43 research outputs found
De nuevo, sobre la subrogación por pago del hipotecante por deuda ajena: comentario a la Sentencia del TS de 30 diciembre 2015
SENTENCIA: INCONGRUENCIA: inexistencia: cambio de punto de vista jurídico sin merma del derecho de defensa: Sentencia que estima a favor del hipotecante no deudor la acción subrogatoria tras la realización forzosa de la finca hipotecada cuando en la demanda se ejercita la acción subrogatoria ex art. 1838 CCiv.SENTENCE: INCONGRUITY: nonex-istence: changing legal point of view without compromising the right of defense: Judgment that estimates for the mortgagee no debtor subrogation action following the forced reali-zation of the mortgaged property when demand subrogation action is brought exart.1838 CCiv
Fe and N self-diffusion in amorphous FeN: A SIMS and neutron reflectivity study
Simultaneous measurement of self-diffusion of iron and nitrogen in amorphous
iron nitride (Fe86N14) using secondary ion mass spectroscopy (SIMS) technique
has been done. In addition neutron reflectivity (NR) technique was employed to
study the Fe diffusion in the same compound. The broadening of a tracer layer
of 57Fe8615N14 sandwiched between Fe86N14 layers was observed after isothermal
vacuum annealing of the films at different temperatures in SIMS measurements.
And a decay of the Bragg peak intensity after isothermal annealing was observed
in [Fe86N14/57Fe86N14]10 multilayers in NR. Strong structural relaxation of
diffusion coefficient was observed below the crystallization temperature of the
amorphous phase in both measurements. It was observed from the SIMS
measurements that Fe diffusion was about 2 orders of magnitude smaller compared
to nitrogen at a given temperature. The NR measurements reveal that the
mechanism of Fe self-diffusion is very similar to that in metal-metal type
metallic glasses. The structural relaxation time for Fe and N diffusion was
found comparable indicating that the obtained relaxation time essentially
pertain to the structural relaxation of the amorphous phase.Comment: 10 pages 12 figure
Soft matter interactions at the molecular scale: interaction forces and energies between single hydrophobic model peptides
In all realms of soft matter research a fundamental understanding of the structure/property relationships based on molecular interactions is crucial for developing a framework for the targeted design of soft materials. However, a molecular picture is often difficult to ascertain and yet essential for understanding the many different competing interactions at play, including entropies and cooperativities, hydration effects, and the enormous design space of soft matter. Here, we characterized for the first time the interaction between single hydrophobic molecules quantitatively using atomic force microscopy, and demonstrated that single molecular hydrophobic interaction free energies are dominated by the area of the smallest interacting hydrophobe. The interaction free energy amounts to 3-4 kT per hydrophobic unit. Also, we find that the transition state of the hydrophobic interactions is located at 3 A with respect to the ground state, based on Bell-Evans theory. Our results provide a new path for understanding the nature of hydrophobic interactions at the single molecular scale. Our approach enables us to systematically vary hydrophobic and any other interaction type by utilizing peptide chemistry providing a strategic advancement to unravel molecular surface and soft matter interactions at the single molecular scale