Results 11 to 20 of about 43,951 (232)

INTERVALOS DE INTEGRACIÓN UNIFICADOS PARA LA CARACTERIZACIÓN ESTRUCTURAL DE PETRÓLEOS, CARBONES O SUS FRACCIONES POR RMN 1H Y RMN 13C [PDF]

Revista Colombiana de Química, 2010
Con base en la revisión de publicaciones, hechas entre 1972 y 2006, se evidenció que hay imprecisiones en los límites de los intervalos de integración que los autores asignan a las señales en resonancia magnética nuclear (RMN) para hacer la ...
Avella Eliseo, Ricardo Fierro
doaj   +2 more sources

Estudio computacional de RMN del acetaminofén y sus precursores químicos

infoANALITÍCA, 2018
En este artículo, se presenta un estudio espectroscópico computacional de Resonancia Magnética Nuclear del acetaminofén y sus principales precursores químicos: el 4-nitrofenol y el 4-aminofenol.
Sebastian Cuesta, Shirley Morocho, Lorena Meneses   +2 more
doaj   +2 more sources

Estudo dos efeitos da COVID-19 sobre metabólitos séricos utilizando RMN

, 2020
Identificar metabólitos séricos que refletem o estado e a gravidade da doença pode ajudar no diagnóstico e prognóstico, definir as melhores intervenções a serem aplicadas e o momento correto, bem como compreender o impacto da doença em todo o corpo.
Tasić, Ljubica, Stanišić, Danijela, Jadranin, Milka   +2 more
core   +5 more sources

Serum bile acids as a prognostic biomarker in biliary atresia following Kasai portoenterostomy

Hepatology, EarlyView., 2022
Serum bile acid levels predict outcomes in patients with biliary atresia who achieve normalized bilirubin levels after Kasai portoenterostomy. Abstract Background and Aims In biliary atresia, serum bilirubin is commonly used to predict outcomes after Kasai portoenterostomy (KP).
Sanjiv Harpavat, Kieran Hawthorne, Kenneth D. R. Setchell, Monica Narvaez Rivas, Lisa Henn, Charlotte A. Beil, Saul J. Karpen, Vicky L. Ng, Estella M. Alonso, Jorge A. Bezerra, Stephen L. Guthery, Simon Horslen, Kathy M. Loomes, Patrick McKiernan, John C. Magee, Robert M. Merion, Jean P. Molleston, Philip Rosenthal, Richard J. Thompson, Kasper S. Wang, Ronald J. Sokol, Benjamin L. Shneider, for Childhood Liver Disease Research Network (ChiLDReN)   +22 more
wiley   +1 more source

Oxadiazolone-Triazole Derivatives as a New Scaffold for Modulation of Angiotensin II-Induced Vascular Contraction. [PDF]

ChemMedChem
A novel series of candidate AT1 receptor antagonists based on oxadiazolone‐triazole scaffolds was designed and synthesized. Most compounds reduced angiotensin II‐induced vascular contraction in an initial biological screening, with compound 7f emerging as the most active derivative.
Ferreira LFL, Vasconcelos DGA, Santos RCA, Ferreira JG, Araújo AV, Anjos JVD.   +5 more
europepmc   +2 more sources

Determinación de la calidad del aceite de té mediante 19F RMN y 1H RMN [PDF]

, 2021
The nuclear magnetic resonance (NMR) technique was applied to monitor the quality of tea oil herein. The adulteration of virgin tea oil was monitored by 19F NMR and 1H NMR.
T.M. Olajide, W. Wang, T. Liu, Weng, X.C., Cheng, Q., X.C. Weng, Wang, W., Cheng, Z., Q. Cheng, Liu, T., Z. Cheng, Olajide, T.M.   +11 more
core   +1 more source

Chemometric Analysis of Low-field ¹H NMR Spectra for Unveiling Adulteration of Slimming Dietary Supplements by Pharmaceutical Compounds

Molecules, 2020
The recent introduction of compact or low-field (LF) NMR spectrometers that use permanent magnets, giving rise to proton (1H) NMR frequencies between 40 and 80 MHz, have opened up new areas of application.
Nao Wu, Stéphane Balayssac, Saïda Danoun, Myriam Malet-Martino, Véronique Gilard   +4 more
doaj   +1 more source

The feasibility of using remote magnetic navigation system as the primary technological training tool for novice cardiac electrophysiology operators in the catheter ablation of left-sided accessory pathway

Cardiology Journal, 2023
BACKGROUND: For novice operators, mastering catheter ablation of left-sided accessory pathway (LSAP) in a short duration of time without compromising efficacy and safety remains a challenge. In this study an attempt to shorten the learning curve by using
Guanhua Wu, Qingzhi Luo, Yangyang Bao, Yue Wei, Changjian Lin, Ning Zhang, Tianyou Ling, Kang Chen, Wenqi Pan, Liqun Wu, Yun Xie, Qi Jin   +11 more
doaj   +1 more source

Remote magnetic navigation shows superior long-term outcomes in pediatric atrioventricular (nodal) tachycardia ablation compared to manual radiofrequency and cryoablation

International Journal of Cardiology: Heart & Vasculature, 2021
Background: Catheter ablation (CA) is the first-choice treatment for tachyarrhythmia in children. Currently available CA techniques differ in mechanism of catheter navigation and energy sources.
Anna M.E. Noten, Janneke A.E. Kammeraad, Nawin L. Ramdat Misier, Sip Wijchers, Ingrid M. van Beynum, Michiel Dalinghaus, Thomas B. Krasemann, Sing-Chien Yap, Natasja M.S. de Groot, Tamas Szili-Torok   +9 more
doaj   +1 more source

IDENTIFICATION OF SEX FROM PALATAL BONES USING MULTI-SLICE COMPUTED TOMOGRAPHY SCAN IN A SAMPLE OF ADULT EGYPTIAN POPULATION [PDF]

The Egyptian Journal of Forensic Sciences and Applied Toxicology, 2023
Background: Identification is the cornerstone in forensic medicine. Accurate sex identification from fragmented bones is a challenging medicolegal task.
Hanan Khattab, Rasha Khedr
doaj   +1 more source