In clinical practice, a communication between a doctor and his/her patient could be an interesting observation. Individual personality can significantly influence the interpersonal communication and its outcome during such interaction. Human behaviors could be likened to the acids and bases in organic chemistry. While extremes of pH prove to be corrosive and caustic respectively, neutral pH is ...

The design of a general knowledge base for labeled graphs is presented. The design involves a partial ordering of graphs represented as subsets of nodes of a universal graph. The knowledge base’s capabilities of fast retrieval and self-organization are a result of its ability to recognize common patterns among its data items. The system is being used to support a knowledge base in Organic Chemi...

An efficient and accurate analytic gradient method is presented for Hartree-Fock and density functional calculations using multiresolution analysis in multiwavelet bases. The derivative is efficiently computed as an inner product between compressed forms of the density and the differentiated nuclear potential through the Hellmann-Feynman theorem. A smoothed nuclear potential is directly differe...

INTRODUCTION Many are the circumstances in which action–perception dissociations have been observed (e.g. [1], [2]). Among the best known cases there are the pictorial illusions which induce errors in perception but cannot deceive a motor act. It is not yet clear however in which other conditions this separation could be noticed [3]. Following the work of Dubrowski [4] and Zago [5] we wanted to...

Two DNA duplexes of identical sequence and 35 nt in length were synthesized by an original and a highly improved version of phosphoramidite chemistry. By base composition analysis, DNA synthesized by improved chemistry (termed DMTS-imp) contained no detectable modified bases while DNA synthesized by the original chemistry (termed DMTS-std) had a large number of modifications. Under optimal reac...

Natural product chemistry is a branch of organic chemistry that touches upon many other fields of science, especially applied sciences such as medicine, agriculture, and engineering. It is fundamentally a basic science, involved in the discovery, characterization and cataloging of new chemical substances found in nature. Among other basic scientists, biologists and ecologists recognized some ti...

SYNTHESIS OF BIODIESEL: A CONTEXTUALIZED EXPERIMENT PROPOSAL FOR THE GENERAL CHEMISTRY LABORATORY. The contextualized understanding of concepts in Chemistry by students from other areas is a challenging task. In this experiment, the synthesis of biodiesel is done by base catalyzed transesterification of refined soy oil with methanol at room temperature and common glassware found in any chemistr...

Multielectron redox chemistry involving small molecules such as O2, H2O, N2, CO2, and CH4 is intrinsic to the chemical challenges surrounding sustainable, low-carbon energy generation and exploitation. Compounds with more than one metal reaction site facilitate this chemistry by providing both unique binding environments and combined redox equivalents. However, controlling the aggregation of me...

The coordination chemistry of transition metal complexes has been progressing at a tremendous pace. These complexes were finding use in the field of homogeneous catalysis, analytical chemistry and biological system. The presence of thiocyanto group in mixed ligand coordinated complexes of transition metal was reported to have an ability to influence the biochemical behaviour of the complexes. C...

AquaEnv (Hofmann et al. 2010b) is an integrated development toolbox for aquatic chemical model generation focused on (ocean) acidification and CO2 air-water exchange. It contains ❼ All elements necessary to model the pH, the related CO2 air-water exchange, as well as aquatic acid-base chemistry in general for an arbitrary marine, estuarine or freshwater system. ❼ A suite of tools to visualize t...