Lourdes Boero, Denis Poffo, Verónica Damino, Sabrina Villalba, Rubén M. Bárquez, Andrés Rodríguez, Matías Suárez, Hernán Mario Beccacece,
Migratory colonies of up to thousands or millions of Brazilian free-tailed bats (Tadarida brasiliensis) are present in temperate areas of America. The monitoring of these massive colonies is crucial to know their conservation status and to evaluate the important ecosystem services that they provide. The objectives of this study were to characterize and to monitor, with an interdisciplinary approach, one of the largest bat colonies in South America, located in La Calera (Córdoba, Argentina). This study ...
Tópico(s): Marine animal studies overview
2020 - Multidisciplinary Digital Publishing Institute | Remote Sensing
P. Costanzo, Néstor Pacenza, S. Aszpis, Sebastián Matías Suárez, Uriel Marcelo Pragier, Jorge Guillermo Stewart Usher, Miguel Vásquez Cayoja, S Iturrieta, Silvia Gottlieb, Rodolfo A. Rey, Pablo Knoblovits,
Objectives . To evaluate the characteristics of presentation, biochemical profile, and etiology of gynecomastia in adults. Methods . Medical records of 237 men aged 18-85 years with gynecomastia were evaluated. Results . Highest prevalence of gynecomastia was observed between 21 and 30 years (n = 74; 31.2%). The most common presenting complaints were aesthetic concerns (62.8%) and breast pain (51.2%). 25.3% of the subjects had a history of pubertal gynecomastia. 56.5% had bilateral gynecomastia. 39.9% were ...
Tópico(s): Sexual Differentiation and Disorders
2018 - Hindawi Publishing Corporation | BioMed Research International
P. Costanzo, Sebastián Matías Suárez, H.E. Scaglia, Cecilia Zylbersztein, León Litwak, Pablo Knoblovits,
Summary Men with type 2 diabetes mellitus (DM2) have lower testosterone levels and a higher prevalence of hypogonadism. It still remains unclear the mechanism by which there is a relationship between hypogonadism and DM2. The objective was to evaluate the hypothalamic‐pituitary‐gonadal axis at different levels in eugonadal patients with DM2. Fourteen patients with DM2 (DM2 group) and 15 subjects without DM2 (normal glucose tolerance test) as control group (CG) were included. We assessed: (i) fasting ...
Tópico(s): Ovarian function and disorders
2013 - Wiley | Andrology
P. Costanzo, Sebastián Matías Suárez, Andrea T. Kozak, Pablo Knoblovits,
Vitamin D (VD) acts on sperm motility, capacitation and survival but its role in steroidogenesis is less clear. Aims: To analyze seasonal variations in sex steroids and VD in a healthy male population.Twenty-nine healthy males, 34.0±4.8 years were included. Blood collection in winter (W) and summer (S) was performed to measure: 25OHD, total testosterone (TT), free testosterone (FT), estradiol (E2), luteinizing hormone (LH), and sex hormone binding globulin (SHBG). Testosterone/estradiol (T/E2) ratio was ...
Tópico(s): Vitamin D Research Studies
2021 - Korean Society for Sexual Medicine and Andrology | The World Journal of Men s Health
Jordi A. Matías‐Guiu, Paz Suárez‐Coalla, Vanesa Pytel, María Nieves Cabrera‐Martín, Teresa Moreno‐Ramos, Cristina Delgado‐Alonso, Alfonso Delgado‐Álvarez, Jorge Matías‐Guiu, Fernando Cuetos,
Primary progressive aphasia (PPA) is a clinical syndrome including a group of neurodegenerative disorders that present with language impairment. We hypothesised that impairment in reading prosody may be present in a subgroup of patients with PPA, and particularly non-fluent PPA (nfvPPA), because of the impairment of key brain regions involved in the pathophysiology of speech dysprosody and reading observed in these patients. Ninety-five participants were evaluated using a narrative text comprising ...
Tópico(s): Text Readability and Simplification
2020 - Elsevier BV | Cortex
Jordi A. Matías‐Guiu, Paz Suárez‐Coalla, Miguel Yus, Vanesa Pytel, Laura Hernández‐Lorenzo, Cristina Delgado‐Alonso, Alfonso Delgado‐Álvarez, Natividad Gómez‐Ruiz, Carmen Polidura, María Nieves Cabrera‐Martín, Jorge Matías‐Guiu, Fernando Cuetos,
Primary progressive aphasia (PPA) is a clinical syndrome characterized by gradual loss of language skills. This study aimed to evaluate the diagnostic capacity of a connected speech task for the diagnosis of PPA and its variants, to determine the main components of spontaneous speech, and to examine their neural correlates.A total of 118 participants (31 patients with nfvPPA, 11 with svPPA, 45 with lvPPA, and 31 healthy controls) were evaluated with the Cookie Theft picture description task and a ...
Tópico(s): Epilepsy research and treatment
2021 - Elsevier BV | Cortex
Gerardo Tusman, Cecilia M. Acosta, Sven Pulletz, Stephan H. Böhm, Adriana Scandurra, Jorge Martínez Arca, Matías Madorno, Fernando Suarez‐Sipmann,
Tópico(s): Heart Rate Variability and Autonomic Control
2018 - Springer Science+Business Media | Journal of Clinical Monitoring and Computing
María Agustina Violini, María F. Hernández, Matías Gauna, Gustavo Suárez, M.S. Conconi, Nicolás M. Rendtorff,
Aluminum titanate (Al2TiO5) materials and aluminum titanate - mullite- zirconium titanate (Al2TiO5 - 3Al2O3.2SiO2 - ZrTiO4) composite materials were successfully processed from fine commercial powders and characterized. This was achieved by zircon (ZrSiO4) addition to stoichiometric alumina - titania mixtures. Zircon addition was the principal processing variable explored. This additive stabilizes the unstable aluminum titanate phase, enhances the sintering process, restricts microcrack development and improves ...
Tópico(s): Microwave Dielectric Ceramics Synthesis
2018 - Elsevier BV | Ceramics International
Begoña Cueto, Matías Mayor, Patricia Suárez,
Tópico(s): Labor market dynamics and wage inequality
2017 - Springer Science+Business Media | Small Business Economics
Pelayo Arbués, José Baños-Pino, Matías Mayor, Patricia Suárez,
In transport economics, modeling modal choice is a fundamental key for policy makers trying to improve the sustainability of transportation systems. However, existing empirical literature has focused on short-distance travel within urban systems. This paper contributes to the limited number of investigations on mode choice in medium- and long-distance travel. The main objective of this research is to study the impacts of socio-demographic and economic variables, land-use features and trip attributes ...
Tópico(s): Transportation Planning and Optimization
2015 - Elsevier BV | Transportation Research Part A Policy and Practice
Begoña Cueto, Matías Mayor, Patricia Suárez,
Self-employment is usually associated with entrepreneurship and it is often promoted as a way of reducing unemployment. Our aim in this article is to analyse the relationship between self-employment and unemployment taking into account its spatial dimension. The entrepreneur activity in each region depends not only on its own endowment but the entrepreneurship environment may be exerted some influence. Regional Spanish data are used to obtain evidence about this relationship using a Spatial Durbin ...
Tópico(s): Migration, Ethnicity, and Economy
2015 - Taylor & Francis | Applied Economics Letters
Franco Matías Stábile, M. Piccico, María Florencia Serra, Matías Rafti, Gustavo Suárez, Nicolás M. Rendtorff,
In the present work we attempt to describe the results of the thermal behavior analysis of a commercial glaze obtained in a thermal microscope developed by the research group. At the same time, the density and the wetting angle of the glaze with an alumina surface was evaluated. Particularly the sintering temperature, the sphere, semi-sphere and fusion temperatures were also determined. These present characteristic viscosities. Afterward, by means of the de Vogel-Fulcher-Tammann equation, the viscosity ...
Tópico(s): Cultural Heritage Materials Analysis
2015 - Elsevier BV | Procedia Materials Science
María Florencia Serra, M.S. Conconi, Matías Gauna, Gustavo Suárez, E.F. Aglietti, Nicolás M. Rendtorff,
The use of industrial waste (by-products) as raw materials in the ceramic industry has been under study for decades due to the economical, energy, tax and environmental advantages. The specificity of the waste requires a basic characterization and technology thereof.
Tópico(s): Recycling and utilization of industrial and municipal waste in materials production
2015 - Taylor & Francis | Journal of Asian Ceramic Societies
Matías Suárez, Denis Poffo, Edgardo Pierobon, Agustín Martina, Jorge N. Saffe, Andrés Rodríguez,
Abstract WRF wind forecasts from four operative schemes used by OHMC (Observatorio HidroMeteorológico de Córdoba), a test scheme (WRF-E) and two daily runs with 4 km horizontal resolution were analyzed. Wind simulations were compared with measurements from eight ground stations with anemometers at 10 m high during the period from June, 2019 to June, 2020. WRF-E incorporates more vertical levels, and an activated topo_wind option. The wind speed results show that WRF overestimates wind speed at most ...
Tópico(s): Wind and Air Flow Studies
2022 - Springer Nature | Asian Journal of Atmospheric Environment
Celia Oreja‐Guevara, Ulises Gómez‐Pinedo, Julia García-López, Rafael Sánchez‐Sánchez, Roberto Valverde-Moyano, Alberto Rábano‐Gutierrez, Jordi A. Matías‐Guiu, Inés González‐Suarez, Jorge Matías‐Guiu,
Neural stem cells (NSC) are located essentially in the subventricular zone (SVZ), subgranular zone (SGZ), and along the central canal of the spinal cord. These cells can proliferate in vitro and differentiate into neurons, oligodendrocytes, and astroglia, thus contributing to repair in multiple sclerosis (MS). We conducted a pathological study to analyse neurogenic response in a patient with Marburg variant MS.We present the case of a 27-year-old immunocompetent patient with Marburg variant MS, a fulminant ...
Tópico(s): Spinal Dysraphism and Malformations
2017 - Elsevier BV | Multiple Sclerosis and Related Disorders
D. Patón, Pedro L. Delgado, Carmen Galet, Javier Muriel, María Méndez-Suárez, Matías Hidalgo‐Sánchez,
Ecoacoustics explains how animal and human behavior are affected by environmental sounds. Many studies show the marked role that sound has on people's psychological health. Our world is more and more scarce in natural sounds that produce our well-being. In this sense, we explore what acoustic parameters are related to human comfort in cities. For this purpose, 16 water sounds, with very different acoustic characteristics in the number of harmonics, fundamental frequencies, spectral information and ...
Tópico(s): Multisensory perception and integration
2019 - Elsevier BV | Building and Environment
Matías Tomás Angerami, Guadalupe Suárez, María Belén Vecchione, Natalia Laufer, Diego Ameri, Graciela Ben, Hector Pérez, Omar Sued, Horacio Salomón, María Florencia Quiroga,
Tuberculosis (TB) and HIV alter the immune system, and coinfected (HIV-TB) individuals usually present deregulations of T-lymphocytic immune response. We previously observed an increased frequency of "unconventional" CD4+CD25-FoxP3+ Treg (uTreg) population during HIV-TB disease. Therefore, we aimed to explore the phenotype and function of uTreg and conventional CD4+CD25+FoxP3+ Treg subsets (cTreg) in this context. We evaluated the expression of CD39, Programmed cell death protein 1 (PD1), (Glucocorticoid- ...
Tópico(s): HIV Research and Treatment
2017 - Frontiers Media | Frontiers in Immunology
Guadalupe Suárez, Matías Tomás Angerami, María Belén Vecchione, Natalia Laufer, Gabriela Turk, María Julia Ruiz, Viviana Mesch, Bibiana Fabre, Patricia Maidana, Diego Ameri, Pedro Cahn, Omar Sued, Horacio Salomón, Óscar Bottasso, María Florencia Quiroga,
Tuberculosis (TB) is the leading cause of death among HIV-positive patients. The decreasing frequencies of terminal effector (TTE ) CD8(+) T cells may increase reactivation risk in persons latently infected with Mycobacterium tuberculosis (Mtb). We have previously shown that dehydroepiandrosterone (DHEA) increases the protective antitubercular immune responses in HIV-TB patients. Here, we aimed to study Mtb-specific cytotoxicity, IFN-γ secretion, memory status of CD8(+) T cells, and their modulation by ...
Tópico(s): HIV Research and Treatment
2015 - Wiley | European Journal of Immunology
Matías Tomás Angerami, Guadalupe Suárez, María Fernanda Pascutti, Horacio Salomón, Óscar Bottasso, María Florencia Quiroga,
Abstract Cell-mediated immunity, cytokines induced during the specific immune response and T-cell populations are crucial factors for containing Mycobacterium tuberculosis infection. Recent reports suggest a cross-regulation between adrenal steroids (glucocorticoids and dehydroepiandrosterone, DHEA) and the function of antigen-presenting cells (APCs). Therefore, we investigated the role of adrenal hormones on the functional capacity of M. tuberculosis-induced dendritic cells (DCs). Cortisol significantly ...
Tópico(s): T-cell and B-cell Immunology
2013 - Oxford University Press | International Immunology
Rodrigo Suárez, Matías C. Ghiglione, Mauricio Calderón, Christian Sue, Joseph Martinod, Benjamin Guillaume, Diego Rojo,
The Nunatak Viedma within the Southern Patagonian Icefield has been considered as a volcanic center based on its geomorphologic features, despite the fact that field explorations by Eric Shipton determined its metamorphic nature 70 years ago. We carried out fieldwork to characterize this isolated outcrop and performed the first U-Pb dating in detrital zircons from the basement rocks located inside the Southern Patagonian Icefield. We recognized very-low grade metamorphic rocks, corresponding principally ...
Tópico(s): Geological and Geophysical Studies Worldwide
2018 - Elsevier BV | Journal of South American Earth Sciences
Patricia Suárez, Matías Mayor, Begoña Cueto,
This paper focuses on the differences in the levels of accessibility to public employment offices in the Spanish municipalities. Hence the main purpose is to evaluate the role of the public employment services in local labour markets by considering the physical distance to employment offices and the spatial structure of their catchment areas. First, we propose an accessibility measure and, second, we estimate a spatial model and test whether a higher accessibility to employment offices could contribute ...
Tópico(s): Regional Economics and Spatial Analysis
2012 - Elsevier BV | Papers of the Regional Science Association
Chaitanya Suárez-Rojas, Matías M. González Hernández, Carmelo J. León,
There is scientific consensus that human activity through whale-watching is causing an increasing amount of damage to the natural environment, which poses critical challenges to the goal of sustainability. Based on a quantitative and qualitative assessment of the scientific literature, this study calls for urgent rethinking in regards to whale-watching sustainability. A new, integrative framework for research actions built upon the concept of regenerative tourism is provided so as to lead to a more ...
Tópico(s): Cruise Tourism Development and Management
2023 - Elsevier BV | Tourism Management Perspectives
Produção Nacional
Revisado por pares
Cristiane Fraga Frozza, M A Pivel, Jaime Y. Suárez-Ibarra, Matias do Nascimento Ritter, João Carlos Coimbra,
Abstract Planktonic Foraminifera are widely used in paleoceanographic reconstructions, although studies of their trophic interactions are still rare, especially those focusing on predation. Drilling holes are the most frequent traces of bioerosion in foraminifer tests, but environmental factors that control bioerosion are not yet understood. To determine if paleoceanographic variables are associated with bioerosion rates in late Quaternary planktonic foraminifers of the western South Atlantic, geochemical ...
Tópico(s): Marine Biology and Ecology Research
2020 - Wiley | Paleoceanography and Paleoclimatology
Pedro Vega-Marcote, Micaella Dallagnolli Freitas, Pedro Álvarez Suárez, Reinaldo Matias Fleuri,
El actual modelo socioeconomico de las sociedades de los paises desarrollados es insostenible, pues lleva aparejados importantes problemas ambientales que ponen en riesgo la supervivencia de la Tierra, por lo que es necesario un nuevo modelo de sociedad que haga posible un futuro mas sostenible y, en ello, la educacion juega un papel clave. Se presenta una propuesta educativa que pretende integrar la perspectiva constructivista, concretamente el aprendizaje por investigacion; pero, ademas, intenta ...
Tópico(s): Environmental and sustainability education
2007 - University of Cádiz | Revista eureka sobre enseñanza y divulgación de las ciencias
Chaitanya Suárez-Rojas, Matías M. González Hernández, Carmelo J. León,
Whale-watching faces the dual challenge of ensuring whale welfare and preserving marine environments in coastal areas and the open ocean while providing a satisfactory tourism experience. This study shows that importance-performance analysis (IPA), in combination with cluster analysis, provides insights into how to tailor the segments for the sustainable management of whale-watching. The segmentation analysis reveals differences in the perceptions of the activity's importance between specialist and ...
Tópico(s): Cruise Tourism Development and Management
2022 - Elsevier BV | Ocean & Coastal Management
Chaitanya Suárez-Rojas, Matías M. González Hernández, Carmelo J. León,
Whale watching has long been marketed as a whale conservation-oriented form of sustainable tourism. However, inappropriate management practices are endangering whales, the marine environment, and the tourist experience. This situation highlights the need for more responsible and sustainable actions to reconcile whale protection with the various demands of tourists. This paper analyses consumers' preferences for socially responsible and green solutions for sustainable whale-watching management in ...
Tópico(s): Diverse Aspects of Tourism Research
2021 - Taylor & Francis | Journal of Sustainable Tourism
Javier Martínez-Calderón, Javier Matias-Soto, Alejandro Luque-Suárez,
To summarize (1) the emotions, cognitions, and behaviors of people who are living with musculoskeletal disorders related to symptoms and (2) the interactions of emotions, cognitions, and behaviors with the person's environment (family, social, and work roles).
Tópico(s): Fibromyalgia and Chronic Fatigue Syndrome Research
2022 - American Physical Therapy Association | Journal of Orthopaedic and Sports Physical Therapy
Produção Nacional
Revisado por pares
Rodrigo Suárez, Matías C. Ghiglione, Christian Sue, Paulo Quezada, Sandrine Roy, Diego Rojo, Mauricio Calderón,
The Upper Devonian-Upper Triassic low-grade metasedimentary rocks exposed along the South Patagonian Andes preserve the structural record of deformation associated with pre-Andean orogenic phases that predated the inception of the Jurassic rift during Gondwana fragmentation. Through the structural analysis at different scales, we identified deformation structures mainly with cratonward vergence, produced at two stages of structure development for the Bahía de la Lancha (early Carboniferous) and Río ...
Tópico(s): Geological and Geophysical Studies Worldwide
2020 - Elsevier BV | Journal of South American Earth Sciences
Matías Gauna, M.S. Conconi, Gustavo Suárez, E.F. Aglietti, Nicolás M. Rendtorff,
In this work, a simple milling sintering route (pressure less) to process dense zircon ceramics from fine (D50 0.8 ?m) zircon powders is explored. Particularly, the milling time effect (0-120 min) and the maximum sintering temperature (1400-1600?C) were studied. The sintering grade developed microstructure and Vickers hardness (Hv) were evaluated and correlated. The dissociation of silicate into (monoclinic and tetragonal) zirconia and silica was evaluated by X-ray diffraction followed by the Rietveld ...
Tópico(s): Microwave Dielectric Ceramics Synthesis
2018 - International Institute for the Science of Sintering, Beograd | Science of Sintering
Leandro Andrini, Matías Gauna, M.S. Conconi, Gustavo Suárez, Félix G. Requejo, E.F. Aglietti, Nicolás M. Rendtorff,
The thermal transformations processes of kaolinite (K) in kaolinitic clays is known to consist of a dehydroxylation into metakaolin (MK) at ≈ 600 °C, followed by the formation of a spinel type aluminosilicate (SAS) at ≈ 980 °C, and finally the development of mullite (M) at higher temperatures (1200–1300 °C). The structural characterization of these materials is generally based on X-ray diffraction (XRD) studies, where the XRD features of K and M are well defined due to their crystalline nature, but as consequence ...
Tópico(s): Recycling and utilization of industrial and municipal waste in materials production
2016 - Elsevier BV | Applied Clay Science