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A change in federal regulations that could usher in yet another--dare we use the word--revolution in electronic devices is believed to be just around the corner. Within a few weeks, or possibly even days, the Federal Communications Commission is expected to issue a "notice of proposed rule making" that would greatly expand the range of frequencies now available for wireless communications and radar systems that could detect the heartbeat of a victim trapped under a pile of earthquake rubble.

President Vicente Fox's National Action Party, or PAN, clung to a slim lead Sunday night in the Ciudad Juarez mayoral election, a closely watched race climaxing at a time of increasing national political turmoil and polarization. With 91% of the ballots counted in Mexico's largest border city, the PAN's Jesus Alfredo Delgado led with 127,557 votes, or 47.1% of those cast, to 123,080, or 45.4%, for Roberto Barraza of the Institutional Revolutionary Party, or PRI.

It's summertime in Southern California and the mercury is inching almost as high as the electricity rates. You're probably being a good little sweatmeister, conserving energy by using fans instead of air conditioning. Click wants to help in the power crisis, so here are a few sites guaranteed to make you feel as though L.A. is indeed a cool place. We'll start our hot-spot tour with Death Valley (http://www.nps.gov/deva), where summer temps often top 120 degrees.

Tutankhamen is an obscure historical figure, but he has been in the news for the past 70 years--ever since English archeologist Howard Carter stumbled across a stairway leading to the Egyptian boy king's lavishly furnished tomb. This week's story doesn't concern a new round of Tut-o-mania or the funerary objects that have captured the public imagination, however.

A year before the presidential election, this nation's oldest, most powerful party headed toward a destructive split resulting from the bitter enmity between its top leaders -- probable presidential nominee Roberto Madrazo and teachers union head Elba Esther Gordillo. Madrazo was to have resigned Tuesday as the Institutional Revolutionary Party's chief to campaign full time for next year's election. He would have been replaced by Gordillo under party rules.

Newspaper companies are giving Wall Street mixed news on the near-term earnings outlook. Dow Jones & Co., publisher of the Wall Street Journal, saw its shares slump Wednesday after the company said fourth-quarter earnings will fall below expectations owing to weak advertising. But rivals New York Times Co. and Knight Ridder Inc. said they expect to meet Wall Street's estimates. Tribune Co.

When David Williams first looked through the bulky contraption in his laboratory at the University of Rochester, he saw the world as he had never seen it before. His eyesight had become so crisp and so sharp that he could see tiny limbs on trees outside the lab that he didn't even know were there. "It reminded me of the first time I put on eyeglasses," said Williams, a "vision scientist" whose research has led to a much better understanding of how the human eye works.

One of these days, when you walk into a room your computer will probably know you're there because it can smell you. But for now, if you're on the cutting edge of research into the human-computer interface, the best you can hope for is a computer that will recognize your voice, know what you are looking at on the monitor, and allow you to reach out and grab it.

A seemingly simple change in federal law has crippled space-related research at universities across the country, barring many foreign exchange students from participating in research projects and forcing some universities to look warily at grants offered by industry and the government.