Buscador de Tesis y publicaciones académicas

Endodontic Management of Traumatized Permanent Teeth in the Pediatric Patient: Narrative Review

Fraulenzing Torres Morillo · Sandy Arias Arias · Catalina Diaz Cardenas · Guillermina Arias · y 2 más

Traumatic dental injuries in children and adolescents commonly affect the anterior permanent teeth and can threaten pulp vitality, root development and long-term survival. Management is more challenging in immature teeth, where the right choice depends on the type of injury, the state of the pulp and the extent of root...

FINAL OPERATING PROTOCOL: Preparation and characterization of formulations honey–CBD–spirulina at microscale v1

Jimmy Morales-Morales

This protocol describes the microscale preparation and physicochemical characterization of honey–CBD–spirulina formulations subjected to three homogenization strategies: no ultrasound (NU), eight-tip multi-probe sonotrode (S), and ultrasonic bath (B). Independent formulations are prepared using two honey matrices and r...

Uso de mezcla hipóxica en un lactante con cardiopatía congénita de hiperflujo pulmonar y bronquiolitis aguda moderada: reporte de caso

Laura C. González-Hakspiel · Aylem N. Fonseca-Meneses · Andrés F. Rubio-Duarte · Keyla M. Meneses-Silvera

Variabilidad de la calidad de la madera en pie de Pinus spp. en localidades de los Andes colombianos.

Ricardo Andrés Oviedo Celis · Adriana Espinel Cuadros · Herwin Ramiro Roa Caicedo · Ronald Alfonso Montañez Valencia

La reforestación comercial constituye una actividad productiva orientada al uso de especies forestales de rápido crecimiento para el suministro de madera. Este estudio evaluó la variabilidad de propiedades de la madera en pie de especies del género Pinus, con el fin de determinar su calidad. El trabajo se desarrolló en...

Mercury Transport in a Soil-bentonite Backfill for Slurry Trench Cutoff Walls

Hebenly CELIS LEGUIZAMO · Joan M. LARRAHONDO · Alejandro PÉREZ FLÓREZ · Jeffrey C. EVANS · y 3 más

Abstract In many countries, artisanal and small-scale gold mining (ASGM) has significant environmental impacts, partly due to the use of mercury in the gold extraction process. This study investigates the use of soil-bentonite (SB) mixtures, similar to those used in the construction of slurry trench cutoff walls, as ba...

Formando investigadores en Publicidad y Mercadeo: Estrategias pedagógicas basadas en metodologías cualitativas

Edwin Herrera Ruiz · Rosa Alexandra Chaparro Guevara

La enseñanza de la investigación en los programas de Publicidad y Mercadeo enfrenta tradicionalmente una desconexión entre la teoría abstracta y la práctica profesional, lo cual genera desmotivación en el estudiantado. Con el fin de abordar esta problemática, el presente estudio analiza el impacto pedagógico de dos est...

Mediación tecnológica situada para la enseñanza de las matemáticas en contextos de precariedad conectiva

Leonar Socarras Molina

This article develops the second line of flight of a Participatory Action Research study with a post-qualitative opening conducted in a public school in Valledupar, Colombia, namely situated technological mediation. In a classroom with intermittent connectivity and limited equipment, the proposal articulated free softw...

Effects of Copper Sulfate (CuSO₄) on red tilapia fingerlings (Oreochromis sp.)

Andrés J. Bonilla-Reyes · Jonathan F. Villamil-Rodríguez · Jonny Andrés Yepes Blandón · José A. Rodríguez-Pulido

Pathogens represent a significant threat to aquaculture, with detrimental effects on the survival of farmed fish. To control these infections, copper sulfate (CuSO₄) has been used as a chemotherapeutic treatment. However, its use presents challenges, as the optimal concentration to minimize adverse health effects in ce...

A New Bis(8-hydroxyquinolinylmethyl) Perhydrobenzimidazole Obtained from a Cyclic Aminal Derived from trans-1,2-Diaminocyclohexane and 8-Hydroxyquinoline

Augusto Rivera · Jaime Ríos-Motta · Diego Quiroga

The reaction of 8-hydroxyquinoline and (2R,7R,11S,16S)-1,8,10,17-tetraazapentacyclo [8.8.1.1.8,170.2,70.11,16]icosane under Mannich-type conditions afforded a new quinoline-functionalized diazabicyclic derivative in 27% yield. The structure of the product was established by FT-IR, 1H and 13C NMR, HSQC, HMBC, and ESI-MS...

Quality seedling systems for sustainable urban agriculture: evidence from four rapidly urbanizing cities in Africa and Asia

Danny Coyne · Eva I. Nyambura · Janet G. Atandi · Forah Obebo · y 6 más

Rapid urbanization is placing increasing pressure on cities to deliver affordable, nutritious, and resilient food systems, yet vegetable seedling systems remain a neglected component of urban agriculture. This study assessed urban and peri urban vegetable seedling systems in four rapidly growing cities Addis Ababa (Eth...