El Repositorio Institucional de la Universidad FinisTerrae, es gestionado por el Sistema de Bibliotecas y tiene por objetivo permitir el acceso libre a la producción académica e institucional de la Universidad, aumentando la visibilidad de sus contenidos y garantizando su conservación.

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Occipitalization of the atlas: prevalence, functional and anatomical considerations. A systematic review and meta-analysis
(Elsevier, 2026) Bruna-Mejias, Alejandro; Salazar-Ferrari, Martina; Silva-Garay, Antonia; Chacon Valdebenito, Ignacia Belen; Ortiz-Ahumada, Cynthia; Trujillo-Riveros, Martin; Loaiza-Giraldo, Jessica Paola; Nova-Baeza, Pablo; Orellana-Donoso, Mathias; Santana-Machuca, Andres; Cifuentes-Suazo, Gloria; Oyanedel-Amaro, Gustavo; Paton, Glen; Nalla, Shahed; Valenzuela-Fuenzalida, Juan José; Sanchis-Gimeno, Juan
Background: Occipitalization of the atlas, defined as a congenital fusion between the first cervical vertebra (C1) and the occipital bone, is an uncommon anatomical variant of the craniovertebral junction. Reported prevalence in the general population varies widely, and the condition is often identified incidentally during imaging or anatomical assessment. Objective: To synthesize available evidence on the prevalence of atlas occipitalization and to describe its anatomical characteristics across different populations and study designs. Methods: A comprehensive literature search was conducted in MEDLINE, Scopus, Web of Science, Google Scholar, CINAHL, and LILACS from inception to January 2025. Study selection and data extraction were performed independently by four reviewers. Methodological quality was assessed using the Anatomical Quality Assessment (AQUA) tool. A random-effects meta-analysis was applied to estimate pooled prevalence values and explore predefined subgroups. Results: Twenty-five studies met the inclusion criteria for qualitative synthesis, of which eleven were included in the meta-analysis, encompassing a total of 4219 subjects. The pooled prevalence of atlas occipitalization was 0.64% (95% confidence interval: 0.00–1.00%). Variability in prevalence estimates was observed across populations and assessment methods. Conclusion: Atlas occipitalization is a rare congenital anatomical variant of the craniovertebral junction. Although often asymptomatic, its identification is anatomically relevant due to potential associations with other craniovertebral anomalies. Awareness of this variant is important for accurate anatomical interpretation and for planning procedures involving the craniovertebral junction.
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GLP-1RA- and Incretin-Based Therapies Within Lifestyle Interventions for Adults with Overweight or Obesity: A Systematic Review and Meta-Analysis
(MPDI, 2026) Bruna-Mejias, Alejandro; Valenzuela-Fuenzalida, Juan José; Oyanedel, Gustavo; Figueroa-Puig, Julio; Cabezas-Salgado, Juan José; Orellana-Donoso, Mathias; Cifuentes-Suazo, Gloria; Loro-Ferrer, Juan Francisco
Background/Objectives: Glucagon-like peptide-1 receptor agonist (GLP-1RA)- and incretin-based therapies are now central to obesity management. Their clinical value, however, should be interpreted beyond total weight loss, because changes in fat mass, lean mass, physical function, and cardiometabolic risk may depend on the accompanying dietary, behavioral, and exercise co-interventions. This systematic review and meta-analysis evaluated GLP-1RA- and incretin-based therapies delivered within lifestyle interventions in adults with overweight or obesity. Methods: The protocol was registered in PROSPERO (CRD420261360837). PubMed/MEDLINE, Web of Science, Scopus, CINAHL, SPORTDiscus, and CENTRAL were searched from inception to the final search dates. Records were deduplicated in Zotero. Risk of bias was assessed using the Cochrane RoB 2 tool. Random-effects meta-analyses were estimated using restricted maximum likelihood with Hartung–Knapp adjustment when pooling was appropriate. Results: Across all database sources, 1651 records were identified. After removing 113 duplicate records and 212 records with an ineligible publication type before screening, 1326 records were screened. Seventy-seven reports were sought for retrieval, five were not retrieved, 72 were assessed at full text, and 48 reports corresponding to 35 independent parent trials or trial clusters were retained for qualitative synthesis. The primary kilogram-scale meta-analysis included eight independent comparisons and showed greater body-weight reduction with GLP-1RA/incretin-based therapy delivered within a lifestyle background than with placebo/control (mean difference [MD] −10.08 kg, 95% confidence interval [CI] −12.76 to −7.39; 95% prediction interval [PI] −17.86 to −2.29; $I^2 = 95.6\%$). Percentage body-weight change was analyzed separately across 11 independent comparisons and also favored GLP-1RA/incretin-based therapy (MD −9.53 percentage points, 95% CI −11.92 to −7.14; 95% PI −17.58 to −1.48; $I^2 = 95.4\%$). Conclusions: GLP-1RA- and incretin-based therapies delivered within lifestyle interventions are associated with clinically meaningful reductions in body weight in adults with overweight or obesity. Absolute and relative body-weight change metrics should remain analytically separate. The magnitude of benefit varies across trial contexts, and certainty remains limited by risk-of-bias concerns and considerable heterogeneity. Future trials should standardize the reporting of lifestyle co-interventions, body composition, adherence, physical-function outcomes, and safety monitoring.
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Effectiveness of arthrocentesis versus other therapeutic modalities in patients with temporomandibular disorders. Systematic review and meta-analysis
(Elsevier, 2026-12) Valenzuela-Fuenzalida, Juan José; Araya-Gonzalez, Florencia; Katz-Figols, Ursula; Ruiz-Jorquera, Victoria; Diaz-Barahona, Joaquin; Loaiza-Giraldo, Jessica Paola; Pino-Henriquez, Cristobal; Niklander, Sven; Rodriguez-Luengo, Macarena; Cariseo-Avila, Carolina; Cifuentes-Suazo, Gloria; Orellana-Donoso, Mathias; Nova-Baeza, Pablo; Moya Daza, María P.; Konschake, Marko; Sanchis-Gimeno, Juan
Background: Temporomandibular disorders (TMD) are a heterogeneous group of conditions frequently associated with pain and functional impairment. Arthrocentesis has been proposed as a minimally invasive therapeutic option; however, its comparative effectiveness versus other treatments remains uncertain. Objective: To evaluate the effectiveness of arthrocentesis compared with other therapeutic modalities in patients with TMD, focusing on pain relief and mandibular functional outcomes. Methods: A systematic review and meta-analysis were conducted following PRISMA 2020 guidelines. Randomized controlled trials comparing arthrocentesis with other therapeutic interventions for TMD were included. Primary outcomes were pain intensity assessed by visual analogue scale (VAS) and mandibular functional outcomes, including maximum mouth opening, maximum incisal opening, masticatory efficiency, mandibular movements, and overall joint mobility. Results: Thirty-two randomized controlled trials were included in the quantitative synthesis. No statistically significant difference in pain reduction was observed between arthrocentesis and comparator interventions, with very high heterogeneity. Masticatory efficiency showed a small statistically significant improvement favoring arthrocentesis, based on very low-certainty evidence. Overall, the certainty of evidence ranged from low to very low across outcomes. Conclusions: Arthrocentesis may provide modest symptomatic improvement in selected patients with TMD; however, it does not demonstrate superiority over alternative therapeutic modalities for most functional outcomes. Further well-designed randomized controlled trials with standardized diagnostic criteria, clearly defined comparators, and longer follow-up are required to better define the role of arthrocentesis in the management of temporomandibular disorders.
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Narrativas museográficas de lo efímero
(Universidad de Palermo, Buenos Aires, 2026-07-21) Menteguiaga, Clarisa
Las narrativas museográficas de lo efímero ponen en evidencia cómo las obras que incorporan elementos naturales y materiales biodegradables cuestionan los modos tradicionales de exhibición y conservación en museos y galerías. Estas piezas destacan la temporalidad intrínseca de los objetos, privilegiando la transformación, el desgaste y la desaparición sobre la permanencia. Plantean experiencias sensoriales y afectivas que involucran directamente al espectador. La museografía de lo efímero no solo organiza la disposición física de los materiales, sino que también integra la documentación, la memoria del visitante y la ética de la recolección y devolución de los elementos al entorno natural. El trabajo de Wolfgang Laib, con superficies de polen recolectado a mano, transforma el espacio expositivo en un campo vibrante que exige condiciones espaciales cuidadosas y genera un encuentro ritual y contemplativo con la obra, resaltando su vulnerabilidad y esencia efímera. De manera similar, Herman de Vries utiliza semillas, tierra, hojas y minerales dispuestos en el suelo o superficies bajas, evitando vitrinas, para crear entornos dinámicos que evidencian ciclos de crecimiento y descomposición, donde la observación activa del público se integra al proceso mismo de la obra. La exposición Diorama en expansión de Rodrigo Arteaga (MAVI, 2021) presenta esculturas, gráficos y sonidos en una disposición abierta que favorece la interacción directa del espectador, cuestionando las estructuras tradicionales de representación de la naturaleza y transformando el espacio en un diorama de historia natural crítica. Por su parte, la instalación Biomater de Menteguiaga y Ojeda articula la temporalidad mediante materiales orgánicos, que se transforman y mutan junto con una iluminación cambiante diseñada por Paulina Villalobos, generando luces y sobras que crean micropaisajes que convierten al espectador en participante activo de la experiencia. En conjunto, estas propuestas muestran cómo la museografía contemporánea puede integrar la transitoriedad, la interacción y la sensibilidad hacia los procesos naturales, redefiniendo la relación entre obra, espacio expositivo y público, y promoviendo una reflexión ética y afectiva sobre la interdependencia entre humanos y naturaleza
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Corporizar la escritura. Pedagogía teatral y educación imaginativa en la formación de educadores infantiles
(Universidad Finis Terrae, 2026-07-16) Araujo Escobar, Junell Lorena; Sánchez-Duque, Carmen Gloria; Barrera-García, Ángela
La presente investigación analiza el impacto del juego dramático fundamentado en la educación imaginativa sobre el rediseño de planificaciones curriculares para la alfabetización inicial. Mediante una metodología cualitativa de investigación-acción, estudiantes de Educación Infantil participaron en un taller vivencial diseñado para cuestionar y superar los enfoques tradicionales de enseñanza. El análisis documental de las propuestas curriculares elaboradas evidenció una ruptura crítica de las inercias técnico-conductistas e instrumentales detectadas en el hito diagnóstico preliminar. Los resultados confirman una evolución metodológica hacia diseños curriculares de carácter artístico, experiencial y creativo, favorecida por el desarrollo de la comprensión somática. Se concluye que la integración del juego dramático y la educación imaginativa permite corporizar el aprendizaje de la lengua escrita al articular emoción, imaginación y experiencia lúdica. Esta hibridación pedagógica constituye una alternativa sólida para transformar la enseñanza mecánica de la alfabetización en una experiencia significativa, participativa y profundamente vinculada con el desarrollo integral de los estudiantes.