Carpal tunnel syndrome (By Alex and Marquitos)

Carpal tunnel syndrome (CTS), is a dissease of the nervous system , the nerves are not conected in the right form or there are a problem in the axons, it can produce a lot a sympthoms. 
And it is one of the most common laboral disseases.

Carpal tunnel syndrome occurs when the median nerve, which go from the forearm into the palm of the hand, becomes pressed or squeezed at the wrist. The median nerve controls sensations to the palm side of the thumb and fingers (although not the little finger), as well as impulses to some small muscles in the hand that allow the fingers and thumb to move. The carpal tunnel - a narrow, rigid passageway of ligament and bones at the base of the hand - houses the median nerve and tendons. Sometimes, thickening from irritated tendons or other swelling narrows the tunnel and causes the median nerve to be compressed. The result may be pain, weakness, or numbness in the hand and wrist, radiating up the arm.




Carpal tunnel syndrome is common in people who perform repetitive hand and wrist. Typing on a computer keyboard is probably the most common cause of this syndrome. Other causes include:

    

    
    



     * Sew
     * Driving
     * Work on an assembly line
     * Paint
     * Write
     * Use tools (especially hand tools or tools that vibrate)
     * Sports such as racquetball and handball
     * Playing musical instruments

The condition often occurs in people 30 to 60 years and is more common in women than in men.

Many health problems are associated with carpal tunnel syndrome, including:

     * Bone fractures and arthritis of the wrist
     * Acromegaly
     * Diabetes
     * Alcoholism
     * Hypothyroidism
     * Renal and Dialysis
     * Menopause, premenstrual syndrome (PMS) and pregnancy
     * Infections
     * Obesity
     * Rheumatoid arthritis, lupus erythematosus (SLE) and scleroderma

DNA

Until recently, studies of paternity by “DNA analysis” were the subject of fiction. Its high cost and scarcity of specialized laboratories restricted the use of DNA testing to situations of extreme need, as police cases, or medical research. For legal and family issues, commissioning a biological analysis of paternity was extremely costly in time and money.

Determination of paternity

DNA tests to determine paternity is made by comparing the DNA sequence of the parent, child and mother. The combination of the DNA sequences of the father and mother should result in the sequence of the boy / girl, only this way will have a security, usually over 99%, over the paternity of the child.

Determination of motherhood

In some cases is to determine what is the maternal genetic line, in this case is used mitochondrial DNA transmitted to the child's mother / daughter and that in turn is transmitted by them to their descendants.

Curiosities:

Is it possible to do a paternity test without the presence of the biological mother?
Yes, this test requires additional testing, ensuring an accuracy similar to that performed in the presence of the mother.

Is it possible to do a paternity test before birth of the child?
Yes, it is from week 12 of pregnancy through an analysis of CVS called, and after 16 weeks of pregnancy is also possible to do in amniotic fluid through amniocentesis. The taking of these samples is performed in specialized medical office under ultrasound control constant, and can be complemented by chromosome analysis or other genetic analyzes.

Can you do a paternity test to a deceased person?
Paternity testing can be done even if there are people involved in establishing paternity allowing died many years after death.

Is it the same blood sample or saliva sample?
Yes, it is exactly the same, the source of a sample for DNA does not affect the paternity test.

By: Merce and Cris ;)

The "eternal" light

Benito Muros is the name of a Spanish man who says that he has discovered the light bulb that is for all lifelong. He also says that light factories program bulbs to fail and have to buy more and more.
Benito has discovered this bulb after 11 years of research and differs from others in that it is programmed to break down and it is said that can last a lifetime.
Everything started 11 years ago when he went to Livermore, in California. There was a bulb turned on uninterrupted since 111 years, he spoke with the descendants of the creators but there wasn't much information about that. He looked for more information and had enought to start looking by himself.
The bulb created by EPO Electrics responds to today's need for a compromise with the environment. As it lasts a lifetime, does not generate waste. At the same time, allows energy savings of up to 92% and emits up to 70% less CO2.

Polly sheep

Polly was born in 1997 in Edinburg. It was the first clonic and transgenic cloned mammal.
This sheep was created few months after Dolly. It had a human gen implanted in a enmbryo cell.
It was named "Polly" because it type was Poll Dorset.
It was created with the purpose of use its milk, which had a human protein, as a cure for hemophilia and osteoporosis.

Siamese

Siamese, are twins which are still together after birth. This is very inusual, in 200.000 births only 1 use to be siamese but the half part use to death. This fact is usually found in females twins.
There isn't a scientific explication for this fact still, but scientists think that it's a problem of a recesive gen.
Might think that the drugs used for fertility produce this kind of phenomenon, but has not yet been proven that these keep some relationship, although there is a connection between these drugs and multiple births.

Classification of seamese twins
Siamese twins are cataloged by the body parts which they share.

·Symmetrical

Symmetrically conjoined twins are rare and a complex problem. This is rare, because it occurs in exceptional cases. Many born dead, but at present a lot of them survive but they required surgery for their separation.

·Asymmetric

In the case of conjoined twins asymmetrically, one of which is smaller and depends on the other. The smaller, usually incomplete, acts as a kind of parasite.
these are Daisy and Violet Hilton. Her mother rejects them at birth, and her midwife adopted them. They lived from 1908 to 1969.

Yoyu can see this video, which shows siamese life, nowadays: http://www.youtube.com/watch?v=zPMXi1xAwn0