Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha (2009)
Hussain, G. A. J., Cameron, A. Collier, Jardine, M. M., Dunstone, N., Velez, J. Ramirez, Stempels, H. C., ...
We have produced brightness and magnetic field maps of the surfaces of CV Cha and CR Cha: two actively accreting G and K-type T Tauri stars in the Chamaeleon I star-forming cloud with ages of 3-5...
Evidence of inward toroidal momentum convection in the JET tokamak (2009)
Tala, Tuomas, Ferreira, J., Mantica, P., Naulin, V., Peeters, A. G., ...
Physical Review Letters Vol.102 Nr.7, 075001
Evidence of Inward Toroidal Momentum Convection in the JET Tokamak (2009)
Tala, T., Ferreira, J., Mantica, P., Naulin, V., Peeters, A. G., ...
Integrated modelling of ITER reference scenarios (2009)
Parail, V., Belo, P., Boerner, P., Bonnin, X., Corrigan, G., Coster, D., ...
Angular momentum studies with NBI modulation in JET (2009)
Tardini, G., Ferreira, J., Mantica, P., Peeters, A. G., Tala, T., Zastrow, K. D., ...
Angular Momentum Studies with NBI Modulation in JET (2009)
Tardini, G., Ferreira, J., Mantica, P., Peeters, A.G., Tala, Tuomas, Zastrow, K.D., ...
Nuclear Fusion Nr.49, 085010
A MODULAR PLATFORM APPLICABLE TO ALL STATISTICAL RETRIEVAL MODELS (2008)
J. Ferreira, A. Silva, J. Delgado
This paper proposes a standard testing platform for Information Retrieval (IR) that can be used for testing different IR statistical models in a controlled environment or in the Web. The development...
A Global Energetic Model for Microquasars (GEMM): A rich and consistent disk+jet solution (2008)
Foellmi, C., Ferreira, J., Henri, G.
Based on a dynamical model describing how stationary, powerful and self-collimated jets are being launched from a magnetized disk, we build a consistent disk+jet microquasar picture. Our disk is a...
Foellmi, C., Ferreira, J., Henri, G., Boutelier, T.
We present preliminary results and observables from a model of microquasar based on a theoretical framework where stationary, powerful, compact jets are launched and then accelerated from an inner...
Effects of simple and angular chromones on tumor cell respiration (2008)
Araya Maturana, R., Heredia Moya, Jorge, Donoso Tauda, Oscar, Vera Castillo, Mario Francisco, Toledo Hernández, Jorge, Pavani, M., ...
A set of structurally related compounds incorporating a chromone moiety as an essential component of their structures were tested against the TA3 mouse carcinoma cell line and its multidrug-resistant...
22nd IAEA Fusion Energy Conference, Geneva, Switzerland, October 13-18, 2008
Accretion funnels onto weakly magnetized young stars (2008)
Bessolaz, N., Zanni, C., Ferreira, J., Keppens, R., Bouvier, J.
Aims. We re-examine the conditions required to steadily deviate an accretion flow from a circumstellar disc into a magnetospheric funnel flow onto a slow rotating young forming star. Methods. New...
The role of the disk magnetization on the hysteresis behavior of X-ray binaries (2007)
Petrucci, P. O., Ferreira, J., Henri, G., Pelletier, G.
We present a framework for understanding the dynamical and spectral properties of X-ray Binaries, where the presence of an organized large scale magnetic field plays a major role. Such a field is...
Accretion funnels onto weakly magnetized young stars (2007)
Bessolaz, N., Zanni, C., Ferreira, J., Keppens, R., Bouvier, J.
Aims : We re-examine the conditions required to steadily deviate an accretion flow from a circumstellar disc into a magnetospheric funnel flow onto a slow rotating young forming star. Methods : New...
The radial structure of protostellar accretion disks: influence of jets (2007)
The radial structure of accretion disks is a fundamental issue regarding star and planet formation. Many theoretical studies, focussing on different aspects such as e.g. disk emissivity or...
Kurachi,C., Ferreira,J., Zucoloto,S., Bagnato,V.S.
The biostimulating effect of laser radiation has been observed in many areas of Medicine. However, there are still several questions to be answered, among them the importance of light coherence in...
Costa, JLF, Ferreira, J, Teles, C, Gutierrez, F, Mesquita, A, Costa-Filho, RC
No abstract available.
Magnetic topologies of cool stars (2007)
Jardine, M. M., Petit, P., Morin, J., Bouvier, J., Cameron, A. C., ...
Stellar magnetic fields can be investigated using several, very complementary approaches. While conventional spectroscopy is capable of estimating the average magnetic strength of potentially complex...
Toroidal and poloidal momentum transport studies in tokamaks. Invited Paper (2007)
Tala, T., Crombe, K., De Vries, P. C., Ferreira, J., Mantica, P., Peeters, A. G., ...
Toroidal and poloidal momentum transport studies in tokamaks (2007)
Tala, Tuomas, Crombe, K., De Vries, P.C., Ferreira, J., Mantica, P., Peeters, A.G., ...
Plasma Physics and Controlled Fusion Vol.49 Nr.12, B291 - B302
Reorienting teacher education towards sustainability: Critical success factors (2007)
Ferreira, J, Ryan, L, Tilbury, D
No abstract available.
Planning for Success: Factors Influencing Change in Teacher Education (2007)
Ferreira, J, Ryan, L, Tilbury, D
No abstract available.
Ferreira, J, Ryan, L, Tilbury, D
Initial teacher education provides a strategic opportunity for ensuring that all teachers are ready and able to teach for sustainability when they begin their teaching careers. However, it is widely...
Toroidal and poloidal momentum transport studies in tokamaks (2007)
Tala, T., Crombé, Kristel, De Vries, P. C., Ferreira, J., Mantica, P., Peeters, A. G., ...
The present status of understanding of toroidal and poloidal momentum transport in tokamaks is presented in this paper. Similar energy confinement and momentum confinement times, i.e....
A unified paradigm for the spectral and temporal evolution of Black Hole X-ray Binaries (2006)
Petrucci, P. O., Ferreira, J., Cabanac, C., Henri, G., Pelletier, G.
We present a unified picture to explain the spectral states of BH binaries based on the two-flow model. In our view, the central regions have a multi-flow configuration consisting in (1) an outer...
Ferreira, J., Petrucci, P.O., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
A multi-flow model for microquasars (2006)
Petrucci, P. O., Ferreira, J., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
Lubbe, Berendien, Endres, B., Ferreira, J.
The travel industry has experienced major changes and continues to do so. The airline industry is no longer paying commission to travel agents, and agents are now charging fees to clients for various...
Lubbe, Berendien, Endres, B., Ferreira, J.
The travel industry has experienced major changes and continues to do so. The airline industry is no longer paying commission to travel agents, and agents are now charging fees to clients for various...
Surface density jumps as planet traps (2006)
Masset, F., Morbidelli, A., Crida, A., Ferreira, J.
[Abridged] The tidal torque exerted by a protoplanetary disk with power law surface density and temperature profiles onto an embedded protoplanetary embryo is generally a negative quantity that leads...
Peres,C. M., Bastos,M. F., Ferreira,J., Sartori,A.
In this study we optimized an enzyme-linked immunosorbent assay (ELISA) to evaluate bothropic venom levels in biological samples. These samples were obtained by two distinct protocols. In the first...
Ferreira, J., Petrucci, P.O., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
Ferreira, J, Ryan, L, Tilbury, D
No abstract available.
A unified accretion-ejection paradigm for Black Hole X-ray Binaries (2005)
Ferreira, J., Petrucci, P. O., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
Santos, M. L., Ferreira, J., Raposo, C. A.
We prove the exponential decay in the case $n>2$, as time goes to infinity, of regular solutions for the nonlinear beam equation with memory and weak damping $u_{tt}+\Delta^{2}u-$$M(\|\nabla...
A multi-flow model for microquasars (2005)
Petrucci, P. O., Ferreira, J., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
Ferreira,J., Bastos,M. F., Pelizon,A. C., Peres,C. M., Cavalcante,D. P., Sartori,A.
Alternative sources of anti-ophidic serum are being investigated due to the secondary effects associated with types I and II hypersensitivity reactions. In the present study we raised and evaluated...
Vaz, F., Ferreira, J., Ribeiro, E., Rebouta, L., Lanceros-Méndez, S., Mendes, J., ...
This paper reports on the preparation of TiNx thin films by d.c. reactive magnetron sputtering. The coating thickness ranged from 1.7 to 4.2 Am and the nitrogen content varied between 0 and 55 at.%....
A multi-flow model for microquasars (2005)
Petrucci, P. O., Ferreira, J., Henri, G., Sauge, L., Pelletier, G.
We present a new picture for the central regions of Black Hole X-ray Binaries. In our view, these central regions have a multi-flow configuration which consists in (1) an outer standard accretion...
M. L. Santos, J. Ferreira, C. A. Raposo
We prove the exponential decay in the case n>2, as time goes to infinity, of regular solutions for the nonlinear beam equation with memory and weak damping...
M. L. Santos, J. Ferreira, C. A. Raposo
We prove the exponential decay in the case n>2, as time goes to infinity, of regular solutions for the nonlinear beam equation with memory and weak damping...
Applying Magnetized Accretion-Ejection Models to Microquasars: a preliminary step (2004)
Petrucci, P. O., Ferreira, J., Tricot, S., Pelletier, G., Cabanac, C., Henri, G.
We present in this proceeding some aspects of a model that should explain the spectral state changes observed in microquasars. In this model, ejection is assumed to take place only in the innermost...
Ferreira, J., Raposo, C. A., Santos, M. L.
We consider a nonlinear coupled system of two wave equations with memory condition at the boundary and we study the asymptotic behavior of the corresponding solutions. We proved that the energy decay...
Predicted rotation signatures in MHD disc winds and comparison to DG Tau observations (2004)
Pesenti, N., Dougados, C., Cabrit, S., Ferreira, J., Casse, F., Garcia, P., ...
Motivated by the first detections of rotation signatures in the DG Tau jet (Bacciotti et al. 2002), we examine possible biases affecting the relation between detected rotation signatures and true...
Small sawtooth regimes in JET plasmas (2004)
Nave,M. F. F., Coda,S., Galvao,R., Graves,J., Koslowski,R., Mantsinen,M., ...
Tritium transport experiments on the JET tokamak (2004)
Adams,J. M., Baranov,Yu., Belo,P., Bertalot,L., Brzozowski,H. J., ...
Small sawtooth regimes in JET plasmas (2004)
Nave, M. F. F., Coda, S., Galvao, R., Graves, J., Koslowski, R., Mantsinen, M., ...
Tritium transport experiments on the JET tokamak (2004)
Adams, J. M., Baranov, Yu., Belo, P., Bertalot, L., Brzozowski, H. J., ...
Tritium transport experiments on the JET tokamak (2004)
Zastrow, K. D., Adams, J. M., Baranov, Y., Belo, P., Bertalot, L., Brzozowski, J. H., ...
An overview is given of the experimental method, the analysis technique and the results for trace tritium experiments conducted on the JET tokamak in 2003. Observations associated with events such as...
Near-IR [Fe II] emission diagnostics applied to cold disk winds in young stars (2003)
Pesenti, N., Dougados, C., Cabrit, S., O'Brien, D., Garcia, P., Ferreira, J.
We investigate the emissivity properties of the main near-IR transitions of the Fe+ ion in the conditions prevailing in the inner regions of jets from young stars, based on a simplified 16-level atom...
Benabidallah, R., Cavalcanti, M. M., Domingos Cavalcanti, V. N., Ferreira, J.
In this paper we prove the existence, uniqueness and asymptotic behaviour of global regular solutions of the mixed problem for the Kirchhoff nonlinear model given by the hyperbolic-parabolic equation...
Corrosion behaviour of substoichiometric TiNx films produced by DC magnetron sputtering (2003)
Ariza, E., Rocha, L. A., Vaz, F., Rebouta, L., Ferreira, J., Alves, E., ...
The present work describes the corrosion behaviour of substoichiometric TiNx films obtained by dc reactive magnetron sputtering. The coatings thickness ranged from 1.7 to 4.2 µm and the nitrogen...
End-to-end traffic model for Enhanced UMTS IP services (2003)
Pitsillides, A., Jacovides, N., Hadjipollas, G., Antoniou, J., Heijenk, G.J., Lo, A., ...
Overview of JET results (2003)
Pamela, J., Solano, E. R., Adams, J. M., Agarici, G., Agarici, M., Akhter, H., ...
Scientific and technical activities on JET focus on the issues likely to affect the ITER design and operation. Our understanding of the ITER reference mode of operation, the ELMy H-mode, has...
M. L. Santos, J. Ferreira, C. A. Raposo
We prove the exponential decay in the case n>2, as time goes to infinity, of regular solutions for the nonlinear beam equation with memory and weak damping utt + ∆ 2 u− M(�∇u � 2 L2...
Cordano, G., Pezoa, J., Muñoz, S., Rivera, E., Medina, Jorge, Núñez Vergara, Luis J., ...
The effects of some imine and amine derivatives of vanillin on the respiration rate of mouse mammary adenocarcinoma TA3 line, its multiresistant variant TA3-MTX-R line and mouse hepatocytes, together...
MÍDIA E CONHECIMENTO: OBJETOS EM TORNO DO CONCEITO DE DISPOSITIVO (2002)
Trabalho apresentado no NP11 - Comunicação Educativa , evento componente do XXV Congresso Brasileiro de Ciências da Comunicação, Salvador, BA, 2002
@Home - Ein neues EU-Projekt zum Tele Home Care (2002)
Sachpazidis, I., Stassinakis, A., Memos, D., Fragou, S., Vamvatsikos, A., Stavropoulou, A., ...
@Home ist eine robuste Plattform für das gleichzeitige Remotemonitoring von Patienten in ihren Häusern durch Ärzte in Krankenhäusern. Gesundheit überwachende Sensore, haben die Fähigkeit...
EURESCOM - P809, Network Architecture for Broadband Mobility: Deliverable 2, February 1999 (1999)
Todorova, P., Brandt, H., Hazem, R., Guedj, C., Huon, Y., Menard, D., ...
Antioxidant activity of gallates: an electrochemical study in aqueous media (1998)
Gunckel Ulisse, María Soledad, Santander Gutiérrez, Ingrid Paola, Cordano, G., Ferreira, J., Muñoz, S., Núñez Vergara, Luis J., ...
The electron-donating ability of gallates, which are food and pharmaceutical antioxidants, is quantitatively assessed on the basis of their electrochemical characteristics. Gallic acid and the...
A Digital Library for a Virtual Organization (1998)
José Luis Borbinha, J. Ferreira, Jos� Luis Borbinha, J. Delgado, Joaquim A Jorge, Jos� Delgado
In this paper we discuss the digital library metaphor and introduce the concept of networked digital library, here defined as a library with the additional mission of stimulating, supporting,...
VHDL Fault Simulation for Defect-Oriented Test and Diagnosis of Digital ICs (1996)
F. Celeiro, L. Dias, J. Ferreira, M. B. Santos, J. P. Teixeira
jct�spirou.inesc.pt For high quality VLSI products, exhibiting very low escape rates, defect-oriented testing becomes mandatory. The design activity is more and more supported by hardware...
EXPERIMENTAL K X-RAY RELATIVE TRANSITION PROBABILITIES (1987)
Marques, M., Martins, M., Ferreira, J.
Measurements of K X-ray relative intensities are under way in our group for elements with 47≤Z≤81. Kα2/Kα1 values are presented in this work.
EXPERIMENTAL K X-RAY RELATIVE TRANSITION PROBABILITIES (1987)
Marques, M., Martins, M., Ferreira, J.
Measurements of K X-ray relative intensities are under way in our group for elements with 47≤Z≤81. Kα2/Kα1 values are presented in this work.
EXPERIMENTAL K X-RAY RELATIVE TRANSITION PROBABILITIES (1987)
Marques, M., Martins, M., Ferreira, J.
Measurements of K X-ray relative intensities are under way in our group for elements with 47≤Z≤81. Kα2/Kα1 values are presented in this work.
Ferreira, J., Coutinho-Filho, M.
In this paper we analyse the effect of impurity Cr+4 ions on the FMR linewidth (ΔH) of Ag-doped CdCr2Se4 single crystals. By assuming that the impurity ions has two lowlying energy levels, we...
Ferreira, J., Coutinho-Filho, M.
In this paper we analyse the effect of impurity Cr+4 ions on the FMR linewidth (ΔH) of Ag-doped CdCr2Se4 single crystals. By assuming that the impurity ions has two lowlying energy levels, we...
Ferreira, J., Coutinho-Filho, M.
In this paper we analyse the effect of impurity Cr+4 ions on the FMR linewidth (ΔH) of Ag-doped CdCr2Se4 single crystals. By assuming that the impurity ions has two lowlying energy levels, we...
Small sawtooth regimes in JET plasmas
Nave,M. F. F., Buttery,R., Challis,C., Coda,S., De Baar,M., Ferreira,J., ...
Tritium transport experiments on the JET tokamak
Adams,J. M., Baranov,Yu., Belo,P., Bertalot,L., Brzozowski,H. J., ...
Pombo, A, Ferreira, J, Bridge, E, Carmo-Fonseca, M
We have visualized the intranuclear topography of adenovirus replication and transcription in infected HeLa cells. The results show that viral DNA replication occurs in multiple foci that are highly...
Rats malnourished since birth and fed on a protein-free diet for 2 weeks showed a 23-27% decrease in the State-3 oxidation of glutamate, succinate and ascorbate + NNN'...
Funke, B, Edelmann, L, McCain, N, Pandita, R K, Ferreira, J, Merscher, S, ...
Derivative 22 (der[22]) syndrome is a rare disorder associated with multiple congenital anomalies, including profound mental retardation, preauricular skin tags or pits, and conotruncal heart...
Pombo, A, Ferreira, J, Bridge, E, Carmo-Fonseca, M
We have visualized the intranuclear topography of adenovirus replication and transcription in infected HeLa cells. The results show that viral DNA replication occurs in multiple foci that are highly...
Rats malnourished since birth and fed on a protein-free diet for 2 weeks showed a 23-27% decrease in the State-3 oxidation of glutamate, succinate and ascorbate + NNN'...
Funke, B, Edelmann, L, McCain, N, Pandita, R K, Ferreira, J, Merscher, S, ...
Derivative 22 (der[22]) syndrome is a rare disorder associated with multiple congenital anomalies, including profound mental retardation, preauricular skin tags or pits, and conotruncal heart...
Small sawtooth regimes in JET plasmas
Nave, M. F. F., Buttery, R., Challis, C., Coda, S., De Baar, M., Ferreira, J., ...
Tritium transport experiments on the JET tokamak
Adams, J. M., Baranov, Yu., Belo, P., Bertalot, L., Brzozowski, H. J., ...
Predominance of type 1 CD4+T cells in human abdominal aortic aneurysm
Galle, C, Schandené, L, Stordeur, P, Peignois, Y, Ferreira, J, Wautrecht, J-C, ...
The functional repertoire of T cells in abdominal aortic aneurysm (AAA) and the exact nature of aortic wall adaptive cellular immune responses still remains a matter of debate. In this study, we...
Potential mapping of corneal dermoids to Xq24-qter
Dar, P., Javed, A., Ben-Yishay, M., Ferreira, J., Paterson, A., Gross, S., ...
Evidence of Inward Toroidal Momentum Convection in the JET Tokamak
Tala, T., Ferreira, J., Mantica, P., Peeters, A. G., Tardini, G., ...
Angular momentum studies with NBI modulation in JET
Tardini, G., Ferreira, J., Mantica, P., Peeters, A. G., Tala, T., Zastrow, K. D., ...
On the Non-parametric Prediction of Conditionally Stationary Sequences
non-parametric prediction, conditional distribution function, conditional expectation, time series, data analysis,