Results 71 to 80 of about 1,126,735 (301)

On the Power of Non-Adaptive Learning Graphs

, 2012
We introduce a notion of the quantum query complexity of a certificate structure. This is a formalisation of a well-known observation that many quantum query algorithms only require the knowledge of the disposition of possible certificates in the input ...
Belovs, Aleksandrs, Rosmanis, Ansis
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Impact of Sodium Layer variations on the performance of the E-ELT MCAO module

, 2014
Multi-Conjugate Adaptive Optics systems based on sodium Laser Guide Stars may exploit Natural Guide Stars to solve intrinsic limitations of artificial beacons (tip-tilt indetermination and anisoplanatism) and to mitigate the impact of the sodium layer ...
Arcidiacono, C., Diolaiti, E., Hickson, P., Holzlöhner, R., Lombini, M., Pfrommer, T., Schreiber, L.   +6 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

On Approaching the Ultimate Limits of Photon-Efficient and Bandwidth-Efficient Optical Communication

, 2011
It is well known that ideal free-space optical communication at the quantum limit can have unbounded photon information efficiency (PIE), measured in bits per photon.
Birnbaum, Kevin M., Dolinar, Sam, Erkmen, Baris I., Moision, Bruce   +3 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Large Structures and Galaxy Evolution in COSMOS at z < 1.1 [PDF]

, 2007
We present the first identification of large-scale structures (LSS) at z $< 1.1$ in the Cosmic Evolution Survey (COSMOS). The structures are identified from adaptive smoothing of galaxy counts in the pseudo-3d space ($\alpha,\delta$,z) using the COSMOS ...
A. Benson, A. Blain, A. El‐Zant, A. Finoguenov, A. Renzini, B. Mobasher, Bower R. G., Capak P., Cassata P., Cooper M. C., D. B. Sanders, D. Calzetti, D. J. Thompson, E. Schinnerer, Escalera E., G. Hasinger, Guzzo L., H. Aussel, H. J. McCracken, J. E. Taylor, J. Koda, J. Rhodes, K. Sheth, L. Guzzo, Lilly S. J., M. Giavalisco, M. Salvato, Madau P., McCracken H. J., Mo H. J., N. Scoville, O. Le Fevre, O’Hely E., P. Capak, P. L. Shopbell, R. Massey, R. S. Ellis, S. S. Sasaki, Schuecker P., Smolcic V., Taniguchi Y., van de Weygaert R., Y. Taniguchi   +42 more
core   +8 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Hierarchical Adaptive Structural SVM for Domain Adaptation [PDF]

International Journal of Computer Vision, 2016
A key topic in classification is the accuracy loss produced when the data distribution in the training (source) domain differs from that in the testing (target) domain. This is being recognized as a very relevant problem for many computer vision tasks such as image classification, object detection, and object category recognition.
Xu, Jiaolong, Ramos, Sebastian, Vazquez, David, Lopez, Antonio M.   +3 more
openaire   +2 more sources

Stochastic analysis of an error power ratio scheme applied to the affine combination of two LMS adaptive filters [PDF]

, 2011
The affine combination of two adaptive filters that simultaneously adapt on the same inputs has been actively investigated. In these structures, the filter outputs are linearly combined to yield a performance that is better than that of either filter ...
Bermudez, José Carlos Moreira, Bershad, Neil J., Tourneret, Jean-Yves   +2 more
core   +2 more sources