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Roberto Romero

Joaquín García-Gómez, Roberto Gil-Pita, Manuel Rosa-Zurera, Antonio Romero-Camacho, Jesús Antonio Jiménez-Garrido, Víctor García-Benavides
Pipeline inspection is a topic of particular interest to the companies. Especially important is the defect sizing, which allows them to avoid subsequent costly repairs in their equipment. A solution for this issue is using ultrasonic waves sensed through Electro-Magnetic Acoustic Transducer (EMAT) actuators. The main advantage of this technology is the absence of the need to have direct contact with the surface of the material under investigation, which must be a conductive one. Specifically interesting is the meander-line-coil based Lamb wave generation, since the directivity of the waves allows a study based in the circumferential wrap-around received signal...
March 7, 2018: Sensors
Renato Barboza, Flávia Afonso Lima, Aramys Silva Reis, Oscar Javier Murillo, Erika Paula Machado Peixoto, Carla Letícia Bandeira, Wesley Luzetti Fotoran, Luis Roberto Sardinha, Gerhard Wunderlich, Estela Bevilacqua, Maria Regina D'Império Lima, José Maria Alvarez, Fabio Trindade Maranhão Costa, Lígia Antunes Gonçalves, Sabrina Epiphanio, Claudio Romero Farias Marinho
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
March 6, 2018: Scientific Reports
Nardhy Gomez-Lopez, Roberto Romero, Yi Xu, Derek Miller, Yaozhu Leng, Bogdan Panaitescu, Pablo Silva, Jonathan Faro, Ali Alhousseini, Navleen Gill, Sonia S Hassan, Chaur-Dong Hsu
PROBLEM: The immune cellular composition of amniotic fluid is poorly understood. Herein, we determined: 1) the immunophenotype of amniotic fluid immune cells during the second and third trimester in the absence of intra-amniotic infection/inflammation; 2) whether amniotic fluid T cells and ILCs display different phenotypical characteristics to that of peripheral cells; and 3) whether the amniotic fluid immune cells are altered in women with intra-amniotic infection/inflammation. METHOD OF STUDY: Amniotic fluid samples (n = 57) were collected from 15 to 40 weeks of gestation in women without intra-amniotic infection/inflammation...
March 3, 2018: American Journal of Reproductive Immunology: AJRI
Roberto López-Blanco, Miguel A Velasco, Antonio Méndez-Guerrero, Juan Pablo Romero, María Dolores Del Castillo, J Ignacio Serrano, Julián Benito-León, Félix Bermejo-Pareja, Eduardo Rocon
BACKGROUND: The use of wearable technology is an emerging field of research in movement disorders. This paper introduces a clinical study to evaluate the feasibility, clinical correlation and reliability of using a system based in smartwatches to quantify tremor in essential tremor (ET) patients and check its acceptance as clinical monitoring tool. NEW METHOD: The system is based on a commercial smartwatch and an Android smartphone. An investigational Android application controls the process of recording raw data from the smartwatch three-dimensional gyroscopes...
February 23, 2018: Journal of Neuroscience Methods
Yi Xu, Roberto Romero, Derek Miller, Pablo Silva, Bogdan Panaitescu, Kevin R Theis, Afrah Arif, Sonia S Hassan, Nardhy Gomez-Lopez
PROBLEM: Pathological inflammation is causally linked to preterm labor and birth, the leading cause of neonatal morbidity and mortality worldwide. Our aims were to investigate whether (i) the newly described family of innate lymphoid cells (ILCs) was present at the human maternal-fetal interface and (ii) ILC inflammatory subsets were associated with the pathological process of preterm labor. METHODS OF STUDY: Decidual leukocytes were isolated from women with preterm or term labor as well as from gestational age-matched non-labor controls...
February 19, 2018: American Journal of Reproductive Immunology: AJRI
Maria Voigt, Serge A Wich, Marc Ancrenaz, Erik Meijaard, Nicola Abram, Graham L Banes, Gail Campbell-Smith, Laura J d'Arcy, Roberto A Delgado, Andi Erman, David Gaveau, Benoit Goossens, Stefanie Heinicke, Max Houghton, Simon J Husson, Ashley Leiman, Karmele Llano Sanchez, Niel Makinuddin, Andrew J Marshall, Ari Meididit, Jukka Miettinen, Roger Mundry, Musnanda, Nardiyono, Anton Nurcahyo, Kisar Odom, Adventus Panda, Didik Prasetyo, Aldrianto Priadjati, Purnomo, Andjar Rafiastanto, Anne E Russon, Truly Santika, Jamartin Sihite, Stephanie Spehar, Matthew Struebig, Enrique Sulbaran-Romero, Albertus Tjiu, Jessie Wells, Kerrie A Wilson, Hjalmar S Kühl
Unsustainable exploitation of natural resources is increasingly affecting the highly biodiverse tropics [1, 2]. Although rapid developments in remote sensing technology have permitted more precise estimates of land-cover change over large spatial scales [3-5], our knowledge about the effects of these changes on wildlife is much more sparse [6, 7]. Here we use field survey data, predictive density distribution modeling, and remote sensing to investigate the impact of resource use and land-use changes on the density distribution of Bornean orangutans (Pongo pygmaeus)...
February 12, 2018: Current Biology: CB
José de Jesús Sánchez González, José Ariel Ruiz Corral, Guillermo Medina García, Gabriela Ramírez Ojeda, Lino De la Cruz Larios, James Brendan Holland, Roberto Miranda Medrano, Giovanni Emmanuel García Romero
Adaptation of crops to climate change has motivated an increasing interest in the potential value of novel traits from wild species; maize wild relatives, the teosintes, harbor traits that may be useful to maize breeding. To study the ecogeographic distribution of teosinte we constructed a robust database of 2363 teosinte occurrences from published sources for the period 1842-2016. A geographical information system integrating 216 environmental variables was created for Mexico and Central America and was used to characterize the environment of each teosinte occurrence site...
2018: PloS One
Marion I van den Heuvel, Elise Turk, Janessa H Manning, Jasmine Hect, Edgar Hernandez-Andrade, Sonia S Hassan, Roberto Romero, Martijn P van den Heuvel, Moriah E Thomason
Advances in neuroimaging and network analyses have lead to discovery of highly connected regions, or hubs, in the connectional architecture of the human brain. Whether these hubs emerge in utero, has yet to be examined. The current study addresses this question and aims to determine the location of neural hubs in human fetuses. Fetal resting-state fMRI data (N = 105) was used to construct connectivity matrices for 197 discrete brain regions. We discovered that within the connectional functional organization of the human fetal brain key hubs are emerging...
February 6, 2018: Developmental Cognitive Neuroscience
Carlos E Cuervo-Lozano, Adolfo Soto-Domínguez, Odila Saucedo-Cárdenas, Roberto Montes-de-Oca-Luna, Sergio Alonso-Romero, María Del Consuelo Mancías-Guerra, Eduardo Álvarez-Lozano
Treatment of massive bone defects is one of the most difficult problems to solve in orthopedics. At present, there is no consensus on the best way to resolve these problems. The aim of our study was to evaluate the effect of a three-dimensional bioimplant over massive bone defects, and to analyse if it improves the speed and quality of integration in recipient bone compared to allograft treatment. Fifteen female lambs with massive bone defects, surgically created in their tibias, were randomly divided into three groups of five lambs each: Group I -treated with the bioimplant; Group 2 -treated with the bioimplant plus nucleated cells of autologous bone marrow; Group 3 -treated with a frozen allograft...
February 2018: Tissue & Cell
Roberto Romero
No abstract text is available yet for this article.
February 2018: American Journal of Obstetrics and Gynecology
Adi L Tarca, Roberto Romero, Dereje W Gudicha, Offer Erez, Edgar Hernandez-Andrade, Lami Yeo, Gaurav Bhatti, Percy Pacora, Eli Maymon, Sonia S Hassan
BACKGROUND: The assessment of fetal growth disorders requires a standard. Current nomograms for the assessment of fetal growth in African American women have been derived either from neonatal (rather than fetal) biometry data or have not been customized for maternal ethnicity, weight, height, and parity and fetal sex. OBJECTIVE: We sought to (1) develop a new customized fetal growth standard for African American mothers; and (2) compare such a standard to 3 existing standards for the classification of fetuses as small (SGA) or large (LGA) for gestational age...
February 2018: American Journal of Obstetrics and Gynecology
Russell L Deter, Wesley Lee, Lami Yeo, Offer Erez, Uma Ramamurthy, Medha Naik, Roberto Romero
Fetal growth abnormalities can pose significant consequences on perinatal morbidity and mortality of nonanomalous fetuses. The most widely accepted definition of fetal growth restriction is an estimated fetal weight less than the 10th percentile for gestational age according to population-based criteria. However, these criteria do not account for the growth potential of an individual fetus, nor do they effectively separate constitutionally small fetuses from ones that are malnourished. Furthermore, conventional approaches typically evaluate estimated fetal weight at a single time point, rather than using serial scans, to evaluate growth...
February 2018: American Journal of Obstetrics and Gynecology
Roberto Romero, John Kingdom, Russell Deter, Wesley Lee, Anthony Vintzileos
No abstract text is available yet for this article.
February 2018: American Journal of Obstetrics and Gynecology
Roberto Romero, Adi L Tarca
No abstract text is available yet for this article.
February 2018: American Journal of Obstetrics and Gynecology
Marina López-García, Roberto Romero-González, Antonia Garrido Frenich
A new analytical method based on ultra-high performance liquid chromatography (UHPLC) coupled to Orbitrap high resolution mass spectrometry (Orbitrap-HRMS) has been developed for the determination of steroid hormones (hydrocortisone, cortisone, progesterone, prednisone, prednisolone, testosterone, melengesterol acetate, hydrocortisone-21-acetate, cortisone-21-acetate, testosterone propionate, 17α-methyltestosterone, 6α-methylprednisolone and medroxyprogesterone) and their metabolite (17α-hydroxyprogesterone) in three meat samples (chicken, pork and beef)...
January 31, 2018: Journal of Chromatography. A
Vicente Molina, Alejandro Bachiller, Rodrigo de Luis, Alba Lubeiro, Jesús Poza, Roberto Hornero, Joan Francesc Alonso, Miguel Angel Mañanas, Patricia Marqués, Sergio Romero
BACKGROUND: The study of cerebral underpinnings of schizophrenia may benefit from the high temporal resolution of electromagnetic techniques, but its spatial resolution is low. However, source imaging approaches such as low-resolution brain electromagnetic tomography (LORETA) allow for an acceptable compromise between spatial and temporal resolutions. METHODS: We combined LORETA with 32 channels and 3-Tesla diffusion magnetic resonance (Dmr) to study cerebral dysfunction in 38 schizophrenia patients (17 first episodes, FE), compared to 53 healthy controls...
February 2, 2018: European Archives of Psychiatry and Clinical Neuroscience
Valeria Hernandez, Rafael A Barrio, Mariana Benítez, Naomi Nakayama, José Roberto Romero-Arias, Carlos Villarreal Lujan
Intracellular polarisation of auxin efflux carriers is crucial for understanding how auxin gradients form in plants. The polarisation dynamics of auxin efflux carriers PIN-FORMED (PIN) depends on both biomechanical forces as well as chemical, molecular and genetic factors. Biomechanical forces have shown to affect the localisation of PIN transporters to the plasma membrane. We propose a physico-genetic module of PIN polarisation that integrates biomechanical, molecular, and cellular processes as well as their non-linear interactions...
February 2, 2018: Physical Biology
Derek Miller, Roberto Romero, Ronald Unkel, Yi Xu, Felipe Vadillo-Ortega, Sonia S Hassan, Nardhy Gomez-Lopez
Neonatal CD71+ erythroid cells are thought to have immunosuppressive functions. Recently, we demonstrated that CD71+ erythroid cells from neonates born to women who underwent spontaneous preterm labor (PTL) are reduced to levels similar to those of term neonates; yet, their functional properties are unknown. Herein, we investigated the functionality of CD71+ erythroid cells from neonates born to women who underwent spontaneous preterm or term labor. CD71+ erythroid cells from neonates born to women who underwent PTL displayed a similar mRNA profile to that of those from term neonates...
February 1, 2018: Journal of Leukocyte Biology
Fabricio Bragança Silva, Walckiria Garcia Romero, Ana Ligia Rodrigues de Abreu Carvalho, Gleyce Ariadne Alves Souza, Erick Roberto Gonçalves Claudio, Glaucia Rodrigues Abreu
There has been an increase in deaths from cardiovascular diseases following breast cancer therapy. Evidence has shown that this outcome is, in part, associated with cardiotoxicity induced by the chemotherapeutic drugs and the increase in oxidative stress. The aim of this study was to evaluate the effects of chemotherapy and hormone therapy with tamoxifen on the biomarkers of cardiac injury and oxidative stress in women with breast cancer.Thirty women were followed-up for 1 year and were divided into 3 groups according to the treatment protocol: women treated only with tamoxifen and clinical follow up for 12 months (Tam, n = 10); women treated only with chemotherapy for 6 months with clinical follow up for an additional 6-month period (Chemo, n = 10); and women who received chemotherapy for 6 months followed by a 6-month period only with tamoxifen therapy and clinical follow up (Chemo + Tam, n = 10)...
November 2017: Medicine (Baltimore)
Guillermo Aldave, Marisol Gonzalez-Huarriz, Angel Rubio, Juan Pablo Romero, Datta Ravi, Belén Miñana, Mar Cuadrado-Tejedor, Ana García-Osta, Roeland Verhaak, Enric Xipell, Naiara Martinez-Vélez, Arlet Acanda de la Rocha, Montserrat Puigdelloses, Marc García-Moure, Miguel Marigil, Jaime Gállego Pérez-Larraya, Oskar Marín-Bejar, Maite Huarte, Maria Stella Carro, Roberto Ferrarese, Cristobal Belda-Iniesta, Angel Ayuso, Ricardo Prat-Acín, Fernando Pastor, Ricardo Díez-Valle, Sonia Tejada, Marta M Alonso
Background: Glioblastoma, the most aggressive primary brain tumor, is a genetically heterogeneous tumor. Alternative spicing (AS) plays a key role in numerous pathologies, including cancer. The objective of our study was to determine whether aberrant AS could play a role in the malignant phenotype of glioma and to understand the mechanism underlying its aberrant regulation. Methods: We obtained surgical samples from patients with glioblastoma who underwent 5-aminolevulinic fluorescence-guided surgery...
January 24, 2018: Neuro-oncology
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