• Title/Summary/Keyword: CSC

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STUDY OF REPRODUCTIVE POTENTIAL OF BALUCHI SHEEP ON RANGES IN BALUCHISTAN

  • Rafiq, Mohammed;Sultani, M.I.;Munir, M.;Arshad, A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.3 no.3
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    • pp.177-182
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    • 1990
  • A reproductive potential trial using randomized complete block design with $3{\times}3{\times}2$ factorial, was conducted on 84 Baluchi yearling ewes. Ewes grazed on rangeland dominated by Artemisia maritime and Holoxylon grifthii with or without flushing and supplementation of barley grain (BG) and cotton-seed-cake (CSC) during premating, late pregnancy and lactation of 90 days. Analysis of variance revealed that conception rate which ranged 64.28 to 85.71, was significantly greater (p<.05) in ewes flushed with CSC followed by ewes under BG or control feeding regimes. During the gestation period, liveweight of ewes changed from 31.24 to 21.2 kg. A loss of 32% of initial body weight was observed at lambing. Losses in live weight of ewes, regardless the supplementation, were uniform and non-significantly different. Live weight of ewes at lambing and weaning were also similar. Birth weight of lambs was significantly different at p<.05. Lambs born to larger ewes seemed to be heavier than lighter ones. Lambs suckling to ewes with losses in body weight during lactation gained more weight which was significantly different at p<.05. In the paper, factors affecting the conception rate, changes in liveweight of ewes during gestation and lactation and subsequently growth of lambs are discussed.

Application of Stem Cells in Targeted Therapy of Breast Cancer: A Systematic Review

  • Madjd, Zahra;Gheytanchi, Elmira;Erfani, Elham;Asadi-Lari, Mohsen
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.5
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    • pp.2789-2800
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    • 2013
  • Background: The aim of this systematic review was to investigate whether stem cells could be effectively applied in targeted therapy of breast cancer. Material and Method: A systematic literature search was performed for original articles published from January 2007 until May 2012. Results: Nine studies met the inclusion criteria for phase I or II clinical trials, of which three used stem cells as vehicles, two trials used autologous hematopoetic stem cells and in four trials cancer stem cells were targeted. Mesenchymal stem cells (MSCs) were applied as cellular vehicles to transfer therapeutic agents. Cell therapy with MSC can successfully target resistant cancers. Cancer stem cells were selectively targeted via a proteasome-dependent suicide gene leading to tumor regression. $Wnt/{\beta}$-catenin signaling pathway has been also evidenced to be an attractive CSC-target. Conclusions: This systematic review focused on two different concepts of stem cells and breast cancer marking a turning point in the trials that applied stem cells as cellular vehicles for targeted delivery therapy as well as CSC-targeted therapies. Applying stem cells as targeted therapy could be an effective therapeutic approach for treatment of breast cancer in the clinic and in therapeutic marketing; however this needs to be confirmed with further clinical investigations.

Factors Impacting on the Supply Chain Collaboration of the Furniture Industry in Vietnam

  • Suong, Huynh Thi Thu
    • The Journal of Asian Finance, Economics and Business
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    • v.4 no.4
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    • pp.67-77
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    • 2017
  • The purpose of this research is to explore the factors affecting on Supply chain (SC). In fact, the collaborative supply chain (CSC) concept in Vietnam is quite new. Apart from obvious differences of doing business between Western versus and most of developing countries such as Vietnam, the literature suggests that collaboration in the supply chain (SC) of the furniture industry are quite low. The primary reason for such low adoption rates is low awareness of enterprises. In order to achieve the purpose of this study, a literature survey related to SC, CSC was carried out, and an empirical analysis was conducted among 276 manufacturers in this industry with the results analyzed. Using Cronbach's alpha analysis, Explore Factor Analysis (EFA) and Regression Analysis (RA) with primary data collected 276 valid samples from 393 samples in Vietnam, this paper explores and confirms that there are existed six basic factors affecting the collaboration in supply chain including: (i) Trust; (ii) Power; (iii) Maturity; (iv) Strategy; (v) Culture; and (vi) Frequency. Results of the research show strong evidences for policy makers and enterprises for management the supply chain collaboration in furniture industry as well as its contribution to literature review of supply chain management.

A Tensile Criterion to Minimize FE Mesh-Dependency in Concrete Beam under Blast Loading (폭발하중을 받는 콘크리트 보의 요소의존성 최소화 인장기준식)

  • Kwak, Hyo-Gyoung;Gang, HanGul
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.30 no.2
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    • pp.137-143
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    • 2017
  • A tensile failure criterion that can minimize the mesh-dependency of simulation results on the basis of the fracture energy concept is introduced, and conventional plasticity based damage models for concrete such as CSC model and HJC model, which are generally used for the blast analyses of concrete structures, are compared with orthotropic model in blast test to verify the proposed criterion. The numerical prediction of the time-displacement relations in mid span of the beam during blast loading are compared with experimental results. Analytical results show that the numerical error is substantially reduced and the accuracy of numerical results is improved by applying a unique failure strain value determined according to the proposed criterion.

A review on clinical education in clinical skills centers worldwide and its implications (국외 임상술기센터의 임상교육 현황과 시사점)

  • Shin, Hong-Im;Lee, Seung-Hee;Kim, Seung-Ho
    • Korean Medical Education Review
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    • v.10 no.2
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    • pp.1-7
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    • 2008
  • Purpose : The establishment of clinical skills centers(CSCs) to facilitate the teaching and assessment of clinical skills is one of the more recent developments occurring in medical schools worldwide. The aim of this study is to review experiences of CSCs in other medical schools and learn how to design a CSC in our school. Methods : This study was undertaken in two steps. In the first step, educational activities of CSCs in 6 medical schools were reviewed. In the second step, a search for articles of journals regarding clinical skills education in CSCs was conducted. Results : The review of CSCs programs reveals variations among centers in teaching and assessment activities. However there are increasing trends of utilizing CSCs in teaching and learning in CSCs. The delivery of clinical skills is expanded by an increasing use of simulated patients and realistic simulators. Through an audio/video technology, availability of more detailed monitoring and feedback. CSCs also provide greater opportunity for assessment of communications skills, physical examination and practical procedures. Conclusions: CSCs contribute to the effectiveness in clinical teaching and assessment. Educational benefits of a CSC can be maximized by utilizing new delivery methods, implementing educational strategies and staff development programmes.

Honokiol Suppresses Renal Cancer Cells' Metastasis via Dual-Blocking Epithelial-Mesenchymal Transition and Cancer Stem Cell Properties through Modulating miR-141/ZEB2 Signaling

  • Li, Weidong;Wang, Qian;Su, Qiaozhen;Ma, Dandan;An, Chang;Ma, Lei;Liang, Hongfeng
    • Molecules and Cells
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    • v.37 no.5
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    • pp.383-388
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    • 2014
  • Renal cell carcinoma (RCC) is associated with a high frequency of metastasis and only few therapies substantially prolong survival. Honokiol, isolated from Magnolia spp. bark, has been shown to exhibit pleiotropic anticancer effects in many cancer types. However, whether honokiol could suppress RCC metastasis has not been fully elucidated. In the present study, we found that honokiol suppressed renal cancer cells' metastasis via dual-blocking epithelial-mesenchymal transition (EMT) and cancer stem cell (CSC) properties. In addition, honokiol inhibited tumor growth in vivo. It was found that honokiol could upregulate miR-141, which targeted ZEB2 and modulated ZEB2 expression. Honokiol reversed EMT and suppressed CSC properties partly through the miR-141/ZEB2 axis. Our study suggested that honokiol may be a suitable therapeutic strategy for RCC treatment.

Ultrasonic Flaw Detection in Composite Materials Using SSP-MPSD Algorithm

  • Benammar, Abdessalem;Drai, Redouane
    • Journal of Electrical Engineering and Technology
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    • v.9 no.5
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    • pp.1753-1761
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    • 2014
  • Due to the inherent inhomogeneous and anisotropy nature of the composite materials, the detection of internal defects in these materials with non-destructive techniques is an important requirement both for quality checks during the production phase and in service inspection during maintenance operations. The estimation of the time-of-arrival (TOA) and/or time-of-flight (TOF) of the ultrasonic echoes is essential in ultrasonic non-destructive testing (NDT). In this paper, we used split-spectrum processing (SSP) combined with matching pursuit signal decomposition (MPSD) to develop a dedicated ultrasonic detection system. SSP algorithm is used for Signal-to-Noise Ratio (SNR) enhancement, and the MPSD algorithm is used to decompose backscattered signals into a linear expansion of chirplet echoes and estimate the chirplet parameters. Therefore, the combination of SSP and MPSD (SSP-MPSD) presents a powerful technique for ultrasonic NDT. The SSP algorithm is achieved by using Gaussian band pass filters. Then, MPSD algorithm uses the Maximum Likelihood Estimation. The good performance of the proposed method is experimentally verified using ultrasonic traces acquired from three specimens of carbon fibre reinforced polymer multi-layered composite materials (CFRP).

Ligustrum lucidum Fruits Extract Inhibits Acute Pulmonary Inflammation in Mice (생쥐에서 급성 폐렴에 대한 여정자 열매 추출물의 억제효과)

  • Kwak, Ho Geun;Lim, Heung-Bin
    • Korean Journal of Medicinal Crop Science
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    • v.21 no.5
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    • pp.323-328
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    • 2013
  • Traditionally, Ligustrum lucidum fruits (LL) is one of the well-known oriental herb used in the treatment of skin and lung inflammation. This study investigated anti-inflammatory effects of LL in the pathogenesis of acute pulmonary inflammation in mice. Acute pulmonary inflammation was induced by intratracheal instillation of cigarette smoke condensate (CSC) and lipopolysaccharide (LPS) 5 times within 12 days in mice. LL extract was administered orally at a dose of 50 or 200 mg/kg. Administration of LPS and CSC significantly elevated airway hyperresponsiveness (AHR) to mice, and increased in the levels of inflammatory cells and mediators in mice. However, the LL extract significantly reduced the elevated AHR, and the increase of neutrophils, $CD4^+/CD3^+$ cells and $CD8^+/CD3^+$ cells, along with reducing the expression of TNF-${\alpha}$, IL-6, and MIP-2. Moreover, the LL extract alleviated the infiltration of inflammatory cells in expanded airway walls histologically. These results indicate that the LL extract has an inhibitory effects on acute pulmonary inflammation and AHR in murine model, and plays a crucial role as a immunomodulator which possess anti-inflammatory property.

The role of NUMB/NUMB isoforms in cancer stem cells

  • Choi, Hye Yeon;Seok, Jaekwon;Kang, Geun-Ho;Lim, Kyung Min;Cho, Ssang-Goo
    • BMB Reports
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    • v.54 no.7
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    • pp.335-343
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    • 2021
  • Cancer stem cells (CSCs) are a subpopulation of cancer that can self-renew and differentiate into large tumor masses. Evidence accumulated to date shows that CSCs affect tumor proliferation, recurrence, and resistance to chemotherapy. Recent studies have shown that, like stem cells, CSCs maintain cells with self-renewal capacity by means of asymmetric division and promote cell proliferation by means of symmetric division. This cell division is regulated by fate determinants, such as the NUMB protein, which recently has also been confirmed as a tumor suppressor. Loss of NUMB expression leads to uncontrolled proliferation and amplification of the CSC pool, which promotes the Notch signaling pathway and reduces the expression of the p53 protein. NUMB genes are alternatively spliced to produce six functionally distinct isoforms. An interesting recent discovery is that the protein NUMB isoform produced by alternative splicing of NUMB plays an important role in promoting carcinogenesis. In this review, we summarize the known functions of NUMB and NUMB isoforms related to the proliferation and generation of CSCs.

Lossless Non-SIC NOMA Implementation (Part II): 3-user Scheme Study (무손실 Non-SIC 비직교 다중 접속 구현 (II 편): 삼중 사용자 기법 연구)

  • Chung, Kyu-Hyuk
    • The Journal of the Korea institute of electronic communication sciences
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    • v.16 no.6
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    • pp.1029-1036
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    • 2021
  • Recently it has been proposed that lossless 2-user non-orthogonal multiple access (NOMA) can be implemented without successive interference cancellation (SIC) via correlated superposition coding (CSC). However only the 2-user case was considered. Thus this paper proposes a lossless 3-user non-SIC NOMA scheme. This can be achieved via the 3-user CSC scheme. Simulations show that the lossless 3-user non-SIC NOMA scheme can be implemented over power allocation ranges of user-fairness.