Davide Rossini, Tommaso Calarco, 3 Vittorio Giovannetti, Simone Montangero, 4 and Rosario Fazio 1 NEST-CNR-INFM & Scuola Normale Superiore, piazza dei Cavalieri 7, I-56126 Pisa, Italy Dipartimento di Fisica, Università di Trento and BEC-CNR-INFM, I-38050 Povo, Italy ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA Institut für Theoretische Festkörperphysik, Universit...

Escherichia coli RNase BN, a member of the RNase Z family of endoribonucleases, differs from other family members in that it also can act as an exoribonuclease in vitro. Here, we examine whether this activity of RNase BN also functions in vivo. Comparison of the x-ray structure of RNase BN with that of Bacillus subtilis RNase Z, which lacks exoribonuclease activity, revealed that RNase BN has a...

This paper specifies the formal semantics of XSLT. Using Object-Z specification language to describe each constructs of the language as objects, the stylesheet itself was specified by underlying objects. This work will contribute to the implementation of XSLT.

Escherichia coli RNase BN, a member of the RNase Z family of endoribonucleases, differs from other family members in that it also can act as an exoribonuclease in vitro. Here, we examine whether this activity of RNase BN also functions in vivo. Comparison of the X-ray structure of RNase BN with that of Bacillus subtilis RNase Z, which lacks exoribonuclease activity, revealed that RNase BN has a...

The effect of extracellular and intracellular Na 1 on the single-channel kinetics of Mg 2 1 block was studied in recombinant NR1-NR2B NMDA receptor channels. Na 1 prevents Mg 2 1 access to its blocking site by occupying two sites in the external portion of the permeation pathway. The occupancy of these sites by intracellular, but not extracellular, Na 1 is voltage-dependent. In the absence of c...

High-conductance calcium-activated potassium (Maxi-K) channels are present in smooth muscle where they regulate tone. Activation of Maxi-K channels causes smooth muscle hyperpolarization and shortening of action-potential duration, which would limit calcium entry through voltage-dependent calcium channels leading to relaxation. Although Maxi-K channels appear to indirectly mediate the relaxant ...

Channel impulse responses collected on the Virginia Tech campus show combinations of specular multipath and diffuse scattering at LMDS frequencies. An algorithm is presented that estimates link performance based on the channel impulse response. Presented and analyzed are representative impulse responses (one is primarily specular in nature and one shows significant diffuse scattering) to show t...

For 2-2 scattering in quantum field theories, the usual fixed $t$ dispersion relation exhibits only two-channel symmetry. This paper considers a crossing symmetric relation, reviving certain old ideas 1970s. Rather than this needs different variable $z$, which is related to Mandelstam invariants $s,t,u$ via parametric cubic making symmetry complex $z$ plane geometric rotation. The resulting man...

MacGregor, Gordon G., Jason Z. Xu, Carmel M. McNicholas, Gerhard Giebisch, and Steven C. Hebert. Partially active channels produced by PKA site mutation of the cloned renal K1 channel, ROMK2 (kir1.2). Am. J. Physiol. 275 (Renal Physiol. 44): F415–F422, 1998.—The activity of the cloned renal K1 channel (ROMK2) is dependent on a balance between phosphorylation and dephosphorylation. There are onl...

The single-degenerate channel for the progenitors of type Ia supernovae (SNe Ia) are currently accepted, in which a carbon-oxygen white dwarf (CO WD) accretes hydrogen-rich material from its companion, increases its mass to the Chandrasekhar mass limit, and then explodes as a SN Ia. Incorporating the prescription of Hachisu et al. (1999a) for the accretion efficiency into Eggleton’s stellar evo...