Because changes in solar activity can modify the fluxes of cosmic-ray particles in the solar system, the nature of the galactic and solar cosmic rays and their interactions with matter are described and used to study the ancient sun. The use of cosmogenic nuclides in meteorites and lunar samples as detectors of past cosmic-ray variations are discussed. Meteorite records of the history of the galactic cosmic rays are reviewed. The fluxes of solar protons over various time periods as determined from lunar radionuclide data are presented and examined. The intensities of solar protons emitted during 1954 to 1964 (11-year solar cycle number 19) were much larger than those for 1965 to 1975 (solar cycle 20). Average solar-proton fluxes determined for the last one to ten million years from lunar /sup 26/Al and /sup 53/Mn data show little variation and are similar to the fluxes for recent solar cycles. Lunar activities of /sup 14/C (and preliminary results for /sup 81/Kr) indicate that the average fluxes of solar protons over the last 10/sup 4/ (and 10/sup 5/) years are several times larger than those for the last 10/sup 6/ to 10/sup 7/ years; however, cross-section measurements and other work are needed to …

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Kyle raises sheep"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Exhausted reporter Diane Hust, right, is passed by 60-year-old Onida Norman."

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Benny Coleman ( Choctaw wrestling)"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Joe Ray Coppenbarger works on the brush assembly section of a Burford right-handed twister tier machine."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cathy Cross, left, and Carolyn Rumsey sort through thousands of books in preparation of Bibliomania, a fundraiser for Omniplex."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Karen Bridges of Edmond (above) ran a 5:05 opening mile and posted a 35:26 winning time despite 30-mile-an-hour winds"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The leaders pull away from the rest of the crowd as the 10,000-meter race begins."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Winner Karen Bridges enters the home stretch."

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "And they're off ! Some 169 women (above) dig in at the start of the inaugural L'eggs YWCA 10,000-meter run at Lake Overholser Saturday."

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

A small experimental solar collector test facility has been established on the campus of the University of Chicago. This capability has been used to explore applications of nonimaging optics for solar thermal concentration in three substantially different configurations: (1) a single stage system with moderate concentration on an evacuated absorber (a 5.25X evacuated tube Compound Parabolic Concentrator or CPC), (2) a two stage system with high concentration and a non-evacuated absorber (a 16X Fresnel lens/CPC type mirror) and (3) moderate concentration single stage systems with non-evacuated absorbers for lower temperature (a 3X and a 6.5X CPC). Prototypes of each of these systems have been designed, built and tested. The performance characteristics are presented. In addition a 73 m/sup 2/ experimental array of 3X non-evacuated CPC's has been installed in a school heating system on the Navajo Indian Reservation in New Mexico. The full array has a peak noon time efficiency of approx. 50% at ..delta..T = 50/sup 0/C above ambient and has supplied about half the school's heat load for the past two heating seasons. Several theoretical features of nonimaging concentration have been investigated including their long term energy collecting behavior. The measured performance of the different systems shows clearly …

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Almost Finished"

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Spiderweb? Nope, they're actually rafters that will support the octagonal-shaped roof of the new sanctuary being added to the Highland Hills Baptist Church At Council Road and Devore Drive."