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244篇 您的检索式:作者名="Lake D"
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1Preliminary discussion of low-salinity hydrothermal fluid mineralization显示文摘REVIEWING the history of the geology of mineral deposits, we may find that in the first fifty years of thetwentieth century the magmatic-hydrothermal theory of ore deposition was the most prevalent, whichgave impetus to the development of the geology of mineral deposits. In the 1960s, the drilling of theSalton Sea geothermal field, California, the United States, and discovery and study of the Red Sea seafloor hot brines and large amounts of metal sulfides removed therefrom led to the rise of the brine theory ofmineral deposition, thus elucidating the origin of massive metal sulfides and promoted the discoveryand exploration of metal deposits. After the 1970s and the 1980s, through a study of the hydrothermal ore fluids of modern hotsprings. geologists came to realize that there exist low-salinity hydrothermal ore fluids other thanZHENG Mianping R & D Center of Saline Lake and Epithermal Deposits, Chinese Academy of Geological Sciences, Beijing 100037, China 1999Chinese Science Bulletin1999,44,S2:5
2The effects of K^+ growth conditions on the accumulation of cesium by the bacterium Thermus sp. TibetanG6显示文摘The accumulation of cesium by the bacterium Thermus sp. TibetanG6 was examined under different K+ growth conditions. The effects of external pH and Na+ on the accumulation of ce-sium were also studied, and the mechanism involved was discussed. K+ regimes played an important role in the accumulation of cesium by the strain TibetanG6. The quantity of cesium accumulated (24 h) was much higher in K+-deficient regime than that in K+-sufficient regime. The pH and Na+ had different effects on the accumulation of cesium in the two K+ regimes. IR spectra analyses indicated that the biosorption is a process of homeostasis with cesium initially accumulated on the cell wall.WANG Hailei1,2,3, KONG Fanjing1,2,3 & ZHENG Mianping1,2,3 1. R&D Center for Saline Lake and Epithermal Deposits, Chinese Academy of Geological Sciences, Beijing 100037, China 2. Key Open Laboratory of Saline Lake Resources and Environment, Chinese Academy of Geological Sciences, Beijing 100037, China 3. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China 2006Science China(Life Sciences)2006,49,2:3
3Cesium accumulation by bacterium Thermus sp. TibetanG7:hints for biomineralization of cesium-bearing geyserite in hot springs in Tibet,China显示文摘The bacterium Thermus sp. TibetanG7, isolated from hot springs in Tibet, China, was examined for the ability to accumulate cesium from solutions. Environmental conditions were simulated and the effects of pH, K+, Na+ and K+-regimes were then studied to determine the possible role of the bacterium in the formation of cesium-bearing geyserite around these hot springs. In despite of the inhibition of K+ and Na+, the bacterium Thermus sp. TibetanG7 revealed noticeable accumulation of cesium from solutions, with maximum accumulations of 53.49 and 40.41 μmol Cesium/g cell dry weight in Na+ and K+ inhibition experiments, respectively. The accumulation of cesium by this microorganism is rapid, with 40%―50% accumulated within the first 5 min. K+-deficient cells showed a much higher capacity of cesium accu- mulation compared with K+-sufficient cells. It is evident that the bacteria within the genus thermus play a significant role in the cesium assembly. The formation of cesium-bearing geyserite is also considered.WANG HaiLei1,2,3, ZHENG MianPing1,2,3 & HUANG XiaoXing4 1 Institute of Mineral Resources, Chinese Academy of Geological Sciences (CAGS), Beijing 100037, China 2 R&D Center for Saline Lake and Epithermal Deposits, CAGS, Beijing 100037, China 3 Open Laboratory of Saline Lake Resourses and Environment, CAGS, Beijing 100037, China 4 Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100081, China 2007Chinese Science Bulletin2007,52,19:2
4Cross-presentation of tumor antigens : Evaluation of threshold, duration,distribution and regulation 显示文摘Robinson BW Lake RA Nelson D J 1999Immunol Cell Biol1999,77,:1
5Effects of posting examinations and answer keys on students' study methods and test performance显示文摘Lake E Chambers D W 2009J Dent Educ2009,73,5:1
6Formation of microvias in epoxy-glass composites by laser ablation显示文摘PARGELLIS A N AU D LAKE T V 1990Optics and Laser Technology1990,22,3:1
7Metabolic flux analysis in mammalian cell culture 显示文摘Lake E Q Stefanie D Jens 0 K 2010Metab Eng2010,12,:1
8Understanding clinical expertise:nurse education,experience, and the hospital context 显示文摘McHugh M D Lake E T 2010Res Nurs Herlth2010,33,4:1
9Association between hospital recognition for nursing excellence and outcomes of very low - birth - weight infants显示文摘Lake ET Staiger D Horbar J 2012JAMA2012,307,16:1
10Isotope fractionation and atmospheric oxygen: Implications for phan- erozoic 02 evolution显示文摘Berner R A Petsch S T Lake J A Beerling D J 2000Science2000,287,:1
11Handedness and sex differences in hemis- pheric asymmetry显示文摘Lake D A Bryden M P 1976Brain and Language1976,3,2:1
12Confirmation of psaA inall 90 serotypes of Streptococcus pneumonia by PCR and potentialof this assay for identification and diagnosis 显示文摘Morrison KE Lake D CrookJ 2000J Clin Microbiol2000,38,1:1
13Development of a passively deployed roll-out solar array显示文摘Barret R Campbell D Lake M S 2006AIAA Journal2006,4011,:1
14NOTCH signaling: cell fate control and signal integration in development显示文摘Artavanis Tsakonas S Rand M D Lake R J 1999Science1999,284,5415:1
15Molecular structure and dimeric organization of the Notch extracellular domain as re- vealed by electron microscopy 显示文摘Kelly D F Lake R J Middelkoop T C 2010PLoS One2010,5,10:1
16Rapid least-squares inversion of apparent resistivity pseudosections by Newton method 显示文摘Lake M H Barke R D 1996Geophysical Prospecting1996,44,:1
17Sudden hemorrhage in meta- static thyroid carcinoma of the brain during treatment with iodine-131 显示文摘Holmquest D L Lake P 1976J Nucl Med1976,17,4:1
18Parenting Intervention to Reduce Attention and Behavior Difficulties in Preschoolers: A CUIDAR Evaluation Study显示文摘Lakes KD Vargas D Riggs M 2011J Child Fam Stud2011,20,5:1
19Notch signaling: cell fate control and signal integration in development 显示文摘ARTAVANIS-TSAKONAS S RAND M D LAKE R J 1999Science1999,284,5415:1
20Plant development Signals From mature to new leaves 显示文摘Lake J A Quick W P Beerling D J 2001Nature2001,411,:1
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