les nouvelles applications des biotechnologies
Selon l’Organisation de coopération et de développement économiques (OCDE), il faut regrouper sous le terme « biotechnologies», toutes les applications de la science et de la technologie à des organismes vivants ou à leurs composantes, produits ou modélisations dans le but de modifier des matériaux, vivants ou inertes, à des fins de production de connaissances, de biens ou de services.
Enfermedades no transmisibles
Las enfermedades no transmisibles, como la diabetes, el cáncer y las cardiopatías, son colectivamente responsables de más del 70% de todas las muertes en el mundo, es decir, de la muerte de 41 millones de personas. Esto incluye a 15 millones de personas que mueren prematuramente entre los 30 y 69 años.
¿Sabes para qué se usa un biofotómetro?
Para comprender que es un Biofotómetro y cómo funcionan estos equipos es necesario que conocer el concepto de espectrofotometría. Esta disciplina es un método científico utilizado para medir cuánta luz absorbe una sustancia química, midiendo la intensidad de la luz cuando un haz luminoso pasa a través de la solución muestra, basándose en la Ley de Beer-Lambert. La medición también puede usarse para medir la cantidad de un producto químico conocido en una sustancia.
Do you know what a biophotometer is used for?
To understand what a biophotometer is and how these equipment work, it is necessary to know the concept of spectrophotometry. This discipline is a scientific method used to measure how much light a chemical absorbs, by measuring the intensity of light when a light beam passes through the sample solution, based on Beer-Lambert’s Law.
A GPS for inside your body
Wireless system suggests future where doctors could implant sensors to track tumors or even dispense drugs Researchers from MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) led by professor Dina Katabi are working on exactly that with ReMix, a system that they describe as an “in-body GPS.”
La polución aumenta los ingresos hospitalarios de niños
La salud de los niños es un reflejo casi exacto de la contaminación ambiental. Los picos de polución se corresponden con un aumento de ingresos hospitalarios de niños. La relación es lineal, según las conclusiones de un estudio hecho con los datos de seis años de altas en el Hospital Niño Jesús de Madrid, lo que indica que las consecuencias en salud se relacionan directamente con la variación de las condiciones ambientales.
Earth’s magnetic pole reverses
For about thirty years, the magnetic north pole has been moving faster and faster, leaving Canada towards Siberia. This abrupt change is still difficult to explain but could well be the beginning of a reversal of the magnetic poles. In any case, scientists must increasingly review the magnetic model of the Earth that serves as the basis for modern navigation systems.
Centrifuges: between science and industry
A centrifuge is a device that applies a sustained centrifugal force (i.e. a force produced by rotation) to move material away from the center of rotation. This principle is used to separate particles in a liquid medium by sedimentation. It is a machine used primarily for the separation of heterogeneous liquid-solid mixtures and liquid mixtures such as mutually insoluble liquids with different specific gravities.
The centrifuges: between science and industry
A centrifuge is an apparatus that applies a sustained centrifugal force (that is, a force produced by rotation) to impel matter out of the center of rotation. This principle is used to separate particles in a liquid medium by sedimentation. It is a machine that is used, above all, for the separation of heterogeneous liquid-solid mixtures and liquid mixtures such as insoluble liquids with different specific weights.
How is calcium deficiency diagnosed?
The Hypocalcemia is a relatively frequent finding in medical practice, and its clinical presentation is variable and is defined as the decrease in total calcium concentration below its reference value, which is usually 8.5 mg/dl. The clinical signs of hypocalcemia are mainly due to neuromuscular irritability and are more evident and intense when the onset of hypocalcemia is acute.