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Las ciudades al sur del mundo. Urbanismo y vida urbana en Chile más allá de la gran capital Félix Rojo-Mendoza, Miguel Escalona Ulloa, Jorge Olea Peñaloza, Daniel Rozas Vásquez (Editores)Santiago: RIL Editores-Universidad Católica de Temuco, Chile, 2021, 414 páginas.
Get PDFLos límites de lo urbano son siempre difusos. Enganchan tradiciones, prácticas, usos, desplazamientos y movimientos que, entre una inmensidad de procesos, son explorados desde distintos puntos del pensamiento crítico de las Ciencias Sociales y Ambientales. En los últimos años, la tendencia por conocer la ciudad fuera de las convenciones metropolitanas ha aumentado, lo que da cuenta de un interés a la vez que justicia académica por aquellos espacios que precisan de ser ensayados en función de denuncia, análisis y prospección. Esta breve reseña articula en tres continentes a la obra, considerando los órdenes propios del espacio: el tiempo, la ciudad y la naturaleza
Expansion of the distribution range of Asplenium trilobum Cav (Polypodiopsida, Aspleniaceae) in the Mediterranean forest of the Chilean coast
Get PDFThe biodiversity hotspot of central Chile is home to a high proportion of endemic species, but some of these species are inconspicuous and not easily observed. During a botanical exploration in the Los Queules National Reserve (Chile), a population of Asplenium trilobum Cav. was identified. The plants were found growing on the bark of a Myrceugenia parvifolia (DC.) Kausel tree in a small swamp next to specimens of Drimys winteri J.R.Forst. & G.Forst. (35 & DEG;59'11.84'S; 72 & DEG;41'11.53'W). Several previously unrecorded species were found, including Carex cf. excelsa Poepp. ex Kunth, Chusquea cf. quila Kunth, Ercilla cf. spicata (Bertero) Moq., and Boquila trifoliolata (DC.) Decne., highlighting the importance of exploring and documenting this biodiversity hotspot. The discovery in this wilderness area extends the distribution 86 km north on the continent, which was previously limited to the east of the municipality of Penco in the Biobio region (36 & DEG;44'9.26'S; 72 & DEG;57'42.5'W). This paper presents an observed specimen, its locality, and associated species
BMS<sub>3</sub> (Carrollian) field theories from a bound in the coupling of current-current deformations of CFT<sub>2</sub>
No full textTwo types of Carrollian field theories are shown to emerge from finite current-current deformations of toroidal CFT2's when the deformation coupling is precisely fixed, up to a sign. In both cases the energy and momentum densities fulfill the BMS3 algebra. Applying these results to the bosonic string, one finds that the electric-like deformation (positive coupling) reduces to the standard tensionless string. The magnetic-like deformation (negative coupling) yields to a new theory, still being relativistic, devoid of tension and endowed with an 'inner Carrollian structure'. Classical solutions describe a sort of 'self-interacting null particle' moving along generic null curves of the original background metric, not necessarily geodesics. This magnetic-like theory is also shown to be recovered from inequivalent limits in the tension of the bosonic string. Electric- and magnetic-like deformations of toroidal CFT2's can be seen to correspond to limiting cases of continuous exactly marginal (trivial) deformations spanned by an SO(1,1) automorphism of the current algebra. Thus, the absolute value of the current-current deformation coupling is shown to be bounded. When the bound saturates, the deformation ceases to be exactly marginal, but still retains the full conformal symmetry in two alternative ultrarelativistic regimes
Adaptaciones al ejercicio físico en el perfil lipídico y la salud cardiovascular de obesos mórbidos
Get PDFLas revistas indexadas en Scopus se indican como de acceso abierto si están incluidas en el Directory of Open Access Journals (DOAJ) y/o en el Directory of Open Access Scholarly Resources (ROAD).Objetivo: Evaluar los efectos de un programa de ejercicio físico sobre el perfil lipídico, el estado ponderal y la salud cardiovascular de obesos candidatos a cirugía bariátrica. Método: Veintidós obesos mórbidos participaron de un programa de ejercicio físico de 6 meses de duración. Dieciséis formaron el grupo adherente (asistencia ≥ 80%; edad: 37.81 ± 11.90 años) y seis el grupo no adherente (asistencia < 80%; edad: 45.83 ± 14.23 años). Antes y 72 horas después de la última sesión se evaluaron el peso, el índice de masa corporal (IMC), el contorno de la cintura (CC), la presión arterial, la glucemia basal, la capacidad cardiorrespiratoria, el colesterol y los trigliceridos. Resultados: El peso, el IMC y el CC presentaron cam- bios significativos (p < 0.05) en ambos grupos, siendo mejores los resultados del grupo adherente. En el grupo adherente, además, aumentó la capacidad cardiorrespiratoria (p = 0.001) y disminuyeron significativamente la presión diastólica (p = 0.011), la glucemia basal (p = 0.021) y los triglicéridos (p < 0.001). El grupo no adherente no presentó cambios significativos en estas variables (p ≥ 0.05). Conclusión: La intervención fue factible de realizar sin efectos negativos para los participan- tes, y se puede recomendar para mejorar la salud cardiovascular de estos pacientes.Objective: To assess the effects of a physical exercise program on the lipid profile, weight status and the cardiovascular health of obese candidates for bariatric surgery. Method: 22 morbidly obese patients participated in a 6-month physical exercise program. 16 formed the adherent group (attendance ≥ 80%; age: 37.81 ± 11.90 years) and six the non-adherent group (attendance < 80%; age: 45.83 ± 14.23 years). Before and 72 h after the last session were evaluated: weight, body mass index (BMI), contour waist, blood pressure, fasting, cardio respiratory fitness, cholesterol and triglycerides. Results: Weight, BMI and WC showed significant changes (p < 0.05) in both groups, with the results of the adherent group being better. In the adherent group, cardiorespiratory capacity (p = 0.001) was also increased, while diastolic pressure (p = 0.011), basal glycemia (p = 0.021) and triglycerides decreased significantly (p < 0.001). The non-adherent group did not present significant changes in these variables (p ≥ 0.05). Conclusions: The intervention was feasible to perform without negative effects for the participants, and it is possible to recommend improving the cardiovascular health of these of patients
Identification of bacteria in potential mutualism with toxic <i>Alexandrium catenella</i> in Chilean Patagonian fjords by <i>in vitro</i> and field monitoring
No full textThe dinoflagellate Alexandrium catenella is a well-known paralytic shellfish toxin producer that forms harmful algal blooms, repeatedly causing damage to Chilean coastal waters. The causes and behavior of algal blooms are complex and vary across different regions. As bacterial interactions with algal species are increasingly recognized as a key factor driving algal blooms, the present study identifies several bacterial candidates potentially associated with Chilean Alexandrium catenella. This research narrowed down the selection of bacteria from the Chilean A. catenella culture using antibiotic treatment and 16S rRNA metabarcoding analysis. Subsequently, seawater from two Chilean coastal stations, Isla Julia and Isla San Pedro, was monitored for two years to detect Alexandrium species and the selected bacteria, utilizing 16S and 18S rRNA gene metabarcoding analyses. The results suggested a potential association between Alexandrium species and Spongiibacteraceae at both stations. The proposed candidate bacteria within the Spongiibacteraceae family, potentially engaging in mutualistic relationships with Alexandrium species, included the genus of BD1-7 clade, Spongiibbacter, and Zhongshania
Experimental behaviour of roads by using plastic waste
Get PDFThe use of plastic and related materials is increasing exponentially due to tremendous growth in population, urbanization and changed life style leads to widespread littering of plastic on the landscape. Disposal of waste plastic is a serious problem globally due to their non-biodegradability and hazardous to human health’s, since these are not disposed scientifically and thus, createground and watermuch polluted. If this curse to mankind in the form of waste plastic which can be used as a boon for mankind by using it as additives in road construction, it will proved to be a best solution over worst road condition. In the present paper,techniques havebeen developed to use plastic waste for construction of bituminous roads and flexible pavementsto be discussed. In general bitumen is used as binder in road construction. Binding properties of this bitumen can be modified by blending it with waste plastic pieces. It can be used for construction purpose.El uso de plástico y materiales relacionados está aumentando exponencialmente debido al tremendo crecimiento de la población, la urbanización y el cambio de estilo de vida conduce a una gran cantidad de basura plástica en el paisaje. La eliminación de residuos plásticos es un problema grave a nivel mundial debido a su no biodegradabilidad y peligro para la salud humana, ya que estos no se eliminan científicamente y, por lo tanto, crean suelos y aguas muy contaminados. Si esta maldición para la humanidad en forma de plástico de desecho que puede usarse como una bendición para la humanidad al usarlo como aditivos en la construcción de carreteras, demostrará ser la mejor solución en las peores condiciones de la carretera. En el presente trabajo, se han desarrollado técnicas para utilizar residuos plásticos para la construcción de carreteras bituminosas y pavimentos flexibles que se discutirán. En general, el betún se utiliza comoaglutinante en la construcción de carreteras. Las propiedades aglutinantes de este betún se pueden modificar mezclándolo con residuos de plástico. Se puede utilizar para fines de construcción
Modelo Educativo UC Temuco
No full textI. Presentación y propósito II. Identidad institucional III. Contexto IV. Principios formativos V. Ejes transversales VI. Lineamientos generales para la implementación VII. Gestión de la calidad VIII. Referencia
Ancestral provocations to regulatory development
Get PDFEste artículo reflexiona en torno al Küme Mongen, noción propia de la sabiduría ancestral del pueblo Mapuche, que alude a las alternativas de vida y convivencia respecto al concepto de desarrollo. Desde un enfoque histórico-crítico nos acercaremos a la evolución del concepto de desarrollo y su vinculación al küme mongen, así como la repercusión que puede tener la valoración de este paradigma para una buena convivencia con todo lo viviente. Como resultado tenemos por un lado que pese al carácter contextual y dinámico de la categoría de desarrollo ésta refuerza las dimensiones propias del Capital y no es sino otra forma de colonización económica de los pueblos indígenas. Por otro lado, el küme mongen implica resistir a la hegemonía del desarrollo desde la hegemonía del Capital, a través de las dimensiones territoriales materiales e inmateriales que implicaría valorar y actualizar prácticas socioculturales de habitar y convivir en el cosmos.This article reflects on the Küme Mongen, a notion intrinsic to the ancestral wisdom of the Mapuche people, which alludes to the alternatives of life and coexistence in relation to the concept of development. From a historical-critical approach we approach the evolution of the concept of development and its link to the küme mongen, as well as the repercussion that the valuation of this paradigm can have for a good coexistence with all living things. As a result, on the one hand, despite the contextual and dynamic character of the category of development, it reinforces the dimensions of capital and representing another form of economic colonization of indigenous peoples. On the other hand, the küme mongen implies resisting the hegemony of development from the hegemony of Capital, through the material and immaterial territorial dimensions that would imply valuing and updating socio-cultural practices of inhabiting and coexisting in the cosmos
The Effectiveness of Direct Written Corrective Feedback to Improve Writing Skills in Fifth Grade Students from a Private Subsidized School
No full textPedagogical leadership and gender: the obstacles that female school directors face in Southern Chile
No full textDespite the progressive advance in the equality of rights and opportunities, a significant number of women who lead school organisations continue to encounter a series of obstacles when it comes to exercising school management. In this context, the article presents the experience of six women who lead educational establishments in the Araucania Region, Chile. From a qualitative approach, the research recognises the participants as active agents in the co-construction of situated knowledge Haraway 1995 [Ciencia, cyborgs y mujeres. La reinvencion de la naturaleza. Catedra] and participatory stages and actions were designed to foster reflection and self-narration on the managerial work of its protagonists. The results show six critical aspects to understand the obstacles that female directors face: (1) The overcoming of 'glass ceiling' and 'sticky floor' situations, (2) Tacit gender prejudices in educational organisations, (3) The conception of leadership from a male thought pattern, (4) Double work shifts and their impact on the development of personal life, (5) The discrimination between peers for motives based on gender, and (6) The importance of female leadership models in their own formative processes. In conclusion, we see that one of the complications in pedagogical leadership for learning lies in gender relations