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75篇 您的检索式:作者名="Freking"
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1Changing Connectivities of Chinese Cities in the World City Network,2010–2016显示文摘Against the backdrop of the sizable economic growth of China in recent years, this paper uses the most recent data gathering of the Globalization and World Cities(Ga WC) research network to update and supplement earlier research on the shifting global connectivity of Chinese cities. The update consists of an evaluation of the connectivity of Chinese cities in 2016, the supplement of an analysis of the changing position of Chinese cities in the world city network between 2010 and 2016. To this end, we build on a specification of the world city network as an ‘interlocking network' in which producer services firms play the crucial role in city network formation. Information about the presence of leading producer services firms in cities in 2010 and 2016 is used as the input to a bipartite network projection algorithm in order to measure cities' network connectivity. The first set of results discusses the geographies of urban connectivity in the world city network in 2016. The second set of results discusses standardized measures of change to reveal the major dimensions of the transformations between 2010 and 2016. We find that, with the exception of Hong Kong, Macao and Kaohsiung of Taiwan, all Chinese cities record connectivity gains. This wholesale rise in connectivity is nonetheless geographically uneven, with above all Beijing, Chengdu/Chongqing and Changsha/Wuhan becoming more connected. We conclude that the wholesale rise of Chinese cities in the world city network and their changing trajectories in the post-crisis era are embedded in shifting external and internal political economies.Ben DERUDDER CAO Zhan LIU Xingjian SHEN Wei DAI Liang ZHANG Weiyang Freke CASET Frank WITLOX Peter J.TAYLOR 2018Chinese Geographical Science2018,28,2:17
2Placental accommodations for transport and metabolism during intra-uterine crowding in pigs显示文摘Litter size and birth weights are limited by uterine capacity, defined as the ability of the uterus to maintain the appropriate development of some number of conceptuses. Uterine capacity is the result of the combined effects of uterine, placental and embryo/fetal function. The number of living conceptuses that the uterus is capable of supporting is greater during early gestation compared to later gestation. Plots of log fetal weight versus log placental weight also indicate that fetal weights are less sensitive to reduced placental weight(and therefore reduced intrauterine space) in early gestation compared to late gestation. However, even in late gestation,mechanisms still exist that maintain fetal growth when the size of the placenta is reduced. One such mechanism is likely to be improved development of the folded placental-epithelial/maternal-epithelial bilayer. Fold depth, and therefore the maternal fetal interactive surface, increases as gestation advances and is greater in placenta from small fetuses. On the fetal side of the placenta, the epithelial bilayer is embedded in stromal tissue. Glycosaminoglycans are major components of stroma, including hyaluronan and heparan sulfate. Hyaluronidases and heparanases are present within placental tissues, and likely play roles in modification of stromal components to facilitate fold development. Glycosaminoglycans are polymers of forms of glucose(glucosamine, glucuronic acid, iduronic acid)suggesting that glycosaminoglycan synthesis may compete with the glucose needs of the developing fetus.Pig conceptuses are fructogenic, such that a substantial portion of glucose transferred from mother to fetus is converted to fructose. Fructose is an intermediate product in the synthesis of glucosamine from glucose, and glucosamine is linked to regulation of trophoblast cell proliferation through regulation of m TOR. These findings suggest a link between glucose, fructose, glucosamine synthesis, GAG production, and placental morphogenesis,but the details of these interactions remain unclear. In addition, recent placental epithelial transcriptome analysis identified several glucose, amino acid, lipid, vitamin, mineral and hormone transporter mechanisms within the placenta. Further elucidation of mechanisms of placental morphogenesis and solute transport could provide clues to improving nutrient transport to the pig fetus, potentially increasing litter size and piglet birth weights.Jeffrey L Vallet Anthony K Mc Neel Jeremy R Miles Bradley A Freking 2015Journal of Animal Science and Biotechnology2015,6,2:5
3The expression of the sex steroid-synthesizing enzymes CYPllA1, 313-HSD, CYP17, and CYP19 in gonads and adrenals of adult and developing zebra fish 显示文摘Freking F Nazairians T Schlinger B A 2000General and Com- parative Endocrinology2000,119,2:1
4Extensive genomic conservation of catde micro satellite heterozygosity in sheep显示文摘 Freking B A Kappes S M Leymaster K A Crawford A M Stone R T Beattie 1997Animal Genetics1997,28,:1
5Evaluation of the ovine callipyge locus:Relative chromosomal position and gene action显示文摘Freking BA Keele JW beattie CW 1998Anim Sci1998,76,10:1
6Abnormal postnatal maintenance of elevated DLK1 transcript levels in callipyge sheep显示文摘Murphy S K Freking B A Smith T P 2005Mamm Cenome2005,16,3:1
7Extensive genomic conservation of cattle micro satellite heterozygosity in sheep 显示文摘De GORTARI M J FREKING B A KAPPES S M 1997Anim Ge- netics1997,28,:1
8The eft ect of chronic low back pain on size and contraction of the lumbar multifi dus muscle 显示文摘Wallwork TL Stanton WR Freke M 2009Man Ther2009,14,5:1
9A secondgeneration linkage map of the sheep genome 显示文摘De Gortari MJ Freking BA Cuthbertson RP 1998Mamm Genome1998,9,3:1
10Hepatitis C in the general population of various ethnic origins living in the Netherlands: Should non-Western migrants be screened?显示文摘Anouk T. Urbanus Thijs J.W. van de Laar Anneke van den Hoek Freke R. Zuure Adrianus G.C.L. Speksnijder Gijs G.G. Baaten Titia Heijman Henrike J. Vriend Eline L.M. Op de Coul Roel A. Coutinho Maria Prins 2011Journal of Hepatology2011,,6:1
11Extensive genomic conservation of cattle microsatellite heterozygosity in sheep显示文摘Gortari M Freking B A Kappes S M 1997Animal Genetics1997,28,:1
12A second-generation linkage map of the sheep genome 显示文摘de Gortari M J Freking B A Cuthbertson R P 1998Mammalian Genome1998,9,3:1
13Allelic variation in the erythropoietin receptor gene is associated with uterine capacity and litter size in swine显示文摘VALLET J L FREKING B A LEYMASTER K A 2005Anim Genet2005,36,2:1
14A second-generation linkage map of the sheep genome显示文摘Maurico J. Gortari Brad A. Freking Rachel P. Cuthbertson Steven M. Kappes John W. Keele Roger T. Stone Kreg A. Leymaster Ken G. Dodds Allan M. Crawford Craig W. Beattie 1998Mammalian Genome1998,,3:1
15Abnormal postnatal maintenance of elevated DLK1 transcript levels in callipyge sheep显示文摘Susan K. Murphy Brad A. Freking Timothy P.L. Smith Kreg Leymaster Catherine M. Nolan Andrew A. Wylie Heather K. Evans Randy L. Jirtle 2005Mammalian Genome2005,,3:1
16Allelic variation in the erythropoietin receptor gene is associated with uterine capacity and litter size in swine 显示文摘Vallet J L Freking B A LeYmaster K A 2005Anita Genet2005,3,:1
17Genomie Organization and Genetic Mapping of the Bovine PREF-1 Gene 显示文摘Fahrenkrug S C Freking B A Smith T P 1999Biochem Biophys Res Commun1999,264,3:1
18Evaluation of the Ovine callipyge locus: I Relative chromosomal position and gene action显示文摘Freking B A Keele J W Beattie C W at al 1998Anim Sci1998,,76:1
19Extensive genomic conservation of cattle microsatellite heterozygosity in sheep显示文摘DeGortari M J Freking B K Kappes S M 1997Animal Genetics1997,28,:1
20The effect of chronic low back pain on size and contraction of the lumbar rnultifldus muscle 显示文摘Wallwork TL Stanton WR Freke M 2008Man Ther2008,14,5:1
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