Di-tertiarybutylnitroxide (DTBN), which they have tried to use as a trapping agent to identify the species giving rise to the photo-induced EPR signals in photosynthetic materials, functions as a Hill reagent with spinach chloroplasts. Evidence is presented which indicates that the reduction of DTBN is affected by photosystem II of the electron transport system of spinach chloroplasts. The reduced form of DTBN, the hydroxylamine, undergoes a photo-oxidation with spinach chloroplasts. Possible explanations of this apparent inconsistency are presented. A product which could be ascribed to a chemical coupling reaction between the nitroxide and the radical species giving rise to the photo-induced EPR signals in spinach chloroplasts was not detected, even using radioactive tracer methods.

Quarterly journal about library issues in Texas including collection development, programming and activities, managements, and other topics of interest.

Quarterly journal about library issues in Texas including collection development, programming and activities, managements, and other topics of interest.

This report is about the social scinces and public policy: A selected annotated Bibliography

Quarterly journal about library issues in Texas including collection development, programming and activities, managements, and other topics of interest.

This report is selected references

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This report provides a listing of congressional committees and subcommittees related to science and technology.

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This report addresses the degradation of lecithins and physiological functions in membranes of microsomes and mitochondria.

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This report is a selected bibliography containing information on books and scholarly articles written on the subjects of alcoholism, the effects of drunkenness, and medical and criminal justice perspectives on such issues. Most of the referenced works are from the 1960s.

This report addresses the detection, prevention, and retardation of menopausal osteoporosis.

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This report

This report concerns the Public Land Law Review Commission.

This report addresses the renewal of urban slums in the United States.

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This report contains information on Fluoridation, dental care issues, scientific studies related to fluoridation, and related information.

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Biennial report of the State Commission for the Blind describing goals, activities, and accomplishments during fiscal years 1968-1970.

Summary: "Forty tests were conducted with two amphibious tracked vehicles and one amphibious wheeled vehicle at Eglin Air Force Base, Fla., and near Khon Kaen, Thailand, to determine the vehicles' capabilities for exiting closed bodies of water. Empirical relations, based on the data collected in this study and in previous studies, are presented to support the conclusions that performance of amphibious tracked and wheeled vehicles (in terms of "go-no go") in the water-land interface can be correlated with soil strength (expressed as average cone index of the 0- to 6-in. soil layer), and that the slope-climbing ability in the water-land interface of the tracked vehicles tested compares favorably with that of the same vehicles operating on land surfaces of similar soil composition and consistency" (p. ix).

Magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.

The expansion of cities, industries, houses, super highways are fast absorbing the open spaces that once were so abundant in Texas.Personnel of state parks have provided various reports.