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Günter Theiβen,Annette Becker,Jorge Cacharron,Wim Deleu,Alexandra Di Rosa,Wolfram Faigl,Akira Kanno,Jan T. Kim,Charlotte Kirchner,Zheng Meng,Thomas Munster,Sunsane Werth,Luzie Ursula Wingen,Kai-U Plant molecular biology and biotechnology research 1998 Proceedings the 2nd Korean-Germany joint symposium Vol.1998 No.-
MADS-box genes (Schwarz-Sommer et al. 1990) contribute significantly to the development of inflorescences and flowers, e.g. by acting as floral meristem or organ identity genes (for recent reviews, see Thei?en and Saedler 1995; Thei?en et al. 1996;Riechmann and Meyerowitz 1997). Up to now, MADS-box genes have mainly been studied in the scientific context of developmental biology, and in eudicotyledonous model plants of little commercial value, such as Antirrhinum and Arabidopsis. The focus of our group is to apply our current knowledge about flower development to breeding research and evolutionary biology. Therefore, we are currently characterizing the MADS-box gene family in the important monocotyledonous crop plant maize (Zea mays ssp. mays), and in other phylogenetic informative taxa, such as the monocots lily (Lilium regale) and tulip (Tulipa gesneriana), the basal angiosperm Cabomba, and non-flowering plnats including the gymnosperm Gnetum gnemon and the ferns Ceratopteris and Ophioglossum.
Meng, Q.B.,Yang, G.S.,Lee, Y.S. Elsevier Scientific Pub. Co 2012 Journal of hazardous materials Vol.205 No.-
Reports on the development of polymer adsorbents for microwave-assisted desorption of nonpolar volatile organic compounds (VOCs) are rare. In this study, we synthesized macroporous polymeric adsorbents with hydrophilic methyl pyridinium units for microwave-assisted desorption of nonpolar VOCs. The benzene adsorption and desorption properties of the adsorbents were investigated under both dry and humid conditions. Under humid conditions, as the content of the hydrophilic methyl pyridinium units in the adsorbents increased from 0 to 20%, the adsorption capacity of benzene decreased from about 21 to 7mg/g, while the desorption efficiency of benzene increased significantly from 48 to 87%. The maximum concentration of desorbate also increased significantly as the content of the hydrophilic units was increased under humid conditions. We attributed the enhanced desorption efficiency mainly to more adsorbed moisture, which indirectly allowed heating of the polymer adsorbents to higher temperatures upon irradiation with 600W microwaves.
Meng, Q.X.,Xia, Z.G.,Kerley, M.S. Asian Australasian Association of Animal Productio 2000 Animal Bioscience Vol.13 No.10
A continuous culture study was conducted to determine the impact of ruminal degradable soy protein (S-RDP) level and dilution rate (D) on growth of ruminal non-structural carbohydrate-fermenting microbes. Corn starch, urea and isolated soy protein (ISP) were used to formulate three diets with S-RDP levels of 0, 35 and 70% of total dietary CP. Two Ds were 0.03 and $0.06h^{-1}$ of the fermenter volume in a single-effluent continuous culture system. As S-RDP levels increased, digestibilities of dietary dry matter (DM), organic matter (OM) and crude protein (CP) linearly (p=0.001) decreased, whereas digestion of dietary starch linearly (p=0.001) increased. Increasing D from 0.03 to $0.06h^{-1}$ resulted in decreased digestibilities of dietary DM and OM, but had no effect on digestibilities of dietary starch (p=0.77) and CP (p=0.103). Fermenter pH, the concentration of volatile fatty acids (VFA) and daily VFA production were unaffected (p=0.159-0.517) by S-RDP levels. Molar percentages of acetate, propionate and butyrate were greatly affected by S-RDP levels (p=0.016-0.091), but unaffected by D (p=0.331-0.442). With increasing S-RDP levels and D, daily bacterial counts, daily microbial N production (DMNP) and microbial efficiency (MOEFF; grams of microbial N produced per kilogram of OM truly digested) were enhanced (p=0.001). The increased microbial efficiency with increasing S-RDP levels is probably the result of peptides or amino acids that served as a stimulus for optimal protein synthesis. The quantity of ruminal degradable protein from soy proteins required for optimum protein synthesis of non-structural carbohydrate-fermenting microbes appears to be equivalent to 9.5% of dietary fermented OM.
Meng, H.,Zhao, J.G.,Li, Z.H.,Li, H. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.9
The peroxisome proliferator-activated receptors (PPARs) are members of a superfamily of nuclear hormone receptors. Lots of studies in rodents and humans have shown that PPARs were involved in lipid metabolism and adipocyte differentiation. The main objective of this work was to detect the single nucleotide polymorphisms (SNPs) in whole coding regions of peroxisome proliferator-activated receptor alpha (PPAR-$\alpha$) and gamma (PPAR-$\gamma$) genes with approach of single strand conformation polymorphism (SSCP) in the chicken population of Arber Acres broiler, Hyline layer and three Chinese native breeds (Shiqiza, Beijing You, Bai'r). Two SNPs of C1029T and C297T were found in chicken PPAR-$\alpha$ and PPAR-$\gamma$ genes respectively and each SNP found three genotypes in the experimental populations. The results showed that the distribution frequency of 3 genotypes in Arber Acres broiler, Hyline layer and Chinese native breeds had significant differences on the PPAR-$\alpha$ and PPAR-$\gamma$ gene respectively (p<0.01). Furthermore, in the PPAR-$\alpha$ gene, the results of least square estimation for genotypes and body composition traits showed the BB genotype birds had higher abdominal fat weight (AFW) and percentage of abdominal fat (AFP) than AA genotype birds (p<0.05). From these we conjecture the PPAR-$\alpha$ and PPAR-$\gamma$ genes were suffered intensive selection during the long term commercial breeding and the PPAR-$\alpha$ gene may be a major gene or linked to the major genes that impact chicken fat metabolism and the SNPs could be used in molecular assistant selection (MAS) as a genetic marker for the chicken fatness traits.
Strategies for Worksite Health Interventions to Employees with Elevated Risk of Chronic Diseases
Meng, Lu,Wolff, Marilyn B.,Mattick, Kelly A.,DeJoy, David M.,Wilson, Mark G.,Smith, Matthew Lee Occupational Safety and Health Research Institute 2017 Safety and health at work Vol.8 No.2
Chronic disease rates have become more prevalent in the modern American workforce, which has negative implications for workplace productivity and healthcare costs. Offering workplace health interventions is recognized as an effective strategy to reduce chronic disease progression, absenteeism, and healthcare costs as well as improve population health. This review documents intervention and evaluation strategies used for health promotion programs delivered in workplaces. Using predetermined search terms in five online databases, we identified 1,131 published items from 1995 to 2014. Of these items, 27 peer-reviewed articles met the inclusion criteria; reporting data from completed United States-based workplace interventions that recruited at-risk employees based on their disease or disease-related risk factors. A content rubric was developed and used to catalogue these 27 published field studies. Selected workplace interventions targeted obesity (n = 13), cardiovascular diseases (n = 8), and diabetes (n = 6). Intervention strategies included instructional education/counseling (n = 20), workplace environmental change (n = 6), physical activity (n = 10), use of technology (n = 10), and incentives (n = 13). Self-reported data (n = 21), anthropometric measurements (n = 17), and laboratory tests (n = 14) were used most often in studies with outcome evaluation. This is the first literature review to focus on interventions for employees with elevated risk for chronic diseases. The review has the potential to inform future workplace health interventions by presenting strategies related to implementation and evaluation strategies in workplace settings. These strategies can help determine optimal worksite health programs based on the unique characteristics of work settings and the health risk factors of their employee populations.
Meng, Q.B.,Yang, G.S.,Lee, Y.S. Korean Society of Industrial and Engineering Chemi 2014 Journal of industrial and engineering chemistry Vol.20 No.4
Optipore V503, a commercial hypercrosslinked hydrophobic polymer adsorbent, was sulfonated to become hydrophilic to allow more efficient microwave-assisted desorption of adsorbed nonpolar volatile organic compounds (VOCs) such as benzene under humidified conditions. Compared to Optipore V503, the hydrophilic adsorbents showed reduced adsorption capacities towards benzene, but significantly improved microwave-assisted desorption efficiencies under a semi-continuous 600W microwave irradiation process. The increased desorption efficiency was mainly attributed to adsorbed water, which indirectly allowed heating of the polymer adsorbents to higher temperatures upon irradiation by microwaves.
Chen Meng,Caroline Cohrssen,Carrie G.L. Lau The Pacific Early Childhood Education Research Ass 2023 Asia-Pacific journal of research in early childhoo Vol.17 No.1
This paper presents a review of the literature on the perspectives on school readiness and the transition to school process of children, parents, kindergarten- and primary teachers in Mainland China. In addition, the ways in which parents and teachers support child transitions from kindergarten to primary school are examined. Forty-seven publications from three English databases and one Chinese database were included. On measures of cognitive and socio-emotional development, urban children were reported to outperform their rural counterparts, and girls outperformed boys. Compared with children of ethnic minority backgrounds, Han children demonstrated higher levels of cognitive and socio-emotional development than their peers. Children with special educational needs scored lower than typically developing children on assessments of school readiness. Kindergarten and primary teachers acknowledged the importance of socio-emotional development and approaches to learning, but differed on expectations relating to academic achievement and behavior. Family socioeconomic status (SES) and the extent to which parents prioritized academic skills were associated with parents’ beliefs, practices, and children’s school readiness. Authoritative parenting contributed to children’s socio-emotional, cognitive and language development on measures of school readiness. Research implications and future directions regarding the perceptions and practices involved in children’s transition to school are proposed.