Results 211 to 220 of about 321,360 (252)
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Intermediate-band photometry of late-type stars.
Publications of the Astronomical Society of the Pacific, 1976In four-color, intermediate-band photometry of late-type stars, difficulty has been experienced in reproducing the Str5mgren system as defined by standard stars published by Crawford and Barnes. The difficulty is believed to be connected with the fact that an international, bulk order for filters has produced a considerably narrower V filter than that ...
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Studies on the late steps of (+) pisatin biosynthesis: Evidence for (−) enantiomeric intermediates
Phytochemistry, 2006Pisatin, a 6a-hydroxyl-pterocarpan phytoalexin from pea (Pisum sativum L.), is relatively unique among naturally occurring pterocarpans by virtue of the (+) stereochemistry of its 6a-11a C-C bond. However, pisatin synthesizing pea tissue has an isoflavone reductase, first identified in alfalfa, which acts on the (-) antipode.
Gregory L, DiCenzo, Hans D, VanEtten
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Intermediate to late results of surgical relief of vascular tracheobronchial compression
European Journal of Cardio-Thoracic Surgery, 1992Since 1979, a total of 69 infants and children aged 0.1 to 11.9 (median 0.7) years required surgical intervention for: double aortic arch (26), anomalous origin of innominate artery (26), right aortic arch with left ligamentum arteriosum (9), pulmonary artery sling (5), retroesophageal right subclavian artery (3).
P, Horváth +7 more
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Enc1 expression in the chick telencephalon at intermediate and late stages of development
Journal of Comparative Neurology, 2009AbstractIn this work we studied the regional expression pattern of the Enc1 gene in the chick embryo telencephalon at intermediate and late stages of development, bearing on architectonic groupings and boundaries of current interest. In general, the Enc1 signal shows a markedly heterogeneous areal pattern of expression throughout the telencephalon ...
García Calero, Elena, Puelles, Luis
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Total synthesis of LewisX using a late-stage crystalline intermediate
Carbohydrate Research, 2015Herein, we report on a highly efficient synthesis of a crystalline protected Lewis(X) trisaccharide that was converted to Lewis(X) following global deprotection. The trisaccharide was prepared in a highly convergent synthesis (seven steps, longest linear sequence) and in a 38% overall yield using a strategy that involved the regioselective ...
Stefan, Munneke +4 more
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Electrochemical bromination of late stage intermediates and drug molecules
Tetrahedron Letters, 2017Abstract Aromatic C H bromination is one of the applications of late stage functionalization that provides precursors for generation of radio-labelled compounds to support drug metabolism and pharmacokinetic (DMPK) studies or provide a “handle” for further functionalization to expand SAR studies without having to resort to de novo synthesis ...
Zheng Tan +7 more
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[Intermediate and late changes in human cardiac graft].
Archives des maladies du coeur et des vaisseaux, 1991Chronic rejection, the most serious complication in long-term survivors of cardiac transplantation, was studied in 5 cardiac grafts obtained at retransplantation and in 15 post-mortem studies of patients who had survived 3 months to 10 years after transplantation. The usual clinical presentation was cardiac failure.
G, Chomette +3 more
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PUMAMARCA; A LATE INTERMEDIATE PERIOD SITE NEAR OLLANTAYTAMBO
Ñawpa Pacha, 1980The architectural remains at the site of Pumamarca (Department of Cuzco, Pera) represent a style not identical to any style discussed in the literature hut most similar to Late Intermediate Period styles described by Kendall (1976). Comparison with Kendall's data suggests that Pumamarca belongs to the period immediately preceding the Inca Empire and ...
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