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  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 360 (1992), S. 477-481 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] To test the effects of Hox-7.1 on cellular differentiation and proliferation, Hox-7.1 cDNA carried by an expression vector in either sense or antisense orientation was stably transfected into F3 myoblasts (see Fig. 1 legend). The expression of Hox-7.1 in the transfectants was analysed by ...
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0730-2312
    Keywords: Msx-1 ; Msx-2 ; homeobox ; adhesion ; sorting ; cadherin ; Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Msx-1 and Msx-2 are two closely related homeobox genes expressed in cephalic neural crest tooth buds, the optic cup endocardial cushions, and the developing limb [Hill and Davidson, 1991; Monaghan et al., 1991; Robert et al., 1991]. These sites correspond to regions of active cell segregation and proliferation under the influence of epithelial-mesenchymal cell interactions [Brown et al., 1993; Davidson et al., 1991], suggesting that Msx-1 and Msx-2 regulate cell-cell interactions. We have investigated the potential relationship between expression of the Msh homeobox genes (Msx-1 and Msx-2) and cadherin-mediated cell adhesion and cell sorting. We report that cell lines stably expressing Msx-1 or Msx-2 differentially sort on the basis of Msh gene expression. We demonstrate in vitro that initial cell aggregation involves calcium-dependent adhesion molecules (cadherins) and that Msh genes regulate cadherin-mediated adhesion. These results support the hypothesis that Msh genes play a role in the regulation of cell-cell adhesion and provide a link between the genetic phenomena of homeobox gene expression and cellular events involved in morphogenesis, including cell sorting and proliferation. J. Cell. Biochem. 70:22-28, 1998. © 1998 Wiley-Liss, Inc.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Publication Date: 2017-03-22
    Description: Real-time reliable determination of binding kinetics of DNA hybridization using a multi-channel graphene biosensor Nature Communications, Published online: 21 March 2017; doi:10.1038/ncomms14902 Monitoring DNA binding and single-base mismatches accurately in real time is difficult, especially for miniaturized devices. Here the authors report a graphene field-effect transistor array capable of reliably measuring DNA hybridization kinetics and affinity at the picomolar level.
    Electronic ISSN: 2041-1723
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 4
    Publication Date: 2015-08-01
    Description: Collapsed gully erosion constantly plagues the sustainability of rural areas in China. To control collapsed gully erosion, an ecological and economic approach, which uses tree plantation to gain economic benefits and control soil erosion, has been widely applied by local governments in Southern China. However, little is known about the economic feasibility of this new method. The objective of this study was to determine the effectiveness and economic benefits of the new method. Based on a case study in Changting County, Southeast China, two farms were selected to represent a timber tree plantation and a fruit tree plantation, respectively. The Annual Capital Capitalization Method and Return on Investment (ROI) were selected to conduct cost-benefit analysis. In contrast to previous studies, we found that the new approach was far from economic. The value of the newly-built forestland in Sanzhou Village and Tufang Village is 2738 RMB ha−1 and 5477 RMB ha−1, respectively, which are extremely lower than the costs of ecological restoration. Meanwhile, the annual ROI is −3.60% and −8.90%, respectively, which is negative and also far poorer than the average value of forestry in China. The costs of conservation were substantially over the related economic benefits, and the investors would suffer from greater loss if they invested more in the conservation. Low-cost terraces with timber trees had less economic loss compared with the costly terraces with fruit tree plantation. Moreover, the cost efficiency of the new approaches in soil conservation was also greatly poorer than the conventional method. The costs of conserving one ton soil per year for conventional method, new method for planting timber trees, and planting fruit trees were 164 RMB, 696 RMB, and 11,664 RMB, respectively. Therefore, the new collapsed gully erosion control methods are uneconomic and unsuitable to be widely carried out in China in the near future.
    Electronic ISSN: 2071-1050
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by MDPI Publishing
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