A Tale of Two Worlds: The Natural World and the Artificial World     

Trevors  J. T.  Saier Jr.  M. H. 《Water, air, and soil pollution》2007,205(1):37-38

Water, Air, & Soil Pollution -  相似文献   

Environmental Legislation: A Necessity in Preserving Our Common Biosphere?     

Trevors  J. T.  Saier  M. H. 《Water, air, and soil pollution》2007,205(1):19-20

Water, Air, & Soil Pollution -  相似文献   

AgriBusiness versus AgriCulture     

Trevors  Jack  Saier  Milton 《Water, air, and soil pollution》2007,205(1):35-36

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Effect of copper on nitrous oxide reduction in freshwater sediment     

C. A. Flemming  J. T. Trevors 《Water, air, and soil pollution》1988,40(3-4):391-397

The effect of Cu(II) sulfate on N20 reduction was studied in anaerobically incubated freshwater sediment at 15 °C. At Cu concentrations from 100 to 5000 μg g^?1, a concentration-dependent decrease in sediment pH was observed in conjunction with a decrease in N₂0 reduction in Cu²⁺ treated sediment in flask-microcosms analyzed immediately after metal addition. However, if flask-microcosms were amended with Cu²⁺ and then pre-incubated to allow the sediment pH to naturally return to its original pH (7.1), an inhibitory effect was only produced at 5000 μg Cu g^?1 sediment. Copper retention studies showed that up to 96.4% of the added Cu²⁺ (2500 μgg^?1) was retained by sediment.  相似文献   

Water,Air, and Soil Pollution     

Jack Trevors 《Water, air, and soil pollution》2010,205(1):1-1

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Gold nanoelectrodes of varied size: transition to molecule-like charging   总被引：1，自引：0，他引：1  

S Chen  RS Ingram  MJ Hostetler  JJ Pietron  RW Murray  TG Schaaff  JT Khoury  MM Alvarez  RL Whetten 《Science (New York, N.Y.)》1998,280(5372):2098-2101

A transition from metal-like double-layer capacitive charging to redox-like charging was observed in electrochemical ensemble Coulomb staircase experiments on solutions of gold nanoparticles of varied core size. The monodisperse gold nanoparticles are stabilized by short-chain alkanethiolate monolayers and have 8 to 38 kilodaltons core mass (1.1 to 1.9 nanometers in diameter). Larger cores display Coulomb staircase responses consistent with double-layer charging of metal-electrolyte interfaces, whereas smaller core nanoparticles exhibit redox chemical character, including a large central gap. The change in behavior is consistent with new near-infrared spectroscopic data showing an emerging gap between the highest occupied and lowest unoccupied orbitals of 0.4 to 0.9 electron volt.  相似文献   

Primary production of the biosphere: integrating terrestrial and oceanic components   总被引：32，自引：0，他引：32  

CB Field  MJ Behrenfeld  JT Randerson  P Falkowski 《Science (New York, N.Y.)》1998,281(5374):237-240

Integrating conceptually similar models of the growth of marine and terrestrial primary producers yielded an estimated global net primary production (NPP) of 104.9 petagrams of carbon per year, with roughly equal contributions from land and oceans. Approaches based on satellite indices of absorbed solar radiation indicate marked heterogeneity in NPP for both land and oceans, reflecting the influence of physical and ecological processes. The spatial and temporal distributions of ocean NPP are consistent with primary limitation by light, nutrients, and temperature. On land, water limitation imposes additional constraints. On land and ocean, progressive changes in NPP can result in altered carbon storage, although contrasts in mechanisms of carbon storage and rates of organic matter turnover result in a range of relations between carbon storage and changes in NPP.  相似文献   

Avian infectious bronchitis: cross-protection studies using different Australian subtypes     

LB. ENDO-MUNOZ  JT. FARAGHER † 《Australian veterinary journal》1989,66(11):345-348

The cross-immunity of vaccinated chickens after challenge with some Australian infectious bronchitis viruses was assessed by humoral antibody responses and by ciliary activity in tracheal rings of vaccinated chickens following challenge. Four viruses were used for vaccination: Vac 3, Vac 4, both current infectious bronchitis vaccine viruses, and Q1/76 and N2/62. IBV N1/62 (synonym T0 and infectious bronchitis virus N9/74 (synonym Appin) were used to challenge the vaccinated chickens. Results showed a lack of correlation between humoral antibody levels and protection. Cross-immunity was found after vaccination with each subtype, but was lower for Vac 3 and Vac 4 than for Q1/76 and N2/62.  相似文献   

Antibiotic resistant phage types of Salmonella Typhimurium in dairy cattle     

JT MACKIE  D. LIGHTFOOTy  M. ADAMSON  M. WISHART 《Australian veterinary journal》1996,73(5):194-195

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Suspected Sarcocystis encephalitis in a stillborn kid     

JT MACKIE  RS RAHALEY  R NUGENT 《Australian veterinary journal》1992,69(5):114-115

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