15.The weight of the neutron is about the same as a proton, but it has no electrical charge.中子的重量和质子差不多相等,但中子不带电荷。 16.The electron, for example, has negative charge, whilst its antiparticle, called the positron, has positive charge.举例说明,比如电子带负电荷,同时,它...
We present an updated measurement of the B s lifetime using the semileptonic decays B s → D s μνX, with D s →Φπ and Φ→ KK (and the charge conjugate process). This measurement uses the full Tevatron Run II sample of proton-antiproton collisions at √s = 1.96 TeV, comprising...
packing, and vesicle endocytosis; namely, vesicle associated membrane protein (Vamp), syntaxin (Stx1a), clathrin light chain A (CltA), clathrin interacting protein (Clint1), N-ethylmaleimide sensitive fusion protein (NSF), dynamin (Dnm2), and V-type proton ATPase subunit C 1 (V-ATPase) (Fi...
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This measurement uses the full Tevatron Run II sample of proton-antiproton collisions at $\\\sqrt{s} = 1.96$~TeV, comprising an integrated luminosity of 10.4~fb$^{-1}$. We find a flavor-specific lifetime $au_{\\\mathrm{fs}}(B_s^0)=1.479\\\pm0.010hinspace{m(stat)}\\\pm0.021hi...
These include (1) direct killing of tumor cells (2) destruction of tumor-associated vasculature and (3) stimulation of anti-tumor immune response. While all three processes have been implicated in the overall outcome of PDT effect, the relative contribution of each proce...
Green fluorescent protein (GFP) is amenable to recombinant expression in various kinds of cells and is widely used in life science research. We found that the recombinant expression of GFPuv, a commonly-used mutant of GFP, in E. coli produced two distinc
3C), such as similar residues chelating divalent ions (His321, Asp323, and His400 in JMJD5) and rich negatively charged sidechains as proton acceptor (Asp323 and imidic-Gln275 in JMJD5) within the catalytic center of JMJD5 (Fig. 2B, Fig. 3C)34. We found that methylated arginines ...
Proton NMR spectra of the fresh DOX-loaded micelle solutions in D2O were recorded with no recognizable free DOX signals detected, indicating the completion of drug encapsulation (data not shown). The DOX-loaded G2 and G3 micelle solutions at 20% drug content maintained stable particle size and...
The inventors surprisingly found that neural stimulation caused the synthesis and degradation of proteins into peptides which were then secreted into the cell media within minutes of stimulation by a novel neural-specific and membrane bound proteasome (neuronal membrane proteasome or NMP) that is transm...