نتایج جستجو برای: ژن apx

تعداد نتایج: 17534  

1995
Luca Trevisan

In this paper we generalize the notion of polynomial-time approximation scheme preserving reducibility, called PTAS-reducibility, introduced in a previous paper. As a rst application of this generalization, we prove the APX-completeness of a polynomially bounded optimization problem, that is, an APX problem whose measure function is bounded by a polynomial in the length of the instance and such...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
J Durner D F Klessig

In recent years, it has become apparent that salicylic acid (SA) plays an important role in plant defense responses to pathogen attack. Previous studies have suggested that one of SA's mechanisms of action is the inhibition of catalase, resulting in elevated levels of H2O2, which activate defense-related genes. Here we demonstrate that SA also inhibits ascorbate peroxoidase (APX), the other key...

2000
WAN HUANG ALAN F. SVED EDWARD M. STRICKER Alan F. Sved

Huang, Wan, Alan F. Sved, and Edward M. Stricker. Vasopressin and oxytocin release evoked by NaCl loads are selectively blunted by area postrema lesions. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R732–R740, 2000.—The present study investigated the effect of area postrema lesions (APX) on stimulated neurohypophysial secretion of vasopressin (VP) and oxytocin (OT) in conscious ra...

Journal: :Theoretical Computer Science 2000

2018
Katharina Boehm Fabian P. Siegel Laila Schneidewind Jennifer Kranz Philipp Spachmann Tanja Frank Nina Huck Florian Imkamp Alexandre Pelzer

Purpose Prostate biopsy (pbx) is the most common outpatient procedure in urology. Complications are urinary tract infections, including hospitalization and sepsis. Recommendations on antibiotic prophylaxis (apx) are scarce, and healthcare data are not available. The study addressed the following endpoints: the duration and spectrum of antimicrobial prophylaxis in transrectal and transperineal p...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2000
W Huang A F Sved E M Stricker

The present study investigated the effect of area postrema lesions (APX) on stimulated neurohypophysial secretion of vasopressin (VP) and oxytocin (OT) in conscious rats. Blunted increases in plasma levels of both pituitary hormones were observed when rats with APX were infused intravenously with 1 M NaCl solution (2 ml/h for 6 h). In contrast, plasma VP and OT increased normally in rats with A...

Journal: :Inf. Process. Lett. 2009
Dieter Rautenbach Friedrich Regen

We study the problems to find a maximum packing of shortest edge-disjoint cycles in a graph of given girth g (g-ESCP) and its vertex-disjoint analogue g-VSCP. In the case g = 3, Caprara and Rizzi (2001) have shown that g-ESCP can be solved in polynomial time for graphs with maximum degree 4, but is APX-hard for graphs with maximum degree 5, while g-VSCP can be solved in polynomial time for grap...

Journal: :Development 1996
K M Mickey C C Mello M K Montgomery A Fire J R Priess

During the 4-cell stage of C. elegans embryogenesis, the P2 blastomere provides a signal that allows two initially equivalent sister blastomeres, called ABa and ABp, to adopt different fates. Preventing P2 signalling in wild-type embryos results in defects in ABp development that are similar to those caused by mutations in the glp-1 and apx-1 genes, which are homologs of the Drosophila genes No...

Journal: :Theoretical Computer Science 2006

Journal: :The Biochemical journal 1999
K Yoshimura Y Yabuta M Tamoi T Ishikawa S Shigeoka

We have previously shown that stromal and thylakoid-bound ascorbate peroxidase (APX) isoenzymes of spinach chloroplasts arise from a common pre-mRNA by alternative splicing in the C-terminus of the isoenzymes [Ishikawa, Yoshimura, Tamoi, Takeda and Shigeoka (1997) Biochem. J. 328, 795-800]. To explore the production of mature, functional mRNA encoding chloroplast APX isoenzymes, reverse transcr...

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