On the distribution of high-frequency stock market traded volume: a dynamical scenario

This manuscript reports a stochastic dynamical scenario whose associated stationary probability density function is exactly a previously proposed one to adjust high-frequency traded volume distributions. This dynamical conjecture, physically connected to superstatiscs, which is intimately related with the current nonextensive statistical mechanics framework, is based on the idea of local fluctuations in the mean traded volume associated to financial markets agents herding behaviour. The corroboration of this mesoscopic model is done by modelising NASDAQ 1 and 2 minute stock market traded volume

A unification in the theory of linearization of second order nonlinear ordinary differential equations

In this letter, we introduce a new generalized linearizing transformation (GLT) for second order nonlinear ordinary differential equations (SNODEs). The well known invertible point (IPT) and non-point transformations (NPT) can be derived as sub-cases of the GLT. A wider class of nonlinear ODEs that cannot be linearized through NPT and IPT can be linearized by this GLT. We also illustrate how to construct GLTs and to identify the form of the linearizable equations and propose a procedure to derive the general solution from this GLT for the SNODEs. We demonstrate the theory with two examples which are of contemporary interest.Comment: 8 page

Processamento de lingüiça frescal e defumada de caprinos e ovinos.

Derivados cárneos; Lingüiças frescal e defumada: fluxograma do processamento de lingüiças; Passo a passo para a elaboração industrial da lingüiça; Formulação para elaboração de lingüiças de carne caprina e ovina sem adição de gordura suína.bitstream/CNPC/20710/1/cot78.pd

A new proof of the Herman-Avila-Bochi formula for Lyapunov exponents of SL(2,R)-cocycles

We study the geometry of the action of SL(2,R) on the projective line in order to present a new and simpler proof of the Herman-Avila-Bochi formula. This formula gives the average Lyapunov exponent of a class of 1-families of SL(2,R)-cocycles.Comment: 13 pages, 2 figure

A Method to Tackle First Order Differential Equations with Liouvillian Functions in the Solution - II

We present a semi-decision procedure to tackle first order differential equations, with Liouvillian functions in the solution (LFOODEs). As in the case of the Prelle-Singer procedure, this method is based on the knowledge of the integrating factor structure.Comment: 11 pages, late

Subjective well-being in organizations: Effects of internal ethical context and ethical leadership

The literature rarely addresses the possible effects of organizations’ internal ethical context on their employees’ subjective well-being, that is, people’s evaluation of their lives based on positive and negative emotional experiences and perceived life satisfaction. This study explored how internal ethical context’s components—specifically ethics codes, ethics programs’ scope and perceived relevance, and perceived corporate social responsibility practices—are related to workers’ subjective well-being. Ethical leadership’s possible leveraging of ethical context variables’ effect on subjective well-being was also examined. The data were collected from 222 employees from various organizations in Portugal using an electronic survey. The results from multiple regression analyses indicate that organizations’ internal ethical context positively affects employees’ subjective well-being. This impact is mediated by ethical leadership, suggesting that leaders play a crucial role in highlighting and embodying their organization’s ethical norms and orientation, thereby directly influencing their staff members’ subjective well-being.info:eu-repo/semantics/publishedVersio

Neoplastic tissue transfiguration in vivo by recombinant human transforming growth factor-β3

Human oral squamous cell carcinomas (hSCCs) are the most common head and neck cancers now presenting with more aggressive biological and clinical features due to smoking and alcohol together with widespread viremia. Transforming growth factor-β (TGF-β) proteins are powerful morphogens that induce rapid and substantial induction of endochondral bone formation but in primates only

Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Seismic Hazard Purposes

The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown. Our goal is to shed some light into the seismogenic sources in the area using seismic reflection and geological data. In areas with no seismic coverage, potential-field data interpretation was carried out. Seismicity was overlaid to the potential seismogenic structures and high-resolution data was acquired in order to confirm which structures have been active into the Quaternary. Three major fault-zones affecting the Neogene were identified: V. F. Xira, Samora-Alcochete and Pinhal Novo. For the first fault, strong evidences suggest it is active. The other two fault-zones and other structures previously unknown can be correlated with several epicentres. Empirical relationships between maximum moment magnitude and fault area indicate that MW > 6.5 earthquakes can be expected for the larger structures