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Article ; Online: Effect of the Class C Fly Ash on Low-Reactive Gold Mine Tailing Geopolymers.

Perera-Mercado, Yibran / Hedayat, Ahmadreza / Tunstall, Lori / Clements, Cara / Hylton, Julia / Figueroa, Linda / Zhang, Nan / Bolaños Sosa, Héctor Gelber / Tupa, Néstor / Yanqui Morales, Isaac / Canahua Loza, Reynaldo Sabino

Polymers

2022 Volume 14, Issue 14

Abstract: ... precursor, they are often low-reactive. This study explored the effect of Class C Fly Ash (FAc ...

Abstract	Beneficiation of industrial wastes, such as mine tailings (MTs), through development of alternative eco-friendly geopolymer binders for construction composites offers a twofold environmental benefit, as it reduces the demand for cement and it increases the sustainability of industrial processes by creating a value-added product from an industrial byproduct. While MTs have the requisite composition for use as a geopolymer precursor, they are often low-reactive. This study explored the effect of Class C Fly Ash (FAc) on the geopolymerization of low-reactive gold MTs. A 10 M sodium hydroxide (NaOH) solution was used as the alkaline activator with four different concentrations of FAc (5, 10, 15 and 20 wt.%). The results indicated that the combination of FAc with the low-reactive gold MTs improved the physicochemical stability of the final geopolymerized samples, with a 95-120% increase in compressive strength, compared to the geopolymer samples of only low-reactive gold MTs. Although some of the strength improvement could be attributed to geopolymerization of the FAc itself, the presence of the FAc also improved the reactivity of the MTs, increasing the geopolymer production of the MTs. This study documents the positive effects of the FAc on gold MTs with low-calcium content and their conversion into sustainable inorganic composite geopolymers for the construction field.
Language	English
Publishing date	2022-07-09
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2527146-5
ISSN	2073-4360 ; 2073-4360
ISSN (online)	2073-4360
ISSN	2073-4360
DOI	10.3390/polym14142809
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Article ; Online: SCC-DFTB Parameters for Fe-C Interactions.

Liu, Chang / Batista, Enrique R / Aguirre, Néstor F / Yang, Ping / Cawkwell, M J / Jakubikova, Elena

The journal of physical chemistry. A

2020 Volume 124, Issue 46, Page(s) 9674–9682

Abstract: We present an optimized density-functional tight-binding (DFTB) parameterization for iron-based complexes based on the ... ...

Abstract	We present an optimized density-functional tight-binding (DFTB) parameterization for iron-based complexes based on the popular
Language	English
Publishing date	2020-11-09
Publishing country	United States
Document type	Journal Article
ISSN	1520-5215
ISSN (online)	1520-5215
DOI	10.1021/acs.jpca.0c08202
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Article: Preliminary assessment of the degree of food addiction through the Spanish Yale Food Addiction Scale for Children (S-YFAS-C) in a pilot pediatric population.

Benítez-Brito, Néstor / González-Pacheco, Himar / Pinto-Robayna, Berta / Moreno-Redondo, Francisco / Díaz-Romero, Carlos / Ramallo-Fariña, Yolanda

Journal of eating disorders

2023 Volume 11, Issue 1, Page(s) 72

Abstract: Introduction: The Spanish Yale Food Addiction Scale for Children (S-YFAS-C) scale is the first ... of FA (S-YFAS-C scale), child feeding attitudes (ChEAT scale) and evaluation of body image (CDRS scale ... Z-score (-1.36-2.66). The average number of FA symptoms measured with the S-YFAS-C scale is 1.67 ± 1 ...

Abstract	Introduction: The Spanish Yale Food Addiction Scale for Children (S-YFAS-C) scale is the first tool adapted to Spanish to evaluate food addiction (FA) in the paediatric population. The aim of this study is to preliminarily evaluate the degree of FA in a non-clinical pilot paediatric population. Material and methods: A transversal observational study was performed on a convenience sample comprised of boys and girls aged 9 to 12 (4th to 6th year primary school). The main outcome measures were evaluation of FA (S-YFAS-C scale), child feeding attitudes (ChEAT scale) and evaluation of body image (CDRS scale). Moreover, sociodemographic and anthropometric data were collected. A descriptive and bivariate analysis of the main characteristics of subjects and outcome measures was performed. Results: A total of 21 boys and 24 girls were preliminarily evaluated and the minimum and maximum values obtained were for age (9.48-12.33), weight in kilograms (26.6-64.5), height in centimetres (131-163), BMI (14.2-27.9) and BMI Z-score (-1.36-2.66). The average number of FA symptoms measured with the S-YFAS-C scale is 1.67 ± 1.45 (range 0-7). A total of 20% of the sample shows three or more symptoms for FA, risk of developing a food disorder and distortion of the body image. Moreover, statistically significant differences were observed between desired body image in boys and girls (P = 0.001). Conclusions: The S-YFAS-C scale enables evaluating food addiction in Spanish-speaking boys and girls. The data obtained in regard to quantifying symptoms are similar compared to the original scale (S-YFAS-C: 1.67 ± 1.45 vs. YFAS-C: 2 ± 1.81). The option to score the counting of symptoms is the most sensitive measure to evaluate subclinical food behaviours.
Language	English
Publishing date	2023-05-11
Publishing country	England
Document type	Journal Article
ZDB-ID	2699357-0
ISSN	2050-2974
ISSN	2050-2974
DOI	10.1186/s40337-023-00798-9
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Article: Selective Fusion in Lenke 1 B/C: Before or After Menarche?

Davies, Nestor Ricardo / Tello, Carlos / Piantoni, Lucas / Remondino, Rodrigo / Galaretto, Eduardo / Wilson, Ida Alejandra Francheri / Rodriguez, Victor Vasquez / Bersusky, Ernesto / Noel, Mariano

Global spine journal

2020 Volume 11, Issue 5, Page(s) 686–689

Abstract: ... scoliosis (Lenke 1 B/C).: Methods: A retrospective, comparative study was conducted. Selective fusion was ...

Abstract	Study design: A retrospective, comparative study. Objective: To determine the radiological behavior of the lumbar curve in selective fusions in premenarchal girls with adolescent idiopathic scoliosis (Lenke 1 B/C). Methods: A retrospective, comparative study was conducted. Selective fusion was performed in 21 patients younger than 18 years. The patients were divided into 2 groups: group A, after menarche (n = 12) and group B, before menarche (n = 9). Angles (preoperative, and at 1 and 2 years postoperatively) of the fused thoracic curves and the corresponding lumbar curves were measured and compared. For statistical analysis, the Results: Mean preoperative angle value of the proximal/main thoracic curve was 61° in group A and 57° in group B ( Conclusions: Over a 2-year follow-up, we did not find significant radiological differences in lumbar curves between patients who underwent surgery before and after menarche.
Language	English
Publishing date	2020-05-07
Publishing country	England
Document type	Journal Article
ZDB-ID	2648287-3
ISSN	2192-5690 ; 2192-5682
ISSN (online)	2192-5690
ISSN	2192-5682
DOI	10.1177/2192568220920564
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Article ; Online: COVID-Bot: UV-C Based Autonomous Sanitizing Robotic Platform for COVID-19.

Camacho, Edgar C / Ospina, Nestor I / Calderón, Juan M

IFAC-PapersOnLine

2021 Volume 54, Issue 13, Page(s) 317–322

Abstract: ... cost and easy-to-replicate robot, which disinfects surfaces through type C ultraviolet radiation ... The platform is based on a differential robotic base, an RGB-D camera, a tracking camera, three UV-C lamps, and ...

Abstract	This paper presents the design and implementation of COVID-Bot, an open-source robotic platform for sanitizing single plant environments such as offices, houses, apartments, among others. This development seeks to create a tool that contributes to the global fight against the COVID-19 pandemic, from a low-cost and easy-to-replicate robot, which disinfects surfaces through type C ultraviolet radiation. The platform is based on a differential robotic base, an RGB-D camera, a tracking camera, three UV-C lamps, and an embedded computer running the ROS-based control software. In addition, this paper presents the description of the hardware used, the software implemented, and the tests carried out to corroborate the operation of the integrated system. These tests demonstrated that the system is adequate to autonomously cover a one-floor apartment, based on the theoretical radiation distance of the used lamps.
Language	English
Publishing date	2021-11-12
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2839185-8
ISSN	2405-8963 ; 2405-8963
ISSN (online)	2405-8963
ISSN	2405-8963
DOI	10.1016/j.ifacol.2021.10.466
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Article: Supplementation with Vitamins C and E and Exercise-Induced Delayed-Onset Muscle Soreness: A Systematic Review.

Torre, María F / Martinez-Ferran, María / Vallecillo, Néstor / Jiménez, Sergio L / Romero-Morales, Carlos / Pareja-Galeano, Helios

Antioxidants (Basel, Switzerland)

2021 Volume 10, Issue 2

Abstract: ... examines whether supplementation with vitamin C and/or vitamin E is able to prevent or attenuate delayed ... of the intake of vitamin C and/or vitamin E without other supplements plus a controlled eccentric exercise ... its consisted of vitamin C in eight studies, vitamin E in two studies, and both in four studies. Only in 3 ...

Abstract	Muscle damage induced by exercise may have several consequences such as delayed-onset muscle soreness, a side-effect of the release of free radicals during oxidative stress. To mitigate the oxidative stress cascade, the oral intake of antioxidants has been assessed by several research groups. This review examines whether supplementation with vitamin C and/or vitamin E is able to prevent or attenuate delayed-onset muscle soreness after eccentric exercise. The PubMed, Web of Science, Medline, and Embase databases were searched to identify studies meeting the inclusion criteria: primary randomized control trials, healthy male and female participants aged 16-80 years, and an intervention consisting of the intake of vitamin C and/or vitamin E without other supplements plus a controlled eccentric exercise regimen. Further requirements were the measurement of muscle soreness or markers of delayed-onset muscle soreness. All original full-text articles in English or translated into English published from January 2000 to June 2020 were considered for this review. Fourteen studies were finally identified, including 280 participants, 230 men, and 50 women aged 16-30 years. All participants were healthy individuals with different starting levels of physical activity. Supplementation was acute in two studies and chronic in 12, and its consisted of vitamin C in eight studies, vitamin E in two studies, and both in four studies. Only in 3 of the 14 studies was muscle soreness found to be significantly reduced in response to vitamin C and/or vitamin E supplementation at all time points when compared to the placebo group. Despite some studies showing the beneficial effects of chronic supplementation with these vitamins on muscle soreness manifesting 24-72 h after eccentric exercise, the evidence is so far insufficient to confirm that the intake of antioxidant vitamins is able to minimize delayed-onset muscle soreness in this context.
Language	English
Publishing date	2021-02-12
Publishing country	Switzerland
Document type	Journal Article ; Review
ZDB-ID	2704216-9
ISSN	2076-3921
ISSN	2076-3921
DOI	10.3390/antiox10020279
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Article ; Online: Design, synthesis, and biological evaluation of C

Kassick, Andrew J / Treat, Anny / Tomycz, Nestor / Feasel, Michael G / Kolber, Benedict J / Averick, Saadyah

RSC medicinal chemistry

2021 Volume 13, Issue 2, Page(s) 175–182

Abstract: The recent widespread abuse of high potency synthetic opioids, such as fentanyl, presents a serious threat to individuals affected by substance use disorder. Synthetic opioids generally exhibit ... ...

Abstract	The recent widespread abuse of high potency synthetic opioids, such as fentanyl, presents a serious threat to individuals affected by substance use disorder. Synthetic opioids generally exhibit prolonged
Language	English
Publishing date	2021-11-02
Publishing country	England
Document type	Journal Article
ISSN	2632-8682
ISSN (online)	2632-8682
DOI	10.1039/d1md00285f
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Article ; Online: Clinical epidemiology of acute hepatitis C in South America.

Dirchwolf, Melisa / Marciano, Sebastián / Mauro, Ezequiel / Ruf, Andrés Eduardo / Rezzonico, Lucrecia / Anders, Margarita / Chiodi, Daniela / Petta, Néstor Gill / Borzi, Silvia / Tanno, Federico / Ridruejo, Ezequiel / Barreyro, Fernando / Shulman, Carolina / Plaza, Pablo / Carbonetti, Rodolfo / Tadey, Luciana / Schroder, Teresa / Fainboim, Hugo

Journal of medical virology

2017 Volume 89, Issue 2, Page(s) 276–283

Abstract: There is scarce data pertaining to acute hepatitis C (aHC) infection in South America. We aimed ...

Abstract	There is scarce data pertaining to acute hepatitis C (aHC) infection in South America. We aimed to describe clinical characteristics and evolution of aHC in a South American cohort. A retrospective survey was conducted at 13 hepatology units. All patients ≥16 years old with aHC diagnosis were included. Demographic, clinical and outcome information were registered in a standardized ad hoc questionnaire. Sixty-four patients were included. The majority were middle-aged (median age: 46 years) and female (65.6%); most of them were symptomatic at diagnosis (79.6%). HCV-1 was the most prevalent genotype (69.2%). Five patients had liver failure: three cases of severe acute hepatitis, one case of fulminant hepatitis and one case of acute-on-chronic liver failure. Nosocomial exposure was the most prevalent risk factor. Evolution was assessed in 46 patients. In the untreated cohort, spontaneous resolution occurred in 45.8% and was associated with higher values of AST/ALT and with the absence of intermittent HCV RNA viremia (P = 0.01, 0.05, and 0.01, respectively). In the treated cohort, sustained virological response was associated with nosocomial transmission and early treatment initiation (P = 0.04 each). The prevalence of nosocomial transmission in this South-American cohort of aHC stresses the importance of following universal precautions to prevent HCV infection. J. Med. Virol. 89:276-283, 2017. © 2016 Wiley Periodicals, Inc.
MeSH term(s)	Adolescent ; Adult ; Aged ; Aged, 80 and over ; Alanine Transaminase/blood ; Aspartate Aminotransferases/blood ; Cross Infection/epidemiology ; Cross Infection/pathology ; Cross Infection/transmission ; Disease Transmission, Infectious ; Female ; Hepatitis C/epidemiology ; Hepatitis C/pathology ; Hepatitis C/transmission ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Risk Factors ; South America/epidemiology ; Surveys and Questionnaires ; Viremia ; Young Adult
Chemical Substances	Aspartate Aminotransferases (EC 2.6.1.1) ; Alanine Transaminase (EC 2.6.1.2)
Language	English
Publishing date	2017
Publishing country	United States
Document type	Journal Article
ZDB-ID	752392-0
ISSN	1096-9071 ; 0146-6615
ISSN (online)	1096-9071
ISSN	0146-6615
DOI	10.1002/jmv.24588
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Article ; Online: Highly Active C

Hernández Lozada, Néstor J / Lai, Rung-Yi / Simmons, Trevor R / Thomas, Kelsey A / Chowdhury, Ratul / Maranas, Costas D / Pfleger, Brian F

ACS synthetic biology

2018 Volume 7, Issue 9, Page(s) 2205–2215

Abstract: ... of Escherichia coli. We used the selection to identify variants in a randomly mutagenized library of the C ...

Abstract	Microbial metabolism is an attractive route for producing medium chain length fatty acids, e.g., octanoic acid, used in the oleochemical industry. One challenge to this strategy is the lack of enzymes that are both highly active in a microbial host and selective toward substrates with desired chain length. Of the many steps in fatty acid biosynthesis, the thioesterase is the most widely used enzyme for controlling chain length. Thioesterases hydrolyze the thioester bond between fatty acids and the acyl-carrier protein (ACP) or coenzyme A (CoA) cofactor. The functional role of thioesterases varies between organisms ( i.e., bacteria vs plant) and therefore so do the substrate specificities. As a result, microbial biocatalysts that utilize a heterologous thioesterase either produce high titers of fatty acids with mixed chain lengths or low titers of products with a narrow chain length distribution. To search for highly active enzymes that selectively hydrolyze octanoyl-ACP, we developed a genetic selection based on the lipoic acid requirement of Escherichia coli. We used the selection to identify variants in a randomly mutagenized library of the C
MeSH term(s)	Acyl Carrier Protein/chemistry ; Acyl Carrier Protein/metabolism ; Amino Acid Sequence ; Caprylates/metabolism ; Coenzyme A/chemistry ; Coenzyme A/metabolism ; Escherichia coli/metabolism ; Fatty Acids/chemistry ; Fatty Acids/metabolism ; Kinetics ; Mutagenesis ; Protein Engineering/methods ; Protein Structure, Tertiary ; Recombinant Proteins/biosynthesis ; Recombinant Proteins/isolation & purification ; Sequence Alignment ; Substrate Specificity ; Thiolester Hydrolases/chemistry ; Thiolester Hydrolases/genetics ; Thiolester Hydrolases/metabolism
Chemical Substances	Acyl Carrier Protein ; Caprylates ; Fatty Acids ; Recombinant Proteins ; Thiolester Hydrolases (EC 3.1.2.-) ; oleoyl-(acyl-carrier-protein) hydrolase (EC 3.1.2.14) ; octanoic acid (OBL58JN025) ; Coenzyme A (SAA04E81UX)
Language	English
Publishing date	2018-08-21
Publishing country	United States
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	2161-5063
ISSN (online)	2161-5063
DOI	10.1021/acssynbio.8b00215
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Article ; Online: The Value of C-Reactive Protein-to-Lymphocyte Ratio in Predicting the Severity of SARS-CoV-2 Pneumonia.

Cillóniz, Catia / Torres, Antoni / Garcia-Vidal, Carolina / Moreno-Garcia, Estela / Amaro, Rosanel / Soler, Nestor / Marcos, M Angeles / Rico, Verónica / Gabarrús, Albert / Nicolás, Josep María / Soriano, Alex

Archivos de bronconeumologia

2020 Volume 57, Page(s) 79–82

Language	English
Publishing date	2020-09-06
Publishing country	Spain
Document type	Case Reports
ZDB-ID	733126-5
ISSN	1579-2129 ; 0300-2896
ISSN (online)	1579-2129
ISSN	0300-2896
DOI	10.1016/j.arbres.2020.07.038
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