[PDF] Top 20 Guía metodológica para el diseño de proyectos en el enfoque de marco lógico

... SSNMR spectroscopy is very sensitive to the short-range structural ...SSNMR spectroscopy has been considered to be one of the most convenient ways to confirm the presence of weak hydrogen ... See full document

... Abstract Multi-nuclear solid state nuclear magnetic resonance has been used to investigate the local atomic structure of the relaxor ferroelectric materials, lead magnesium niobate titan[r] ... See full document

... the materials. Thus, utilising solid state NMR a study of several support materials has been ...platinum materials due to technical difficulties. The use of 195 Pt solid ... See full document

... Modern MAS NMR probes use high pressure gas to spin cylindrical sample containers with fluted caps, called rotors. Smaller rotors can be spun very fast (up to 111 KHz), 22 and can therefore achieve great resolution. ... See full document

... In his famous speech “There’s plenty of room at the bottom”, given on December 29 th 1959 at the annual meetings of the American Physical Society at Caltech, the quantum physicist, Richard Feynman raised the problem of ... See full document

... Protein gel analysis identified catalase B and Asp f2 as the major proteins in the ECM. Asp f2 has been associated with damage to the host epithelium and host inflammatory reactions during fun- gal colonization (26). ... See full document

... Computing the exponential of a matrix is an important task in quantum mechanics and in solid-state nuclear magnetic resonance in particular where all theories used rely on exponential ... See full document

... It is not clear whether this type of symmetry has any immediate applications outside NMR. As mentioned above, NMR is unique in that the interactions of the quantum- mechanical system with the experimental apparatus are ... See full document

... 31P nuclear magnetic resonance (NMR) to determine the different states of phosphates in cheeses was ...that solid-state NMR is an appropriate method to observe the distribution of ... See full document

... describing solid-state NMR expe- riments, where the Hamiltonian becomes time dependent due to external mani- pulations such as MAS and/or periodic RF pulse ...molecular spectroscopy methods ... See full document

... biological solid-state NMR has solved the 3D structure of several pro- teins in the 10s of kDa region with the largest currently being the Type-III secretion system needle, weighing in at 257 kDa, solved by ... See full document

... low-energy spectroscopy, which can lead to weak signals compared to those obtained from other forms of spectroscopy ...paramagnetic resonance, and IR ... See full document

... static magnetic field and the application of RF pulses, are controlled by the user and, as such, are called ex- ternal ...the solid state rather than in solution or the liquid ...physical state ... See full document

... In cases where structures cannot be determined from experiment, it is possible to generate candidate crystal structures using computational methods and compute the associated NMR parameters for structural verification. ... See full document

... Zn solid-state NMR (SSNMR) should be an ideal tool for directly probing the Zn environment in ...large nuclear quadrupole moment, resulting in very low-sensitivity and broad ... See full document

... the magnetic shieldings was subsequently performed using the CSGT method and the same hybrid functional at variable basis set size to check for the convergence of the ... See full document

... decades, nuclear magnetic resonance (NMR) spectroscopy has become a method of choice for the study of the structure and dynamics of natural and synthetic ...the solid-state NMR ... See full document

... of nuclear magnetic re- sonance in condensed matter in 1946 [56] [57], the field of solid-state NMR has adopted only two milestones theoretical approaches in its history, theories which ... See full document

... Venâncio, Tiago, Oliveira, Lyege Magalhaes, Ellena, Javier, Boechat, Nubia and Brown, Steven P. (2017) Probing intermolecular interactions in a diethylcarbamazine citrate salt by fast MAS 1 H solid-state ... See full document

... In this study, a compost-derived microbial community was grown in minimal medium supplemented with sug- arcane bagasse as a sole carbon source aiming to enrich lignocellulose-degrading microorganisms. We monitored ... See full document