Experimental observation of quantum entanglement in low dimensional spin systems (2006)
Rappoport, T. G., Ghivelder, L., Fernandes, J. C., Guimaraes, R. B., Continentino, M. A.
We report macroscopic magnetic measurements carried out in order to detect and characterize field-induced quantum entanglement in low dimensional spin systems. We analyze the pyroborate MgMnB_2O_5...
Heat transfer in theory of relativity (2006)
The traditional Fourier equation just allows us to study the evolution of temperature in an "undeformable" bar. The search for its relativistic variant is a task which is expected to fail because in...
Lymphadenopathy after BCG vaccination in a child with chronic granulomatous disease (2004)
Vieira, A.P., Vasconcelos, J., Fernandes, J.C., Antunes, H., Basto, S., Macedo, C., ...
Heat transmission in Relativity (2003)
The simultaneous study of deformation and heat transmission in a bar was ignored for about 150 years. The traditional Fourier equation just allows to study the evolution of temperature in a...
The Relativistic Elasticity of Rigid Bodies (2003)
In 1909 Born studied the "relativistic undeformable body" but made the mistake of calling it "rigid". The "rigid body" as one can find in Relativity books is, in fact, this Born "undeformable body"....
Structural Transition and Pair Formation in Fe3O2BO3 (2001)
Continentino, M. A., Doriguetto, A. C., Fernandes, J. C., Guimarães, R. B., Mir, M.
How unique is the Asymptotic Normalisation Coefficient (ANC) method? (2000)
Fernandes, J. C., Crespo, R., Nunes, F. M.
The asymptotic normalisation coefficients (ANC) for the vertex $^{10}$B $\to$ $^9$Be + p is deduced from a set of different proton transfer reactions at different energies. This set should ensure the...
Uncertainties in extracting $S_{17}$ from transfers (1999)
Fernandes, J. C., Crespo, R., Nunes, F. M., Thompson, I. J.
The transfer reaction $^7{\rm Be(d,n)}^8{\rm B}$ is modelled for the recent low experimental energies using the DWBA. Tests of the validity of the ANC method for the extraction of the $S_{17}$...
Relationship of Estuarine Plant Contaminants to Existing Data Bases. (1998)
Henriques, Fernando S., Fernandes, J. C.
A field survey was conducted to assess the pollution levels in plants, sediments and waters of the Sado river basin (in the south of Portugal), an area thought to be contaminated with mine effluents...
Existence and properties of the Green function for a class of degenerate parabolic equations (1996)
It is known that degenerate parabolic equations exhibit somehow different phenomena when we compare them with their elliptic counterparts. Thus, the problem of existence and properties of the Green...
Mean value and Harnack inequalities for a certain class of degenerate parabolic equations. (1991)
In this paper we study the behavior of degenerate parabolic equations of the form v(x) ut(x,t) = Sni,j=1 Dxi (aij(x,t) Dxi u(x,t)), where the coefficients are measurable functions