BACKBONE REARRANGEMENT IN DOLABRADIENE

Balanced Chromosomal Rearrangement in Recurrent Spontaneous Abortions: A Case Report

One of the major causes of spontaneous abortion before the fourth month of pregnancy is chromosomal abnormalities. We report an unusual case of a familial balanced chromosomal translocation in a consanguineous couple who experienced 4 spontaneous abortions. Chromosomal studies were performed on the basis of G-banding technique at high resolution and revealed 46, XX, t (16 6) (p12 q26) and 46, X...

An Interesting Backbone Rearrangement and Novel Derivatives from the Biotransformation of Trachyloban-19-oic Acid by Rhizopus stolonifer

O ácido traquilobânico (2) foi incubado com Rhizopus stolonifer, com o objetivo de se sintetizar novos derivados diterpênicos. Após vinte dias, quatro metabólitos foram extraídos, isolados e caracterizados, dos quais dois apresentaram-se hidroxilados nas posições 7β (3) e 17 (5). Dois derivados rearranjados também foram isolados, os ácidos ent-16β-hidroxi-caur-11-en-19-óico (4) e 9α,16β-diidrox...

That Backbone

Modeling Congestion in Backbone Routers

Traffic engineering models based on end-to-end loss probabilities and delays do not scale well to fast backbone links. In this paper, we investigate the nature of congestion events in highly aggregated flows. An examination of congestion events shows distinct phases of queue buildup, packet dropping followed later by TCP reaction, and queue clearing. Evidence of the existence and characteristic...

Design and Analysis of a Novel Tendon-less Backbone Robot

A new type of backbone robot is presented in this paper. The core idea is to use a cross shape mechanism with the principle of functioning of the scissors linkages, known as a pantograph. Although this continuum arm acts quite similar to tendon-driven robot, this manipulator does not include any tendon in its structure. This design does not suffer from the weaknesses of the continuum design suc...