CHEMISTRY: Powerful Twister

Molecular Twister: A Game for Exploring Solution Chemistry†

Cryptanalysis of Twister

In this paper, we present a pseudo-collision attack on the compression function of all Twister variants (224,256,384,512) with complexity of about 2 compression function evaluations. Furthermore, we show how the compression function attack can be extended to construct collisions for Twister-512 with complexity of about 2. 1 Description of Twister The hash function Twister is an iterated hash fu...

In situ click chemistry: a powerful means for lead discovery.

Combinatorial chemistry and parallel synthesis are important and regularly applied tools for lead identification and optimisation, although they are often accompanied by challenges related to the efficiency of library synthesis and the purity of the compound library. In the last decade, novel means of lead discovery approaches have been investigated where the biological target is actively invol...

Electrochemical Sensors: A Powerful Tool in Analytical Chemistry

Sensores potenciométricos, amperométricos e condutométricos são sensores eletroquímicos com imensa aplicação nas áreas de meio ambiente, indústria e análises clínicas. O presente trabalho apresenta uma revisão generalizada dos aspectos fundamentais, os desenvolvimento e a contribuição destes sensores na área de química analítica, e reporta alguns aspectos relevantes dos avanços na área de senso...

twister - a P2P microblogging platform

This paper proposes a new microblogging architecture based on peerto-peer networks overlays. The proposed platform is comprised of three mostly independent overlay networks. The first provides distributed user registration and authentication and is based on the Bitcoin protocol. The second one is a Distributed Hash Table (DHT) overlay network providing key/value storage for user resources and t...