Academic literature on the topic 'Acknowledgment signals'

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Journal articles on the topic "Acknowledgment signals"

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O’Brien, Anne Therese. "Ethical Acknowledgment of Soil Ecosystem Integrity amid Agricultural Production in Australia." Environmental Humanities 12, no. 1 (2020): 267–84. http://dx.doi.org/10.1215/22011919-8142341.

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Abstract The growing adoption of no-till cropping and other minimal-impact farming practices in recent decades signals a shift in how soil is understood and valued. Eschewing vigorous disturbance, standard in the West (and beyond) since the Neolithic Revolution, farmers instead learn to intervene with the soil profile more sensitively. This article focuses on the concept of soil integrity and its significance for farmers’ ethical relationship to soils in everyday practice, using the case study of pasture cropping, an Australian form of agriculture that extends no-till methods to embrace ecological relationships within and beyond the soil. Prioritizing the integrity of soil ecosystems often requires reconceiving what soil is and should be. Soil can be difficult to see as ethically significant partly because it often appears as a granular bulk good, seemingly featureless and fungible. To counteract this, farmers who care for soil integrity use various heuristic and aesthetic strategies to render soil integrity more perceptible and intelligible. The author considers how a keener perception of soil integrity may enable greater attunement toward the soil condition, acknowledgement of soil distress, and thus ethical responsiveness. The article considers this through a broader discussion of phenomenological ethics.
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Böttger, A., and B. A. Spruce. "Proenkephalin is a nuclear protein responsive to growth arrest and differentiation signals." Journal of Cell Biology 130, no. 6 (1995): 1251–62. http://dx.doi.org/10.1083/jcb.130.6.1251.

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Neuropeptide precursors are traditionally viewed as molecules destined to be cleaved into bioactive peptides, which are then released from the cell to act on target cell surface receptors. In this report we demonstrate nuclear localization of the enkephalin precursor, proenkephalin, in rodent and human embryonic fibroblasts (Swiss 3T3 and MRC-5 cells) and in rodent myoblasts (C2C12 cells). Nuclear proenkephalin, detected by immunofluorescence with a panel of antiproenkephalin monoclonal antibodies, is distributed predominantly in three patterns. Selective abolition of these patterns with salt, nuclease, or methanol is associated with liberation of immunoprecipitable proenkephalin into the extraction supernatant. Proenkephalin antigenic domains, mapped using phage display libraries and synthetic peptides, are differentially revealed in the three distribution patterns. Selective epitope revelation may reflect different conformational forms of proenkephalin or its existence in complexes with other nuclear proteins, forms which therefore have different biochemical associations with the nuclear substructure. In fibroblast cell populations in transition to growth arrest, nuclear proenkephalin responds promptly to mitogen withdrawal and cell-cell contact by transient, virtually synchronous unmasking of multiple antigenic domains in a fine punctate distribution. A similar phenomenon is observed in myoblasts undergoing differentiation. The acknowledgment of growth arrest and differentiation signals by nuclear proenkephalin suggests its integration with transduction pathways mediating these signals. To begin to address the mechanism of nuclear targeting, we have transfected mutated and nonmutated proenkephalin into COS (African green monkey kidney) cells. Nonmutated proenkephalin is localized exclusively in the cytoplasm; however, proenkephalin mutated at the first ATG codon, or devoid of its signal peptide sequence, is targeted to the nucleus as well as to the cytoplasm. From this we speculate that nuclear proenkephalin arises from a primary translation product that lacks a signal peptide sequence because of initiation at a different site.
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Dieudonné, Yoann, Shlomi Dolev, Franck Petit, and Michael Segal. "Explicit Communication Among Stigmergic Robots." International Journal of Foundations of Computer Science 30, no. 02 (2019): 315–32. http://dx.doi.org/10.1142/s0129054119500072.

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In this paper, we investigate avenues for the exchange of information (explicit communication) among deaf and mute mobile robots scattered in the plane. We introduce the use of movement-signals (analogously to flight signals and bees waggle) as a mean to transfer messages, enabling the use of distributed algorithms among robots. We propose one-to-one deterministic movement protocols that implement explicit communication among semi-synchronous robots. We first show how the movements of robots can provide implicit acknowledgment in semi-synchronous systems. We use this result to design one-to-one communication among a pair of robots. Then, we propose two one-to-one communication protocols for any system of [Formula: see text] robots. The former works for robots equipped with observable IDs that agree on a common direction (sense of direction). The latter enables one-to-one communication assuming robots devoid of any observable IDs or sense of direction. All protocols (for either two or any number of robots) assume that no robot remains inactive forever. However, they cannot avoid that the robots move either away or closer to each others, by the way requiring robots with an infinite visibility. In this paper, we also present how to overcome these two disadvantages (some activity of every robot and infinite visibility). Our protocols enable the use of distributing algorithms based on message exchanges among swarms of stigmergic robots. They also allow robots to be equipped with the means of communication to tolerate faults in their communication devices.
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Zhang, Weina, Zhongjian Chen, Yichen Kang, et al. "Genome-wide analysis of lectin receptor-like kinases family from potato (Solanum tuberosum L.)." PeerJ 8 (June 10, 2020): e9310. http://dx.doi.org/10.7717/peerj.9310.

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Lectin receptor-like kinases (LecRLKs) are involved in responses to diverse environmental stresses and pathogenic microbes. A comprehensive acknowledgment of the family members in potato (Solanum tuberosum) genome is largely limited until now. In total, 113 potato LecRLKs (StLecRLKs) were first identified, including 85 G-type, 26 L-type and 2 C-type members. Based on phylogenetic analysis, StLecRLKs were sub-grouped into seven clades, including C-type, L-type, G-I, G-II, G-III G-IV and G-V. Chromosomal distribution and gene duplication analysis revealed the expansion of StLecRLKs occurred majorly through tandem duplication although the whole-genome duplication (WGD)/segmental duplication events were found. Cis-elements in the StLecRLKs promoter region responded mainly to signals of defense and stress, phytohormone, biotic or abiotic stress. Moreover, expressional investigations indicated that the family members of the clades L-type, G-I, G-IV and G-V were responsive to both bacterial and fungal infection. Based on qRT-PCR analysis, the expressions of PGSC0003DMP400055136 and PGSC0003DMP400067047 were strongly induced in all treatments by both Fusarium sulphureum (Fs) and Phytophthora infestans (Pi) inoculation. The present study provides valuable information for LecRLKs gene family in potato genome, and establishes a foundation for further research into the functional analysis.
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Rudert, Selma C., Andrew H. Hales, Rainer Greifeneder, and Kipling D. Williams. "When Silence Is Not Golden: Why Acknowledgment Matters Even When Being Excluded." Personality and Social Psychology Bulletin 43, no. 5 (2017): 678–92. http://dx.doi.org/10.1177/0146167217695554.

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Following ostracism, individuals are highly sensitive to social cues. Here we investigate whether and when minimal acknowledgment can improve need satisfaction following an ostracism experience. In four studies, participants were either ostracized during Cyberball (Studies 1 and 2) or through a novel apartment-application paradigm (Studies 3 and 4). To signal acknowledgment following ostracism, participants were either thrown a ball a few times at the end of the Cyberball game, or received a message that was either friendly, neutral, or hostile in the apartment-application paradigm. Both forms of acknowledgment increased need satisfaction, even when the acknowledgment was hostile (Study 4), emphasizing the beneficial effect of any kind of acknowledgment following ostracism. Reinclusion buffered threat immediately, whereas acknowledgment without reinclusion primarily aided recovery. Our results suggest that minimal acknowledgment such as a few ball throws or even an unfriendly message can reduce the sting of ostracism.
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Hendrickson, Wayne A. "Transduction of biochemical signals across cell membranes." Quarterly Reviews of Biophysics 38, no. 4 (2005): 321–30. http://dx.doi.org/10.1017/s0033583506004136.

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1. Introduction 3212. Tyrosine kinase receptors 3223. Histidine kinase sensors 3254. G-protein coupled receptors 3275. Principles 3286. Acknowledgments 3297. References 330Biological cells need to be responsive to various stimuli, primarily chemical ligands from their environments. Specific receptor molecules embedded in the plasma membrane detect the different biochemical signals that impact the cell, and these receptors are the conduits for transmission of this information to the cell interior for action. There are several classes of signal transduction receptors and many specific receptors within each of the major classes. This review emphasizes the structural biology of three major classes of transmembrane receptors – tyrosine kinase receptors, histidine kinase sensors, and G-protein coupled receptors. Biophysical principles that govern the processes of signal transduction across cell membranes are also discussed.
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Sophia Jasmine, G., D. Magdalin Mary, and A. Sheela. "Penmanship and signal acknowledgment utilizing inertial pen." Materials Today: Proceedings 45 (2021): 8110–14. http://dx.doi.org/10.1016/j.matpr.2021.01.677.

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Kunt, Murat. "Acknowledgment." Signal Processing 21, no. 4 (1990): 351–54. http://dx.doi.org/10.1016/0165-1684(90)90105-8.

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Kunt, Murat. "Acknowledgment." Signal Processing 25, no. 3 (1991): 391–94. http://dx.doi.org/10.1016/0165-1684(91)90123-z.

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Kunt, Murat. "Acknowledgment." Signal Processing 40, no. 2-3 (1994): 343–51. http://dx.doi.org/10.1016/0165-1684(94)90082-5.

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Dissertations / Theses on the topic "Acknowledgment signals"

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Kock, L. J. (Levina Jacoba). "The drama of Senkatana by S.M. Mofokeng : a speech act exploration." Thesis, 1997. http://hdl.handle.net/10500/17109.

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The drama of Senkatana by S.M. Mofokeng is analysed by applying principles provided by speech act theory, using as basis the explication of the theory by Bach and Harnish (1979). The socio-cultural context in the play has as its starting point the realm of myth and legend. From here all categories of relationships within the protagonist/antagonist encounter unfold, as do opposing sets of contextual beliefs characters rely on; these are primarily responsible for the growing conflict in the drama. Enhancing the mythical character of the play is the absorbing role played by the diboni, acting as seers, as prophets and as additional 'authorial voice'. Their and those of other characters' speech acts reflect this and more; they operate in a substantiated sign-system which provides a framework for evaluating each semiotic act from locutionary, illocutionary and perlocutionary dimensions of meaning. Chapter 1 comprises a historical survey of studies on speech act theory, and includes a brief summary of the position of the theory in the field of semiotics. The micro speech act analysis of the play is facilitated by the division of the text into smaller action units (summarised in Addendum 1). Chapter 2, containing the greater part of the exposition, commences the narration of the folktale and offers a clear rendering of the epic rise of the hero. Chapter 3 portrays the rise and progress of the antagonists challenging the hero, coupled with intensifying anxiety among the protagonists. Chapter 4 provides a vivid overview of how the values of the hero triumph over those of the antagonist despite the physical slaying of the hero. Chapter 5 offers a graphic outline of how the macro speech act is accomplished in the play. It is shown how an investigation of the speech act profiles of characters, coupled with the evaluation of illocutionary tactics and illocutionary/perlocutionary dynamics, communicates significant information pertaining to characterisation. A graph illustrating the rise and fall of micro speech acts within the larger macro speech act is provided in Addendum 2. Suggestions are made regarding future research in literary texts.<br>African Languages<br>D.Lit. et Phil. (African Languages)
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Nikjah, Reza. "Performance evaluation and protocol design of fixed-rate and rateless coded relaying networks." Phd thesis, 2010. http://hdl.handle.net/10048/1674.

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The importance of cooperative relaying communication in substituting for, or complementing, multiantenna systems is described, and a brief literature review is presented. Amplify-and-forward (AF) and decode-and-forward (DF) relaying are investigated and compared for a dual-hop relay channel. The optimal strategy, source and relay optimal power allocation, and maximum cooperative gain are determined for the relay channel. It is shown that while DF relaying is preferable to AF relaying for strong source-relay links, AF relaying leads to more gain for strong source-destination or relay-destination links. Superimposed and selection AF relaying are investigated for multirelay, dual-hop relaying. Selection AF relaying is shown to be globally strictly outage suboptimal. A necessary condition for the selection AF outage optimality, and an upper bound on the probability of this optimality are obtained. A near-optimal power allocation scheme is derived for superimposed AF relaying. The maximum instantaneous rates, outage probabilities, and average capacities of multirelay, dual-hop relaying schemes are obtained for superimposed, selection, and orthogonal DF relaying, each with parallel channel cooperation (PCC) or repetition-based cooperation (RC). It is observed that the PCC over RC gain can be as much as 4 dB for the outage probabilities and 8.5 dB for the average capacities. Increasing the number of relays deteriorates the capacity performance of orthogonal relaying, but improves the performances of the other schemes. The application of rateless codes to DF relaying networks is studied by investigating three single-relay protocols, one of which is new, and three novel, low complexity multirelay protocols for dual-hop networks. The maximum rate and minimum energy per bit and per symbol are derived for the single-relay protocols under a peak power and an average power constraint. The long-term average rate and energy per bit, and relay-to-source usage ratio (RSUR), a new performance measure, are evaluated for the single-relay and multirelay protocols. The new single-relay protocol is the most energy efficient single-relay scheme in most cases. All the multirelay protocols exhibit near-optimal rate performances, but are vastly different in the RSUR. Several future research directions for fixed-rate and rateless coded cooperative systems, and frameworks for comparing these systems, are suggested.<br>Communications
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Book chapters on the topic "Acknowledgment signals"

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Zhao, Danfeng, Xiangyu Song, and Guiyang Lun. "A Multi-hop Acknowledgment Technique Based on Network Coding for Underwater Acoustic Communication." In Proceedings of the 2015 International Conference on Communications, Signal Processing, and Systems. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49831-6_15.

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"Acknowledgments." In Mixed Signals. Cornell University Press, 2019. http://dx.doi.org/10.7591/9781501729904-003.

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"Acknowledgments." In Status Signals. Princeton University Press, 2010. http://dx.doi.org/10.1515/9781400837878.xiii.

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Tohyama, Mikio. "Acknowledgments." In Acoustic Signals and Hearing. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-816391-7.00008-5.

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"Acknowledgments." In Signals and Systems Using MATLAB. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-814204-2.00007-7.

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"Acknowledgments." In Signals and Systems Using MATLAB. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-12-394812-0.00019-x.

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"Acknowledgments." In Signal and Noise. Duke University Press, 2020. http://dx.doi.org/10.1515/9780822389316-001.

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"Acknowledgments." In Signal and Noise. Duke University Press, 2008. http://dx.doi.org/10.2307/j.ctv1220mnp.3.

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"Acknowledgments." In Digital Signage. Elsevier, 2008. http://dx.doi.org/10.1016/b978-0-240-81041-6.50004-5.

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Semmlow, John L. "Acknowledgments." In Circuits, Signals and Systems for Bioengineers. Elsevier, 2018. http://dx.doi.org/10.1016/b978-0-12-809395-5.04001-7.

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Conference papers on the topic "Acknowledgment signals"

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Klein, Andrew G., and D. Richard Brown. "Efficient consensus synchronization via implicit acknowledgment." In 2014 48th Asilomar Conference on Signals, Systems and Computers. IEEE, 2014. http://dx.doi.org/10.1109/acssc.2014.7094719.

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Rezaee, Arman, Linda Zeger, and Muriel Medard. "An analysis of speeding multicast by acknowledgment reduction technique (SMART) with homogeneous and heterogeneous links - a method of types approach." In 2011 45th Asilomar Conference on Signals, Systems and Computers. IEEE, 2011. http://dx.doi.org/10.1109/acssc.2011.6189947.

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Beretta, A., V. Marchis, and R. Sinatra. "Robot Task Oriented Dexterity and Dynamic Performance: A Statistical Approach." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0219.

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Abstract Robot task oriented dexterity has recently reached a well-known acknowledgment for its capability of definig robot arm manipulability figures, over the working space. Because it seemed to the authors that not yet robot dynamic performances have been taken into account in defining its local properties, it has been studied a simple 2R robot arm, in order to identify the most siutable parameters for this scope. By simulating a mathematical model forced with random input signals (forces), its dynamic behaviour has been investigated with a Monte Carlo approach. Without willing to obtain a complete modal analysis, some numerical parameters have been found as capable to identify system dynamics, e.g. the principal direction of system free oscillations, and its eigenfrequency value. Discussion of the results over the workspace and as a function of system mechanical stiffness properties is also performed.
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"Acknowledgments." In 2009 IEEE International Workshop on Machine Learning for Signal Processing (MLSP). IEEE, 2009. http://dx.doi.org/10.1109/mlsp.2009.5306273.

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"Foreword and Acknowledgments from the General Chairs." In 2016 12th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS). IEEE, 2016. http://dx.doi.org/10.1109/sitis.2016.5.

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"Foreword and Acknowledgments from the Organizing Chairs." In 2017 13th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS). IEEE, 2017. http://dx.doi.org/10.1109/sitis.2017.5.

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Ghanem, Samah A. M. "Network Coding Schemes for Time Variant/Invariant Channels with Smart Acknowledgment." In 2020 International Conference on Communications, Signal Processing, and their Applications (ICCSPA). IEEE, 2021. http://dx.doi.org/10.1109/iccspa49915.2021.9385764.

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Politis, Anastasios C., and Constantinos S. Hilas. "DL MU-MIMO with TXOP Sharing and Suppressed Acknowledgments in IEEE 802.11ac WLANs." In 2018 41st International Conference on Telecommunications and Signal Processing (TSP). IEEE, 2018. http://dx.doi.org/10.1109/tsp.2018.8441246.

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Nabeel, Muhammad, Ali Imran Najam, Yvan Duroc, and Fahad Rasool. "Multi-tone carrier technique for signal recovery from collisions in UHF RFID with multiple acknowledgments in a slot." In 2013 International Conference on Emerging Technologies (ICET). IEEE, 2013. http://dx.doi.org/10.1109/icet.2013.6743530.

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Reports on the topic "Acknowledgment signals"

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DeRobertis, Michelle, Christopher E. Ferrell, Richard W. Lee, and David Moore. City Best Practices to Improve Transit Operations and Safety. Mineta Transportation Institute, 2021. http://dx.doi.org/10.31979/mti.2021.1951.

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Public, fixed-route transit services most commonly operate on public streets. In addition, transit passengers must use sidewalks to access transit stops and stations. However, streets and sidewalks are under the jurisdiction of municipalities, not transit agencies. Various municipal policies, practices, and decisions affect transit operations, rider convenience, and passenger safety. Thus, these government entities have an important influence over the quality, safety, and convenience of transit services in their jurisdictions. This research identified municipal policies and practices that affect public transport providers’ ability to deliver transit services. They were found from a comprehensive literature review, interviews and discussions with five local transit agencies in the U.S., five public transportation experts and staff from five California cities. The city policies and practices identified fall into the following five categories: Infrastructure for buses, including bus lanes, signal treatments, curbside access; Infrastructure for pedestrians walking and bicycling to, and waiting at, transit stops and stations; Internal transportation planning policies and practices; Land development review policies; Regional and metropolitan planning organization (MPO) issues. The understanding, acknowledgment, and implementation of policies and practices identified in this report can help municipalities proactively work with local transit providers to more efficiently and effectively operate transit service and improve passenger comfort and safety on city streets.
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