Monthly Archives: April 2013

Gastric Band

If you are looking to reduce your weight quickly and permanently, the gastric band is without a doubt your best option. The gastric band is a surgery that involves little risk, and involves placing a band around the stomach, to control the amount of food as well. The upper part of the already divided stomach is much smaller than the bottom. What happens is that he creates an effect of hourglass where it is permitted to accept a small portion of food. This way, the patient will feel full soon, which in the long run will make you lose weight unchanged way, avoiding the excesses in the diet.

The gastric band is an adjustable silicone band, which allows that it adapts over time according to the needs of the person. Enough a special needle, the surgeon to perform the necessary adjustment, thus, shall not be subject to new surgeries. Surgery of the gastric band that lasts little more than one hour, requires general anesthesia, however, to be a laparoscopic surgery, the bleeding is virtually nil. The gastric band has long-term results. It is estimated that the person loses 40% of the weight in two years from the completion of the operation.


What is a nanotube? You could define nanotube, as a kind of tiny dimensions tube, formed that usually with a rolled sheet of graphite, so it also tends to acquire the name of carbon nanotube, but other materials can also be used for its construction as Silicon or Boron Nitride. These carbon nanotubes, shaped allotropic, and depending on the degree of curl of the same, acquire different diameters and internal structures. They are subject to numerous studies, since due to its characteristics, it is capable of supporting its own weight suspended on our planet, and for this reason, it believes that they could be used in the construction of a space elevator, something that would be a technological breakthrough. History: while humans throughout history made use of nanotubes with great frequency, was not aware of many of their applications until a recent time, specifically in 1991, the year in which became globally famous and began the research to its around. The first time that we can meet with nanotubes, throughout history, we must go back to 1889, when Hugues and Chambers, decided to patent a procedure in the manufacture of carbon filaments, using hydrogen and methane as precursor gases, in a crucible of iron. Almost seventy years later, in 1952, two Russian scientists, Radushkevich and Lukyanovich, performed an admirable work, taking pictures of 50 nanotubes, but his work not gained importance due to the cold war. Subsequently, individual works on these strange tubes, not taking reference of ancient works were published.

In 1985, the primos-hermanos of nanotubes, Fullerenes, that are discovered, instead of having tube shape, have it sphere, the discovery was a serendipity, which awarded the nobel prize in 1996 to its discoverers. And finally in 1991, nanotubes, discovered while he was investigating to Fullerenes, and research that have developed since then they could mean a breakthrough in technology and quality of human life. Kinds of nanotubes: monolayer (Single-Walled Nanotubes): as its name already indicates, they are single layer nanotubes, and they have certain electrical characteristics not shared with siblings nanotubes, and so it can be used for the creation of TRT (transistors) and logic gates (are basically different circuits formed by transistors). Multilayer (Multi-Walled Natotubes): Formed by several layers of nanotubes arranged as the famous Russian dolls (one above the other), or as a newsprint wrapping. They are more complex than the previous ones. Bilayer (Double-Walled Nanotubes): Made up of two layers, share characteristics similar to those of the monolayer or SWN. Which applications do? Nanotubes have various applications and most seem to science fiction, are able to transform solar energy into electricity (solar panels), can be used as supercapacitors, without forget that could be its a step agigantado in technology of our computers, serving as transistors, tiny pieces that are the reason why aren’t large rooms with great demand for electric power. It also has other applications, but they are so diverse that I would be impossible to name them all.

Seams Aside

Leaking Seams Aside from the overuse of cleaning solutions and the application of silicone protectant on inflatable boats, there is nothing else to boat owner can do to cause the boat s seams to leak. Almost all leaks on seams are caused by hitches in the manufacture and unless your boat is still under warranty you need to take your leaky inflatable to an appropriate repair shop. Wicking is the tendency of air in the inflatable to escape from the inflation chambers by following the thread from one end to the other. This dilemma is common to more expensive boats because the heavy fabrics are not completely soaked or coated with PVC or Hypalon or neoprene. Wicking is not really a problem but it can prove to be remove an annoyance and can become worse over time that you will need to have it repaired. Convertor leaking fabrics become inevitable in old boats even if there is no large abrasion. A large abrasion usually can cause wicking too.

To repair wicking and convertor leaking fabrics, you can paint the exterior or the interior or do both seal. Inflatable Paints It is not easy to detect wicking and convertor leaking fabrics as it will remain undetected using the soap bubble solution method. Some wicking or convertor leaking fabric might be evident if the boat needs to be pumped several times a day and still look limp at the end of day. You can fix and protect your boat by applying a couple of coats of paint inflatable. Yes, there are paints for inflatable boats repairing solely. Studies made by the US Army found that such paint can effectively stop leaks made by pinholes as large as 0.045 inch. However before you coat your boat, make sure that you patch up any visible holes and punctures. There are several credible brands that manufacture paints for inflatables.

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