Search results for "ratio [channel cross section]"
showing 5 items of 85 documents
Valoración de los parámetros inflamatorios como factores de riesgo independiente para supervivencia en los pacientes con cáncer de pulmón no microcít…
2021
Antecedentes: El cáncer de pulmón sigue siendo la causa principal de muerte por cáncer en nuestro medio. En concreto, el cáncer de pulmón no microcítico (CPNM) supone un 80% de los casos y el pronóstico, incluso en enfermedad localmente avanzada sigue siendo pobre, con una supervivencia en torno al 20% en estadio III. Además, la enfermedad localmente avanzada supone un subgrupo heterogéneo, en el que las opciones terapéuticas y la evolución pueden ser muy dispares, y puede incluir tanto la cirugía, como el tratamiento con quimiorradioterapia (QRT), con o sin tratamiento de mantenimiento con inmunoterapia, y el tratamiento paliativo. En este escenario cobra especial importancia la búsqueda d…
Data from: Daphnia females adjust sex allocation in response to current sex ratio and density
2019
Cyclical parthenogenesis presents an interesting challenge for the study of sex allocation, as individuals’ allocation decisions involve both the choice between sexual and asexual reproduction, and the choice between sons and daughters. Male production is therefore expected to depend on ecological and evolutionary drivers of overall investment in sex, and those influencing male reproductive value during sexual periods. We manipulated experimental populations, and made repeated observations of natural populations over their growing season, to disentangle effects of population density and the timing of sex from effects of adult sex ratio on sex allocation in cyclically parthenogenetic Daphnia…
An IPMSM torque/weight and torque/moment of inertia ratio optimization
2014
In this paper, a torque/weight and torque/moment of inertia ratio optimization procedure for interior permanent magnet syncronous motors (IPMSMs) is presented. More in detail, a performance comparison between several IPMSM rotor structures has been carried out in order to determine the optimum geometry that can maximize the torque/weight and torque/moment of inertia ratios. A commercial motor, with known electrical and mechanical characteristics, has been taken as reference. Its rotor structure has been modified several times, obtaining different rotor geometries and, therefore, many IPMSM models with different electrical and mechanical characteristics. The finite element method (FEM) analy…
Measuring Performance in the Luxury Industry: Is there a Difference in Performance Between the top and Bottom Players in the Industry?
2021
Abstract This paper presents a methodology that consists of a Z-score function applied on a set of indicators for the luxury industry and then standardized to obtain a ranking of the companies on a scale between 10 and 100. To measure the performance for the top 5 LVMH, Estee Lauder, Richemont, Kering, Essilor Luxottica, and bottom 5 Aeffe, Tribhovandas, Van de Velde, Mulberry, Trinity companies (based on Deloitte global ranking in 2019) in the luxury industry and to unveil which are the performance drivers. By applying this methodology it can be made a comparison in performance between the top and the bottom companies in the luxury industry. The performance score is calculated for ten year…
Stable carbon and oxygen isotope fractionation in bivalve (Placopecten magellanicus) larval aragonite
2008
Abstract The relationship between stable isotope composition (δ13C and δ18O) in seawater and in larval shell aragonite of the sea scallop, Placopecten magellanicus, was investigated in a controlled experiment to determine whether isotopes in larval shell aragonite can be used as a reliable proxy for environmental conditions. The linear relationship between δ13CDIC and δ13Caragonite (r2 = 0.97, p δ 13 C DIC = 1.15 ( ± 0.05 ) ∗ δ 13 C aragonite - 0.85 ( ± 0.04 ) The relationship between δ13CDIC and δ13Caragonite described for P. magellanicus resulted in larval shell aragonite that was depleted on average by 1.82‰ (SD = 0.22‰, range = 1.1–2.1‰) from predicted equilibrium values based on the r…