I{\kappa}B$ was measured with western blotting. The concentration of corticosterone, cytokine in plasma was measured with ELISA. The expression of c-Fos in the paraventricular nucleus(PVN) and tyrosine hydroxylase(TH) in the locus coeluleus(LC) were measured with immunostaining method. Results : In the TST, GR400 group significantly decreased immobility time compared with the LPS group. In the FST, GR100, GR400 group significantly decreased immobility time comparing with the LPS group. c-Fos expression in GR100 and GR400 group was decreased comparing with the lipoplysaccharide(LPS) group. The $I{\kappa}B$ expression of GR100 and GR400 group was increased comparing with the LPS group. The level of corticosterone of GR100 group was decreased comparing with the LPS group. The concentration of cytokine of GR100 and GR400 group was decreased comparing with the LPS group. TH expression in the LC was increased in LPS group, but in GR100 and GR400 group was not shown significant decrease. Conclusion : According to this results obtained, GR has antidepressant effects by the anti inflammatory action through the suppression of HPA axis activity, not through the action against the catecholaminergic system.