Francisco Altimiras

ORCID: 0000-0003-1992-8338
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About
Contact & Profiles
Research Areas
  • Optimization and Packing Problems
  • Metaheuristic Optimization Algorithms Research
  • Genetics and Neurodevelopmental Disorders
  • Vehicle Routing Optimization Methods
  • Optimization and Search Problems
  • Alzheimer's disease research and treatments
  • Pharmacological Receptor Mechanisms and Effects
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Smart Agriculture and AI
  • Horticultural and Viticultural Research
  • Advanced Manufacturing and Logistics Optimization
  • Insect behavior and control techniques
  • Biochemical effects in animals
  • Greenhouse Technology and Climate Control
  • Protein Degradation and Inhibitors
  • Quantum-Dot Cellular Automata
  • Neurological Disorders and Treatments
  • Occupational Health and Safety Research
  • Epilepsy research and treatment
  • Infrastructure Maintenance and Monitoring
  • Plant Gene Expression Analysis
  • Bioinformatics and Genomic Networks
  • Gut microbiota and health
  • Advanced Bandit Algorithms Research
  • Ubiquitin and proteasome pathways

University of the Americas
2020-2024

Pontificia Universidad Católica de Valparaíso
2019-2024

Inria Chile
2024

Adolfo Ibáñez University
2017-2018

Dirección de Investigación y Desarrollo
2017-2018

Production Development Corporation
2017

Fraunhofer Chile Research Foundation
2015-2017

University of Chile
2015

Early detection of Lobesia botrana is a primary issue for proper control this insect considered as the major pest in grapevine. In article, we propose novel method L. recognition using image data mining based on clustering segmentation with descriptors which consider gray scale values and gradient each segment. This system allows 95 percent non-fully controlled lighting, zoom, orientation environments. Our capture application currently implemented mobile subsequent processing done cloud.

10.1155/2017/5137317 article EN cc-by Complexity 2017-01-01

The progress of metaheuristic techniques, big data, and the Internet things generates opportunities to performance improvements in complex industrial systems. This article explores application Big Data techniques implementation algorithms with purpose applying it decision‐making processes. exploration intends evaluate quality results convergence times algorithm under different conditions number solutions processing capacity. Under what can we obtain acceptable an adequate iterations? In this...

10.1155/2018/8395193 article EN cc-by Complexity 2018-01-01

The integration of machine learning techniques and metaheuristic algorithms is an area interest due to the great potential for applications. In particular, using these hybrid solve combinatorial optimization problems (COPs) improve quality solutions convergence times in operations research. this article, db-scan unsupervised technique explored with goal it binarization process continuous swarm intelligence algorithms. contribution operator analyzed systematically through design random...

10.1155/2019/3238574 article EN Computational Intelligence and Neuroscience 2019-09-16

La producción intensiva de cerdos es un sistema para criar grandes cantidades animales en instalaciones cerradas y controladas maximizar el rendimiento reducir los costos. Sin embargo, este enfoque ha sido criticado debido a preocupaciones sobre bienestar animal, la sostenibilidad ambiental uso excesivo antibióticos. Considerando relevancia último punto, presente revisión tuvo como objetivo evaluar evidencia disponible presencia genes resistencia compuestos antimicrobianos cultivos...

10.20937/rica.55128 article ES cc-by-nc Revista Internacional de Contaminación Ambiental 2025-03-24

The human gut microbiome is the ecosystem of microorganisms that live in digestive system. Several studies have related variants to metabolic, immune and nervous system disorders. Fragile X syndrome (FXS) a neurodevelopmental disorder considered most common cause inherited intellectual disability leading monogenetic autism. role FXS remains largely unexplored. Here, we report results analysis using mouse model 16S ribosomal RNA gene sequencing. We identified alterations fmr1 KO2 associated...

10.3389/fnins.2021.653120 article EN cc-by Frontiers in Neuroscience 2021-05-26

Alzheimer's disease (AD) is the most common cause of dementia, affecting more than 36 million people worldwide. Octodon degus, a South American rodent, has been found to spontaneously develop neuropathological signs AD, including amyloid-β (Aβ) and tau deposits, as well decline in cognition with age. Firstly, present work introduces novel behavioral assessment for O. degus - burrowing test which appears be useful tool detecting neurodegeneration model AD. Such characterization potentially...

10.2174/1567205012666150324181652 article EN Current Alzheimer Research 2015-04-27

Fragile X syndrome (FXS), a disorder of synaptic development and function, is the most prevalent genetic form intellectual disability autism spectrum disorder. FXS mouse models display clinically-relevant phenotypes, such as increased anxiety hyperactivity. Despite their availability, so far advances in drug have not yielded new treatments. Therefore, testing novel drugs that can ameliorate FXS' cognitive behavioral impairments imperative. ANAVEX2-73 (blarcamesine) sigma-1 receptor (S1R)...

10.1038/s41598-021-94079-7 article EN cc-by Scientific Reports 2021-08-25

Optimization techniques, specially metaheuristics, are constantly refined in order to decrease execution times, increase the quality of solutions, and address larger target cases. Hybridizing techniques one these strategies that particularly noteworthy due breadth applications. In this article, a hybrid algorithm is proposed integrates k-means generate binary version cuckoo search technique, strengthened by local operator. The applied NP-hard Set-Union Knapsack Problem. This problem has...

10.3390/math9202611 article EN cc-by Mathematics 2021-10-16

Abstract Fragile X syndrome (FXS), an X-chromosome linked intellectual disability, is the leading monogenetic cause of autism spectrum disorder (ASD), a neurodevelopmental condition that currently has no specific drug treatment. Building upon demonstrated therapeutic effects on spatial memory bryostatin-1, relatively activator protein kinase C (PKC)ε, (also PKCα) impaired synaptic plasticity/maturation and learning in FXS mice, we investigated whether bryostatin-1 might affect autistic...

10.1038/s41598-020-74848-6 article EN cc-by Scientific Reports 2020-10-22

In agricultural production, it is fundamental to characterize the phenological stage of plants ensure a good evaluation development, growth and health crops. Phenological characterization allows for early detection nutritional deficiencies in that diminish productive yield drastically affect quality their fruits. Currently, estimation development grapevine (Vitis vinifera) carried out using four different schemes: Baillod Baggiolini, Extended BBCH, Eichhorn Lorenz, Modified E-L. requires...

10.3390/agronomy14030613 article EN cc-by Agronomy 2024-03-19

DATA REPORT article Front. Aging Neurosci., 20 March 2017Sec. Alzheimer's Disease and Related Dementias Volume 9 - 2017 | https://doi.org/10.3389/fnagi.2017.00064

10.3389/fnagi.2017.00064 article EN cc-by Frontiers in Aging Neuroscience 2017-03-19

The degu ( Octodon degus ) is a diurnal long-lived rodent that can spontaneously develop molecular and behavioral changes mirror those seen in human aging. With age some degu, but not all individuals, cognitive decline brain pathology like observed Alzheimer's disease including neuroinflammation, hyperphosphorylated tau amyloid plaques, together with other co-morbidities associated aging such as macular degeneration, cataracts, alterations circadian rhythm, diabetes atherosclerosis. Here we...

10.3389/fnagi.2022.894994 article EN cc-by Frontiers in Aging Neuroscience 2022-06-30

Retraction : “Nrf2: a novel therapeutic target in fragile X syndrome is modulated by NNZ2566” R. M. J. Deacon, Hurley, C. Rebolledo, Snape, F. Altimiras, L. Farías, Pino, Biekofsky, Glass and P. Cogram. The above article, from Genes, Brain Behavior, published online on 12th May 2017 Wiley Online Library ( wileyonlinelibrary.com ), has been retracted agreement between the journal Editor Chief, Andrew Holmes John & Sons Ltd. retraction agreed as all authors cannot agree revised author...

10.1111/gbb.12373 article EN Genes Brain & Behavior 2017-02-17

The binarization mechanisms of continuous metaheuristics are interest in operational research. This is mainly due to the fact that there a lot combinatorial problems NP-hard. In this article, we exploit concept percentile as mechanism swarm intelligence metaheuristics. To evaluate behavior our binary operator, Multi-verse metaheuristic used and applied solve problem knapsack. algorithm obtained, multi-verse Optimizer (BMVO) shows good performance solving most difficult

10.29333/jisem/6348 article EN Journal of Information Systems Engineering & Management 2019-12-07

Abstract Fragile X syndrome (FXS), a disorder of synaptic development and function, is the most prevalent genetic form intellectual disability autism spectrum disorder. FXS mouse models display clinically-relevant phenotypes, such as increased anxiety hyperactivity. Despite their availability, so far advances in drug have not yielded new treatments. Therefore, testing novel drugs that can ameliorate FXS’ cognitive behavioral impairments imperative. ANAVEX2-73 (blarcamesine) sigma-1 receptor...

10.21203/rs.3.rs-189177/v1 preprint EN cc-by Research Square (Research Square) 2021-02-23
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