Ultrafast transient absorption spectroscopy: principles and application to photosynthetic systems

The photophysical and photochemical reactions, after light absorption by a photosynthetic pigment–protein complex, are among the fastest events in biology, taking place on timescales ranging from tens of femtoseconds to a few nanoseconds. The advent of ultrafast laser systems that produce pulses with femtosecond duration opened up a new area of research and enabled investigation of these photophysical and photochemical reactions in real time. Here, we provide a basic description of the ultrafast transient absorption technique, the laser and wavelength-conversion equipment, the transient absorption setup, and the collection of transient absorption data. Recent applications of ultrafast transient absorption spectroscopy on systems with increasing degree of complexity, from biomimetic light-harvesting systems to natural light-harvesting antennas, are presented. In particular, we will discuss, in this educational review, how a molecular understanding of the light-harvesting and photoprotective functions of carotenoids in photosynthesis is accomplished through the application of ultrafast transient absorption spectroscopy

Genome and epigenome wide studies of neurological protein biomarkers in the Lothian Birth Cohort 1936

Although plasma proteins may serve as markers of neurological disease risk, the molecular mechanisms responsible for inter-individual variation in plasma protein levels are poorly understood. Therefore, we conduct genome- and epigenome-wide association studies on the levels of 92 neurological proteins to identify genetic and epigenetic loci associated with their plasma concentrations (n = 750 healthy older adults). We identify 41 independent genome-wide significant (P

Lawn and ornamentals research [1965]

Foreword / R. W. Kottman -- Quality lawn seed / D. W. Graffis -- Bentgrass varieties for golf courses and lawns / R. R. Davis and R. W. Miller -- Varieties of Kentucky bluegrass / R. W. Miller and R. R. Davis -- Maintenance fertilization of Kentucky bluegrass / R. R. David and R. W. Miller -- Crabgrass can be controlled / R. W. Miller and R. R. Davis -- Controlling broadleaf weeds in lawns / G. B. Triplett, Jr. and R. R. Davis -- Turf insect control / J. B. Polivka -- Ornamental crabapples / L. C. Chadwick -- Shade trees for Ohio lawns and streets / O. D. Diller and L. C. Chadwick -- Arboretums help beautify America / O. D. Diller -- Changing the grade level around trees / L. C. Chadwick and K. W. Reisch -- Anti-dessicants aid in transplanting shrubs / K. W. Reisch and E. M. Smith -- Growth retardants speed flowering / K. W. Reisch and P. C. Kozel -- Control of weeds in ground covers / L. C. Chadwick -- Chlorosis of pin oaks and other ornamental trees / L. C. Chadwick -- Diseases of woody ornamental plants / G. J. Bart -- A guide to the more common insect and mite pests of shade trees and ornamentals / R. W. Rings and W. K. Delaplane, Jr

Lawn and ornamentals research, 1966

Lawn grasses, mixtures, and blends / R. R. Davis -- Kentucky bluegrass varieties / M. H. Niehaus and R. R. Davis -- Bentgrass varieties for golf courses and lawns / R. W. Miller and R. R. Davis -- Spot treatment for perennial grass weeds / G. B. Triplett, Jr. and R. R. Davis -- Turf insect problems / J. B. Polivka -- Diseases of turfgrasses / H. A. Runnels -- Stripe smut of merion Kentucky bluegrass / R. E. Partyka -- Shade trees for yard and street beautification / O. D. Diller -- Fifty outstanding shade and ornamental trees / L. C. Chadwick -- Fifty choice shrubs and small trees / L. C. Chadwick -- Fifty outstanding shrubs and small trees with ornamental fruits / L. C. Chadwick -- Some recommended uncommon shrubs / L. C. Chadwick and K. W. Reisch -- Taxus--Yew / L. C. Chadwick and K. W. Reisch -- The viburnums / K. W. Reisch -- Pruning ornamental plants / K. W. Reisch and L. C. Chadwick -- Woody plant viability research / K. W. Reisch and F. K. Buscher -- Freeze injury on ornamental plants--Spring 1966 / K. W. Reisch and L. C. Chadwick -- Wilt diseases of trees and problems associated with control / G. J. Bar

Research at the Western Branch [1967]

Facts about the Western branch -- Daily and weekly weather observations / J. B. Jones, Jr. and M. Miller -- Spring oat variety test / D. A. Ray -- Winter barley variety test / D. A. Ray -- Winter wheat variety testing / H. N. Lafever -- Bird-resistant grain sorghum / M. H. Niehaus -- Alfalfa variety test / G. R. Gist -- Strains and varieties of soybeans / P. E. Smith -- Corn hybrid trails-evaluation of progress from mass selection / W. R. Findley and E. J. Dollinger -- The effect of planting date on corn growth and yield / J. B. Jones, Jr. -- Nitrogen for continuous corn / J. B. Jones, Jr. and H. J. Mederski -- Factors influencing the infectiveness and effectiveness of rhizobium japonicum on soybeans / R. H. Miller -- Phosphorus on continuous corn / D. J. Hoff -- Herbicides on soybeans / E. W. Stroube -- Herbicides on corn / E. W. Stroube -- Evaluation of herbicide treatment for Canada thistle control / D. E. Herr and E. W. Stroube -- Evaluation of tillage systems / S. W. Bone, A. J. Baxter and G. B. Triplett, Jr. -- Long term soil and crop management study / D. M. Van Doren, Jr. and G. B. Triplett, Jr. -- High yield corn and soybean demonstration -- Total corn yields from pickers and combines / W. H. Johnson and J. E. Henry -- Influence of corn row spacing on harvest losses / W. H. Johnson and J. E. Henry -- Corn moisture and lodging by date / W. H. Johnson -- Evaluation of resistance of corn to corn rootworm / J. B. Polivka -- Evaluation of insecticides for control of the corn rootworm / J. B. Polivka and O. Hedden -- Swine breeding research / L. A. Swiger and W. R. Harvey -- Effect of reduced feed intake on sow performance / H. S. Teague and A. P. Grifo, Jr. -- Transmissible gastroenteritis and colibacillosis / E. H. Bohl and E. M. Kohle