Guillermo Canseco, Miguel de Icaza, Francisco J. Fernández, Achim M. Loske,
Extracorporeal shock wave lithotripsy (SWL) is a reliable therapy for the treatment of urolithiasis. Nevertheless, improvements to enhance stone fragmentation and reduce tissue damage are still needed. During SWL, cavitation is one of the most important stone fragmentation mechanisms. Bubbles with a diameter between about 7 and 55 μm have been reported to expand and collapse after shock wave passage, forming liquid microjets at velocities of up to 400 m/s that contribute to the pulverization of renal ...
Tópico(s): Combustion and Detonation Processes
2011 - Elsevier BV | Ultrasonics
Ana Laura Martínez‐Hernández, Carlos Velasco‐Santos, Miguel de Icaza, V. M. Castaño,
Poly(methyl methacrylate) composites reinforced with natural protein biofibers from chicken feathers were prepared and evaluated through a series of tensile tests. Afterward, the samples were analyzed by optical and scanning electron microscopy studies, to obtain a clear picture of the tensile-induced damages. The hydrophobic nature of keratin fiber produces an excellent compatibility between fibers and PMMA matrix. This fact is reflected in the good dispersion of protein fibers achieved without ...
Tópico(s): Silk-based biomaterials and applications
2005 - Elsevier BV | Polymer
Ana Laura Martínez‐Hernández, Carlos Velasco‐Santos, Miguel de Icaza, V. M. Castaño,
Natural fibres have recently attracted scientists' attention because of their advantages from the environmental standpoint. However, almost all the research has been directed towards cellulose from vegetal sources without taking into account other potentially interesting compounds like keratin, which can be found in feathers, wool, nail or hair. In spite of its strength, low density and biodegradability, keratin has been studied only from the medical and textile point of view, whereas others aspects ...
Tópico(s): Textile materials and evaluations
2005 - Inderscience Publishers | International Journal of Environment and Pollution
Karina Bustos-Ramírez, Ana Laura Martínez‐Hernández, Gonzalo Martínez‐Barrera, Miguel de Icaza, V. M. Castaño, Carlos Velasco‐Santos,
Carbon nanostructures have played an important role in creating a new field of materials based on carbon. Chemical modification of carbon nanostructures through grafting has been a successful step to improve dispersion and compatibility in solvents, with biomolecules and polymers to form nanocomposites. In this sense carbohydrates such as chitosan are extremely valuable because their functional groups play an important role in diversifying the applications of carbon nanomaterials. This paper reports ...
Tópico(s): Supercapacitor Materials and Fabrication
2013 - Multidisciplinary Digital Publishing Institute | Materials
R. Palomino‐Merino, O. Portillo Moreno, L. A. Chaltel-Lima, R. Gutiérrez Pérez, Miguel de Icaza, V. M. Castaño,
Nanocrystalline PbS thin films were prepared by Chemical Bath Deposition (CBD) at 40 ± 2°C onto glass substrates and their structural and optical properties modified by in‐situ doping with Hg. The morphological changes of the layers were analyzed using SEM and the X‐rays spectra showing growth on the zinc blende (ZB) face. The grain size determined by using X‐rays spectra for undoped samples was found to be ~ 36 nm, whereas with the doped sample was 32–20 nm. Optical absorption spectra were used to calculate ...
Tópico(s): Copper-based nanomaterials and applications
2013 - Hindawi Publishing Corporation | Journal of Nanomaterials
Karina Bustos-Ramírez, Carlos Barrera-Díaz, Miguel de Icaza, Ana Laura Martínez‐Hernández, Reyna Natividad, Carlos Velasco‐Santos,
Graphite and graphene oxides have been studied amply in the last decade, due to their diverse properties and possible applications. Recently, their functionality as photocatalytic materials in water splitting was reported. Research in these materials is increasing due to their band gap values around 1.8-4 eV, and therefore, these are comparable with other photocatalysts currently used in heterogeneous photocatalytic processes. Thus, this research reports the photocatalytic effectiveness of graphite ...
Tópico(s): Nanomaterials for catalytic reactions
2015 - Springer International Publishing | Journal of Environmental Health Science and Engineering
Karina Bustos-Ramírez, Carlos Barrera-Díaz, Miguel de Icaza, Ana Laura Martínez‐Hernández, Carlos Velasco‐Santos,
Developing new materials or modifying the existing ones is an amply field studied in the world of research. Due to its outstanding physical and chemical properties, graphene is attractive material for new applications. The methodologies for obtaining graphene are diverse and have changed over time. Graphene oxide is a versatile form of graphene, due to the presence of oxygenated functional groups. Chemical oxidation of graphite and exfoliation by ultrasonic waves is one of the preferred methods ...
Tópico(s): Advanced Photocatalysis Techniques
2015 - Hindawi Publishing Corporation | Journal of Chemistry
Vicente Amaya-Amaya, Miguel de Icaza, Ana Laura Martínez‐Hernández, Gonzalo Martínez‐Barrera, Carlos Velasco‐Santos,
In this research, auxetic composites of polylactic acid (PLA) reinforced by keratin materials (barbs and rachis), were developed through 3D printing manufacture to induce diverse acoustic properties. To evaluate the coefficient of sound absorption, an electro-acoustic experiment was implemented. The capacity of sound absorption for the composites was superior to conventional (honeycomb) and auxetic PLA geometries without reinforcement. Reduction of the free space in cavities (achieved by keratin materials) ...
Tópico(s): Natural Fiber Reinforced Composites
2020 - Elsevier BV | Materials Letters
Ana Laura Martínez‐Hernández, Carlos Velasco‐Santos, Miguel de Icaza, V. M. Castaño,
Abstract Keratin fibers from chicken feathers were modified through graft copolymerization with methyl methacrylate in an aqueous medium, using a KMnO 4 / malic acid redox system. Original and grafted fibers were characterized by IR and Raman spectroscopy and their thermal behavior was studied by both differential scanning calorimetry and thermogravimetric analysis. The grafted fiber surface was characterized by scanning electron microscopy. The characterization results show that grafting was effectively ...
Tópico(s): Bee Products Chemical Analysis
2003 - De Gruyter | e-Polymers
Miguel de Icaza, A. Jiménez-Ceniceros, V. M. Castaño,
The statistical distribution of bubbles in a 2D foam has been determined according to their area. A 2D foam chamber was designed and constructed, which allows long-term video recordings to be made. The bubbles corresponding to the last six frames, when the so-called scaling state is attained, were digitized at equally spaced time intervals, to measure their surface and count their number of neighbors. From the numerical results the empirical distribution functions are determined. Kolmogorov’s compatibility ...
Tópico(s): Hydrocarbon exploration and reservoir analysis
1994 - American Institute of Physics | Journal of Applied Physics
Witold Brostow, V. M. Castaño, A. Huanosta, Miguel de Icaza, María Elena Nicho, José M. Sániger,
Poly(acrylic acid) + zinc diacetate hybrid composites have been prepared by precipitation from aqueous solutions and drying. The lowest glass transition temperature Tg determined by differential scanning calorimetry (DSC) is 392°C, providing a service temperature range unusually large for polymer-based materials (PBMs). Thermogravimetric analysis (TGA) shows that thermal decomposition begins some 10–20 K above each Tg. The alternating current impedance was determined in the nitrogen atmosphere from 370° ...
Tópico(s): Synthesis and properties of polymers
1999 - Taylor & Francis | Materials Research Innovations
Miguel de Icaza, Francisco J. Fernández, Achim M. Loske,
Extracorporeal shock wave lithotripsy is a common non-invasive treatment for urinary stones whose fragmentation is achieved mainly by acoustic cavitation and mechanical stress. A few years ago, in vitro and in vivo experimentation demonstrated that such fragmentation can be improved, without increasing tissue damage, by sending a second shock wave hundreds of microseconds after the previous wave. Later, numerical simulations revealed that if the second pulse had a longer full width at half maximum ...
Tópico(s): Combustion and Detonation Processes
2014 - Elsevier BV | Ultrasonics
Elda Montes-Zarazúa, Arturo Colín-Cruz, María de la Luz Pérez-Rea, Miguel de Icaza, Carlos Velasco‐Santos, Ana Laura Martínez‐Hernández,
Chicken feathers are composed mainly of avian keratin, a fibrillar protein with a complex structure, and important properties such as durability, hydrophobicity, being chemically unreactive, and depending on the specific function can change its morphological and inner structure. This study takes advantage of these features and for the first time the use of keratin from chicken feathers to modify characteristics on expansive soils is reported. Swelling characteristics of remolded expansive soil specimens ...
Tópico(s): Biocrusts and Microbial Ecology
2015 - Hindawi Publishing Corporation | Advances in Materials Science and Engineering
Alejandro Castañeda, Miguel de Icaza, V. M. Castaño,
The temperature readings for all the 365 days and the 24 hours may be fitted through a 3 × 3 matrix (the so-called T-matrix). The mean square deviation between this fit and the actual meteorological measurements is smaller than three degrees Celsius. Four entries of this (nonsymmetric) matrix may be fixed by other means, leaving only five independent components. However, the same method applied to the humidity measurements produces a larger mean square deviation. A strong stochastical connection is ...
Tópico(s): Solar Radiation and Photovoltaics
2019 - Hindawi Publishing Corporation | Advances in Meteorology
Ana Laura Martínez‐Hernández, Carlos Velasco‐Santos, Miguel de Icaza, V. M. Castaño,
Journal Article Hierarchical Microstructure in Keratin Biofibers Get access AL Martínez-Hernández, AL Martínez-Hernández Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, A.P. 1-1010, Santiago de Querétaro, Querétaro 76000, MÉXICO;, castano@fata.unam.mx.Universidad Autónoma de Querétaro, Centro Cerro de las Campanas, Santiago de Querétaro, Querétaro 76010, MÉXICO Search for other works by this author on: Oxford Academic Google Scholar C Velasco-Santos, C Velasco- ...
Tópico(s): Skin and Cellular Biology Research
2003 - Oxford University Press | Microscopy and Microanalysis
B. Armas, F. Sibieude, A. Mazel, R. Fourmeaux, Miguel de Icaza,
Mullite coatings (3Al2O3–2SiO2) were obtained in a cold wall reactor using aluminium trichloride, silicon tetrachloride and nitrous oxide as precursors with nitrogen and hydrogen as carrier gases. The experimental preparation conditions were studied for fixed flow rates of N2O, H2 and N2, substrate temperature T=1200°C, total chamber gas pressure P=20 hPa, as a function of the AlCl3 to SiCl4 input ratio. The chemical composition, crystal structure and morphology of the coatings were determined by ...
Tópico(s): Advanced materials and composites
2001 - Elsevier BV | Surface and Coatings Technology
Bela Abolfathi, David S. Aguado, Gabriela Aguilar, Carlos Allende Prieto, Andrés Almeida, Tonima Tasnim Ananna, F. Anders, Scott F. Anderson, Brett H. Andrews, Borja Anguiano, Alfonso Aragón‐Salamanca, M. Argudo–Fernández, E. Armengaud, M. Ata, É. Aubourg, V. Ávila-Reese, Carles Badenes, S. Bailey, Christophe Balland, Kat Barger, J. K. Barrera-Ballesteros, Curtis Bartosz, Fabienne A. Bastien, Dominic Bates, Falk Baumgarten, Julian Bautista, Rachael L. Beaton, Timothy C. Beers, Francesco Belfiore, Chad F. Bender, Mariangela Bernardi, Matthew A. Bershady, Florian Beutler, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael R. Blanton, Michael Blomqvist, A. Bolton, M. Boquien, J. Borissova, Jo Bovy, Christian Andres Bradna Diaz, William Nielsen Brandt, J. Brinkmann, Joel R. Brownstein, Kevin Bundy, Adam J. Burgasser, E. Burtin, Nicolás G. Busca, Caleb I. Cañas, M. Cano-Díaz, Michele Cappellari, R. Carrera, Andrew R. Casey, Bernardo Cervantes Sodi, Yanping Chen, Brian Cherinka, C. Chiappini, Peter Doohyun Choi, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Nicolas Clerc, Roger E. Cohen, Julia M. Comerford, Johan Comparat, Janaina Correa do Nascimento, L. N. da Costa, Marie-Claude Cousinou, Kevin R. Covey, Jeffrey D. Crane, I. Cruz-González, Kátia Cunha, Gabriele S Ilha, G. Damke, Jeremy Darling, James W. Davidson, Kyle Dawson, Miguel Icaza-Lizaola, Axel de la Macorra, Sylvain de la Torre, Nathan De Lee, Victoria de Sainte Agathe, Alice Deconto Machado, F. Dell’Agli, Timothée Delubac, Aleksandar M. Diamond‐Stanic, John Donor, Juan José Downes, Niv Drory, Hélion du Mas des Bourboux, Christopher Duckworth, T. Dwelly, Jamie Dyer, Garrett Ebelke, Arthur Eigenbrot, Daniel J. Eisenstein, Y. Elsworth, Éric Emsellem, Michael Eracleous, G. Erfanianfar, S. Escoffier, Xiaohui Fan, Emma Fernández-Alvar, José G. Fernández-Trincado, Rafael Fernando Cirolini, Diane Feuillet, A. Finoguenov, Scott W. Fleming, Andreu Font-Ribera, Gordon Freischlad, Peter M. Frinchaboy, Hai Fu, Y. Gómez Maqueo Chew, L. Galbany, A. E. García Pérez, Rafael Garcia‐Dias, D. A. García–Hernández, Luis Alberto Garma Oehmichen, P. Gaulme, Joseph Gelfand, Héctor Gil-Marín, Bruce Gillespie, Daniel Goddard, J. I. Gónzalez Hernández, Violeta González-Pérez, Kathleen Grabowski, Paul Green, C. J. Grier, A. Guéguen, Hong Guo, Julien Guy, Alex Hagen, Patrick B. Hall, Paul Harding, Sten Hasselquist, Suzanne L. Hawley, Christian R. Hayes, Fred Hearty, S. Hekker, Jesús Hernández, Hector Hernández Toledo, David W. Hogg, Kelly Holley‐Bockelmann, Jon A. Holtzman, Jiamin Hou, Bau-Ching Hsieh, John Douglas Hunt, Timothy A. Hutchinson, Ho Seong Hwang, Camilo Eduardo Jimenez Angel, Jennifer A. Johnson, Amy Jones, Henrik Jönsson, Eric Jullo, Fahim Sakil Khan, Karen Kinemuchi, D. Kirkby, C. C. Kirkpatrick, Francisco-Shu Kitaura, G. R. Knapp, Jean‐Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, David R. Law, Jean-Marc Le Goff, Young-Bae Lee, Hongyu Li, Cheng Li, Jianhui Lian, Liang Yu, M. Lima, Lihwai Lin, Dan Long, S. Lucatello, Britt Lundgren, J. Ted Mackereth, Chelsea L. MacLeod, Suvrath Mahadevan, M. A. G. Maia, Steven R. Majewski, A. Manchado, Claudia Maraston, Vivek Mariappan, R. Marques-Chaves, T. Masseron, Karen L. Masters, Richard M. McDermid, Ian D. McGreer, Matthew Melendez, S. Meneses-Goytia, A. Merloni, M. R. Merrifield, Szabolcs Mészáros, Andrés Meza, Ivan Minchev, D. Minniti, Eva-Maria Mueller, F. Müller–Sánchez, Demitri Muna, Ricardo R. Muñoz, Adam D. Myers, Preethi Nair, K. Nandra, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, P. Noterdaeme, Julia O’Connell, Ryan J. Oelkers, Audrey Oravetz, Daniel Oravetz, E. Aquino-Ortíz, Y. Osorio, Zachary J. Pace, Nelson Padilla, N. Palanque‐Delabrouille, P. A. Palicio, Hsi-An Pan, Kaike Pan, Taniya Parikh, Isabelle Pâris, Changbom Park, Sébastien Peirani, Marcos Pellejero-Ibáñez, Samantha J. Penny, Will J. Percival, I. Pérez-Fournón, Patrick Petitjean, Matthew M. Pieri, Marc H. Pinsonneault, Alice Pisani, Francisco Prada, Abhishek Prakash, A. B. A. Queiroz, M. Jordan Raddick, Anand Raichoor, Sandro B Rembold, Hannah Richstein, Rogemar A. Riffel, Rogério Riffel, Hans‐Walter Rix, A. C. Robin, Sergio Rodríguez Torres, C. Román-Zúñiga, Ashley J. Ross, Graziano Rossi, John J. Ruan, Rossana Ruggeri, José Enrique Ruiz, M. Salvato, Ariel G. Sánchez, S. F. Sánchez, J. Sánchez Alméida, José Sánchez-Gallego, Felipe Antonio Santana Rojas, B. X. Santiago, Ricardo P. Schiavon, J. S. Schimoia, Edward F. Schlafly, David J. Schlegel, Donald P. Schneider, W. J. Schuster, Axel Schwope, Hee‐Jong Seo, Aldo Serenelli, Shiyin Shen, Yue Shen, Matthew Shetrone, J. Michael Shull, V. Silva Aguirre, Joshua D. Simon, Mike Skrutskie, Anže Slosar, Anže Slosar, Verne V. Smith, Jennifer Sobeck, Garrett Somers, Barbara J. Souter, Diogo Souto, Ashley Spindler, David V. Stark, Keivan G. Stassun, Matthias Steinmetz, Dennis Stello, Thaisa Storchi‐Bergmann, A. Streblyanska, Guy S. Stringfellow, Genaro Suárez, Jing Sun, László Szigeti,
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in operation since 2014 July. This paper describes the second data release from this phase, and the 14th from SDSS overall (making this Data Release Fourteen or DR14). This release makes the data taken by SDSS-IV in its first two years of operation (2014–2016 July) public. Like all previous SDSS releases, DR14 is cumulative, including the most recent reductions and calibrations of all data taken by SDSS since the first phase began ...
Institute of Physics
Ángel Gutiérrez-Prieto, Miguel de Icaza, Achim M. Loske, Eduardo Castaño‐Tostado,
The purpose of this work was to develop a metamodel (Kriging model) to identify the most important input parameters of shock wave pressure profiles as used in biomedical applications without solving a large number of differential equations. Shock wave-induced cavitation is involved in several biological effects. During bubble collapse, secondary shock waves and microjets are formed. For some applications, it is desirable to enhance this phenomenon by applying a second shock wave before bubble collapse; ...
Tópico(s): Ultrasound and Hyperthermia Applications
2018 - Elsevier BV | Ultrasonics
Jesús Alejandro Torres, C. Torres-Torres, Eduardo Vidal, Francisco J. Fernández, Miguel de Icaza, Achim M. Loske,
One of the main objectives of violin acoustics is a detailed analysis of the vibration state of the instrument, the source of its sound. The goal of this work was to extend a straightforward technique, naked-eye and non-destructive, to detect details of violin vibrations: laser streak patterns. Essentially, the experimental set-up only requires harmonically driving a violin in resonance, illuminating its surface with a handheld laser, and focusing on the speckle plane. The streak patterns obtained ...
Tópico(s): Hearing Loss and Rehabilitation
2021 - Elsevier BV | Applied Acoustics
C. Renero, Fernando Prieto, Miguel de Icaza,
A comparison between two of the so-called universal equations of state for solids is made. It is shown that although the Vinet equation and the Prieto-Renero equation are obtained on very different bases, their general form is very similar. Furthermore, the coefficients of the temperature dependent terms in the two equations are identical. This leads to a new relationship between the isothermal bulk modulus and other measurable parameters of the material. Numerical results obtained using both equations ...
Tópico(s): nanoparticles nucleation surface interactions
1990 - IOP Publishing | Journal of Physics Condensed Matter
Jesús Alejandro Torres, Miguel de Icaza, V. M. Castaño,
Tópico(s): Diverse Musicological Studies
2014 - S. Hirzel Verlag | Acta acustica united with Acustica
Michael R. Blanton, Matthew A. Bershady, Bela Abolfathi, Franco D. Albareti, Carlos Allende Prieto, Andrés Almeida, J. Alonso-García, F. Anders, Scott F. Anderson, Brett H. Andrews, E. Aquino-Ortíz, Alfonso Aragón‐Salamanca, M. Argudo–Fernández, E. Armengaud, É. Aubourg, V. Ávila-Reese, Carles Badenes, S. Bailey, Kat Barger, J. K. Barrera-Ballesteros, Curtis Bartosz, Dominic Bates, Falk Baumgarten, Julian Bautista, Rachael L. Beaton, Timothy C. Beers, Francesco Belfiore, Chad F. Bender, Andreas A. Berlind, Mariangela Bernardi, Florian Beutler, Jonathan C. Bird, Dmitry Bizyaev, Guillermo A. Blanc, Michael Blomqvist, A. Bolton, M. Boquien, J. Borissova, Remco C. E. van den Bosch, Jo Bovy, W. N. Brandt, J. Brinkmann, Joel R. Brownstein, Kevin Bundy, Adam J. Burgasser, E. Burtin, Nicolás G. Busca, Michele Cappellari, Maria Leticia Delgado Carigi, Joleen K. Carlberg, A. Carnero Rosell, R. Carrera, N. J. Chanover, Brian Cherinka, Edmond Cheung, Y. Gómez Maqueo Chew, C. Chiappini, Peter Doohyun Choi, Drew Chojnowski, Chia-Hsun Chuang, Haeun Chung, Rafael Fernando Cirolini, Nicolas Clerc, Roger E. Cohen, Johan Comparat, L. N. da Costa, Marie-Claude Cousinou, Kevin R. Covey, Jeffrey D. Crane, Rupert A. C. Croft, I. Cruz-González, Daniel Garrido Cuadra, Kátia Cunha, G. Damke, Jeremy Darling, Roger L. Davies, Kyle Dawson, Axel de la Macorra, F. Dell’Agli, Nathan De Lee, Timothée Delubac, F. Di Mille, Aleks Diamond-Stanic, M. Cano-Díaz, John Donor, Juan José Downes, Niv Drory, Hélion du Mas des Bourboux, Christopher Duckworth, T. Dwelly, Jamie Dyer, Garrett Ebelke, Arthur Eigenbrot, Daniel J. Eisenstein, Éric Emsellem, Mike Eracleous, S. Escoffier, Michael L. Evans, Xiaohui Fan, Emma Fernández-Alvar, José G. Fernández-Trincado, Diane Feuillet, A. Finoguenov, Scott W. Fleming, Andreu Font-Ribera, Alexander Fredrickson, Gordon Freischlad, Peter M. Frinchaboy, C. Fuentes, L. Galbany, Rafael Garcia‐Dias, D. A. García–Hernández, P. Gaulme, D. Geisler, Joseph Gelfand, Héctor Gil-Marín, Bruce Gillespie, Daniel Goddard, Violeta González-Pérez, Kathleen Grabowski, Paul Green, C. J. Grier, James E. Gunn, Hong Guo, Julien Guy, Alex Hagen, ChangHoon Hahn, Matthew Hall, Paul Harding, Sten Hasselquist, Suzanne L. Hawley, Fred Hearty, J. I. Gónzalez Hernández, Shirley Ho, David W. Hogg, Kelly Holley‐Bockelmann, Jon A. Holtzman, Parker H. Holzer, Joseph Huehnerhoff, Timothy A. Hutchinson, Ho Seong Hwang, Héctor J. Ibarra-Medel, Gabriele S Ilha, Inese I. Ivans, Keshawn Ivory, Kelly Jackson, Trey W. Jensen, Jennifer A. Johnson, Amy Jones, Henrik Jönsson, Eric Jullo, Vikrant Kamble, Karen Kinemuchi, D. Kirkby, Francisco-Shu Kitaura, Mark A. Klaene, G. R. Knapp, Jean‐Paul Kneib, Juna A. Kollmeier, Ivan Lacerna, Richard R. Lane, Dustin Lang, David R. Law, Daniel Lazarz, Youngbae Lee, Jean-Marc Le Goff, Fu-Heng Liang, Cheng Li, Hongyu Li, Jianhui Lian, M. Lima, Lihwai Lin, Yen‐Ting Lin, S. Bertrán de Lis, Chao Liu, Miguel Icaza-Lizaola, Dan Long, S. Lucatello, Britt Lundgren, Nicholas K. MacDonald, Alice Deconto Machado, Chelsea L. MacLeod, Suvrath Mahadevan, M. A. G. Maia, R. Maiolino, Steven R. Majewski, Elena Malanushenko, Viktor Malanushenko, A. Manchado, Shude Mao, Claudia Maraston, R. Marques-Chaves, T. Masseron, Karen L. Masters, Cameron K. McBride, Richard M. McDermid, Brianne McGrath, Ian D. McGreer, Nicolás Medina Peña, Matthew Melendez, A. Merloni, M. R. Merrifield, Szabolcs Mészáros, Andrés Meza, Ivan Minchev, D. Minniti, T. Miyaji, Surhud More, John S. Mulchaey, F. Müller–Sánchez, Demitri Muna, Ricardo R. Muñoz, Adam D. Myers, Preethi Nair, K. Nandra, Janaina Correa do Nascimento, C. A. Negrete, Melissa Ness, Jeffrey A. Newman, Robert C. Nichol, David L. Nidever, Christian Nitschelm, Pierros Ntelis, Julia O’Connell, Ryan J. Oelkers, Audrey Oravetz, Daniel Oravetz, Zachary J. Pace, Nelson Padilla, N. Palanque‐Delabrouille, P. A. Palicio, Kaike Pan, John K. Parejko, Taniya Parikh, Isabelle Pâris, Changbom Park, Alim Y. Patten, Sébastien Peirani, Marcos Pellejero-Ibáñez, Samantha J. Penny, Will J. Percival, I. Pérez-Fournón, Patrick Petitjean, Matthew M. Pieri, Marc H. Pinsonneault, Alice Pisani, R. Poleski, Francisco Prada, Abhishek Prakash, A. B. A. Queiroz, M. Jordan Raddick, Anand Raichoor, Sandro B Rembold, Hannah Richstein, Rogemar A. Riffel, Rogério Riffel, Hans‐Walter Rix, A. C. Robin, Constance M. Rockosi, Sergio Rodríguez-Torres, A. Román-Lópes, C. Román-Zúñiga, M. Rosado, Ashley J. Ross, Graziano Rossi, John J. Ruan, Rossana Ruggeri, E. S. Rykoff, Salvador Salazar-Albornoz, M. Salvato, Ariel G. Sánchez, David S. Aguado, José Sánchez-Gallego, Felipe A. Santana, B. X. Santiago, Conor Sayres, Ricardo P. Schiavon, J. S. Schimoia, Edward F. Schlafly, David J. Schlegel, Donald P. Schneider, M. Schultheis, W. J. Schuster, A. Schwope, Hee‐Jong Seo, Zhengyi Shao, Shiyin Shen, Matthew Shetrone, J. Michael Shull, Joshua D. Simon, Danielle Skinner, M. F. Skrutskie, Anže Slosar, Verne V. Smith, Jennifer Sobeck, F. Sobreira,
Abstract We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median <?CDATA $z\sim 0.03$?> ). The extended ...
Institute of Physics
Miguel de Icaza, C. Renero, Fernando Prieto,
Abstract A gas gun for impact studies is described. The main parameters are 75.4 mm inside diameter and 13 m length. The 20-1 diaphragm breech is designed for a 40 MPa working pressure. The impact chamber is a cylinder, 62 cm in diameter and 51.5 cm in height, with a window to obtain photographic records. A 3 m 3 recuperation tank, pressure sealed to recover the helium, encloses the stopping mechanism. A building (20m×5m) was constructed so that the impact chamber and recuperation tank are inside ...
Tópico(s): Mechanical and Optical Resonators
1986 - Elsevier BV | Physica B+C
R. Palomino, Miguel de Icaza, V. M. Castaño,
Tópico(s): Photorefractive and Nonlinear Optics
2001 - Elsevier BV | Optik
Miguel de Icaza, Ingo Molnar, Gadi Oxman,
Tópico(s): Distributed and Parallel Computing Systems
1997 - Belltown Media | Linux journal
M. Maus, Yan Lai, H. E. Noriega, S. Ramirez-Solano, Alejandro Avilés, Shi-Fan Chen, S. Fromenteau, Héctor Gil-Marín, Cullan Howlett, M. Vargas-Magaña, Martin White, Pauline Zarrouk, José Edgar Madriz Aguilar, S. P. Ahlen, O. Alves, S. Brieden, D. Brooks, E. Burtin, T. Claybaugh, Shaun Cole, K. Dawson, Miguel Icaza-Lizaola, Axel de la Macorra, A. de Mattia, Peter Doel, Simone Ferraro, N. Findlay, J. E. Forero-Romero, E. Gaztañaga, Satya Gontcho A Gontcho, ChangHoon Hahn, K. Honscheid, Mustapha Ishak, A. Kremin, Martin Landriau, L. Le Guillou, Marc Manera, R. Miquel, Eva-Maria Mueller, S. Nadathur, Gustavo Niz, N. Palanque‐Delabrouille, Will J. Percival, Claire Poppett, Francisco Prada, Mehdi Rezaie, A. Rocher, Graziano Rossi, E. Sánchez, D. Schlegel, M. Schubnell, D. Sprayberry, G. Tarlé, Sihan Yuan, Ruiyang Zhao, Rongpu Zhou, Hu Zou,
Tópico(s): Stellar, planetary, and galactic studies
2025 - Institute of Physics | Journal of Cosmology and Astroparticle Physics
J.M. Remes-Troche, Enrique Coss‐Adame, Aurelio López‐Colombo, Mercedes Amieva‐Balmori, Ramón Carmona Sánchez, Luis Charúa Guindic, Ricardo Flores Rendón, Octavio Gómez Escudero, Marina González Martínez, María Eugenia Icaza Chávez, M. Morales Arámbula, Max J. Schmulson, José Luis Tamayo de la Cuesta, Miguel A. Valdovinos, G. Vázquez Elizondo,
Significant advances have been made in the knowledge and understanding of the epidemiology, pathophysiology, diagnosis, and treatment of chronic constipation, since the publication of the 2011 guidelines on chronic constipation diagnosis and treatment in Mexico from the Asociación Mexicana de Gastroenterología. To present a consensus review of the current state of knowledge about chronic constipation, providing updated information and integrating the new scientific evidence. Three general coordinators ...
Tópico(s): Congenital gastrointestinal and neural anomalies
2018 - Elsevier BV | Revista de Gastroenterología de México (English Edition)
Miguel de Icaza, H. N. Presles, C. Brochet,
à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.
Tópico(s): Nitric Oxide and Endothelin Effects
1978 - EDP Sciences | Revue de Physique Appliquée
Miguel de Icaza, C. Renero, Fernando Prieto,
A detailed description is given of the light gas gun designed, machined, and operated at the National University of Mexico. Emphasis is made on the difficulties to be faced in a developing country to construct this kind of experimental facility, as well as on the solutions given. In particular, the barrel is made of 15 interlocking sections, each one as long as could be machined and honed in the available lathes in our country. These sections are conically tapered inside to allow the projectile ...
Tópico(s): Geophysics and Sensor Technology
1989 - American Institute of Physics | Review of Scientific Instruments
B. Armas, Miguel de Icaza, F. Sibieude,
Abstract Aluminium nitride was obtained in a cold wall reactor using AlCl 3 and NH 3 as precursors and N 2 as a carrier gas. AlCl 3 was synthesized in situ by means of an original method based on the SiCl 4 (g) reaction on Al(s). The substrate used is a cylinder of graphite coated with SiC and heated by high frequency induction. The deposition rate was studied as a function of temperature in the range 900–1500°C, the total pressure varying from 2 to 180 hPa. At low temperatures an Arrhenius type ...
Tópico(s): Semiconductor materials and devices
2000 - Elsevier BV | Surface and Coatings Technology