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Yin, Q.Q.,Chang, J.,Zuo, R.Y.,Chen, L.Y.,Chen, Q.X.,Wei, X.Y.,Guan, Q.F.,Sun, J.W.,Zheng, Q.H.,Yang, X.,Ren, G.Z. Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.2
In order to improve the availability of phytase and probiotics together, a phytase gene from Aspergillus ficuum has been expressed in Lactobacillus. In this study, the transformed Lactobacillus with phytase gene was fed to pigs to determine its effect on pig production, feed conversion and gut microbes. Forty eight, 60-day-old, castrated pigs (Duroc${\times}$Landrace${\times}$Pietrain) were assigned to 6 groups, 8 pigs for each group. Group 1 was the control, group 2 was added with chlortetracycline (500 mg/kg), group 3 was added with the transformed Lactobacillus (500 mg/kg) with 20% (w/w) of calcium monohydrogen phosphate (CMP, $CaHPO_{4}$) removed, group 4 was added with the natural Lactobacillus (500 mg/kg) with 20% (w/w) of CMP removed, group 5 was added with the transformed Lactobacillus (500 mg/kg) with 40% (w/w) of CMP removed, group 6 was added with phytase (500 mg/kg) with 40% (w/w) of CMP removed. The results showed: i) the average daily gain (ADG) was improved in groups 2, 3 and 4 (p<0.05); ii) the diarrhea rates in the groups added with Lactobacillus were lower than in the other groups (p<0.05), in which the transformed Lactobacillus had more effect on reducing digestive disease; iii) the transformed Lactobacillus was most effective in improving the digestibilities of crude protein (CP), calcium (Ca), phosphorus (P), compared with the other groups (p<0.05); iv) Lactobacillus could increase lactic acid bacterium number and ammonia concentrations, and decrease pH values and E. coli number in pig feces (p<0.05); v) the phytase activity in the feces of pigs fed with the transformed Lactobacillus was 133.32 U/g, which was higher than in group 4 (9.58 U/g, p<0.05), and was almost the same as group 6 (135.94 U/g); vi) the transformed Lactobacillus could increase serum concentrations of IgA, triglyceride, and glutamic oxaloacetic transaminase activity (p<0.05), and had no significant effect on other serum indexes (p>0.05).
DNA 분석을 통한 한우 , 연변황우 및 화우의 유전적 특성
신원집,여정수,김재우,신수길,정진우,이지홍 한국축산학회 1999 한국축산학회지 Vol.41 No.4
This study was conducted to identify the genetic parameters and genetic relationships among 3 cattle breeds of Hanwoo (Korea), Yanbian yellow cattle (China), and Wagyu (Japan). DNA fingerprinting was prepared using M13 probe and Pst 1 enzyme. Genetic homogencities of Hanwoo and Yanbian yellow cattle were comparatively lower than that of Wagyu, suggesting genetic improvement by active breeding program for Wagyu compared to Hanwoo and Yanbian yellow cattle and possibility of improvement capacity for Hanwoo and Yanbian yellow cattle. Genetic similarities between breeds were not significantly different among them, suggesting that these 3 breeds have been raised independently without any inflow or outflow of gene source for a while.
ZhEng, D. W.,Huang, Y. P.,Tang, T. A.,Cui, Q.,Li, A. Z.,Zhou, S. X.,He, Z. J.,Chen, Z.,Zhang, X. J.,Kwor, R. 대한전자공학회 1993 ICVC : International Conference on VLSI and CAD Vol.3 No.1
A novel process for silicon on insulator(SOI) technology has been presented. Single crystal Si is grown by molecular beam epitaxy(MBF) on a porous silicon(PS) system consisting of two layers of PS with different microstructures. Subsequent lateral oxidation converts the structure to SOI wish excellent insulation property. Si islands with a width of 135㎛ and low doping concentration have been achieved.
( Tadakazu Hisamatsu ),( Hyo Jong Kim ),( Satoshi Motoya ),( Yasuo Suzuki ),( Yoshifumi Ohnishi ),( Noriyuki Fujii ),( Nobuko Matsushima ),( Richuan Zheng ),( Colleen W. Marano ) 대한장연구학회 2021 Intestinal Research Vol.19 No.4
Background/Aims: We aimed to evaluate the efficacy and safety of ustekinumab (UST) in the East-Asian population with mod-erate to severely active ulcerative colitis (UC). Methods: This sub-analysis was conducted on data from East-Asian patients included in the UNIFI program (NCT02407236). UNIFI consisted of two double-blind, placebo-controlled trials: an 8-week induction study and a 44-week randomized withdrawal maintenance study. Results: Of 133 East-Asian patients (Japanese: 107, Korean: 26) who underwent randomization, 131 completed induction study and 111 entered maintenance study. In the main-tenance study, 78 patients were randomized. Patients who received UST 130 mg and UST 6 mg/kg showed numerically higher clinical remission at week 8 in the induction study (5/44 [11.4%] and 5/45 [11.1%], respectively) compared with those who re-ceived placebo (0/44, 0%). The proportion of patients achieved clinical remission at week 44 was numerically higher in the UST 90 mg q12w group (10/21, 47.6%), but similar in the UST 90 mg q8w group (5/26, 19.2%) compared to placebo (7/31, 22.6%). Serious adverse events were reported in 1 patient in UST 130 mg group, but no patient in UST 6 mg/kg group through week 8 in the induction study, and 1 patient in UST 90 mg q12w group and 5 patients in the UST 90 mg q8w group in the maintenance study. No deaths were reported in East-Asian patients throughout the study. Conclusions: UST induction and maintenance treatments were effective in East-Asian patients with moderate to severe UC; the efficacy and safety profiles were consistent with the overall population. (Intest Res 2021;19:386-397)
Zheng, S.L,Du L,Zhou Y.W. 한국지능정보시스템학회 2022 한국지능정보시스템학회 학술대회논문집 Vol.2022 No.6
Along with the Internet economy developing entrepreneurship has become the good choice of college students. However, there are still many problems. School-enterprise cooperation provides a new direction for training students to conduct cross-border e-commerce entrepreneurship. Based on the triple helix theory, it is found that conditions of incubator, school-enterprise cooperation degree, entrepreneurship education and entrepreneurial environment of universities directly affect the success rate of incubator of cross-border e-commerce entrepreneurial projects.
A Damage Model for Assessing Pipeline Safety in Corrosion Environments
Zhao, X. W.,Luo, J. H.,Zheng, M.,Lu, M.X.,Li, H.L 대한금속학회 2002 METALS AND MATERIALS International Vol.8 No.5
Considering such practical pipeline service conditions in the petroleum transportation field as corrosion from harmful media (H_2S, CO_2 etc.) and load from the pressure of flowing petroleum as key factors, the degradation of the mechanical properties of pipeline steels and the corresponding variations in stress states are studied. A damage variable is introduced to reflect the degradation in the mechanical properties of the pipeline due to corrosion. A diluted solution approach is proposed to model the corrosion process of harmful media within the pipeline and the distribution of the damage variable along the radial direction of the pipeline is derived. An approach to the safety evaluation of damaged pipeline is proposed by comparing the instant properties of pipeline steels with servicing conditions.
POSTERS / PW-092 : OKADAIC ACID TRANSIENTLY INDUCES VIMENTIN mRNA IN HL-60 CELLS
(Y . C . Lee),(K . A . Yun),(T . W . Kang),(M . Y . Son),(M . Z . Zheng),(B . D . Hwang),(K . Lim),(M . Y . Huh),(W . H . Yoon),(K . S . Park),(Y . J . Jung) 한국생화학분자생물학회 (구 한국생화학회) 1999 6th IUBMB SEOUL CONFERENCE Vol.- No.-