T. Martinez

Publication List Details

Period

1990 - 2009

Number

30

Co-Authors

Identification of yrast high-K intrinsic states in Os-188 (2009)

Modamio, V., Jungclaus, A., Podolyak, Z., Shi, Y., Xu, F.R., Algora, Alejandro, ...

The high-spin structure of the Z=76 nucleus Os-188 has been studied using the incomplete fusion reaction Li-7+W-186. A K-pi=10(+) band has been established up to spin (24(+)) and its crossing with...

Design of the 6.5 m MMT adaptive optics system, and results from its prototype system FASTTRAC II (2008)

Lloyd-Hart Angel, T. D. Groesbeck, T. Martinez, B. P. Jacobsen

The first images of astronomical objects have been obtained with a telescope exploiting wavefront compensation with adaptive optics where the reference beacon was generated by laser excitation of...

Final review of adaptive optics results from the pre-conversion MMT (2007)

M. Lloyd-hart, M. Lloyd-hart, R. Angel, R. Angel, T. Groesbeck, ...

The FASTTRAC II adaptive optics instrument has been used at the Multiple Mirror Telescope (MMT) for the past 2 years to provide improved image resolution in the near infrared. Results have been...

Final review of adaptive optics results from the pre-conversion MMT (2007)

D. Mccarthy, T. Martinez, B. Jacobsen, G. Brusa, K. Hege, E. Hooper, ...

The FASTTRAC II adaptive optics instrument has been used at the Multiple Mirror Telescope (MMT) for the past 2 years to provide improved image resolution in the near infrared. Results have been...

High-Spin Gamma-Ray Spectroscopy in Mn-52 (2007)

Axiotis, M, Lenzi, S M, Marginean, N, Napoli, D R, Ur, C A, Brandolini, F, ...

The electromagnetic decay properties of high-spin states in Mn-52 have been studied through various experiments with the GASP and EUROBALL arrays plus the ISIS light charged-particle detector and the...

Yrast Studies of Se-80,Se-82 Using Deep-Inelastic Reactions (2007)

Jones, G A, Regan, P H, Podolyak, Z, Yoshinaga, N, Higashiyama, K, De Angelis, G, ...

We report the results of an experiment in which we studied the near-yrast states in selenium isotopes approaching N=50 following their population in multinucleon transfer reactions between a Se-82...

Observation of Ni-54 : Cross-Conjugate Symmetry in f(7/2) Mirror Energy Differences (2006)

Gadea, A, Lenzi, S M, Lunardi, S, Marginean, N, Zuker, A P, De Angelis, G, ...

Gamma decays from excited states up to J(pi)=6() in the N=Z-2 nucleus Ni-54 have been identified for the first time. Level energies are compared with those of the isobars Co-54 and Fe-54 and of the...

DOI 10.1007/s10994-006-6266-6 Classification-based objective functions (2006)

Michael Rimer, Tony Martinez, M. Rimer, T. Martinez, T. Martinez

Abstract Backpropagation, similar to most learning algorithms that can form complex decision surfaces, is prone to overfitting. This work presents classification-based objective functions, an...

Observation of negative-parity high-spin states of As-68 (2005)

Lieb, KP, De Angelis, G, Curien, D, Eberth, J, ...

The neutron-deficient nucleus As-68 was populated at high spin in two experiments using the reaction Ca-40(S-32, 3pn) at beam energies of 105 and 95 MeV. A self-supporting and a gold-backed, highly...

High-Spin States in the Nuclei Y-91 and Nb-95 (2005)

Bucurescu, D, Podolyak, Z, Rusu, C, De Angelis, G, Zhang, Y H, Cata-Danil, G, ...

The positive-parity yrast states in the Y-91 and Nb-95 nuclei have been studied by gamma-ray spectroscopy following heavy-ion-induced fusion-evaporation reactions. The lowest-lying transitions in...

Lifetime Measurements of Normal Deformed States in Lu-165(71) (2005)

Andgren, K, Podolyak, Z, Dewald, A, Xu, F R, Algora, A, Axiotis, M, ...

Picosecond lifetimes of medium spin states in Lu-165 were measured for the first time. The reaction used to populate the nucleus of interest was La-139(Si-30,4n)Lu-165 at a beam energy of 135 MeV....

High-spin states and band terminations in As-69 (2004)

Eberth, J, Gersch, G, Steinhardt, T, Thelen, O, Warr, N, ...

Excited levels in As-69 were studied using the Ca-40(S-32,3p)As-69 reaction at 95 and 105 MeV beam energy. Gamma rays were detected with the EUROBALL spectrometer operated in conjunction with the...

Level structure of Se-69 (2004)

Eberth, J, De Angelis, G, Warr, N, Gersch, G, Steinhardt, T, ...

Excited levels in Se-69 have been studied using the Ca-40(S-32,2pn)Se-69 reaction at 95- and 105-MeV beam energy. gamma rays have been detected with the EUROBALL spectrometer operated in conjunction...

Stability of the N=50 Shell Gap in the Neutron-Rich Rb, Br, Se, and Ge Isotones (2004)

Zhang, Y H, Podolyak, Z, De Angelis, G, Gadea, A, Ur, C, Lunardi, S, ...

The low- and medium-spin states of the N=50 neutron-rich, Rb-87(37), Br-85(35), Se-84(34) and Ge-82(32) isotones have been populated in deep-inelastic processes produced by the interaction of 460 MeV...

High-Spin Behavior of Multiple Bands in the N = Z+1 Nucleus Zr-81: A Possible Probe of Enhanced Neutron-Proton Correlations (2004)

Marginean, N, Bucurescu, D, Alvarez, C R, Ur, C A, Sun, Y, Bazzacco, D, ...

A new experimental investigation of the level scheme of the N=Z+1 nucleus Zr-81 is reported. An additional band assigned to the [431]1/2(+) orbital has been observed and the known [422]5/2(+) and...

High-Spin States in Ru-90 and the Projected Shell Model Description (2004)

Bucurescu, D, Marginean, N, Alvarez, C R, Sun, Y, Ur, C A, Mihailescu, L C, ...

The neutron deficient Asimilar to90 nuclei constitute a good testing ground for shell model approaches based on spherical or deformed basis. New experimental data are presented for the Ru-90 nucleus,...

Variation in indoor thoron levels in Mexico City dwellings (2004)

Martinez, T., Navarrete, M., Gonzalez, P., Ramírez, A

This paper presents the results obtained for thoron concentration in 50 single-family dwellings in normal occupancy conditions (open house conditions), measured by a passive electret system (type...

Four-quasiparticle alignments in Ge-66 (2003)

De Angelis, G, Curien, D, Eberth, J, Farnea, E, ...

The neutron-deficient nucleus Ge-66 was populated at high spin in two experiments using the reaction Ca-40(S-32,alpha2p) at beam energies of 105 and 95 MeV. In the first experiment, a self-supporting...

Four-quasiparticle alignments in Ge-66 (2003)

De Angelis, G, Curien, D, Eberth, J, Farnea, E, ...

Above angular momentum 10(+), we found two positive-parity sequences, connected by energetically staggered DeltaI = 1 M1 transitions. The total Routhian surface calculations predict a strong triaxial...

FIRST ASTRONOMICAL IMAGES SHARPENED WITH ADAPTIVE OPTICS USING A SODIUM LASER GUIDE STAR M. Lloyd-Hart, J. R. P. Angel, T. D. Groesbeck, T. Martinez, B. P. Jacobsen, B. A. McLeod (1998)

Mccarthy Hooper Hege, M. Lloyd-hart, M. Lloyd-hart, T. D. Groesbeck, ...

Adaptive optics with a sodium resonance laser guide star was used at the Multiple Mirror Telescope (MMT) in 1996 April to image the core of the globular cluster M13 (NGC 6205). A 23 field was...

FIRST ASTRONOMICAL IMAGES SHARPENED WITH ADAPTIVE OPTICS USING A SODIUM LASER GUIDE STAR M. Lloyd-Hart, J. R. P. Angel, T. D. Groesbeck, T. Martinez, B. P. Jacobsen, B. A. McLeod (1998)

Mccarthy Hooper, M. Lloyd-hart, M. Lloyd-hart, T. D. Groesbeck, ...

Adaptive optics with a sodium resonance laser guide star was used at the Multiple Mirror Telescope (MMT) in 1996 April to image the core of the globular cluster M13 (NGC 6205). A 23² field was...

FASTTRAC II near--IR adaptive optics system for the Multiple Mirror Telescope: description preliminary results (1995)

Gray Lloyd--Hart, T. Martinez, L. M. Close, G. Brusa, D. G. Bruns, B. A. Mcleod, ...

A new adaptive optics system has been constructed for moderately high resolution in the near infrared at the Multiple Mirror Telescope (MMT). The system, called FASTTRAC II, has been designed to...

An experimental model of chronic osteomyelitis caused by Escherichia coli treated with cefotaxime (1990)

Gomis, M., Herranz, A., Aparicio, P., Fe, A., Alonso, M. J., Prieto, J., ...

An experimental model in Wistar rats, of osteomyelitis caused by Escherichia coli, was used to evaluate the efficacy of cefotaxime in two treatment regimens of different durations. Four groups of...

Mesosphere Sodium Column Density and the Sodium Laser Guide Star Brightness

Jian Ge, B. D. Jacobsen, T. Roberts, T. Martinez, W. Livingston, ...

The first time simultaneous measurements of sodium column density and the absolute flux from a sodium laser guide star, created by a monochromatic 3 W cw laser, tuned to the peak of the sodium D 2...

Mesosphere Sodium Column Density and the Sodium Laser Guide Star Brightness

Jian Ge, B.D. Jacobsen, T. Roberts, T. Martinez, W. Livingston, ...

The #rst time simultaneous measurements of sodium column density and the absolute #ux from a sodium laser guide star, created by a monochromatic 3 W cw laser, tuned to the peak of the sodium D 2...