824 resultados para Fair Work (Transitional Provisions and Consequential Amendments) Act 2009


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Intercultural Approaches to Cities and Spaces in Literature, Film, and New Media: a review of new work by Manzanas and Benito and Lopez-Varela and Net

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The transcription factors c-myb and GATA-2 are both required for blood cell development in vivo and in vitro. However, very little is known on their mechanism(s) of action and whether they impact on complementary or overlapping pathways of hematopoietic proliferation and differentiation. We report here that embryonic stem (ES) cells transfected with c-myb or GATA-2 cDNAs, individually or in combination, underwent hematopoietic commitment and differentiation in the absence of added hematopoietic growth factors but that stimulation with c-kit and flt-3 ligands enhanced colony formation only in the c-myb transfectants. This enhancement correlated with c-kit and flt-3 surface receptor up-regulation in c-myb-(but not GATA-2-) transfected ES cells. Transfection of ES cells with either a c-myb or a GATA-2 antisense construct abrogated erythromyeloid colony-forming ability in methyl cellulose; however, introduction of a full-length GATA-2 or c-myb cDNA, respectively, rescued the hematopoiesis-deficient phenotype, although only c-myb-rescued ES cells expressed c-kit and flt-3 surface receptors and formed increased numbers of hematopoietic colonies upon stimulation with the cognate ligands. These results are in agreement with previous studies indicating a fundamental role of c-myb and GATA-2 in hematopoiesis. Of greater importance, our studies suggest that GATA-2 and c-myb exert their roles in hematopoietic gene regulation through distinct mechanisms of action in nonoverlapping pathways.

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A rider to a US law, the Consolidated and Continuing Appropriations Act, 2013, known as the Farmer Assurance Provision, encourages the large-scale genetic modification and global distribution of agricultural crops, thereby undermining the Food and Agriculture Organization of the United Nations' determination that food security rests on biodiversity. The rider blocks the US Department of Agriculture's mandate to prohibit farmers from growing crops from biotechnological seeds where the courts have found that this farm practice may cause damage to human health and/or degrade the environment. Despite genetically modified organisms (GMOs) reducing unwanted traits in plants, the paper supports the UN's mission for biodiversity and that more long-term testing was (and is) needed for GMO products, developed from 1994 on, before a hasty piece of Congressional legislation as was made in this case.

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The problematic gestation of the Directive on temporary agency work shows the presence of several criticalities that there are also in the national transposition in relation to the principle of equal treatment and to the mechanisms for preventing abuse during successive assignments. From a first analysis it can be said that in some EU Member States only the derogations have been implemented and not the general principle of equal treatment. At the same time, the obligation of the Member States, contained in the Directive on temporary agency work, to establish mechanisms for preventing abuse during successive assignments is crucial, especially in the light of the recent case law of the EU Court of Justice in which the Court does not apply to the temporary agency workers the protective rules of the Directive on fixed-term contracts (see C-290/12 , Della Rocca).

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Includes summary of the Trade act of 1974 (Public law 93-618).