Limpar
1.159 resultados

Acesso aberto

Tipo do recurso

Ano de criação

Produção nacional

Revisado por pares

Áreas

Idioma

Editores

Jornais Acesso aberto

By Hugh Noyes Parliamentary Correspondent Westminster, By Paul Routledge Labour Editor, From Ian Murray, By Clifford Longley Religious Affairs Correspondent, By Clifford Webb, By John Whitmore, By Pearce Wright Science Editor, From Our Correspondent, By Michael Hatfield Political Reporter, By Fred Emery Political Editor, By George Clark Political Correspondent, Charles McKean, By Hugh Clayton, By Marcel Berlins Legal Correspondent, By Philip Howard, By Stewart Tendler, From Arthur Osman Blackpool, By Diana Geddes Education Correspondent, By Our Religious Affairs Correspondent, By Our Labour Editor, By John Groser, By John Roper Health Services Correspondent, By Peter Hennessy, By Our Health Services Correspondent, By Christopher Warman Local Government Correspondent, From Patricia Clough, From Harry Debelius, From Henry Stanhope Defence Correspondent, From Charles Hargrove, From Nicholas Ashford, From Our Own Correspondent, By Peter Strafford, From Michael Leapman, From Richard Wigg, From Peter Strafford, By David Watts, From Patrick Brogan, From Moshe Brilliant, John Higgins, Irving Wardle, Ned Chaillet, David Robinson, Paul Griffiths, William Mann, From John Hennessy, By Rex Bellamy Tennis Correspondent, By Beth Barrington Haynes, By Norman Fox Football Correspondent, By John Woodcock Cricket Correspondent, By Cliff Temple Athletics Correspondent, By Jerome Caminada, By John Nicholls, From John Blunsden, By Pamela MacGregor-Morris, By Michael Phillips Racing Correspondent, Ralph Whitlock, Bernard Levin, PHS, Timothy Raison, Peter Hazelhurst, PETER LLEWELLYN, , WILLIAM PILE, , NOEL S. PAUL, Director, , S. P. OSMOND, , C. A. ASHIOTIS, , JORGE A. BOLANOS, , PETER MANDELSON, , MOSHE FORMAN, , PAMELA HOWE, , SUE SLIPMAN, , C. E. ALLEN, , G. M. THOMPSON, , J. R. P. HAMMOND, , GAGE., DENYS LASDUN, , RICHARD T. POMEROY, , Scyld Berry, By Norman Hammond, By Huon Mallalieu, By Margaret Stone, By David Blake Economics Correspondent, By Melvyn Westlake, By Christopher Wilkins, By Our Financial Staff, By Michael Baily Shipping Correspondent, By Roger Vielvoye, By Donald Macintyre, By Patricia Tisdall, From Michael Hornsby, From John Huxley, By Malcolm Brown, B. BATTLEY, , R. J. POST, , H. H. CRANN, , PETER H. ACTON, , BY THE FINANCIAL EDITOR, Kenneth Owen, Technology Correspondent, From Frank Vogl, By Maurice Corina Industrial Editor, By Peter Hill, By Edward Townsend, By Bryan Appleyard, By Tony May, Gerald Ely, By Ray Maughan, Ray Maughan, By Ronald Kershaw,

... fertilizers by 5.5pc, Remedial measures work at Luis Gordon, Fidelity dips 25 pc but set to ...

1978 - Gale Group | TDA

Revisão Acesso aberto Revisado por pares

Luis M. Bolaños, Luis E. Servín-Garcidueñas, Esperanza Martı́nez-Romero,

The genus Spiroplasma comprises wall-less, low-GC bacteria that establish pathogenic, mutualistic and commensal symbiotic associations with arthropods and plants. This review focuses on the symbiotic relationships between Spiroplasma bacteria and arthropod hosts in the context of the available genomic sequences. Spiroplasma genomes are reduced and some contain highly repetitive plectrovirus-related sequences. Spiroplasma's diversity in viral invasion susceptibility, virulence factors, substrate ...

Tópico(s): Plant Virus Research Studies

2014 - Oxford University Press | FEMS Microbiology Ecology

Artigo Revisado por pares

Antonia Garrido‐Frenich, Roberto Romero‐González, José Luis Martı́nez-Vidal, Patricia Plaza‐Bolaños, Luis Cuadros-Rodrı́guez, M.A. Herrera-Abdo,

The assessment of the recovery factor with the analyte concentration in meat samples has been studied for the determination of organochlorine and organophosphorus pesticides in meat by gas chromatography-triple quadrupole mass spectrometry (GC–MS/MS). For that purpose, recent IUPAC recommendations, which distinguishes between two terms, recovery factor and apparent recovery, have been followed. Besides, the systematic error due to the matrix effect has been evaluated by a new term recently proposed, ...

Tópico(s): Pharmacological Effects and Assays

2006 - Elsevier BV | Journal of Chromatography A

Artigo Acesso aberto Revisado por pares

Rafael Bojalil, María Teresa Mata-González, Fausto Sánchez‐Muñoz, Yepci Yee, Iván Argueta, Lucía Bolaños, Luis Manuel Amezcua-Guerra, Tanya A. Camacho-Villegas, Edna Sánchez‐Castrejón, Walter Jakob García-Ubbelohde, Alexei F. Licea-Navarro, Ricardo Márquez-Velasco, Jorge Paniagua-Solís,

Abstract Background In sepsis, tumor necrosis factor (TNF) is the key factor triggering respiratory burst, tissue injury and disseminated coagulation. Anti-TNF strategies based on monoclonal antibodies or F(ab’) 2 fragments have been used in sepsis with contradictory results. Immunoglobulin new antigen receptors (IgNAR) are a unique subset of antibodies consisting of five constant ( C NAR) and one variable domains ( V NAR). V NAR domains are the smallest, naturally occurring, antibody-based immune recognition ...

Tópico(s): Influenza Virus Research Studies

2013 - BioMed Central | BMC Immunology

Artigo Revisado por pares

Patricia Pérez‐Romo, Cándido Aguilar-Barrera, Juan Navarrete‐Bolaños, Luis M. Rodríguez-Otal, Francisco Hernández Beltrán, José Jean Fripiat,

γ-Alumina-based HDT catalysts used as silicon traps adsorb more efficiently silicon compounds from naphtha till saturation, which occurs at a relatively low concentration (5–10 wt%). As the silicon content in the catalyst increases, the surface is progressively deactivated, mainly affecting the hydrodenitrogenation and hydrogenation activity. According to the aforementioned, the deactivation of HDT catalysts was investigated by means of a fraction of naphtha doped with silicone oil with different ...

Tópico(s): Mesoporous Materials and Catalysis

2012 - Elsevier BV | Applied Catalysis A General

Artigo Revisado por pares

Luis Bolano,

... to the subject of this article. Reprint requests: Luis E. Bolano, MD, University of Kentucky. Kentucky Clinic K-401, ...

Tópico(s): Bone fractures and treatments

1994 - Elsevier BV | The Journal Of Hand Surgery

Artigo Revisado por pares

Ronald Eduardo Díaz Bolaños, Luis Cerdas, Richard T. Taylor,

R. Bolaños, L. Cerdas, and R. Taylor. The production and characteristics of a coral snake (Micrurus mipartitus hertwigi) antivenin. Toxicon13, 139–142, 1975—An antivenin against Micrurus mipartitus hertwigi was prepared in a horse employing subcutaneous inoculations of venom in sodium alginate and Freund's complete adjuvant. The antivenin, refined with ammonium sulfate and freeze dried, neutralizes (per ml) 450 μg of the homologous venom, 100–150 μg of M. m. anomalus venom from Colombia, 250 μg of ...

Tópico(s): Lipid Membrane Structure and Behavior

1975 - Elsevier BV | Toxicon

Artigo Revisado por pares

Luis Bolaños, Miguel Redondo‐Nieto, Ildefonso Bonilla, Luis Gabriel Wall,

The essentiality of boron (B) for nitrogen fixation in heterocystous cyanobacteria and rhizobial symbioses has been widely established. However, nothing is known about the possible involvement of the micronutrient in actinorhizal symbioses. Therefore, the effect of boron (B) deficiency on the establishment of the Discaria trinervis‐Frankia BCU110501 symbiosis was investigated. Nodulation was diminished in B‐deficient D. trinervis or in plants inoculated with Frankia grown in the absence of B. These ...

Tópico(s): Plant Micronutrient Interactions and Effects

2002 - Wiley | Physiologia Plantarum

Artigo Acesso aberto Revisado por pares

Hadi Nobarı, Elena Mainer-Pardos, José Carmelo Adsuar, Juan Manuel Franco-García, Jorge Rojo-Ramos, Marco Cossío-Bolaños, Luis Urzua-Alul, Jorge Pérez‐Gómez,

The purpose of this study was to analyze differences between endocrine markers in soccer players, based on playing positions, and correlations between endocrine markers (testosterone, cortisol, growth hormone, and insulin-like growth factor-1), with accumulated workload training and fitness parameters [maximal oxygen uptake (VO2max), countermovement jump (CMJ), and isometric maximal strength (1-RM) of the knee for hamstring (ISH) and quadriceps (ISQ) muscles] during early-, mid-, and end-seasons. Twenty- ...

Tópico(s): Exercise and Physiological Responses

2021 - Frontiers Media | Frontiers in Psychology

Artigo Brasil Produção Nacional Revisado por pares

Víctor Montalvo, Carolina Sáenz‐Bolaños, Luis Diego Alfaro, Juan Carlos Hinojosa Cruz, Flavio H. Guimarães-Rodrigues, Eduardo Carrillo, Chris Sutherland, Todd K. Fuller,

Abstract Temporal and spatial scarcity of water in semi-arid and seasonal ecosystems often leads to changes in movements and behaviour of large vertebrates, and in the neotropics this dynamic is poorly understood due to logistical and methodological limitations. Here we used camera trapping to elucidate variation in patterns of seasonal use of waterholes and pathways by 10 large-mammal and four large-bird species in the dry forest of north-western Costa Rica. From 2011 to 2015, we deployed trail ...

Tópico(s): Wildlife-Road Interactions and Conservation

2019 - Cambridge University Press | Journal of Tropical Ecology

Artigo Revisado por pares

José Luis Fernández Moreno, Antonia Garrido Frenich, Patricia Plaza‐Bolaños, José Luis Martı́nez Vidal,

Abstract A new multiresidue method has been developed and validated for the determination of more than 140 pesticide residues in cucumber and orange by gas chromatography coupled to triple quadrupole mass spectrometry (GC–QqQ‐MS/MS) in a single run of 25.50 min. The triple quadrupole (QqQ) analyzer simultaneously operated in the selected reaction monitoring (SRM) and selected ion monitoring (SIM) modes, acquiring two or three transitions per compound. Samples were extracted by the application of a single‐ ...

Tópico(s): Analytical Chemistry and Chromatography

2008 - Wiley | Journal of Mass Spectrometry

Artigo Acesso aberto Revisado por pares

Ariana Alejandra Chacón-Aponte, Érika Andrea Durán-Vargas, Jaime Adolfo Arévalo-Carrillo, Iván David Lozada-Martínez, María Paz Bolaño-Romero, Luis Rafael Moscote‐Salazar, Pedro Grille, Tariq Janjua,

The brain-lung interaction can seriously affect patients with traumatic brain injury, triggering a vicious cycle that worsens patient prognosis. Although the mechanisms of the interaction are not fully elucidated, several hypotheses, notably the “blast injury” theory or “double hit” model, have been proposed and constitute the basis of its development and progression. The brain and lungs strongly interact via complex pathways from the brain to the lungs but also from the lungs to the brain. The main ...

Tópico(s): Cardiac Arrest and Resuscitation

2022 - Korean Society of Critical Care Medicine | Acute and Critical Care

Artigo Acesso aberto Revisado por pares

Isaac Maestro‐Gaitán, Sara Granado‐Rodríguez, M.I. Orús, Javier Matías, Verónica Cruz, Luis Bolaños, María Reguera,

Within the current climate context, freshwater resources have become scarce. Agriculture, especially in rain-fed conditions, should deal with the need of increasing yields to contribute to food security under limiting water availability. Exploring underutilized crops such as Chenopodium quinoa (quinoa) has become a unique opportunity as some of these crops possess the ability to tolerate several abiotic stresses, including drought. In line with this, this work aimed at evaluating the genotype-dependent ...

Tópico(s): Seed and Plant Biochemistry

2022 - Elsevier BV | Environmental and Experimental Botany

Revisão Acesso aberto Revisado por pares

Yelson Alejandro Picón‐Jaimes, Iván David Lozada-Martínez, Javier Esteban Orozco-Chinome, Lina María Montaña-Gómez, María Paz Bolaño-Romero, Luis Rafael Moscote‐Salazar, Tariq Janjua, Sabrina Rahman,

End-of-life care is an increasingly relevant topic due to advances in biomedical research and the establishment of new disciplines in evidence-based medicine and bioethics. Euthanasia and assisted suicide are two terms widely discussed in medicine, which cause displeasure on many occasions and cause relief on others. The evolution of these terms and the events associated with their study have allowed the evaluation of cases that have established useful definitions for the legal regulation of palliative ...

Tópico(s): Patient Dignity and Privacy

2022 - Wolters Kluwer | Annals of Medicine and Surgery

Artigo Acesso aberto Revisado por pares

Javier Dorado Chaparro, Jesús Fernández-Bermejo Ruiz, María J. Santofimia, Cristina Bolaños Peño, Luis Unzueta, Meritxell Garcia Perea, Xavier García, Félix J. Villanueva, Sonja Grigoleit, Juan Carlos López,

The benefits that technology can provide in terms of health and support for independent living are in many cases not enough to break the barriers that prevent older adults from accepting and embracing technology. This work proposes a hardware and software platform based on a smart mirror, which is equipped with a set of digital solutions whose main focus is to overcome older adults' reluctance to use technology at home and wearable devices on the move. The system has been developed in the context ...

Tópico(s): Smart Cities and Technologies

2021 - Multidisciplinary Digital Publishing Institute | Sensors

Artigo Acesso aberto Revisado por pares

Sara Granado‐Rodríguez, Nieves Aparicio, Javier Matías, Luís F. Pérez-Romero, Isaac Maestro‐Gaitán, Irene Gracés, Justo Javier Pedroche, Claudia Mónika Haros, Nieves Fernández‐García, Joaquín Navarro del Hierro, Diana Martín, Luis Bolaños, María Reguera,

Chenopodium quinoa Willd (quinoa) has acquired an increased agronomical and nutritional relevance due to the capacity of adaptation to different environments and the exceptional nutritional properties of their seeds. These include high mineral and protein contents, a balanced amino acid composition, an elevated antioxidant capacity related to the high phenol content, and the absence of gluten. Although it is known that these properties can be determined by the environment, limited efforts have been ...

Tópico(s): Agriculture Sustainability and Environmental Impact

2021 - Frontiers Media | Frontiers in Plant Science

Artigo Acesso aberto Revisado por pares

Luis Bolaños, Dongsheng Xiao, Nancy L. Ford, Jeff M. LeDue, Pankaj Gupta, Carlos Doebeli, Hao Hu, Helge Rhodin, Timothy H. Murphy,

We developed a three-dimensional (3D) synthetic animated mouse based on computed tomography scans that is actuated using animation and semirandom, joint-constrained movements to generate synthetic behavioral data with ground-truth label locations. Image-domain translation produced realistic synthetic videos used to train two-dimensional (2D) and 3D pose estimation models with accuracy similar to typical manual training datasets. The outputs from the 3D model-based pose estimation yielded better definition ...

Tópico(s): Cell Image Analysis Techniques

2021 - Nature Portfolio | Nature Methods

Artigo Acesso aberto Revisado por pares

Timothy H. Murphy, Nicholas J. Michelson, Jamie D. Boyd, Tony Fong, Luis Bolaños, David Bierbrauer, Teri Siu, Matilde Balbi, Federico Bolaños, Matthieu P. Vanni, Jeff M. LeDue,

We report improved automated open-source methodology for head-fixed mesoscale cortical imaging and/or behavioral training of home cage mice using Raspberry Pi-based hardware. Staged partial and probabilistic restraint allows mice to adjust to self-initiated headfixation over 3 weeks’ time with ~50% participation rate. We support a cue-based behavioral licking task monitored by a capacitive touch-sensor water spout. While automatically head-fixed, we acquire spontaneous, movement-triggered, or licking ...

Tópico(s): Photoreceptor and optogenetics research

2020 - eLife Sciences Publications Ltd | eLife

Artigo Acesso aberto Revisado por pares

Laura Poza‐Viejo, Isidro Abreu, Mary Paz González‐García, Paúl Allauca, Ildefonso Bonilla, Luis Bolaños, María Reguera,

Significant advances have been made in the last years trying to identify regulatory pathways that control plant responses to boron (B) deficiency. Still, there is a lack of a deep understanding of how they act regulating growth and development under B limiting conditions. Here, we analyzed the impact of B deficit on cell division leading to root apical meristem (RAM) disorganization. Our results reveal that inhibition of cell proliferation under the regulatory control of cytokinins (CKs) is an early ...

Tópico(s): Aluminum toxicity and tolerance in plants and animals

2018 - Elsevier BV | Plant Science

Artigo

Limael E. Rodríguez, Aihab Aboukheir-Aboukheir, Ricardo Figueroa-Vicente, Hiram Soler-Bernardini, Guillermo Bolaños-Ávila, Luis J. Torruella-Bartolomei, Anthony J. Comerota, Jorge Martínez-Trabal,

ObjectiveHybrid operative thrombectomy (HOT) is a novel technique for the treatment of acute iliofemoral deep venous thrombosis (IFDVT) and is an alternative to percutaneous techniques (PTs) that use thrombolytics. In this study, we compare perioperative and intermediate outcomes of HOT vs PT as interventions for early thrombus removal.MethodsFrom July 2008 to May 2015, there were 71 consecutive patients who were treated with either PT (n = 31) or HOT (n = 40) for acute or subacute single-limb IFDVT. HOT ...

Tópico(s): Diagnosis and Treatment of Venous Diseases

2017 - Elsevier BV | Journal of Vascular Surgery Venous and Lymphatic Disorders

Artigo Revisado por pares

Alessio Signori, Guillermo Izquierdo, Alessandra Lugaresi, Raymond Hupperts, François Grand’Maison, Patrizia Sola, Dana Horáková, Eva Havrdová, Alexandre Prat, Marc Girard, Pierre Duquette, Cavit Boz, Pierre Grammond, Murat Terzi, Bhim Singhal, Raed Alroughani, Thor Petersen, Cristina Ramo‐Tello, Celia Oreja‐Guevara, Daniele Spitaleri, Vahid Shaygannejad, Helmut Butzkueven, Tomáš Kalinčík, Vilija Jokubaitis, Mark Slee, R. Fernandez Bolanos, José Luis Sánchez-Menoyo, Eugenio Pucci, Franco Granella, Jeannette Lechner‐Scott, Gerardo Iuliano, Stella Hughes, Roberto Bergamaschi, Bruce Taylor, Freek Verheul, Maria Edite Rio, Maria Pia Amato, Seyed Aidin Sajedi, Nastaran Majdinasab, Vincent Van Pesch, Maria Pia Sormani, Maria Trojano,

Background: Several natural history studies on primary progressive multiple sclerosis (PPMS) patients detected a consistent heterogeneity in the rate of disability accumulation. Objectives: To identify subgroups of PPMS patients with similar longitudinal trajectories of Expanded Disability Status Scale (EDSS) over time. Methods: All PPMS patients collected within the MSBase registry, who had their first EDSS assessment within 5 years from onset, were included in the analysis. Longitudinal EDSS scores ...

Tópico(s): RNA regulation and disease

2017 - SAGE Publishing | Multiple Sclerosis Journal

Artigo Acesso aberto Revisado por pares

Matilde Balbi, Matthieu P. Vanni, Gergely Silasi, Y Sekino, Luis Bolaños, Jeffrey LeDue, Timothy H. Murphy,

Despite advances in experimental stroke models, confounding factors such as anesthetics used during stroke induction remain. Furthermore, imaging of blood flow during stroke is not routinely done. We take advantage of in vivo bihemispheric transcranial windows for longitudinal mesoscopic imaging of cortical function to establish a protocol for focal ischemic stroke induction in target brain regions using photothrombosis in awake head-fixed mice. Our protocol does not require any surgical steps at ...

Tópico(s): Neural dynamics and brain function

2017 - SPIE | Neurophotonics

Artigo Revisado por pares

Jorge L. Orbay, David Ring, Amir Reza Kachooei, José Santiago-Figueroa, Luis Bolano, Miguel A. Pirela-Cruz, Michael R. Hausman, Rick F. Papandrea,

Background Our primary efficacy objective was to evaluate the effectiveness of the internal joint stabilizer of the elbow (IJS-E) in maintaining concentric location of the elbow during and after removal of the device in the treatment of persistent or recurrent instability after elbow fracture or dislocations, or both. The secondary study objectives were to assess range of motion, Broberg-Morrey functional score, Broberg-Morrey categorical rating, the Disabilities of the Arm, Shoulder and Hand score, ...

Tópico(s): Shoulder Injury and Treatment

2016 - Elsevier BV | Journal of Shoulder and Elbow Surgery

Artigo Revisado por pares

Noelia López-Gutiérrez, Roberto Romero‐González, Patricia Plaza‐Bolaños, José Luis Martı́nez Vidal, Antonia Garrido Frenich,

A method has been developed and validated for the simultaneous detection and quantification of phytochemicals in nutraceutical products obtained from green tea. For that purpose, ultra-high performance liquid chromatography coupled to single-stage Orbitrap high resolution mass spectrometry (UHPLC–Orbitrap-MS) has been used. A database containing 37 compounds has been used for the detection and identification of the target compounds. The developed methodology was based on solid–liquid extraction, ...

Tópico(s): Phytoestrogen effects and research

2014 - Elsevier BV | Food Chemistry

Artigo Revisado por pares

Isidro Abreu, Laura Poza‐Viejo, Ildefonso Bonilla, Luis Bolaños,

The development of Arabidopsis thaliana was dramatically altered within few hours following boron (B) deprivation. This effect was particularly evident in the apical root meristem. The essentiality of boron in plants has been clearly linked to its structural role in the cell wall, however the diversity and rapidity alterations of plant organogenesis when the micronutrient is absent suggest that B deficiency could also affect gene regulation during plant development. Therefore, the effect of B deficiency ...

Tópico(s): Aluminum toxicity and tolerance in plants and animals

2014 - Elsevier BV | Plant Physiology and Biochemistry

Artigo Revisado por pares

Nieves Barco-Bonilla, Roberto Romero‐González, Patricia Plaza‐Bolaños, José Luis Martı́nez Vidal, Antonia Garrido Frenich,

The occurrence of priority organic pollutants in wastewater (WW) effluents was evaluated in a semi-arid area, characterized by a high agricultural and tourism activity, as Almeria province (Southeastern Spain). Twelve wastewater treatment plants (WWTPs) were sampled in three campaigns during 2011, obtaining a total of 33 WW samples, monitoring 226 compounds, including pesticides, polycyclic aromatic hydrocarbons (PAHs), phenolic compounds and volatile organic compounds (VOCs). Certain banned organochlorine ...

Tópico(s): Environmental Toxicology and Ecotoxicology

2013 - Elsevier BV | The Science of The Total Environment