nuclear magnetic resonance
Dipole-dipole operator in angular momentum basis: a complementary study in nuclear magnetic resonance.
... DIPOLE-DIPOLE OPERATOR IN ANGULAR MOMENTUM BASIS: A COMPLEMENTARY STUDY IN NUCLEAR MAGNETIC RESONANCE. The relationship between the magnetic dipole-dipole potential energy function and its ...
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Pattern recognition analysis of proton nuclear magnetic resonance spectra of brain tissue extracts from rats anesthetized with propofol or isoflurane.
... Methodology/Principal Findings: Rats were randomized into five groups (n = 7 each group). Propofol and isoflurane were administered to two groups each, for 2 or 6 h. The control group received no anesthesia. Brains were ...
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Local anesthetics: interaction with human erythrocyte membranes as studied by 1H and 31P nuclear magnetic resonance.
... NUCLEAR MAGNETIC RESONANCE. The literature carries many theories about the mechanism of action of local anesthetics (LA). We can highlight those focusing the direct effect of LA on the sodium channel ...
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Surfactant/hydrotrope interaction in aqueous systems by nuclear magnetic resonance oxide), hydrotropy, nuclear magnetic resonance.
... Estes deslocamentos são bastante superiores aos observados para o copolímero no processo de formação de micelas (Figura 6a) e parecem in- dicar uma interação mais efetiva entre as molécu[r] ...
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13C Nuclear Magnetic Resonance spectroscopy in the studies of biosythetic routes of natural products.
... mais aumentadas devido ao efeito NOE (“Nuclear Overhauser Enhancement”). Como este aumento é proporcional ao número de hidrogênios ligados diretamente, os diferentes carbonos da molé- cula sofrerão diferentes ...
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Platinum-195 nuclear magnetic resonance of organometallic compounds.
... spin nuclear se comporta como um dipolo magnético, que tende a se alinhar ao campo magné- tico ...magnético nuclear µ e o momento an- gular de spin nuclear I 2 ...
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Nuclear magnetic resonance characterization of apple juice containing enzyme preparations.
... da β -glucose apresentou uma tendência a aumento, à medida que a concentração enzimática variou para as temperaturas de 20 e 35 ºC e diminuição para a temperatura de 50 ºC, enquanto n[r] ...
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J. Braz. Chem. Soc. vol.18 número2
... Carbonaceous pitches are used as raw materials in advanced carbon products. This work aims at combining solvent extraction methodology with low field nuclear magnetic resonance relaxometry technique ...
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Sphingolipids of the mycopathogen Sporothrix schenckii: identification of a glycosylinositol phosphorylceramide with novel core GlcNH(2)alpha 1 -> 2Ins motif
... NMR, nuclear magnetic resonance; COSY, correla- tion spectroscopy ; TOCSY, total correlation spectroscopy; NOESY, nuclear Overhauser e¡ect spectroscopy; HPLC, high performance liq- uid ...
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Isolation and Structural Determination of an Anti Bacterial Constituent from the Leaves of Cassia alata Linn.
... By different solvent extractions and chromatographic techniques an antibacterial constituent was isolated from leaves of Cassia alata Linn. Infra red spectroscopy, mass spectroscopy and nuclear magnetic ...
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Preparing the biodieselLCO blends
... The goal of the present study was to determine the potential use of thermal analysis for the measurement of the light crude oil (LCO) content of standard biodiesel mixtures. Standard samples of biodiesel/LCO blends were ...
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Rev. Assoc. Med. Bras. vol.63 número1
... The nuclear magnetic resonance imaging (NMR) showed signs suggestive of spondylodiscitis in C2-C3 associated with the presence of a massive epidural abscess compressing the ventral surface of the ...
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J. Braz. Chem. Soc. vol.24 número4
... state nuclear magnetic resonance (ssNMR) and a special technique of thermal analysis called thermo-optical analysis ...state nuclear magnetic resonance, Fourier- transformed ...
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Mycoleptones A−C and polyketides from the endophytem indicus
... by nuclear magnetic resonance (NMR) spectroscopy, high- resolution mass spectrometry (HRMS), electronic circular dichroism (ECD) spectroscopy, time-dependent density func- tional theory (TD-DFT) ...
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J. Braz. Chem. Soc. vol.23 número11
... A phytochemical investigation of the roots of Krameria tomentosa A. St.-Hil. led to the isolation of five neolignans, two of them with novel structures [1,1’-(E)-propenyl-4-methoxy- 3,4’-oxyneolignan (ottomentosa) and ...
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Computational speed-up with a single qudit
... parity (oddness or evenness) of a given cyclic permutation. A classical algorithm requires two que- ries to the black-box. We show that a quantum algorithm can solve the problem with a single query. Even though the ...
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MICROCALORIMETRIC STUDY OF FUNCTIONALIZED MESOPOROUS SILICAS FOR CO2 CAPTURE UNDER DRY CONDITIONS
... These studies have been complemented with Si 29 NMR (Nuclear Magnetic Resonance), which allows us to determine the distribution of Si-OH groups on the solid surfa[r] ...
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About the possibility of identification of hydrocarbon deposits with the help of NMR
... of nuclear magnetic resonance (NMR) application in tasks of search and exploration of hy- drocarbon ...weak magnetic field of the Earth were ...
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J. Braz. Chem. Soc. vol.28 número10
... 2D nuclear magnetic resonance (NMR) experiments and electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry ...
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