Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

63 articles for “O. Garcia”
Set a search alert
Research ArticleOpen accessIn the author namesSTRINGENT LIMITS FOR THE MAGNETIC FIELD FROM EARLY UNIVERSE DYNAMOS IN RF2 COSMOLOGY WITH TORSIONL. C. Garcia de AndradeBamba et al. (2012) have obtained cosmological magnetic fields in teleparallel torsion theories of gravity that are not compatible with galactic dynamos. This result agrees with previous ones obtained by the author which shows Garcia de Andrade (1999) that anti-dynamo generalised theorem to torsion theories forbides such kind of dynamos to explain galactic magnetic fields of the order of µG. … …Physics International, Vol. 5, Issue 1 · 27 Mar 2014 · 7,857 accessesView PDFCite
Research ArticleOpen accessIn the author namesComparative Genomics of Xylella fastidiosa Subsp. Pauca and Insights on its Current and Potential Movements in EcuadorCarlos Bolanos-Carriel, Eliana Granja Guerra, Jaris Veneros et al.Xylella fastidiosa subsp. Pauca causes Coffee Leaf Scorch (CLS). It is a major threat to coffee production in most South and Central American countries. X. fastidiosa is prone to intersubspecific recombination, and it is believed that this species became pathogenic in citrus and coffee due to recent mutation events and gene flow between closely related strains. CLS epidemics have not … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 23 Nov 2024 · 6,176 accessesView PDFCite
Research ArticleOpen accessIn the author namesEvaluation of the Optimal Dose of Gibberellic Acid (Full Gib) in the Induction of Sprouting of Yungay Potato Variety Tuber (Solanum tuberosum L.)Wilfredo Ruiz Camacho, Danny Villegas-Rivas, José Manuel Palacios Sánchez et al.This research was carried out in the district of Luya, province of Chachapoyas, Amazonas, with the objective of evaluating the optimal dose of gibberellic acid (Full Gib) in the induction of sprouting of potato tubers (Solanum tuberosum L.) Yungay variety. A Completely Randomized Design (CRD) with two factors three replications and seven treatments was used. Minitat 17 statistical software, ANOVA, … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 24 Jul 2024 · 6,154 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Mother Plant and Somatic Embryo Registry for the Propagation and Conservation of Artificial Seeds of the Orchid Phragmipedium kovachiiOsber Cunia, Manuel Oliva, Segundo G. Chavez et al.Phragmipedium kovachii, is an endemic orchid that naturally inhabits the humid zones of the Amazonas region in Peru. Currently, it has been extracted from its natural habitat, listed as critically endangered by CITES, suggesting searching for conservation strategies in vitro and in situ. Therefore, this research established an in vitro protocol to obtain and conserve artificial seed, through four events: … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 8 Jul 2024 · 5,315 accessesView PDFCite
Research ArticleOpen accessIn the author namesBacteriological Assessment of Rainbow Trout (Oncorhynchus mykiss) Subjected to Low-Temperature StorageRomán Alejandro Téllez-Cortez, Ángel Ruyan García-Hurtado, Mayra Diaz-Ramírez et al.Fish is a food with high nutritional value and an essential part of the human diet. However, this food is highly perishable and poses a health risk when contaminated along the food chain, requiring preservation processes at low temperatures. Trout (Oncorhynchus mykiss) is one of the most widely produced and marketed fish species for human consumption worldwide, through products such … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 31 Jul 2026 · 1,016 accessesView PDFCite
Research ArticleOpen accessIn the author namesWastewater Treatment Using Organic By-Products from Agroindustry: A Case Study in the District of Valera, Amazonas Region, Northern PeruEli Morales-Rojas, Sayda Karina García Caro et al.This research evaluates the use of two types of coagulants based on organic by-products (orange and passion fruit) in wastewater (RA) treatment. The system was composed of glass tanks installed in parallel. The coagulants were elaborated and applied in aqueous solution and in powder form, and 7 physicochemical and microbiological parameters were also analyzed. Data analysis was performed using a … …OnLine Journal of Biological Sciences, Vol. 26, Issue 2 · 2 Jul 2026 · 1,179 accessesView PDFCite
Review ArticleOpen accessIn the author namesBotanic Products as a Sustainable Alternative in the Control of Rice and Grape Pests in South AmericaRicardo Diego Duarte Galhardo de Albuquerque, Frank Romel Leon-Vargas, Carmen Cerdeña del Aguila et al.Pests present a major threat to agricultural crops, leading to diminished yields, economic losses, and potential food insecurity. In South America, rice and grape cultivation have become increasingly significant due to their economic value, contribution to food security, and role in exports. However, these crops are vulnerable to pests such as Oebalus poecilus, Hydrellia wirthi, and Pseudococcus viburni. The reliance … …OnLine Journal of Biological Sciences, Vol. 25, Issue 2 · 19 Feb 2025 · 5,315 accessesView PDFCite
Research NotesOpen accessIn the author namesOvarian Follicular Dynamics in Caqueteño Creole Cattle Breed at the Colombian Amazon PiedmontLópez-Rojas Robinson, Celis-Parra Gustavo, Tovar-Claros Gilberto et al.Caqueteño creole cattle breed is part of the eight Colombian creole cattle breeds. These breeds are characterized by having great adaptive potential to the environmental conditions in which they are found and allowing them greater productive efficiency. Caqueteño creole cattle is a breed in danger of extinction according to parameters referenced by FAO, since it is a population of cattle … …American Journal of Animal and Veterinary Sciences, Vol. 14, Issue 2 · 3 May 2019 · 8,511 accessesView PDFCite
Research ArticleOpen accessIn the author namesFormation of Post-Fire Water Repellent Layers on Nothofagus glauca (Hualo) Forests, After the Historical “Las Máquinas” Wildfire in South-Central ChilePablo A. Garcia-Chevesich, Eduardo Martínez, Alejandro García et al.The Chilean summer of 2017 was the worst wildfire season by far. Hundreds of wildfires burned a total of more than half a million hectares of forested land (native forests and forest plantations). A significant portion of the burned area was occupied by Hualo (Nothofagus glauca (Phil.) Krasser), a native forest species widely distributed in central Chile. Using the water-drop-penetration-time … …American Journal of Environmental Sciences, Vol. 15, Issue 1 · 15 Jan 2019 · 9,391 accessesView PDFCite
Research ArticleOpen accessIn the author namesUnicycle Robot’s Navigation Control with Obstacle Avoidance and Asymptotic StabilityJuan Andrés Roteta Lannes, Andres Gabriel GarciaThis study builds upon the groundbreaking research of Asymptotic stability of unicycle-like robots with the Bessel’s controller continuing the exploration of asymptotic stability for non-holonomic robots through kinematic modeling that allows for obstacle avoidance. utilizing the previously derived Bessel's controller, the study defines an avoidance region containing obstacles, presenting an algorithm that relies solely on the distance to the obstacle. … …American Journal of Engineering and Applied Sciences, Vol. 17, Issue 1 · 28 Feb 2024 · 5,045 accessesView PDFCite