5 resultados para Botánica-México-Matehuala, San Luis Potosí

em Universidad de Alicante


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Los migrantes y sus parejas han sido incorporados en los discursos institucionales de salud como “sujetos en riesgo” frente a las Infecciones de Trasmisión Sexual (ITS), sin embargo la incorporación de esta población específica en la comunicación y gestión del riesgo de ITS ha sido ambigua en el contexto mexicano. El objetivo del presente acercamiento fue conocer las prácticas de autocuidado sexual y reproductivo que adoptan en su cotidianeidad mujeres parejas de migrantes y la relación de dichas medidas con la comunicación y gestión del riesgo que los Servicios de Salud realizan. Se trató de una aproximación de tipo cualitativo con 20 mujeres “de migrantes” localizadas mediante los servicios de salud, la información se recabó a través de entrevistas a profundidad que focalizaron en las esferas de “percepción del riesgo” y “Autocuidado sexual y reproductivo”. Se encontró que la mayoría de las mujeres no se reconoce vulnerable frente a las ITS y que la percepción del riesgo no es determinante en la confrontación que respecto a la amenaza puedan desarrollar, dado que los imaginarios patriarcales que prevalecen en ellas, sus parejas y el personal de salud desestiman la utilización de medidas de prevención y detección oportuna.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Teachers are deeply concerned on how to be more effective in our task of teaching. We must organize the contents of our specific area providing them with a logical configuration, for which we must know the mental structure of the students that we have in the classroom. We must shape this mental structure, in a progressive manner, so that they can assimilate the contents that we are trying to transfer, to make the learning as meaningful as possible. In the generative learning model, the links before the stimulus delivered by the teacher and the information stored in the mind of the learner requires an important effort by the student, who should build new conceptual meanings. That effort, which is extremely necessary for a good learning, sometimes is the missing ingredient so that the teaching-learning process can be properly assimilated. In electrical circuits, which we know are perfectly controlled and described by Ohm's law and Kirchhoff's two rules, there are two concepts that correspond to the following physical quantities: voltage and electrical resistance. These two concepts are integrated and linked when the concept of current is presented. This concept is not subordinated to the previous ones, it has the same degree of inclusiveness and gives rise to substantial relations between the three concepts, materializing it into a law: The Ohm, which allows us to relate and to calculate any of the three physical magnitudes, two of them known. The alternate current, in which both the voltage and the current are reversed dozens of times per second, plays an important role in many aspects of our modern life, because it is universally used. Its main feature is that its maximum voltage is easily modifiable through the use of transformers, which greatly facilitates its transfer with very few losses. In this paper, we present a conceptual map so that it is used as a new tool to analyze in a logical manner the underlying structure in the alternate current circuits, with the objective of providing the students from Sciences and Engineering majors with another option to try, amongst all, to achieve a significant learning of this important part of physics.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

In this work, we propose an inexpensive laboratory practice for an introductory physics course laboratory for any grade of science and engineering study. This practice was very well received by our students, where a smartphone (iOS, Android, or Windows) is used together with mini magnets (similar to those used on refrigerator doors), a 20 cm long school rule, a paper, and a free application (app) that needs to be downloaded and installed that measures magnetic fields using the smartphone's magnetic field sensor or magnetometer. The apps we have used are: Magnetometer (iOS), Magnetometer Metal Detector, and Physics Toolbox Magnetometer (Android). Nothing else is needed. Cost of this practice: free. The main purpose of the practice is that students determine the dependence of the component x of the magnetic field produced by different magnets (including ring magnets and sphere magnets). We obtained that the dependency of the magnetic field with the distance is of the form x-3, in total agreement with the theoretical analysis. The secondary objective is to apply the technique of least squares fit to obtain this exponent and the magnetic moment of the magnets, with the corresponding absolute error.

Relevância:

40.00% 40.00%

Publicador:

Resumo:

El presente estudio describe la comunidad de macroalgas epizóicas de Pinctada mazatlanica y la compara con la del substrato rocoso. Colectamos un total de 36 muestras de la comunidad de macroalgas, 18 muestras sobre ostras y otras tantas sobre substrato rocoso en la Península San Juan Nepomuceno, bahía de La Paz, México. Las algas fueron colectadas mediante buceo SCUBA raspando las distintas superficies (25 cm2 de substrato rocoso). El tamaño de muestra fue ajustado por curva de acumulación de especies y expresado con un modelo polinomial. Comparamos las comunidades de algas con análisis multivariantes de similitud basados en el índice de Bray-Curtis, entre substratos, diferentes alturas de ostras perleras y profundidades. Encontramos 27 especies de algas epizóicas (15.4% Clorophyta, 3.8% Phaeophyta y 80.8% Rhodophyta) con una disimilitud de 71.16% con respecto al substrato rocoso. El dendrograma mostró tres agrupaciones de macroalgas en P. mazatlanica. El primero caracterizado por Chondria, Jania, Herposiphonia tenella y Gracilaria. El segundo compuesto por Jania, Polysiphonia acuminata, P. decusata y Spyridia filamentosa. El tercero constituido por Polysiphonia sp., Jania, Herposiphonia tenella, Ceramium canouii y Amphiroa sp. Estas agrupaciones y los talos filamentosos de las algas epizóicas corresponden a estados iniciales de sucesión.

Relevância:

40.00% 40.00%

Publicador:

Resumo:

Este trabajo se ha llevado a cabo en el marco del proyecto FOMIX CONACYT-Gobierno del Estado de Campeche: "Influencia del entorno urbano en los procesos de degradación de edificios militares y religiosos de la época colonial en la ciudad de Campeche", clave: CAMP2005-C01-028.