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3,725 results on '"Vargas, M. A."'

102. Optimisation of the pointing stability of laser-wakefield accelerated electron beams

Author

Garland, R. J., Poder, K., Cole, J., Schumaker, W., Doria, D., Gizzi, L. A., Grittani, G., Krushelnick, K., Kuschel, S., Mangles, S. P. D., Najmudin, Z., Symes, D., Thomas, A. G. R., Vargas, M., Zepf, M., and Sarri, G.

Subjects
Physics - Plasma Physics
Abstract

Laser-wakefield acceleration is a promising technique for the next generation of ultra-compact, high-energy particle accelerators. However, for a meaningful use of laser-driven particle beams it is necessary that they present a high degree of pointing stability in order to be injected into transport lines and further acceleration stages. Here we show a comprehensive experimental study of the main factors limiting the pointing stability of laser-wakefield accelerated electron beams. It is shown that gas-cells provide a much more stable electron generation axis, if compared to gas-jet targets, virtually regardless of the gas density used. A sub-mrad shot-to-shot fluctuation in pointing is measured and a consistent non-zero offset of the electron axis in respect to the laser propagation axis is found to be solely related to a residual angular dispersion introduced by the laser compression system and can be used as a precise diagnostic tool for compression oprtimisation in chirped pulse amplified lasers.

Published
2014

103. HIV Transmission Networks in the San Diego-Tijuana Border Region

Author

Mehta, SR, Wertheim, JO, Brouwer, KC, Wagner, KD, Chaillon, A, Strathdee, S, Patterson, TL, Rangel, MG, Vargas, M, Murrell, B, Garfein, R, Little, SJ, and Smith, DM

Subjects
Clinical Sciences, Public Health and Health Services
Abstract

Background: HIV sequence data can be used to reconstruct local transmission networks. Along international borders, like the San Diego-Tijuana region, understanding the dynamics of HIV transmission across reported risks, racial/ethnic groups, and geography can help direct effective prevention efforts on both sides of the border. Methods: We gathered sociodemographic, geographic, clinical, and viral sequence data from HIV infected individuals participating in ten studies in the San Diego-Tijuana border region. Phylogenetic and network analysis was performed to infer putative relationships between HIV sequences. Correlates of identified clusters were evaluated and spatiotemporal relationships were explored using Bayesian phylogeographic analysis. Findings: After quality filtering, 843 HIV sequences with associated demographic data and 263 background sequences from the region were analyzed, and 138 clusters were inferred (2-23 individuals). Overall, the rate of clustering did not differ by ethnicity, residence, or sex, but bisexuals were less likely to cluster than heterosexuals or men who have sex with men (p=0.043), and individuals identifying as white (p≤0.01) were more likely to cluster than other races. Clustering individuals were also 3.5 years younger than non-clustering individuals (p

Published
2015

104. Rural Latino caregivers' beliefs and behaviors around their children's salt consumption

Author

Hoeft, Kristin S, Guerra, Claudia, Gonzalez-Vargas, M Judy, and Barker, Judith C

Subjects
Public Health, Biomedical and Clinical Sciences, Nutrition and Dietetics, Health Sciences, Minority Health, Pediatric, Clinical Research, Prevention, Nutrition, Health Disparities, 3.1 Primary prevention interventions to modify behaviours or promote wellbeing, Cardiovascular, Oral and gastrointestinal, Cancer, Stroke, Metabolic and endocrine, Adolescent, Adult, California, Caregivers, Child, Child, Preschool, Commerce, Culture, Diet, Fast Foods, Feeding Behavior, Female, Focus Groups, Food Supply, Health Knowledge, Attitudes, Practice, Hispanic or Latino, Humans, Male, Middle Aged, Parents, Poverty, Rural Population, Sodium Chloride, Dietary, Latino, Parenting, Salt/Sodium, Hypertension, Feeding practices, Nutrition & Dietetics
Abstract

BackgroundPrevalence of high blood pressure has been increasing in U.S. children, with implications for long term health consequences. Sodium consumption, a modifiable risk factor for high blood pressure, is above recommended limits and increasing. Very little is known about Latino caregiver beliefs and behaviors around their children's salt consumption.MethodsIn California's Central Valley, qualitative interviews in Spanish investigated low-income caregivers' views and understandings of their children's dietary salt consumption. Thirty individual interviews and 5 focus groups were conducted (N=61). Interview transcripts were translated and transcribed, coded and thematically analyzed.ResultsSeven primary topic areas around children's salt intake and its impact on health were identified: children's favorite foods, children's dietary salt sources, superiority of home-cooked foods, salty and sweet foods, managing salt for health, developing children's tastes, and adding salt added at the table. Parents recognize common sources of sodium such as "junk food" and processed food and made efforts to limit their children's consumption of these foods, but may overlook other significant sodium sources, particularly bread, cheese, prepared soups and sports drinks. Caregivers recognize excess salt as unhealthy for children, but don't believe health problems (like high blood pressure) can occur in young children. Nevertheless, they made efforts to limit how much salt their children consumed through a variety of strategies; school meals were a source of high sodium that they felt were outside of their control.ConclusionLatino caregivers are concerned about their children's salt intake and attempt to limit consumption, but some common sources of sodium are under-recognized.

Published
2015

105. Generation of a neutral, high-density electron-positron plasma in the laboratory

Author

Sarri, G., Poder, K., Cole, J., Schumaker, W., Di Piazza, A., Reville, B., Doria, D., Dromey, B., Gizzi, L., Green, A., Grittani, G., Kar, S., Keitel, C. H., Krushelnick, K., Kushel, S., Mangles, S., Najmudin, Z., Thomas, A. G. R., Vargas, M., and Zepf, M.

Subjects
Physics - Plasma Physics
Abstract

We report on the laser-driven generation of purely neutral, relativistic electron-positron pair plasmas. The overall charge neutrality, high average Lorentz factor ($\gamma_{e/p} \approx 15$), small divergence ($\theta_{e/p} \approx 10 - 20$ mrad), and high density ($n_{e/p}\simeq 10^{15}$cm$^{-3}$) of these plasmas open the pathway for the experimental study of the dynamics of this exotic state of matter, in regimes that are of relevance to electron-positron astrophysical plasmas., Comment: The manuscript is withdrawn from ArXiv because of conflicting interests

Published
2013

106. A table-top laser-based source of femtosecond, collimated, ultra-relativistic positron beams

Author

Sarri, G., Schumaker, W., Di Piazza, A., Vargas, M., Dromey, B., Dieckmann, M. E., Chvykov, V., Maksimchuk, A., Yanovsky, V., He, Z. H., Hou, B. X., Nees, J. A., Thomas, A. G. R., Keit, C. H., Zepf, M., and Krushelnick, K.

Subjects
Physics - Accelerator Physics, High Energy Physics - Experiment
Abstract

The generation of ultra-relativistic positron beams with short duration ($\tau_{e^+} \leq 30$ fs), small divergence ($\theta_{e^+} \simeq 3$ mrad), and high density ($n_{e^+} \simeq 10^{14} - 10^{15}$ cm$^{-3}$) from a fully optical setup is reported. The detected positron beam propagates with a high-density electron beam and $\gamma$-rays of similar spectral shape and peak energy, thus closely resembling the structure of an astrophysical leptonic jet. It is envisaged that this experimental evidence, besides the intrinsic relevance to laser-driven particle acceleration, may open the pathway for the small-scale study of astrophysical leptonic jets in the laboratory.

Published
2013
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107. POPSTAR Evolutionary Synthesis Models III: Photometric properties of young star clusters and mixed populations

Author

García-Vargas, M. L., Mollá, M., and Martín-Manjón, M. L.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This is the third paper of a series reporting the results from the POPSTAR evolutionary synthesis models. The main goal of this work is to present and discuss the synthetic photometric properties of Single Stellar Populations (SSPs) resulting from our POPSTAR code. Colours in the Johnson and SDSS systems, halpha and hbeta luminosities and equivalent widths, and ionising region size, have been computed for a wide range of metallicity (Z = 0.0001 - 0.05) and age (0.1 Myr to 20 Gyr). We demonstrate the importance of the contribution of emission lines to broader-band photometry when characterising stellar populations, through the presentation of both contaminated and non-contaminated colours (in both the Johnson and SDSS systems). The tabulated colours include stellar and nebular components, in addition to line emission. The main application of these models is the determination of physical properties of a given young ionising cluster, when only photometric observations are available; for an isolated star forming region, the young star cluster models can be used, free from the contamination of any underlying background stellar population. In most cases, however, the ionising population is usually embedded in a large and complex system, and the observed photometric properties result from the combination of a young star-forming burst and the underlying older population of the host. Therefore, the second objective of this paper is to provide a grid of models useful in the interpretation of mixed regions where the separation of young and old populations is not sufficiently reliable. We describe the set of PopStar Spectral Energy Distributions, the derived colours and other photometric parameters, for mixed populations where an underlying host population is combined in different mass ratios with a recent ionising burst., Comment: 28 pages, 23 figures, accepted for MNRAS

Published
2013
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108. A Virtual Observatory Census to Address Dwarfs Origins. AVOCADO - I. Science goals, sample selection and analysis tools

Author

Sánchez-Janssen, R., Amorín, R., García-Vargas, M., Gomes, J. M., Huertas-Company, M., Jiménez-Esteban, F., Mollá, M., Papaderos, P., Pérez-Montero, E., Rodrigo, C., Almeida, J. Sánchez, and Solano, E.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

(Abridged) AVOCADO aims at establishing firm conclusions on the formation and evolution of dwarf galaxies by constructing and analysing a homogeneous, multiwavelength dataset for a statistically significant sample of approximately 6500 nearby dwarfs (M_i > -18 mag). We present the sample selection criteria and describe the suite of analysis tools, some of them developed in the framework of the Virtual Observatory. We make use of optical spectra and UV-to-NIR imaging of the dwarf sample to derive SFRs, stellar masses, ages and metallicities - which are further supplemented with structural parameters that are used to classify them morphologically. This dataset, coupled with a detailed characterisation of each dwarf's environment, allows for a fully comprehensive investigation of their origins and to track the potential evolutionary paths between the different dwarf types. We characterise the local environment of all dwarfs in our sample, paying special attention to trends with current star formation activity. We find that virtually all quiescent dwarfs are located in the vicinity (projected distances < 1.5 Mpc) of L* companions, consistent with recent results. While star-forming dwarfs are preferentially found at separations of the order of 1 Mpc, there appears to be a tail towards low separations (<100 kpc) in the distribution of projected distances. We speculate that, modulo projection effects, this probably represents a genuine population of late-type dwarfs caught upon first infall about their host and before environmental quenching has fully operated. In this context, these results suggest that internal mechanisms -such as gas exhaustion via star formation or feedback effects- are not sufficient to completely cease the star formation activity in dwarf galaxies, and that becoming the satellite of a massive central galaxy appears to be a necessary condition to create a quiescent dwarf., Comment: 13 pages, 12 figures (a few with degraded resolution). Final version accepted to A&A

Published
2013
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109. Posicionamiento para el manejo de la hipertensión arterial en atención primaria a partir del análisis crítico de las guías americana (2017) y europea (2018). Sociedad Española de Médicos de Atención Primaria (SEMERGEN)

Author

Adlbi Sibai, A., Alonso Moreno, F.J., Araujo Márquez, L., Arina Cordeu, A., Artigao Ródenas, L.M., Barquilla García, A., Beato Fernández, P., Caballero Pajares, V., Cabezudo Moreno, F., Calderón Montero, A., Carrasco, E., Carrasco Martín, J.L., Carrizo Sánchez, J., Cinza Sanjurjo, S., de las Cuevas Miguel, M.P., Divisón Garrote, J.A., Elligson Garcia, S., Escobar Cervantes, C., Esteban Rojas, M.B., Fernández Toro, J.M., Frias Vargas, M., García Criado, E., García Lerin, A., García Matarín, L., García Vallejo, O., Genique Martinez, R., Gil Gil, I., González Casado, I., Gorriz Teruel, J.L., Jimenez Baena, E., Llisterri Caro, J.L., Martí Canales, J.C., Mediavilla Bravo, J.J., Molina Escribano, F., Morales Quintero, S., Moyá Amengual, A., Nieto Barco, G., Pallarés Carratalá, V., Polo García, J., Prieto Díaz, M.A., Rama Martínez, T., Redondo Prieto, M., Rey Aldana, D., Riesgo Escudero, B.E., Rodríguez Roca, G.C., Rojas Martelo, G.A., Ruiz García, A., Sánchez Rodríguez, R., Sánchez Ruíz, T., Santos Altozano, C., Sanz García, F.J., Seoane Vicente, M.C., Serrano Cumplido, A., Turégano Yedro, M., Valls Roca, F., Velilla Zancada, S.M., Vicente Molinero, A., Pallarés-Carratalá, V., Velilla Zancada, S., and Górriz, J.L.

Published
2019
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111. Association between night-time surgery and occurrence of intraoperative adverse events and postoperative pulmonary complications

Author

Kroell, W., Metzler, H., Struber, G., Wegscheider, T., Gombotz, H., Hiesmayr, M., Schmid, W., Urbanek, B., Kahn, D., Momeni, M., Pospiech, A., Lois, F., Forget, P., Grosu, I., Poelaert, J., Mossevelde, V., van Malderen, M.C., Dylst, D., Melkebeek, J.V., Beran, M., Hert, S.D., Baerdemaeker, L.D., Heyse, B., Limmen, J.V., Wyffels, P., Jacobs, T., Roels, N., Bruyne, A.D., Velde, S.V.D., Marina, J.Z., Dejana, D.O., Pernar, S., Zunic, J., Miskovic, P., Zilic, A., Kvolik, S., Ivic, D., Darija, A.V., Skiljic, S., Vinkovic, H., Oputric, I., Juricic, K., Frkovic, V., Kopic, J., Mirkovic, I., Saric, J.P., Erceg, G., Dvorscak, M.B., Branka, M.S., Pavicic, A.M., Goranovic, T., Maldini, B., Radocaj, T., Gavranovic, Z., Inga, M.B., Sehovic, M., Stourac, P., Harazim, H., Smekalova, O., Kosinova, M., Kolacek, T., Hudacek, K., Drab, M., Brujevic, J., Vitkova, K., Jirmanova, K., Volfova, I., Dzurnakova, P., Liskova, K., Dudas, R., Filipsky, R., Kafrawy, S.E., Abdelwahab, H.H., Metwally, T., Ahmed, A.R., Ahmed Mostafa, E.S., Hasan, W.F., Ahmed, A.G., Yassin, H., Magdy, M., Abdelhady, M., Mahran, M., Herodes, E., Kivik, P., Oganjan, J., Aun, A., Sormus, A., Sarapuu, K., Mall, M., Karjagin, J., Futier, E., Petit, A., Gerard, A., Marret, E., Solier, M., Jaber, S., Prades, A., Krassler, J., Merzky, S., Abreu, M.G.D., Uhlig, C., Kiss, T., Bundy, A., Bluth, T., Gueldner, A., Spieth, P., Scharffenberg, M., Thiem, D.T., Koch, T., Treschan, T., Schaefer, M., Bastin, B., Geib, J., Weiss, M., Kienbaum, P., Pannen, B., Gottschalk, A., Konrad, M., Westerheide, D., Schwerdtfeger, B., Wrigge, H., Simon, P., Reske, A., Nestler, C., Valsamidis, D., Stroumpoulis, K., Antholopoulos, G., Andreou, A., Karapanos, D., Theodoraki, K., Gkiokas, G., Tasoulis, M.K., Sidiropoulou, T., Zafeiropoulou, F., Florou, P., Pandazi, A., Tsaousi, G., Nouris, C., Pourzitaki, C., Bystritski, D., Pizov, R., Eden, A., Pesce, C.V., Campanile, A., Marrella, A., Grasso, S., Michele, M.D., Bona, F., Giacoletto, G., Sardo, E., Sottosanti, L.G.V., Solca, M., Volta, C.A., Spadaro, S., Verri, M., Ragazzi, R., Zoppellari, R., Cinnella, G., Raimondo, P., Bella, D.L., Mirabella, L., D'antini, D., Pelosi, P., Molin, A., Brunetti, I., Gratarola, A., Pellerano, G., Sileo, R., Pezzatto, S., Montagnani, L., Pasin, L., Landoni, G., Zangrillo, A., Beretta, L., Parma, A.L.D., Tarzia, V., Dossi, R., Sassone, M.E., Sances, D., Tredici, S., Spano, G., Castellani, G., Delunas, L., Peradze, S., Venturino, M., Arpino, I., Sher, S., Tommasino, C., Rapido, F., Morelli, P., Vargas, M., Servillo, G., Cortegiani, A., Raineri, S.M., Montalto, F., Russotto, V., Giarratano, A., Baciarello, M., Generali, M., Cerati, G., Leykin, Y., Bressan, F., Bartolini, V., Zamidei, L., Brazzi, L., Liperi, C., Sales, G., Pistidda, L., Severgnini, P., Brugnoni, E., Musella, G., Bacuzzi, A., Muhardri, D., Agreta, G.G., Sada, F., Bytyqi, A., Karbonskiene, A., Aukstakalniene, R., Teberaite, Z., Salciute, E., Tikuisis, R., Miliauskas, P., Jurate, S., Kontrimaviciute, E., Tomkute, G., Xuereb, J., Bezzina, M., Borg, F. Joseph, Hemmes, S., Schultz, M., Hollmann, M., Wiersma, I., Binnekade, J., Bos, L., Boer, C., Duvekot, A., Veld, B.I ‘t, Werger, A., Dennesen, P., Severijns, C., Jong, J.D., Hering, J., Beek, R.V., Ivars, S., Jammer, I.B., Breidablik, A., Hodt, K.S., Fjellanger, F., Avalos, M.V., Jannicke, M.O., Andersson, E., Amir, S.K., Molina, R., Wutai, S., Morais, E., Tareco, G., Ferreira, D., Amaral, J., Castro, M.D.L.G., Cadilha, S., Appleton, S., Parente, S., Correia, M., Martins, D., Monteirosa, A., Ricardo, A., Rodrigues, S., Horhota, L., Grintescu, I.M., Mirea, L., Grintescu, I.C., Corneci, D., Negoita, S., Dutu, M., Popescu Garotescu, I., Filipescu, D., Prodan, A.B., Droc, G., Fota, R., Popescu, M., Tomescu, D., Petcu, A.M., Tudoroiu, M.I., Moise, A., Guran, C.T., Gherghina, I., Costea, D., Cindea, I., Copotoiu, S.M., Copotoiu, R., Barsan, V., Tolcser, Z., Riciu, M., Moldovan, S.G., Veres, M., Gritsan, A., Kapkan, T., Gritsan, G., Korolkov, O., Kulikov, A., Lubnin, A., Ovezov, A., Prokoshev, P., Lugovoy, A., Anipchenko, N., Babayants, A., Komissarova, I., Zalina, K., Likhvantsev, V., Fedorov, S., Lazukic, A., Pejakovic, J., Mihajlovic, D., Kusnierikova, Z., Zelinkova, M., Bruncakova, K., Polakovicova, L., Sobona, V., Barbka, N.S., Ana, P.G., Jovanov, M., Strazisar, B., Jasmina, M.B., Vesna, N.J., Voje, M., Grynyuk, A., Kostadinov, I., Alenka, S.V., Moral, V., Unzueta, M.C., Puigbo, C., Fava, J., Canet, J., Moret, E., Nunez, M.R., Sendra, M., Brunelli, A., Rodenas, F., Monedero, P., Hidalgo, F., Yepes, M.J., Martinez-Simon, A., Abajo, A., Lisi, A., Perez, G., Martinez, R., Granell, M., Vivo, J.T., Ruiz, C.S., Andrés Ibañez, J.A.D., Pastor, E., Soro, M., Ferrando, C., Defez, M., Cesar Aldecoa, A.S., Perez, R., Rico, J., Jawad, M., Saeed, Y., Gillberg, L., Bengisun, Z.K., Kazbek, B.K., Coskunfirat, N., Boztug, N., Sanli, S., Yilmaz, M., Hadimioglu, N., Senturk, N.M., Camci, E., Kucukgoncu, S., Sungur, Z., Sivrikoz, N., Ozgen, S.U., Toraman, F., Selvi, O., Senturk, O., Yildiz, M., Kuvaki, B., Gunenc, F., Kucukguclu, S., Ozbilgin, S., Maral, J., Canli, S., Arun, O., Saltali, A., Aydogan, E., Akgun, F.N., Sanlikarip, C., Karaman, F.M., Mazur, A., Vorotyntsev, S., Rousseau, G., Barrett, C., Stancombe, L., Shelley, B., Scholes, H., Limb, J., Rafi, A., Wayman, L., Deane, J., Rogerson, D., Williams, J., Yates, S., Rogers, E., Pulletz, M., Moreton, S., Jones, S., Venkatesh, S., Burton, M., Brown, L., Goodall, C., Rucklidge, M., Fuller, D., Nadolski, M., Kusre, S., Lundberg, M., Everett, L., Nutt, H., Zuleika, M., Carvalho, P., Clements, D., Ben, C.B., Watt, P., Raymode, P., Pearse, R., Mohr, O., Raj, A., Creary, T., Chishti, A., Bell, A., Higham, C., Cain, A., Gibb, S., Mowat, S., Franklin, D., West, C., Minto, G., Boyd, N., Mills, G., Calton, E., Walker, R., Mackenzie, F., Ellison, B., Roberts, H., Chikungwa, M., Jackson, C., Donovan, A., Foot, J., Homan, E., Montgomery, J., Portch, D., Mercer, P., Palmer, J., Paddle, J., Fouracres, A., Datson, A., Andrew, A., Welch, L., Rose, A., Varma, S., Simeson, K., Rambhatla, M., Susarla, J., Marri, S., Kodaganallur, K., Das, A., Algarsamy, S., Colley, J., Davies, S., Szewczyk, M., Smith, T., Ana, F.B., Luzier, E., Almagro, A., Melo, M.V., Fernando, L., Sulemanji, D., Sprung, J., Weingarten, T., Kor, D., Scavonetto, F., Tze, Y., Gregoretti, C., Neto, A.S., Hemmes, S.N.T., Ball, L., Hollmann, M.W., Mills, G.H., Melo, M.F.V., Putensen, C., Gama de Abreu, M., and Schultz, M.J.

Published
2019
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112. MOSAIC GLAO performance and system architecture: AO for the entire ELT focal plane

Author

Jackson, Kathryn J., Schmidt, Dirk, Vernet, Elise, Bharmal, Nazim Ali, Morris, Timothy J., Butterley, Timothy, Gill, Polly, Schmoll, Jürgen, Schwartz, Noah, Bramall, David, Davison, Christopher, Stephan, Jay, Artan, Raziye, Parr-Burman, Phil, Pello, R., Puech, M., Prieto, E., Rodrigues, M., Sanchez-Janssen, R., Dalton, G. B., Ducret, F., El Hadi, K., García-Vargas, M. L., and Lynn, J.

Published
2024
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113. Simulations of BAO reconstruction with a quasar Lyman-alpha survey

Author

Goff, J. -M. Le, Magneville, C., Rollinde, E., Peirani, S., Petitjean, P., Pichon, C., Rich, J., Yeche, C., Aubourg, E., Busca, N., Charlassier, R., Delubac, T., Hamilton, J. C., Delabrouille, N. Palanque, Paris, I., and Vargas, M.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The imprint of Baryonic Acoustic Oscillations (BAO) on the matter power spectrum can be constrained using the neutral hydrogen density in the intergalactic medium as a tracer of the matter density. One of the goals of the Baryon Oscillation Spectroscopic Survey (BOSS) of the Sloan Digital Sky Survey (SDSS-III) is to derive the Hubble expansion rate and the angular scale from the BAO signal in the IGM. To this aim, the Lyman-alpha forest of 10^5 quasars will be observed in the redshift range 2.2

Published
2011
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114. AVOCADO: A Virtual Observatory Census to Address Dwarfs Origins

Author

Sanchez-Janssen, R., Amorin, R., Garcia-Vargas, M., Gomes, J. M., Huertas-Company, M., Jimenez-Esteban, F., Molla, M., Papaderos, P., Perez-Montero, E., Rodrigo, C., Almeida, J. Sanchez, and Solano, E.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Dwarf galaxies are by far the most abundant of all galaxy types, yet their properties are still poorly understood -especially due to the observational challenge that their intrinsic faintness represents. AVOCADO aims at establishing firm conclusions on their formation and evolution by constructing a homogeneous, multiwavelength dataset for a statistically significant sample of several thousand nearby dwarfs (-18 < Mi < -14). Using public data and Virtual Observatory tools, we have built GALEX+SDSS+2MASS spectral energy distributions that are fitted by a library of single stellar population models. Star formation rates, stellar masses, ages and metallicities are further complemented with structural parameters that can be used to classify them morphologically. This unique dataset, coupled with a detailed characterization of each dwar's environment, allows for a fully comprehensive investigation of their origins and to track the (potential) evolutionary paths between the different dwarf types., Comment: 4 pages, 1 figure. To appear in the proceedings of IAU Symposium 277, "Tracing the Ancestry of Galaxies on the Land of our Ancestors", Carignan, Freeman, and Combes, eds

Published
2011
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115. International Nosocomial Infection Control Consortium report, data summary of 50 countries for 2010-2015: Device-associated module

Author

Desse, J.E., Maurizi, D.M., Montanini, A.M., Chaparro, G.J., Stagnaro, J.P., Romani, A., Bianchi, A.C., Álvarez, G., Palaoro, A., Bernan, M., Cabrera-Montesino, R., Domínguez, C., Rodríguez, C.G., Silva, C.G., Bogdanowicz, E., Riera, F.O., Benchetrit, G., Perez, I., Vimercati, J., Marcos, L.S., Ramasco, L., Caridi, M., Oyola, M.C., Rodríguez, M.C., Spadaro, M.L., Olivieri, M.S., Saul, P., Juarez, P.D., Pérez, R.H., Botta, P., Quintana, D.Q., Ríos, A.M., Chediack, V., Chilon, W., Alsayegh, Ameena Isa, Yaseen, Fatema Hasan, Hani, Lateefa Fardan, Sowar, Saleh Fakher, Magray, Tahira Anwar, Medeiros, E.A., Alves De Oliveira, A., Romario-Mendes, A., Fernandes-Valente, C., Santos, C., Escudeiro, D., Azevedo-Ferreira Lima, D., Azevedo-Pereira, D., Onzi-Siliprandi, E.M., Serpa-Maia, F., Aguiar-Leitao, F., Assuncao-Ponte, G., Dos Anjos-Lima, J., Olszewski, J., Harten Pinto Coelho, K., Alves De Lima, L.F., Mendonca, M., Maciel-Canuto Amaral, M.L., Tenorio, M.T., Gerah, S., Andrade-Oliveira-Reis, M., Moreira, M., Ximenes-Rocha Batista, M., Campos-Uchoa, R.S., Rocha-Vasconcelos Carneiro, R., Amaral De Moraes, R., Do Nascimento, S.C., Moreira-Matos, T., Lima-De Barros Araujo, T.M., De Jesus Pinheiro-Bandeira, T., Machado-Silva, V.L., Santos Monteiro, W.M., Hristozova, E., Kostadinov, E.D., Angelova, K., Velinova, V.A., Dicheva, V.J., Guo, X., Ye, G., Li, R., Song, L., Liu, K., Liu, T., Song, G., Wang, C., Yang, X., Yu, H., Yang, Y., Martínez, A., Vargas-García, A.R., Lagares-Guzmán, A., González, A.P., Linares, C., Ávila-Acosta, C., Santofimio, D., Yepes-Gomez, D., Marin-Tobar, D.A., Mazo-Elorza, D.P., Chapeta-Parada, E.G., Camacho-Moreno, G., Roncancio-Vill, G.E., Valderrama-Marquez, I.A., Ruiz-Gallardo, J.E., Ospina-Martínez, J.O., Osorio, J., Marín-Uribe, J.I., López, J.C., Gualtero, S., Rojas, J.R., Gomez-Nieto, K., Rincon, L.Y.M., Meneses-Ovallos, L., Canas-Giraldo, L.M., Burgos-Florez, L.D., Amaral-Almeida Costa, M., Rodriguez, M., Barahona-Guzmán, N., Mancera-Paez, O., Rios-Arana, P.A., Ortega, R., Romero-Torres, S.L., Pulido-Leon, S.M., Valderrama, S., Moreno-Mejia, V.M., Raigoza-Martinez, W., Villamil-Gomez, W., Pardo-Lopez, Y.A., Argüello-Ruiz, A., Solano-Chinchilla, A., Muñoz-Gutierrez, G.A., Calvo-Hernández, I., Maroto-Vargas, L., Zuniga, M.A., Valverde-Hernandez, M., Chavarria-Ugalde, O., Herrera, B., Díaz, C., Bovera, M.M., Cevallos, C., Pelaez, C., Jara, E., Delgado, V., Coello-Gordon, E.E., Picoita, F., Guerrero-Toapant, F.M., Valencia, F., Santacruz, G., Gonzalez, H., Pazmino, L.N., Garcia, M.F., Arboleda, M., Lascano, M., Alquinga, N., Ramírez, V., Yousef, Reham H.A., Moustafa, Abd El Moniem, Ahmed, A., Elansary, A.M., Ali, Ahmad Mahmoud, Hasanin, Ahmed, Messih, Antoine Abdel, Ramadan, Arwa, El Awady, B.A., Hassan, D.M., Abd El Aziz, Doaa, Hamza, Hala, Agha, Hala Mounir, Ghazi, Islam Abdullorziz, ElKholy, J., Fattah, May Abdel, Elanany, Mervat, Mansour, M., Haleim, M.M.A., Fouda, R., El-Sherif, Rasha Hamed, Bekeit, S., Bayani, V., Elkholy, Y.S., Abdelhamid, Y.M., Salah, Zeinab, Rivera, D.M., Chawla, A., Manked, A.N., Azim, A., Mubarak, A., Thakur, A., Dharan, A.V., Patil, A., Sasidharan, A., Bilolikar, Anil Kumar, Anirban Karmakar, A., Mathew, A.M., Kulkarni, Anuja, Agarwal, Anuradha, Sriram, Anuradha, Dwivedy, A., Dasgupta, Arnab, Bhakta, A., Suganya, Arul Rose, Poojary, A., Mani, Ashwin Kumar, Sakle, Asmita, Abraham, Babu K., Padmini, Baby, Ramachandran, B., Ray, Banambar, Pati, Basanta Kumar, Chaudhury, Bhaskar Narayan, Mishra, Biraj Mohan, Biswas, S., Saibala, M. Bri, Jawadwala, Burhan Q., Rodrigues, C., Modi, Chirag, Patel, Chirag, Khanna, D.K., Devaprasad, Dedeepiya, Divekar, Deepa, Aggarwal, Deepesh G., Divatia, J.V., Zala, Dolatsinh, Pathrose, Edwin, Abubakar, Fazil, Chacko, Felcy, Gehlot, G.S., Khanna, Gautam, Sale, H.K., Roy, Indranil, Shelgaonkar, Jayant, Sorabjee, Jehangir, Eappen, Jincy, Mathew, Justin, Pal, Jyotishka, Varma, Karthikeya, Joshi, Kashmira Limaye, Sandhu, Kavita, Kelkar, R., Ranganathan, Lakshmi, Pushparaj, L., Lavate, Madhav, Latha, Madhavi, Suryawanshi, Madhupriya, Bhattacharyya, M., Kavathekar, Maithili, Agarwal, Manoj Kumar, Patel, Mayur, Shah, Mehul, Sivakumar, M.N., Kharbanda, Mohit, Bej, Mrinmoy, Potdar, Mrunalini, Chakravarthy, M., Karpagam, M., Myatra, S.N., Gita, N., Rao, N.P., Sen, N., Ramakrishnan, N., Jaggi, N., Saini, N., Pawar, N.K., Modi, Nikhil, Pandya, Nirav, Mohanty, Nisith, Thakkar, Pooja, Joshi, Pradnya, Sahoo, Prafulla Kumar, Nair, Pravin Kumar, Kumar, Priyadarshini Senthil, Patil, Priyanka, Mukherjee, Purnima, Mathur, P., Shah, Purvi, Sukanya, R., Arjun, Rajalakshmi, Chawla, Rajesh, Gopalakrishnan, Ram, Venkataraman, Ramesh, Raut, S., Krupanandan, Ravikumar, Tejam, Reshma, Misra, Richa, Debroy, Ritesh, Saranya, S., Narayanan, Sajith, Mishra, Sanghamitra, Saseedharan, Sanjith, Sengupta, Sankar, Patnaik, S.K., Sinha, Saswati, Blessymole, Seelas, Rohra, Seema, Rajagopal, Senthilkumar, Mukherjee, Shanta, Sengupta, Sharmila, John, Sheeba, Bhattacharya, Shefali, Sijo, Bhattacharyya, Sinchan, Singh, S., Sohanlal, T., Vadi, Sonali, Dalal, S.S., Todi, S.K., Kumar, Subodh, Kansal, Sudha, Misra, Sudhjan, Bhattacharyya, Sudipta, Nirkhiwale, Suhas, Purkayastha, Sujit Kar, Mukherjee, Sujoy, Sahu, S., Sharma, Sunil, Kumar, Suresh, Basu, S., Shetty, S., Shah, S., Singhal, T., Francis, Thara, Anand, Thejasvini, Venkateshwar, V., Thomas, Valsa, Kothari, V., Velupandi, Kantroo, Vini, Sitohang, Gortap, Kadarsih, Retno, Sanaei, Anahita, Maghsudi, Behzad, Sabetian, Golnar, Masjedi, Mansoor, Alebouyeh, Masoud, Sherafat, Somayeh Jahani, Mohamed, Yassir Khidir, Al Khamis, Abdulrahim, Alsaadi, Adnan Soliman, Al-Jarie, Ahmed Abdoh, Mutwalli, Aisha Hassan, Rillorta, A.S.K., Thomas, Anumol, Kelany, Ashraf, Manao, Athena, Alamri, Dhaffer Moghram, Santiago, E.B., Cruzpero, E.P., Sawan, Fahad Ahmed, Al Qasmah, Fatima Abdullah, Alabdaly, Haeel, Al-Dossary, Hajer Am, Ahmed, Hala, Roshdi, Hala, Al-Alkami, Halima Yahia, Hanafi, Hana, Ammari, Hassan Eisa, Hani, Hatem Mohd Al, Asiri, Ibrahim A.M. Alzaydani, Mendoza, Jeffrey Asidera, Philipose, Jomol, Selga, Joy Ola, Kehkashan, Ghalilah, Khalid Mohammed, Redito, Leide Shyrine, Josph, L., Al-Alawi, M., Al-Gethamy, Manal Mansour, Madco, Marjory, Manuel, M.G., Girvan, M., Aldalaton, Mervat, De Guzman, M., Alkhamaly, Modhi, Masfar, Mohammad, Karrar, Mohammed Ahmed Ali, Al Azmi, Munayfa Musallam, Quisai, Myrna Lim, Torres, Myrna Misador, Al-Abdullah, N., Tawfic, Nader Ahmed, Elsayed, Nashwa, Abdulkhalik, Nawal Salah, Bugis, Nehad Abdulshakour, Ariola, Neilia Cardinal, Gad, N., Alghosn, Nesreen, Tashkandi, Nidal, Zharani, N. Al, De Vera, P.A., Krishnan, Radhika, Al Shehri, Raed Hassan, Jaha, Rasha Nour Aldeen, Thomas, Reny, Cresencia, Rhea Lynn, Penuliar, R., Lozada, R.V., Al Qahtani, S., Twfik, Sameh, Al Faraj, Sarah Hassan, El-Sherbiny, Sherin, Alih, Siti Jhulmina B., Briones, Solita, Bukhari, Syed Zahid, Alotaibi, Tariq Saad Abdulhadi, Gopal, Uma, Nair, Usha, Abdulatif, Wael Abdulrahman, Hussain, Waleed Mohd, Demotica, Wynndale Mae, Spahija, G., Baftiu, N., Gashi, A., Omar, Abeer A., Mohamed, A.M., Rebello, F.M., Almousa, Haifaa Hassan, Abdo, Naglaa Mahmoud, George, S.M., Khamis, Soad, Thomas, Suja, Ahmad Zaatari, A., Anwar Al Souheil, A., Ayash, H., Zeid, I., Tannous, J., Zahreddine, N.K., Ahmadieh, R., Mahfouz, T., Kardas, T., Tanzi, V., Kanafani, Z., Hammoud, Z., Dagys, A., Grinkeviciute, D., Kevalas, R., Kondratas, T., Petrovska, Milena, Popovska, Katja, Mitrev, Zan, Miteva, Zaneta Bogoevska, Jankovska, Katerina, Guroska, Snezana Tufekcievska, Gan, Chin Seng, Othman, Ainul Auzani, Yusof, Aliza Mohamad, Abidin, Anis Siham Zainal, Aziz, Fadzlina Abdul, Weng, Foong Kit, Zainol, Hasimah, Bakar, Kamal Bashar Abu, Lum, Lucy Chai See, Mansor, Marzida, Zaman, Mazuin Kamarul, Jamaluddin, Mohamad Fadhil Hadi, Hasan, Mohd Shahnaz, Rahman, Raha Abdul, Zaini, Rhendra Hardy Mohamad, Zhazali, Rosliza, Sri Ponnampala, Sasheela Sri La, Chuah, Soo Lin, Shukeri, Wan Fadzlina Wan Mohd, Hassan, Wan Nazaruddin Wan, Yusoff, Wan Nurbayah Wan, Mat, Wan Rahiza Wan, Cureno-Diaz, M.A., Aguirre-Avalos, G., Flores-Alvarado, A., Cerero-Gudino, A., Zamores-Pedroza, A., Cano-Munoz, B., Hernandez-Chena, B.E., Carreon-Martinez, C.C., Coronado-Magana, H., Corona-Jimenez, F., Rodriguez-Noriega, E., Alcala-Martinez, E., Gonzalez-Diaz, E., Guerra-Infante, F.M., Arteaga-Troncoso, G., Martinez-Falcon, G., Leon-Garnica, G., Delgado-Aguirre, H.A., Perez-Gomez, H.R., Sosa-Gonzalez, I.E., Galindo-Olmeda, J.A., Ayala-Gaytan, J.J., Rodriguez-Pacheco, J., Zamorano-Flores, L., Lopez-Pulgarin, J.A., Miranda-Novales, M.G., Ramírez, M., Lopez-Hurtado, M., Lozano, M., Gomez, M.E., Sanchez-Castuera, M.E., Kasten-Monges, M., Gonzalez-Martinez, M., Sanchez-Vargas, M., Culebro-Burguet, M.C., Altuzar-Figueroa, M.A., Mijangos-Mendez, J.C., Ramires, O.G., Espinosa, O.S., De Leon-Escobedo, R., Salas-Flores, R., Ruiz-Rendon, R., Petersen-Morfin, S., Aguirre-Diaz, S.A., Esparza-Ahumada, S., Vega-Gonzalez, S., Gaona-Flores, V., Monroy-Colin, V.A., Cruz-Rivera, Z., Bat-Erdene, A., Narankhuu, Batsaikhan, Choijamts, Batsuren, Tuvdennyam, Battsetseg, Batkhuu, Byambadorj, Chuluunchimeg, K.H., Enkhtsetseg, D., Batjargal, G., Bayasgalan, G., Dorj, M., Mendsaikhan, Naranpurev, Baatar, Otgon, Suvderdene, P., Baigalmaa, S., Khajidmaa, T., Begzjav, Tsolmon, Tsuyanga, Ariyasuren, Z., Zeggwagh, A.A., Berechid, K., Abidi, K., Madani, N., Abouqal, R., Koirala, Anjeela, Giri, Rashmi, Sainju, Samana, Acharya, Subhash Prasad, Ahmed, Abeera, Raza, Aun, Parveen, Azra, Sultan, Faisal, Khan, Maria, Paul, Nadeem, Daud, Nargis, Yusuf, Sana, Nizamuddin, Summiya, Garcia-Mayorca, E., Castaño, E.G., Moreno-Castillo, J.L., Ballinas-Aquino, J.M., Lara, L., Vargas, M., Rojas-Bonilla, M.I., Ramos, S.J., Mapp, T., De Iturrado, V., La Hoz Vergara, C.E., Linares-Calderon, C.F., Moreno, D., Ramirez, E., Ramírez Wong, F.M., Montenegro-Orrego, G.M., Sandoval-Castillo, H.R., Pichilingue-Chagray, J., Mueras-Quevedo, J., Aibar-Yaranga, K.F., Castillo-Bravo, L.I., Santivanez-Monge, L.M., Mayorga-Espichan, M.J., Rosario-Tueros, M.L.G., Changano-Rodriguez, M.V., Salazar-Ramirez, N.E., Marquez-Mondalgo, V.A., Tajanlangit, Anna Lyn N., Tamayo, Arnefelina S., Llames, Cristina Mari Jean P., Labro, Ever, Dy, Ana P., Fortin, J.D., Bergosa, L.D., Salvio, L.G., Bermudez, V., Sg-Buenaflor, M.C., Trajano, M.F., Mendoza, M.T., Javellana, O.P., Maglente, R.R., Arreza-Galapia, Y., Navoa-Ng, J.A., Kubler, A., Barteczko-Grajek, B., Dragan, B., Zurawska, M., Mikaszewska-Sokolewicz, M., Zielinska, M., Ramos-Ortiz, G.Y., Florin-Rogobete, A., Vlad, C. Daliborca, Muntean, D., Sandesc, D., Papurica, M., Licker, M., Bedreag, Ovidiu Horea, Popescu, R., Grecu, S.D., Dumitrascu, V., Molkov, A., Galishevskiy, D., Furman, M., Simic, A., Lekic, D., Ristic, G., Eremija, J., Kojovic, J., Nikolic, L., Bjelovic, M., Lesnakova, A., Hlinkova, S., Gamar-Elanbya, M.O., Supa, Namphon, Prasan, Pornpheth, Pimathai, Rungratchanee, Wanitanukool, Suthinee, Somabutr, Suwara, Ben-Jaballah, N., Borgi, A., Bouziri, A., Dilek, A., Oncul, A., Kaya, A., Demiroz, Ali Pekcan, Gunduz, A., Ozgultekin, A., Inan, Asuman, Yalcin, A.N., Ramazanoglu, A., Engin, A., Willke, A., Meco, Basak Ceyda, Aygun, C., Bulut, C., Uzun, C., Becerik, C., Hatipoglu, Cigdem Ataman, Guclu, Cigdem Yildirim, Ozdemir, D., Yildizdas, D., Ugurcan, D., Azak, E., Guclu, E., Yilmaz, Esmeray Mutlu, Sebnem-Erdinc, F., Sirmatel, F., Ulger, F., Sari, Ferhat, Kizilates, Filiz, Usluer, G., Ceylan, G., Ersoz, G., Kaya, G., Ertem, Gunay Tuncer, Senol, G., Agin, Hasan, Cabadak, Hatice, Yilmaz, H., Sungurtekin, Hulya, Zengin, Humeyra, Turgut, H., Ozgunes, I., Devrim, I., Erdem, I., Işcanlı, Inşa Gul Ekiz, Bakir, M. Mehmet, Geyik, M.F., Oral, M., Meric, M., Cengiz, M., Ozcelik, M., Altindis, M., Sunbul, M., Elaldi, N., Kuyucu, N., Unal, N., Oztoprak, N., Yasar, N., Erben, Nurettin, Bayram, Nuri, Dursun, Oguz, Karabay, Oguz, Coskun, O., Horoz, Ozden Ozgur, Turhan, Ozge, Sandal, Ozlem Sarac, Tekin, Recep, Esen, Saban, Erdogan, Selvi Yener, Unal, Serhat, Karacorlu, Sevim, Sen, Suha, Sacar, Suzan, Yarar, Volkan, Oruc, Yeliz, Sahip, Yusuf, Kaya, Zeynep, Philip, Anamma, Elhoufi, Ashraf, Alrahma, Hussain, Sachez, E., Perez, F., Empaire, G.D., Vidal, H., Montes-Bravo, L., Guzman Siritt, M.E., Orozco, N., Navarrete, N., Ruiz, Y., De Anez, Z. Duran-Gil, Van Trang, Dang Thi, Minh, Dao Quang, Co, Dao Xuan, Anh, Dinh Pham Phuong, Thu, Le Thi Anh, Tuyet, Le Thi Diem, Nguyet, Le Thi Thu, Chau, Ngo uy, Binh, Nguyen Gia, Tien, Nguyen Phuc, Anh, Nguyen Quoc, Hang, Phan Thi, Hanh, Tran Thi My, Hang, Tran Thi Thuy, Thu, Truong Anh, Thoa, Vo Thi Hong, Rosenthal, Víctor Daniel, Al-Abdely, Hail M., El-Kholy, Amani Ali, AlKhawaja, Safa A Aziz, Leblebicioglu, Hakan, Mehta, Yatin, Rai, Vineya, Hung, Nguyen Viet, Kanj, Souha Sami, Salama, Mona Foda, Salgado-Yepez, Estuardo, Elahi, Naheed, Morfin Otero, Rayo, Apisarnthanarak, Anucha, De Carvalho, Braulio Matias, Ider, Bat Erdene, Fisher, Dale, Buenaflor, Maria Carmen S.G., Petrov, Michael M., Quesada-Mora, Ana Marcela, Zand, Farid, Gurskis, Vaidotas, Anguseva, Tanja, Ikram, Aamer, Aguilar de Moros, Daisy, Duszynska, Wieslawa, Mejia, Nepomuceno, Horhat, Florin George, Belskiy, Vladislav, Mioljevic, Vesna, Di Silvestre, Gabriela, Furova, Katarina, Ramos-Ortiz, Gloria Y., Gamar Elanbya, May Osman, Satari, Hindra Irawan, Gupta, Umesh, Dendane, Tarek, Raka, Lul, Guanche-Garcell, Humberto, Hu, Bijie, Padgett, Denis, Jayatilleke, Kushlani, Ben Jaballah, Najla, Apostolopoulou, Eleni, Prudencio Leon, Walter Enrique, Sepulveda-Chavez, Alejandra, Telechea, Hector Miguel, Trotter, Andrew, Alvarez-Moreno, Carlos, and Kushner-Davalos, Luis

Published
2016
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117. PopStar Evolutionary Synthesis Models II: Optical emission-line spectra from Giant H{\sc ii} regions

Author

Martín-Manjón, M. L., García-Vargas, M. L., Mollá, M., and Díaz, A. I.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

This is the second paper of a series reporting the results from the PopStar evolutionary synthesis models. Here we present synthetic emission line spectra of H{\sc ii} regions photoionized by young star clusters, for seven values of cluster masses and for ages between 0.1 and 5.2 Myr. The ionizing Spectral Energy Distributions (SEDs) are those obtained by the PopStar code \citep*{mgb09} for six different metallicities, with a very low metallicity set, Z=0.0001, not included in previous similar works. We assume that the radius of the H{\sc ii} region is the distance at which the ionized gas is deposited by the action of the mechanical energy of the winds and supernovae from the central ionizing young cluster. In this way the ionization parameter is eliminated as free argument, since now its value is obtained from the cluster physical properties (mass, age and metallicity) and from the gaseous medium characteristics (density and abundances). We discuss our results and compare them with those from previous models and also with a large and data set of giant H{\sc ii} regions for which abundances have been derived in a homogeneous manner. The values of the [OIII] lines (at $\lambda\lambda$ 4363, 4959, 5007\AA) in the lowest metallicity nebulae are found to be very weak and similar to those coming from very high metallicity regions (solar or over-solar). Thus, the sole use of the oxygen lines is not enough to distinguish between very low and very high metallicity regions. In these cases we emphasize the need of the additional support of alternative metallicity tracers, like the [SIII] lines in the near-\textit{IR}., Comment: 20 pages, 26 figures, accepted for publication in MNRAS Main Journal

Published
2009
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118. PopStar I: Evolutionary synthesis models description

Author

Molla, M., Garcia-Vargas, M. L., and Bressan, A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present new evolutionary synthesis models for Simple Stellar Populations for a wide range of ages and metallicities. The models are based on the Padova isochrones. The core of the spectral library is provided by the medium resolution Lejeune et al. atmosphere models. These spectra are complemented by NLTE atmosphere models for hot stars that have an important impact in the stellar cluster's ionizing spectra: O, B and WR stellar spectra at the early ages, and spectra of post-AGB stars and planetary nebulae, at intermediate and old ages. At young ages, our models compare well with other existing models but we find that, the inclusion of the nebular continuum, not considered in several other models, reddens significantly the integrated colours of very young stellar populations. This is consistent with the results of spectral synthesis codes particularly devised for the study of starburst galaxies. At intermediate and old ages, the agreement with literature model is good and, in particular, we reproduce well the observed colours of star clusters in LMC. Given the ability to produce good integrated spectra from the far-UV to the infrared at any age, we consider that our models are particularly suited for the study of high redshift galaxies. These models are available on the web site {http://www.fractal-es.com/SEDmod.htm} and also through the Virtual Observatory Tools on the PopStar server., Comment: 21 pages, 29 figures, to be published by MNRAS

Published
2009
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120. First report of Parastagonospora nodorum causing Septoria nodorum blotch of wheat in Paraguay

Author

Fernandez‐Gamarra, M., primary, Talavera‐Stefani, L., additional, Mongelos‐Franco, Y., additional, Burgos‐Cantoni, C., additional, Sanabria‐Velazquez, A., additional, Caballero‐Mairesse, G., additional, Chavez, P., additional, Vargas, M., additional, Scholz, R., additional, Quintana, L., additional, Mohan‐Kohli, M., additional, and Enciso‐Maldonado, G., additional

Published
2024
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122. Contributors

Author

Abdel-Shafy, Ebtesam A., primary, Abdel-Wahhab, Mosaad A., additional, Abdollahi, Mohammad, additional, Abdurahman, Nour Hamid, additional, Adefegha, Stephen Adeniyi, additional, Adeyemi, Wale J., additional, Agus, Hizlan Hincal, additional, Alabi, Quadri K., additional, Alara, Oluwaseun Ruth, additional, Alarcón Yaquetto, Dulce E., additional, Al-Hady, Doaa Abd, additional, Ali, Sanaa A., additional, Al-Talhi, Tariq, additional, Alvarenga, María Olimpia Paz, additional, Aly, Hanan F., additional, Al-Yasi, Hatim Matuq M., additional, Anadón, Arturo, additional, Aragão, Walessa Alana Bragança, additional, Ares, Irma, additional, Arici, M. Aylin, additional, Arriaga-Alba, Myriam, additional, Arumugam, Thilona, additional, Atalar, Mehmet Nuri, additional, Aydin, Yasemin, additional, Ayhllon-Osorio, Carlos Alberto, additional, Basta, Giuseppina, additional, Battal, Abdulhamit, additional, Bittencourt, Leonardo Oliveira, additional, Boşgelmez, İffet İpek, additional, Butanda-Ochoa, Armando, additional, CAM, Isa, additional, Capanoglu, Esra, additional, Catalkaya, Gizem, additional, Cervelli, Tiziana, additional, Ceylan, Fatma Duygu, additional, Chemelo, Victória dos Santos, additional, Chen, Yuguo, additional, Chuturgoon, Anil A., additional, Colle, Dirleise, additional, Costa, Ana Carolina Oliveira, additional, Del Turco, Serena, additional, Diab, Abd El-Aziz A., additional, Dludla, Phiwayinkosi V., additional, Dogan, Abdulahad, additional, Eiró, Luciana Guimarães, additional, Eken, Ayşe, additional, El-Megharbel, Samy M., additional, El-Nekeety, Aziza A., additional, Erkan, Melike, additional, Farina, Marcelo, additional, Feng, Yibin, additional, Fernandes, Rafael Monteiro, additional, Ferreira, Maria Karolina Martins, additional, Fett, Roseane, additional, Flampouri, Evangelia, additional, Ghazi, Terisha, additional, Gobouri, Adil A., additional, Gonzaga, Luciano Valdemiro, additional, Gonzales, Gustavo F., additional, Graciela, Karadayian Analía, additional, Grzelak, Agnieszka, additional, Guldiken, Burcu, additional, Hamza, Reham Z., additional, Han, Qi, additional, Hassani, Shokoufeh, additional, Heidari, Reza, additional, Hernández-Muñoz, Rolando, additional, Ibrahim, Nabaweya A., additional, Ilhan, Mert, additional, J, Tejo, additional, Juanita, Bustamante, additional, Kechrid, Zine, additional, Khiari, Mohamed, additional, Klibet, Fahima, additional, KOC, Ural, additional, Kovács, Melinda, additional, Kowalczyk, Tomasz, additional, Krishnaiah, Duduku, additional, Kronberg, María Florencia, additional, Kruszewski, Marcin, additional, Lima, Leidiane Alencar de Oliveira, additional, Lima, Rafael Rodrigues, additional, López-Vargas, M. Rocío, additional, Louw, Johan, additional, Malekirad, Ali Akbar, additional, Martínez, María Aránzazu, additional, Martínez-Larrañaga, María Rosa, additional, Marzouki, Lamjed, additional, Mazibuko-Mbeje, Sithandiwe E., additional, Mehrzad, Jalil, additional, Merzouk, Amel Saidi, additional, Merzouk, Hafida, additional, Mézes, Miklós, additional, Miranda, Giza Hellen Nonato, additional, Molehin, Olorunfemi Raphael, additional, Momtaz, Saeideh, additional, Montero-Montoya, Regina, additional, Munarriz, Eliana Rosa, additional, Mxinwa, Vuyolwethu, additional, Nascimento, Priscila Cunha, additional, Nkambule, Bongani B., additional, Nyambuya, Tawanda M., additional, Ommati, Mohammad Mehdi, additional, Orlando, Patrick, additional, Orta Yilmaz, Banu, additional, Ozkan, Gulay, additional, Pang, Jiaojiao, additional, Patel, Vinood B., additional, Paz Aparicio, Valeria M., additional, Preedy, Victor R., additional, Puty, Bruna, additional, Rajendram, Rajkumar, additional, Ralston, Nicholas V.C., additional, Raymond, Laura J., additional, Ren, Jun, additional, Rossen, Ariana, additional, Rtibi, Kaïs, additional, Sak, Katrin, additional, Schulz, Mayara, additional, Sebai, Hichem, additional, Serrano-Contreras, Jose Ivan, additional, Sheik Abdul, Naeem, additional, Silvestri, Sonia, additional, Silvia, Lores-Arnaiz, additional, Sitarek, Przemysław, additional, Skała, Ewa, additional, Şlencu, Bogdan Gabriel, additional, Śliwiński, Tomasz, additional, Sun, Ruru, additional, Szabó, András, additional, Terpilowska, Sylwia, additional, Tiano, Luca, additional, Torres-Santiago, Gabriela, additional, Tuncok, Yesim, additional, Türkan, Fikret, additional, Wang, Ning, additional, Wang, Shuyi, additional, Xu, Changchang, additional, Xu, Feng, additional, Yildizbayrak, Nebahat, additional, Zepeda-Vallejo, L. Gerardo, additional, Zhang, Cheng, additional, Zhang, Ying, additional, and Zheng, Yue, additional

Published
2021
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125. A new grid of evolutionary synthesis models

Author

Mollá, M., García-Vargas, M. L., Bressan, Alessandro, and Gómez-Alvarez, Pedro

Subjects
Astrophysics
Abstract

We present new evolutionary synthesis models for Single Stellar Populations covering a wide range in age and metallicity. The most important difference with existing models is the use of NLTE atmosphere models for the hot stars (O, B, WR, post-AGB stars, and planetary nebulae) that have an important impact in the stellar cluster's ionizing spectra., Comment: 2 pages, 1 figure, proceedings of the conference Pathways Through an Eclectic Universe, Eds. T.Mahoney, A. Vazdekis & J. Knapen, Tenerife 2007

Published
2007

126. ACORDE a Cosmic Ray Detector for ALICE

Author

Fernandez, A., Gamez, E., Herrera, G., Lopez, R., Martinez, M. I., Pagliarone, C., Paic, G., Roman, S., Tejeda, G., Vargas, M. A., Vergara, S., Villase, L., and Zepeda, A.

Subjects
Physics - Instrumentation and Detectors
Abstract

ACORDE is one of the ALICE detectors, presently under construction at CERN. It consists of an array of plastic scintillator counters placed on the three upper faces of the ALICE magnet. It will act as a cosmic ray trigger, and, together with other ALICE sub-detectors, will provide precise information on cosmic rays with primary energies around $10^{15} \div 10^{-17}$ eV. Here we describe the design review of ACORDE along with the present status and integration into ALICE., Comment: 2 pages, 2 figures. Conference Proceeding of the X Pisa Meeting on Advanced Detectors, to be published in a special issue of Nuclear Instruments and Methods

Published
2006
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132. A new approach in data reduction: proper handling of random errors and image distortions

Author

Cardiel, N., Gorgas, J., Gallego, J., Serrano, A., Zamorano, J., Garcia-Vargas, M. L., Gomez-Cambronero, P., and Filgueira, J. M.

Subjects
Astrophysics
Abstract

Data reduction procedures are aimed to minimize the impact of data acquisition imperfections on the measurement of data properties with a scientific meaning for the astronomer. To achieve this purpose, appropriate arithmetic manipulations with data and calibration frames must be performed. Furthermore, a full understanding of all the possible measurements relies on a solid constraint of their associated errors. We discuss different strategies for obtaining realistic determinations of final random errors. In particular, we highlight the benefits of considering the data reduction process as the full characterization of the raw-data frames, but avoiding, as far as possible, the arithmetic manipulation of that data until the final measure and analysis of the image properties. This philosophy will be used in the pipeline data reduction for ELMER and EMIR., Comment: 4 pages, 3 figures. Procceedings of the meeting "Science with GTC" (Granada, Spain) in 2002 February. To appear in RMAA (Conference Series)

Published
2002

134. Models for the interpretation of CaT and the blue Spectral Indices in Elliptical Nuclei

Author

Molla, M. and Garcia-Vargas, M. L.

Subjects
Astrophysics
Abstract

We present a grid of theoretical models where the calculation of absorption line spectral indices in both the blue and red wavelength ranges is done with the same evolutionary synthesis code. We have computed some of these indices: CaT, NaI, MgI in the near infrared and Mgb, Mg2, Fe52, Fe53, NaD and Hbeta, in the blue-visible range, for Single Stellar Population (SSP) of 6 different metallicities, (Z=0.0004,0.001, 0.004, 0.008, 0.02 and 0.05), and ages from 4 Myr to 20 Gyr. From the comparison of these evolutionary synthesis models with a compilation of elliptical galaxy data from the literature, we find that the observed CaT index follows the blue index rather than Mg2 as the models predict. If this implies an over-abundance [Mg/Ca] and we take into account the masses of stars which produce Mg and Ca, these stars could form in a time scale shorter than 5 Myr from the beginning of the star formation process. Alternatively, an IMF biased towards very massive stars (M > 40 Msun) at the early epoch of star formation in elliptical nuclei has to be assumed. We also suggest to revise the calculation of the nucleosynthesis yield of Magnesium. By using the diagnostic diagram CaT-Hbeta to disentangle age and metallicity in such populations, we obtain around solar abundances and a sequence of ages between 4 and 16 Gyr for the galaxy sample., Comment: 16 pages, 7 figures, to be published in Astronomy & Astrophysics

Published
2000

135. The H -> gamma gamma in Multi-Higgs doublet models

Author

Martinez, R., Rodriguez, J. -Alexis, and Vargas, M.

Subjects
High Energy Physics - Phenomenology
Abstract

We study the dominant decays of the lightest Higgs boson in models with 2 and 3 Higgs doublets, for the case when its couplings to fermions are absent at tree-level. It is found that the branching ratio for the decay $H\to \gamma\gamma$ is above the one into fermion pairs, which is evaluated also at the 1-loop level., Comment: Universidad Nacional de Colombia, Depto. de Fisica,8 pages, 2 figures

Published
2000

137. Getting bounds on the mixing angles for a non-sequential bottom quark

Author

Martinez, R., Rodriguez, J-Alexis, and Vargas, M.

Subjects
High Energy Physics - Phenomenology
Abstract

We analyze the vertex Zff in the framework of models that add a new bottom quark in a nonsequential way and we evaluate the tree level contribution to LEP/SLC data $R_{b}$, $R_{l}$ and the total Z width $\Gamma_{Z}$. We obtain bounds for the mixing angles through the experimentally allowed contour regions of the parameters $\Lambda_{L,R}$ introduced here. In order to get a more restrictive region, we also consider the experimental results for $B\to \nu \nu X$ as well., Comment: 5 pages, LateX,1 figure: eps format, 3 tables. Final version, to appear in Physical Review D

Published
1999
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142. PB0804 Eculizumab Use in the Postpartum Period for the Treatment of Pregnancy Associated Atypical Hemolytic Uremic Syndrome: Retrospective Cohort Study

Author

Rojas-Suarez, J., primary, Santacruz-arias, J., additional, Lora, L., additional, Anichiarico, W., additional, Cabeza-Morales, M., additional, Borre, D., additional, Vargas, M., additional, Ramos, E., additional, Velasquez, P., additional, Lopez, C., additional, Escobar, J., additional, Tolosa, J., additional, and Burwick, R., additional

Published
2023
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145. MOSAIC on the ELT: front-end and instrument AITV planification

Author

Bryant, Julia J., Motohara, Kentaro, Vernet, Joël R. D., El Hadi, K., Chapuis, D., Prieto, E., Martin, L., Floriot, J., Dohlen, K., Challita, Z., Rodrigues, M., Larrieu, M., Dupieux, M., Castilho, B., Lewis, I., Dejonghe, J., Araujo, R., Thurneysen, M., Perez, A., Morris, Tim, Bharmal, A. N., Hottier, C., Janssen, A., Mohamed, M., Ducret, F., Puech, M., Pello, R., Dalton, G., Garcia Vargas, M., Lynn, J., and Sanchez-Janssen, R.

Published
2024
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146. SIGMA and XTE observations of the soft X-ray transient XTEJ1755-324

Author

Goldoni, P., Vargas, M., Goldwurm, A., Paul, J., Borrel, V., Jourdain, E., Bouchet, L., Roques, J. -P., Revnivtsev, M., Churazov, E., Gilfanov, M., Sunyaev, R., Dyachkov, A., Khavenson, N., Tserenin, I., and Kuleshova, N.

Subjects
Astrophysics
Abstract

We present observations of the X-ray transient XTEJ1755-324 performed during summer 1997 with the XTE satellite and with the SIGMA hard X-ray telescope onboard the GRANAT observatory. The source was first detected in soft X-rays with XTE on July 25 1997 with a rather soft X-ray spectrum and its outburst was monitored in soft X-rays up to November 1997. On September 16 it was first detected in hard X-rays by the French soft gamma ray telescope SIGMA during a Galactic Center observation. The flux was stronger on September 16 and 17 reaching a level of about 110 mCrab in the 40-80 keV energy band. On the same days the photon index of the spectrum was determined to be alpha =-2.3 +/- 0.9 (1 sigma error) while the 40-150 keV luminosity was about 8 x 10^{36} erg/s for a distance of 8.5 kpc. SIGMA and XTE results on this source indicate that this source had an ultrasoft-like state during its main outburst and a harder secondary outburst in September. These characteristics make the source similar to X-Nova Muscae 1991, a well known black hole candidate., Comment: 19 pages LaTeX, 6 Postscript figures included, Accepted by Astrophysical Journal

Published
1998
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147. Calcium Triplet Synthesis

Author

Garcia-Vargas, M. L., Molla, M., and Bressan, A.

Subjects
Astrophysics
Abstract

We present theoretical equivalent widths for the sum of the two strongest lines of the Calcium Triplet, CaT index, in the near-IR, using evolutionary techniques and the most recent models and observational data for this feature in individual stars. We compute the CaT index for Single Stellar Populations (instantaneous burst, standard Salpeter-type IMF) at four metallicities, Z=0.004, 0.008, 0.02 (solar) and 0.05, and ranging in age from very young bursts of star formation (few Myr) to old stellar populations, up to 17 gyr, representative of globular clusters, elliptical galaxies and bulges of spirals. The interpretation of the observed equivalent widths of CaT in different stellar systems is discussed. Composite-population models are also computed as a tool to interpret the CaT detections in star-forming regions, in order to disantangle between the component due to Red Supergiants stars, RSG, and the underlying, older, population. CaT is found to be an excellent metallicity-indicator for populations older than 1 Gyr, practically independent of the age. We discuss its application to remove the age- metallicity degeneracy, characteristic of all studies of galaxy evolution based on the usual integrated indices (both broad band colors and narrow band indices). The application of the models computed here to the analysis of a sample of elliptical galaxies will be discussed in a forthcoming paper (Gorgas et al. 1998)., Comment: 17 pages, 7 figures, to be published in A&A

Published
1998
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