This special issue is devoted to various areas in Theoretical Computer Science. The issue took inspiration from the 13th Italian Conference on Theoretical Computer Science (ICTCS 2012), held at University of Insubria in Varese, Italy, on September 19-21 2012. The special issue contains seven papers, that have been originated from the work in progress presented at the conference, and that have b...

Citation for published version (APA): Mogensen, T. Æ. (2013). A comparison of well-quasi orders on trees. In A. Banerjee, O. Danvy, K-G. Doh, & J. Hatcliff (Eds.), Semantics, Abstract Interpretation, and Reasoning about Programs: essays dedicated to David A. Schmidt on the occasion of his sixtieth birthday, Manhattan, Kansas, USA, 19-20th September 2013 (pp. 30-40). (Electronic Proceedings in T...

The information-theoretical entropy is an effective measure of uncertainty connected with an information source. Its transfer from the classical probabilistic information theory models to the fuzzy set theoretical environment is desirable and significant attempts were realized in the existing literature. Nevertheless, there are some open topics for analysis in the suggested models of fuzzy entr...

post – materialism and political science development dr. hossein salimi in social science area, some think that scientific studies require and content a hidden materialism. they believe a sort of interconnection and synchronization between materialism and scientific studies, however emerging and expansion of post-materialism school reveals that it is not right. in the article it will be endeavo...

Detergents are a viable method for earwax removal. Specifically, bile salts such as cholate and deoxycholate, work well for this function especially when placed in alkaline solution provided by sodium phosphate in the presence of 0.1 M sodium chloride. In vitro studies reveal these agents to quickly penetrate earwax, as visualized by yellowish color of the solution and lack of cohesion of the r...

Two properties of optical transmissions, namely, unidirectional propagation and predictable propagation delay, make it possible to pipeline packet transmissions in alloptical networks. In this paper, we study the problem of scheduling All-to-All Personalized Communication (AAPC) in unidirectional TDM/WDM rings with pipelined transmissions, which can achieve a much higher bandwidth utilization t...

Massive virtual collaborations (MVC) involve large numbers of mostly unpaid contributors collectively creating various kinds of new content. We propose a model of motivations for contribution to MVC that uses helping behaviour as a framework to integrate various theoretical perspectives, namely work motivation and social movement theory. We argue that what was previous considered a single, stat...

Heterogeneous firms are at the heart of both the New New International Trade Theory and the Micro-econometrics of International Firm Activities. One important aim of microeconometric studies is to uncover stylized facts that hold over space and time, and that can both inspire theoretical models that are based on “realistic” assumptions, and inform policy debates in an evidence-based way. Which ...