Análisis bibliométrico del efecto de la luz en la producción de ficobiliproteínas

The purpose of the research is to make known the importance of the use of light as a mechanism of the utilization of microalgae for the production of phycobiliproteins, as a contribution to industrial biotechnology, which provides information on conditions and crop parameters, since several studies have shown that red light favors the growth of biomass, while red and blue wavelengths commonly promote the concentration and production of phycobiliproteins, which depends on the genus, species, strain, and environmental conditions, as well as their native conditions, since this mechanism is generated as an adaptive response, so it is necessary to investigate to understand these phenomena. The methodology was based on a documentary analysis through VOSviewer using the Web Of Science database, in which the words "Microalgae Pigment Light effect" were used which allowed us to conclude that there is a correlation of words focused on the production of biofuels, such as carotenoids, anthoxanthin, beta carotenes, and lutein, taking advantage of the use of light as a determining factor, taking into account that the strains that are most related to these studies are: Spirulina plantesis, Chrorella Vulgaris and chlamydomonas reinhardtii. The knowledge of the application of these pigments is wide, so the study of pigment production from microalgae evaluating the effect of light has become a topic of great interest, especially for the pigment market.En la actualidad, diversos estudios han demostrado que la luz roja favorece el crecimiento de la biomasa, mientras que, comúnmente, longitudes de ondas rojas y azules promueven la concentración y producción de ficobiliproteínas, lo cual depende del género o especie, y de las condiciones del medio, así como de sus condiciones nativas, pues este mecanismo se genera como respuesta de adaptación, por lo que se hace necesario indagar para comprender estos fenómenos. En este orden de ideas, el propósito de esta investigación fue dar a conocer la importancia del aprovechamiento de la luz, como mecanismo de utilización de las microalgas para la producción de ficobiliproteínas, como contribución a la biotecnología industrial, la cual brinda información sobre condiciones y parámetros cultivos. La metodología de estudio se basó en un análisis documental a través de VOSviewer, usando la base de datos Web of Science, en la cual se utilizaron las palabras “Microalgae Pigment Light effect”. Con base en lo anterior, se pudo determinar que existe una correlación de palabras enfocadas a la producción de biocombustibles, como carotenoides, antoxantina, betacarotenos y luteína, aprovechando el uso de la luz como factor determinante, teniendo en cuenta que las cepas que más se relacionan con estos estudios son: Spirulina plantesis, Chrorella vulgaris y Chlamydomonas reinhardtii. El conocimiento de la aplicación de estos pigmentos es amplio, por lo que el estudio de la producción de pigmentos a partir de microalgas, evaluando el efecto de la luz, se ha convertido en un tema de gran interés, en especial para el mercado de pigmentos

Asymbiotic seed germination and in vitro propagation of Cattleya trianae Linden and Reichb.f. (Orchidaceae)

Cattleya trianae (Linden and Reichb.f., 1860), Colombian national flower, is in danger of extinction due to the destruction of its natural habitats and excessive collection for horticultural purposes. Therefore, in vitro culture is a tool for the conservation of threatened species. In this study we determined the most suitable culture medium for asimbytic seed germination and in vitro propagation of C. trianae. Initially, mature capsules were collected, the seeds were subsequently disinfected and seeded with the syringe method (Vendrame et al., 2007), to evaluate the effect of five media on the development of C. trianae after 20 weeks. The seedlings were transplanted and acclimated using different substrates. The best percentage (54.2%) of seedling formation after 20 weeks was found in MS + JP medium with significant differences (P 0.05: Tukey HSD). In this research, it is reported that the addition of organic additives to the MS medium improves the efficacy of this, and therefore, allows a greater growth and development of C. trianae under in vitro conditions.Cattleya trianae (Linden and Reichb.f., 1860), Colombian national flower, is in danger of extinction due to the destruction of its natural habitats and excessive collection for horticultural purposes. Therefore, in vitro culture is a tool for the conservation of threatened species. In this study we determined the most suitable culture medium for asimbytic seed germination and in vitro propagation of C. trianae. Initially, mature capsules were collected, the seeds were subsequently disinfected and seeded with the syringe method (Vendrame et al., 2007), to evaluate the effect of five media on the development of C. trianae after 20 weeks. The seedlings were transplanted and acclimated using different substrates. The best percentage (54.2%) of seedling formation after 20 weeks was found in MS + JP medium with significant differences (P 0.05: Tukey HSD). In this research, it is reported that the addition of organic additives to the MS medium improves the efficacy of this, and therefore, allows a greater growth and development of C. trianae under in vitro conditions

Relaciones evolutivas de los peces Prochilodus reticulatus y Prochilodus magdalenae (Characiformes: Prochilodontidae)

A  phylogenetic  study  was  carried  out  between  the  species  Prochilodus  reticulatus (Valenciennes, 1850) and P. magdalenae (Steindachner, 1879) of great socioeconomic value in the country. Initially, the species were collected for DNA extraction and subsequent characterization by RAPD-PCR to establish their phylogenetic relationships using the Jaccard coefficient and the UPGMA method. The phylogenetic analysis of P. reticulatus and P. magdalenae showed a close genetic relationship, which suggests that the differences found between them may not be considered significant.Se realizó un estudio filogenético entre las especies Prochilodus reticulatus (Valenciennes, 1850) y P. magdalenae (Steindachner, 1879) de gran valor socioeconómico en el país. Inicialmente, las especies fueron colectadas para la extracción del ADN y su posterior caracterización mediante RAPD-PCR para establecer sus relaciones filogenéticas empleando el coeficiente de Jaccard y el método UPGMA. El análisis filogenético de P. reticulatus y P. magdalenae mostró una estrecha relación genética, lo que sugiere que las diferencias encontradas entre ellas pueden considerarse no significativas

Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTIC‐HF: baseline characteristics and comparison with contemporary clinical trials

Aims: The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTIC‐HF) trial. Here we describe the baseline characteristics of participants in GALACTIC‐HF and how these compare with other contemporary trials. Methods and Results: Adults with established HFrEF, New York Heart Association functional class (NYHA) ≥ II, EF ≤35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokinetic‐guided dosing: 25, 37.5 or 50 mg bid). 8256 patients [male (79%), non‐white (22%), mean age 65 years] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NT‐proBNP 1971 pg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTIC‐HF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressure < 100 mmHg (n = 1127), estimated glomerular filtration rate < 30 mL/min/1.73 m2 (n = 528), and treated with sacubitril‐valsartan at baseline (n = 1594). Conclusions: GALACTIC‐HF enrolled a well‐treated, high‐risk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Uso del portafolio como herramienta didáctica para el desarrollo de competencias en los estudiantes que cursan la asignatura de bioquímica agroindustrial en los procesos metabólicos de las biomolecular

La presente investigación se inició con un trabajo basado en la revisión Bibliográfica, con miras al análisis del portafolio y sus aplicaciones, de igual manera, la implementación de esta herramienta didáctica en el proceso educativo, buscando el fortalecimiento de los conocimientos y el desarrollo de competencias interpretativas, se realizó una entrevista semiestructurada a los estudiantes con los cuales se trabajó, extrayendo de manera inductiva una serie categorías ordenadas, lo que permitió realizar un análisis importante de los resultados obtenidosMaestríaMagíster en Práctica Pedagógic

Asymbiotic seed germination and in vitro propagation of Cattleya trianae Linden & Reichb.f. (Orchidaceae)

Cattleya trianae (Linden & Reichb.f., 1860), Colombian national flower, is in danger of extinction due to the destruction of its natural habitats and excessive collection for horticultural purposes. Therefore, in vitro culture is a tool for the conservation of threatened species. In this study we determined the most suitable culture medium for asimbytic seed germination and in vitro propagation of C. trianae. Initially, mature capsules were collected, the seeds were subsequently disinfected and seeded with the syringe method (Vendrame et al., 2007), to evaluate the effect of five media on the development of C. trianae after 20 weeks. The seedlings were transplanted and acclimated using different substrates. The best percentage (54.2%) of seedling formation after 20 weeks was found in MS + JP medium with significant differences (P <0.05: Tukey HSD). In this research, it is reported that the addition of organic additives to the MS medium improves the efficacy of this, and therefore, allows a greater growth and development of C. trianae under in vitro conditions

Asymbiotic seed germination and in vitro propagation of Cattleya trianae Linden & Reichb.f. (Orchidaceae)

Cattleya trianae (Linden & Reichb.f., 1860), Colombian national flower, is in danger of extinction due to the destruction of its natural habitats and excessive collection for horticultural purposes. Therefore, in vitro culture is a tool for the conservation of threatened species. In this study we determined the most suitable culture medium for asimbytic seed germination and in vitro propagation of C. trianae. Initially, mature capsules were collected, the seeds were subsequently disinfected and seeded with the syringe method (Vendrame et al., 2007), to evaluate the effect of five media on the development of C. trianae after 20 weeks. The seedlings were transplanted and acclimated using different substrates. The best percentage (54.2%) of seedling formation after 20 weeks was found in MS + JP medium with significant differences (P <0.05: Tukey HSD). In this research, it is reported that the addition of organic additives to the MS medium improves the efficacy of this, and therefore, allows a greater growth and development of C. trianae under in vitro conditions

Evolutionary Relationships of the Fish Prochilodus reticulatus and Prochilodus magdalenae (Characiformes: Prochilodontidae).

Se realizó un estudio filogenético entre las especies Prochilodus reticulatus (Valenciennes, 1850) y P. magdalenae (Steindachner, 1879) de gran valor socioeconómico en el país. Inicialmente, las especies fueron colectadas para la extracción del ADN y su posterior caracterización mediante RAPD-PCR para establecer sus relaciones filogenéticas empleando el coeficiente de Jaccard y el método UPGMA. El análisis filogenético de P. reticulatus y P. magdalenae mostró una estrecha relación genética, lo que sugiere que las diferencias encontradas entre ellas pueden considerarse no significativas

Las organizaciones desde una mirada del desarollo sostenible

En el presente libro se articulan en dos líneas, a saber, las organizaciones desde la región y las organizaciones desde el emprendimiento y la gestión. En la primera se analizan diferentes temáticas que dejan ver el uso adecuado de la ciencia y la tecnología, reconociendo el rol de los sectores tanto público como privado y de la sociedad civil en el desarrollo, productividad y competitividad de las organizaciones, por lo que se tienen temáticas como normas internacionales, emprendimiento, tasa representativa del mercado, direccionamiento estratégico en el sector de obras civiles, precios internos y externos del tipo de cambio, que permitan comprender la dinámica contemporánea de las organizaciones, a partir de las experiencias de los diferentes actores que participan en escenarios inclusivos, con el propósito de evidenciar los elementos de competitividad y perdurabilidad que contribuyen a la internacionalización organizacional.La segunda línea trata de las organizaciones en la región, donde se muestran resultados de investigaciones, como las tendencias mundiales en el sector funerario, estrategias de innovación empresarial y responsabilidad social empresarial para Mipymes. Usos agroindustriales de la hoja de coca, factores de competitividad en la ganadería, en el sector metalmecánico, redes socio institucionales en el sector lácteo, imagen comercial de empresario, estrategia de encadenamiento, patios productivos, aplicación del modelo desing thinking, gestión del conocimiento en Mipymes industriales, ecosistema de emprendimiento, microempresas sostenibles, territorios de paz que dejan ver las nuevas tendencias y temáticas de creatividad e innovación para fortalecer la pedagogía, las competencias, las redes de emprendimiento a través de las herramientas, modelos y estructuras de los esquemas emprendedores, que permitan la continua evolución de los mercados emergentes y sus diferentes actores