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Search Results: 1 - 10 of 11213 matches for " Flores Morales "
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Siringomielia asociado a Malformación de Chiari tipo I
Flores Herrera Daniela,Morales Cozzi Carolina,Dr. Ladislao Flores Alvis
Revista Científica Ciencia Médica , 2012,
Abstract: La Siringomielia asociada a Malformación de Chiari tipo I, se refiere a una cavidad formada en la médula espinal debido a la obstrucción del canal medular por el desplazamiento de las amígdalas cerebelosas hacia el agujero magno, manifestándose entre los 25-40 a os, con cuadros progresivos de dorsalgias, cervicalgias, dolor de extremidades uni-bilateral, pérdida de sensibilidad; dependiendo del tama o de la cavidad, la medula espinal puede comprimirse y generar la lesión irreversible de la médula espinal.Se presenta un caso clínico de Siringomielia asociada a Malformación de Chiari tipo I; que presentó cuadro clínico de larga data previa a su diagnóstico; caracterizado por dorsalgias recurrentes que fueron tratadas con diclofenaco y complejo B, pensando en problema muscular. Se le diagnostica por resonancia magnética (RM), y el tratamiento fue la descompresión de fosa posterior; un a o después de su tratamiento quirúrgico se le realiza una RM de control donde hay ausencia de la Siringomielia
En qué consiste el "conocimiento matemático para la ense?anza" de un profesor y cómo fomentar su desarrollo: un estudio en la escuela primaria
Mochón, Simón;Morales Flores, Melchor;
Educación matemática , 2010,
Abstract: to improve education, you have to reach to the conducting element of the classroom, the teacher, and to what is required, related to his knowledge and teaching skills. most of the proposals to improve education, don't go this far. here we describe a research project with two main purposes: to be able determine the teacher's pedagogical and mathematical knowledge for teaching at the elementary school and to advance an efficient method to bring about its development. for this, we designed workshops, centered on the knowledge needed in the teacher's practice, in which the teachers were made to reflect upon what is missing in their practice and was motivated to acquire it. the results of the research showed areas of teachers' knowledge which are deficient and must be reinforced in general.
Gender and death: to speak of death is to speak of life
María de Lourdes Morales Flores
Medwave , 2012,
Abstract: To write about death is to understand that it is necessary to give it a current meaning. This meaning must be related to changes occurring in the complex environment surrounding death. Thus, when someone is close to a sick person o to death, both during and after mourning, and he or she may have the opportunity to speak about all of the feelings that are arising within, including anguish and fears. This may ensure a greater possibility of mitigating suffering, by enduring a better grievance period.
Sleep in the Work of Marcos José Salgado, Author of the First Book of Physiology in the Americas, Published in 1727  [PDF]
Gonzalo Flores, Carlos Manuel Fernández-Sánchez, Alejandro Valdes-Cruz, Julio Cesar Morales-Medina
Advances in Historical Studies (AHS) , 2015, DOI: 10.4236/ahs.2015.45026
Abstract: Sleep and wakefulness are functions of the central nervous system (CNS) that are altered in numerous psychiatric disorders. Interestingly, Marcos José Salgado published in 1727 his book which is considered the first book of Physiology in the American continent and entitled “Cursus Medicus Mexicanus” (Figure 1) that suggests the use of drugs to regulate brain functions and their therapeutic action on sleep. In the work of Salgado, the concepts of sleep and wakefulness are offered using Hippocratic and Galenic knowledge to explain the pathophysiology of both functions. Today those concepts might be considered wrong. However, taking into account the historical moment and the intrinsic value of the text written in Latin, this manuscript is unique. Considered by art critics as valuable, there are only eight original copies of this book. In the present report, we discussed paragraph by paragraph the chapter “Sleep and wakefulness”, the work of this Medical Doctor of the New Spain.
Ab Initio Molecular Orbital Calculation for Optical and Electronic Properties Evaluation of Small and Medium Size Silicon Nano-Clusters Found in Silicon Rich Oxide Films  [PDF]
Néstor David Espinosa Torres, José Francisco Javier Flores Gracia, José Alberto Luna López, Juan Carlos Ramírez García, Alfredo Morales Sánchez, José Luis Sosa Sánchez, David Hernández de la Luz, Francisco Morales Morales
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.411A2001
Abstract:

In systems in atomic and nano scales such as clusters or agglomerates constituted of particles from a few to less than one hundred of atoms, quantum confinement effects are very important. Their optical and electronic properties are often dependent on the size of the systems and the way in which the atoms in these clusters are bonded. Generally, these nano-structures display optical and electronic properties significantly different of those found in corresponding bulk materials. Silicon agglomerates found in Silicon Rich Oxide (SRO) films have optical properties, which have reported as depended directly on nano-crystal size. Furthermore, the room temperature photoluminescence (PL) of Silicon Rich Oxides (SRO) has repeatedly generated a huge interest due to their possible applications in optoelectronic devices. However, a plausible emission mechanism has not yet widespread acceptance of the scientific community. In this research, we employed the Density Functional Theory with a functional B3LYP and a basis set 6 - 31G* to calculate the optical and electronic properties of small (six to ten silicon atoms) and medium size clusters of silicon (constituted of eleven to fourteen silicon atoms). With the theoretical calculation of the structural and optical properties of silicon clusters, it is possible to evaluate the contribution of silicon agglomerates in the luminescent emission mechanism experimentally found in thin SRO films.

Frecuencia y patrón cambiante del cáncer pulmonar en México
Medina-Morales,Frumencio; Salazar-Flores,Margarita;
Salud Pública de México , 2000, DOI: 10.1590/S0036-36342000000400008
Abstract: objective: to assess the frequency, histological type and the epidemiological pattern of lung cancer (lc), during a 40 year period, at the national institute of respiratory diseases (iner). material and methods: this cross-sectional study was conducted in 1999. data were abstracted from the iner's service reports for 1983-1996 and the surgical pathology archives for 1957-1996. data from 1961 patients were analyzed, to obtain frequency measures on: the characteristics of iner lc patient admissions, age, sex, histological studies, specimens and diagnoses. results: between 1983-1996, lc ranked eighth to second place in iner inpatient admissions. results were grouped by decades. in the first two decades (1957-1976), 9% of patients were female; 32% in the third (1977-1986), and 38% in the last decade (1987-1996). epidermoid cell carcinoma was more frequent in the two first decades (61%) and adenocarcinoma in the last two, (41% and 62%, respectively.) conclusions: lc is currently more frequent in women, and adenocarcinoma is the most frequent neoplasia.
Enfermedad renal crónica: Clasificación, identificación, manejo y complicaciones Clinical guidelines on identitication, management and complications of chronic kidney disease
Juan C Flores,Miriam Alvo,Hernán Borja,Jorge Morales
Revista médica de Chile , 2009,
Abstract: The key messages of these guidel ines on chronic kidney disease are: Chronic kidney disease (CKD) is a public health problem due to its wide distribution, high rate of complications and cost. CKD is a common condition, its prevalence being about 10%, and is treatable if it is detected on time. A patient with CKD has a higher risk of cardiovascular mortality than of progression of its underlying renal disease. A new definition of CKD, based on estimated Glomerular Filtration Rate (eGFR) and kidney damage, facilitates its detection and management. CKD is detected with three simple tests: 1) Blood pressure measurement, 2) Detection of proteinuria or albuminuria in an isolated urine sample, and 3) Estimation of renal function (eGFR), based on serum creatinine, age, gender and race. The CKD risk groups are individuáis with diabetes, hypertension and a family history of renal disease. The most cost-effective measures are to detect and treat diabetic and hypertensive patients in the community. Therapy must emphasize the maximal reduction of cardiovascular risk. The complications of CKD such as anemia and renal osteodystrophy can be identified and treated on time. Most patients with chronic kidney disease are detected in the community, therefore their initial care must be organized at the level of primary care, along with programs for hypertension and diabetes.
Frecuencia y patrón cambiante del cáncer pulmonar en México
Medina-Morales Frumencio,Salazar-Flores Margarita
Salud Pública de México , 2000,
Abstract: OBJETIVO: Conocer la frecuencia, el tipo histológico y los cambios en cáncer pulmonar (CP) observados durante 40 a os, en el Instituto Nacional de Enfermedades Respiratorias (INER). MATERIAL Y MéTODOS: Estudio transversal realizado en el a o de 1999. Se revisaron los informes de labores del INER, de 1983 a 1996, y los archivos de Patología Quirúrgica, de 1957 a 1996. Se obtuvieron los datos de 1 961 pacientes con los que se calcularon medidas de frecuencia acerca de: el lugar que ocupa el CP en los ingresos al Instituto, los estudios histológicos, edad, sexo, espécimen y diagnóstico. RESULTADOS: Entre 1983 y 1996, el CP ocupó del octavo al segundo lugar en los ingresos al INER. Los resultados se dividieron por décadas, en las dos primeras (1957-1976), 9% fueron mujeres; en la tercera (1977-1986), 32%, y en la última (1986-1996), 38%. El carcinoma epidermoide predominó en las dos primeras décadas (61%) y el adenocarcinoma en las dos últimas con 41 y 62%, respectivamente. CONCLUSIONES: Actualmente el cp es más frecuente en mujeres y predomina el adenocarcinoma.
Avoided Band Crossing in Locally Periodic Elastic Rods
R. A. Mendez-Sanchez,A. Morales,J. Flores
Physics , 2005,
Abstract: Avoided band crossings have been studied theoretically and it has been shown that they can provide a tunning of the metal-insulator transition. Here we present an experimental example of an avoided band crossing for a classical undulatory system: torsional waves in locally periodic rods. To excite and detect the torsional waves, an electromagnetic-acoustic transducer for low-frequencies that we have recently developed, is used. Calculations performed using the transfer matrix method agree with the experimental measurements. In the observed avoided band crossing one level, which is a border-induced bulk level, moves from one band to the next.
Differential Effect on Two Immobility Responses by Chronic Administration of 1,3-di-o-Tolyl-Guanidine (Sigma Receptor Agonist) in Rats with Neonatal Ventral Hippocampal Lesion  [PDF]
Blanca Estela Jaramillo, Fidel De la Cruz, Genaro Vargas, Oscar O. Morales, Gonzalo Flores, Sergio R. Zamudio, Linda Garcés-Ramírez
Pharmacology & Pharmacy (PP) , 2014, DOI: 10.4236/pp.2014.57078
Abstract:

The effect of chronic administration of the sigma agonist: 1,3-di-o-tolyl-guanidine (DTG), in neonatal ventral hippocampal lesioned (nVHL) rats, on the immobility by clamping and dorsal immobility, were investigated. The nVHL increases the duration of immobility by clamping, but does not affect the duration of the dorsal immobility. We found that DTG augments the duration of the dorsal immobility in the unlesioned rats, but does not modify the duration of immobility induced by clamping the neck. DTG also counteracts the increase in the duration of the immobility by clamping produced by nVHL. However, the increase in the duration of the dorsal immobility produced by DTG is counteracted by nVHL. These results are discussed with respect to the differential effect on the two immobility responses tested, suggesting that they are different forms of immobility mediated by different mechanisms although they behaviorally share common characteristics.

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