Tuesday, August 28, 2012

Tynsley Randolph Harrison - Harrison´s Principles of Internal Medicine


Tynsley Randolph Harrison was the editor of the first fifth editions of Harrison´s Principles of Internal Medicine, maybe the best known and most consulted teatise on Internal Medicine in the world.

He attended the University of Michigan and the Johns Hopkins School of Medicine. He did his Internship in the Peter Bent Brigham Hospital (later to be the Brigham and Women´s Hospital at Boston), and carried out his residency in Johns Hopkins and Vanderbilt.
He was a professor at the University of Alabama School of Medicine in Birmingham, Alabama for many years.

More of Him here:

http://en.wikipedia.org/wiki/Tinsley_Randolph_Harrison


Saturday, July 14, 2012

Interesting explanation of the Higgs Boson using sugar!

This BBC video explains the Higgs field and the  Higgs Boson using ping pong balls and sugar! Must be easy, then...

http://www.youtube.com/watch?v=ZzQpeqE_wLg&feature=related

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¡Este vídeo de la BBC explica el campo de Higgs y el bosón de Higgs utilizando pelotas de ping-pong y azúcar! Debe ser fácil, entonces...
http://www.youtube.com/watch?v=ZzQpeqE_wLg&feature=related

Statistics to look for the Higgs Boson

This is a clear explanation from a highly reliable source (the Fermilab) of how Statistics are used to search for subatomic particles.

http://www.youtube.com/watch?v=73JeQ2RZnwc

And this is a simple and staightforward explanation of what the Higgs Boson is:
http://www.youtube.com/watch?v=1SihuUElE48


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He aquí una explicación clara y procedente de una fuente altamente fiable (el Fermilab) de como la Estadística se usa en la búsqueda de partículas subatómicas.

http://www.youtube.com/watch?v=73JeQ2RZnwc

Y esta es una explicación simple y directa de qué es el Bosón de Higgs:

http://www.youtube.com/watch?v=1SihuUElE48

Thursday, July 12, 2012

WHO safety checklist

Tutorial video with intructions on how to perform the WHO checklist.

http://www.youtube.com/watch?v=CsNpfMldtyk

Another one on how NOT to perform it:

http://www.youtube.com/watch?v=REyers2AAeI

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Vídeo tutorial sobre como realizar la lista de comprobación de la OMS sobre seguridad en cirugía:

http://www.youtube.com/watch?v=CsNpfMldtyk


Otro vídeo sobre como NO realizar la comprobación:

 http://www.youtube.com/watch?v=REyers2AAeI

Monday, July 9, 2012

Whooping cough // Tos ferina

This is a mnemonic drawing to remember the main clinical feature of whooping cough: paroxysmal crisis of violent cough. In Spanis it is called "tos ferina", (Coughing like a beast)

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Dibujo mnemotécnico para recordar la característica fundamental de la TOS FERINA: Toser como una fiera. Crisis paroxísticas violentas de tos.

Monday, June 18, 2012

More on Homeopathy

http://jme.bmj.com/content/36/3/130.full

An editorial of the Journal of Medical Ethics titled Homeopathy is where the harm is: five unethical effects of funding unscientific ‘remedies’.

Homeopathy/ Homeopatía

First of all I must tell you that I am against the use of Homeopathy and its inclusion in the public Health system. I have gatherred enough information to confidently say that it does not work beyond the placebo effect, and that it cannot work (it is not possible from a scientific point of view). I am not against Hopeopathic doctors. I give them the benefit of the doubt and assume that they have no bad intention, but instead are very badly missinformed.
I have found out that this is the Homeopathy Awareness week. But, hold on, this is not an official campaign to warn public against the lack of effectiveness and quackery of Homeopathy! It actually is a marketing manouever to try to convince consumers to buy Homeopathy.
For this reason I am writing this article. I think it is necessary to be aware of what homeopathy claims to be, and what it really is.

FIRST. Homeopathy claims that sympthoms of a disease can be treated with a very tiny quantity of a drug that, in higher doses, will give those same unwanted sympthoms.

SECOND. According to Hopeopathy, the more diluted the drug, the bigger the effect (i.e. benefit).

THIRD. In Homeopathy drugs are diluted over and over, until you get the bottle or pill or whatever treatment the patient ultimately gets. Having diluted the drug so many times, it is IMPOSSIBLE to find a single molecule of the original drug in the treatment that the patient will have. (This has been proven and most homeopaths accept this fact).

FOURTH. As a means to figure out an explanation for the supposed activity of an homeopathic treatment, homeopaths have invented the ackward and totally nonsense theory that "Water has memory".

FIFTH. When properly tested, Homeopaty has not proven to be more effective than placebo.

You can find some interesting links on homeopathy further down:

http://www.youtube.com/watch?v=_ZhmG97lYog
A BBC Horizon doccumentary about homeopathy. Very informative.

http://www.youtube.com/watch?v=BWE1tH93G9U
James Randi explains how Hoeopathy works

http://www.elmundo.es/blogs/elmundo/desde_el_mas_alla/2012/06/18/homeopatia-gruyere.html
A link to a spanish newspaper science section.

http://www.badscience.net/2007/11/the-lancet-benefits-and-risks-of-homoeopathy/
An article by Dr. Ben Goldacre

http://www.1023.org.uk/why-you-cant-trust-homeopathy.php


http://skepticbarista.wordpress.com/2012/06/14/homeopathy-awareness-week-are-you-aware/

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Primero de todo he de decir que estoy en contra del uso de la homeopatía y su inclusión en el sistema público de salud. He recopilado suficiente información para afirmar con confianza que no fuciona más allá del efecto placebo, y que no puede funcionar (no es posible desde un punto de vista científico). No tengo nada en contra de los médicos homeópatas. Les ofrezco el beneficio de la duda y pienso que no tiene mala intención, simplemente están mal informados.
Me he enterado de que esta es la Semana De Concienciación sobre Homeopatía. Pero cuidado! No se trata de una campaña oficial para advertir sobre los peligros del charlatanerismo, sino que es una maniobra de marketing para convencer al público de que consuma homeopatía.
Por ese motivo he escrito este artículo. Para avisar al público sobre lo que la Homeopatía dice ser y sobre lo que realmente es.

PRIMERO. La homeopatía afirma que un síntoma puede tratarse con cantidades muy pequeñas de una substancia que, en dosis más altas produce los mismos síntomas que se quieren tratar (Curioso!!).

SEGUNDO. Según la homeopatía, cuanto más diluida esté la substancia, mayor será su efecto (es decir, su pretendido beneficio).

TERCERO. En homeopatía las substancias se diluyen una y otra vez hasta obtener el tratamiento que se le administra al paciente. Habiendo diluido la substancia tantas veces es VIRTUALMENTE IMPOSIBLE encontrar una sola molécula de la substancia activa. (Esto se ha probado científicamente y la mayor parte de homeópatas lo aceptan).

CUARTO. Para obviar este problema, los homeópatas han inventado la fabulosa (y totalmente sin sentido) explicación  de que el agua "tiene memoria".

QUINTO. Cuando se estudia apropiadamente, la homeopatía NO es más efectiva que el placebo.