A21A
National Institutes of Health
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In this work, we discuss about some applications of the notion of fundamental group to cell complexes. We prove that the…
Introduction: Ureilitic meteorites are ultramafic rocks with highly depleted REE abundance, while showing primitive signatures…
In the course of our screening for new antibiotics, we have found heneicomycin (antibiotic A21A)1) in culture broth of a newly…