THE TRAINING OF INDUSTRIAL CHEMISTS     

Palmer CS 《Science (New York, N.Y.)》1908,28(725):725-727

  相似文献   

Ecology. Ecology for a crowded planet     

Palmer M  Bernhardt E  Chornesky E  Collins S  Dobson A  Duke C  Gold B  Jacobson R  Kingsland S  Kranz R  Mappin M  Martinez ML  Micheli F  Morse J  Pace M  Pascual M  Palumbi S  Reichman OJ  Simons A  Townsend A  Turner M 《Science (New York, N.Y.)》2004,304(5675):1251-1252

  相似文献   

Soil quality and financial performance of biodynamic and conventional farms in new zealand   总被引：3，自引：0，他引：3  

Reganold JP  Palmer AS  Lockhart JC  Macgregor AN 《Science (New York, N.Y.)》1993,260(5106):344-349

Biodynamic farming practices and systems show promise in mitigating some of the detrimental effects of chemical-dependent, conventional agriculture on the environment. The physical, biological, and chemical soil properties and economic profitability of adjacent, commercial biodynamic and conventional farms (16 total) in New Zealand were compared. The biodynamic farms in the study had better soil quality than the neighboring conventional farms and were just as financially viable on a per hectare basis.  相似文献   

Mathematics and biology. A bright future for biologists and mathematicians?     

Hastings A  Palmer MA 《Science (New York, N.Y.)》2003,299(5615):2003-2004

  相似文献   

Ice core evidence for Antarctic sea ice decline since the 1950s     

Curran MA  van Ommen TD  Morgan VI  Phillips KL  Palmer AS 《Science (New York, N.Y.)》2003,302(5648):1203-1206

The instrumental record of Antarctic sea ice in recent decades does not reveal a clear signature of warming despite observational evidence from coastal Antarctica. Here we report a significant correlation (P < 0.002) between methanesulphonic acid (MSA) concentrations from a Law Dome ice core and 22 years of satellite-derived sea ice extent (SIE) for the 80 degrees E to 140 degrees E sector. Applying this instrumental calibration to longer term MSA data (1841 to 1995 A.D.) suggests that there has been a 20% decline in SIE since about 1950. The decline is not uniform, showing large cyclical variations, with periods of about 11 years, that confuse trend detection over the relatively short satellite era.  相似文献   

Copper porphyrins in deep-sea sediments: a possible indicator of oxidized terrestrial organic matter     

Palmer SE  Baker EW 《Science (New York, N.Y.)》1978,201(4350):49-51

Copper porphyrins have been isolated from deep-sea sediments collected during six legs of the Deep Sea Drilling Project-International Program of Ocean Drilling. These pigments are present in depositional areas receiving high inputs of terrestrially derived oxidized organic matter. Such areas include the Black Sea, the Bay of Biscay, the Blake-Bahama Basin, and slumped Miocene deposits off Cape Bojador on the west coast of Africa.  相似文献   

Microcolonial fungi: common inhabitants on desert rocks?     

Staley JT  Palmer F  Adams JB 《Science (New York, N.Y.)》1982,215(4536):1093-1095

Microcolonial structures have been harvested from desert rock samples for cultivation and ultrastructural examination. The results indicate that these microcolonial structures are fungi previously unrecognized as inhabitants of desert rocks.  相似文献   

Occurrence of 1-Quinic Acid in Tobacco Leaves     

Palmer JK 《Science (New York, N.Y.)》1957,126(3272):504-505

  相似文献   

Ecology. Synthesizing U.S. river restoration efforts     

Bernhardt ES  Palmer MA  Allan JD  Alexander G  Barnas K  Brooks S  Carr J  Clayton S  Dahm C  Follstad-Shah J  Galat D  Gloss S  Goodwin P  Hart D  Hassett B  Jenkinson R  Katz S  Kondolf GM  Lake PS  Lave R  Meyer JL  O'donnell TK  Pagano L  Powell B  Sudduth E 《Science (New York, N.Y.)》2005,308(5722):636-637

  相似文献   

Comment on "The evolution of modern eukaryotic phytoplankton"     

Keeling PJ  Archibald JM  Fast NM  Palmer JD 《Science (New York, N.Y.)》2004,306(5705):2191; author reply 2191

  相似文献