Human intestinal epithelial cells express functional cytokine receptors sharing the common gamma c chain of the interleukin 2 receptor.

Interleukin (IL) 2 signaling requires the dimerization of the IL-2 receptor beta (IL-2R beta) and common gamma (gamma c) chains. The gamma is also a component of the receptors for IL-4, IL-7, and IL-9. To assess the extent and role of the receptor signal transducing system utilizing the gamma c chain on human intestinal epithelial cells, the expression of gamma c, IL-2R beta, and receptor chains specific for IL-4, IL-7, and IL-9 was assessed by reverse transcription-coupled PCR on human intestinal epithelial cell lines and on isolated primary human intestinal epithelial cells. Caco-2, HT-29, and T-84 cells were found to express transcripts for the gamma c and IL-4R chains constitutively. IL-2R beta chain expression was demonstrated in Caco-2 and HT-29 but not in T-84 cells. None of the cell lines expressed mRNA for the IL-2R alpha chain. After stimulation with epidermal growth factor for 24 h Caco-2, HT-29, and T-84 cells expressed transcripts for IL-7R. In addition, Caco-2 and HT-29 cells expressed mRNA for the IL-9R. Receptors for IL-2, IL-4, IL-7, and IL-9 on intestinal epithelial cells lines appeared to be functional; stimulation with these cytokines caused rapid tyrosine phosphorylation of proteins. The relevance of the observations in intestinal epithelial cell lines for intestinal epithelial function in vivo was supported by the demonstration of transcripts for gamma c, IL-2R beta, IL-4R, IL-7R, and IL-9R in primary human intestinal epithelial cells.

Die elektrodynamischen Grundgesetze und das eigentliche Elementargesetz /

Mode of access: Internet.

Quantum electrodymanics.

Reproduced from typewritten copy.

Mathematical and physical papers,

Vol III. Elasticity, heat, electro-magnetism; IV. Hydrodynamics and general dynamics; V. Thermodynamics, cosmical and geological physics, molecular and crystalline theory, electrodynamics; VI. Voltaic theory, radioactivity, electrons, navigation and tides, miscellaneous.

Abhandlungen über elektrodynamische maassbestimmungen /

"Aus den abhandlungen bei begründung der Königlich sächsischen gesellschaft der wissenschaften, und aus den abhandlungen der mathematisch-physichen classe der Königl. sächsischen gesellschaft der wissenschaften".

[Papers : from Annalen der Physik, ser. 4, Bd. 17-19, 1905].

Made-up title.

Exposé méthodique des phénomènes électro-dynamiques, et des lois de ces phénomènes;

Mode of access: Internet.

Recueil d'observations électro-dynamiques, : contenant divers mémoires, notices, extraits de lettres ou d'ouvrages périodiques sur les sciences, relatifs a l'action mutuelle de deux courans électriques, à celle qui existe entre un courant électrique et un aimant ou le globe terrestre, et à celle de deux aimans l'un sur l'autre; /

Number 251 omitted in pagination, with unnumbered blank page between 258 and 259. Pages 382 to 385 incorrectly numbered 358, 359, 360, and 383.

Description d'un appareil électro-dynamique construit par M. Ampère.

Mode of access: Internet.

Théorie physique et mathématique des phénomènes électro-dynamiques et du magnétisme /

Errata: p. [91]-[92].

School of Nursing Class of 2007

Top Row: Alexis Adamjee, Jennifer Ahlquist, Crista Andress, Dawn Arringdale, Freda Ayensu, Genevieve Balangero, Maureen Berlucchi, Amanda Bevier, Nina Bibicoff, Rachel Black, Denise Black, Jackie Braun, Kristen Bryant, Betty Burgner, Julie Butchart, Nicholas Cameron, Jessica Carver, Christine Cha, Kelly Clement

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Multipartite entanglement and quantum state exchange

We investigate multipartite entanglement in relation to the process of quantum state exchange. In particular, we consider such entanglement for a certain pure state involving two groups of N trapped atoms. The state, which can be produced via quantum state exchange, is analogous to the steady-state intracavity state of the subthreshold optical nondegenerate parametric amplifier. We show that, first, it possesses some 2N-way entanglement. Second, we place a lower bound on the amount of such entanglement in the state using a measure called the entanglement of minimum bipartite entropy.

Bitwise bell-inequality violations for an entangled state involving 2N ions

Following on from previous work [J.-A. Larsson, Phys. Rev. A 67, 022108 (2003)], Bell inequalities based on correlations between binary digits are considered for a particular entangled state involving 2N trapped ions. These inequalities involve applying displacement operations to half of the ions and then measuring correlations between pairs of corresponding bits in the binary representations of the number of center-of-mass phonons of N particular ions. It is shown that the state violates the inequalities and thus displays nonclassical correlations. It is also demonstrated that it violates a Bell inequality when the displacements are replaced by squeezing operations.

Experimental characterization of continuous-variable entanglement

We present an experimental analysis of quadrature entanglement produced from a pair of amplitude squeezed beams. The correlation matrix of the state is characterized within a set of reasonable assumptions, and the strength of the entanglement is gauged using measures of the degree of inseparability and the degree of Einstein-Podolsky-Rosen (EPR) paradox. We introduce controlled decoherence in the form of optical loss to the entangled state, and demonstrate qualitative differences in the response of the degrees of inseparability and EPR paradox to this loss. The entanglement is represented on a photon number diagram that provides an intuitive and physically relevant description of the state. We calculate efficacy contours for several quantum information protocols on this diagram, and use them to predict the effectiveness of our entanglement in those protocols.

Demonstration of the spatial separation of the entangled quantum sidebands of an optical field

Quantum optics experiments on bright beams are based on the spectral analysis of field fluctuations and typically probe correlations between radio-frequency sideband modes. However, the extra degree of freedom represented by this dual-mode picture is generally ignored. We demonstrate the experimental operation of a device which can be used to separate the quantum sidebands of an optical field. We use this device to explicitly demonstrate the quantum entanglement between the sidebands of a squeezed beam.