Institution
Technion – Israel Institute of Technology
Education•Haifa, Israel•
About: Technion – Israel Institute of Technology is a education organization based out in Haifa, Israel. It is known for research contribution in the topics: Population & Upper and lower bounds. The organization has 31714 authors who have published 79377 publications receiving 2603976 citations. The organization is also known as: Technion Israel Institute of Technology & Ṭekhniyon, Makhon ṭekhnologi le-Yiśraʼel.
Topics: Population, Upper and lower bounds, Nonlinear system, Decoding methods, Large Hadron Collider
Papers published on a yearly basis
Papers
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TL;DR: The results suggest that on a Rayleigh channel, the standard trellis codes may not be the correct approach for improving the reliability of the communication channel.
Abstract: A suboptimal trellis coding approach based on the concept of combining a good convolutional code and bit interleavers is presented. The aim is to improve the reliability of digital radio communication over a fading channel. It is shown that over a Rayleigh channel and for a fixed code complexity the proposed system is superior to the baseline system. Its performance is analyzed using the generalized R/sub o/ and the upper bound on the bit error rate. The results suggest that on a Rayleigh channel, the standard trellis codes may not be the correct approach for improving the reliability of the communication channel. The discussion is restricted to a rate 2/3 coded system with 8-PSK modulation. >
1,074 citations
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19 Oct 1997TL;DR: Based on the quadratic residuosity assumption, a single database, computationally private information retrieval scheme with O(n/sup /spl epsiv//) communication complexity for any /spl Epsiv/>0.0 is presented.
Abstract: We establish the following, quite unexpected, result: replication of data for the computational private information retrieval problem is not necessary. More specifically, based on the quadratic residuosity assumption, we present a single database, computationally private information retrieval scheme with O(n/sup /spl epsiv//) communication complexity for any /spl epsiv/>0.
1,074 citations
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TL;DR: Research on work motivation, or the factors that energize, direct, and sustain effort across cultures, is reviewed, showing that developmentally, cross-cultural research in OB is coming of age and critical challenges for future research are highlighted.
Abstract: This article reviews research on cross-cultural organizational behavior (OB). After a brief review of the history of cross-cultural OB, we review research on work motivation, or the factors that energize, direct, and sustain effort across cultures. We next consider the relationship between the individual and the organization, and review research on culture and organizational commitment, psychological contracts, justice, citizenship behavior, and person-environment fit. Thereafter, we consider how individuals manage their interdependence in organizations, and review research on culture and negotiation and disputing, teams, and leadership, followed by research on managing across borders and expatriation. The review shows that developmentally, cross-cultural research in OB is coming of age. Yet we also highlight critical challenges for future research, including moving beyond values to explain cultural differences, attending to levels of analysis issues, incorporating social and organizational contex...
1,073 citations
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TL;DR: The purpose of this work is to clarify the relationship of SENSE and GRAPPA and to develop and evaluate an improved algorithm.
Abstract: Purpose Parallel imaging allows the reconstruction of images from undersampled multicoil data. The two main approaches are: SENSE, which explicitly uses coil sensitivities, and GRAPPA, which makes use of learned correlations in k-space. The purpose of this work is to clarify their relationship and to develop and evaluate an improved algorithm. Theory and methods A theoretical analysis shows: (1) The correlations in k-space are encoded in the null space of a calibration matrix. (2) Both approaches restrict the solution to a subspace spanned by the sensitivities. (3) The sensitivities appear as the main eigenvector of a reconstruction operator computed from the null space. The basic assumptions and the quality of the sensitivity maps are evaluated in experimental examples. The appearance of additional eigenvectors motivates an extended SENSE reconstruction with multiple maps, which is compared to existing methods. Results The existence of a null space and the high quality of the extracted sensitivities are confirmed. The extended reconstruction combines all advantages of SENSE with robustness to certain errors similar to GRAPPA. Conclusion In this article the gap between both approaches is finally bridged. A new autocalibration technique combines the benefits of both.
1,065 citations
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National Institute for Biological Standards and Control1, University of Sheffield2, Karolinska Institutet3, Technion – Israel Institute of Technology4, Leeds Teaching Hospitals NHS Trust5, Monash University6, Hebrew University of Jerusalem7, Thermo Fisher Scientific8, National Institutes of Health9, University of Cambridge10, University of Kansas11, University of Toronto12, Academy of Sciences of the Czech Republic13, Masaryk University14, Uppsala University15, Stanford University16, Newcastle University17, Pierre-and-Marie-Curie University18, WiCell19, University of Helsinki20, King's College London21, Kyoto University22, Hudson Institute23
TL;DR: The International Stem Cell Initiative characterized 59 human embryonic stem cell lines from 17 laboratories worldwide and found that despite diverse genotypes and different techniques used for derivation and maintenance, all lines exhibited similar expression patterns for several markers ofhuman embryonic stem cells.
Abstract: The International Stem Cell Initiative characterized 59 human embryonic stem cell lines from 17 laboratories worldwide. Despite diverse genotypes and different techniques used for derivation and maintenance, all lines exhibited similar expression patterns for several markers of human embryonic stem cells. They expressed the glycolipid antigens SSEA3 and SSEA4, the keratan sulfate antigens TRA-1-60, TRA-1-81, GCTM2 and GCT343, and the protein antigens CD9, Thy1 (also known as CD90), tissue- nonspecific alkaline phosphatase and class 1 HLA, as well as the strongly developmentally regulated genes NANOG, POU5F1 (formerly known as OCT4), TDGF1, DNMT3B, GABRB3 and GDF3. Nevertheless, the lines were not identical: differences in expression of several lineage markers were evident, and several imprinted genes showed generally similar allele-specific expression patterns, but some gene-dependent variation was observed. Also, some female lines expressed readily detectable levels of XIST whereas others did not. No significant contamination of the lines with mycoplasma, bacteria or cytopathic viruses was detected.
1,064 citations
Authors
Showing all 31937 results
Name | H-index | Papers | Citations |
---|---|---|---|
Robert Langer | 281 | 2324 | 326306 |
Nicholas G. Martin | 192 | 1770 | 161952 |
Tobin J. Marks | 159 | 1621 | 111604 |
Grant W. Montgomery | 157 | 926 | 108118 |
David Eisenberg | 156 | 697 | 112460 |
David J. Mooney | 156 | 695 | 94172 |
Dirk Inzé | 149 | 647 | 74468 |
Jerrold M. Olefsky | 143 | 595 | 77356 |
Joseph J.Y. Sung | 142 | 1240 | 92035 |
Deborah Estrin | 135 | 562 | 106177 |
Bruce Yabsley | 133 | 1191 | 84889 |
Jerry W. Shay | 133 | 639 | 74774 |
Richard N. Bergman | 130 | 477 | 91718 |
Shlomit Tarem | 129 | 1306 | 86919 |
Allen Mincer | 129 | 1040 | 80059 |