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  1. Article ; Online: Reply to comment on “Clinical manifestations of Rickettsia rickettsii in a familial outbreak in Panama”

    Carlos A. Daza T / Dora Estripeaut / Nathan Gundacker / Jose Antonio Suarez

    Travel Medicine and Infectious Disease, Vol 54, Iss , Pp 102596- (2023)

    2023  

    Keywords Arctic medicine. Tropical medicine ; RC955-962 ; Infectious and parasitic diseases ; RC109-216
    Language English
    Publishing date 2023-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Hybrid Cements

    Ana María Moreno de los Reyes / José Antonio Suárez-Navarro / María del Mar Alonso / Catalina Gascó / Isabel Sobrados / Francisca Puertas

    Molecules, Vol 27, Iss 498, p

    Mechanical Properties, Microstructure and Radiological Behavior

    2022  Volume 498

    Abstract: The use of more eco-efficient cements in concretes is one of the keys to ensuring construction industry sustainability. Such eco-efficient binders often contain large but variable proportions of industrial waste or by-products in their composition, many ... ...

    Abstract The use of more eco-efficient cements in concretes is one of the keys to ensuring construction industry sustainability. Such eco-efficient binders often contain large but variable proportions of industrial waste or by-products in their composition, many of which may be naturally occurring radioactive materials (NORMs). This study explored the application of a new gamma spectrometric method for measuring radionuclide activity in hybrid alkali-activated cements from solid 5 cm cubic specimens rather than powder samples. The research involved assessing the effect of significant variables such as the nature of the alkaline activator, reaction time and curing conditions to relate the microstructures identified to the radiological behavior observed. The findings showed that varying the inputs generated pastes with similar reaction products (C-S-H, C-A-S-H and (N,C)-A-S-H) but different microstructures. The new gamma spectrometric method for measuring radioactivity in solid 5 cm cubic specimens in alkaline pastes was found to be valid. The variables involved in hybrid cement activation were shown to have no impact on specimen radioactive content. The powder samples, however, emanated 222 Rn (a descendent of 226 Ra), possibly due to the deformation taking place in fly ash structure during alkaline activation. Further research would be required to explain that finding.
    Keywords NORMs ; hybrid cements ; alkaline activation ; fly ash ; characterization ; gamma spectrometry and radon ; Organic chemistry ; QD241-441
    Subject code 333
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Algunas consideraciones en torno al cáncer de esófago

    José Antonio Suárez Rodríguez / Ana María Nazario Dolz / Lázaro Ibrahim Romero García / Gilberto Carlos Falcón Vilariño / Grethel Odalys Rivero Reyes

    Revista Cubana de Medicina Militar, Vol 51, Iss 3, Pp e02201751-e

    2022  Volume 02201751

    Abstract: Introducción: El cáncer de esófago es una enfermedad presente a escala mundial, sobre todo en naciones en vías de desarrollo. Se realizó una revisión bibliográfica en bases de datos biomédicas mediante el motor de búsqueda de información Google académico. ...

    Abstract Introducción: El cáncer de esófago es una enfermedad presente a escala mundial, sobre todo en naciones en vías de desarrollo. Se realizó una revisión bibliográfica en bases de datos biomédicas mediante el motor de búsqueda de información Google académico. Se seleccionaron 24 de 62 artículos; 22 (91,6 %) del último quinquenio, publicados en español e inglés, relacionados con el objetivo propuesto. Objetivo: Describir algunos aspectos del cáncer de esófago, con énfasis en los epidemiológicos, etiopatogénicos y del tratamiento quirúrgico. Desarrollo: El cáncer de esófago es más frecuente en varones, con proporción hombre/mujer de 6:1, aunque en poblaciones de alto riesgo la incidencia es igual en ambos sexos; aunque algunos refieren que la relación es de 3 a 10 hombres por cada mujer, en dependencia de la zona geográfica. Las áreas de alta frecuencia son: Asia, África Central y del Sur. El carcinoma epidermoide y el adenocarcinoma representan el 95,0 % de todos los tumores esofágicos. La esofagectomía abierta o mínimamente invasiva constituye el pilar básico del tratamiento quirúrgico. Conclusiones: En la etiología del cáncer de esófago, los factores moleculares, genéticos y ambientales juegan un papel importante. El diagnóstico en etapas avanzadas predomina debido a lo tardío de la aparición de los síntomas y a las insuficiencias en el cribaje. El tratamiento quirúrgico constituye un pilar fundamental para los tres primeros estadios de la enfermedad, acompañada o no de quimio-radioterapia adyuvante o de neoadyuvancia (en el estadio II).
    Keywords cáncer de esófago ; factores de riesgo ; etiopatogenia ; esofagectomía ; Medicine ; R ; Medicine (General) ; R5-920
    Language Spanish
    Publishing date 2022-06-01T00:00:00Z
    Publisher ECIMED
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Predictors of complications and death in patients with esophagectomy due to esophagus cancer

    Ana María Nazario Dolz / Lázaro Ibrahim Romero García / José Antonio Suárez Rodríguez / Gilberto Carlos Falcón Vilariño

    Medisan, Vol 26, Iss 2, Pp 240-

    2022  Volume 254

    Abstract: Introduction: Morbidity and mortality continue being high worldwide as consequence of the esophagectomy programmed due to esophagus cancer. Objective: To identify the predictor factors of postsurgical and death complications, hospitalization and death ... ...

    Abstract Introduction: Morbidity and mortality continue being high worldwide as consequence of the esophagectomy programmed due to esophagus cancer. Objective: To identify the predictor factors of postsurgical and death complications, hospitalization and death causes in the studied population. Method: A cohort study of 81 patients with diagnosis of esophagus cancer was carried out. They were assisted in Saturnino Lora and Dr. Juan Bruno Zayas Alfonso hospitals in the province of Santiago de Cuba from January, 2010 to December, 2019, of which a random sample of 68 was chosen. To identify the prediction factors associated with the complications and mortality 2 cohorts of sick patients were defined: the exposed and those not exposed to interest factors, such as the thoracotomy realization, reinterventions, besides the infectious medical and surgical complications. The statistical method of Hosmer-Lemeshow was used with a significance level of α = 0,10. Results: If thoracotomy is carried out, the probability that infectious surgical complications are developed is 2.3 times more that if it is not carried out; also, the risk of dying due to this complications (p=0.024), in opposition to when they are not presented, ascends to 370.0 % (IC 90 %: 1.5–14.8). Conclusion: The thoracotomy realization is established as predictor factor of complications and the presence of reinterventions and infectious medical and surgical complications as death predictors in the programmed esophagectomy.
    Keywords cáncer de esófago ; esofagectomía ; complicaciones ; factores predictores ; Medicine (General) ; R5-920 ; Internal medicine ; RC31-1245
    Subject code 610
    Language Spanish
    Publishing date 2022-04-01T00:00:00Z
    Publisher Centro Provincial de Información de Ciencias Médicas
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Migrants in transit across Central America and the potential spread of chloroquine resistant malaria–a call for action

    Nelson Iván Agudelo Higuita / Carlos Franco-Paredes / Andrés F. Henao-Martínez / Bomar Mendez Rojas / José Antonio Suarez / Laura Naranjo / Jackeline Alger

    The Lancet Regional Health. Americas, Vol 22, Iss , Pp 100505- (2023)

    2023  

    Abstract: Summary: Human migration has shaped the distribution and patterns of infectious diseases transmission throughout history. Migration is one of the contributing factors that has played an important role in the dissemination of drug-resistant Plasmodium ... ...

    Abstract Summary: Human migration has shaped the distribution and patterns of infectious diseases transmission throughout history. Migration is one of the contributing factors that has played an important role in the dissemination of drug-resistant Plasmodium falciparum. Central America and Mexico are important transit points of an increasing migrant flow originating from countries where chloroquine-resistant P. falciparum and vivax are prevalent. Surveillance systems, as well as detection and diagnostic capacities in the Central American region, are limited. The additional challenges imposed by the increasingly mobile population in the region are creating the perfect scenario for the emergence or re-emergence of infectious diseases, such as the introduction of chloroquine-resistant malaria. The development and implementation of transborder, collaborative, and ethical migrant health initiatives in the region are urgently needed. The health of migrant people in transit during their migratory route is of our collective interest and responsibility; their exclusion from health programs based on their legal status contradicts international human rights treaties and is inconsistent with ethical global public health practice.
    Keywords Central America ; Drug resistance ; Malaria ; Transients and migrants ; Panama ; Public aspects of medicine ; RA1-1270
    Subject code 170
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Improving the implantation of non-Saccharomyces yeasts in winemaking by UHPH processing

    Morata Antonio / Escott Carlos / Vaquero Cristian / del Fresno Juan Manuel / Guamis Buenaventura / Loira Iris / Bañuelos María Antonia / Palomero Felipe / López Carmen / González Carmen / Lepe Jose Antonio Suárez

    BIO Web of Conferences, Vol 68, p

    2023  Volume 02001

    Abstract: The use of unconventional yeasts, also called non-Saccharomyces yeasts, is a hot topic in current enology due to the improvement that can be produced in the sensory profile during fermentation. However, the use of these yeasts have problems due to ... ...

    Abstract The use of unconventional yeasts, also called non-Saccharomyces yeasts, is a hot topic in current enology due to the improvement that can be produced in the sensory profile during fermentation. However, the use of these yeasts have problems due to difficulties in the implantation and competition with wild Saccharomyces yeasts. Ultra-High Pressure Homogenization (UHPH) has demonstrated to be a powerful tool to eliminate microorganisms in grape must, specially yeast and bacteria even at low in-valve temperatures. UHPH can be considered a non-thermal technology with protective effect on sensitive molecules as terpenes and anthocyanins. The preprocessing of must by UHPH leaves it free of yeast with an optimal sensory quality, being this a perfect situation to inoculate non-Saccharomyces yeasts. We have fermented UHPH musts and controls with several non-Saccharomyces species (Lachancea thermotolerans, Metschnikowia pulcherrima, Torulaspora delbrueckii, Hanseniaspora vineae), reaching in most of the UHPH treatments better implantations of the inoculated yeasts and a complete elimination of wild yeasts. The impact of the UHPH treatment is a better expression of the metabolic and enzymatic activities of the non-Saccharomyces yeasts. That effect enhances the sensory quality and facilitates the use of non-Saccharomyces yeasts at industrial scale.
    Keywords Microbiology ; QR1-502 ; Physiology ; QP1-981 ; Zoology ; QL1-991
    Subject code 660
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Use of red grape juice (concentrated and treated by UHPH) as a base to produce isotonic drinks

    Gonzalez Carmen / Bendaali Yasmina / Vaquero Cristian / Escott Carlos / del Fresno Juan Manuel / Loira Iris / Bañuelos Maria Antonia / Palomero Felipe / López Carmen / Lepe José Antonio Suárez / Morata Antonio

    BIO Web of Conferences, Vol 68, p

    2023  Volume 02024

    Abstract: The physical-chemical composition, sensory characteristics, and nutritional value of the grape juice can provide sports drink (isotonic beverage) with antioxidant compounds that complement the beneficial effect of these drinks to the rehydration and ... ...

    Abstract The physical-chemical composition, sensory characteristics, and nutritional value of the grape juice can provide sports drink (isotonic beverage) with antioxidant compounds that complement the beneficial effect of these drinks to the rehydration and replacement of minerals and carbohydrates, during physical activity. Grape juice contains mainly water, sugars, organic acids, and phenolic compounds. By diluting the sugar content of the must to 40-50 g/L, it will allow us to obtain a drink with beneficial properties for health, avoiding the addition of sweeteners. Phenolic compounds play an important role in the prevention of various diseases through their biological activities related to antioxidant, anti-inflammatory, anticancer, anti-aging, antimicrobial and cardioprotective properties. Several studies have shown that grape juice allows to improve the performance of the activity, protect against oxidative damage, and reduce inflammation during, sports activities. The polyphenolic substances present in grape musts provide sensory characteristics of interest, mainly color and aroma, important indicators for consumers when choosing this type of beverage. The anthocyanin content of musts from red varieties, gives the drink a more natural and attractive character for the consumer without the use of synthetic dyes. It is important to recognize the demand of consumers for new innovative, and healthy products, so we focus on the development of a natural, functional drink using red grape musts as a base (concentrated or treated with UHPH) as a source of polyphenols and sugars, showing interesting organoleptic properties without chemical additives, and that allows to replenish electrolytes and energy.
    Keywords Microbiology ; QR1-502 ; Physiology ; QP1-981 ; Zoology ; QL1-991
    Subject code 540
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: The Effect of Elicitors and Canopy Management in the Chemical Composition of Vitis vinifera Red Varieties in Warm and Hot Areas in Spain

    Natalia Gutiérrez / Leyre López-de-Silanes / Carlos Escott / Iris Loira / Juan Manuel del Fresno / José Antonio Suárez-Lepe / Antonio Morata

    Agronomy, Vol 11, Iss 1192, p

    2021  Volume 1192

    Abstract: Canopy management practices in vineyards, such as sprawling systems and shoot trimming, can change the accumulation of metabolites in grapes. The use of elicitors of biological origin on grapevines of Vitis vinifera red grape varieties may also modulate ... ...

    Abstract Canopy management practices in vineyards, such as sprawling systems and shoot trimming, can change the accumulation of metabolites in grapes. The use of elicitors of biological origin on grapevines of Vitis vinifera red grape varieties may also modulate the chemical composition of the berries. These modifications are often observed in the accumulation of phenolic compounds, including pigments. Both technical approaches are alternatives involved in minimizing the effects of global climate change in warm areas. The increase of temperature related to climate change accelerates the accumulation of sugars, but produces unbalanced grapes. This work establishes the use of button sensors to monitor the climate changes occurring at grape cluster level. Together with climate monitoring, conventional instrumental analytical techniques are used to follow up the chemical composition and the phenolic fraction of grapes in four different production areas in Spain. The effect of either treatment seems variable and to be affected by external factors besides the treatment itself and the climate conditions. While there is a fine effect that correlates with the use of elicitors in varieties like Merlot and Tempranillo, there is minimal improvement observed in Tintilla de Rota. The total phenolic index increases were between 2.3% and 11.8% in the first two parcels. The same happened with the vineyard’s canopy management systems, with increased pigment accumulation and the total phenolic index rising (37.7% to 68.7%) after applying intense shoot trimming, or a variation in sugar concentrations when using sprawl conduction. This study aims to provide viticulturists and oenologists in particular, and farmers in general, with data on the field regarding the use of alternative sustainable practices in the cultivation of grapes. The techniques used involved 100% natural products without adjuvants. The benefits obtained from applying some of these practices would be to produce technically mature grapes despite climate changes, and the ...
    Keywords polyphenols ; shoot trimming ; Vitis vinifera ; microclimate ; pigments ; sprawling system ; Agriculture ; S
    Subject code 333
    Language English
    Publishing date 2021-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Detection of Leishmania RNA Virus 1 in Leishmania (Viannia) panamensis Isolates, Panama

    Kadir Gonzalez / Santiago S. De León / Vanessa Pineda / Franklyn Samudio / Zeuz Capitan-Barrios / José Antonio Suarez / Adriana Weeden / Betsi Ortiz / Margarita Rios / Brechla Moreno / Nathan D. Gundacker / Juan M. Pascale / Sandra López-Vergès / Néstor Sosa / Azael Saldaña / Leyda E. Ábrego

    Emerging Infectious Diseases, Vol 29, Iss 6, Pp 1250-

    2023  Volume 1253

    Abstract: We detected Leishmania RNA virus 1 (LRV1) in 11 isolates of Leishmania (Viannia) panamensis collected during 2014–2019 from patients from different geographic areas in Panama. The distribution suggested a spread of LRV1 in L. (V.) panamensis parasites. ... ...

    Abstract We detected Leishmania RNA virus 1 (LRV1) in 11 isolates of Leishmania (Viannia) panamensis collected during 2014–2019 from patients from different geographic areas in Panama. The distribution suggested a spread of LRV1 in L. (V.) panamensis parasites. We found no association between LRV1 and an increase in clinical pathology.
    Keywords Leishmania ; Leishmania RNA virus 1 ; Leishmaniavirus ; LRV1 ; Leishmania (Viannia) panamensis ; viruses ; Medicine ; R ; Infectious and parasitic diseases ; RC109-216
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher Centers for Disease Control and Prevention
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Ultralarge Free‐Standing Imine‐Based Covalent Organic Framework Membranes Fabricated via Compression

    Jesús Á. Martín‐Illán / José Antonio Suárez / Julio Gómez‐Herrero / Pablo Ares / Daniel Gallego‐Fuente / Youdong Cheng / Dan Zhao / Daniel Maspoch / Félix Zamora

    Advanced Science, Vol 9, Iss 7, Pp n/a-n/a (2022)

    2022  

    Abstract: Abstract Demand continues for processing methods to shape covalent organic frameworks (COFs) into macroscopic objects that are needed for their practical applications. Herein, a simple compression method to prepare large‐scale, free‐standing homogeneous ... ...

    Abstract Abstract Demand continues for processing methods to shape covalent organic frameworks (COFs) into macroscopic objects that are needed for their practical applications. Herein, a simple compression method to prepare large‐scale, free‐standing homogeneous and porous imine‐based COF‐membranes with dimensions in the centimeter range and excellent mechanical properties is reported. This method entails the compression of imine‐based COF‐aerogels, which undergo a morphological change from an elastic to plastic material. The COF‐membranes fabricated upon compression show good performances for the separation of gas mixtures of industrial interest, N2/CO2 and CH4/CO2. It is believed that the new procedure paves the way to a broader range of COF‐membranes.
    Keywords aerogels ; COF‐membranes ; covalent organic frameworks ; gas mixtures separation ; porous materials ; Science ; Q
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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