Zobrazeno 1 - 10
of 21
pro vyhledávání: '"B. S. Collins"'
Publikováno v:
Molecular Ecology. 9:1247-1252
Once thought to be dominated by a few genets, clonal plant populations can contain high levels of genetic diversity. Sexual reproduction and vegetative growth strategy affect the amount and distribution of genetic diversity within clonal plant popula
Publikováno v:
Archives of Andrology. 30:183-191
This investigation was conducted to evaluate whether or not experimentally produced epididymitis could induce the development of cytotoxic sperm antibodies and if effective antibiotic therapy could reverse the development of immunity to sperm. Escher
Publikováno v:
Applied optics. 9(7)
A large King furnace is described for use in the measurement of relative oscillator strengths by the absorption method. Design criteria are discussed, and representative traces of absorption lines obtained with the Oxford low noise spectrometer are s
Autor:
B S, Collins, S H, Custis
Publikováno v:
Military medicine. 158(6)
The evolution of health promotion in the military is reviewed and contrasted with developments in private sector activities. Programs in both arenas generally take a mechanistic, mortality and risk factor-based approach which targets lifestyle and be
Autor:
Lisa Duncan, Rebecca R. Sharitz, John J. Dilustro, Beverly Collins, L. K. Duncan, B. S. Collins
Publikováno v:
Journal of the Torrey Botanical Society. 129:289
intervals) and differ in soil texture (from sandy to clayey) and intensity of military training (lighter dismounted infantry vs. heavier mechanized training). We characterized surface soil texture and land-use disturbance of 32 sites, each 400 m X 40
Autor:
B. S. Collins, G. R. Wein
Publikováno v:
Bulletin of the Torrey Botanical Club. 120:38
COLLINS, B. AND G. WEIN (Savannah River Ecology Lab, Drawer E, Aiken, SC 29802). Understory vines: Distribution and relation to environment on a southern mixed hardwood site. Bull. Torrey Bot. Club 120: 38-44. 1993.-We characterized the small-scale d
Autor:
B. S. Collins, J. E. Pinder
Publikováno v:
The Journal of Ecology. 78:66
The spatial distributions of soil moisture and nutrient content, germinable seeds and flowering annual forbs around individual perennial bunch grassses, and the distribution of flowering forbs around points where grasses were removed, were analysed t
Publikováno v:
Optical and Quantum Electronics. 13:35-45
The sensitivities of heterodyne and direct-detection systems at CO2 laser wavelengths are compared to illuminate the design principles involved. It is shown that destruction of the temporal coherence of scattered radiation is a significant effect whe
Autor:
Steward T. A. Pickett, B. S. Collins
Publikováno v:
Vegetatio. 70:3-10
Single- (33–37 m2) and multi-tree (51–151 m2) gaps were created in an Allegheny Plateau northern hard-woods forest to investigate environmental and herb layer response to canopy opening. After gap creation, noon light on clear summer days was bri
Publikováno v:
Optical and Quantum Electronics. 12:419-426
The ability to superimpose arbitrary modulation waveforms on a CW laser beam makes the acoustooptic modulator suitable for an important task: to apply modern microwave radar electronic signalprocessing and signal-generation techniques to heterodyne C