We present ab-initio calculations of secondary isotope effects on NMR chemical shieldings.The change of Desktop Vaporizers the NMR chemical shift of a certain nucleus that is observed if another nucleus is replaced by a different isotope can be calculated by computing vibrational corrections on the NMR parameters using electronic structure methods.

In the history of forming of visual anthropology as a method ofintercultural communication in Russia up to the present time documentarycinematograph takes a dominant lead.Taking into account the change ofideology and the information technologies’ development level there can bemarked several stages:• Already in the pre-revolutionary period the d

The emergent universe provides a possible method to avoid the Big Bang singularity by considering that the universe stems from a stable Einstein static universe rather than the singularity.Since the Einstein static universe exists before inflation, Crop Tee it may leave some relics in the CMB power spectrum.In this paper, we analyze the stability c

This paper outlines a cognitive and comparative perspective on human rhythmic cognition that emphasizes a key distinction between pulse perception and meter perception.Pulse perception involves the extraction of a regular pulse or 'tactus' from a stream of events.Meter perception involves grouping of events into hierarchical trees with diff