• Random Electric Field Instabilities of Relaxor Ferroelectrics 

      Guzmán Verri, Gian Giacomo; Arce Gamboa, José Rafael (2017-06-13)
      Relaxor ferroelectrics are complex oxide materials which are rather unique to study the effects of compositional disorder on phase transitions. Here, we study the effects of quenched cubic random electric fields on the ...
    • Relation between Luminescence and Electronic Surface Characteristics in p-type Porous Silicon 

      Weisz, S. Z.; Ramírez Porras, Arturo; Gómez, Manuel; Many, A.; Goldstein, Yehuda; Savir, Esther (1997)
      Measurements of photoluminescence, electronic surface states and effective surface area, at various stages of the anodization process, are presented. The results show a behavior different from that observed on n-type porous Si.
    • Renormalización mejorada y multipolos armónicos 

      Solís Rodríguez, José Daniel (2023)
      En este trabajo se proporciona una prueba de la estructura multipolar de los propagadores cinemáticos no regularizados de intensidades de campo de espín superior. Siguiendo el patrón identificado por primera vez en el ...
    • Revealing a new region of gamma-ray emission in the vicinity of HESS J1825–137 

      Araya Arguedas, Miguel; Mitchell, Alison M. W.; Parsons, R. Daniel (2019-02-17)
      HESS J1825–137 is a bright very high-energy gamma-ray source that has been firmly established as a pulsar wind nebula (PWN), and one of the most extended gamma-ray objects within this category. The progenitor supernova ...
    • Search for gamma-ray emission from star-forming galaxies with Fermi LAT 

      Rojas Bravo, César; Araya Arguedas, Miguel (2016-08)
      Recent studies have found a positive correlation between the star-formation rate of galaxies and their gamma-ray luminosity. Galaxies with a high star-formation rate are expected to produce a large amount of high-energy ...
    • Sesión "Medicina nuclear" 

      Estrada Lobato, Enrique; Alonso Farto, Juan Carlos; De Haro Del Moral, Francisco Javier; Cerci, Juliano Julio; Rodríguez Pérez, J. L.; Vázquez Peña, E.; Godinho, F.; Mora Ramírez, Erick; Tinoco Mezquita, F.; Mut Bastos, F.; Savio Quevedo, Eduardo; Penedo Ojea, M. ; Ramírez Quijada, R. (2017-01)
      En la sesión dedicada a la Medicina Nuclear (MN) se identificaron los cinco aspectos que se consideran más problemáticos en la protección radiológica en MN. Estos hacen referencia a: 1. Garantizar que la dosis administrada ...
    • Short term topological changes of coronal holes associated with prominence eruptions and subsequent CMEs 

      Gutiérrez Garro, Heidy; Taliashvili Enacolopas, Lela; Mouradian, Zadig (2013-03-15)
      We study the short-term topological changes of equatorial and polar coronal hole (CH) boundaries, such as a variation of their area and disintegration, associated to reconnection with nearby (within 15° distance) quiescent ...
    • Stochastic approach to the smart quantum confinement model in porous silicon 

      Ramírez Porras, Arturo; Weisz, S. Z. (Surface Science 515 (2002) L509-L513, 2002)
      A model that encompasses two approaches to explain the photoluminescence in p-type porous silicon is proposed. The model considers a stochastic distribution of nanocrystallite sizes within the porous matrix and explain the ...
    • Structure factor of a relaxor ferroelectric 

      Guzmán Verri, Gian Giacomo; Varma, Chandra M. (2015-04-14)
      We study a minimal model for a relaxor ferroelectric including dipolar interactions, and short-range harmonic and anharmonic forces for the critical modes as in the theory of pure ferroelectrics together with quenched ...
    • Study of oxide bands in p-type porous silicon layers 

      Rojas Fernández, Yoselin; Hernández López, María José; Ramírez Porras, Arturo (2019)
      The interest in developing fast and reliable chemical and biochemical sensors in an inexpensive way is something that has attracted a lot of efforts in the last decades. One of the potential material candidates is ...
    • The 2:3:6 quasi-periodic oscillation structure in GRS 1915+105 and cubic subharmonics in the context of relativistic discoseismology 

      Ortega Rodríguez, Manuel; Solís Sánchez, Hugo; López Barquero, Vanessa; Matamoros Alvarado, Bryan; Venegas Li, Ariadna (Monthly Notices of the Royal Astronomical Society 440:3011-3015, 2014-06-01)
      We propose a simple toy model to explain the 2:3:6 quasi-periodic oscillation (QPO) structure in GRS 1915+105 and, more generally, the 2:3 QPO structure in XTE J1550−564, GRO J1655−40 and H1743−322. The model exploits the ...
    • The early rainy season in Central America: the role of thetropical North Atlantic SSTs 

      Maldonado Mora, Tito José; Alfaro Martínez, Eric J.; Rutgersson, Anna; Amador Astúa, Jorge Alberto (2016)
      We explored the relationship between the precipitation anomalies during May to June as the first peak of the rainy season in the Pacific slope of Central America, and sea surface temperature (SST) fluctuations in the ...
    • The gigaelectronvolt counterpart of ver j2019+407 in the northern shell of the supernova remnant g78.2+2.1 (γ cygni) 

      Fraija Cabrera, Nissim Illich; Araya Arguedas, Miguel (2016-07)
      Analysis of gamma-ray emission from the supernova remnant G78.2+2.1 (γ Cygni) with 7.2 years of cumulative data from the Fermi Large Area Telescope shows a distinct hard, bright, and extended component to the north of the ...
    • The High-Altitude water cherenkov (HAWC) observatory in México: The primary detector 

      Abeysekara, Anushka Udara; Albert, Andrea; Alfaro Molina, José Rubén; Álvarez, César LLorens; Álvarez Romero, Juan de Dios; Araya Arguedas, Miguel; Arteaga Velázquez, Juan Carlos; Arun Babu, Kollamparambil Paul; Ávila Rojas, Daniel Omar; Ayala Solares, Hugo Alberto; Babu, Rishi; Barber, Ahron S.; Becerril, Ana Delia; Belmont Moreno, Ernesto; BenZvi, Segev Y.; Blanco Alonso, Oscar; Braun, James R.; Brisbois, Chad; Caballero Mora, Karen Salomé; Cabrera Martínez, Jesús I.; Capistrán Rojas, Tomás; Carramiñana, Alberto; Casanova, Sabrina; Castillo, Mario A.; Chaparro Amaro, Oscar Roberto; Cotti Gollini, Umberto; Cotzomi, Jorge; Coutiño de León, Sara; De La Fuente Acosta, Eduardo; De León Acuña, Cederik León; DeYoung, Tyce; Díaz Hernández, Raquel; Dingus, Brenda L.; DuVernois, Michael A.; Durocher, Mora; Díaz Vélez, Juan Carlos; Ellsworth, Robert W.; Engel, Kristi L.; Espinoza Hernández, María Catalina; Fan, Kwok Lung; Fang, Ke; Fick, Brian E.; Fleischhack, Henrike; Flores, Jorge Luis; Fraija Cabrera, Nissim Illich; García González, José Andrés; García Torales, Guillermo; Garfias, Fernando; Giacinti, Gwenael; Goksu, Hazal; González, María Magdalena; González Muñoz, Adiv; Goodman, Jordán Alvin; Harding, J. Patrick; Hernández, Emma González; Hernández, Sergio; Hinton, James A.; Hona, Binita; Huang, Dezhi; Hueyotl Zahuantitla, Filiberto; Hui, Chiumun Michelle; Humensky, Thomas Brian; Hüntemeyer, Petra; Iriarte, Arturo; Imran, Asif; Jardin Blicq, Armelle; Joshi, Vikas; Kaufmann, Sarah; Kieda, David B.; Kunde, Gerd J.; Lara Sánchez, Alejandro; Lauer, Robert J.; Lee, William H.; Lennarz, Dirk; León Vargas, Hermes; Linnemann, James T.; Longinotti, Anna Lía; Luis Raya, Gilgamesh; Lundeen, Joseph; Malone, Kelly; Marandon, Vincent; Marinelli, Antonio; Martínez Bravo, Oscar Mario; Martínez Castellanos, Israel; Martínez Castro, Jesús Alberto; Martínez Huerta, Humberto; Matthews, John A.; Miranda Romagnoli, Pedro; Montaruli, Teresa; Morales Soto, Jorge Antonio; Moreno Barbosa, Eduardo; Mostafá, Miguel Alejandro; Nayerhoda, Amid; Nellen, Lukas; Newbold, Michael; Nisa, Mehr Un; Noriega Papaqui, Roberto; Oceguera Becerra, Tomas O.; Olivera Nieto, Laura; Omodei, Nicola; Peisker, Alison; Pérez Araujo, Yunior Frainen; Pérez Pérez, Eucario Gonzalo; Ponce, Lancho Epifanio; Pretz, John; Rho, Chang Dong; Rosa González, Daniel; Ruiz Velasco, Edna Loredana; Salazar Ibarguen, Humberto; Salazar Gallegos, Daniel; Salesa Greus, Francisco; Sandoval, Andrés; Schneider, Michael; Schoorlemmer, Harm; Serna Franco, José E.; Sinnis, Gus; Smith, Andrew James; Son, Youngwan; Sparks Woodle, Kathryne; Springer, Robert Wayne; Taboada, Ignacio J.; Tepe, Andreas; Tibolla, Omar; Tollefson, Kirsten Anne; Torres Aguilar, Ibrahim Daniel; Torres Escobedo, Ramiro; Turner, Rhiannon; Ureña Mena, Fernando Josué; Ukwatta, Tilan N.; Varela, Enrique; Vargas Magaña, Mariana; Villaseñor Cendejas, Luis Manuel; Wang, Xiaojie; Watson, Ian James; Werner, Felix; Westerhoff, Stefan; Willox, Elijah Job; Wisher, Ian G.; Wood, Joshua; Yodh, Gaurang B.; Zaborov, Dmitry N.; Zepeda, Arnulfo; Zhou, Hao (2023-07)
      The High-Altitude Water Cherenkov (HAWC) observatory is a second-generation continuously operated, wide field-of-view, TeV gamma-ray observatory. The HAWC observatory and its analysis techniques build on experience of the ...
    • The Hubble Constant and the Deceleration Parameter in Anisotropic Cosmological Spaces of Petrov type D 

      Alvarado Marín, Rodrigo Eduardo (2016-11)
      In this paper the Hubble parameter and the deceleration parameter are analyzed for a group of anisotropic homogeneous solutions of the Petrov type-D. It is obtained that for the said set of solutions can be constructed a ...
    • The Josephson junction as a quantum engine 

      Alicki, Robert; Horodecki, Michal; Jenkins Villalobos, Alejandro; Lobejko, Marcin; Suárez, Gerardo (2023-11-10)
      We treat the Cooper pairs in the superconducting electrodes of a Josephson junction (JJ) as an open system, coupled via Andreev scattering to external baths of electrons. The disequilibrium between the baths generates the ...
    • The mechanical career of Councillor Orffyreus, confidence man 

      Jenkins Villalobos, Alejandro (2013-05)
      In the early 18th century, J. E. E. Bessler, known as Orffyreus, constructed several wheels that he claimed could keep turning forever, powered only by gravity. He never revealed the details of his invention, but he ...
    • The problem of engines in statistical physics 

      Alicki, Robert; Gelbwaser Klimovsky, David; Jenkins Villalobos, Alejandro (2021-08-22)
      Engines are open systems that can generate work cyclically at the expense of an external disequilibrium. They are ubiquitous in nature and technology, but the course of mathematical physics over the last 300 years has ...