Results 31 to 40 of about 220,610 (269)
Using Fractionation and Diffusion Ordered Spectroscopy to Study Lignin Molecular Weight.
ChemistryOpen, 2019 Recent reports demonstrate that applications of the biopolymer lignin can be helped by the use of a fraction of the lignin which has an optimal molecular weight range.
James R. D. Montgomery +3 more
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Frontiers in Physiology, 2017 Purpose: Complex fractionated atrial electrograms (CFAE)-guided ablation after pulmonary vein isolation (PVI) has been used for persistent atrial fibrillation (persAF) therapy.
Tiago P. Almeida +11 more
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Radiation Oncology, 2011 Background The increased resistance of hypoxic cells to ionizing radiation is usually believed to be the primary reason for treatment failure in tumors with oxygen-deficient areas.
Wenzl Tatiana, Wilkens Jan J
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Molecules, 2020 Withania coagulans contains a complex mixture of various bioactive compounds. In order to reduce the complexity of the plant extract to purify its phytochemical biomolecules, a novel fractionation strategy using different solvent combination ratios was ...
Murtaza Hasan +9 more
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Frontiers in Marine Science, 2022 Benthic nitrogen cycling in the Mauritanian upwelling region (NW Africa) was studied in June 2014 from the shelf to the upper slope where minimum bottom water O2 concentrations of 25 µM were recorded.
Andrew W. Dale +7 more
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Fractional hypergraph isomorphism and fractional invariants
CoRR, 2020 Fractional graph isomorphism is the linear relaxation of an integer programming formulation of graph isomorphism. It preserves some invariants of graphs, like degree sequences and equitable partitions, but it does not preserve others like connectivity, clique and independence numbers, chromatic number, vertex and edge cover numbers, matching number ...
Flavia Bonomo-Braberman, Dora Tilli
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Proceedings of the National Academy of Sciences, 2019 An approach to the coalescent, the fractional coalescent ( f -coalescent), is introduced. The derivation is based on the discrete-time Cannings population model in which the variance of the number of ...
Mashayekhi, Somayeh, Beerli, Peter
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Inequality and Fractionalization [PDF]
SSRN Electronic Journal, 2010 We present evidence that ethnic fragmentation explains variations in per capita income, institutions, and schooling better than income inequality when both are treated as endogenous. To do so, we identify instruments for ethnic fractionalization and income inequality based on historical experience.
Casey, Gregory P., Owen, Ann L.
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Frontiers in Oncology, 2017 Background/introductionEarly reports of stereotactic body radiation therapy (SBRT) for pancreatic ductal adenocarcinoma (PDAC) used single fraction, but eventually shifted to multifraction regimens.
Philip Anthony Sutera +8 more
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The fractional mixed fractional brownian motion and fractional brownian sheet [PDF]
ESAIM: Probability and Statistics, 2007 Summary: We introduce the fractional mixed fractional Brownian motion and fractional Brownian sheet, and investigate the small ball behavior of its sup-norm statistic. Then, we state general conditions and characterize the sufficiency part of the lower classes of some statistics of the above process by an integral test.
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