to evaluate the effect of drought stress and foliar application of ascorbic acid on the growth and yield parameters of two varieties of sunflower pilot plant in the province of alborz as a split factorial in a randomized complete block design with four replications and treatments include: water stress (s) in three levels (s1) 70 mm evaporation from pan class a, (s2) 110 mm evaporation from pan ...

A novel microorganism, designated as LG12, was isolated from soil based on its ability to use acrylic acid as the sole carbon source. An electron microscopic analysis of its morphological characteristics and phylogenetic classification by 16S rRNA homology showed that the LG12 strain belongs to Rhodococcus erythropolis. R. erythropolis LG12 was able to metabolize a high concentration of acrylic...

clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles ): April 9, 2012 www.sciencemag.org (this information is current as of The following resources related to this article are availa...

Diverse sex-chromosome systems are found in vertebrates, particularly in teleost fishes, where different systems can be found in closely related species. Several mechanisms have been proposed for the rapid turnover of sex chromosomes, including the transposition of an existing sex-determination gene, the appearance of a new sex-determination gene on an autosome, and fusions between sex chromoso...

of CFTR-Dependent Fluid Secretion Michel Bagnat,* Adam Navis, Sara Herbstreith, Koroboshka Brand-Arzamendi, Silvia Curado, Sherif Gabriel, Keith Mostov, Jan Huisken, and Didier Y.R. Stainier* (Current Biology 20, 1840–1845; October 26, 2010) In the text and in Figure 3A of this article, we refer to chromosome 12/LG12. This is incorrect; chromosome 12 in the text and LG12 in Figure 3A should ref...

clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose articles or portions of articles ): February 2, 2011 www.sciencemag.org (this infomation is current as of The following resources related to this article are avai...

of Invited Paper at Science Session C03 (Beyond 3G and 4G Wireless Communication) A Study on Sub-carrier Selecting MC-CDMA (SCS-MC-CDMA) System in Broadband Wireless Communications Teruya Fujii, Noboru Izuka (contact person), Hiroyoshi Masui, and Atsushi Nagate Information and Communication Labs., Japan Telecom 2-9-1 Hatchobori, Chuo-ku, Tokyo, 104-0032, Japan TEL: +81-3-5540-8420, FAX: +81-3-5...

Landwehr, C.E. and D.M. Goldschlag. Security issues in networks with Internet access. Proceedings of the IEEE, Vol. 85, No. 12 (Dec. 1997)1034-2051. This version of the paper differs in citation formats, pagination, and other minor details from the published version. This version available from NRL Code 5540 Web site: http://www.itd.nrl.navy.mil/ITD/5540/publications Security Issues in Networks...

Four tandem subtilisin-like protease genes were found on a 6,854-bp DNA fragment cloned from the alkalophilic Bacillus sp. strain LG12. The two downstream genes (sprC and sprD) appear to be transcribed independently, while the two upstream genes (sprA and sprB) seem to be part of the same transcript.

then, under mild restrictions on Q, thc resulting feedback system is a "good" system by most classical criteria. An equally significant result is as follows [2 I. Given a feedback control law u = -k'x for the system (I), which is known to yield an asymptotically stable closed-loop system, then a ncccssary and sufficient condition for this control law to bc optimal with respcct to a performance ...