F-algebra–Rinehart pairs and super F-algebroids

We define F-algebra--Rinehart pairs and super F-algebroids and study theconnection between them.<br

Specific Merluccius otolith growth patterns related to phylogenetics and environmental factors

5 pages, 2 figures, 2tablesA comparative morphological study was performed on the otolith growth patterns of 11 species of the genus Merluccius. The otolith growth pattern, based on the radius of the first eight growth increments (GI) from the otolith core, was determined from transverse sections of sagitta otoliths. The structure and periodicity of the GI were identified based on previous knowledge. Two cluster analyses were performed using GI width as a proxy for otolith growth. The first cluster analysis corresponded to the juvenile (immature) period of the ¢sh including the mean width of the first four GI. The second analysis compared the mean width of the next four GI, i.e. those corresponding to mature fish. The results showed an important environmental influence in immature fish; while after maturation, the GI pattern was also related to an endogenous influence depending on the phylogenetic line.This work was supported by the EU FAIR project CT 95-0655. Gabriel Torres’s contribution was funded under the doctoral fellowship grant provided by the Spanish International Co-operation Agency (AECI) and the Latin-American-Catalonian Co-operation Institute (ICCI).Peer reviewe

Classical-Quantum Correspondence by Means of Probability Densities

Within the frame of the recently introduced phase space representation of non relativistic quantum mechanics, we propose a Lagrangian from which the phase space Schrodinger equation can be derived. From that Lagrangian, the associated conservation equations, according to Noether's theorem, are obtained. This shows that one can analyze quantum systems completely in phase space as it is done in coordinate space, without additional complications

THE ROLE OF QMS IN THE RELATIONSHIP BETWEEN INNOVATION CLIMATE AND PERFORMANCE

The emergence of new global competitors, the convergence of high-technology industries and the increasing speed and cost of technological development promise an increasingly uncertain environment for organizations, making adaptation to changes in the environment a central theme in the study of the organization for both organization theory and strategic management. This paper is thus seeks principally to verify that, while innovation and QM alone do not possess the qualities required to provide organizations with sustainable competitive advantages, the bundle of innovation and QM together with other resources and competencies will allow organizations to obtain a competitive advantage and adapt to their environment. The results show that the factors determining innovation—such as resistance to change, cohesion, and workload pressures—have repercussions for the firms’ capacity to adapt to their environment, and that a QM context facilitates this adaptation. Finally, we can conclude that a climate of support for innovation is positively related to the organization’s performance

Un estudio empírico del impacto de las iniciativas actuales de gestión de la calidad sobre la innovación y flexibilidad organizativa

In recent years, managers have opted for implementing Quality Management in their firms. The market offers different alternatives for QM implementation (EFQM, ISO, Six Sigma, etc.). Benefits of each initiative, varies from case to case. This article designs a criterion for choosing among four alternatives (Quality Control, EFQM, Six Sigma and ISO 9000), according to the different effects that QM elements included in each initiative, have on innovation and flexibility capabilities. To do so, using a stepwise regression with dummy variables, it analyses 234 European organizations. The research concludes that QM elements included on Quality Control and ISO standards have the same effect on administrative and technical innovation, and operational and strategic flexibility. QM elements included in EFQM model have a deeper impact on administrative and technical innovation, and strategic flexibility. And finally, QM elements included in Six Sigma methodology have a deeper impact on operational flexibility

Magneto-Convection and Lithium Age Estimates of the \beta Pictoris Moving Group

Although the means of the ages of stars in young groups determined from Li depletion often agree with mean ages determined from Hertzsprung - Russell diagram isochrones, there are often statistically significant differences in the ages of individual stars determined by the two methods. We find that inclusion of the effects of inhibition of convection due to the presence of magnetic fields leads to consistent ages for the individual stars. We illustrate how age consistency arises by applying our results to the \beta Pictoris moving group. We find that, although magnetic inhibition of convection leads to increased ages from the Hertzsprung - Russell diagram isochrones for all stars, Li ages are decreased for fully convective M stars and increased for stars with radiative cores. Our consistent age determination for the \beta Pictoris moving group of 40 Myr is larger than previous determinations by a factor of about two.Comment: Submitted to the Astrophysical Journal; 16 pages including 8 figure

Green chemistry and environmental processes

Funding Information: Acknowledgments: Portuguese FCT—Fundação para a Ciência e a Tecnologia, I.P., under the Scientific Employment Stimulus—Institutional Call (CEECINST/00102/2018) and Associate Laboratory for Green Chemistry—LAQV, financed by national funds from FCT/MCTES (UIDB/50006/2020 and UIDP/50006/2020) and the Spanish Project ref. RTI 2018-099224-B100 funded by ERDF/Ministry of Science, Innovation and Universities. S.M.-T. also acknowledges the Ramón y Cajal contract (RYC-2019-026634-I/AEI/10.13039/501100011033) from MINECO.publishersversionpublishe

Twenty-One New Light Curves of OGLE-TR-56b: New System Parameters and Limits on Timing Variations

Although OGLE-TR-56b was the second transiting exoplanet discovered, only one light curve, observed in 2006, has been published besides the discovery data. We present twenty-one light curves of nineteen different transits observed between July 2003 and July 2009 with the Magellan Telescopes and Gemini South. The combined analysis of the new light curves confirms a slightly inflated planetary radius relative to model predictions, with R_p = 1.378 +/- 0.090 R_J. However, the values found for the transit duration, semimajor axis, and inclination values differ significantly from the previous result, likely due to systematic errors. The new semimajor axis and inclination, a = 0.01942 +/- 0.00015 AU and i = 73.72 +/- 0.18 degrees, are smaller than previously reported, while the total duration, T_14 = 7931 +/- 38 s, is 18 minutes longer. The transit midtimes have errors from 23 s to several minutes, and no evidence is seen for transit midtime or duration variations. Similarly, no change is seen in the orbital period, implying a nominal stellar tidal decay factor of Q_* = 10^7, with a three-sigma lower limit of 10^5.7.Comment: 14 pages, 5 figures, accepted to Ap