Why leaves of some trees turn red in autumn has puzzled biologists for decades, as just before leaf fall the pigments causing red coloration are newly synthesized. One idea to explain this apparently untimely investment is that red colour signals the tree's quality to herbivorous insects, particularly aphids. However, it is unclear whether red leaves are indeed less attractive to aphids than gr...

We consider a Green Public Procurement setting where the procurer provides bid discount to environment-friendly technologies foster their use. assume that, before auction, firms may switch green technology via publicly observable costly investment. show that investment acts as signaling device. This mitigates effect of incomplete information on firms’ costs, thereby triggering more competitive ...

Observations on the mating and parental behaviour of the green poison-dart frog were used to test two hypotheses for the function of female-female competition in this species. The hypothesis that females compete to monopolize as many mates as possible was not supported because: (1) male territoriality was associated with competition for females; (2) intra-female competition for mates was not mo...

• Since Wilkie’s result [9] (which established that the elementary theory Texp of (R, exp) is model complete and o-minimal), many o-minimal expansions of the reals have been investigated. The problem of constructing nonarchimedean models of Texp (and more generally, of an ominimal expansion of the reals) gained much interest. • In [2] it was shown that fields of generalized power series cannot ...

The Extraordinary Magnetoresistance (EMR) effect is a change in the resistance of a device upon the application of a magnetic field in hybrid structures, consisting of a semiconductor and a metal. The underlying principle of this phenomenon is a change of the current path in the hybrid structure upon application of a magnetic field, due to the Lorentz force. Specifically, the ratio of current, ...

The article examines the development and formation of green finance in Kazakhstan. It is noted that now becoming an integral component achieving global national sustainable goals a economy, defining new environmentally contours prospects for international financial system through active growth «green» segment market responsible investment. Financial economic instruments «sphere» specifics ?gree...

www.ethnobotanyjournal.org/vol3/i1547-3465-03-201.pdf Ethnobotany Research & Applications 3:201-207 (2005) Victoria Reyes-García, ICREA-Institut de Ciència i Tecnologia Ambiental, Universitat Autónoma de Barcelona, 08193 Bellatera, Barcelona, SPAIN. [email protected] Victoria Reyes-Garcia, Vincent Vadez & Tomás Huanca, Sustainable International Development Program, Heller School for Social Po...

The usual focus in authorship studies is on authorship attribution, i.e. determining which author (of a given set) wrote a piece of unknown provenance. The usual setting involves a small number of candidate authors, which means that the focus quickly revolves around a search for features that discriminate among the candidates. Whether the features that serve to discriminate among the authors ar...

The purpose of the research is to systematize and clarify scientific theoretical approaches determining essence economic content environmentally responsible investment within framework ESG-investment concept study possibility their implementation in Kazakhstani practice. Methodology – methods included abstraction, inductive, deductive comparative analysis. In addition, special were applied: com...