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Sp110 transcription is induced and required by Anaplasma phagocytophilumfor infection of human promyelocytic cells
(BioMed Central, 2007-09-20)
Background: The tick-borne intracellular pathogen, Anaplasma phagocytophilum (Rickettsiales: Anaplasmataceae) causes human granulocytic anaplasmosis after infection of polymorphonuclear leucocytes. The human Sp110 gene is ...
Reduced conductivity in the terahertz skin-depth layer of metals
(AIP Publishing, 2007-03-23)
The terahertz conductivities of plates of Cu and Al were measured to remain the same at 295 and 77 K using waveguide terahertz time domain spectroscopy (THz-TDS). This result was true for a variety of commercial alloys and ...
Survey of DNA motif finding algorithms
(BioMed Central, 2007-11-01)
Background: Unraveling the mechanisms that regulate gene expression is a major challenge in biology. An important task in this challenge is to identify regulatory elements, especially the binding sites in deoxyribonucleic ...
Exposure to citral, cinnamon and ruda disrupts the life cycle of a vector of Chagas disease
(Science Publications, 2007)
The main vector of Chagas disease in Venezuela was exposed to the odors of citral, cinnamon and ruda. Cinnamon was found to stop the life cycle of Rhodnius prolixus relative to untreated animals. Citral and ruda also ...
Quantum imaging with incoherent photons
(American Physical Society, 2007-09-28)
We propose a technique to obtain subwavelength resolution in quantum imaging with potentially 100% contrast using incoherent light. Our method requires neither path-entangled number states nor multiphoton absorption. The ...
Realization of quantum-mechanical weak values of observables using entangled photons
(American Physical Society, 2007-03-12)
We present a scheme for realization of quantum-mechanical weak values of observables using entangled photons produced in parametric down-conversion. We consider the case when the signal and idler modes are respectively in ...
Moment inequalities for equilibrium measures in the plane
(2007-02-15)
The equilibrium measure of a compact plane set gives the steady state distribution of charges on the conductor. We show that certain moments of this equilibrium measure, when taken about the electrostatic centroid and ...
Phylogenetic and metabolic diversity of Planctomycetes from anaerobic, sulfide- and sulfur-rich Zodletone Spring, Oklahoma
(American Society for Microbiology, 2007-08)
We investigated the phylogenetic diversity and metabolic capabilities of members of the phylum Planctomycetes in the anaerobic, sulfide-saturated sediments of a mesophilic spring (Zodletone Spring) in southwestern Oklahoma. ...
Dielectric response of soft mode in ferroelectric SrTiO3
(AIP Publishing, 2007-01-16)
The authors report far-infrared dielectric properties of powder form ferroelectric SrTiO3. Terahertz time-domain spectroscopy (TDS) measurement reveals that the low-frequency dielectric response of SrTiO3 is a consequence ...
Nonclassicality and decoherence of photon-subtracted squeezed states
(American Physical Society, 2007-03-07)
We discuss nonclassical properties of single-photon subtracted squeezed vacuum states in terms of the sub-Poissonian statistics and the negativity of the Wigner function. We derive a compact expression for the Wigner ...