Propuesta metodológica para la mejora continua del proceso de planeación estratégica del ITESO

En este trabajo se propone una metodología de mejora continua para la atención y reducción de las brechas existentes entre la implementación del modelo de planeación estratégica del Instituto Tecnológico y de Estudios Superiores de Occidente, ITESO, y un modelo teórico “ideal” de planeación estratégica, construido a partir de las mejores prácticas y los elementos comunes presentes en el trabajo de diversos autores conocedores del tema.ITESO, A.C

The Current Status of the Distribution Range of the Western Pine Beetle, Dendroctonus brevicomis (Curculionidae: Scolytinae) in Northern Mexico

Abstract The distribution range of the western pine beetle Dendroctonus brevicomis LeConte (Coleoptera: Curculionidae) is supported only by scattered records in the northern parts of Mexico, suggesting that its populations may be marginal and rare in this region. In this study, we review the geographical distribution of D. brevicomis in northern Mexico and perform a geometric morphometric analysis of seminal rod shape to evaluate its reliability for identifying this species with respect to other members of the Dendroctonus frontalis Zimmermann (Coleoptera: Curculionidae) complex. Our results provide 30 new records, with 26 distributed in the Sierra Madre Occidental and 4 in the Sierra Madre Oriental. These records extend the known distribution range of D. brevicomis to Durango and Tamaulipas states in northern Mexico. Furthermore, we find high geographic variation in size and shape of the seminal rod, with conspicous differences among individuals from different geographical regions, namely west and east of the Great Basin and between mountain systems in Mexico. Key words: seminal rod shape, geometric morphometry, Dendroctonus frontalis comple

Local mechanisms of cohesive soil erosion

The present study provides an experimental contribution to a better understanding of erosion mechanisms, based on a parametric analysis with different model materials. Such model soils allow for a controlled variation of physical properties, as well as the particle size and shape, and even the cohesion and bonding strength which can be quantified by specific mechanical testing devices. In parallel, the soil’s resistance against erosion can also be somehow quantified by means of experimental procedures such as the JET test (Hanson and Cook 2004). The goal of the investigations presented here is to determine the soil’s mechanical properties having a strong impact on the erosion resistance, and thus being required in an efficient erosion model. The useful case where the model material is also transparent enables, with adapted optical equipment, the time-space monitoring of single soil particles during erosion and thus a local analysis of erosion and soil’s detachment. Experimentally, this condition is achieved by using an oil mixture as eroding fluid and a model soil made out of glass beads possibly bonded with a very viscous liquid, all phases having approximately the same refractive index. Coupling then this refractive index matching technique with the planar laser-induced fluorescence, as already used by Philippe & Badiane (2013), makes it possible to observe the mechanisms by which the fluid flow removes single particles from the cohesive material

Reparative giant cell granuloma in a pediatric patient

Reparative giant cell granulomas are benign, infrequent tumors, of non-odontogenic origin, that develop at central or peripheral level. Peripherally located lesions are frequently denominated ?giant cell epulis?, and never correspond to true neoplasia, but rather to inflammatory reactions secondary to another lesion (hemorrhage, etc.). It should be taken into account, that in general, head and neck tumors of infancy usually demonstrate an atypical biological behaviour. Furthermore, the anatomicopathologic diagnosis is often compromised in this type of lesion. We present the case of a 6-year-old boy, who, three weeks after suffering a slight facial trauma, developed a painless, exophytic swelling of approximately 4 cm, with bleeding on palpation, in the ipsilateral hemimaxilla. The lesion demonstrated rapid, progressive and continuous growth. The facial CT and incisional biopsy confirmed the suspected diagnosis of reparative giant cell granuloma. The patient was surgically treated, carrying out a left marginal maxillectomy associated with the extirpation of the soft-tissue lesion. The resultant defect was reconstructed with a Bichat fat-pad providing the patient with optimal esthetic and functional results. The definitive anatomicopathologic report of the surgical piece is compatible with reparative giant cell granuloma

Population Density, Poor Sanitation, and Enteric Infections in Nueva Santa Rosa, Guatemala

Poor sanitation could pose greater risk for enteric pathogen transmission at higher human population densities because of greater potential for pathogens to infect new hosts through environmentally mediated and person-to-person transmission. We hypothesized that incidence and prevalence of diarrhea, enteric protozoans, and soil-transmitted helminth infections would be higher in high-population-density areas compared with low-population-density areas, and that poor sanitation would pose greater risk for these enteric infections at high density compared with low density. We tested our hypotheses using 6 years of clinic-based diarrhea surveillance (2007–2013) including 4,360 geolocated diarrhea cases tested for 13 pathogens and a 2010 cross-sectional survey that measured environmental exposures from 204 households (920 people) and tested 701 stool specimens for enteric parasites. We found that population density was not a key determinant of enteric infection nor a strong effect modifier of risk posed by poor household sanitation in this setting

Intraventricular Conundrum in a SARS-CoV-2-Positive Patient With Elevated Biomarkers of Myocardial Injury

We present a case of acute myocarditis with left ventricular dysfunction and intracavitary thrombosis in a 55-year-old man with severe acute respiratory syndrome coronavirus 2 infection (coronavirus disease 2019) who was admitted with bilateral atypical pneumonia. The patient was treated with anticoagulation and optimal heart failure therapy and had an improvement of left ventricular function and thrombus resolution. (Level of Difficulty: Intermediate.