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3,886 results on '"Torres, L. A."'

1. Chiral magnon-polaron edge states in Heisenberg-Kitaev magnets

Author

Mella, Jose D., Torres, L. E. F. Foa, and Troncoso, Roberto E.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The interplay of spin and lattice fluctuations in two-dimensional magnets without inversion symmetry is investigated. We find a general form for the magnetoelastic coupling between magnons and existing chiral phonons based on the symmetries of the crystalline lattice. We show that in hexagonal lattices, the coupling of magnons and chiral phonons derives from an anisotropic exchange spin model containing topological phases of magnons. Using the Heisenberg-Kitaev-$\Gamma$ model, we show how magnon-polaron edge states with circular polarization arise from this interaction. Our findings exploit the polarization degrees of freedom in spin-lattice systems, thus setting the ground for the transfer of angular momentum between chiral phonons and magnons., Comment: 7 pages, 2 figures

Published
2024
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2. Evaluation of computational and energy performance in matrix multiplication algorithms on CPU and GPU using MKL, cuBLAS and SYCL

Author

Torres, L. A., H, Carlos J. Barrios, and Denneulin, Yves

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing, Computer Science - Hardware Architecture
Abstract

Matrix multiplication is fundamental in the backpropagation algorithm used to train deep neural network models. Libraries like Intel's MKL or NVIDIA's cuBLAS implemented new and optimized matrix multiplication techniques that increase performance and reduce computational costs. These techniques can also be implemented in CUDA and SYCL and functions with AVX2 and AVX512 instructions, which have lower performance but better precision. The study compares execution times and power consumption using PAPI and PERF and compares accuracy for different matrix sizes. Comparisons were made on architectures such as third and fourth-generation Intel CPUs and NVIDIA V100 and A100 GPUs. The MKL library showed the best performance with a slight loss of precision, while OpenMP and SYCL on the CPU implementation showed the best accuracy but a loss of performance. On the other hand, the results on GPU showed that cuBLAS with tensor cores had the best performance; however, it had a cost in accuracy. The cuBLAS library without these specialized cores shows minimal performance loss and much higher accuracy. The data obtained on different architectures showed that the CPU could achieve performance close to that obtained on the GPU with increased power consumption. These results are conditional on certain hardware specifications, such as the number of cores, clock frequency, processor generation for the CPU, and the speed and bandwidth of the PCI bus and device architecture (compute capability) for the GPU., Comment: 14 pages

Published
2024

5. Optimal high-dimensional entanglement concentration in the bipartite scenario

Author

Torres, L. Palma, Solís-Prosser, M. A., Jiménez, O., Gómez, E. S., and Delgado, A.

Subjects
Quantum Physics
Abstract

Considering pure quantum states, entanglement concentration is the procedure where from $N$ copies of a partially entangled state, a single state with higher entanglement can be obtained. Getting a maximally entangled state is possible for $N=1$. However, the associated success probability can be extremely low while increasing the system's dimensionality. In this work, we study two methods to achieve a probabilistic entanglement concentration for bipartite quantum systems with a large dimensionality for $N=1$, regarding a reasonably good probability of success at the expense of having a non-maximal entanglement. Firstly, we define an efficiency function $\mathcal{Q}$ considering a tradeoff between the amount of entanglement (quantified by the I-Concurrence) of the final state after the concentration procedure and its success probability, which leads to solving a quadratic optimization problem. We found an analytical solution, ensuring that an optimal scheme for entanglement concentration can always be found in terms of $\mathcal{Q}$. Finally, a second method was explored, which is based on fixing the success probability and searching for the maximum amount of entanglement attainable. Both ways resemble the Procrustean method applied to a subset of the most significant Schmidt coefficients but obtaining non-maximally entangled states., Comment: 11 pages, 4 figures

Published
2023

6. Experimental Fatigue Behavior of NSM CFRP-Strengthened RC Beams Under High Service Temperature

Author

Jahani, Y., Baena, M., Sena-Cruz, J., Aghabagloo, M., Barris, C., Torres, L., di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Gu, Xiang-Lin, editor, Motavalli, Masoud, editor, Ilki, Alper, editor, and Yu, Qian-Qian, editor

Published
2024
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7. Experimental Study and Theoretical Analysis on the Flexural Behaviour of RC Beams Strengthened With Externally Bonded Reinforcement on Groove (EBROG) CFRP

Author

Codina, A., Barris, C., Jahani, Y., Baena, M., Torres, L., di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Gu, Xiang-Lin, editor, Motavalli, Masoud, editor, Ilki, Alper, editor, and Yu, Qian-Qian, editor

Published
2024
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8. The SCUBA-2 Cosmology Legacy Survey: The EGS deep field -- III. The evolution of faint submillimeter galaxies at $z<4$

Author

Cardona-Torres, L., Aretxaga, I., Montaña, A., Zavala, J. A., and Faber, S. M.

Subjects
Astrophysics - Astrophysics of Galaxies
Abstract

We present a demographic analysis of the physical and morphological properties of $450/850~\mu\rm m$-selected galaxies from the deep observations of the SCUBA-2 Cosmology Legacy Survey in the Extended Groth Strip that are detected below the classical submillimeter-galaxy regime ($S_{850 \mu\rm m}\lesssim 6~\rm mJy$/beam) and compare them with a sample of optically-selected star-forming galaxies detected in the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey in the same field. We derive the evolution of the main sequence of star-forming galaxies, finding a steeper specific star formation rate versus stellar mass at $z>2.5$ than previous studies. Most faint submillimeter-galaxies fall within $3\sigma$ of the main sequence, but 40~per cent are classified as starbursts. Faint submillimeter galaxies have 50~per cent larger sizes at $2

Published
2022
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10. Spanish Translation and Cultural Adaptations of Physical Therapy Parent Educational Materials for Use in Neonatal Intensive Care

Author

McCarty DB, Sierra-Arevalo L, Caldwell Ashur AC, White JT, and Villa Torres L

Subjects
patient education, spanish, translation, cultural adaptation, neonatal intensive care, parents, Medicine (General), R5-920
Abstract

Dana B McCarty,1 Leslie Sierra-Arevalo,2 Ana-Clara Caldwell Ashur,1 J Tommy White,3 Laura Villa Torres4 1Department of Health Sciences, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA; 2Physical and Occupational Therapy, Duke University Health System, Durham, NC, USA; 3North Carolina Clinical and Translational Sciences Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; 4Public Health Leadership Program, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USACorrespondence: Dana B McCarty, Department of Health Sciences, University of North Carolina at Chapel Hill School of Medicine, 3024 Bondurant Hall, CB&num;7135, Chapel Hill, NC, 27599-7135, USA, Tel +1 919 843 8792, Fax +1 919 966 3678, Email dana_mccarty@med.unc.eduBackground: A paucity of Spanish language, culturally relevant parent education materials in the healthcare setting results in suboptimal care for Latinx families and further perpetuates health disparities. The purpose of this article is to describe the process for Spanish translation and cultural adaptations to parent education materials of a parent-centered physical therapy program designed to support maternal mental health and infant development during Neonatal Intensive Care (NICU).Methods: Two bilingual physical therapy (PT) students translated educational materials from English to Spanish and were proofread by a professional translator. Next, we conducted a materials review with 5 members of the Latine Community Review Board (CRB), a “standing” advisory group of natively Spanish-speaking, Latine North Carolinians who contract with research teams under the coordination of the Inclusive Science Program (ISP) of the North Carolina Translational and Clinical Sciences Institute (NC TraCS). Review session recruitment, facilitation, and data analysis were conducted by bilingual NC TraCS project managers and the primary investigator for the main feasibility study. Readability analyses were performed at the final stage of translation and adaptation.Results: Themes from CRB review sessions for improvement included to 1) use parent-friendly language, 2) use the plural masculine form of gendered language for caregivers to include all gender identities in this neonatal context, 3) address challenges with direct translation, and 4) use written education materials to supplement in-person, hands-on training with parents and their infants. All translated materials received a grade level of 5 on the Crawford grade-level index.Conclusion: Based on CRB feedback and readability analysis, the translation and cultural-adaptation process resulted in comprehensible written parent education materials for Spanish-speaking families. Review meetings with the CRB reinforced the need for Spanish materials in the healthcare setting. Further assessment of these materials with Spanish-speaking families in the NICU setting is needed.Keywords: patient education, Spanish, translation, cultural adaptation, neonatal intensive care, parents

Published
2024

13. Predictors of anastomotic leak and conduit necrosis after oesophagectomy: Results from the oesophago-gastric anastomosis audit (OGAA)

Author

Halle-Smith, J.M., Kamarajah, S.K., Evans, R.P.T., Nepogodiev, D., Hodson, J., Bundred, J.R., Gockel, I., Gossage, J.A., Isik, A., Kauppila, J.H., Kidane, B., Mahendran, H.A., Negoi, I., Okonta, K.E., Sayyed, R., van Hillegersberg, R., Vohra, R.S., Wijnhoven, B.P.L., Singh, P., Griffiths, E.A., Alderson, D., Bundred, J., Gossage, J., Jefferies, B., McKay, S., Mohamed, I., Siaw- Acheampong, K., Vohra, R., Wanigasooriya, K., Whitehouse, T., Gjata, A., Moreno, J.I., Takeda, F.R., Guevara Castro, R., Bekele, A., Harustiak, T., Kechagias, A., Bagajevas, A., Kennedy, A., Da Roit, A., Azagra, J.S., Mejía-Fernández, L., El Kafsi, J., Sayyed, R.H., Sousa, M., Sampaio, A.S., Blanco, R., Wallner, B., Schneider, P.M., Hsu, P.K., Gananadha, S., Wills, V., Devadas, M., Duong, C., Talbot, M., Hii, M.W., Jacobs, R., Andreollo, N.A., Johnston, B., Darling, G., Isaza-Restrepo, A., Rosero, G., Arias- Amézquita, F., Raptis, D., Gaedcke, J., Reim, D., Izbicki, J., Egberts, J.H., Dikinis, S., Kjaer, D.W., Larsen, M.H., Achiam, M.P., Saarnio, J., Theodorou, D., Liakakos, T., Korkolis, D.P., Robb, W.B., Collins, C., Murphy, T., Reynolds, J., Tonini, V., Migliore, M., Bonavina, L., Valmasoni, M., Bardini, R., Weindelmayer, J., Terashima, M., White, R.E., Alghunaim, E., Elhadi, M., Leon-Takahashi, A.M., Medina-Franco, H., Lau, P.C., Heisterkamp, J., Rosman, C., Beban, G., Babor, R., Gordon, A., Rossaak, J.I., Pal, K.M.I., Qureshi, A.U., Naqi, S.A., Syed, A.A., Barbosa, J., Vicente, C.S., Leite, J., Freire, J., Casaca, R., Costa, R.C.T., Scurtu, R.R., Mogoanta, S.S., Bolca, C., Constantinoiu, S., Sekhniaidze, D., Bjelović, M., So, J.B.Y., Gačevski, G., Loureiro, C., Pera, M., Bianchi, A., Moreno Gijón, M., Martín Fernández, J., Trugeda Carrera, M.S., Vallve-Bernal, M., Cítores Pascual, M.A., Elmahi, S., Halldestam, I., Hedberg, J., Mönig, S., Gutknecht, S., Tez, M., Guner, A., Tirnaksiz, M.B., Colak, E., Sevinç, B., Hindmarsh, A., Khan, I., Khoo, D., Byrom, R., Gokhale, J., Wilkerson, P., Jain, P., Chan, D., Robertson, K., Iftikhar, S., Skipworth, R., Forshaw, M., Higgs, S., Nijjar, R., Viswanath, Y.K.S., Turner, P., Dexter, S., Boddy, A., Allum, W.H., Oglesby, S., Cheong, E., Beardsmore, D., Maynard, N., Berrisford, R., Mercer, S., Puig, S., Melhado, R., Kelty, C., Underwood, T., Dawas, K., Lewis, W., Al-Bahrani, A., Bryce, G., Thomas, M., Arndt, A.T., Palazzo, F., Meguid, R.A., Fergusson, J., Beenen, E., Mosse, C., Salim, J., Cheah, S., Wright, T., Cerdeira, M.P., McQuillan, P., Richardson, M., Liem, H., Spillane, J., Yacob, M., Albadawi, F., Thorpe, T., Dingle, A., Cabalag, C., Loi, K., Fisher, O.M., Ward, S., Read, M., Johnson, M., Bassari, R., Bui, H., Cecconello, I., Sallum, R.A.A., da Rocha, J.R.M., Lopes, L.R., Tercioti, V., Coelho, J.D.S., Ferrer, J.A.P., Buduhan, G., Tan, L., Srinathan, S., Shea, P., Yeung, J., Allison, F., Carroll, P., Vargas-Barato, F., Gonzalez, F., Ortega, J., Nino-Torres, L., Beltrán-García, T.C., Castilla, L., Pineda, M., Bastidas, A., Gómez-Mayorga, J., Cortés, N., Cetares, C., Caceres, S., Duarte, S., Pazdro, A., Snajdauf, M., Faltova, H., Sevcikova, M., Mortensen, P.B., Katballe, N., Ingemann, T., Morten, B., Kruhlikava, I., Ainswort, A.P., Stilling, N.M., Eckardt, J., Holm, J., Thorsteinsson, M., Siemsen, M., Brandt, B., Nega, B., Teferra, E., Tizazu, A., Koivukangas, V., Meriläinen, S., Gruetzmann, R., Krautz, C., Weber, G., Golcher, H., Emons, G., Azizian, A., Ebeling, M., Niebisch, S., Kreuser, N., Albanese, G., Hesse, J., Volovnik, L., Boecher, U., Reeh, M., Triantafyllou, S., Schizas, D., Michalinos, A., Balli, E., Mpoura, M., Charalabopoulos, A., Manatakis, D.K., Balalis, D., Bolger, J., Baban, C., Mastrosimone, A., McAnena, O., Quinn, A., Ó Súilleabháin, C.B., Hennessy, M.M., Ivanovski, I., Khizer, H., Ravi, N., Donlon, N., Cervellera, M., Vaccari, S., Bianchini, S., Sartarelli, l, Asti, E., Bernardi, D., Merigliano, S., Provenzano, L., Scarpa, M., Saadeh, L., Salmaso, B., De Manzoni, G., Giacopuzzi, S., La Mendola, R., De Pasqual, C.A., Tsubosa, Y., Niihara, M., Irino, T., Makuuchi, R., Ishii, K., Mwachiro, M., Fekadu, A., Odera, A., Mwachiro, E., AlShehab, D., Ahmed, H.A., Shebani, A.O., Elhadi, A., Elnagar, F.A., Elnagar, H.F., Makkai-Popa, S.T., Wong, L.F., Yr, Tan, S, Thannimalai, Ca, Ho, Ws, Pang, Jh, Tan, Hnl, Basave, Cortés-González, R., Lagarde, S.M., van Lanschot, J.J.B., Cords, C., Jansen, W.A., Martijnse, I., Matthijsen, R., Bouwense, S., Klarenbeek, B., Verstegen, M., van Workum, F., Ruurda, J.P., van der Sluis, P.C., de Maat, M., Evenett, N., Johnston, P., Patel, R., MacCormick, A., Young, M., Smith, B., Ekwunife, C., Memon, A.H., Shaikh, K., Wajid, A., Khalil, N., Haris, M., Mirza, Z.U., Qudus, S.B.A., Sarwar, M.Z., Shehzadi, A., Raza, A., Jhanzaib, M.H., Farmanali, J., Zakir, Z., Shakeel, O., Nasir, I., Khattak, S., Baig, M., Noor, M.A., Ahmed, H.H., Naeem, A., Pinho, A.C., da Silva, R., Bernardes, A., Campos, J.C., Matos, H., Braga, T., Monteiro, C., Ramos, P., Cabral, F., Gomes, M.P., Martins, P.C., Correia, A.M., Videira, J.F., Ciuce, C., Drasovean, R., Apostu, R., Paitici, S., Racu, A.E., Obleaga, C.V., Beuran, M., Stoica, B., Ciubotaru, C., Negoita, V., Cordos, I., Birla, R.D., Predescu, D., Hoara, P.A., Tomsa, R., Shneider, V., Agasiev, M., Ganjara, I., Gunjić, D., Veselinović, M., Babič, T., Chin, T.S., Shabbir, A., Kim, G., Crnjac, A., Samo, H., Díez del Val, I., Leturio, S., Ramón, J.M., Dal Cero, M., Rifá, S., Rico, M., Pagan Pomar, A., Martinez Corcoles, J.A., Rodicio Miravalles, J.L., Pais, S.A., Turienzo, S.A., Alvarez, L.S., Campos, P.V., Rendo, A.G., García, S.S., Santos, E.P.G., Martínez, E.T., Fernández Díaz, M.J., Magadán Álvarez, C., Concepción Martín, V., Díaz López, C., Rosat Rodrigo, A., Pérez Sánchez, L.E., Bailón Cuadrado, M., Tinoco Carrasco, C., Choolani Bhojwani, E., Sánchez, D.P., Ahmed, M.E., Dzhendov, T., Lindberg, F., Rutegård, M., Sundbom, M., Mickael, C., Colucci, N., Schnider, A., Er, S., Kurnaz, E., Turkyilmaz, S., Turkyilmaz, A., Yildirim, R., Baki, B.E., Akkapulu, N., Karahan, O., Damburaci, N., Hardwick, R., Safranek, P., Sujendran, V., Bennett, J., Afzal, Z., Shrotri, M., Chan, B., Exarchou, K., Gilbert, T., Amalesh, T., Mukherjee, D., Mukherjee, S., Wiggins, T.H., Kennedy, R., McCain, S., Harris, A., Dobson, G., Davies, N., Wilson, I., Mayo, D., Bennett, D., Young, R., Manby, P., Blencowe, N., Schiller, M., Byrne, B., Mitton, D., Wong, V., Elshaer, A., Cowen, M., Menon, V., Tan, L.C., McLaughlin, E., Koshy, R., Sharp, C., Brewer, H., Das, N., Cox, M., Al Khyatt, W., Worku, D., Iqbal, R., Walls, L., McGregor, R., Fullarton, G., Macdonald, A., MacKay, C., Craig, C., Dwerryhouse, S., Hornby, S., Jaunoo, S., Wadley, M., Baker, C., Saad, M., Kelly, M., Davies, A., Di Maggio, F., Mistry, P., Singhal, R., Tucker, O., Kapoulas, S., Powell-Brett, S., Davis, P., Bromley, G., Watson, L., Verma, R., Ward, J., Shetty, V., Ball, C., Pursnani, K., Sarela, A., Sue Ling, H., Mehta, S., Hayden, J., To, N., Palser, T., Hunter, D., Supramaniam, K., Butt, Z., Ahmed, A., Kumar, S., Chaudry, A., Moussa, O., Kordzadeh, A., Lorenzi, B., Wilson, M., Patil, P., Noaman, I., Willem, J., Bouras, G., Evans, R., Singh, M., Warrilow, H., Ahmad, A., Tewari, N., Yanni, F., Couch, J., Theophilidou, E., Reilly, J.J., van Boxel, Gijs, Akbari, K., Zanotti, D., Sgromo, B., Sanders, G., Wheatley, T., Ariyarathenam, A., Reece-Smith, A., Humphreys, L., Choh, C., Carter, N., Knight, B., Pucher, P., Athanasiou, A., Tan, B., Abdulrahman, M., Vickers, J., Akhtar, K., Chaparala, R., Brown, R., Alasmar, M.M.A., Ackroyd, R., Patel, K., Tamhankar, A., Wyman, A., Walker, R., Grace, B., Abbassi, N., Slim, N., Ioannidi, L., Blackshaw, G., Havard, T., Escofet, X., Powell, A., Owera, A., Rashid, F., Jambulingam, P., Padickakudi, J., Ben-Younes, H., Mccormack, K., Makey, I.A., Karush, M.K., Seder, C.W., Liptay, M.J., Chmielewski, G., Rosato, E.L., Berger, A.C., Zheng, R., Okolo, E., Singh, A., Scott, C.D., Weyant, M.J., Mitchell, J.D., and Griffiths, Ewen A.

Published
2024
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15. Quadrature protection of squeezed states in a one-dimensional photonic topological insulator

Author

Dueñas, J. Medina, Pérez, G. O'Ryan, Hermann-Avigliano, Carla, and Torres, L. E. F. Foa

Subjects
Quantum Physics, Condensed Matter - Other Condensed Matter, Physics - Optics
Abstract

What is the role of topology in the propagation of quantum light in photonic lattices? We address this question by studying the propagation of squeezed states in a topological one-dimensional waveguide array, benchmarking our results with those for a topologically trivial localized state, and studying their robustness against disorder. Specifically, we study photon statistics, one-mode and two-mode squeezing, and entanglement generation when the localized state is excited with squeezed light. These quantum properties inherit the shape of the localized state but, more interestingly, and unlike in the topologically trivial case, we find that propagation of squeezed light in a topologically protected state robustly preserves the phase of the squeezed quadrature as the system evolves. We show how this latter topological advantage can be harnessed for quantum information protocols., Comment: Main text: 11 pages and 6 figures, appendix: 3 pages and 3 figures, 1 ancillary file (mp4)

Published
2021
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16. The 2021 Quantum Materials Roadmap

Author

Giustino, Feliciano, Lee, Jin Hong, Trier, Felix, Bibes, Manuel, Winter, Stephen M, Valentí, Roser, Son, Young-Woo, Taillefer, Louis, Heil, Christoph, Figueroa, Adriana I., Plaçais, Bernard, Wu, QuanSheng, Yazyev, Oleg V., Bakkers, Erik P. A. M., Nygård, Jesper, Forn-Diaz, Pol, De Franceschi, Silvano, McIver, J. W., Torres, L. E. F. Foa, Low, Tony, Kumar, Anshuman, Galceran, Regina, Valenzuela, Sergio O., Costache, Marius V., Manchon, Aurélien, Kim, Eun-Ah, Schleder, Gabriel R, Fazzio, Adalberto, and Roche, Stephan

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science, Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity, Quantum Physics
Abstract

In recent years, the notion of Quantum Materials has emerged as a powerful unifying concept across diverse fields of science and engineering, from condensed-matter and cold atom physics to materials science and quantum computing. Beyond traditional quantum materials such as unconventional superconductors, heavy fermions, and multiferroics, the field has significantly expanded to encompass topological quantum matter, two-dimensional materials and their van der Waals heterostructures, Moire materials, Floquet time crystals, as well as materials and devices for quantum computation with Majorana fermions. In this Roadmap collection we aim to capture a snapshot of the most recent developments in the field, and to identify outstanding challenges and emerging opportunities. The format of the Roadmap, whereby experts in each discipline share their viewpoint and articulate their vision for quantum materials, reflects the dynamic and multifaceted nature of this research area, and is meant to encourage exchanges and discussions across traditional disciplinary boundaries. It is our hope that this collective vision will contribute to sparking new fascinating questions and activities at the intersection of materials science, condensed matter physics, device engineering, and quantum information, and to shaping a clearer landscape of quantum materials science as a new frontier of interdisciplinary scientific inquiry., Comment: 93 pages, 27 figures

Published
2021
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17. Connecting the formation of stars and planets. I -- Spectroscopic characterization of host stars with TIGRE

Author

Flor-Torres, L. M., Coziol, R., Schröder, K. -P., Jack, D., Schmitt, J. H. M. M., and Blanco-Cuaresma, S.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract

In search for a connection between the formation of stars and the formation of planets, a new semi-automatic spectral analysis method using \textsf{iSpec} was developed for the TIGRE telescope installed in Guanajuato, Mexico. TIGRE is a 1.2m robotic telescope, equipped with an Echelle spectrograph (HEROS), with a resolution R $\simeq 20000$. \textsf{iSpec} is a synthetic spectral fitting program for stars that allows to determine in an homogeneous way their fundamental parameters: effective temperature, $T_{\rm eff}$, surface gravity, $\log g$, metallicities, $[M/H]$ and $[Fe/H]$, and rotational velocity, $V \sin i$. In this first article we test our method by analysing the spectra of 46 stars, host of exoplanets, obtained with the TIGRE., Comment: Accepted for publication in RevMexAA

Published
2021
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18. Connecting the formation of stars and planets. II: coupling the angular momentum of stars with the angular momentum of planets

Author

Flor-Torres, L. M., Coziol, R., Schröder, K. -P., Jack, D., and Schmitt, J. H. M. M.

Subjects
Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract

A sample of 46 stars, host of exoplanets, is used to search for a connection between their formation process and the formation of the planets rotating around them. Separating our sample in two, stars hosting high-mass exoplanets (HMEs) and low-mass exoplanets (LMEs), we found the former to be more massive and to rotate faster than the latter. We also found the HMEs to have higher orbital angular momentum than the LMEs and to have lost more angular momentum through migration. These results are consistent with the view that the more massive the star and higher its rotation, the more massive was its protoplanetarys disk and rotation, and the more efficient the extraction of angular momentum from the planets., Comment: Accepted for publication in RevMexAA

Published
2021
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21. Estimation of Mass Flow Rates of Two-Phase Flow Using Convolutional Neural Networks

Author

Rocha-Mancera, M. F., Arce-Benítez, S., Torres, L., Vázquez, J. E. G., Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, and Kowalczuk, Zdzislaw, editor

Published
2023
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25. Quantum Hall edge states under periodic driving: a Floquet induced chirality switch

Author

Huamán, A., Torres, L. E. F. Foa, Balseiro, C. A., and Usaj, Gonzalo

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We report on the fate of the quantum Hall effect in graphene under strong laser illumination. By using Floquet theory combined with both a low energy description and full tight-binding models, we clarify the selection rules, the quasienergy band structure, as well as their connection with the two-terminal and multi-terminal conductance in a device setup as relevant for experiments. We show that the well-known dynamical gaps that appear in the Floquet spectrum at $\pm\,\hbar\Omega/2$ lead to a switch-off of the quantum Hall edge transport for different edge terminations except for the armchair one, where two terms cancel out exactly. More interestingly, we show that near the Dirac point changing the laser polarization (circular right or circular left) controls the Hall conductance, by allowing to switch it on or off, or even by flipping its sign, thereby reversing the chirality of the edge states. This might lead to new avenues to fully control topologically protected transport., Comment: 19 pages, 19 figures

Published
2020
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26. Spin-polarized tunable photocurrents

Author

Berdakin, Matías, Rodríguez-Mena, Esteban A., and Torres, L. E. F. Foa

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Harnessing the unique features of topological materials for the development of a new generation of topological based devices is a challenge of paramount importance. Using Floquet scattering theory combined with atomistic models we study the interplay between laser illumination, spin and topology in a two-dimensional material with spin-orbit coupling. Starting from a topological phase, we show how laser illumination can selectively disrupt the topological edge states depending on their spin. This is manifested by the generation of pure spin currents and spin-polarized charge photocurrents under linearly and circularly polarized laser-illumination, respectively. Our results open a path for the generation and control of spin-polarized photocurrents., Comment: 7 pages, 4 figures

Published
2020
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27. Visualization of radiotracers for SPECT imaging using a Timepix detector with a coded aperture

Author

Rozhkov, V., Chelkov, G., Hernández, I., Ivanov, O., Kozhevniko, D., Leyva, A., Perera, A., Rastorguev, D., Smolyanskiy, P., Torres, L., and Zhemchugov, A.

Subjects
Physics - Medical Physics, Physics - Instrumentation and Detectors
Abstract

The work shows the ability to visualize radiotracers used in SPECT with a system based on a coded aperture mask and a hybrid pixel Timepix detector with the CdTe sensor. Characterization of the system using X-rays and radioactive sources confirms that the spatial resolution of less than 1 mm with a field of view 3 cm x 3 cm can be achieved. The results of a simulation study to determine the expected spatial resolution of the system in the focal plane for the various radionuclides is presented. The possibility of using this system with a thin (1.5 mm) coded aperture mask for reconstructing images of gamma emitters with the energy up to 180 keV is demonstrated.

Published
2020
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29. Hopelessness in Patients with Early-Stage Relapsing-Remitting Multiple Sclerosis

Author

Sainz de la Maza S, Maurino J, Castillo-Triviño T, Borges M, Sebastián Torres B, Sotoca J, Alonso Torres AM, Caminero AB, Borrega L, Sánchez-Menoyo JL, Barrero-Hernández FJ, Calles C, Brieva L, Blasco MR, Dotor García-Soto J, Rodríguez-Regal A, Navarro-Cantó L, Agüera-Morales E, Garcés M, Carmona O, Gabaldón-Torres L, Forero L, Hervás M, and Gómez-Ballesteros R

Subjects
relapsing-remitting multiple sclerosis, hopelessness, depressive symptoms, workplace difficulties, suicide, Medicine (General), R5-920
Abstract

Susana Sainz de la Maza,1 Jorge Maurino,2 Tamara Castillo-Triviño,3 Mónica Borges,4 Berta Sebastián Torres,5 Javier Sotoca,6 Ana María Alonso Torres,7 Ana B Caminero,8 Laura Borrega,9 José L Sánchez-Menoyo,10 Francisco J Barrero-Hernández,11 Carmen Calles,12 Luis Brieva,13 María Rosario Blasco,14 Julio Dotor García-Soto,4 Ana Rodríguez-Regal,15 Laura Navarro-Cantó,16 Eduardo Agüera-Morales,17 Moisés Garcés,18 Olga Carmona,19 Laura Gabaldón-Torres,20 Lucía Forero,21 Mariona Hervás,22 Rocío Gómez-Ballesteros2 1Department of Neurology, Hospital Universitario Ramón y Cajal, Madrid, Spain; 2Medical Department, Roche Farma, Madrid, Spain; 3Department of Neurology, Hospital Universitario Donostia, San Sebastián, Spain; 4Department of Neurology, Hospital Universitario Virgen Macarena, Sevilla, Spain; 5Department of Neurology, Hospital Universitario Miguel Servet, Zaragoza, Spain; 6Department of Neurology, Hospital Universitari Vall d´Hebrón, Barcelona, Spain; 7Department of Neurology, Hospital Regional Universitario de Málaga, Málaga, Spain; 8Department of Neurology, Complejo Asistencial de Ávila, Ávila, Spain; 9Department of Neurology, Hospital Universitario Fundación Alcorcón, Alcorcón, Spain; 10Department of Neurology, Hospital de Galdakao-Usansolo, Galdakao, Spain; 11Department of Neurology, Hospital Universitario Clínico San Cecilio, Granada, Spain; 12Department of Neurology, Hospital Universitari Son Espases, Palma de Mallorca, Spain; 13Department of Neurology, Hospital Universitari Arnau de Vilanova, Lleida, Spain; 14Department of Neurology, Hospital Universitario Puerta de Hierro, Madrid, Spain; 15Department of Neurology, Complexo Hospitalario Universitario de Pontevedra, Pontevedra, Spain; 16Department of Neurology, Hospital General Universitario de Elche, Elche, Spain; 17Department of Neurology, Hospital Universitario Reina Sofía, Córdoba, Spain; 18Department of Neurology, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain; 19Department of Neurology, Fundació Salut Empordà, Figueres, Spain; 20Department of Neurology, Hospital Francesc de Borja, Gandía, Spain; 21Department of Neurology, Hospital Universitario Puerta del Mar, Cádiz, Spain; 22Department of Neurology, Consorci Corporació Sanitària Parc Taulí, Sabadell, SpainCorrespondence: Jorge Maurino, Medical Department, Roche Farma, Ribera del Loira, 50, Madrid, 28042, Spain, Tel +34 913 24 81 00, Email jorge.maurino@roche.comBackground: Hopelessness is a risk factor for depression and suicide. There is little information on this phenomenon among patients with relapsing-remitting multiple sclerosis (RRMS), one of the most common causes of disability and loss of autonomy in young adults. The aim of this study was to assess state hopelessness and its associated factors in early-stage RRMS.Methods: A multicenter, non-interventional study was conducted. Adult patients with a diagnosis of RRMS, a disease duration ≤ 3 years, and an Expanded Disability Status Scale (EDSS) score of 0– 5.5 were included. The State-Trait Hopelessness Scale (STHS) was used to measure patients´ hopelessness. A battery of patient-reported and clinician-rated measurements was used to assess clinical status. A multivariate logistic regression analysis was conducted to determine the association between patients’ characteristics and state hopelessness.Results: A total of 189 patients were included. Mean age (standard deviation-SD) was 36.1 (9.4) years and 71.4% were female. Median disease duration (interquartile range-IQR) was 1.4 (0.7, 2.1) years. Symptom severity and disability were low with a median EDSS (IQR) score of 1.0 (0, 2.0). A proportion of 65.6% (n=124) of patients reported moderate-to-severe hopelessness. Hopelessness was associated with older age (p=0.035), depressive symptoms (p=< 0.001), a threatening illness perception (p=0.001), and psychological and cognitive barriers to workplace performance (p=0.029) in the multivariate analysis after adjustment for confounders.Conclusion: Hopelessness was a common phenomenon in early-stage RRMS, even in a population with low physical disability. Identifying factors associated with hopelessness may be critical for implementing preventive strategies helping patients to adapt to the new situation and cope with the disease in the long term.Keywords: relapsing-remitting multiple sclerosis, hopelessness, depressive symptoms, workplace difficulties, suicide

Published
2023

31. Planet Hunters TESS I: TOI 813, a subgiant hosting a transiting Saturn-sized planet on an 84-day orbit

Author

Eisner, N. L., Barragán, O., Aigrain, S., Lintott, C., Miller, G., Zicher, N., Boyajian, T. S., Briceño, C., Bryant, E. M., Christiansen, J. L., Feinstein, A. D., Flor-Torres, L. M., Fridlund, M., Gandolfi, D., Gilbert, J., Guerrero, N., Jenkins, J. M., Jones, K., Kristiansen, M. H., Vanderburg, A., Law, N., López-Sánchez, A. R., Mann, A. W., Safron, E. J., Schwamb, M. E., Stassun, K. G., Osborn, H. P., Wang, J., Zic, A., Ziegler, C., Barnet, F., Bean, S. J., Bundy, D. M., Chetnik, Z., Dawson, J. L., Garstone, J., Stenner, A. G., Huten, M., Larish, S., Melanson, L. D., Mitchell, T., Moore, C., Peltsch, K., Rogers, D. J., Schuster, C., Smith, D. S., Simister, D. J., Tanner, C., Terentev, I., and Tsymbal, A.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

We report on the discovery and validation of TOI 813b (TIC 55525572 b), a transiting exoplanet identified by citizen scientists in data from NASA's Transiting Exoplanet Survey Satellite (TESS) and the first planet discovered by the Planet Hunters TESS project. The host star is a bright (V = 10.3 mag) subgiant ($R_\star=1.94\,R_\odot$, $M_\star=1.32\,M_\odot$). It was observed almost continuously by TESS during its first year of operations, during which time four individual transit events were detected. The candidate passed all the standard light curve-based vetting checks, and ground-based follow-up spectroscopy and speckle imaging enabled us to place an upper limit of $2 M_{Jup}$ (99 % confidence) on the mass of the companion, and to statistically validate its planetary nature. Detailed modelling of the transits yields a period of $83.8911_{ - 0.0031 } ^ { + 0.0027 }$ days, a planet radius of $6.71 \pm 0.38$ $R_{\oplus}$, and a semi major axis of $0.423_{ - 0.037 } ^ { + 0.031 }$ AU. The planet's orbital period combined with the evolved nature of the host star places this object in a relatively under-explored region of parameter space. We estimate that TOI-813b induces a reflex motion in its host star with a semi-amplitude of $\sim6$ ms$^{-1}$, making this system a promising target to measure the mass of a relatively long-period transiting planet., Comment: Accepted for publication in MNRAS (16 pages, 10 figures, 3 tables)

Published
2019
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32. Topological Signatures in Quantum Transport in Anomalous Floquet-Anderson Insulators

Author

Rodriguez-Mena, Esteban A. and Torres, L. E. F. Foa

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Topological states require the presence of extended bulk states, as usually found in the picture of energy bands and topological states bridging the bulk gaps. But in driven systems this can be circumvented, and one can get topological states coexisting with fully localized bulk states, as in the case of the anomalous Floquet-Anderson insulator. Here, we show the fingerprints of this peculiar topological phase in the transport properties and their dependence on the disorder strength, geometrical configuration (two-terminal and multiterminal setups) and details of the driving protocol., Comment: 7 pages, 5 figures

Published
2019
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34. Direito do Consumidor no Cenário Ibero-Americano

Author

Alberto Manuel Poletti Adorno, Alejandro Platero Alcón, Andrés Mariño López, Ángel Acedo Penco, Angélica Carlini, Belén Ferrer Tapia, Carlos Alfredo Hernández, Cristina Gil Membrado, Dennis Verbicaro, Erika Isler Soto, Felipe Comarela Milanez, Irene de Seiça Girão, Jesús Daniel Ayllón García, José Ángel Torres L

Published
2023

37. Directional control of charge and valley currents in a graphene-based device

Author

Berdakin, M., Vargas, J. E. Barrios, and Torres, L. E. F. Foa

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We propose a directional switching effect in a metallic device. To such end we exploit a graphene-based device with a three-terminal geometry in the presence of a magnetic field. We show that unidirectional charge and valley currents can be controlled by the Fermi energy and the magnetic field direction in the active device. Interestingly, unidirectional transport of charge and valley is generated between two-terminals at the same bias voltage. Furthermore, we quantify the valley depolarization as a function of disorder concentration. Our results open a way for active graphene-based valleytronics devices.

Published
2018

38. Topological states of non-Hermitian systems

Author

Alvarez, V. M. Martinez, Vargas, J. E. Barrios, Berdakin, M., and Torres, L. E. F. Foa

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics
Abstract

Recently, the search for topological states of matter has turned to non-Hermitian systems, which exhibit a rich variety of unique properties without Hermitian counterparts. Lattices modeled through non-Hermitian Hamiltonians appear in the context of photonic systems, where one needs to account for gain and loss, circuits of resonators, and also when modeling the lifetime due to interactions in condensed matter systems. Here we provide a brief overview of this rapidly growing subject, the search for topological states and a bulk-boundary correspondence in non-Hermitian systems., Comment: Invited short review for the special issue "Topological States of Matter: Theory and Applications"

Published
2018
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39. Spatio-temporal dynamics of shift current quantum pumping by femtosecond light pulse

Author

Bajpai, U., Popescu, B. S., Plechac, P., Nikolic, B. K., Torres, L. E. F. Foa, Ishizuka, H., and Nagaosa, N.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Quantum Physics
Abstract

Shift current---a photocurrent induced by light irradiating noncentrosymmetric materials in the absence of any bias voltage or built-in electric field---is one of the mechanisms of the so-called bulk photovoltaic effect. It has been traditionally described as a nonlinear optical response of periodic solids to continuous wave light using a perturbative formula, which is linear in the intensity of light and which involves Berry connection describing the shift in the center of mass position of the Wannier wave function associated with the transition between the valence and conduction bands. We analyze realistic two-terminal devices, where paradigmatic Rice-Mele model is sandwiched between two metallic electrodes, using recently developed time-dependent nonequilibrium Green function algorithms scaling linearly in the number of time steps and capable of treating nonperturbative effects in the amplitude of external time-dependent fields. This unveils novel features: superballistic transport, signified by time dependence of the displacement, $\sim t^\nu$ with $\nu > 1$, of the photoexcited charge carriers from the region where the femtosecond light pulse is applied toward the electrodes; and photocurrent quadratic in light intensity at subgap frequencies of light due to two-photon absorption processes that were missed in previous perturbative analyses. Furthermore, frequency dependence of the DC component of the photocurrent reveals shift currents as a realization of nonadiabatic quantum charge pumping enabled by breaking of left-right symmetry of the device structure. This demonstrates that a much wider class of systems, than the usually considered polar noncentrosymmetric bulk materials, can be exploited to generate nonzero DC component of photocurrent in response to unpolarized light and optimize shift-current-based solar cells and optoelectronic devices., Comment: 8 pages, 6 figures, PDFLaTeX; two additional movies, depicting spatial profiles of local shift current in clean and disordered systems during application of fs light pulse, are available from https://wiki.physics.udel.edu/qttg/Publications

Published
2018
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41. Risk Factors for Urologic Complications After Kidney Transplantation and Impact in Graft Survival

Author

Nino-Torres L, Garcia-Lopez A, Patino-Jaramillo N, Giron-Luque F, and Nino-Murcia A

Subjects
major urologic complications, kidney transplantation, graft survival, patient survival, Diseases of the genitourinary system. Urology, RC870-923
Abstract

Laura Nino-Torres,1 Andrea Garcia-Lopez,2 Nasly Patino-Jaramillo,2 Fernando Giron-Luque,1 Alejandro Nino-Murcia1 1Department of Transplantation Surgery, Colombiana de Trasplantes, Bogotá, Colombia; 2Department of Transplantation Research, Colombiana de Trasplantes, Bogotá, ColombiaCorrespondence: Alejandro Nino-Murcia, Transplant Surgeon, Colombiana de Trasplantes, Av Carrera, 30 No. 47 A-74, Bogota, 111311, Colombia, Tel +57 3112499999, Email anino@colombianadetrasplantes.comBackground and Purpose: Kidney transplantation (KT) is the best therapy for chronic kidney disease (CKD). Major urologic complications (MUCs) are the second etiology associated to morbidity and graft loss following KT, after rejection episodes. The objective of this study was to estimate the incidence, risk factors and impact on graft survival associated to urological complications in KT patients.Patients and Methods: A retrospective cohort based on electronic patient files of kidney transplant recipients from Colombiana de Trasplantes was created for the period August 2008 to September 2019. Initiation of follow-up was defined as the date of transplantation up to 3 years post-transplantation. Incidence of ureteral stenosis, ureteral obstruction, and ureteral leak was measured. A logistic regression multivariate model was adjusted to determine the associated factors to MUCs (yes/no). Patient and graft survival time were analyzed using a Kaplan-Meier method.Results: A total of 1584 KT patients were included in the cohort. MUCs were present in 195 (12.6%) KT patients. We found that dialysis duration (OR: 1.004; p = 0.02) remained significant for the incidence of MUCs in KT patients of deceased donors. Probability of graft and patient survival at 3 years of follow-up was 90.5% and 85.5%, respectively. No significant difference was found on graft and patient survival in KT patients with or without MUCs.Conclusion: MUCs are frequent complications for KT. We did not observe significant differences in graft or patient survival according to the presence of MUCs. The identification of MUCs and risk factors may guide transplant teams for future surgical and clinical decisions.Keywords: major urologic complications, kidney transplantation, graft survival, patient survival

Published
2022

42. The influence of anastomotic techniques on postoperative anastomotic complications: Results of the Oesophago-Gastric Anastomosis Audit

Author

Kamarajah, S.K., Evans, R.P.T., Nepogodiev, D., Hodson, J., Bundred, J.R., Gockel, I., Gossage, J.A., Isik, A., Kidane, B., Mahendran, H.A., Negoi, I., Okonta, K.E., Sayyed, R., van Hillegersberg, R., Vohra, R.S., Wijnhoven, B.P.L., Singh, P., Griffiths, E.A., Alderson, D., Bundred, J., Gossage, J., Jefferies, B., McKay, S., Mohamed, I., Siaw-Acheampong, K., Vohra, R., Wanigasooriya, K., Whitehouse, T., Gjata, A., Moreno, J.I., Takeda, F.R., Guevara Castro, R., Harustiak, T., Bekele, A., Kechagias, A., Kennedy, A., Da Roit, A., Bagajevas, A., Azagra, J.S., Mejía-Fernández, L., El Kafsi, J., Sayyed, R.H., Sousa, M., Sampaio, A.S., Blanco, R., Wallner, B., Schneider, P.M., Hsu, P.K., Gananadha, S., Wills, V., Devadas, M., Duong, C., Talbot, M., Hii, M.W., Jacobs, R., Andreollo, N.A., Johnston, B., Darling, G., Isaza-Restrepo, A., Rosero, G., Arias-Amézquita, F., Raptis, D., Gaedcke, J., Reim, D., Izbicki, J., Egberts, J.H., Dikinis, S., Kjaer, D.W., Larsen, M.H., Achiam, M.P., Saarnio, J., Theodorou, D., Liakakos, T., Korkolis, D.P., Robb, W.B., Collins, C., Murphy, T., Reynolds, J., Tonini, V., Migliore, M., Bonavina, L., Valmasoni, M., Bardini, R., Weindelmayer, J., Terashima, M., White, R.E., Alghunaim, E., Elhadi, M., Leon-Takahashi, A.M., Medina-Franco, H., Lau, P.C., Heisterkamp, J., Rosman, C., Beban, G., Babor, R., Gordon, A., Rossaak, J.I., Pal, K.M.I., Qureshi, A.U., Naqi, S.A., Syed, A.A., Barbosa, J., Vicente, C.S., Leite, J., Freire, J., Casaca, R., Costa, R.C.T., Scurtu, R.R., Mogoanta, S.S., Bolca, C., Constantinoiu, S., Sekhniaidze, D., Bjelović, M., So, J.B.Y., Gačevski, G., Loureiro, C., Pera, M., Bianchi, A., Moreno Gijón, M., Martín Fernández, J., Trugeda Carrera, M.S., Vallve-Bernal, M., Cítores Pascual, M.A., Elmahi, S., Halldestam, I., Hedberg, J., Mönig, S., Gutknecht, S., Tez, M., Guner, A., Tirnaksiz, M.B., Colak, E., Sevinç, B., Hindmarsh, A., Khan, I., Khoo, D., Byrom, R., Gokhale, J., Wilkerson, P., Jain, P., Chan, D., Robertson, K., Iftikhar, S., Skipworth, R., Forshaw, M., Higgs, S., Nijjar, R., Viswanath, Y.K.S., Turner, P., Dexter, S., Boddy, A., Allum, W.H., Oglesby, S., Cheong, E., Beardsmore, D., Maynard, N., Berrisford, R., Mercer, S., Puig, S., Melhado, R., Kelty, C., Underwood, T., Dawas, K., Lewis, W., Al-Bahrani, A., Bryce, G., Thomas, M., Arndt, A.T., Palazzo, F., Meguid, R.A., Fergusson, J., Beenen, E., Mosse, C., Salim, J., Cheah, S., Wright, T., Cerdeira, M.P., McQuillan, P., Richardson, M., Liem, H., Spillane, J., Yacob, M., Albadawi, F., Thorpe, T., Dingle, A., Cabalag, C., Loi, K., Fisher, O.M., Ward, S., Read, M., Johnson, M., Bassari, R., Bui, H., Cecconello, I., Sallum, R.A.A., da Rocha, J.R.M., Lopes, L.R., Tercioti, V., Jr, Coelho, J.D.S., Ferrer, J.A.P., Buduhan, G., Tan, L., Srinathan, S., Shea, P., Yeung, J., Allison, F., Carroll, P., Vargas-Barato, F., Gonzalez, F., Ortega, J., Nino-Torres, L., Beltrán-García, T.C., Castilla, L., Pineda, M., Bastidas, A., Gómez-Mayorga, J., Cortés, N., Cetares, C., Caceres, S., Duarte, S., Pazdro, A., Snajdauf, M., Faltova, H., Sevcikova, M., Mortensen, P.B., Katballe, N., Ingemann, T., Morten, B., Kruhlikava, I., Ainswort, A.P., Stilling, N.M., Eckardt, J., Holm, J., Thorsteinsson, M., Siemsen, M., Brandt, B., Nega, B., Teferra, E., Tizazu, A., Kauppila, J.H., Koivukangas, V., Meriläinen, S., Gruetzmann, R., Krautz, C., Weber, G., Golcher, H., Emons, G., Azizian, A., Ebeling, M., Niebisch, S., Kreuser, N., Albanese, G., Hesse, J., Volovnik, L., Boecher, U., Reeh, M., Triantafyllou, S., Schizas, D., Michalinos, A., Balli, E., Mpoura, M., Charalabopoulos, A., Manatakis, D.K., Balalis, D., Bolger, J., Baban, C., Mastrosimone, A., McAnena, O., Quinn, A., Ó Súilleabháin, C.B., Hennessy, M.M., Ivanovski, I., Khizer, H., Ravi, N., Donlon, N., Cervellera, M., Vaccari, S., Bianchini, S., Sartarelli, l., Asti, E., Bernardi, D., Merigliano, S., Provenzano, L., Scarpa, M., Saadeh, L., Salmaso, B., De Manzoni, G., Giacopuzzi, S., La Mendola, R., De Pasqual, C.A., Tsubosa, Y., Niihara, M., Irino, T., Makuuchi, R., Ishii, K., Mwachiro, M., Fekadu, A., Odera, A., Mwachiro, E., AlShehab, D., Ahmed, H.A., Shebani, A.O., Elhadi, A., Elnagar, F.A., Elnagar, H.F., Makkai-Popa, S.T., Wong, L.F., Tan, Y.R., Thannimalai, S., Ho, C.A., Pang, W.S., Tan, J.H., Basave, H.N.L., Cortés-González, R., Lagarde, S.M., van Lanschot, J.J.B., Cords, C., Jansen, W.A., Martijnse, I., Matthijsen, R., Bouwense, S., Klarenbeek, B., Verstegen, M., van Workum, F., Ruurda, J.P., van der Sluis, P.C., de Maat, M., Evenett, N., Johnston, P., Patel, R., MacCormick, A., Young, M., Smith, B., Ekwunife, C., Memon, A.H., Shaikh, K., Wajid, A., Khalil, N., Haris, M., Mirza, Z.U., Qudus, S.B.A., Sarwar, M.Z., Shehzadi, A., Raza, A., Jhanzaib, M.H., Farmanali, J., Zakir, Z., Shakeel, O., Nasir, I., Khattak, S., Baig, M., MA, Noor, Ahmed, H.H., Naeem, A., Pinho, A.C., da Silva, R., Bernardes, A., Campos, J.C., Matos, H., Braga, T., Monteiro, C., Ramos, P., Cabral, F., Gomes, M.P., Martins, P.C., Correia, A.M., Videira, J.F., Ciuce, C., Drasovean, R., Apostu, R., Paitici, S., Racu, A.E., Obleaga, C.V., Beuran, M., Stoica, B., Ciubotaru, C., Negoita, V., Cordos, I., Birla, R.D., Predescu, D., Hoara, P.A., Tomsa, R., Shneider, V., Agasiev, M., Ganjara, I., Gunjić, D., Veselinović, M., Babič, T., Chin, T.S., Shabbir, A., Kim, G., Crnjac, A., Samo, H., Díez del Val, I., Leturio, S., Ramón, J.M., Dal Cero, M., Rifá, S., Rico, M., Pagan Pomar, A., Martinez Corcoles, J.A., Rodicio Miravalles, J.L., Pais, S.A., Turienzo, S.A., Alvarez, L.S., Campos, P.V., Rendo, A.G., García, S.S., Santos, E.P.G., Martínez, E.T., Fernández Díaz, M.J., Magadán Álvarez, C., Concepción Martín, V., Díaz López, C., Rosat Rodrigo, A., Pérez Sánchez, L.E., Bailón Cuadrado, M., Tinoco Carrasco, C., Choolani Bhojwani, E., Sánchez, D.P., Ahmed, M.E., Dzhendov, T., Lindberg, F., Rutegård, M., Sundbom, M., Mickael, C., Colucci, N., Schnider, A., Er, S., Kurnaz, E., Turkyilmaz, S., Turkyilmaz, A., Yildirim, R., Baki, B.E., Akkapulu, N., Karahan, O., Damburaci, N., Hardwick, R., Safranek, P., Sujendran, V., Bennett, J., Afzal, Z., Shrotri, M., Chan, B., Exarchou, K., Gilbert, T., Amalesh, T., Mukherjee, D., Mukherjee, S., Wiggins, T.H., Kennedy, R., McCain, S., Harris, A., Dobson, G., Davies, N., Wilson, I., Mayo, D., Bennett, D., Young, R., Manby, P., Blencowe, N., Schiller, M., Byrne, B., Mitton, D., Wong, V., Elshaer, A., Cowen, M., Menon, V., Tan, L.C., McLaughlin, E., Koshy, R., Sharp, C., Brewer, H., Das, N., Cox, M., Al Khyatt, W., Worku, D., Iqbal, R., Walls, L., McGregor, R., Fullarton, G., Macdonald, A., MacKay, C., Craig, C., Dwerryhouse, S., Hornby, S., Jaunoo, S., Wadley, M., Baker, C., Saad, M., Kelly, M., Davies, A., Di Maggio, F., Mistry, P., Singhal, R., Tucker, O., Kapoulas, S., Powell-Brett, S., Davis, P., Bromley, G., Watson, L., Verma, R., Ward, J., Shetty, V., Ball, C., Pursnani, K., Sarela, A., Sue Ling, H., Mehta, S., Hayden, J., To, N., Palser, T., Hunter, D., Supramaniam, K., Butt, Z., Ahmed, A., Kumar, S., Chaudry, A., Moussa, O., Kordzadeh, A., Lorenzi, B., Wilson, M., Patil, P., Noaman, I., Willem, J., Bouras, G., Evans, R., Singh, M., Warrilow, H., Ahmad, A., Tewari, N., Yanni, F., Couch, J., Theophilidou, E., Reilly, J.J., van Boxel Gijs, Akbari, K., Zanotti, D., Sgromo, B., Sanders, G., Wheatley, T., Ariyarathenam, A., Reece-Smith, A., Humphreys, L., Choh, C., Carter, N., Knight, B., Pucher, P., Athanasiou, A., Tan, B., Abdulrahman, M., Vickers, J., Akhtar, K., Chaparala, R., Brown, R., Alasmar, M.M.A., Ackroyd, R., Patel, K., Tamhankar, A., Wyman, A., Walker, R., Grace, B., Abbassi, N., Slim, N., Ioannidi, L., Blackshaw, G., Havard, T., Escofet, X., Powell, A., Owera, A., Rashid, F., Jambulingam, P., Padickakudi, J., Ben-Younes, H., Mccormack, K., Makey, I.A., Karush, M.K., Seder, C.W., Liptay, M.J., Chmielewski, G., Rosato, E.L., Berger, A.C., Zheng, R., Okolo, E., Singh, A., Scott, C.D., Weyant, M.J., and Mitchell, J.D.

Published
2022
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43. The second Mexican consensus on hepatocellular carcinoma. Part II: Treatment

Author

Cisneros-Garza, L.E., González-Huezo, M.S., Moctezuma-Velázquez, C., Ladrón de Guevara-Cetina, L., Vilatobá, M., García-Juárez, I., Alvarado-Reyes, R., Álvarez-Treviño, G.A., Allende-Pérez, S., Bornstein-Quevedo, L., Calderillo-Ruiz, G., Carrillo-Martínez, M.A., Castillo-Barradas, M., Cerda-Reyes, E., Félix-Leyva, J.A., Gabutti-Thomas, J.A., Guerrero-Ixtlahuac, J., Higuera-de la Tijera, F., Huitzil-Melendez, D., Kimura-Hayama, E., López-Hernández, P.A., Malé-Velázquez, R., Méndez-Sánchez, N., Morales-Ruiz, M.A., Ruíz-García, E., Sánchez-Ávila, J.F., and Torrecillas-Torres, L.

Published
2022
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44. II Consenso mexicano de carcinoma hepatocelular. Parte II: tratamiento

Author

Cisneros-Garza, L.E., González-Huezo, M.S., Moctezuma-Velázquez, C., Ladrón de Guevara-Cetina, L., Vilatobá, M., García-Juárez, I., Alvarado-Reyes, R., Álvarez-Treviño, G.A., Allende-Pérez, S., Bornstein-Quevedo, L., Calderillo-Ruiz, G., Carrillo-Martínez, M.A., Castillo-Barradas, M., Cerda-Reyes, E., Félix-Leyva, J.A., Gabutti-Thomas, J.A., Guerrero-Ixtlahuac, J., Higuera-de la Tijera, F., Huitzil-Melendez, D., Kimura-Hayama, E., López-Hernández, P.A., Malé-Velázquez, R., Méndez-Sánchez, N., Morales-Ruiz, M.A., Ruíz-García, E., Sánchez-Ávila, J.F., and Torrecillas-Torres, L.

Published
2022
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46. The second Mexican consensus on hepatocellular carcinoma. Part I: Epidemiology and diagnosis

Author

Cisneros-Garza, L.E., González-Huezo, M.S., Moctezuma-Velázquez, C., Ladrón de Guevara-Cetina, L., Vilatobá, M., García-Juárez, I., Alvarado-Reyes, R., Álvarez-Treviño, G.A., Allende-Pérez, S., Bornstein-Quevedo, L., Calderillo-Ruiz, G., Carrillo-Martínez, M.A., Castillo-Barradas, M., Cerda-Reyes, E., Félix-Leyva, J.A., Gabutti-Thomas, J.A., Guerrero-Ixtlahuac, J., Higuera-de-la-Tijera, F., Huitzil-Meléndez, D., Kimura-Hayama, E., López-Hernández, P.A., Malé-Velázquez, R., Méndez-Sánchez, N., Morales-Ruiz, M.A., Ruíz-García, E., Sánchez-Ávila, J.F., and Torrecillas-Torres, L.

Published
2022
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47. II Consenso Mexicano de Carcinoma Hepatocelular. Parte I: Epidemiología y diagnóstico

Author

Cisneros-Garza, L.E., González-Huezo, M.S., Moctezuma-Velázquez, C., Ladrón de Guevara-Cetina, L., Vilatobá, M., García-Juárez, I., Alvarado-Reyes, R., Álvarez-Treviño, G.A., Allende-Pérez, S., Bornstein-Quevedo, L., Calderillo-Ruiz, G., Carrillo-Martínez, M.A., Castillo-Barradas, M., Cerda-Reyes, E., Félix-Leyva, J.A., Gabutti-Thomas, J.A., Guerrero-Ixtlahuac, J., Higuera-de-la-Tijera, F., Huitzil-Meléndez, D., Kimura-Hayama, E., López-Hernández, P.A., Malé-Velázquez, R., Méndez-Sánchez, N., Morales-Ruiz, M.A., Ruíz-García, E., Sánchez-Ávila, J.F., and Torrecillas-Torres, L.

Published
2022
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48. Non-Hermitian robust edge states in one-dimension: Anomalous localization and eigenspace condensation at exceptional points

Author

Alvarez, V. M. Martinez, Vargas, J. E. Barrios, and Torres, L. E. F. Foa

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Capital to topological insulators, the bulk-boundary correspondence ties a topological invariant computed from the bulk (extended) states with those at the boundary, which are hence robust to disorder. Here we put forward an ordering unique to non-Hermitian lattices, whereby a pristine system becomes devoid of extended states, a property which turns out to be robust to disorder. This is enabled by a peculiar type of non-Hermitian degeneracy where a macroscopic fraction of the states coalesce at a single point with geometrical multiplicity of $1$, that we call a phenomenal point., Comment: 6 pages, 4 figures

Published
2017
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49. Global conservation genomics of blue whales calls into question subspecies taxonomy and refines knowledge of population structure.

Author

Attard, C. R. M., Sandoval‐Castillo, J., Lang, A. R., Vernazzani, B. G., Torres, L. G., Baldwin, R., Jenner, K. C. S., Gill, P. C., Burton, C. L. K., Barceló, A., Sironi, M., Jenner, M.‐N. M., Morrice, M. G., Beheregaray, L. B., and Möller, L. M.

Subjects
BLUE whale, NATURAL selection, BALEEN whales, GENETIC variation, SPECIES diversity
Abstract

Blue whales (Balaenoptera musculus) are the largest living animal and, like other baleen whales, became endangered due to whaling. Here, we used population genomics to infer the number, distribution and other characteristics of subspecies and populations. We used the largest DNA dataset in blue whales, both in terms of genomic markers (16,661 SNPs and mtDNA) and geographic coverage (n = 276 for SNPs; n = 531 for mtDNA). We found greatest divergence among the eastern Pacific, Indo‐western Pacific and Antarctic blue whales. There were indications that natural selection in different environments promoted divergence among these groupings. Within these regions, there was divergence between the eastern North and eastern South Pacific, and among the eastern Indian Ocean, the western South Pacific and the northern Indian Ocean. There was no divergence within the Antarctic. These findings are consistent with the current classification of Antarctic and Indo‐western Pacific blue whales in the Southern Hemisphere as different subspecies but call into question the subspecies taxonomy of eastern Pacific blue whales. The study shows that opposite breeding seasons on either side of the equator do not necessarily inhibit connectivity across the equator, and reinforces that population structure needs to be well understood to conserve the diversity within species. [ABSTRACT FROM AUTHOR]

Published
2024
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