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Hybrid and pureline hard winter wheat yield and stability
(Crop Science Society of America, 2004-01-01)
Pureline wheat (Triticum aestivum L.) cultivars continue to dominate production fields in the southern Great Plains despite numerous attempts to introduce hybrids during the past 28 yr. The objective of this study was to ...
Negative Subtraction Hybridization: An efficient method to isolate large numbers of condition-specific cDNAs
(BioMed Central, 2004-03-29)
Background: The construction of cDNA libraries is a useful tool to understand gene expression in organisms under different conditions, but random sequencing of unbiased cDNA collections is laborious and can give rise to ...
Part-per-million gas detection from long-baseline THz spectroscopy
(AIP Publishing, 2004-09-13)
We report a long-baseline THz time domain spectrometer based on a White cell design capable of detecting gas species in the low part-per-million range in near real time. Coherent transients from methyl chloride vapor are ...
Subluminal to superluminal propagation in a left-handed medium
(American Physical Society, 2004-03-22)
In this paper we report large group delays in the propagation of narrow-band pulses through a dispersive medium with both dielectric function and magnetic permeability negative. We show how the numerical results can be ...
Mesoscopic superposition of states with sub-Planck structures in phase space
(American Physical Society, 2004-11-11)
We propose the cavity quantum electrodynamics method, using dispersive interaction between atoms and a high-quality cavity to realize the mesoscopic superposition of coherent states that would exhibit sub-Planck structures ...
Characterization of immunodominant and potentially protective epitopes of Mannheimia haemolytica serotype 1 outer membrane lipoprotein PlpE
(American Society for Microbiology, 2004-12)
Mannheimia haemolytica serotype 1 (S1) is the most common bacterial isolate found in shipping fever pneumonia in beef cattle. Currently used vaccines against M. haemolytica do not provide complete protection against the ...
Microsphere whispering-gallery-mode laser using HgTe quantum dots
(AIP Publishing, 2004-12-20)
Ultralow-threshold continuous-wave lasing is achieved at room temperature in a fused-silica microsphere that is coated with HgTe quantum dots (colloidal nanoparticles). The 830nm pump input and HgTe microlaser output are ...
Covariation for microsatellite marker alleles associated with Rht8 and coleoptile length in winter wheat
(Crop Science Society of America, 2004-07)
Wheat (Triticum aestivum L.) cultivars with greater coleoptile elongation are preferred in low-precipitation dryland regions and in early-planted management systems of the Great Plains, but the presence of GA3 (gibberell ...
Functional cloning of Bacillus anthracis dihydrofolate reductase and confirmation of natural resistance to trimethoprim
(American Society for Microbiology, 2004-12)
Bacillus anthracis is reported to be naturally resistant to trimethoprim (TMP), a drug that inhibits dihydrofolate reductase (DHFR), a key enzyme in the folate pathway. A microdilution broth assay established that the MIC ...
Characterization of Cfa1, a monofunctional acyl carrier protein involved in the biosynthesis of the phytotoxin coronatine
(American Society for Microbiology, 2004-04)
Cfa1 was overproduced in Escherichia coli and Pseudomonas syringae, and the degree of 4'-phosphopantetheinylation was determined. The malonyl-coenzyme A:acyl carrier protein transacylase (FabD) of P. syringae was overproduced ...