Biología - Otros

Medio de contraste con modelo de vasos sanguíneos

When a blood vessel model is irradiated with X-rays, the blood vessels themselves are not visible at first. It is only after the injection of a contrast medium that the blood vessels become visible.

Tasks

1. Inject a 50% potassium iodide solution into the blood ...

Determinación de la constante de Michaelis (con Cobra4)

Principle

The enzymatic hydrolysis of urea in aqueous solution liberates carbon dixide and ammonia. The ions of these compounds increase the conductivity of the solution. Conductivity measurements can so be made to determine the rate of hydrolysis of urea by the enzyme urease at various ...

Principios básicos de la resonancia magnética nuclear (NMR)

• Spin nuclear
• Núcleos atómicos con momento magnético
• Precesión de los spines nucleares
• Magnetización
• Condición de resonancia, frecuencia MR
• Angulo de volteo o rotación (flip)  MR
• Señal FID ...

Tiempos de relajación en la resonancia magnética nuclear (NM R)

The principles of relaxation processes using the MR technology are demonstrated. Experiments are executed with the MRT training device giving the opportunity to investigate some small probes in the sample chamber. Device control is done with the provided software. ...

Codificación espacial en la resonancia magnética nuclear (NM R)

Principle

It should be demonstrated how spatial encoding does work in the MR technology. Experiments are executed with a MRT training device giving the opportunity ton investigate some small probes in the sample chamber. Device control is done with the provided software. Investigations ...

Formación de imágenes con la resonancia magnética nuclear (N MR)

• Spines nucleares
• Precesión de spines nucleares
• Condición de resonancia
• Frecuencia MR
• Señal FID (decaimiento de inducción libre)
• Campos de gradiente magnético
• Decodificación espacial (codificación de ...

Resonancia magnética (RM) II



Principle

The aim of these experiments is to show how the spin echo technique can be used to generate 2D MR images of a slice of a well-defined thickness, orientation, and size (Localized Spin Echo 2D). These parameters determine the so-called "field of view" (FOV) of the MR image. ...