Results 251 to 260 of about 107,340 (312)

Quality of Head and Neck Diffusion-weighted MR Imaging Using a Combination of the Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction (PROPELLER) Sequence and Deep Learning Reconstruction. [PDF]

Magn Reson Med Sci
Fujiwara T, Fujima N, Hamaguchi H, Ishizaka K, Kudo K.   +4 more
europepmc   +1 more source

Physicochemical Stability of Insulin and Analogues in Saline Infusion: Screening for Amyloid and Amorphous High-Molecular-Weight Material. [PDF]

ACS Omega
da Cruz E Silva JG, de Sá Ribeiro F, Lima LMTR.   +2 more
europepmc   +1 more source

Optimisation and Validation of a Quantitative Method for the Analysis of Polymers of Nanoplastics in Human Faeces. [PDF]

Molecules
Torres E, Obon M, Moreno V, Moratalla-Navarro F, Esquena J, Llorca M, Farré M.   +6 more
europepmc   +1 more source

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R-DLS: An Improved DLS Algorithm

2008 Seventh International Conference on Grid and Cooperative Computing, 2008
As dynamic-level scheduling algorithm does not consider the risk taken by resource nodes and users' demand, it proposes an analytic hierarchy process approach (AHP) based improved DLS algorithm. By such AHP approach, it manages the task provided by users, and obtains the weight value which reflects users' demand.
Wang Shuling
exaly   +2 more sources

New Synthesis of dl-sativene, dl-copacamphene, dl--sativenediol and dl-helminthosporal

Tetrahedron Letters, 1979
Abstract Photocycloadducts from dl-piperitone and 1,1-dimethoxyethylene afforded bicyclo[3.2.1]oct-6-en-8-one derivatives under glc conditions in excellent yields. The synthesis of the title sesquiterpenes was accomplished using the bridged bicyclic compounds as intermediates.
Mitsutoshi Yanagiya, Kimiyoshi Kaneko, Takashi Kaji, Takeshi Matsumoto   +3 more
openaire   +2 more sources

Vibrational spectral analysis of dl-valine dl-valinium and dl-methionine dl-methioninium picrates

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2006
A comparative study of infrared and Raman spectra of DL-valine DL-valinium picrate (DL-VVP) and DL-methionine DL-methioninium picrate (DL-MMP) at the room temperature in 4000-50 cm(-1) range helps to determine the effect of hydrogen bonds in these crystals.
M Briget, Mary, V, Sasirekha, V, Ramakrishnan   +2 more
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Stereospecific synthesis of dl-cyclopenin and dl-cyclopenol

Tetrahedron, 1970
Abstract A stereospecific synthesis of dl -cyclopenin ( 1 ) is described corroborating previous structural and stereochemical assignments. The hippuric acid 10 was converted to cis ester 11 which was reduced and cyclized separately to cis and trans 3-benzylidene-4-methyl-1- H -1,4-benzodiazepin-2,5-diones 12 and 14 .
J D, White, W E, Haefliger, M J, Dimsdale   +2 more
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DL Visualize

Computer Physics Communications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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dl‐Seryl‐dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Alanyl‐Glycin und dl‐Alanyl‐Glycyl‐Glycyl‐dl‐Seryl‐dl‐Alanyl‐Glycin

Justus Liebigs Annalen der Chemie, 1958
Abstract1) Aus Carbobenzoxy‐Dl‐seryl‐Dl‐alanyl‐glycin‐azid und Glycyl‐Dl‐alanyl‐glycin‐benzylester wurden die Carbobenzoxy‐hexapeptid‐benzylester synthetisiert und durch fraktionierte Kristallisation nach katalytischer Hydrierung die vier Racemate A, B, C und D von Dl‐alanyl‐glycyl‐glycyl‐Dl‐alanyl‐glycin erhalten.—2) Zwei Racemate A und B des ...
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Total Synthesis of Indole and Dihydroindole Alkaloids. VI. The total synthesis of some monomeric vinca alkaloids: dl‐Vincadine, dl‐vincaminoreine, dl‐vincaminorine, dl‐vincadifformine, dl‐minovine and dl‐vincaminoridine

Helvetica Chimica Acta, 1975
AbstractA synthetic approach to a variety of monomeric Vinca alkaloids is described. The sequence involves, among its crucial phases, the generation of appropriate nine‐membered ring intermediates which are then elaborated via a transannular cyclization approach to the desired natural products.
J P, Kutney, K K, Chan, A, Failli, J M, Fromson, C, Gletsos, A, Leutwiler, V R, Nelson, J P, de Souza   +7 more
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