OTTO RICHARD GOTTLIEB, FATHER OF BRAZILIAN PHYTOCHEMISTRY
نویسندگان
چکیده
منابع مشابه
Phytochemistry of some Brazilian Plants with Aphrodisiac Activity
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The end of the 19th century was the starting point of many discoveries in the field of the neurophysiology. At that time, only basic technical approaches were available, and new discoveries depended on few results and lots of deductions. Furthermore, the scientific community was often debating on theoretical speculations and was often divided. I have chosen to present a German neurophysiologist...
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The emerging field of molecular epigenetics studies relatively stable changes in genetic activity that are not due to changes in the DNA sequence. Initial research results indicate a functional role for epigenetic mechanisms in neuron development and neuronal cell function. However, concepts that integrate these findings in an overall theory of psychobiological development have yet to be develo...
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*Professor of Medicine, T.N. Medical College (Retd.), Hon. Physician, Bhatia Hospital, Mumbai; **Consultant Internal Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai O Loewi (1873 1961) studied medicine at the University of Strasbourg and obtained his medical degree in 1896. Thereafter he worked in London under Starling. In 1905, he went to Austria and held professorial positions at the Un...
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We give a counterexample to a conjecture of D.H. Gottlieb and prove a strengthened version of it. The conjecture says that a map from a finite CW-complex X to an aspherical CW-complex Y with non-zero Euler characteristic can have non-trivial degree (suitably defined) only if the centralizer of the image of the fundamental group of X is trivial. As a corollary we show that in the above situation...
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ژورنال
عنوان ژورنال: SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY
سال: 2012
ISSN: 0104-5431,2674-6891
DOI: 10.48141/sbjchem.v20.n20.2012.7_revista_2012a.pdf