Types of Skin Grafts

Skin grafting is a useful technique that has been used for a very long time for achieving closure of wounds when it cannot occure in a natural conventional manner. There are different types of grafts according to their origin, thickness and form. There are 3 main types of graftsthat are used to cover wounds: Split-thickness skin grafts, full-thickness skin grafts and composite grafts. Each of them has specific indication and has a unique technique for harvesting. If the graft is not taken care of properly its survival can be compromised and necrosis of the graft can occur. Even though complications may present, skin grafting is still considered a practical approach to repair many type of wounds

Evaluating University-Business Collaboration at Science Parks: a Business Perspective

The evaluation of the companies’ performance at University Science Parks (SPs) becomes essential in identifying the needs of the companies and the feasibility of the University-Business Collaboration (ubc). The companies’ real needs are also of interest for universities and SPs, since they face the challenge of designing strategies that best help them to transfer knowledge more effectively. This research article focuses on Key Performance Indicators (kpis) in ubc, needs and business objectives of companies co-located at SPs in Spain and Mexico. This article (i) aims to identify the kpis in ubc used by co-located companies at SPs, and (ii) explore the kpis in ubc and critical success factors of SPs. This article focuses on the perspective of companies, with a secondary focus on the perspectives of SPs and universities. For this study, data was collected through online company surveys in Spain and Mexico.Postprint (published version

Huellas comunitarias en las trayectorias formativas de estudiantes del Instituto Superior Intercultural Ayuuk

En este artículo analizamos las “huellas comunitarias” que deja en las trayectorias de  estudiantes indígenas el Instituto Superior Intercultural Ayuuk, una universidad comunitaria intercultural localizada en la región mixe de Oaxaca, México, caracterizada por ser independiente del modelo educativo intercultural propuesto por la entonces Coordinación General de Educación Intercultural y Bilingüe, y por pertenecer al Sistema Universitario Jesuita. El objetivo de la investigación fue identificar y analizar en las trayectorias de estudiantes indígenas en su paso por la universidad las improntas que les deja el carácter comunal de su experiencia universitaria. Durante el trabajo etnográfico se aplicaron entrevistas semiestructuradas en profundidad y observación participante a ocho jóvenes de distintos semestres de la Licenciatura en Educación Intercultural. El análisis implementado, a través de la Teoría Fundamentada mostró que las trayectorias de formación son multidimensionales y que se configuran con experiencias obtenidas no sólo en el contexto áulico, sino con un fuerte peso comunitario y familiar. Además, ilustran que la inmersión en el modelo educativo comunitario e intercultural y las dinámicas que genera su respectiva “vida universitaria” desencadenan en los jóvenes transformaciones identitarias que los llevan a redescubrir y a revalorar su territorio, su lengua, su ser indígena

Complejos de cobre con líquidos iónicos insertados en MCM-41 como catalizadores en una reacción click

Los materiales híbridos ofrecen nuevas líneas de investigación de acuerdo a las propiedades que presentan, en cuanto a las químicas en catálisis como soportes de metales de transición. Este estudio incide principalmente en el conocimiento y alteraciones convenientes de la superficie del MCM-41 modificado con organosilanos y líquido iónico, pues la alta área específica (mayor a 1200 m²/g) del soporte ofrece mayores sitios de anclaje y disponibilidad del sitio activo. El material sintetizado, modificado y acomplejado por Cobre II, se evaluó en una reacción orgánica del tipo “click” que es una la cicloadición 1,3-dipolar de azida y alquino para la obtención de un 1,2,3-triazol que es catalizada por Cobre (I) reducida in situ.The hybrid materials offer new lines of investigation of agreement to the properties that they present, as for the catalysis or as metal supports of transition for example. This study affects principally in the knowledge and suitable alterations of the surface of the MCM-41 modified with organosilanos and ionic liquid, so the high specific area (bigger than 1200 m²/g) of the support offers major sites of anchorage and availability of the active site. The synthesized material modified with a copper complex, was evaluated in an organic "click" reaction of the 1,3-dipolar cicloadición of azida and alquine for the obtaining of one 1,2,3-triazol that is catalyzed by Copper (I) reduced in situ

Central regional de autobuses interurbanos con localización en la ciudad de Matamoros, Puebla

"Contribuir al descongestionamiento vehicular de transporte y reducir la contaminación auditiva, visual y ambiental, proporcionando seguridad y tranquilidad al peatón en la zona centro de Izúcar de Matamoros a través de un proyecto arquitectónico denominado Centro Regional de Autobuses Interurbanos de Izúcar de Matamoros, localizándolo fuera del área centro e integrando las lineas de transporte publico foráneo, de una manera sustentable. Diseñar un espacio de calidad para el servicio de transporte al municipio en base a los reglamentos respectivos proponiendo instalaciones con sistemas ecotécnicos como paneles solares que aporten al ahorro de energía. Proponer una ubicación adecuada y centralizar las lenas de autobuses foráneas mediante el análisis de la estructura urbana y vial del municipio, así como las características socioeconómicas de la población.

Short-term outcomes after the loading phase of intravitreal bevacizumab and subthreshold macular laser in non-center involved diabetic macular edema

AIM: To compare the effectiveness of intravitreal bevacizumab and subthreshold macular photocoagulation (SMP), for the treatment of non-center involved diabetic macular edema (non-CI DME). METHODS: Prospective, randomized, controlled clinical study included patients with type 2 diabetes, non-CI DME and best-corrected visual acuity (BCVA) of 0.30 logMAR or better. Each eye was randomized into three groups: group 1, monthly intravitreal bevacizumab; group 2, single SMP; group 3, single SMP and monthly bevacizumab. Main outcome measures were BCVA, and macular thickness measured with optical coherence tomography as macular central subfield thickness (CST), macular area of greater thickness (MAGT) and total macular volume (TMV). Results were analyzed after 3mo. RESULTS: A total of 32 eyes were included. Group 3 improved in BCVA (0.19±0.16 to 0.12±0.14 logMAR; P=0.041) and in TMV (7.90±0.57 to 7.65±0.73 mm3; P=0.025). Group 1 improved in MAGT (325±26.26 to 298.20±44.85 μm; P=0.022) and TMV (7.79±0.57 to 7.50±0.56 mm3, P=0.047). Group 2 didn’t show significant improvement of any variable. CONCLUSION: The loading phase of bevacizumab as monotherapy or combined with SMP is superior to SMP as monotherapy in providing short-term visual and anatomical improvement in non-CI DME

Las ciencias sociales en el noreste de México.

Texto colectivo que incluye seis ensayos donde se reflexiona sobre el estado que guardan las ciencias sociales en el noreste de México: antropología, comunicación, economía, geografía, historia y sociología.Redactado por miembros del Grupo Gente (Grupo de Estudios sobre el Noreste de México y Texas) bajo la coordinación de César Morado y Lucila Hinojosa

Maternal dietary patterns and acute leukemia in infants: results from a case control study in Mexico

BackgroundChildhood cancer is the leading cause of disease-related mortality among children aged 5–14 years in Mexico, with acute leukemia being the most common cancer among infants. Examining the overall dietary patterns allows for a comprehensive assessment of food and nutrient consumption, providing a more predictive measure of disease risk than individual foods or nutrients. This study aims to evaluate the association between maternal dietary patterns during pregnancy and the risk of acute leukemia in Mexican infants.MethodsA hospital-based case–control study was conducted, comparing 109 confirmed acute leukemia cases with 152 age-matched controls. All participants (≤24 months) were identified at hospitals in Mexico City between 2010 and 2019. Data on a posteriori dietary patterns and other relevant variables were collected through structured interviews and dietary questionnaires. Multivariate logistic regression was employed to estimate the association between maternal dietary patterns during pregnancy and the risk of acute leukemia in infants.ResultsThe “Balanced & Vegetable-Rich” pattern, characterized by a balanced consumption of various food groups and higher vegetable intake, exhibited a negative association with acute leukemia when compared to the “High Dairy & Cereals” Pattern (adjusted odds ratio [OR] = 0.51; 95% confidence interval [CI]: 0.29, 0.90). We observed that mothers who gave birth to girls and adhered to a healthy dietary pattern during pregnancy exhibited significantly lower odds of their children developing AL compared to those who gave birth to boys [OR = 0.32 (95% CI 0.11, 0.97)]. Our results underscore the significance of maternal nutrition as a modifiable factor in disease prevention and the importance of prenatal health education