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Rafael García Mahíques (dir.),Los tipos iconográficos de la tradición cristiana: 7. Antigua Alianza: I. Los Patriarcas, Encuentro, Madrid 2022, 884 pp. [RESEÑA]
Get PDFSuperficial endometriosis at ultrasound examination - a diagnostic criteria proposal
No full textThe actual prevalence of superficial endometriosis is not known. However, it is considered the most common subtype of endometriosis. The diagnosis of superficial endometriosis remains difficult. In fact, little is known about the ultrasound features of superficial endometriotic lesions. In this study, we aimed to describe the appearance of superficial endometriosis lesions at ultrasound examination, with laparoscopic and/or histologic correlation. This is a prospective study on a series of 52 women with clinical suspicion of pelvic endometriosis who underwent preoperative transvaginal ultrasound and received a confirmed diagnosis of superficial endometriosis via laparoscopy. Women with ultrasound or laparoscopic findings of deep endometriosis were not included. We observed that superficial endometriotic lesions may appear as a solitary lesions, multiple separate lesions, and cluster lesions. The lesions may exhibit the presence of hypoechogenic associated tissue, hyperechoic foci, and/or velamentous (filmy) adhesions. The lesion may be convex, protruding from the peritoneal surface, or it may appear as a concave defect in the peritoneum. Most lesions exhibited several features. We conclude that transvaginal ultrasound may be useful for diagnosing superficial endometriosis, as these lesions may exhibit different ultrasound features
Pere Fullana, Història de la província espanyola del Tercer Orde Regular de Sant Francesc, Volumen III (1938-1960), Franciscanos TOR, Palma 2022, 349 pp. [RESEÑA]
Get PDFALVIRA, Rafael; HURTADO, Rafael (2023). Oikia y polis: La familia, raíz y alma de toda sociedad, Pamplona: EUNSA [RECENSIÓN]
Get PDFDigital image correlation after focused ion beam micro-slit drilling: A new technique for measuring residual stresses in hardmetal components at local scale
Get PDFA new method has been developed for measuring residual stresses at the surface of hardmetal components with higher spatial resolution than standard X-ray diffraction methods. It is based on measuring the surface dis-placements produced when stresses are partially released by machining a thin slit perpendicularly to the tested surface. Slit machining is carried out by focused ion beam (FIB). Measurement of the displacement fields around the FIB slit are performed by applying an advanced digital image correlation algorithm based on Fourier analysis with sub-pixel resolution. This method compares SEM images of the same area of the hardmetal surface before and after slitting. The method has been successfully applied to as-ground and femto-laser textured surfaces showing good correlation with the standard sin2 psi XRD technique. It is concluded that texturing induced by laser pulses in the femtoseconds regime is not perfectly adiabatic, since residual stresses are reduced by 15%
Co-crear futuro. El eslabón ausente en los Consejos de Administración
Get PDFAdemás de las responsabilidades orientadas al cumplimiento y al desarrollo, un Consejo de Administración debe prever y asegurar que la empresa sea competitiva en el futuro
Economía o política: la quiebra de la acción
Get PDFA partir de un cierto nivel de desarrollo humano no interesa tanto satisfacer una necesidad primaria, ni construir artefactos. Se descubre que el hombre está hecho para crecer como persona
Three essays on bank risk-taking from a portfolio perspective
Get PDFThis dissertation studies three distinct aspects of bank risk-taking from a novel portfolio perspective. First, I provide compelling evidence demonstrating that banks with high industry exposure adeptly adapt loan contract design to prevent potential adverse effects on loan portfolio value arising from the interaction between rival borrowers. Second, I stress the importance of banks’ pre-existing exposure and asset concentration in characterizing the risk-shifting incentives of banks enjoying government guarantees coverage. Last, I show that government guarantees coverage prompts bank risk-shifting at the intensive margin, and induces borrowers to leverage excessively, overinvest, and engage in low-quality projects. Altogether, I highlight the importance of pre-existing exposure in shaping banks’ risk management incentives and its connection to two key issues: the rise in bank concentration and the extent of government guarantees coverage. These findings carry noteworthy implications for bank lending behavior and loan contract design, ultimately impacting borrowers’ corporate policy and potentially giving rise to unintended policy consequences
¿Sirven para algo las disputas sobre valores y estilos de vida?
Get PDF¿Podemos hablar sobre temas sociales y éticos controvertidos sin pelearnos? ¿Bajo qué condiciones? La experiencia del momento actual nos dice que entender el debate cultural como una lucha por la hegemonía del espacio público, nos está llevando a discusiones tan enconadas como improductivas. Si solo una de las partes implicadas en ese debate puede salir ganando, ¿qué incentivos hay para que el resto escuche? Frente a la dinámica “yo gano, tú pierdes”, cabe ver la batalla de las ideas como una gran confrontación intelectual de la que podemos beneficiarnos todos. No porque vayamos a llegar a un terreno común libre de desencuentros, sino porque estaremos creando las condiciones para hablar y dejar hablar; para escuchar y que me escuchen; para liberar la razón y que se ponga a discernir cuáles son las ideas, los valores y los estilos de vida más respetuosos con la dignidad humana o más capaces de realizar el bien común
Analysis of self-tapping screw joints in fibre glass reinforced PEI polymer used in the automotive industry
Get PDFThis article presents a study of the joining of polyetherimide (PEI) polymer parts reinforced with fibre glass which has great application in the automotive sector. A simulation model based on the finite element method is proposed. For the modelling of the polymeric material, the three-network viscoplastic (TNV) rheological model was used, with very adequate results and producing a good fit with the experimental data. In addition, a methodology is proposed that allows simplifying a three-dimensional to an axisymmetric model, which implies a notable reduction in computational cost. In addition, the work includes an experimental analysis that evaluates the tightening torque under conditions of assembly repetitiveness, relaxation over time and influence of thermal cycles. These scenarios have a different influence depending on the geometry of the self-tapping screw used. Regarding repetitiveness, it has been verified that PF-30 (CELOspArk (R)) loses 17.16% while in Delta-PT (DELTA PT (R)) it loses up to 41.93% in the tenth repetition. In contrast, in the relaxation over time scenario, the PF-30 loses 13.38% and the Delta-PT loses 17.82%. Finally, regarding the thermal cycles, cooling allows to slightly delay the loss of tightening torque in both screws in a similar way; however, in the heating stage, 36.89% is lost with PF-30 and only 14.66% with Delta-PT. This study represents an improvement in the knowledge of the joining processes of self-tapping screws with polymeric materials of an engineering nature. The simulation model can be easily adapted to other materials and other geometries, and the experimental study offers a vision of the evolution of tightening conditions in realistic operating scenarios