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ANALYSIS OF HIGH - FIELD MAGNETIZATION PROCESS IN Sm₂Fe17N3.0
T. S. Zhao,H. M. Jin,J. I. Lee,K. S. Pang 한국자기학회 1995 韓國磁氣學會誌 Vol.5 No.5
The observed high-field magnetization curves of Sm₂Fe_(17)N_(3.0) at 4.2 K and 296 K are well reproduced by the calculation using the Sm-Fe exchange field 2_(μB)Hex = 320 K and two crystalline electric field parameters A²_0 = -910 K and A^0_1 = 200 K. The calculation shows that during the magnetization process along the hard axis at 4.2 K, the Sm moment rotates toward the direction anti parallel to H when H < 110 kOe and then returns to the field direction with further increase of the field. At 296 K, the Sm moment rotates toward the direction antiparallel to H monotonously with increasing field and finally becomes antiparallel to H when H ≥ H_A = 210 kOe. The particular magnetization process of the Sm moment can be explained by the field-induced noncollinear coupling between the spin and orbital moments of the Sm ion.
Zhao, Jian,Wu, Hui,Khosravi, Melanie,Cui, Huijuan,Qian, Xiaoxia,Kelly, Jennifer A.,Kaufman, Kenneth M.,Langefeld, Carl D.,Williams, Adrienne H.,Comeau, Mary E.,Ziegler, Julie T.,Marion, Miranda C.,Adl Public Library of Science 2011 PLoS genetics Vol.7 No.5
<▼1><P>Systemic lupus erythematosus (SLE), a complex polygenic autoimmune disease, is associated with increased complement activation. Variants of genes encoding complement regulator factor H (CFH) and five CFH-related proteins (CFHR1-CFHR5) within the chromosome 1q32 locus linked to SLE, have been associated with multiple human diseases and may contribute to dysregulated complement activation predisposing to SLE. We assessed 60 SNPs covering the <I>CFH</I>-<I>CFHRs</I> region for association with SLE in 15,864 case-control subjects derived from four ethnic groups. Significant allelic associations with SLE were detected in European Americans (EA) and African Americans (AA), which could be attributed to an intronic <I>CFH</I> SNP (rs6677604, in intron 11, <I>P</I><SUB>meta</SUB> = 6.6×10<SUP>−8</SUP>, OR = 1.18) and an intergenic SNP between <I>CFHR1</I> and <I>CFHR4</I> (rs16840639, <I>P</I><SUB>meta</SUB> = 2.9×10<SUP>−7</SUP>, OR = 1.17) rather than to previously identified disease-associated <I>CFH</I> exonic SNPs, including I62V, Y402H, A474A, and D936E. In addition, allelic association of rs6677604 with SLE was subsequently confirmed in Asians (AS). Haplotype analysis revealed that the underlying causal variant, tagged by rs6677604 and rs16840639, was localized to a ∼146 kb block extending from intron 9 of <I>CFH</I> to downstream of <I>CFHR1</I>. Within this block, the deletion of <I>CFHR3</I> and <I>CFHR1</I> (<I>CFHR3-1</I>Δ), a likely causal variant measured using multiplex ligation-dependent probe amplification, was tagged by rs6677604 in EA and AS and rs16840639 in AA, respectively. Deduced from genotypic associations of tag SNPs in EA, AA, and AS, homozygous deletion of <I>CFHR3-1</I>Δ (<I>P</I><SUB>meta</SUB> = 3.2×10<SUP>−7</SUP>, OR = 1.47) conferred a higher risk of SLE than heterozygous deletion (<I>P</I><SUB>meta</SUB> = 3.5×10<SUP>−4</SUP>, OR = 1.14). These results suggested that the <I>CFHR3-1</I>Δ deletion within the SLE-associated block, but not the previously described exonic SNPs of <I>CFH</I>, might contribute to the development of SLE in EA, AA, and AS, providing new insights into the role of complement regulators in the pathogenesis of SLE.</P></▼1><▼2><P><B>Author Summary</B></P><P>Systemic lupus erythematosus (SLE) is a complex autoimmune disease, associated with increased complement activation. Previous studies have provided evidence for the presence of SLE susceptibility gene(s) in the chromosome 1q31-32 locus. Within 1q32, genes encoding complement regulator factor H (CFH) and five CFH-related proteins (CFHR1-CFHR5) may contribute to the development of SLE, because genetic variants of these genes impair complement regulation and predispose to various human diseases. In this study, we tested association of genetic variants in the region containing <I>CFH</I> and <I>CFHRs</I> with SLE. We identified genetic variants predisposing to SLE in European American, African American, and Asian populations, which might be attributed to the deletion of <I>CFHR3</I> and <I>CFHR1</I> genes but not previously identified disease-associated exonic variants of <I>CFH</I>. This study provides the first evidence for consistent association between <I>CFH/CFHRs</I> and SLE across multi-ancestral SLE datasets, providing new insights into the role of complement regulators in the pathogenesis of SLE.</P></▼2>
Pan, L.,Zhao, P.F.,Yang, Z.Y.,Long, S.F.,Wang, H.L.,Tian, Q.Y.,Xu, Y.T.,Xu, X.,Zhang, Z.H.,Piao, X.S. Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.12
Two experiments were conducted to evaluate effects of coated compound proteases (CC protease) on apparent total tract digestibility (ATTD) of nitrogen (N) and energy, and apparent ileal digestibility (AID) of amino acids (AA) and nutrients in diets for pigs. In Exp. 1, 12 crossbred barrows (initial body weight: $20.79{\pm}1.94kg$) were housed in individual metabolism crates and allotted into 2 treatments with 6 piglets per treatment according to weight in a randomized complete block design. The 2 diets were corn-soybean meal basal diets with (0.2 g/kg) or without CC protease supplementation. The CC protease supplementation increased (p<0.05) the digestible and metabolizable N and energy values and the digestibility and retention rate of N in the diet. The ATTD of energy and nutrients had been improved (p<0.05) in the diet supplemented with CC protease. In Exp. 2, 12 crossbred barrows (initial body weight: $20.79{\pm}1.94kg$), fitted with T-cannulas at the distal ileum, were blocked by body weight into 2 groups with 6 pigs each. The diets were the same as those in Exp. 1. The CC protease increased (p<0.05) the AID of crude protein and some essential AA including arginine, isoleucine and leucine. The AID and ATTD of energy and nutrients had been improved (p<0.05) by supplemental CC protease, but the hindgut digestibility of nutrients was unaffected. Overall, the CC protease improved the ATTD of N and energy and AID of some indispensible AA and nutrients in the corn-soybean meal diet for pigs. Therefore, the CC protease supplement could improve the utilization of protein in the corn-soybean meal diet and thus contribute to lower N excretion to the environment.
Synthesis and Characterization of hollow Fe_3O_4 submicrospheres by a Simple Solvothermal Synthesis
L. F. Duan,S. S. Jia,T. H. Wang,L. J. Zhao 대한금속·재료학회 2011 METALS AND MATERIALS International Vol.17 No.5
Hollow single crystal Fe_3O_4 submicrospheres, which exhibit excellent magnetic properties, have been synthesized by a simple solvothermal process. These Fe3O4 particles have nanocrystallites with an average diameter of about 300 nm and are constructed with a hollow sphere structure that has an inside diameter of about 70 nm. The growth of the hollow Fe_3O_4 submicrospheres involves the cooperation of Ostwald ripening and oriented re-aggregation with increasing reaction time. As the oriented aggregation continues, adjacent nanocrystals fuse together along the (311) direction and the final product is formed as hollow spheres. Optional re-aggregation of the Fe3O4 hollow spheres may happen in the EG and N_2H_4·H_2O solution. The synthesized Fe_3O_4 particles show different magnetic properties and can be adjustable with morphological variation.
Nguyen, T.T.,Nguyen, D.H.,Zhao, B.T.,Le, D.D.,Choi, D.H.,Kim, Y.H.,Nguyen, T.H.,Woo, M.H. Academic Press 2017 Bioorganic chemistry Vol.74 No.-
A new lignan, utilisin (1), and a new alkaloid, echinoutilin (2), together with eleven known compounds 3-13 were isolated from the grains of Echinochloa utilis Ohwi & Yabuno. Their structures were identified through the analysis of spectroscopic data. The absolute configuration of 2 was determined by Mosher's method. These compounds were evaluated for α-glucosidase inhibitory activity. Among them, compounds 2, 3 and 6 exhibited considerable α-glucosidase inhibitory activity with IC<SUB>50</SUB> values of 42.1+/-1.3, 58.9+/-3.7, and 40.9+/-1.1μM, respectively. The results indicate that the grains of E. utilis will be useful in the treatment of diabetes control agents.
Xuan, X.T.,Ding, T.,Li, J.,Ahn, J.H.,Zhao, Y.,Chen, S.G.,Ye, X.Q.,Liu, D.H. Butterworths ; Taylor Francis ; Elsevier Science 2017 FOOD CONTROL Vol.71 No.-
<P>Time to detection experiments (TTD) based on turbidometry using an automatic Bioscreen C is a useful and straightforward method for estimating microbial growth parameters (lag time (lambda), growth rate (mu) and 'work to be done' (h(0))) at constant temperature. This study investigated the effects of slightly acidic electrolyzed water (SAEW) and heat treatment on Listeria monocytogenes growth at different recovery temperatures (10 degrees C, 15 degrees C, 25 degrees C, and 30 degrees C). Similar surviving and sublethally injured L. monocytogenes populations were obtained by heat treatment (55 degrees C for 10 min) and SAEW treatment (available chlorine concentration of 30 mg/l and ratio of bacteria against SAEW of 8:2 for 30 s). In these experimental conditions, stresses had greater impact on the lambda and h(0) parameter in comparison with recovery temperature while there was no great change in growth rate under isothermal conditions. Larger lambda values and h(0) parameters were observed in sublethal-heat injured L. monocytogenes (the maximum lambda and h(0) parameters are 30.199 h and 1.6492) as compared to SAEW groups (the maximum lambda and h(0) parameters are 22.634 h and 1.4396). The sensitivity analysis of SAEW and heat treatments on h(0) parameter indicated that SAEW treatment showed a higher influence. The collinearity diagnostics of independent variables [recovery temperature (T), mu, lambda] for dependent variable (h(0) parameter) demonstrated that T, mu and lambda had strong collinearity. In addition, the established secondary models in this study have good performances on predicting the effect of recovery temperature on bacterial growth parameters. (C) 2016 Elsevier Ltd. All rights reserved.</P>
Zhao, W.‐,G.,Chung, J.‐,W.,Lee, G.‐,A.,Ma, K.‐,H.,Kim, H.‐,H.,Kim, K.‐,T.,Chung, I.‐,M.,Lee, J.‐,K.,Kim, N.‐,S.,Kim, S.‐,M.,Park, Y.‐ Blackwell Publishing Ltd 2011 Plant breeding Vol.130 No.1
<P> <I>With 7 figures and 6 tables</I> </P><P><B>Abstract</B></P><P>Garlic is widely consumed for its culinary and medical benefits. Six hundred and thirteen accessions of garlic and its relatives with diverse origin were evaluated for genetic diversity at eight recently novel simple sequence repeat loci in this study. A total of 113 alleles were detected, the average allelic richness was 14.1 alleles per locus. Using a heuristic approach, a core set of 95 accessions was successfully developed, which showed 100% coverage of alleles with minimum redundancy. The model‐based structure analysis here revealed the presence of four subpopulations in the selected core set, which was basically consistent with clustering based on the genetic distance. The analysis of molecular variance based on this core set showed that between‐population component of genetic variance is <15.6% in contrast to 84.4% for the within population component. Overall <I>F</I><SUB>ST</SUB> value was 0.1560, indicating a moderate differentiation among the four groups. These results will provide an effective aid for future allele mining, association genetics, mapping and cloning gene(s), germplasm conservation, and improvement programs.</P>
Visualizing Individual Nitrogen Dopants in Monolayer Graphene
Zhao, L.,He, R.,Rim, K. T.,Schiros, T.,Kim, K. S.,Zhou, H.,Gutierrez, C.,Chockalingam, S. P.,Arguello, C. J.,Palova, L.,Nordlund, D.,Hybertsen, M. S.,Reichman, D. R.,Heinz, T. F.,Kim, P.,Pinczuk, A.,F American Association for the Advancement of Scienc 2011 Science Vol. No.