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Ítem Solo Metadatos 2021 DORIS definition of remission in SLE: final recommendations from an international task force(BMJ Publishing Group, 2021)Objective To achieve consensus on a definition of remission in SLE (DORIS). Background Remission is the stated goal for both patient and caregiver, but consensus on a definition of remission has been lacking. Previously, an international task force consisting of patient representatives and medical specialists published a framework for such a definition, without reaching a final recommendation. Methods Several systematic literature reviews were performed and specific research questions examined in suitably chosen data sets. The findings were discussed, reformulated as recommendations and voted on. Results Based on data from the literature and several SLE-specific data sets, a set of recommendations was endorsed. Ultimately, the DORIS Task Force recommended a single definition of remission in SLE, based on clinical systemic lupus erythematosus disease activitiy index (SLEDAI)=0, Evaluator’s Global Assessment <0.5 (0–3), prednisolone 5 mg/day or less, and stable antimalarials, immunosuppressives, and biologics. Conclusion The 2021 DORIS definition of remission in SLE is recommended for use in clinical care, education, and research including clinical trials and observational studies. © 2021 BMJ Publishing Group. All rights reserved.Ítem Solo Metadatos Ítem Solo Metadatos 2D–3D comparison of the temporomandibular joint in skeletal Class II versus Class I adults: a retrospective study(Elsevier Masson s.r.l., 2020)Objective: To compare the temporomandibular joint (TMJ) morphological characteristics in people with Class II versus Class I sagittal skeletal relationship and to identify other factors that influence the TMJ dimensions. Material and methods: This cross-sectional and retrospective study evaluated 188 people divided into two groups, 92 cone-beam computed tomographies (CBCTs) and lateral radiographs (LR) of people with Skeletal class II relationship with Class II division 1 malocclusion versus 96 CBCTs and LR of people with Class I skeletal relationship and Class I malocclusion (controls). The CBCTs included people of both sexes, aged between 15 and 65 years old. The 3D Imaging Carestream Software was used to evaluate the condyle height and neck width, mediolateral and anteroposterior condyle dimensions, the shape of the glenoid fossa and condyle in the CBCTs. Likewise, the ANB angle, the Wits appraisal and other measurements were evaluated on LR. Besides, Mann-Whitney U, Chi2 and multiple linear regression tests were performed. The significance level was set at P ˂ 0.05. Results: The mediolateral and anteroposterior condyle dimensions were smaller in class II people (1.82 mm and 0.29 mm, respectively) than class I people (P < 0.05). Likewise, height and neck width of condyle were smaller in class II people (0.73 mm and 0.40 mm, respectively) than class I people (P < 0.05). Multiple linear regression identified mainly the ANB angle as a factor (P < 0.05) that influenced the dimensions, decreasing the condyle dimensions in skeletal class II relationship. Conclusions: People with skeletal class II relationship showed smaller condyle dimension values than class I people. A decrease in the dimensions of the eminence and the condyle could be expected when the ANB angle increases. © 2020 Elsevier Masson SASÍtem Solo Metadatos A 10-year scientometric analysis of the characteristics of the worldwide publication on the toxic effects of fluoride(Jaypee Brothers Medical Publishers (P) Ltd, 2022)Aim: To perform a 10-year scientometric analysis of the characteristics of the worldwide publication on the toxic effects of fluoride.Materials and methods: A bibliometric study of the worldwide scientific production on the toxic effects of fluoride during the years 2011–2020 was performed. All metadata from the Scopus database were evaluated. These were then exported to SciVal (Elsevier) for analysis of quantity, collaboration, and impact indicators.Results: We found that the “Biological Trace Element Research” was the most productive journal with 22 published manuscripts and that the most productive universities on the systemic toxic effects of fluoride on the body were Shanxi Agricultural University, Guizhou Medical University, and Huazhong University of Science and Technology with 31, 11, and 10 manuscripts, respectively. In addition, it was found that most of the world scientific production on the toxic effects of fluoride was published in Q1 level journals (top 25%).Conclusion: Finally, it was concluded that most of the total production on this topic was published in high-impact Q1 journals, with China being the leading country in terms of number and impact of publications. Finally, there was evidence of collaboration between the United States, China, and India, being the countries that led in co-authorship by country.Clinical significance: This research is of clinical importance as it allows the identification of the most productive institutions, authors, and countries in this field. In this way, strategic alliances can be established to enhance the development of research © The Author(s). 2022 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted use, distribution, and non-commercial reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise statedÍtem Solo Metadatos A 10-year scientometrics analysis of brain tumors treated with gamma knife radiosurgery: visualization, characteristics, and scientific trends(Hindawi Limited, 2022)Objective. To evaluate the scientometrics characteristics of the scientific production on the treatment of brain tumors with gamma knife radiosurgery in Scopus. Methods. The Scopus database (Elsevier) was used to collect all relevant studies for this bibliometric analysis. Data was obtained as a.csv file; it was downloaded from Scopus and was exported by SciVal to Microsoft Excel for a presentation using tables for more detailed analysis. The citations and the number of papers for the most productive institutions, authors, countries, and journals publishing scientific papers were analyzed on the use of gamma knife radiosurgery for brain tumors. Results. 458 metadata were obtained from scientific publications, on which inclusion and exclusion criteria were applied, leaving 248 studies. The maximum peak of publications was 2018 with 31 publications, and the minimum peak was 2015 with 18. The most related subtopics were neurology, surgery, and oncology, and most of the retrieved papers had only institutional collaboration. As for more productive journals, Journal of Neurosurgery is first with 23 publications; within the countries with the most scientific publications, we have the United States, Japan, and China. With the United States being the country with the highest number of productions, University of Texas MD Anderson Cancer Center was the main university with the highest scientific production and Sheehan and Trifiletti and American authors dominate the list with the highest number of documents. Conclusion. Scientific production regarding gamma knife surgery and brain tumors has been increasing during the last 10 years, with a high incidence during 2018, and the highest number of published articles was in the first quartile. Likewise, the United States is the country with the most publications, authors, and universities on the subject. Greater efforts are still lacking from all countries in the world to reach the quantity and quality of production of the United States. © 2022 Walkiria Garcia-Fuentes et al.Ítem Solo Metadatos Ítem Acceso Abierto A beam-search approach to the set covering problem(Springer Verlag, 2016) Reyes, V.; Araya, I.; Crawford, B.; Soto, R.; Olguín, E.In this work we present a beam-search approach applied to the Set Covering Problem. The goal of this problem is to choose a subset of columns of minimal cost covering every row. Beam Search constructs a search tree by using a breadthfirst search strategy, however only a fixed number of nodes are kept and the rest are discarded. Even though original beam search has a deterministic nature, our proposal has some elements that makes it stochastic. This approach has been tested with a well-known set of 45 SCP benchmark instances from OR-Library showing promising results. © Springer International Publishing Switzerland 2016.Ítem Acceso Abierto A bi-objetive cat swarm optimization algorithm for set covering problem(Springer Verlag, 2016) Crawford, B.; Soto, R.; Caballero, H.; Olguín, E.In this paper, we study a classical problem in combinatorics and computer science, Set Covering Problem. It is one of Karp’s 21 NP-complete problems, using a new and original metaheuristic, Cat Swarm Optimization. This algorithm imitates the domestic cat through two states: seeking and tracing mode. The OR-Library of Beasley instances were used for the benchmark with additional fitness function, thus the problem was transformed from Mono-objective to Bi-objective. The Cat Swarm Optimization finds a set solution non-dominated based on Pareto concepts, and an external file for storing them. The results are promising for further continue in future work optimizing this problem. © Springer International Publishing Switzerland 2016.Ítem Solo Metadatos A bibliometric analysis of the Latin American research on stroke 2003–2017(Elsevier Inc., 2019)Background: Stroke is a leading cause of mortality and disability worldwide. Research activity in Latin American countries might be the key to solving, or at least improving, the understanding of stroke-related issues in the region. Our aim was to describe and analyze the research output on stroke in Latin America. Methods: We performed a bibliometric analysis of studies on stroke in Latin America reported from 2003 to 2017 in Scopus-indexed journals. We extracted the annual research, countries, journals, authors, institutions, citation frequency, and journal metrics. The data were quantitatively analyzed. Publication activity was adjusted to the countries by population size. Also, the results from an author and country co-occurrence analysis are presented as network visualization maps using VOSviewer. Results: A total of 2298 Latin American stroke-related reports were identified, most were original research reports (72%). The number of reported studies had increased from 2003 to 2017 (P < 0.001). Brazil was the country with the greatest production with 1273 reports (55.4%), followed by Argentina and Mexico. No association was found between stroke prevalence and mortality and the scientific production of the country. Six universities and three hospitals were the most prolific institutions. A collaborative relationship was found between the United States and Brazil, Argentina, and Mexico. The intraregional collaboration of research on stroke was low among Latin American countries. Conclusions: Despite the continuous increase in research output from Latin American countries, more effort is needed to strengthen the research capacity by developing networks and collaborative research projects, ideally among the Latin American countries themselves. © 2019 Elsevier Inc.Ítem Acceso Abierto A binary cat swarm optimization algorithm for the Non-Unicost set covering problem(Hindawi Publishing Corporation, 2015) Crawford B.; Berríos N.; Johnson F.; Paredes F.; Castro C.; Soto R.; Norero E.The Set Covering Problem consists in finding a subset of columns in a zero-one matrix such that they cover all the rows of the matrix at a minimum cost. To solve the Set Covering Problem we use a metaheuristic called Binary Cat Swarm Optimization. This metaheuristic is a recent swarm metaheuristic technique based on the cat behavior. Domestic cats show the ability to hunt and are curious about moving objects. Based on this, the cats have two modes of behavior: seeking mode and tracing mode. We are the first ones to use this metaheuristic to solve this problem; our algorithm solves a set of 65 Set Covering Problem instances from OR-Library. © 2015 Broderick Crawford et al.Ítem Acceso Abierto A binary coded firefly algorithm that solves the set covering problem(Editura Academiei Romane, 2014) Crawford, B.; Soto, R.; Olivares-Suárez, M.; Palma, W.; Paredes, F.; Olguín, E.; Norero, E.This work presents a study of a new binary coded firefly algorithm. The firefly algorithm is a novel nature-inspired metaheuristic, inspired by the social behavior of fireflies, which is being applied to solve many optimization problems. We test the proposed binary coded firefly algorithm solving the non-unicost set covering problem which is a well-known NP-hard discrete optimization problem with many practical applications. To tackle the mapping from a continuous search space to a discrete search space we use different transfer functions which are investigated in terms of convergence speed and accuracy of results. The experimental results show the effectiveness of our approach where the binary coded firefly algorithm produce competitive results solving a portfolio of set covering problems from the OR-Library.Ítem Acceso Abierto A binary fruit fly optimization algorithm to solve the set covering problem(Springer Verlag, 2015) Crawford, B.; Soto, R.; Torres-Rojas, C.; Peña, C.; Riquelme-Leiva, M.; Misra, S.; Johnson, F.; Paredes, F.The Set Covering Problem (SCP) is a well known NP-hard problem with many practical applications. In this work binary fruit fly optimization algorithms (bFFOA) were used to solve this problem using different binarization methods. The bFFOA is based on the food finding behavior of the fruit flies using osphresis and vision. The experimental results show the effectiveness of our algorithms producing competitive results when solve the benchmarks of SCP from the OR-Library. © Springer International Publishing Switzerland 2015.Ítem Acceso Abierto A binary invasiveweed optimization algorithm for the set covering problem(Springer Verlag, 2016) Crawford, B.; Soto, R.; Legüe, I.F.; Olguín, E.The Set Covering Problem (SCP) is a classic problem of combinatorial analytic. This problem consists in to find solutions what cover the needs to lower cost. Those can be services to cities, load balancing in production lines or databanks selections. In this paper,we study the resolution of SCP, through InvasiveWeed Optimization (IWO), in its binary version; Binary InvasiveWeed Optimization (BIWO). IWO, it is to imitate to InvasiveWeed behavior (reproduction and selection natural), through mathematics formulations. Where the best weed has more chance of reproduction. © Springer International Publishing Switzerland 2016.Ítem Acceso Abierto A black hole algorithm for solving the set covering problem(Springer Verlag, 2016) Soto, R.; Crawford, B.; Figueroa, I.; Niklander, S.; Olguín, E.The set covering problem is a classical optimization benchmark with many industrial applications such as production planning, assembly line balancing, and crew scheduling among several others. In this work, we solve such a problem by employing a recent nature-inspired metaheuristic based on the black hole phenomena. The core of such a metaheuristic is enhanced with the incorporation of transfer functions and discretization methods to handle the binary nature of the problem. We illustrate encouraging experimental results, where the proposed approach is capable to reach various global optimums for a well-known instance set from the Beasley’s OR-Library. © Springer International Publishing Switzerland 2016.Ítem Solo Metadatos A case series of vertical ridge augmentation using a nonresorbable membrane: a multicenter study(Quintessence Publishing Co. Inc., 2018)Vertical ridge augmentation (VRA) using titanium-reinforced dense polytetrafluorethylene (d-PTFE) membranes has been associated with promising clinical outcomes. This retrospective multicenter case series was prepared for the purpose of identifying the elements that contribute to the predictability of this surgical technique. VRA procedures were carried out in 35 patients (13 male and 22 female) with an age range of 43 to 76 years. The average bone gain was 5.44 mm. In the Kaplan-Meier estimates of cumulative survival calculated at 15 months, membrane exposure (P = .045) was a predictor for VRA. © 2018 by Quintessence Publishing Co Inc.Ítem Acceso Abierto A choice functions portfolio for solving constraint satisfaction problems: A performance evaluation(IEEE Computer Society, 2016) Soto, R.; Crawford, B.; Olivares, R.Constraint Programming (CP) allows to solve constraint satisfaction and optimization problems by building and then exploring a search tree of potential solutions. Potential solutions are generated by firstly selecting a variable and then a value from the given problem, phase known as enumeration. In this context, Autonomous Search (AS) that is a particular case of adaptive systems, enables the problem solver to control and adapt its internal configuration during solving time, based on performance metrics in order to be more efficient. The goal is to provide a mechanism for CP solvers, integrating a component able to evaluate the solving performance process. In particular, we employ a classic decision making method called Choice Function (CF). In this paper, we present an evaluation of different choice functions, based on performance exhibited in a indicators set. The results are promising and show that it is feasible to solve constraint satisfaction problems with this new technique. © 2015 IEEE.Ítem Solo Metadatos A comparative evaluation of endodontically treated root canals obturated using gutta-percha with two different protocols: an in-vitro study(Wolters Kluwer (UK) Ltd., 2021)Objective: The aim of this article is to evaluate the quality of filling in endodontically treated root canals using the lateral condensation technique and modified lateral condensation technique. Materials and Methods: Thirty-two single-rooted teeth were divided into two groups that were assigned by simple randomization according to the filling technique. Once the endodontic treatment was performed, a periapical radiograph was taken to assess the quality according to the radiographic density and tomography was taken to evaluate the quality according to the tomographic volume of spaces, compared with the post-preparation biomechanical tomography. Finally, we performed a statistical analysis (Student's t-test) to evaluate whether there were differences between the types of filling. Results: Radiographic radiodensity was 182.89 ± 9.81 and 186.72 ± 6.97 HU for teeth treated with the lateral condensation technique and modified lateral condensation technique, respectively. The void volume was 3.75 ± 2.35 and 2.43 ± 1.18 mm 3 for teeth treated with the lateral condensation technique and modified lateral condensation technique, respectively. Conclusion: No significant differences were found between the techniques for both filling quality parameters. © 2021 Wolters Kluwer (UK) Ltd.. All rights reserved.Ítem Acceso Abierto A comparison of three recent nature-inspired metaheuristics for the set covering problem(Springer Verlag, 2015) Crawford, B.; Soto, R.; Peña, C.; Riquelme-Leiva, M.; Torres-Rojas, C.; Misra, S.; Johnson, F.; Paredes, F.The Set Covering Problem (SCP) is a classic problem in combinatorial optimization. SCP has many applications in engineering, including problems involving routing, scheduling, stock cutting, electoral redistricting and others important real life situations. Because of its importance, SCP has attracted attention of many researchers. However, SCP instances are known as complex and generally NP-hard problems. Due to the combinatorial nature of this problem, during the last decades, several metaheuristics have been applied to obtain efficient solutions. This paper presents a metaheuristics comparison for the SCP. Three recent nature-inspired metaheuristics are considered: Shuffled Frog Leaping, Firefly and Fruit Fly algorithms. The results show that they can obtainn optimal or close to optimal solutions at low computational cost. © Springer International Publishing Switzerland 2015.Ítem Solo Metadatos A dangerous mistake: research as a commodity in university institutions(Academia Brasileira de Ciências, 2018)Ítem Acceso Abierto A diversity of biogeographies in an extreme amazonian wetland habitat(wiley, 2017) Householder, E.; Janovec, J.; Tobler, M.W.; Wittmann, F.Amazonian wetlands are subject to prolonged waterlogging, which is known to be a major determinant of local composition and species distributions. However, our understanding of which traits determine species distributions in Amazonian wetlands and how these traits evolved is still scant. Due to correspondence between species traits, the niche and biogeographic pattern, novel perspectives on wetland assembly processes might be gained by examining local assemblies within a biogeographic framework. Here, we consider a biogeographic framework to examine the response of woody plant assemblages to permanent waterlogging in seven lowland wetlands of peat substrate. We quantitatively examine the variability of biogeographic relations among co-existing species to show that many taxa in extreme wetlands are uncommon in surrounding forests, but rather have wider biogeographic affnities. We propose that a high diversity of biogeographic histories may provide ecologically differentiated taxa for the colonization of environmentally extreme habitats in Amazonia. © 2017 John Wiley & Sons Ltd. All rights reserved.