.... y por tanto dejaron de ser efectivas. Esto llevó a que por algún tiempo (y en la actualidad en pocos lugares en donde todavía se usa este tipo de pesticida), las dioxinas llegaron hasta nosotros no solo por el aire sino que directamente por los alimentos. Son lipofílicos, es decir solubles en las grasas y sus moléculas están unidas por enlaces fuertes que les dan una vida media entre los 7 y los 30 años, por esto se les llama moléculas persistentes. Existen una variedades de dioxinas, siendo las más tóxicas la 2,3,7,8 tetraclorodibenzodioxina (TCDD), la cual reúne a los Dibenz .....

.... diamond shaped face. Individuals can also be distinguished chromosomally, biochemically, and by their cranial characteristics. There is a great deal of individual variety in the orangutan. "Each orang-utan had a distinct personality and in dealing with such highly intelligent animals in captivity, the keeper's knowledge of the individual was probably more important than the knowledge of the overall behaviour patterns " (Markham, 1980). Orangutan males, however, appear to be totally intolerant of one another, especially the Borneo males who are even aggressive towards females and infants. .....

.... at an example program in which the omitted century is assumed to be '19' and the program's function is to figure out how old you are. If you were born in 1958, then in 1999 this program will calculate your age as 99 minus 58, or 41. That's fine, but what happens when the century rolls over to '20' in the year 2000? In this program, the year will appear as '00' but the century will still be assumed to be '19' -- so the program will calculate your age as 00 minus 58, or -58. Then, depending on the program's error-handling capacity, it might abnormally end or otherwise stop running; or it mig .....

.... began about 1970. The Strategic Arms Limitation Talks(SALT) was a convention held by the United States and the Soviet Union to limit the numbers in nuclear weapons. In 1982, the United States and the Soviet Union began the Strategic Arms Reduction Talks(START). Unlike the SALT talks, these were aimed at the number of nuclear weapons each country could obtain. Then there was another treaty signed in 1987 which was called the Intermediate Range Nuclear Forces(INF). This treaty called for the dismantling of ground-launched nuclear missiles. A major obstacle to controlling nuclear weapons has .....

.... of species, genera or even entire families of living creatures. This process is accelerating. Wildlife management efforts initiated during this century have been unsuccessful in stemming the tide. Most public attention given to endangered species has focused on mammals, birds, and a few varieties of trees. Ecologists recognize a far greater threat to the much larger number of species of reptiles, fish, invertebrates, and plants that are being wiped out by human activity. In the past few decades, vast areas in several regions of the world have been cleared to make room for urban devel .....

.... for MP3s is a program called Winamp. Winamp can be found at Winamp.com. I personally like this player because it has a digital equalizer, which gives you more control over the sound of the music. This player reads the songs directly off the hard drive so there is no need for a disk, CD, or tape of any kind. This player also has a feature of a playlist where songs can be added or deleted. Which gives another reason to choose MP3s over albums. The easy access and the convenience of being able to control the music you listen to has many record companies worried about the future of the .....

.... metal had gotten so hot it turned white. Although somewhat irrelevant to the short story about the Shooting Star Swords, meterites do play an important part in science to day, and help scientist decode the birth of earth, our sun, and even the galaxy in which we are in. Today whenever a meteorite is found it is closely strdied by teams of scientist, to see if it could decode some of the many questions we have about our galaxy, and even the many galaxies found around ours. A single meteorite that has traveled millions upon millions of light years could possibly unravell many of the questions .....

.... were separated based on their molecular weight. Extraction buffer did not produce protein bands. Proteins with huge molecular weight did not travel far from the gel while low molecular weight proteins traveled long distance . Overall banding contrast was compared between same sample with different transferred volumes. The protein bands of ADH were closely related to some of the bands of liver protein extract. ADH, which is derived from horse contains some of the protein that are related to the proteins found on cow's liver cells. Closely ranged Rf value is key to similarities that exist .....

.... away from brown bears (larger competitors). The only main risk for black bears are poachers who sell their parts illegally to the Asian medicinal market. In northern areas of Canada, the bear undergoes a remarkable metabolic transformation as it prepares for hibernation. Hibernation is an energy-saving process bears have developed to let them survive for long periods when there is insufficient food available to maintain their body mass. When they stop eating and become increasingly lethargic, the bear will enter a cave; dig out a den; or hole up in a dense brush pile, hollow log or tree c .....

.... engine shuts down. Also the gasoline engine is used to power the vehicle as it reaches the higher speeds where the added horsepower is needed. Usually the speed at which the gasoline engine starts is in the 30 mile per hour range. Even as the gasoline engine runs the electric motor continues to provide power for the vehicle. This vehicle combination in my opinion is beneficial economically and environmentally. There are many benefits for the hybrid vehicle. The price of hybrid cars present day is near seventeen thousand dollars. Some schools have their own homemade hybrid vehicles. The .....