Cell-phones are part of a growing mountain of electronic waste like computers and personal digital assistants.

Consider again the cell-phone, and imagine the mines that produced those metals, the factories needed to make the box and packaging (包装) It came in.

I am Peter Hodes, a volunteer stem cell courier.

I want to fix my cell phone.

In the United States alone, over 100 million cell-phones are thrown away each year.

When most of us get a text message on our cell phone from an unknown person, we usually say \Sorry?\

Lindsey, do you like to text message on your cell phone? Good morning, Mr.Johnson.

These days, the time is everywhere: not just on clocks or watches, but on cell-phones and computers.

Radios, cell phones, bicycles, pocket calculators, and books have all been reported stolen.

There's no way on earth that genes from an alga should work inside an animal cell, says sidney pierce from the University of South Florida.

A recent study said that 40% of American teens claim to have been in a car when the driver used a cell phone in a way that put people in danger.

So, Lindsey, do you like to text message on your cell phone?

Cell phones provide instant access to people.

survey, about half the teens polled said that their cell phone hadimproved their communication with friends

Almost all said that their cell phone was the way they stayed in touch with peers, one-third had used the cell phone to help a peer in need, and about 80% said the phone made them feel safer.

In Japan, too, researchers are concerned about cell phone addiction.

Cell phonesfoster social connections with peers across time and space

Cell phones also can diminish social tolerance because they reduce children's interactions with others who are different from them.

In addition to connecting peers, cell phones connect children and parents

Students already have laptops and cell phones, of course, but the newest devices can take class distractions to a new level.

Abilene Christian settled on the devices after surveying students and finding that they did not like hauling around their laptops, but that most of them always carried a cell phone, Dr. Dickson said.

Many cell phones allow users to surf the Web, but only some newer ones are capable of wireless connection to the local area computer network.

Recently, the UK National Stem Cell Network warned the UK could lose its place among the world leaders in stem cell research unless adequate funding and legislation could be assured.

They don't like to associate technology with food,\ said Nicholas Genovese, a visiting scholar in cancer cell biology.

Director of the Advanced Tissue Biofabrication Center in the Department of Regenerative Medicine and Cell Biology at the medical university, Mironov now primarily conducts research on tissue engineering, or growing, of human organs.

Both bus tours forbade the use of cell phones but one tour provided digital cameras and encouraged people to take photos.

For starters, protein is critical for every cell in our body.

It is also critical for socially charged neuroscience issues such as the genetic basis for a particular behavior, the therapeutic potential of stem cell therapy for neurodegenerative diseases, or the use of animal models, areas where the public understand

Most tests require collecting cells by webbing saliva in the mouth and sending it to the company for testing.

But brain researchers have discovered that when we consciously develop new habits, we create parallel synaptic paths, and even entirely new brain cells, that can jump our trains of thought onto new, innovative tracks.

Professional scientists are expected to know how to analyze data, but statistical errors are alarmingly common in published research, according to David Vaux, a cell biologist.