The intellectual structure and substance of the knowledge utilization field: A longitudinal author co-citation analysis, 1945 to 2004 pdf

... interpretations of citation patterns are valid. Author co-citation analysis In ACA, cited and co-cited authors are the unit of analysis [51]. As White and Griffith point out, " ;Co-citation of authors ... dec- ade in the domain of diffusion of innovations. Although White and McCain argue that the reappearance of older work may indicate the revival of a d...

Ngày tải lên: 11/08/2014, 05:21

... from aggregate author co-citation data, link oeuvres and offer a panorama of the changing intellectual structure of the field, showing the "history of the consensus as to important authors ... find a 'fading' of the diffusion paradigm. Our citation maps show that there is not a shift away from the diffusion paradigm; rather, there is a sp...

Ngày tải lên: 11/08/2014, 16:21

... understand the roles of the mid- dle domain of the eukaryotic class 1 polypeptide chain release factor in the transduction of the termination signal from the small to the large ribo- somal subunit and ... inhibition at the ribosome-binding site [32]. Together, the M and C domains of human eRF1, in the absence of the N domain, are able to bind to the...

Ngày tải lên: 07/03/2014, 05:20

Ngày tải lên: 12/12/2013, 00:15

... region of MAP2 CD2 domain (702–744 aa) in human, mouse and Gallus This supplementary material can be found in the online version of this article. Please note: As a service to our authors and readers, this ... Nihon SLC (Hamamatsu, Japan) and used in accordance with protocols approved by the Animal Care and Use Committee of RIKEN. Plasmid construction and expression Pla...

Ngày tải lên: 14/02/2014, 19:20

... bp of the respective 5¢ untranslated regions and the entire 3¢ untranslated regions. The standard polyadenylation signals (AATAAA) and the poly (A) -tails of different lengths are present in each ... (http://www.expasy.org). Cloning of S. coleoptrata hemocyanin cDNA The total RNA was extracted from a single specimen and poly (A) + RNA was purified from total RNA by th...

Ngày tải lên: 20/02/2014, 11:20

... provide the radius of gyration (R g ), defined as the root mean square distance of all atoms from their common centre of mass. The R g canbeusedtoevaluatethe overall shape of a scattering particle. The ... the conformational changes in arrestin that lead to activation are unknown. Small-angle X-ray scattering (SAXS) was used to investigate the solution structure of...

Ngày tải lên: 22/02/2014, 07:20

... the human C-domain in solution, and present data on its dynamics. On the basis of the structural data, we have performed a mutational analysis of the C-domain and investigated the impact of the ... signal of the preceding amino acid, correlating the amide HN and the Ca signals, correlating the amide HN and the Ca signal of the preceding amino acid,...

Ngày tải lên: 06/03/2014, 11:20

... Benzaldehyde lyase (BAL) catalyzes cleavage and formation of R-benzoin. BAL is known to accept several other substituted aro- matic or aliphatic acyl-acceptors as substrates for the formation of an acyloin ... For instance, they catalyse nonoxidative and oxidative de- carboxylations of 2-ketoacids, produce 2-hydroxy- ketones, and transfer activated aldehydes to a variety...

Ngày tải lên: 07/03/2014, 12:20

... of greatest dry mass increase and nutrient uptake of the plant. Each leaf and spikelet is attached to a 'node' at the base of the stem where the vascular tissues of the leaf enter the stem. ... PLANT 23 CHAPTER TWO THE STRUCTURE AND DEVELOPMENT OF THE CEREAL PLANT Growth scales are means of quantifying the growth stage of a crop in a s...

Ngày tải lên: 08/03/2014, 23:20