Publications by authors named "Vargas B"

Air contamination in confined environments can lead to severe health damage. Searching for effective and sustainable technologies that might bring quality to indoor air is necessary. Heterogeneous photocatalysis has been studied for its ability to oxidize, inactivating microorganisms in the air.

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AgCuSe nanoparticles could contribute to the growth of strongly light-absorbing thin films and solids with fast ion mobility, among other potential properties. Nevertheless, few methods have been developed so far for the synthesis of AgCuSe nanoparticles, and those reported deliver nanostructures with relatively large sizes and broad size and shape distributions. In this work, a colloidal cation exchange method is established for the easy synthesis of AgCuSe NPs with ca.

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Aims: Periodontitis is a prevalent inflammatory disorder affecting the oral cavity, driven by dysbiotic oral biofilm and host immune response interactions. While the major clinical focus of periodontitis treatment is currently controlling oral biofilm, understanding the immune response is crucial to prevent disease progression. Soluble epoxide hydrolase (sEH) inhibition has shown promise in preventing alveolar bone resorption.

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Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease characterized by the dysfunction and death of motor neurons through multifactorial mechanisms that remain unclear. ALS has been recognized as a multisystemic disease, and the potential role of skeletal muscle in disease progression has been investigated. Reactive aldehydes formed as secondary lipid peroxidation products in the redox processes react with biomolecules, such as DNA, proteins, and amino acids, resulting in cytotoxic effects.

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Objective: We aimed to analyze the frequency of adherence to social distancing and individual protection measures of adult and older populations in two cities in southern Brazil and to characterize the sociodemographic aspects of these individuals.

Methods: This cross-sectional, population-based study was conducted in the cities of Rio Grande, RS, and Criciúma, SC, Brazil. The outcome measure was the frequency of adherence to social distancing measures.

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Background: With the COVID-19 pandemic, social isolation, and information search have increased dramatically. This increased search for information about the Coronavirus, called infodemic, was greatly affected by fake news and information without scientific evidence. This article aimed to assess the infodemic amid the COVID-19 pandemic and its association with sociodemographic and pandemic-related variables, as well as describe the main sources from which people obtained information about COVID-19.

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Band engineering stands as an efficient route to induce strongly correlated quantum many-body phenomena. Besides inspiring analogies among diverse physical fields, tuning on demand the group velocity is highly attractive in photonics because it allows unconventional flows of light. Λ-schemes offer a route to control the propagation of light in a lattice-free configurations, enabling exotic phases such as slow-light and allowing for highly optical non-linear systems.

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Psychological first aid (PFA) trainings are conducted to train frontline care workers in practical and emotional support to people who have been recently affected by stressful events. The aim of this study was to describe the determinants of the implementation behavior of a PFA training strategy in Chile and to provide theoretical information on the factors that influence trainers' self-efficacy. For this purpose, the Determinants of Implementation Behavior Questionnaire, administered online to a sample of 117 PFA trainers throughout Chile, was used.

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In the title complex salt, [Pd(CHN)(CHNO)](CFSO), the palladium(II) atom is fourfold coordinated by two chelating ligands, 2,2'-bi-pyridine and 4,4'-dimeth-oxy-2,2'-bi-pyridine, in a distorted square-planar environment. In the crystal, weak π-π stacking inter-actions between the 2,2'-bi-pyridine rings [centroid-to-centroid distances = 3.8984 (19) Å] and between the 4,4'-dimeth-oxy-2,2'-bi-pyridine rings [centroid-to-centroid distances = 3.

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Diagnostic reference levels (DRLs) are a pivotal strategy to be implemented since pediatric interventional cardiology procedures are increasing. This work aimed to propose an initial set of Brazilian DRLs for pediatric interventional diagnostic and therapeutic (D&T) procedures. A retrospective study was carried out in four Brazilian states, distributed across the three regions of the country.

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This manuscript examines using serenity rooms and similar tools to improve the workplace during COVID-19 for nurses and other practitioners. A rapid review of the literature was conducted and completed from four different databases, including PubMed, CINAHL, Science Direct, and Academic Search Complete. The literature review was completed with the use of a single-string Boolean search to maximize the number of articles returned.

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Objective: To examine disparities in the use of mental health services (MHS) in adolescents according to sociodemographic factors.

Subjects And Method: 2,022 adolescents aged 13-19 years in Santiago, Chile, participated in the study. Between April and May 2008, they answered a self-report survey that assessed lifetime (history of treatment for depression) and current (psychological or pharmacological treatment) use of MHS, sociodemographic variables, and psychopathology as symptoms of depression, symptoms of generalized anxiety disorder, and risk of problematic substance use.

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CsPbBr nanocrystals (NCs) are promising optoelectronic and catalytic materials. Manipulating their morphology can improve their properties and stability. In this work, an alkene-derived zwitterionic ligand was used to control the morphology of CsPbBr NCs to yield the highly unusual rhombicuboctahedron morphology, showcasing the first example of a surfactant-tail controlled growth.

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Background: Mexico is one of the countries with the greatest excess death due to COVID-19. Chiapas, the poorest state in the country, has been particularly affected. Faced with an exacerbated shortage of health professionals, medical supplies, and infrastructure to respond to the pandemic, the non-governmental organization Compañeros En Salud (CES) implemented a COVID-19 infection prevention and control program to limit the impact of the pandemic in the region.

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Xylose is the second most abundant carbohydrate in nature, mostly present in lignocellulosic material, and representing an appealing feedstock for molecule manufacturing through biotechnological routes. However, -a microbial cell widely used industrially for ethanol production-is unable to assimilate this sugar. Hence, in a world with raising environmental awareness, the efficient fermentation of pentoses is a crucial bottleneck to producing biofuels from renewable biomass resources.

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Aim: To suggest cut-off points for body mass index (BMI) using gestational hypertension, preeclampsia, and gestational diabetes mellitus (GDM) as cardiometabolic conditions in pregnancy.

Methods: In this prospective study, singleton pregnant women from the fetal medicine service of the Brazilian Unified Health System were included. The pregnancy, perinatal, and newborn data were obtained from the clinical medical records.

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The neuroinflammatory process is considered one of the main characteristics of central nervous system diseases, where a pro-inflammatory response results in oxidative stress through the generation of reactive oxygen and nitrogen species (ROS and RNS). Olive ( L.) pomace is a by-product of olive oil production that is rich in phenolic compounds (PCs), known for their antioxidant and anti-inflammatory properties.

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Introduction: There have been no prior trials directly comparing the efficacy of different calcitonin gene-related peptide (CGRP) antagonists for migraine prevention. Reported are the results from the first head-to-head study of two CGRP antagonists, galcanezumab (monoclonal antibody) versus rimegepant (gepant), for the prevention of episodic migraine.

Methods: In this 3-month, double-blind, double-dummy study, participants were randomized (1:1) to subcutaneous (SC) galcanezumab 120 mg per month (after a 240 mg loading dose) and a placebo oral disintegrating tablet (ODT) every other day (q.

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Yerba-mate (Ilex paraguariensis) is recognized for its biocompounds and bioactive properties. This study aimed to assess the potential of yerba-mate extract to modulate the intestinal microbiota in rats. After the ethical committee approval (CEUA - UPF, number 025/2018), the Wistar rats were given a daily dose of 3.

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We evaluated whether anserine, a methylated analog of the dipeptide carnosine, is present in the cardiac and skeletal muscles of humans and whether the CARNMT1 gene, which encodes the anserine synthesizing enzyme carnosine-N-methyltransferase, is expressed in human skeletal muscle. We found that anserine is present at low concentrations (low micromolar range) in both cardiac and skeletal muscles, and that anserine content in skeletal muscle is ~15 times higher than in cardiac muscle (cardiac muscle: 10.1 ± 13.

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The zwitterions resulting from the covalent attachment of 3- or 4-hydroxy benzene to the 1,3-dimethylimidazolium cation represent basic compounds (pKa of 8.68 and 8.99 in aqueous solutions, respectively) that chemisorb in aqueous solutions 0.

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Mutant , generated via EMS mutagenesis in , was studied by undergraduate students participating in the Fly-CURE. After inducing genetically mosaic tissue in the adult eye, mutant tissue displays a robust increase in cell division and a rough appearance. Complementation mapping and sequence analysis identified a nonsense mutation in the gene , which we named ( ) due to observed increases in red-pigmented mutant tissue compared to controls.

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Early detection and referral of autism spectrum disorder (ASD) are key in promoting the development of affected children. Recently, a law was enacted that indicates screening for ASD in health care services. This law represents a challenge for pediatricians working in outpatient care.

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Article Synopsis
  • Sport-related concussions are a significant issue for athletes in contact sports, sparking concern among players, families, and medical professionals.
  • The NFL has implemented protocols for detecting and managing concussions, which involve education, baseline testing, and monitoring during games.
  • The article details the NFL's updated concussion protocol, including gameday procedures and guidelines for safely returning players to the field.
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A populational, observational and longitudinal-retrospective study with records of 28 dairy-specialized and dual-purpose farms was carried out to compare the productive performance of cows born by embryo transfer (ET), artificial insemination (AI) and natural mating (NM), using the database of Centro Regional de Investigación para la Producción Animal Sostenible (CRIPAS) of cattle herds in Costa Rica. Herds (system × altitude), conception method (ET, AI and NM), genetic background (DSpB: specialized dairy breeds [Bos taurus] and crosses, GYR × HOL: Gyr × Holstein Crossbred and DSpB × BI: crosses between dairy breeds and Bos indicus), year of birth (or at calving), lactation number and days in milk were evaluated for the productive parameters age at first calving (AFC), calving to conception interval (CCI) and lactation milk yield (LMY) using a GLIMMIX procedure on SAS. The AFC, CCI and LMY were affected (p < .

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