Wednesday, February 13, 2008

Growing Up to Prozac: Drug makes new neurons mature faster

The article is about a medicine that is an antidepressant, but that makes the brain have changes in different ways, like it makes the new born cells from the brain to mature earlier and faster.
This may have consecuences because if the cells mature before then they will die before so then it makes your brain to loose more and more cells every time that you take the medicine.
This medicine has been used since 1980, and this study was made with mice, they were given the medicine and the mice that were taking it, had more branch-like extensions in their neurons that are important for connecting those neurons with a lot of other ones, so in one way it helps but at the same time it’s making some kind of damage to the brain. But the thing is, that the medicine works when the brain cells mature, so that's what makes people not to be depressed.


I think that if people really need this medicine to not be depressed and it helps them is ok, but if later it becomes a drug for them, then people should think twice when they get it, because then it can be dangerous and can help them not to be depressed but later they would end up being addcits and maybe having brain cells problems, because they can grow slower and will die before, so there are a lot of things that can affect the brain with this type of medicine that at the end it is a drug that makes addict almost all the people that have it.

by: Marcela Murillo Trujano

Tuesday, February 12, 2008

diet = fattening???

this article is about a new and really important discovery, scientists experimented and discovered that the "diet" products just like diet coke, fake "diet" sugar and others that contain artificial sweeteners actually damage more and make people gain more weight than if they where consuming natural products or products with natural sweeteners, this means that artificial sweeteners make it harder to control your weight!!!!!

how did they find out about this?
Psychologists at Purdue University's Ingestive Behavior Research Center report that nine rats given yogurt sweetened with no-cal saccharin (artificial) ended up eating more and gaining more weight and body fat than eight fellow rats given yogurt containing plain old glucose (natural) (a simple sugar with about 15 calories per teaspoon, the same as table sugar).

Study authors Susan Swithers and Terry Davidson speculate the reason is that the faux sweetener messes with the brain, fooling it into revving up the body's metabolism in anticipation of a never-to-come calorie load. ****"The data clearly indicate that consuming a food sweetened with no-calorie saccharin can lead to greater body-weight gain and a diposity [fat] than would consuming the same food sweetened with a higher-calorie sugar,"

my opinion
I think this article is very interesting and important. I think people should not believe everything the companies such as coke and other say, because sometimes they just say it to sell more. I also think that its always better for people to consume the most natural products we can and the least artificial (they have to many chemicals we are not aware of and some can damage us, and we don't even notice it, because we are not informed) I think this article is really important and interesting and people should pay more attention to what they are consuming and not believe 100% what commercials or companies tell us, and to always try to go for the less artificial option!!

Maria Rubio!
powering cell phones by walking that is mine ryan smith

Powering Your Cell Phone Could Be a Walk in the Park

Powering Your Cell Phone Could Be a Walk in the Park

Exercising may help more then your muscles, it could create energy. By walking, jogging and running will power up a device on your thy and you will be giving energy to it. A team of researchers at the Simon Fraser University (S.F.U.) Locomotion Laboratory in Burnaby, British Columbia, are studying the amount of energy that can be generated by 3.5-pound (1.6-kilogram). How it will work? A steel knee braces worn while walking or running. Wearing a brace strapped on each leg, generating about five watts of electricity for each person during a new experiment. to run 10 cell phones concurrently and twice that needed to keep a computer running (something useful in developing regions of Africa where electricity is scarce). It produces 54 watts of power by running in place. When I read this I thought it was a really cool idea and it could help all over the world and it does not pollute.

European Space Lab

As everyone probaly know by now, I am facinated at everything about space. This tops my interedt though. The begining of a space lab. It is a exciting event for me as this could lead to many space discoveries. If what is happening is unclear, this is pretty much what it is. It is a science lab in space. This will be done by robotic arm. astranauts in space suits will perform this construction. There will be two autronauts working on this at a time. The name of this lab will be columbus. The article i am reading is pretty exact. It started at 9 : 13 am, I was probaly in bed at that time. So clueless that something so great had started. This will contribute too many things in which I would like to read about.

small as a sparrow

SMALL AS A SPARROW

When I red this article I was astonished by the fact that a recently found pterodactyl (yes the huge things that fly) could be as small as a sparrow. This is shocking because other digs came up with huge birds that where almost ten times bigger than these. This of course leads to the question “how many more small dinosaurs are their?” Also this pterodactyl had no teeth curved toes and a wingspan of just 25cm. But some of the bones on this bird where not fully grown so it could have been in its early years when it died. So when they say it was not a hatchling or newborn they may not be completely right yes it may have been in its early years but it is not newborn. And of course they have only found one of these so it may just be a diseased or sick one. It is also strange that they live in the canopy because most pterodactyls where supposed to live in mountains.

Monday, February 11, 2008

Netflix digs HD DVD grave deeper

Netflix has decided to go with Blu-ray disc format only. They will begin fazing out hd-dvd discs by no longer buying them and only buying in Blu-ray format. The stock should be fazed-out by the end of the year. Luckily in Canada, Zip.ca has not decided to go that way and keep both formats as the rental preference of customers is about 50-50.

I do not support this idea because blu-ray is not much more different than hd-dvd. Most people have dvd players in their homes so now consumers have to have an additional expense by buying new players so they don't want to have to go out and buy new players for no reason. Also, both formats are great inventions then again so was the VHS player. VHS players actually were better in my opinion because you didn't have to deal with scratched discs. There will always be something "better" invented. Betamax, VHS, DVD, Blu-ray or records, 8-track, cassettes, then back to CD's, then on to digital music. There will alwyas be a war, someone's got to win.