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https://www.readbyqxmd.com/read/28926984/n-doped-carbon-xerogels-as-pt-support-for-the-electro-reduction-of-oxygen
#1
Cinthia Alegre, David Sebastián, María E Gálvez, Estela Baquedano, Rafael Moliner, Antonino S Aricò, Vincenzo Baglio, María J Lázaro
Durability and limited catalytic activity are key impediments to the commercialization of polymer electrolyte fuel cells. Carbon materials employed as catalyst support can be doped with different heteroatoms, like nitrogen, to improve both catalytic activity and durability. Carbon xerogels are nanoporous carbons that can be easily synthesized in order to obtain N-doped materials. In the present work, we introduced melamine as a carbon xerogel precursor together with resorcinol for an effective in-situ N doping (3-4 wt % N)...
September 17, 2017: Materials
https://www.readbyqxmd.com/read/28926850/spyglass-percutaneous-transhepatic-cholangioscopy-guided-lithotripsy-of-a-large-intrahepatic-stone
#2
Tomazo Franzini, Leandro Cardarelli-Leite, Estela Regina Ramos Figueira, Flávio Morita, Fernanda Uchiyama Golghetto Domingos, Francisco Cesar Carnevale, Eduardo Guimarães Hourneaux de Moura
No abstract text is available yet for this article.
September 19, 2017: Endoscopy
https://www.readbyqxmd.com/read/28922328/minor-salivary-gland-transplantation-for-severe-dry-eyes
#3
Tais Hitomi Wakamatsu, Ana Estela Besteti Pires Ponce SantʼAnna, Priscila Cardoso Cristovam, Venâncio Avancini Ferreira Alves, Alda Wakamatsu, José Alvaro Pereira Gomes
Dry eye is a multifactorial disease comprising a wide spectrum of ocular surface alterations and symptoms of discomfort. In most patients with aqueous-deficient dry eye, pharmaceutical tear substitutes are used to control symptoms and prevent ocular surface damage. However, in severe dry eye conditions caused by cicatricial disorders, such as Stevens-Johnson syndrome and ocular cicatricial mucous membrane pemphigoid, noninvasive treatments are insufficient, and patients are at risk of developing complications that can lead to blindness...
September 15, 2017: Cornea
https://www.readbyqxmd.com/read/28921749/functional-specific-t-cell-expansion-after-first-cytomegalovirus-reactivation-predicts-viremia-control-in-allogeneic-hematopoietic-stem-cell-transplant-recipients
#4
Miriam Ciáurriz, Lorea Beloki, Amaya Zabalza, Eva Bandrés, Cristina Mansilla, Estela Pérez-Valderrama, Mercedes Lachén, Mercedes Rodríguez-Calvillo, Natalia Ramírez, Eduardo Olavarría
BACKGROUND: The use of preemptive antiviral therapy to prevent cytomegalovirus (CMV) disease in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients might result in over-treatment, inducing drug-related toxicity and viral resistance. A search for predictive markers is needed, to determine requirement for antiviral therapy. Clinical follow-up, in combination with the use of streptamers (STs) and cytokine-intracellular staining, could help to identify patients at high risk for CMV reactivations...
September 16, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28913702/impaired-fertility-and-motor-function-in-a-zebrafish-model-for-classic-galactosemia
#5
Jo M Vanoevelen, M Estela Rubio-Gozalbo, Britt van Erven, Jörgen Bierau, Xiaoping Huang, Gerard T Berry, Rein Vos, Ana I Coelho
Classic galactosemia is a genetic disorder of galactose metabolism, caused by severe deficiency of galactose-1-phosphate uridylyltransferase (GALT) enzyme activity due to mutations of the GALT gene. Its pathogenesis is still not fully elucidated, and a therapy that prevents chronic impairments is lacking. In order to move research forward, there is a high need for a novel animal model, which allows organ studies throughout development and high-throughput screening of pharmacologic compounds. Here, we describe the generation of a galt knockout zebrafish model and present its phenotypical characterization...
September 14, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28905125/biometeorological-forecasts-for-health-surveillance-and-prevention-of-meteor-tropic-effects
#6
Luis B Lecha Estela
An early method of biometeorological forecasts was developed for Cuba during the late 90s. It was based on the relationship between the daily occurrence of massive health crisis and the magnitude of the 24-h differences of partial density of oxygen in the air (PODA index). Ten years later, applying new technological facilities, a new model was developed in order to offer operational biometeorological forecast to Cuban health institutions. After a satisfactory validation process, the official bioforecast service to health institutions in Villa Clara province began on February of 2012...
September 13, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28893671/combining-multivariate-statistics-and-the-think-aloud-protocol-to-assess-human-computer-interaction-barriers-in-symptom-checkers
#7
Luis Marco-Ruiz, Erlend Bønes, Estela de la Asunción, Elia Gabarrón, Juan Carlos Aviles-Solis, Eunji Lee, Vicente Traver, Keiichi Sato, Johan G Bellika
Symptom checkers are software tools that allow users to submit a set of symptoms and receive advice related to them in the form of a diagnosis list, health information or triage. The heterogeneity of their potential users and the number of different components in their user interfaces can make testing with end-users unaffordable. We designed and executed a two-phase method to test the respiratory diseases module of the symptom checker Erdusyk. Phase I consisted of an online test with a large sample of users (n = 53)...
September 9, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28891925/an-alternative-for-permanent-punctal-occlusion-labial-mucous-membrane-graft-in-the-management-of-severe-dry-eye
#8
Tammy H Osaki, Ana Estela Sant'Anna, Midori H Osaki
No abstract text is available yet for this article.
September 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28887661/widening-the-spectrum-of-deletions-and-molecular-mechanisms-underlying-alpha-thalassemia
#9
José Ferrão, Marisa Silva, Lúcia Gonçalves, Susana Gomes, Pedro Loureiro, Andreia Coelho, Armandina Miranda, Filomena Seuanes, Ana Batalha Reis, Francisca Pina, Raquel Maia, Paula Kjöllerström, Estela Monteiro, João F Lacerda, João Lavinha, João Gonçalves, Paula Faustino
Inherited deletions of α-globin genes and/or their upstream regulatory elements (MCSs) give rise to α-thalassemia, an autosomal recessive microcytic hypochromic anemia. In this study, multiplex ligation-dependent probe amplification performed with commercial and synthetic engineered probes, Gap-PCR, and DNA sequencing were used to characterize lesions in the sub-telomeric region of the short arm of chromosome 16, possibly explaining the α-thalassemia/HbH disease phenotype in ten patients. We have found six different deletions, in heterozygosity, ranging from approximately 3...
September 8, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28884577/uranium-release-from-acidic-weathered-hanford-sediments-single-pass-flow-through-and-column-experiments
#10
Guohui Wang, Wooyong Um, Zheming Wang, Estela Reinoso-Maset, Nancy M Washton, Karl T Mueller, Nicolas Perdrial, Peggy A O'Day, Jon Chorover
The reaction of acidic radioactive waste with sediments can induce mineral transformation reactions that, in turn, control contaminant fate. Here, sediment weathering by synthetic uranium-containing acid solutions was investigated using bench-scale experiments to simulate waste disposal conditions at Hanford's cribs, USA. During acid weathering, the presence of phosphate exerted a strong influence over uranium mineralogy and a rapidly precipitated, crystalline uranium phosphate phase (meta-ankoleite [K(UO2)(PO4)·3H2O]) was identified using spectroscopic and diffraction-based techniques...
September 8, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28882465/remote-cerebellar-hemorrhage-caused-by-undetected-dural-tear-after-lumbar-spinal-surgery
#11
Estela Val-Jordán, Pilar Seral-Moral, Beatriz Novo-González
Remote cerebellar haemorrhage is a rare but serious complication after spinal surgery. Although the mechanism is not well known, it always occurs after loss of cerebrospinal fluid due to dural tear, not always identified, which produces remote venous bleeding. Prognosis depends largely on the severity of this bleeding. We report a case of 67-year-old female who suffered a cerebellar and subarachnoid haemorrhage and subdural haematoma after elective lumbar fusion surgery and eventually required decompressive craniectomy...
September 4, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28875251/the-effect-of-substrate-inoculum-ratio-on-the-kinetics-of-methane-production-in-swine-wastewater-anaerobic-digestion
#12
Verónica Córdoba, Mónica Fernández, Estela Santalla
Methane production from swine wastewater was evaluated by using sewage sludge as inoculum in three substrate to inoculum ratios (SIRs) named A (1:1), B (3:1) and C (6:1), with the objective to identify the proportion that optimizes the performance of the process. Duplicated batch bioreactors of 1 L capacity under mesophilic conditions were used to carry out the experiment. The highest biogas yield was observed in A treatment (554 ± 75 mL/g volatile solid (VS)). Cumulative methane production decreased from 382 ± 22 to 232 ± 5 mL/g VS when SIR increased from 1:1 to 6:1...
September 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28874227/the-impact-of-virus-population-diversity-on-the-dynamics-of-cytomegalovirus-dnaemia-in-allogeneic-stem-cell-transplant-recipients
#13
Víctor Vinuesa, María Alma Bracho, Eliseo Albert, Carlos Solano, Manuela Torres-Puente, Estela Giménez, Fernando González-Candelas, David Navarro
Mixed cytomegalovirus (CMV) infections are associated with delayed viral clearance in solid organ transplant recipients. We investigated whether this could be extrapolated to allogeneic stem cell transplant (allo-SCT) recipients. A total of 48 plasma specimens, obtained during 29 episodes of active CMV infection in 25 non-consecutive allo-SCT patients, were analysed. Baseline blood specimens, drawn shortly prior to the inception of pre-emptive antiviral therapy (pre-treatment specimen; n=29), as well as follow-up samples obtained either after the initiation of antiviral therapy (post-treatment specimen; n=15) or during recurrent episodes (n=4) were analysed...
September 6, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28873230/effect-of-roasting-conditions-on-the-composition-and-antioxidant-properties-of-defatted-walnut-flour
#14
Joana Santos, Manuel Alvarez-Ortí, Estela Sena-Moreno, Adrián Rabadán, José E Pardo, M Beatriz P P Oliveira
BACKGROUND: The walnut oil extraction by pressure systems, produces a press cake as a by-product, with many of the beneficial walnut properties. The objective of this work was to evaluate the composition and the antioxidant properties of walnut flours submitted to different roasting protocols (50, 100 and 150 °C during 30, 60 and 120 minutes). RESULTS: All walnut flours had about 42% of protein and a significant amount of dietary fibre (17%), not being affected by the roasting process...
September 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28859906/a-systematic-linguistic-profile-of-spontaneous-narrative-speech-in-pre-symptomatic-and-early-stage-huntington-s-disease
#15
Wolfram Hinzen, Joana Rosselló, Cati Morey, Estela Camara, Clara Garcia-Gorro, Raymond Salvador, Ruth de Diego-Balaguer
Cognitive decline accompanying the clinically more salient motor symptoms of Huntington's disease (HD) has been widely noted and can precede motor symptoms onset. Less clear is how such decline bears on language functions in everyday life, though a small number of experimental studies have revealed difficulties with the application of rule-based aspects of language in early stages of the disease. Here we aimed to determine whether there is a systematic linguistic profile that characterizes spontaneous narrative speech in both pre-manifest and/or early manifest HD, and how it is related to striatal degeneration and neuropsychological profiles...
August 9, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28859257/cytomegalovirus-infection-management-in-solid-organ-transplant-recipients-across-european-centers-in-the-time-of-molecular-diagnostics-an-esgich-survey
#16
David Navarro, Rafael San-Juan, Oriol Manuel, Estela Giménez, Mario Fernández-Ruiz, Hans H Hirsch, Paolo Antonio Grossi, José María Aguado
BACKGROUND: Scant information is available about how transplant centers are managing their use of quantitative molecular testing (QNAT) assays for active cytomegalovirus (CMV) infection monitoring in solid organ transplant (SOT) recipients. The current study was aimed at gathering information on current practices in the management of CMV infection across European centers in the era of molecular testing assays. METHODS: A questionnaire-based cross-sectional survey study was conducted by the European Study Group of Infections in Immunocompromised Hosts (ESGICH) of the Society of Clinical Microbiology and Infectious Diseases (ESCMID)...
August 31, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28854757/cleaning-and-disinfection-programs-against-campylobacter-jejuni-for-broiler-chickens-productive-performance-microbiological-assessment-and-characterization
#17
Maria Fernanda de Castro Burbarelli, Gustavo do Valle Polycarpo, Karoline Deliberali Lelis, Carlos Alexandre Granghelli, Agatha Cristina Carão de Pinho, Sabrina Ribeiro Almeida Queiroz, Andrezza Maria Fernandes, Ricardo Luiz Moro de Souza, Maria Estela Gaglianone Moro, Roberto de Andrade Bordin, Ricardo de Albuquerque
Detailed cleaning and disinfection programs aims to reduce infection pressure from microorganisms from one flock to the next. However, studies evaluating the benefits to poultry performance, the sanitary status of the facilities, and the sanitary quality of the meat are rarely found. Thus, this study was designed to evaluate 2 cleaning and disinfecting programs regarding their influence on productive performance, elimination of Campylobacter, and characterization of Campylobacter jejuni strains when applied to broiler chickens' facilities...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28851775/gender-and-psychosocial-factors-associated-with-healthy-lifestyle-in-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil-cohort-a-cross-sectional-study
#18
Ana Luísa Patrão, Maria da Conceição Almeida, Sheila Maria Alvim Matos, Dora Chor, Estela M L Aquino
OBJECTIVES: It has been estimated that over 50% of the premature deaths occurring in Western countries can be attributed to causes rooted in lifestyle. In turn, leading a healthy lifestyle has also been associated with a wide range of psychosocial factors. Today, it is known that these differ among men and women. The present article aimed to identify, from a gender-based perspective, the psychosocial factors associated with healthy lifestyles in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) cohort, the largest study concerning adult health conducted in Latin America to date...
August 28, 2017: BMJ Open
https://www.readbyqxmd.com/read/28843648/5-gene-differential-expression-predicts-stability-of-human-intestinal-allografts
#19
Paloma Talayero, Lola Alonso-Guirado, Guillermo Padilla, Haydee Artaza, Ana Dopazo, Fátima Sánchez-Cabo, Sarbelio Rodríguez-Muñoz, Jorge Calvo-Pulido, Esther Mancebo, Mario García de Lacoba, Estela Paz-Artal
In intestinal allografts, endoscopy and histology detect the injury once changes in the bowel wall architecture have occurred. We aimed to identify a molecular signature that could predict early deterioration, within histologically indistinguishable biopsies with "minimal changes" (MC) pathology. Sixty biopsies from 12 adult recipients were longitudinally taken during 8years post-transplant. They were classified as either stable (STA) or non-stable (NSTA) according to the prospectively recorded number, frequency and severity of rejection events of the allograft...
August 24, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28842025/an-integrated-automatic-system-to-evaluate-u-and-th-dynamic-lixiviation-from-solid-matrices-and-to-extract-pre-concentrate-leached-analytes-previous-icp-ms-detection
#20
Melisa Rodas Ceballos, Rafael García-Tenorio, José Manuel Estela, Víctor Cerdà, Laura Ferrer
Leached fractions of U and Th from different environmental solid matrices were evaluated by an automatic system enabling the on-line lixiviation and extraction/pre-concentration of these two elements previous ICP-MS detection. UTEVA resin was used as selective extraction material. Ten leached fraction, using artificial rainwater (pH 5.4) as leaching agent, and a residual fraction were analyzed for each sample, allowing the study of behavior of U and Th in dynamic lixiviation conditions. Multivariate techniques have been employed for the efficient optimization of the independent variables that affect the lixiviation process...
December 1, 2017: Talanta
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