Counting Rational Points on Cubic Curves (2009)
We prove upper bounds for the number of rational points on non-singular cubic curves defined over the rationals. The bounds are uniform in the curve and involve the rank of the corresponding...
Measurement of the damping rate of stable AEs on the (2008)
D. Testa, A. Fasoli, A. Jaun, T. Bolzonella, C. D. Challis, J. Mailloux, ...
JET tokamak in limiter and diverted plasmas with monotonic and non-monotonic q-profiles.
The magnetic diagnostics set for ITER (2008)
Chavan, R., Chitarin, G., Delogu, R.S., Encheva, A., Hodgson, E., Ingesson, C., ...
A simple uniform approach to complexes arising from forests (2007)
In this paper we present a unifying approach to study the homotopy type of several complexes arising from forests. We show that this method applies uniformly to many complexes that have been...
Chapter 5: Physics of energetic ions (2007)
Fasoli, A., Gormenzano, C., Berk, H.L., Breizman, B., Briguglio, S., Darrow, D.S., ...
Chapter 5: Physics of energetic ions (2007)
Fasoli, A., Gormenzano, C., Berk, H. L., Breizman, B., Briguglio, S., Darrow, D. S., ...
This chapter reviews the progress accomplished since the redaction of the first ITER Physics Basis (1999 Nucl. Fusion 39 2137-664) in the field of energetic ion physics and its possible impact on...
Chapter 5: Physics of energetic ions (2007)
FASOLI, A, GORMENZANO, C, BERK, HL, BREIZMAN, B, BRIGUGLIO, S, DARROW, DS, ...
Proton-triton nuclear reaction in ICRF heated plasmas in JET (2006)
Santala, M.I.K., Mantsinen, M.J., Bertalot, L., Conroy, S., Kiptily, V., Popovichev, S., ...
A new approach for the development of Disruption Protection-Avoidance Tools for JET (2006)
Zedda, M.K., Testa, D., Cannas, B., Fanni, A., Piccolo, F., Sartori, F., ...
A new approach for the development of disruption protection-avoidance tools for JET (2006)
Zedda, M.K., Testa, D., Cannas, B., Fanni, A., Piccolo, F., Sartori, F., ...
The role of the radial electric field for the transition to high confinement regimes (2006)
Testa, D., Garzotti, L., Giroud, C.
The radial electric field E-r(x, t), and particularly its gradient, has been invoked by various theories and empirical models as a crucial parameter 'per se' for determining the transition to high...
Testa, D., Fasoli, A., Boswell, C.
In this paper we have investigated the effect of reversing the direction of the magnetic field and plasma current, hence the ion del B-drift direction, on the instability threshold of toroidal Alfven...
Proton-triton nuclear reaction in ICRF heated plasmas in JET (2006)
Santala, M. I. K., Mantsinen, M. J., Bertalot, L., Conroy, S., Kiptily, V., Popovichev, S., ...
Fast protons can react with tritons in an endothermic nuclear reaction which can act as a source of neutrons in magnetically confined fusion plasmas. We have performed an experiment to systematically...
Salmi, A., Mantsinen, M. J., Beaumont, P., De Vries, P., Eriksson, L. G., Gowers, C., ...
Experiments have been performed on the JET tokamak with 2nd harmonic ion cyclotron resonance heating (ICRH) of hydrogen in deuterium plasmas to assess the role of finite Larmor radius (FLR) effects...
X-mode reflectometry measurements in the JET plasma core region - art. no. 10E925 (2006)
Hacquin, S., Meneses, L., Cupido, L., Sharapov, S., Alper, B., Fessey, J., ...
The X-mode radial correlation reflectometry diagnostic on JET has long suffered from strong signal attenuation in the original transmission lines. To reach higher performances, new low-attenuation...
X-mode reflectometry measurements in the JET plasma core region (2006)
Hacquin, S., Meneses, L., Cupido, L., Sharapov, S., Alper, B., Fessey, J., ...
The X-mode radial correlation reflectometry diagnostic on JET has long suffered from strong signal attenuation in the original transmission lines. To reach higher performances, new low-attenuation...
Proton-triton nuclear reaction in ICRF heated plasmas in JET (2006)
SANTALA, MIK, MANTSINEN, MJ, BERTALOT, L, CONROY, S, KIPTILY, V, POPOVICHEV, S, ...
Del Mastro, L., Catzeddu, T., Boni, L., Bell, C., Sertoli, M. R., Bighin, C., ...
Background: Standard methods to prevent chemotherapy-induced early menopause in young, breast cancer patients are unavailable to date. Preclinical data has suggested that luteinising...
Structural analysis of the jet TAE antenna (2005)
Titus, P. H., Snipes, J., Fasoli, A. F., Testa, D., Walton, B.
In this paper the mechanical design of the new active MHD antennas for JET is described and the structural/mechanical analysis for the antennas is presented. These new antennas replace the existing n...
Testa, D., Boswell, C., Fasoli, A.
The dependence of the measured damping rate (gamma/omega) on the value of the safety factor on axis (q(0)) and of the toroidal rotation shear has been experimentally determined for n = 1 toroidal...
Current losses induced by edge localized modes in JET tokamak plasmas (2005)
We have investigated the effect of edge localized modes (ELMs) on the total plasma current in JET tokamak plasmas using the earth leakage current detection circuit connected to the in-vessel saddle...
ELMS and strike point jumps (2005)
Solano, E. R., Jachmich, S., Villone, F., Hawkes, N., Corre, Y., Pitts, R. A., ...
If an ELM is a peeling of flux surfaces from the plasma, due to a broken separatrix, current density is lost as well as particles and energy. The fast loss of a current-carrying plasma layer modifies...
Experimental studies of instabilities and confinement of energetic particles on JET and MAST (2005)
Sharapov, S. E., Alper, B., Andersson, F., Baranov, Y. F., Berk, H. L., Bertalot, L., ...
In preparation for next step burning plasma devices such as ITER, experimental studies of instabilities and confinement of energetic ions were performed on Joint European Torus (JET) and on...
'Burning plasma' diagnostics for the physics of JET and ITER (2005)
Murari, A., Bertalot, L., Bonheure, G., Conroy, S., Ericsson, G., Kiptily, V., ...
JET's recent experimental programme proved that 'burning plasma diagnostics', i.e. neutron, alpha particle, He ash, and fuel mixture measurements, can provide very useful information about crucial...
Experimental studies of instabilities and confinement of energetic particles on JET and MAST (2005)
SHARAPOV, SE, ALPER, B, ANDERSSON, F, BARANOV, YF, BERK, HL, BERTALOT, L, ...
Del Mastro, L., Catzeddu, T., Boni, L., Bell, C., Sertoli, M. R., Bighin, C., ...
Background: Standard methods to prevent chemotherapy-induced early menopause in young, breast cancer patients are unavailable to date. Preclinical data has suggested that luteinising...
Plasma Rotation Induced by Directed Waves in the Ion-Cyclotron Range of Frequencies (2004)
Johnson,T., Hellsten,T., Giroud,C., Kiptily,V., Brzozowski,M., ...
The role of energetic particles in fusion plasmas (2004)
Pinches,S. D., Berk,H. L., Borba,D. N., Breizman,B. N., Briguglio,S., Fasoli,A., ...
Monitoring Alfvén cascades with interferometry on the JET tokamak (2004)
Sharapov,S. E., Alper,B., Fessey,J., Hawkes,N. C., Young,N. P., Nazikian,R., ...
Salmi,A., Beaumont,P., De Vries,P., Helander,P., Laxaback,M., ...
Plasma Rotation Induced by Directed Waves in the Ion-Cyclotron Range of Frequencies (2004)
Johnson, T., Hellsten, T., Giroud, C., Kiptily, V., Brzozowski, M., ...
The role of energetic particles in fusion plasmas (2004)
Pinches, S. D., Berk, H. L., Borba, D. N., Breizman, B. N., Briguglio, S., Fasoli, A., ...
Monitoring Alfvén cascades with interferometry on the JET tokamak (2004)
Sharapov, S. E., Alper, B., Fessey, J., Hawkes, N. C., Young, N. P., Nazikian, R., ...
Monitoring Alfvén Cascades with Interferometry on the JET Tokamak (2004)
Sharapov, S. E., Alper, B., Fessey, J., Hawkes, N., Young, N., Nazikian, R., ...
This version is available at the following Publisher URL: http://prl.aps.org
Error analysis and parametric study of the JET high energy NPA (2004)
Schlatter, Ch., Cecconello, M., Testa, D., Murari, A., Santala, M.
Testa, D., Fasoli, A., Borba, D., De Baar, M., Bigi, M., Brzozowski, J., ...
We have investigated the effect of different ion cyclotron resonance frequency (ICRF) heating schemes, of error field modes, of the plasma shape and edge magnetic shear, and of the ion delB drift...
Monitoring Alfven cascades with interferometry on the JET Tokamak (2004)
Sharapov, S. E., Alper, B., Fessey, J., Hawkes, N. C., Young, N. P., Nazikian, R., ...
A microwave interferometry technique is applied for the first time for detecting a discrete spectrum of Alfven cascade (AC) eigenmodes excited with fast ions in reversed magnetic shear plasmas of the...
Schlatter, C., Testa, D., Cecconello, M., Murari, A., Santala, M.
Joint European Torus high energy neutral particle analyzer measures the flux of fast neutrals originating from the plasma core. From this data, the fast ion distribution function f(i)(fast),...
The role of energetic particles in fusion plasmas (2004)
Pinches, S. D., Berk, H. L., Borba, D. N., Breizman, B. N., Briguglio, S., Fasoli, A., ...
In the burning fusion plasmas of next step devices such as ITER (2001 ITER-FEAT Outline Design Report IAEA/ITER EDA/DS/ 18 (Vienna: IAEA) p 2 1), the majority of the heating of the fusing fuel will...
Plasma rotation induced by directed waves in the ion-cyclotron range of frequencies (2004)
Eriksson, L. G., Johnson, T., Hellsten, T., Giroud, C., Kiptily, V. G., Kirov, K., ...
Changes of the toroidal plasma rotation induced by directed waves in the ion-cyclotron range of frequencies (ICRF) have been identified experimentally for the first time on the JET tokamak. The...
Plasma rotation induced by directed waves in the ion-cyclotron range of frequencies (2004)
ERIKSSON, LG, JOHNSON, T, HELLSTEN, T, GIROUD, C, KIPTILY, VG, KIROV, K, ...
Spatially resolved toroidal plasma rotation with ICRF on JET (2003)
Righi,E., Chan,V., DeGrassie,J., Kirov,K., Mantsinen,M., ...
Plasmas heated by ICRF only in the JET tokamak show distinct structures in the toroidal rotation profile, with regions where &ddiff;ω/&ddiff;r>0 when the minority cyclotron resonance layer is far...
Sawtooth, neo-classical tearing mode and error field studies in JET (2003)
Hender,T. C., Sauter,O., Alper,B., Angioni,C., De Baar,M. R., De Benedetti,M., ...
A range of ITER relevant plasma stability issues has been studied in the JET tokamak; these include the effects of fast particles on sawteeth, control of NTMs via sawtooth seeds, scaling of m=2, n=1...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies (2003)
Assas,S., Giroud,C., DeGrassie,J., Hellsten,T., ...
Comparison of monochromatic and polychromatic ICRH on JET (2003)
Mantsinen,M. J., Laxaback,M., Salmi,A., Kiptily,V., Testa,D., Baranov,Y., ...
Spatially resolved toroidal plasma rotation with ICRF on JET (2003)
Righi, E., Chan, V., DeGrassie, J., Kirov, K., Mantsinen, M., ...
Plasmas heated by ICRF only in the JET tokamak show distinct structures in the toroidal rotation profile, with regions where &ddiff;ω/&ddiff;r>0 when the minority cyclotron resonance layer is far...
Sawtooth, neo-classical tearing mode and error field studies in JET (2003)
Hender, T. C., Sauter, O., Alper, B., Angioni, C., De Baar, M. R., De Benedetti, M., ...
A range of ITER relevant plasma stability issues has been studied in the JET tokamak; these include the effects of fast particles on sawteeth, control of NTMs via sawtooth seeds, scaling of m=2, n=1...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies (2003)
Assas, S., Giroud, C., DeGrassie, J., Hellsten, T., ...
Comparison of monochromatic and polychromatic ICRH on JET (2003)
Mantsinen, M.J., Laxaback, M., Salmi, A., Kiptily, V., Testa, D., Baranov, Y., ...
Alfvén wave stability and fast ion distributions in ITER relevant scenarios (2003)
Testa, D., Fasoli, A., Jaun, A., Mantsinen, M., Beaumont, P.
Experimental test of damping models for n=1 toroidal Alfven eigenmodes in JET (2003)
Testa, D., Fu, G. Y., Jaun, A., Fasoli, A., Sauter, O.
The damping rate of the n = 1 toroidal Alfven eigenmodes (TAE) mode in Ohmic-heated JET plasmas has been measured and compared with the prediction of the kinetic NOVA-K code, which includes electron...
Diagnosis and study of Alfven eigenmodes stability in JET (invited) (2003)
Testa, D., Fasoli, A., Solano, E.
Experiments are conducted on JET to assess the potential for plasma diagnostic spectroscopy and mode stability control, of Alfven eigenmodes (AEs), excited by external antennas and by energetic...
Testa, D., Fasoli, A., Jaun, A.
The dependence of the measured damping rate upon the neutral beam heating power (P-NBI) and plasma beta has been experimentally investigated for n = 1 toroidal Alfven eigenmodes (TAEs) in JET limiter...
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...
Onset of neoclassical tearing modes on JET (2003)
Buttery, R. J., Hender, T. C., Howell, D. F., La Haye, R. J., Sauter, O., Testa, D.
A detailed study has been made of the onset and behaviour of (m = 3, n = 2) neoclassical tearing modes (NTMs) on JET, validating many of the underlying concepts in NTM physics. In particular, fitting...
Bettella, D., Murari, A., Stamp, M., Testa, D.
Direct measurements of tokamak plasmas isotope composition are in general quite difficult and have therefore been very seldom performed. On the other hand, the importance of this measurement is going...
Spatially resolved toroidal plasma rotation with ICRF on JET (2003)
Noterdaeme, Jean-Marie, RIGHI, E, CHAN, V, DEGRASSIE, J, KIROV, K, MANTSINEN, M, ...
Comparison of monochromatic and polychromatic ICRH on JET (2003)
MANTSINEN, MJ, LAXABACK, M, SALMI, A, KIPTILY, V, TESTA, D, BARANOV, Y, ...
Modelling of Alfven waves in JET plasmas with the CASTOR-K code (2002)
Borba,D., Berk,H. L., Breizman,B. N., Fasoli,A., Nabais,F., Pinches,S. D., ...
A hybrid magnetohydrodynamic (M H D)-gyro-kinetic model CASTOR- K developed for the study of Alfven eigenmode (AE) stability in the presence of energetic ions has been applied to the interpretation...
Overview of results and possibilities for fast particle research on JET (2002)
Pamela,J., Stork,D., Solano,E., Baranov,Yu., Borba,D., Challis,C. D., ...
Alfvén wave cascades in a tokamak (2002)
Sharapov,S., Alper,B., Berk,H. L., Borba,D., Breizman,B. N., Challis,C. D., ...
Modelling of Alfven waves in JET plasmas with the CASTOR-K code (2002)
Borba, D., Berk, H. L., Breizman, B. N., Fasoli, A., Nabais, F., Pinches, S. D., ...
A hybrid magnetohydrodynamic (M H D)-gyro-kinetic model CASTOR- K developed for the study of Alfven eigenmode (AE) stability in the presence of energetic ions has been applied to the interpretation...
Overview of results and possibilities for fast particle research on JET (2002)
Pamela, J., Stork, D., Solano, E., Baranov, Yu., Borba, D., Challis, C. D., ...
Alfvén wave cascades in a tokamak (2002)
Sharapov, S., Alper, B., Berk, H. L., Borba, D., Breizman, B. N., Challis, C. D., ...
Sawtooth,neo-classical tearing mode and error field studies in JET (2002)
Hender, T.C., Sauter, O., Alper, B., Angioni, C., Pochelon, A., Testa, D.
Experimental study of the stability of Alfvén eigenmodes on JET (2002)
Testa, D., Fasoli, A., G., Fu, Jaun, A., Borba, D., De.Vries, P.
Measurement of Alfvén Waves on the JET Tokamak (2002)
Testa, D., Fasoli, A., Borba, D.N., G.Y., Fu, Jaun, A., Mantsinen, M.J., ...
Overview of results and possibilities for fast particle research on JET (2002)
Pamela, J., Stork, D., Solano, E., Baranov, Y. F., Borba, D., Challis, C. D., ...
The large physical size of the JET tokamak, its heating systems and diagnostics, and its capability to operate with full deuterium-tritium (D-T) plasmas, including high-power tritium neutral beam...
Fasoli, A., Testa, D., Sharapov, S., Berk, H. L., Breizman, B., Gondhalekar, A., ...
Experiments are conducted on the JET tokamak to demonstrate the diagnostic potential of Magneto-Hydro-Dynamics (MHD) spectroscopy, for the plasma bulk and its suprathennal components, using Alfven...
Modelling of Alfven waves in JET plasmas with the CASTOR-K code (2002)
Borba, D., Berk, H. L., Breizman, B. N., Fasoli, A., Nabais, F., Pinches, S. D., ...
A hybrid magnetohydrodynamic (M H D)-gyro-kinetic model CASTOR-K developed for the study of Alfven eigenmode (AE) stability in the presence of energetic ions has been applied to the interpretation of...
Sawtooth, Neo-Classical Tearing Mode and Error Field Studies in JET (2002)
T.C. Hender, O. Sauter, B. Alper, C. Angioni, M. Baar, M. Benedetti, ...
A range of ITER relevant plasma stability issues have been studied in the JET tokamak; these include the effects of fast particles on sawteeth, control of NTMs via sawteeth seeds, scaling of (2,1)...
Gyrokinetic modelling of macro-instabilities in high performance tokamak plasmas (2001)
Jaun, A., Fasoli, A., Testa, D., Vaclavik, J., Villard, L.
The modelling of Alfvenic instabilities is discussed from the point of view of mode-conversion, showing how the development of the theory affects the predictions as the limitations of the models are...
Cloning with tandem gene systems for high level gene expression (1984)
Lee, Nancy, Cozzitorto, J., Wainwright, N., Testa, D.
A method has been devised for increasing the copy number of a gene (or genes) cloned into a plasmid while minimizing the size of the plasmid. If n copies of a transcriptional unit are cloned,...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies
Assas,S., Giroud,C., DeGrassie,J., Hellsten,T., ...
Comparison of monochromatic and polychromatic ICRH on JET
Mantsinen,M. J., Laxaback,M., Salmi,A., Kiptily,V., Testa,D., Baranov,Y., ...
The Role of Energetic Particles in Fusion Plasmas
Pinches,S. D., Berk,H. L., Borba,D. N., Fasoli,A., Gryaznevich,M., Kiptily,V., ...
Salmi,A., Beaumont,P., De Vries,P., Gowers,C., Helander,P., ...
Efficient transformation and regeneration of rice small cell groups.
Lee, N, Wang, Y, Yang, J, Ge, K, Huang, S, Tan, J, ...
Transgenic plants have been regenerated from small cell groups of rice using a simpler, faster, and more efficient method than used previously (e.g., protoplast transformation and regeneration...
Site-specific mutagenesis method which completely excludes wild-type DNA from the transformants.
Lee, N, Liu, J, He, C, Testa, D
A highly efficient site-specific mutagenesis method has been devised to exclude wild-type DNA from incorporation into the transformed cells. Two complementary oligonucleotides, corresponding to a...
Cloning with tandem gene systems for high level gene expression.
Lee, N, Cozzitorto, J, Wainwright, N, Testa, D
A method has been devised for increasing the copy number of a gene (or genes) cloned into a plasmid while minimizing the size of the plasmid. If n copies of a transcriptional unit are cloned,...
Sonenberg, N, Morgan, M A, Testa, D, Colonno, R J, Shatkin, A J
A variety of 5'-3H-methyl-labeled, oxidized viral mRNAs were used as probes for detecting in wheat germ initiation complexes proteins that interact with, and can be cross-linked to, the 5'-cap...
Testa, D, Chanda, P K, Banerjee, A K
Under the normal conditions of in vitro RNA synthesis, the virion-associated RNA polymerase of vesicular stomatitis virus synthesizes five monocristronic mRNAs and a 48-nucleotide-long leader RNA...
Two methyltransferase activities in the purified virions of vesicular stomatitis virus.
In addition to an RNA-dependent RNA polymerase, purified vesicular stomatitis virus contains a methyltransferase activity which transfers the methyl group from the methyl donor,...
Efficient transformation and regeneration of rice small cell groups.
Lee, N, Wang, Y, Yang, J, Ge, K, Huang, S, Tan, J, ...
Transgenic plants have been regenerated from small cell groups of rice using a simpler, faster, and more efficient method than used previously (e.g., protoplast transformation and regeneration...
Site-specific mutagenesis method which completely excludes wild-type DNA from the transformants.
Lee, N, Liu, J, He, C, Testa, D
A highly efficient site-specific mutagenesis method has been devised to exclude wild-type DNA from incorporation into the transformed cells. Two complementary oligonucleotides, corresponding to a...
Cloning with tandem gene systems for high level gene expression.
Lee, N, Cozzitorto, J, Wainwright, N, Testa, D
A method has been devised for increasing the copy number of a gene (or genes) cloned into a plasmid while minimizing the size of the plasmid. If n copies of a transcriptional unit are cloned,...
Sonenberg, N, Morgan, M A, Testa, D, Colonno, R J, Shatkin, A J
A variety of 5'-3H-methyl-labeled, oxidized viral mRNAs were used as probes for detecting in wheat germ initiation complexes proteins that interact with, and can be cross-linked to, the 5'-cap...
Testa, D, Chanda, P K, Banerjee, A K
Under the normal conditions of in vitro RNA synthesis, the virion-associated RNA polymerase of vesicular stomatitis virus synthesizes five monocristronic mRNAs and a 48-nucleotide-long leader RNA...
Two methyltransferase activities in the purified virions of vesicular stomatitis virus.
In addition to an RNA-dependent RNA polymerase, purified vesicular stomatitis virus contains a methyltransferase activity which transfers the methyl group from the methyl donor,...
Bulk Plasma Rotation in the Presence of Waves in the Ion Cyclotron Range Frequencies
Assas, S., Giroud, C., DeGrassie, J., Hellsten, T., ...
Comparison of monochromatic and polychromatic ICRH on JET
Mantsinen, M. J., Laxaback, M., Salmi, A., Kiptily, V., Testa, D., Baranov, Y., ...
The Role of Energetic Particles in Fusion Plasmas
Pinches, S. D., Berk, H. L., Borba, D. N., Fasoli, A., Gryaznevich, M., Kiptily, V., ...
Affective symptoms in multiple system atrophy and Parkinson's disease: response to levodopa therapy
Fetoni, V, Soliveri, P, Monza, D, Testa, D, Girotti, F
The objective was to determine the extent to which psychiatric disturbances (especially mood disorders) generally considered poor prognostic factors, are present in patients with striatonigral (SND)...
Soliveri, P., Monza, D., Paridi, D., Carella, F., Genitrini, S., Testa, D., ...
OBJECTIVES—Impairment of executive function is frequent in Parkinson's disease (PD), striatonigral degeneration-type multisystem atrophy (SND), and progressive supranuclear palsy (PSP); sometimes...
Outcome assessment in patients with chronic obstructive rhinitis CO2 laser treated
Testa, D, Motta, G, Galli, V, Iovine, R, Guerra, G, Marenzi, G, ...
Surgical lasers have been used to restore nasal flow in chronic obstructive rhinitis, with a significant improvement in symptoms having been reported in almost all cases. However, evidence supporting...
Nuclear technology aspects of ITER vessel-mounted diagnostics
Vayakis, G., Bertalot, L., Encheva, A., Walker, C., Brichard, B., Cheon, M. S., ...
OPN/CD44v6 overexpression in laryngeal dysplasia and correlation with clinical outcome
Staibano, S, Merolla, F, Testa, D, Iovine, R, Mascolo, M, Guarino, V, ...
Laryngeal dysplasia is a common clinical concern. Despite major advancements, a significant number of patients with this condition progress to invasive squamous cell carcinoma. Osteopontin (OPN) is a...