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while Mature Cells Efficiently Transmit both

by Macrophagetropic (m-tropic Human, Angela Granelli-piperno, Elena Delgado, Victoria Finkel, Ralph M. Steinman, Angela Granelli-piperno, Elena Delgado, Victoria Finkel, William Paxton, Ralph M. Steinman , 1997
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Relations between the statistics of natural images and the response properties of cortical cells

by David J. Field - J. Opt. Soc. Am. A , 1987
"... The relative efficiency of any particular image-coding scheme should be defined only in relation to the class of images that the code is likely to encounter. To understand the representation of images by the mammalian visual system, it might therefore be useful to consider the statistics of images f ..."
Abstract - Cited by 831 (18 self) - Add to MetaCart
relatively high signal-to-noise ratio and permits information to be transmitted with only a subset of the total number of cells. These results support Barlow's theory that the goal of natural vision is to represent the information in the natural environment with minimal redundancy.

Real-time quantification of microRNAs by stem-loop RT-PCR

by Caifu Chen, Dana A. Ridzon, Adam J. Broomer, Zhaohui Zhou, Danny H. Lee, Julie T. Nguyen, Maura Barbisin, Nan Lan Xu, Vikram R. Mahuvakar, Mark R. Andersen, Kai Qin Lao, Kenneth J. Livak, Karl J. Guegler - Nucleic Acids Res , 2005
"... A novel microRNA (miRNA) quantification method has been developed using stem–loop RT followed by TaqMan PCR analysis. Stem–loop RT primers are better than conventional ones in terms of RT efficiency and specificity. TaqMan miRNA assays are specific for mature miRNAs and discriminate among related mi ..."
Abstract - Cited by 394 (8 self) - Add to MetaCart
A novel microRNA (miRNA) quantification method has been developed using stem–loop RT followed by TaqMan PCR analysis. Stem–loop RT primers are better than conventional ones in terms of RT efficiency and specificity. TaqMan miRNA assays are specific for mature miRNAs and discriminate among related

LMO2-associated clonal T cell proliferation in two patients after gene therapy for SCID-X1

by S. Hacein-bey-abina, C. Von Kalle, M. Schmidt - Science , 2003
"... We have previously shown correction of X-linked severe combined immunodefi-ciency [SCID-X1, also known as chain (c) deficiency] in 9 out of 10 patients by retrovirus-mediated c gene transfer into autologous CD34 bone marrow cells. However, almost 3 years after gene therapy, uncontrolled exponential ..."
Abstract - Cited by 182 (5 self) - Add to MetaCart
exponential clonal proliferation of mature T cells (with or T cell receptors) has occurred in the two youngest patients. Both patients ’ clones showed retrovirus vector inte-gration in proximity to the LMO2 proto-oncogene promoter, leading to aberrant transcription and expression of LMO2. Thus, retrovirus

Expression of VEGFR-2 and AC133 by circulating human CD34(+) cells identifies a population of functional endothelial precursors

by Mario Peichev, Afzal J. Naiyer, Daniel Pereira, Zhenping Zhu, William J. Lane, Mathew Williams, Mehmet C. Oz, Daniel J. Hicklin, Larry Witte, Malcolm A. S. Moore, Shahin Rafii - Blood , 2000
"... Emerging data suggest that a subset of circulating human CD341 cells have phe-notypic features of endothelial cells. Whether these cells are sloughed mature endothelial cells or functional circulating endothelial precursors (CEPs) is not known. Using monoclonal antibodies (MoAbs) to the extracellula ..."
Abstract - Cited by 147 (5 self) - Add to MetaCart
Emerging data suggest that a subset of circulating human CD341 cells have phe-notypic features of endothelial cells. Whether these cells are sloughed mature endothelial cells or functional circulating endothelial precursors (CEPs) is not known. Using monoclonal antibodies (Mo

T cell affinity maturation by selective expansion during infection

by H. Busch, Eric G. Pamer , 1999
"... T lymphocyte recognition of infected cells is mediated by T cell receptors (TCRs) interacting with their ligands, self–major histocompatibility complex (MHC) molecules complexed with pathogen-derived peptides. Serial TCR interactions with potentially small numbers of MHC/ peptide complexes on infect ..."
Abstract - Cited by 65 (2 self) - Add to MetaCart
on infected cells transmit signals that result in T lymphocyte expansion and activation of effector functions. The impact of TCR affinity for MHC/peptide complexes on the rate or extent of in vivo T cell expansion is not known. Here we show that in vivo expansion of complex T cell populations after bacterial

Maturation stages of mouse dendritic cells in growth factor–dependent long-term cultures

by Claudia Winzler, Patrizia Rovere, Maria Rescigno, Francesca Granucci, Luciano Adorini, Valerie S. Zimmermann, Jean Davoust, Paola Ricciardi-castagnoli , 1997
"... The signals controlling the checkpoints of dendritic cells (DC) maturation and the correlation between phenotypical and functional maturational stages were investigated in a defined model system of growth factor–dependent immature mouse DC. Three sequential stages of DC maturation (immature, mature, ..."
Abstract - Cited by 86 (20 self) - Add to MetaCart
efficient and secretion of IL-12 p75 was detectable after antigen presentation. This functional DC maturation ended by apoptotic cell death, and no reversion to the immature

Pricing and Power Control in a Multicell Wireless Data Network

by Cem U. Saraydar, Narayan B. Mandayam, David J. Goodman - IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS , 2001
"... In this paper we consider distributed power control in a multicell wireless data system and study the effect of pricing transmit power. Drawing on our earlier work in [1], we formulate the QoS of a data user via a utility function measured in bits per Joule. We consider distributed power control, ..."
Abstract - Cited by 130 (4 self) - Add to MetaCart
the price) results in improving the Pareto efficiency of the resulting operating point. Variations of pricing based on global and local loading in cells are considered as a means of improving the efficiency of wireless data networks. Finally, we discuss the improvement in utilities through a centralized

Coordinated beamforming for the multi-cell multi-antenna wireless system

by Hayssam Dahrouj, Wei Yu - IEEE Trans. Wireless Commun
"... Abstract—In a conventional wireless cellular system, signal processing is performed on a per-cell basis; out-of-cell interference is treated as background noise. This paper considers the benefit of coordinating base-stations across multiple cells in a multi-antenna beamforming system, where multiple ..."
Abstract - Cited by 120 (6 self) - Add to MetaCart
-stations globally and efficiently. The proposed algorithm is based on a generalization of uplinkdownlink duality to the multi-cell setting using the Lagrangian duality theory. The algorithm also naturally leads to a distributed implementation. Simulation results show that a coordinated beamforming system can

The formation and function of extracellular enveloped vaccinia virus

by Geoffrey L. Smith, Alain V, Mansun Law - J. Gen , 2002
"... Vaccinia virus produces four different types of virion from each infected cell called intracellular mature virus (IMV), intracellular enveloped virus (IEV), cell-associated enveloped virus (CEV) and extracellular enveloped virus (EEV). These virions have different abundance, structure, location and ..."
Abstract - Cited by 101 (10 self) - Add to MetaCart
Vaccinia virus produces four different types of virion from each infected cell called intracellular mature virus (IMV), intracellular enveloped virus (IEV), cell-associated enveloped virus (CEV) and extracellular enveloped virus (EEV). These virions have different abundance, structure, location
Results 1 - 10 of 1,478