AISLAMIENTO Y PURIFICACIÓN DEL HONGO ECTOMICORRÍZICO Helvella lacunosa EN DIFERENTES MEDIOS DE CULTIVO

Helvella lacunosa, besides its mycorrhizal importance for plant forest species, has a high commercial value. The commercial production of H. lacunosa represents two main advantages: Economical benefits for the communities able to produce it; and conservation of biodiversity in the forests by preventing the species overexploitation and maintaining the mushroom-plants micorrhizal relationship. Carrying out this perspective requires, in principle, to isolate the species mycelium, and then to develop the mycorrhizing technique that allows the production of the mushroom. Isolating the mycelium by the first time, however, involves testing several culture media in order to identify the potential requirements for inducing the myceliums growth. In the present work we tested, in laboratory, five different agar-based culture media to isolate H. lacunosas mycelium, and to evaluate its growing rate, analysis of covariance showed that there is a simple linear relationship between incubation time and the diameter. Indicating that the cumulative growth rate of the mycelium, was different between the culture media (F4, 240 = 17,008, p <0.001). The APD medi u m had the highest growth rate followed by AEA. In both growing media, the diameter of the mycelium converges the fifth day. The lowest growth rate was presented in the media AEM and AEP

El concepto de libertad en las teorías educativas de Dewey, Freire e Illich

El presente trabajo de revisión teórica trata de establecer la relación entre la teoría educativa y el concepto de libertad, tomando como referencia los legados de John Dewey, Paulo Freire e Ivan Illich y concentrando el análisis en las obras:” Democracia y educación”, “La pedagogía como práctica de la libertad” y “La sociedad desescolarizada” respectivamente. A partir de estas teorías pedagógicas se extrae el concepto de educando, el cual se utiliza como punto de encuentro entre los dos conceptos que se pretenden relacionar. Finalmente se describe el concepto de libertad que emana de cada una de ella y se establecen unas conclusiones y análisis crítico de los resultados obtenidos.The present work of theoretical revision is to establish the relationship between educational theory and the concept of freedom, taking as reference the legacy of John Dewey, Paulo Freire and Ivan Illich and concentrate the analysis on the works: “Democracia y educación”, “La pedagogía como practica de la libertad” and “La sociedad desescolarizada” respectively. From these pedagogical theories the concept of learner is extracted, and is used as a meeting point between the two concepts that are intended to relate. Finally, describe the concept of freedom that emanates from each of them

Developing Supply Chain Competencies Through Experiential Learning and Games

[EN] The Supply Chain Management field has a shortage of talent to deal with the complex problems organizations face nowadays. Higher education institutions have worked to close the gap in knowledge and competencies with various results. This paper presents the results of implementing a Supply Chain Management course, which includes experiential learning, gaming, and industry-academia collaboration to develop four competencies in this field. The main results show how the relevance of hands-on learning, the variety of learning environments -such as virtual, simulated, and real- and tutoring from both practitioners and professors from different disciplines become key elements in developing the required skills to perform a role in a Supply Chain related position.  The authors wish to acknowledge the financial support of the Writing Lab, Institute for the Future of Education, Tecnologico de Monterrey, Mexico, in the production of this work.Garcia-Reyes, H.; Maycotte-Felkel, S.; Quijano-Dominguez, E. (2023). Developing Supply Chain Competencies Through Experiential Learning and Games. En 9th International Conference on Higher Education Advances (HEAd'23). Editorial Universitat Politècnica de València. 113-120. https://doi.org/10.4995/HEAd23.2023.1626011312

On the Performance of Carbon Nanotubes on Sintered Alumina-Zirconia Ceramics

The alumina (Al2O3) and zirconia (ZrO2) ceramic monoliths and their combination are used in both technical and biomedical applications due to their combination of excellent chemical, physical, and mechanical properties. Pressureless sintering (PLS), reaction bonding (RB), hot pressing (HP), hot isostatic pressing (HIP), and spark plasma sintering (SPS) are the sintering methods more commonly used. The high brittleness, the low fracture toughness, and low thermal stability that possess these ceramics are its Achilles heel for numerous engineering applications. The incorporation of a second phase such as carbon nanotubes (CNTs) into the ceramic matrix has been attempted to overcome these drawbacks but the obtained results are still controversial considering that the homogeneous dispersion of CNTs and the interfacial bonding between two different ceramic materials remains as a difficult task leading to little or even no improvement in mechanical properties. Besides, the role of CNTs in the sintering of ceramic materials is not clear in the scientific literature taking into account parameters such as materials used and particularly inconsistencies in dispersion and mixing of the CNTs. We discuss how the CNTs can affect the sintering behavior and microstructural evolution of alumina and zirconia ceramics and the combination of them

The Emerging Role of Cyclin-Dependent Kinase Inhibitors in Treating Diet-Induced Obesity: New Opportunities for Breast and Ovarian Cancers?

Simple Summary This review aims to provide an outline of the potential use of plant-based foods, nutraceuticals, and derived micronutrients-particularly those typically found in the Mediterranean diet-as anticancer agents, with a focus on their mechanism of action as cyclin-dependent kinase inhibitors (CDKIs) by inactivating the CDK 4/6 pathway and the regulation of the cell-cycle cascade. We discuss the preclinical and pharmacological significance of some already approved CDK blockers as a promising therapeutic approach against breast and ovarian cancers. Overweight and obesity constitute the most impactful lifestyle-dependent risk factors for cancer and have been tightly linked to a higher number of tumor-related deaths nowadays. The excessive accumulation of energy can lead to an imbalance in the level of essential cellular biomolecules that may result in inflammation and cell-cycle dysregulation. Nutritional strategies and phytochemicals are gaining interest in the management of obesity-related cancers, with several ongoing and completed clinical studies that support their effectiveness. At the same time, cyclin-dependent kinases (CDKs) are becoming an important target in breast and ovarian cancer treatment, with various FDA-approved CDK4/6 inhibitors that have recently received more attention for their potential role in diet-induced obesity (DIO). Here we provide an overview of the most recent studies involving nutraceuticals and other dietary strategies affecting cell-cycle pathways, which might impact the management of breast and ovarian cancers, as well as the repurposing of already commercialized chemotherapeutic options to treat DIO

Síntesis y caracterización de un biomaterial para su uso en ingeniería de tejidos de piel

La ingeniería de tejidos constituye una disciplina relativamente nueva y un campo de investigación y desarrollo interdisciplinario que aplica los conocimientos de la bioingeniería, química, física, biología etc. para resolver problemas químicos y quirúrgicos asociados a la pérdida de tejido o al fallo funcional de órganos (San Román et al., 2000; Naderi et al., 2011). Esta área de conocimiento busca proporcionar una nueva solución a los problemas de daño o pérdida tisular, mediante el reemplazo o restauración de tejido. Más aún se aspira a recobrar la función de un órgano y en algunos casos su reconstrucción parcial o total, con estructuras que contengan poblaciones específicas de células. La meta fundamental de la ingeniería de tejidos es desarrollar sustitutos (biológicos o sintéticos) que restauren, mantengan o mejoren la función del tejido perdido o lesionado por trauma o enfermedad. (Marler et al., 1998; Landínez et al., 2010). Esta nueva área de estudio permitirá crear estrategias que permitan la sustitución del tejido dañado, por un tejido diseñado y construido para satisfacer las funciones y las necesidades de cada paciente

USO Y MANEJO DE HONGOS SILVESTRES EN CINCO COMUNIDADES DEL MUNICIPIO DE OCOYOACAC, ESTADO DE MÉXICO

La E tno mi cología, es descrita por Robert Gordon Wasson, como una rama de la etnobotánica que se encarga de estudiar la relació n entre los pueblos y los hongos; S in embargo el conocimiento micológico, así como los usos que se les dan a estos organismos han sido poco estudiados, en especial en el Estado de México. En el presente trabajo se describieron y analizaron aspectos relacionados al uso y manejo de las diferentes prácticas culturales alrededor de los hongos, en cinco comunidades del municipio de Ocoyoacac, cuya población en s u mayoría es de origen otomí , se realizó una etnomicografía a través de técnicas que involucraron recorridos etnomicológicos y entrevistas , con informantes claves y de calidad. Los macromicetes colectados fueron analizados en el laborato rio de Biología sistemática de la Facultad de Ciencias , de la Universidad Autónoma del Estado de México (UAEMex). La importancia cultural de estos organismos se analizó a través de dos técnicas : Frecuencia y Orden de Mención, s e determinó que la principal categoría antropocéntrica es l a alimentaria. Se obtuvo un listado de la micobiota en donde s e registraron 47 especies de hongos comestibles, 45 nombres tradicionales de los cuales 31 son en castellano y 13 en Otomí. También se observó la presencia de disti ntos patrones culturales sobre aspectos del conocimiento micológico tradicional

The professionalization of the creative occupation: academic context and job insecurity in Mexico.

A formação acadêmica dos artistas no México tem variáveis institucionais e contextuais que derivam da precarização criativa e do trabalho. Nos últimos anos, as instituições formadoras do ofício criativo foram orientadas a satisfazer as necessidades de um modelo econômico sustentado no mercado, deixando de lado as qualidades criativas pertencentes à cultura, à arte e à educação. O presente artigo analisa as características acadêmicas e as condições de trabalho daqueles formados em instituições dedicadas a profissionais na arte e na cultura no México. Projetar e atualizar seus programas acadêmicos será o maior desafio das carreiras universitárias em arte e cultura nos próximos anos, para enfrentar a precariedade do campo de trabalho e profissional de seus futuros graduados.La formación académica de los artistas en México tiene variables institucionales y contextuales que derivarán en la precarización laboral y creativa. En los últimos años, las instituciones formadoras del oficio creativo fueron orientadas a satisfacer las necesidades de un modelo económico sustentado en el mercado, dejando de lado aquellas cualidades creativas inmersas en la cultura, el arte y la educación. El presente artículo analiza las características académicas y las condiciones laborales de los egresados de instituciones formadoras del perfil profesional en el arte y la cultura en México. Proyectar y actualizar sus programas académicos será el mayor desafío que enfrenten las carreras universitarias de arte y cultura en los próximos años, para confrontar la precarización del campo laboral y profesional de sus futuros egresados.  The academic background of artists in México has institutional and contextual variables, which lead to job and creative precariousness.  In recent years, the educational institutions of the creative professions were oriented to satisfy the needs of an economic model based on the market, leaving aside those creative qualities immersed in culture, art, and education. This article analyzes the academic situation and working conditions of graduates from institutions that train the professionals in art and culture in México. Projecting and updating their academic programs will be the greatest challenge facing university careers in art and culture in the coming years, to confront the precariousness of the labor and professional field of their future graduates.