Book Chapters
Science Quality and Integrity
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
Filter Total Items: 6063
Quantum chemical parameters in QSAR: what do I use when?
This chapter provides a brief overview of the numerous quantum chemical parameters that have been/are currently being used in quantitative structure activity relationships (QSAR), along with a representative bibliography. The parameters will be grouped according to their mechanistic interpretations, and representative biological and physical chemical applications will be mentioned. Parmater com
Authors
James P. Hickey
Randomization and sampling issues
The need for randomly selected routes and other sampling issues have been debated by the Amphibian electronic discussion group. Many excellent comments have been made, pro and con, but we have not reached consensus yet. This paper brings those comments together and attempts a synthesis. I hope that the resulting discussion will bring us closer to a consensus.
Authors
P.H. Geissler
Records
No abstract available.
Authors
D. H. Ellis, J.A. Taylor, C.M. Mirande, J.A. Langenberg, M. Wellington, B.H. Powell, J.L. McMillen
Regional differences in the origins of organic matter in the San Francisco Bay ecosystem: evidence from lipid biomarkers
No abstract available.
Authors
E. A. Canuel, J. E. Cloern
Reproductive physiology
Conclusions: Although the general pattern of avian physiology applies to cranes, we have identified many physiological mechanisms (e.g., effects of disturbance) that need further study. Studies with cranes are expensive compared to those done with domestic fowl because of the crane's larger size, low reproductive rate, and delayed sexual maturity. To summarize, the crane reproductive system
Authors
G.F. Gee, S.E. Russman
Resource issues addressed by case studies of sustained research in national parks
No abstract available.
Authors
Gary E. Davis, William L. Halvorson
San Francisco Bay salinity: observations, numerical simulation, and statistical models
No abstract available.
Authors
D.H. Peterson, D.R. Cayan, M. D. Dettinger, M. Noble, L.G. Riddle, L. E. Schemel, R. E. Smith, R.J. Uncles, R. Walters
Sedimentary processes in a tectonically active region: Puerto Rico north insular slope
No abstract available.
Authors
Kathryn M. Scanlon, Douglas G. Masson
Sedimentary processes in the salt deformation province of the Texas-Louisiana continental slope
No abstract available.
Authors
David C. Twichell, Catherine M. Delorey
Seismic reflection profile of the Blake Ridge near sites 994, 995, and 997
Seismic reflection profiles near Sites 994, 995, and 997 were collected with seismic sources that provide maximum resolution with adequate power to image the zone of gas hydrate stability and the region direction beneath it. The overall structure of the sediment drift deposit that constitutes the Blake Ridge consists of southwestward-dipping strata. These strata are approximately conformal to th
Authors
William P. Dillon, Deborah R. Hutchinson, Rebecca M. Drury