نتایج جستجو برای: about 700
تعداد نتایج: 978936 فیلتر نتایج به سال:
Transcripts from the Xenopus gene GS17 are absent from oocytes and first appear at the midblastula transition (MBT), about 8 hr after fertilization. Injection experiments with deletions of the GS17 gene and GS17-beta-globin hybrid genes show that a relatively short sequence of 74 base pairs is sufficient to activate, in cis, transcription at the MBT. This 74-base sequence is located about 700 b...
This article describes our experience in creating in one batch about 700 linked Papillon entries by transforming DiCo entries. Although this conceptually simple task seems straightforward, it has raised a number of interesting questions about the structure of the Papillon dictionary. We describe the steps of this conversion process as well as one false start, hoping that this experience will be...
In this study, commercially pure titanium/304L stainless steel explosion bonded clads have been annealed under argon atmosphere over the temperature range of 700-900°C for 1h.Microstructure of the clads have been investigated before and after anealing. X-ray diffraction studies revealed that the annealing products in the form of intermetallic phases were gradually formed at the interface of the...
We present here the use of fluorescent methodologies for structural and functional studies of RNA in place of radioactivity. The methods are highly sensitive and quantitative with the use of an infrared fluorescence imaging system. IRD-700 and IRD-800 labels are used for fluorescence detection. Chemical probing methods are largely used for mapping RNA secondary structure and to monitor ligand i...
Introduction: Since its arrival at the Saturnian system, the Cassini spacecraft has made about 100 Titan flybys. The surface of Titan has been revealed almost globally by the Cassini observations in the infrared and regionally to about 25% in radar wavelengths [1,2,3] as well as locally by the Huygens optical instruments [4]. Extended dune fields, lakes, distinct landscapes of volcanic and tect...
In this paper altitude measurement from water surface using laser beam is presented. Research data indicate that the reflection of infrared waves from water surface is about zero and it is less than 2% for visible radiations. Phase-shift and heterodyne technique was used for the measurement, and the laser beam ( mW p nm 10 , 700 = = l ) was modulated by a sine wave having a fixed frequency....
For several decades, the $\sigma/f_0(500)$ and $\kappa/K_0^*(700)$ resonances have been subject to long-standing debate. Both their existence properties were controversial until very recently. In this tutorial review we compare model-independent dispersive analytic techniques versus unitarized Chiral Perturbation Theory, when applied lightest scalar mesons $\kappa/K_0^*(700)$. Generically, form...
The primary electron donor of photosystem I (PS1), called P(700), is a heterodimer of chlorophyll (Chl) a and a'. The crystal structure of photosystem I reveals that the chlorophyll a' (P(A)) could be hydrogen-bonded to the protein via a threonine residue, while the chlorophyll a (P(B)) does not have such a hydrogen bond. To investigate the influence of this hydrogen bond on P(700), PsaA-Thr739...
this thesis is about the effect of self-confidence and educational motivation on oral translation quality.
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