Results 201 to 210 of about 455,210 (249)
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Science, 2021
Chromatin DNA is packaged in the nucleus in basic structural units called nucleosomes, each consisting of a segment of DNA wound around eight histone proteins. Nucleosomes are evenly spaced along the DNA unless they are interrupted by other structural landmarks such as transcription factors.
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Chromatin DNA is packaged in the nucleus in basic structural units called nucleosomes, each consisting of a segment of DNA wound around eight histone proteins. Nucleosomes are evenly spaced along the DNA unless they are interrupted by other structural landmarks such as transcription factors.
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Measurements of subnanosecond nuclear lifetimes
Physical Review C, 1991Lifetimes of some excited nuclear levels in the subnanosecond region are determined from delayed coincidence measurements. The measured values of half-life pertain to the nuclear levels: 161 keV of {sup 133}Cs (180{plus minus}10 psec), 343 keV of {sup 175}Lu (281{plus minus}10 psec), 113 keV of {sup 177}Hf (583{plus minus}6 psec), 896 keV of {sup 168 ...
, Dey, , Sinha, , Bhattacharya, , Basu
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On the measurements of ionization in nuclear plates
Il Nuovo Cimento, 1955Using an apparatus previously described, measurements of the number of gaps\(\bar n\), total length of gaps\(\bar x\), mean gap length\(\bar w = \bar x/\bar n\), and number of « long » gaps\(\bar n_{\varepsilon ^. } \), were made on a large number of tracks. Proton, π-meson and μ-meson tracks coming to rest in the stack of pellicles (the no.
C. Castagnoli, G. Cortini, A. Manfredini
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Measurement of Cytoplasmic to Nuclear Translocation
Current Protocols in Cytometry, 2009AbstractA method is described for the quantitative assessment of the translocation of signaling molecules from the cytoplasm to the nucleus in cells. This method utilizes fluorochrome‐conjugated antibodies to the signaling molecule and a nuclear dye, and it is based on imagery acquired rapidly in flow with the use of a multispectral imaging cytometer ...
Thaddeus C, George +4 more
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SCIENTIA SINICA Physica, Mechanica & Astronomica, 2020
Mass is a fundamental property of atomic nuclei. Nuclear masses are widely used in nuclear physics and astrophysics researches as well as nuclear technique applications. Currently it is the mass spectrometry that dominates the research field of nuclear mass measurement.
YuHu ZHANG, Meng WANG, XiaoHong ZHOU
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Mass is a fundamental property of atomic nuclei. Nuclear masses are widely used in nuclear physics and astrophysics researches as well as nuclear technique applications. Currently it is the mass spectrometry that dominates the research field of nuclear mass measurement.
YuHu ZHANG, Meng WANG, XiaoHong ZHOU
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Nuclear Science and Engineering, 1962
(1962). Nuclear Radiation Measurement. Nuclear Science and Engineering: Vol. 12, No. 3, pp. 442-443.
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(1962). Nuclear Radiation Measurement. Nuclear Science and Engineering: Vol. 12, No. 3, pp. 442-443.
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