Investigación y Desarrollo: Envíos recientes
Mostrando ítems 2081-2100 de 5743
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Article
Developing a Training Web Application for Improving the COVID-19 Diagnostic Accuracy on Chest X-ray (2021)
(Springer Science and Business Media Deutschland GmbH, 2021)In December 2019, a new coronavirus known as 2019-nCoV emerged in Wuhan, China. The virus has spread globally and the infection was declared pandemic in March 2020. Although most cases of coronavirus disease 2019 (COVID-19) ... -
Article
Consumption of a calafate (Berberis microphylla) extract of modifies markers of immune respo NSE in lean and obese mice (2021)
(Sociedad Chilena de Nutricion Bromatologia y Toxilogica, 2021)Obesity has been identified as a risk factor for severity of respiratory infections. Thus, the support of the immune response in obese subjects is of interest. The present work evaluated the effect of the consumption of a ... -
Article
First biological report on a small crater lagoon in northern Chilean Patagonia (38°S, Laguna Verde, Araucania Region, Chile) (2021)
(Brill Academic Publishers, 2021) -
Article
Ethnic press, migration and image: The case of the newspaper l'italia illustrata, voice of the italian community in chile (1896-1898) (2021)
(University of Las Palmas de Gran Canaria, Faculty of Geography and History, 2021-01-30)This article analyses the ethnic press of the twentieth century, regarded as a direct product of migration, in order to recreate links between immigrants and their native country. We focus in particular on the founding of ... -
Article
Assessment of characteristics and conditions before the end of lockdown (2021)
(Universitas Indonesia, Faculty of public health, 2021-02)After months of blockades and restriction, the decision of the best time to end the lockdown after the first wave of the COVID-19 pandemic is the big question for health rectors. This study aimed to evaluate the characteristics ... -
Article
Comparative effect of physical exercise versus statins on improving arterial stiffness in patients with high cardiometabolic risk: A network meta-analysis (2021)
(Public Library of Science, 2021-02-16)Background The comparative analysis of the effect of several doses of statins against different intensities of physical exercise on arterial stiffness (a measure of cardiovascular risk) could shed light for clinicians on ... -
Article
PSC-db: A Structured and Searchable 3D-Database for Plant Secondary Compounds (2021)
(NLM (Medline), 2021-02-20)Plants synthesize a large number of natural products, many of which are bioactive and have practical values as well as commercial potential. To explore this vast structural diversity, we present PSC-db, a unique plant ... -
Article
Synthesis of New Brassinosteroid 24-Norcholane Type Analogs Conjugated in C-3 with Benzoate Groups (2021)
(NLM (Medline), 2021-02-22)The metabolism of brassinosteroid leads to structural modifications in the ring skeleton or the side alkyl chain. The esterification and glycosylation at C-3 are the most common metabolic pathways, and it has been suggested ... -
Article
Systematic cluster growth: a structure search method for transition metal clusters (2021)
(Royal Society of Chemistry, 2021-02-28)The systematic cluster growth (SCG) method is a biased structure search strategy based on a seeding process for investigating the structural evolution and growth pattern of transition metal clusters. In SCG, a set of initial ... -
Article
Cost-effectiveness of a whole-body vibration program in patients with type 2 diabetes: A retrospective study protocol (2021)
(MDPI AG, 2021-03-01)Background: Type 2 diabetes mellitus (T2DM) is a chronic disorder, with patients exhibiting hyperglycemia in fasting and postprandial states. T2DM has several complications, including loss of sensation in more distal body ... -
Article
Relationship between exclusive breastfeeding and brain-derived neurotrophic factor in children (2021)
(Public Library of Science, 2021-03)Objective A positive relationship between breastfeeding and brain-derived neurotrophic factor (BDNF) in infants has been suggested due to the presence of BDNF in human milk. This study aimed to determine the relationship ... -
Article
Study of cyberbullying among adolescents in recent years: A bibliometric analysis (2021)
(MDPI AG, 2021-03-02)In recent years, cyberbullying has been recognized as a severe public health problem and is drawing growing interest. The objective of this study was to perform a bibliometric analysis of the scientific production on ... -
Article
Parents’ perceptions on barriers and facilitators of physical activity among schoolchildren: A qualitative study (2021)
(MDPI AG, 2021-03-02)Given that physical activity (PA) plays an important role in early childhood, understanding the factors that affect the practice of PA at an early age could help develop effective strategies for overcoming barriers and ... -
Article
Revising the formation and electronic properties in flavylium derivatives. A theoretical tandem towards optimized DSSCs (2021)
(Royal Society of Chemistry, 2021-03-07)We attempted to describe a set of flavylium derivative molecules through quantum density functional methods, which may lead to a better understanding of the physicochemical properties of these organic systems. Consequently, ... -
Article
Russian influence in the Czech Republic as a grey zone case study (2021)
(Sciendo, 2021-04-01)In recent years, the concept of grey zone has been popularised to analyse the activities a State can use to influence the decisions and to limit the strategic choices of another State below the threshold of war. This article ... -
Article
Antimicrobial effect against streptococcus mutans of an adhesive system with copper and zinc oxide nanoparticles (2021)
(Editorial Ciencias Medicas, 2020)Objective: Determine the antimicrobial properties of the incorporation of copper and zinc oxide nanoparticles into a total rinse and etch adhesive against Streptococcus mutans in patients with composite resin restorations ... -
Article
Streptococcus mutans count on restorations made with adhesive with and without loading zinc and copper oxide nanoparticles (2021)
(Editorial Ciencias Medicas, 2020)Objective: To determine the antimicrobial properties of the incorporation of zinc and copper oxide nanoparticles in an etching and total wash adhesive on Streptococcus mutans in patients with composite resin restorations ... -
Article
Postural control in children with overweight and obesity: A review of literature (2021)
(Universidad del Norte, 2020)Overweight and childhood obesity have become a global health problem. As the incidence and severity of overweight and obesity in children continue to rise, determining the physio-logical effects and functional consequences ... -
Article
Water and painting in chile in xixth. Century. composition, light and colour according by A. Smith, C. Wood and T. Somerscales (2021)
(Universidad de los Lagos, 2020)The present article has the purpose to offer an analysis of the evolution of chilean painting during the 19th century, investigated from the interpretation of the water in the pictorial production of three of the most ... -
Article
Levels of physical activity in children and adolescents with asthma: A systematic review and meta-analysis (2021)
(John Wiley and Sons Inc, 2021)Background: In children and adolescents with asthma, the disease may reduce the perceived capability to participate in physical activity (PA) contributing to an increase in the sedentary lifestyle. The literature is unclear ...