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Wechsler J Greene M McDevitt MA Anastasi J Karp JE Le Beau MM Crispino JD 《Nature genetics》2002,32(1):148-152
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Zusammenfassung Die Fähigkeit zur Anreicherung von rotem Chlorphenol wird durch Stickoxydul, Methoxyfluran und Thiopental bei isolierten Fischharnkanälchen herabgesctzt, während Halothan ohne Wirkung blieb. Es wird gefolgert, dass allgemeine Betäubungsmittel den Transport organischer Säuren in benachbarten Nierenkanälchen beeinflussen.
This work was supported by the Harold C. Strong Anesthesia Research Fund. 相似文献
This work was supported by the Harold C. Strong Anesthesia Research Fund. 相似文献
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Huffman PR Brome CR Butterworth JS Coakley KJ Dewey MS Dzhosyuk SN Golub R Greene GL Habicht K Lamoreaux SK Mattoni CE McKinsey DN Wietfeldt FE Doyle JM 《Nature》2000,403(6765):62-64
Accurate measurement of the lifetime of the neutron (which is unstable to beta decay) is important for understanding the weak nuclear force and the creation of matter during the Big Bang. Previous measurements of the neutron lifetime have mainly been limited by certain systematic errors; however, these could in principle be avoided by performing measurements on neutrons stored in a magnetic trap. Neutral-particle and charged-particle traps are widely used for studying both composite and elementary particles, because they allow long interaction times and isolation of particles from perturbing environments. Here we report the magnetic trapping of neutrons. The trapping region is filled with superfluid 4He, which is used to load neutrons into the trap and as a scintillator to detect their decay. Neutrons in the trap have a lifetime of 750(+330)(-200) seconds, mainly limited by their beta decay rather than trap losses. Our experiment verifies theoretical predictions regarding the loading process and magnetic trapping of neutrons. Further refinement of this method should lead to improved precision in the neutron lifetime measurement. 相似文献