Flow linear dichroism studies of DNAs from Clostridium perfringens, Escherichia coli, and Micrococcus luteus are extended into the vacuum UV region to 175 nm. The short-wavelength pi pi region shows a less negative reduced linear dichroism than the well-studied long-wavelength pi pi region. These results are independent of the type of DNA and the concentration of salt over the range 0.001 to 1....

The helix geometry model of 3D braided composites has been presented, which truly reflects the braided manner and coincides with the actual configuration of the braided composites. The longitudinal tensile stress-strain relationships and the strength of 3D braided composites under the tension loading have been predicted by a finite multiphase element method (FMEM) based on the helix geometry mo...

t. ikawa obtained an ordinary differential equation for the circular helix. recently, the helix havebeen investigated by many differential geometers such as t. ikawa, h. balgetir, m. bektas, m. ergut, n.ekmekci and h. h. hacısalihoglu. in this paper, making use of this author’s methods, we obtainedcharacterizations of helix for a curve with respect to the frenet frame in 3-dimensional galilean ...

Wind turbines are typically classified as Horizontal Axis Turbines (HAWT) or Vertical (VAWT). VAWT has a superior ability to accelerate from rest rotation than HAWT, allowing it rotate the rotor even when wind speed is low; additionally, produced torque relatively high. Using Savonius helix one of numerous methods for enhancing performance. The effect number blades and blade twist angle on bott...

B. N-Terminus/C-Terminus 2253 1. N-Terminal Tail 2253 2. C-Terminal Tail 2257 C. Signal Integration Motifs 2257 1. C Helix 2258 2. Activation Loop 2258 3. F Helix 2258 D. Dynamics 2259 1. Fluorescence Anisotropy 2259 2. Molecular Dynamic Simulations 2260 III. Inhibitors of the Catalytic Subunit 2260 A. Protein Kinase Inhibitor 2260 B. Regulatory Subunits 2262 1. cAMP-Binding Domains 2263 2. Ove...

hedera helix  is widely used to treat bronchial asthma for many years. however, effects of this herb on lung histopathology is still far from clear. we aimed to determine the effect of oral administration of hedera helix on lung histopathology in a murine model of chronic asthma. balb/c  mice  were  divided  into  four  groups;   i  (placebo),  ii  (hedera  helix), iii (dexamethasone) and iv (c...

Wide-angle X-ray scattering (WAXS) from lyophilized protein is characterized by the presence of two relatively broad scattering peaks that are linked to protein structure. This work is concerned with the possibility of utilizing these peaks in the probing of the unfolding and breakdown of insulin. Native insulin is subject to thermal denaturation in the presence and in the absence of thiol cata...

We report the solution structure of the DNA binding domain of the Escherichia coli regulatory protein AraC determined in the absence of DNA. The 20 lowest energy structures, determined on the basis of 1507 unambiguous nuclear Overhauser restraints and 180 angle restraints, are well resolved with a pair wise backbone root mean square deviation of 0.7 A. The protein, free of DNA, is well folded i...