856 resultados para Pennsylvania Society for Promoting the Abolition of Slavery.
Resumo:
In January 2012, Poland witnessed massive protests, both in the streets and on the Internet, opposing ratification of the Anti-Counterfeiting Trade Agreement, which triggered a wave of strong anti-ACTA movements across Europe. In Poland, these protests had further far-reaching consequences, as they not only changed the initial position of the government on the controversial treaty but also actually started a public debate on the role of copyright law in the information society. Moreover, as a result of these events the Polish Ministry for Administration and Digitisation launched a round table, gathering various stakeholders to negotiate a potential compromise with regard to copyright law that would satisfy conflicting interests of various actors. This contribution will focus on a description of this massive resentment towards ACTA and a discussion of its potential reasons. Furthermore, the mechanisms that led to the extraordinary influence of the anti-ACTA movement on the governmental decisions in Poland will be analysed through the application of models and theories stemming from the social sciences. The importance of procedural justice in the copyright legislation process, especially its influence on the image of copyright law and obedience of its norms, will also be emphasised.
Resumo:
Cellular invasion represents a critical early step in the metastatic cascade, and many proteins have been identified as part of an “invasive signature.” The non-receptor tyrosine kinase Src is commonly upregulated in breast cancers, often in conjunction with overexpression of EGFR. Signaling from this pathway stimulates cell proliferation, migration, and invasion and frequently involves proteins that regulate the cytoskeleton. My data demonstrates that inhibition of Src, using the small-molecule inhibitor dasatinib, impairs cellular migration and invasion. Furthermore, Src inhibition sensitizes the cells to the effects of the chemotherapeutic doxorubicin resulting in dramatic, synergistic inhibition of proliferation with combination treatments. The Src-targeted protein CIP4 (Cdc42-interacting protein 4) associates with curved plasma membranes to scaffold complexes of Cdc42 and N-WASp. In these experiments, I show that CIP4 overexpression correlates with triple-negative biomarker status, cellular migration, and invasion of (breast cancer cells. Inhibition of CIP4 expression significantly decreases migration and invasion. Furthermore, I demonstrate the novel finding that CIP4 localizes to invadopodia, which are finger-like projections of the actin cytoskeleton that are associated with matrix degradation and cellular invasion. Depletion of CIP4 in invasive cells impairs the formation of invadopodia and the degradation of gelatin. Therefore, CIP4 is a critical component of the invasive phenotype acquired by human breast cancer cells. In this body of work, I propose a model in which CIP4 promotes actin polymerization by stabilizing the active conformation of N-WASp. CIP4 and N-WASp are both phosphorylated by Src, implicating this pathway in Src-dependent cytoskeletal rearragement. This represents a novel role for F-BAR proteins in migration and invasion.
Resumo:
Among the many thousand scarabs, scaraboids and other stamp-seal amulets unearthed in Iron Age contexts in Cis- and Transjordan, there are many such seals showing royal Egyptian imagery on their bases. Focusing mainly on Pharaonic motifs, the paper aims to catalogue the principal iconemes, to trace their development throughout the Iron Ages and to extrapolate their significance vis-à-vis the contemporary glyptic assemblages. As will be shown, the royal imagery of the Egyptian king underwent considerable changes during pre-monarchic and monarchic times in Israel/Judah. This allows – to some extent – deducing the perception of the ‘image’ of the Egyptian king in this part of the Southern Levant at the close of the second and during the first centuries of the first millennium BCE. While the local seal production not only vividly copied earlier and contemporary Egyptian prototypes, it also developed idiosyncratic ‘Pharaonic’ motifs that were produced for the local market. On the other hand, imported Egyptian glyptic goods – such as scarabs and other amulet types – reveal further facets of the consumer behavior. They, too, shed light upon the ideological and religious preferences of the local population and illuminate the development of the vernacular attitude towards the Pharaonic symbols of power – including their obvious political and sacred connotations.
Resumo:
This is a contribution to an expert opinion to be submitted to Intergovernmental Committee of the UNESCO Convention on Cultural Diversity. It seeks to identify recommendations for action in the fields of education, participation of the civil society and sustainable development (under respectively Articles 10, 11 and 13 of the Convention), which are to be specifically targeted taking into account the changed and changing conditions of the digital networked environment.