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Journal articles on the topic 'Channel adaptation'

Author: Grafiati

Published: 25 May 2024

Last updated: 19 July 2025

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1

Ricci, Anthony. "Differences in Mechano-Transducer Channel Kinetics Underlie Tonotopic Distribution of Fast Adaptation in Auditory Hair Cells." Journal of Neurophysiology 87, no. 4 (2002): 1738–48. http://dx.doi.org/10.1152/jn.00574.2001.

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The first step in audition is a deflection of the sensory hair bundle that opens mechanically gated channels, depolarizing the sensory hair cells. Two mechanism of adaptation of mechano-electric transducer (MET) channels have been identified in turtle auditory hair cells. The rate of fast adaptation varies tonotopically and is postulated to underlie a mechanical tuning mechanism in turtle auditory hair cells. Fast adaptation is driven by a calcium-dependent feedback process associated with MET channels. The purpose of this paper is to test the hypothesis that fast adaptation contributes to MET

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2

Small, D. L., and C. E. Morris. "Delayed activation of single mechanosensitive channels in Lymnaea neurons." American Journal of Physiology-Cell Physiology 267, no. 2 (1994): C598—C606. http://dx.doi.org/10.1152/ajpcell.1994.267.2.c598.

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Some stretch-activated (SA) channels challenged with suction jumps exhibit adaptation, a dynamic behavior that can be overlooked because of its mechanical fragility. In previous studies of neuronal SA K channels, we detected no adaptation, but the protocols used were not designed to detect dynamics. Here, we reproduce the adaptation seen by others in Xenopus SA cationic (Cat) channels but show that, with the same protocol, no adaptation occurs with SA K channels. Instead, SA K channels exhibit a different dynamic behavior, delayed activation. Lymnaea SA K channels subjected to pressure jumps r

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Geiser, Florian, Daniel Wessel, Matthias Hummert, et al. "DRLLA: Deep Reinforcement Learning for Link Adaptation." Telecom 3, no. 4 (2022): 692–705. http://dx.doi.org/10.3390/telecom3040037.

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Link adaptation (LA) matches transmission parameters to conditions on the radio link, and therefore plays a major role in telecommunications. Improving LA is within the requirements for next-generation mobile telecommunication systems, and by refining link adaptation, a higher channel efficiency can be achieved (i.e., an increased data rate thanks to lower required bandwidth). Furthermore, by replacing traditional LA algorithms, radio transmission systems can better adapt themselves to a dynamic environment. There are several drawbacks to current state-of-the-art approaches, including predefin

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Pejoski, Slavche, and Venceslav Kafedziski. "Cross-Layer Framework for Multiuser Real Time H.264/AVC Video Encoding and Transmission over Block Fading MIMO Channels Using Outage Probability." Advances in Multimedia 2014 (2014): 1–10. http://dx.doi.org/10.1155/2014/362196.

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We present a framework for cross-layer optimized real time multiuser encoding of video using a single layer H.264/AVC and transmission over MIMO wireless channels. In the proposed cross-layer adaptation, the channel of every user is characterized by the probability density function of its channel mutual information and the performance of the H.264/AVC encoder is modeled by a rate distortion model that takes into account the channel errors. These models are used during the resource allocation of the available slots in a TDMA MIMO communication system with capacity achieving channel codes. This

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Yang, Ge, Chao Zhang, Ling Gao, Yufei Guo, and Jinyang Guo. "Domain Adaptive Channel Pruning." Electronics 13, no. 5 (2024): 887. http://dx.doi.org/10.3390/electronics13050887.

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Domain adaptation is an effective approach to improve the generalization ability of deep learning methods, which makes a deep model more stable and robust. However, these methods often suffer from a deployment problem when deep models are deployed on different types of edge devices. In this work, we propose a new channel pruning method called Domain Adaptive Channel Pruning (DACP), which is specifically designed for the unsupervised domain adaptation task, where there is considerable data distribution mismatch between the source and the target domains. We prune the channels and adjust the weig

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Wichmann, Lukas, and Mike Althaus. "Evolution of epithelial sodium channels: current concepts and hypotheses." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 319, no. 4 (2020): R387—R400. http://dx.doi.org/10.1152/ajpregu.00144.2020.

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The conquest of freshwater and terrestrial habitats was a key event during vertebrate evolution. Occupation of low-salinity and dry environments required significant osmoregulatory adaptations enabling stable ion and water homeostasis. Sodium is one of the most important ions within the extracellular liquid of vertebrates, and molecular machinery for urinary reabsorption of this electrolyte is critical for the maintenance of body osmoregulation. Key ion channels involved in the fine-tuning of sodium homeostasis in tetrapod vertebrates are epithelial sodium channels (ENaCs), which allow the sel

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Ivanov, D. V., V. A. Ivanov, N. V. Ryabova, and A. A. Kislitsyn. "Implementation of the Maximum Bandwidth Ratio of Satellite Radio Communication Systems under the Conditions for Intramodal Dispersion of Transionospheric Radio Channels." Радиотехника и электроника 68, no. 6 (2023): 571–78. http://dx.doi.org/10.31857/s0033849423060049.

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The problem of significant extension of the band of the transionospheric radio channel to the maximum possible values is solved to improve the efficiency of satellite communication systems. Hardware and software are created to suppress the group delay dispersion using methods of data mining for experimental diagnostics of a transionospheric communication line. Algorithms and tools for intelligent sensory diagnostics of wideband radio channels with adaptation to dispersion variability are developed. In the absence of adaptation, it is possible to create radio channels of undistorted transmissio

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Rich, Scott, Taufik A. Valiante, and Jérémie Lefebvre. "H- and m-channel overexpression promotes seizure-like events by impairing the ability of inhibitory neurons to process correlated inputs." PLOS Computational Biology 21, no. 6 (2025): e1013199. https://doi.org/10.1371/journal.pcbi.1013199.

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Channelopathies affecting the hyperpolarization-activated cyclic nucleotide gated (HCN or h-) channel and the Kv7 voltage gated m-type potassium (m-) channel present a paradox in epilepsy research: despite experimental evidence that both over- and underexpression of these channels can be epileptogenic, channel overexpression does not appear to increase the excitatory-inhibitory (E-I) balance as caused by channel underexpression. We here derive a viable mechanism for ictogenesis driven by h- and m-channel overexpression from analysis of an in silico spiking neuronal microcircuit exhibiting spon

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Rice, Joseph, Richard Shockley, Dale Green, John Proakis, and Milica Stojanovic. "Telesonar channel estimation and adaptation." Journal of the Acoustical Society of America 105, no. 2 (1999): 1364. http://dx.doi.org/10.1121/1.426462.

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10

Chatterjee, Shampa, Abu-Bakr Al-Mehdi, Irena Levitan, Troy Stevens, and Aron B. Fisher. "Shear stress increases expression of a KATP channel in rat and bovine pulmonary vascular endothelial cells." American Journal of Physiology-Cell Physiology 285, no. 4 (2003): C959—C967. http://dx.doi.org/10.1152/ajpcell.00511.2002.

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We have shown previously that acute ischemia leads to depolarization of pulmonary microvascular endothelial cells that is prevented with cromakalim, suggesting the presence of ATP-sensitive K+ (KATP) channels in these cells. Thus KATP channel expression and activity were evaluated in rat pulmonary microvascular endothelial cells (RPMVEC) by whole cell current measurements, dot blot (mRNA), and immunoblot (protein) for the inwardly rectifying K+ channel (KIR) 6.2 subunit and fluorescent ligand binding for the sulfonylurea receptor (SUR). Low-level expression of a KATP channel was detected in en

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11

Belyy, Vladislav, Kishore Kamaraju, Bradley Akitake, Andriy Anishkin, and Sergei Sukharev. "Adaptive behavior of bacterial mechanosensitive channels is coupled to membrane mechanics." Journal of General Physiology 135, no. 6 (2010): 641–52. http://dx.doi.org/10.1085/jgp.200910371.

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Mechanosensitive channel of small conductance (MscS), a tension-driven osmolyte release valve residing in the inner membrane of Escherichia coli, exhibits a complex adaptive behavior, whereas its functional counterpart, mechanosensitive channel of large conductance (MscL), was generally considered nonadaptive. In this study, we show that both channels exhibit similar adaptation in excised patches, a process that is completely separable from inactivation prominent only in MscS. When a membrane patch is held under constant pressure, adaptation of both channels is manifested as a reversible curre

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12

Li, Shuang, Chi Liu, Qiuxia Lin, et al. "Domain Conditioned Adaptation Network." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 07 (2020): 11386–93. http://dx.doi.org/10.1609/aaai.v34i07.6801.

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Tremendous research efforts have been made to thrive deep domain adaptation (DA) by seeking domain-invariant features. Most existing deep DA models only focus on aligning feature representations of task-specific layers across domains while integrating a totally shared convolutional architecture for source and target. However, we argue that such strongly-shared convolutional layers might be harmful for domain-specific feature learning when source and target data distribution differs to a large extent. In this paper, we relax a shared-convnets assumption made by previous DA methods and propose a

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Perry, Matthew D., Vazhaikkurichi M. Rajendran, Kenneth A. MacLennan, and Geoffrey I. Sandle. "Segmental differences in upregulated apical potassium channels in mammalian colon during potassium adaptation." American Journal of Physiology-Gastrointestinal and Liver Physiology 311, no. 5 (2016): G785—G793. http://dx.doi.org/10.1152/ajpgi.00181.2015.

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Rat proximal and distal colon are net K+secretory and net K+absorptive epithelia, respectively. Chronic dietary K+loading increases net K+secretion in the proximal colon and transforms net K+absorption to net K+secretion in the distal colon, but changes in apical K+channel expression are unclear. We evaluated expression/activity of apical K+(BK) channels in surface colonocytes in proximal and distal colon of control and K+-loaded animals using patch-clamp recording, immunohistochemistry, and Western blot analyses. In controls, BK channels were more abundant in surface colonocytes from K+secret

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Vishnu, Datta*. "RATE ADAPTATION TECHNIQUES IN WIRELESS NETWORKS (WLAN)." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 7, no. 4 (2018): 615–20. https://doi.org/10.5281/zenodo.1228656.

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The throughput of Rate adaptation in wireless networks 802.11is inclined by many parameters. Few of them are channel conditions, SNR, signal fading due to distance, Frame collisions from simultaneous transmissions and Interference from other sources etc. Among these, channel condition is most significant from the rate adaptation point of view. There are many standards for the data transmission provided by IEEE. IEEE 802.11 wireless networks (WLAN) supports multiple data transmission rates. There are many techniques and many definition of rate adaptation. The simpl

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15

HEINRICH, THOMAS STEPHAN, and MICHAEL BACH. "Contrast adaptation in retinal and cortical evoked potentials: No adaptation to low spatial frequencies." Visual Neuroscience 19, no. 5 (2002): 645–50. http://dx.doi.org/10.1017/s0952523802195095.

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Contrast adaptation occurs in both the retina and the cortex. Defining its spatial dependence is crucial for understanding its potential roles. We thus asked to what degree contrast adaptation depends on spatial frequency, including cross-adaptation. Measuring the pattern electroretinogram (PERG) and the visual evoked potential (VEP) allowed separating retinal and cortical contributions. In ten subjects we recorded simultaneous PERGs and VEPs. Test stimuli were sinusoidal gratings of 98% contrast with spatial frequencies of 0.5 or 5.0 cpd, phase reversing at 17 reversals/s. Adaptation was cont

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16

Mohd Anuar, Aliya Syahira, Wan Norsyafizan W. Muhamad, Darmawaty Mohd Ali, Suzi Seroja Sarnin, and Norfishah Ab Wahab. "A review on link adaptation techniques for energy efficiency and QoS in IEEE802.11 WLAN." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 1 (2020): 331. http://dx.doi.org/10.11591/ijeecs.v17.i1.pp331-339.

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<span>Link adaptation is a technique that able to adapt modulation and coding scheme (MCS) based on radio channel conditions. With the exponential increase on the wireless devices nowadays, it contributes to high energy consumption and an increase in carbon dioxide (CO<sub>2</sub>) emission which contribute to the environmental issue. Researchers have developed proposals to tackle these issues by design algorithms based on link adaptation technique. Nowadays, various link adaptation techniques have been proposed by researchers with target for either Quality of Service (QoS) e

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Aliya, Syahira Mohd Anuar, Norsyafizan W. Muhamad Wan, Mohd Ali Darmawaty, Seroja Sarnin Suzi, and Ab Wahab Norfishah. "A review on link adaptation techniques for energy efficiency and QoS in IEEE802.11 WLAN." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 17, no. 1 (2020): 331–39. https://doi.org/10.11591/ijeecs.v17.i2.pp331-339.

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Link adaptation is a technique that able to adapt modulation and coding scheme (MCS) based on radio channel conditions. With the exponential increase on the wireless devices nowadays, it contributes to high energy consumption and an increase in carbon dioxide (CO2) emission which contribute to the environmental issue. Researchers have developed proposals to tackle these issues by design algorithms based on link adaptation technique. Nowadays, various link adaptation techniques have been proposed by researchers with target for either Quality of Service (QoS) enhancement as well as energy effici

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18

Beurg, Maryline, Adam C. Goldring, and Robert Fettiplace. "The effects of Tmc1 Beethoven mutation on mechanotransducer channel function in cochlear hair cells." Journal of General Physiology 146, no. 3 (2015): 233–43. http://dx.doi.org/10.1085/jgp.201511458.

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Sound stimuli are converted into electrical signals via gating of mechano-electrical transducer (MT) channels in the hair cell stereociliary bundle. The molecular composition of the MT channel is still not fully established, although transmembrane channel–like protein isoform 1 (TMC1) may be one component. We found that in outer hair cells of Beethoven mice containing a M412K point mutation in TMC1, MT channels had a similar unitary conductance to that of wild-type channels but a reduced selectivity for Ca2+. The Ca2+-dependent adaptation that adjusts the operating range of the channel was als

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19

Moltchanov, D. "Cross-layer performance control of wireless channels using active local profiles." Journal of Communications Software and Systems 3, no. 3 (2007): 148. http://dx.doi.org/10.24138/jcomss.v3i3.250.

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To optimize performance of applications running over wireless channels state-of-the-art wireless access technologies incorporate a number of channel adaptation mechanisms. While these mechanisms are expected to operate jointly providing the best possible performance for current wireless channel and traffic conditions, their joint effect is often difficult to predict. To control functionality of various channel adaptation mechanisms a new cross-layer performance optimization system is sought. This system should be responsible for exchange of control informationbetween different layers and furth

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20

SALE, ABOU, ALi MADI, and Anselme WAKPONOU. "Influence of Sorghum Farmers 'Access to Communication Channels on Their Access to Climate Variability Adaptation Strategies in the Semi-Arid Zone of Cameroon." International Journal of Business Management and Technology 2, no. 5 (2023): 84–94. https://doi.org/10.5281/zenodo.7648383.

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This article addresses the problem of the performance of communication channels in influencing farmers’ perception of climate variability and their access to climate variability adaptation strategies. It aims to compare the influence of sorghum farmers' access to ICTs and interpersonal channels on their climate variability perception and their access to adaptation strategies, in order to make recommendations for improving their resilience to climate variability. The stratified random sampling method was used to select study sites, which consist of twenty (20) villages, and the sample

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21

Cheng, H., M. Fill, H. Valdivia, and W. Lederer. "Models of Ca2+ release channel adaptation." Science 267, no. 5206 (1995): 2009–10. http://dx.doi.org/10.1126/science.7701326.

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22

Sachs, F., F. Qin, and P. Palade. "Models of Ca2+ release channel adaptation." Science 267, no. 5206 (1995): 2010–11. http://dx.doi.org/10.1126/science.7701327.

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23

Travediu, Ana-Maria. "Improve channel signal quality using adaptive filters." Scientific Bulletin of Naval Academy XXIII, no. 1 (2020): 90–96. http://dx.doi.org/10.21279/1454-864x-20-i1-012.

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A channel can be modelled by trying to calculate the physical processes which modify the transmitted signal. In this article we simulated the adaptive equalization of some communication channels. A system of data transmission in the basic band will be considered in order to illustrate the principle of adaptive equalization. In such a system, the data sequence is applied, upon emission, to a formation filter( low pass filter), with the purpose of limiting the occupied bandwidth. A relatively wide band noise is also introduced on the communication channel. The transmission channel can also be mo

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Roy Antok Wibowo, Mochammad Ichdah Asyarin Hayau Lailin, and Ratnaningrum Zusyana Dewi. "Kuliner Tradisional Nusantara Sebagai Bentuk Adaptasi Budaya pada Channel Youtube Shanty di China." SABER : Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi 2, no. 4 (2024): 23–36. http://dx.doi.org/10.59841/saber.v2i4.1660.

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Traditional Nusantara culinary is a food that is a characteristic or identity of Indonesia and regions that are inherited from generation to generation, this archipelago culinary has a close relationship and is related to the people of Indonesia. Culinary has an important role for the adaptation process, if there is an Indonesian citizen who is in a domestic relationship with a foreign citizen. This research aims to find out how traditional culinary in the archipelago can support the cultural adaptation process. This research uses Eriyanto's qualitative content analysis method and uses the the

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Okamura, Yasushi, Atsuo Nishino, Yoshimichi Murata, et al. "Comprehensive analysis of the ascidian genome reveals novel insights into the molecular evolution of ion channel genes." Physiological Genomics 22, no. 3 (2005): 269–82. http://dx.doi.org/10.1152/physiolgenomics.00229.2004.

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Ion fluxes through membrane ion channels play crucial roles both in neuronal signaling and the homeostatic control of body electrolytes. Despite our knowledge about the respective ion channels, just how diversification of ion channel genes underlies adaptation of animals to the physical environment remains unknown. Here we systematically survey up to 160 putative ion channel genes in the genome of Ciona intestinalis and compare them with corresponding gene sets from the genomes of the nematode Chaenorhabditis elegans, the fruit fly Drosophila melanogaster, and the more closely related genomes

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Huang, Tingpei, Shibao Li, Xiaoxuan Lu, and Shaoshu Gao. "An Interference-Aware Rate and Channel Adaptation Scheme for Dense IEEE 802.11n Networks." Wireless Communications and Mobile Computing 2019 (April 3, 2019): 1–14. http://dx.doi.org/10.1155/2019/1902463.

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Rate adaptation, which dynamically chooses transmission rate provided at the physical layer according to the current channel conditions, is a fundamental resource management issue in IEEE 802.11 networks with the goal of maximizing the network throughput. Traditional rate adaptation algorithms for IEEE 802.11n networks do not consider the interference problem, which becomes much more serious due to the rapid deployment of IEEE 802.11n devices and large number of mobile terminals. In this paper, an interference-aware rate and channel adaptation scheme RaCA for intensive IEEE 802.11n networks wa

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Gupta, Vivek K., Ammaji Rajala, and Raju V. S. Rajala. "Insulin receptor regulates photoreceptor CNG channel activity." American Journal of Physiology-Endocrinology and Metabolism 303, no. 11 (2012): E1363—E1372. http://dx.doi.org/10.1152/ajpendo.00199.2012.

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Photoreceptor cyclic nucleotide gated (CNG) channels are critical elements in phototransduction and light adaptation. Here we report that insulin receptor (IR), an integral membrane protein, directly phosphorylates the CNGA1 subunit of CNG channels that in turn affects the function of these channels negatively. The IR phosphorylates Tyr498 and Tyr503 residues on CNGA1 that are situated at the membrane-cytoplasmic interface. The IR tyrosine kinase activity is essential for the inhibition of CNG channel. To maintain the channels in an off state, it is necessary not only to have a precise balance

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Liu, Yuanrui, Xiaoyu Zhao, and Wei Chen. "User-Perceived Capacity: Theory, Computation, and Achievable Policies." Entropy 26, no. 11 (2024): 914. http://dx.doi.org/10.3390/e26110914.

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User-perceived throughput is a novel performance metric attracting a considerable amount of recent attention because it characterizes the quality of the experience in mobile multimedia services. For instance, it gives a data rate of video streaming with which a user will not experience any lag or outage in watching video clips. However, its performance limit remains open. In this paper, we are interested in the achievable upper bound of user-perceived throughput, also referred to as the user-perceived capacity, and how to achieve it in typical wireless channels. We find that the user-perceived

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Bej, Aritra, and James B. Ames. "Retinal Cyclic Nucleotide-Gated Channel Regulation by Calmodulin." International Journal of Molecular Sciences 23, no. 22 (2022): 14143. http://dx.doi.org/10.3390/ijms232214143.

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Retinal cyclic nucleotide-gated (CNG) ion channels bind to intracellular cGMP and mediate visual phototransduction in photoreceptor rod and cone cells. Retinal rod CNG channels form hetero-tetramers comprised of three CNGA1 and one CNGB1 protein subunits. Cone CNG channels are similar tetramers consisting of three CNGA3 and one CNGB3 subunits. Calmodulin (CaM) binds to two distinct sites (CaM1: residues 565–587 and CaM2: residues 1120–1147) within the cytosolic domains of rod CNGB1. The binding of Ca2+-bound CaM to CNGB1 promotes the Ca2+-induced desensitization of CNG channels in retinal rods

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Evtushenko, Anna A., Irina P. Voronova, and Tamara V. Kozyreva. "Effect of Long-Term Adaptation to Cold and Short-Term Cooling on the Expression of the TRPM2 Ion Channel Gene in the Hypothalamus of Rats." Current Issues in Molecular Biology 45, no. 2 (2023): 1002–11. http://dx.doi.org/10.3390/cimb45020065.

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The present study is aimed to elucidate the possible involvement of the thermosensitive TRPM2 ion channel in changing of the temperature sensitivity of the hypothalamus after different cold exposures—long-term adaptation to cold and short-term cooling. Quantitative RT-PCR was used to study the expression of the gene of thermosensitive TRPM2 ion channel in the hypothalamus in the groups of control (kept for 5 weeks at +20 to +22 °C) and cold-adapted (5 weeks at +4 to +6 °C) rats, as well as in the groups of animals which were subjected to acute cooling (rapid or slow) with subsequent restoratio

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Holub, Jan, Oldřich Slavata, Pavel Souček, Odysseas Zisimopoulos, Dimitris Toumpakaris, and Stavros Kotsopoulos. "Towards Layer Adaptation for Audio Transmission." International Journal of Interdisciplinary Telecommunications and Networking 6, no. 4 (2014): 35–41. http://dx.doi.org/10.4018/ijitn.2014100104.

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When audio is transmitted over the wireless channel, the quality of the audio depends on the signal-to-noise ratio (SNR). The purpose of this paper is to investigate if rate adaptation can be avoided, and a system can rely instead on the audio encoder and decoder to alleviate the effect of channel errors. To this end, the paper reports on a set of experiments on various combinations of channel conditions, constellation sizes and audio encoding used and on the final audio quality achieved. The Mean Opinion Score (MOS) is used for performance evaluation. The MOS values are generated using the IT

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Zhang, Tianyu, Haotian Zhang, Yuqi Li, Li Li, and Dong Liu. "Few-Shot Domain Adaptation for Learned Image Compression." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 10 (2025): 10139–47. https://doi.org/10.1609/aaai.v39i10.33100.

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Learned image compression (LIC) has achieved state-of-the-art rate-distortion performance, deemed promising for next-generation image compression techniques. However, pre-trained LIC models usually suffer from significant performance degradation when applied to out-of-training-domain images, implying their poor generalization capabilities. To tackle this problem, we propose a few-shot domain adaptation method for LIC by integrating plug-and-play adapters into pre-trained models. Drawing inspiration from the analogy between latent channels and frequency components, we examine domain gaps in LIC

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Ali, Muhmmad, Ihab M. Ali Almaameri, Abdul Malik, Fahim Khan, Muhammad Khalid Rabbani, and Alamgir. "Link Adaptation Strategy for Underwater Acoustic Sensor Networks: A Machine Learning Approach." Journal of Smart Internet of Things 1, no. 1 (2023): 56–64. http://dx.doi.org/10.2478/jsiot-2023-0006.

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Abstract Due to growing concerns regarding their use in fields including oceanography, commercial marine operations, and military surveillance, demand in the exploration of underwater sensor networks for marine studies has developed. Network channels for underwater sensor network (USN) rapidly change (spatially and temporally) depending on the surroundings. To increase system efficiency by adjusting transmission parameters to channel fluctuations, it is alluring to utilize adaptive modulation and coding (AMC) for USNs. In order to determine the best link adaptation method based on the channel

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Lin, Min, Jeff T. Hatcher, Qin-Hui Chen, Robert D. Wurster, and Zixi (Jack) Cheng. "Small conductance Ca2+-activated K+ channels regulate firing properties and excitability in parasympathetic cardiac motoneurons in the nucleus ambiguus." American Journal of Physiology-Cell Physiology 299, no. 6 (2010): C1285—C1298. http://dx.doi.org/10.1152/ajpcell.00134.2010.

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Small conductance Ca2+-activated K+ channels (SK) regulate action potential (AP) firing properties and excitability in many central neurons. However, the functional roles of SK channels of parasympathetic cardiac motoneurons (PCMNs) in the nucleus ambiguus have not yet been well characterized. In this study, the tracer X-rhodamine-5 (and 6)-isothiocyanate (XRITC) was injected into the pericardial sac to retrogradely label PCMNs in FVB mice at postnatal days 7–9. Two days later, XRITC-labeled PCMNs in brain stem slices were identified. With the use of whole cell current clamp, single APs and sp

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Gong, Wei, Haoxiang Liu, Jiangchuan Liu, et al. "Channel-Aware Rate Adaptation for Backscatter Networks." IEEE/ACM Transactions on Networking 26, no. 2 (2018): 751–64. http://dx.doi.org/10.1109/tnet.2018.2802323.

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Tridenski, Sergey, and Ram Zamir. "Channel Input Adaptation via Natural Type Selection." IEEE Transactions on Information Theory 66, no. 4 (2020): 2078–90. http://dx.doi.org/10.1109/tit.2019.2941930.

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Suseendran, G., and E. Chandrasekaran. "Channel Aware MAC Protocol with Rate Adaptation for MANET." Asian Journal of Science and Applied Technology 2, no. 1 (2021): 13–19. http://dx.doi.org/10.51983/ajsat-2013.2.1.754.

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In Mobile Adhoc networks there will be a transient nature of channel conditions. Rate control is the process of switching data rates dynamically based on channel conditions. We propose a rate adaption algorithm. The channel condition information is given as the input to the Rate selection algorithm. Now with the channel condition information, each node uses the rate selection algorithm to calculate the most energy-efficient setting of PHY rates for all links in its maximum interference range.

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Lee, Hyunjee, Haseong Kim, and Hosung Park. "Novel Calibration of MIESM and Reduction of CQI Feedback for Improved Fast Link Adaptation." Electronics 8, no. 3 (2019): 278. http://dx.doi.org/10.3390/electronics8030278.

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In mobile communications systems, fast link adaptation (FLA) aims to achieve high system throughput of each user by accurately determining a channel quality indicator (CQI) for feedback, which predicts the next channel based on the current channel state information. In this paper, we propose an improved calibration method of mutual information effective signal-to noise-ratio mapping (MIESM) to determine an accurate CQI feedback value in FLA. Our proposed calibration method derives the optimal calibration factors by considering various channel environments and setting the effective interval of

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Ovchinnikov, Andrei A., and Anna A. Fominykh. "Analysis and optimization of error-correcting coding schemes for channels with Rayleigh fading." H&ES Research 15, no. 3 (2023): 47–56. http://dx.doi.org/10.36724/2409-5419-2023-15-3-47-56.

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Conventional approach to perform error-correcting decoding in channels with memory is an adoption of interleaving, which increases the receiver complexity and delay. In order to avoid these limitations, approaches for adapting an error-correcting scheme for memory channels may be used. One approach is to use error-correcting codes with modified design and decoding procedure, taking into account the presence of error bursts in the channel. Another approach to adapting the coding scheme for burst error correction is to use product codes with iterative decoding algorithms. Component codes of prod

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TOPBAŞ, Benan. "ADAPTATION OF TRADITIONAL MEDIA ORGANS IN VIDEO CONTENT: NEW MEDIA EXAMPLE: CNN TÜRK." TURKISH ONLINE JOURNAL OF DESIGN ART AND COMMUNICATION 11, no. 2 (2021): 393–402. http://dx.doi.org/10.7456/11102100/005.

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The way these main media organs are included in new media outlets, video journalism has been examined. For this purpose, content analysis of the videos produced on cnnturk.com.tr Youtube and social media platforms, which have both traditional and new media organs, was performed. An institutionalized interview was conducted to make the content analysis results more meaningful. In the research, the social media planning of online news videos was examined and what kind of content they had was revealed. Research On cnnturk.com.tr, online news videos are from the pool of CNN TÜRK channel and from

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Nahar, Raufun, Shogo Miwa, and Atsuhiko Kai. "Domain Adaptation with Augmented Data by Deep Neural Network Based Method Using Re-Recorded Speech for Automatic Speech Recognition in Real Environment." Sensors 22, no. 24 (2022): 9945. http://dx.doi.org/10.3390/s22249945.

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The most effective automatic speech recognition (ASR) approaches are based on artificial neural networks (ANN). ANNs need to be trained with an adequate amount of matched conditioned data. Therefore, performing training adaptation of an ASR model using augmented data of matched condition as the real environment gives better results for real data. Real-world speech recordings can vary in different acoustic aspects depending on the recording channels and environment such as the Long Term Evolution (LTE) channel of mobile telephones, where data are transmitted with voice over LTE (VoLTE) technolo

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Stefanovic, Mihajlo, Stefan Panic, Jelena Anastasov, Aleksandra Cvetkovic та Zoran Popovic. "Capacity evaluation for maximal ratio combining over κ-μ fading channels". Serbian Journal of Electrical Engineering 8, № 2 (2011): 221–28. http://dx.doi.org/10.2298/sjee1102221s.

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Analysis of channel capacity per unit bandwidth of L - branch maximal ratio combining (MRC) receiver operating over ?-? fading channels for two adaptive transmission schemes is presented in this paper. Using the proposed system model, the optimal power and rate adaptation and constant transmit power policies are analyzed. New expressions for capacity evaluation are derived in terms of finite sums. The effects of diversity order and fading parameters on the channel capacity for given techniques have been considered and numerically presented.

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Radaydeh, Redha M. "On Power-Efficient Low-Complexity Adaptation for D2D Resource Allocation with Interference Cancelation." Sensors 23, no. 16 (2023): 7138. http://dx.doi.org/10.3390/s23167138.

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This paper presents a detailed framework for adaptive low-complexity and power-efficient resource allocation in decentralized device-to-device (D2D) networks. The adopted system model considers that active devices can directly communicate via specified signaling channels. Each D2D receiver attempts to allocate its D2D resources by selecting a D2D transmitter and one of its spectral channels that can meet its performance target. The process is performed adaptively over successive packet durations with the objective of limiting the transmit power on D2D links while reducing the processing comple

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Karger, Amy B., Sungjo Park, Santiago Reyes, et al. "Role for SUR2A ED Domain in Allosteric Coupling within the KATP Channel Complex." Journal of General Physiology 131, no. 3 (2008): 185–96. http://dx.doi.org/10.1085/jgp.200709852.

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Allosteric regulation of heteromultimeric ATP-sensitive potassium (KATP) channels is unique among protein systems as it implies transmission of ligand-induced structural adaptation at the regulatory SUR subunit, a member of ATP-binding cassette ABCC family, to the distinct pore-forming K+ (Kir6.x) channel module. Cooperative interaction between nucleotide binding domains (NBDs) of SUR is a prerequisite for KATP channel gating, yet pathways of allosteric intersubunit communication remain uncertain. Here, we analyzed the role of the ED domain, a stretch of 15 negatively charged aspartate/glutama

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Lesage, Florian, and Jacques Barhanin. "Molecular Physiology of pH-Sensitive Background K2P Channels." Physiology 26, no. 6 (2011): 424–37. http://dx.doi.org/10.1152/physiol.00029.2011.

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Background K2P channels are tightly regulated by different stimuli including variations of external and internal pH. pH sensitivity relies on proton-sensing residues that influence channel gating and activity. Gene inactivation in the mouse is a revealing implication of K2P channels in many physiological functions ranging from hormone secretion to central respiratory adaptation. Surprisingly, only a few phenotypic traits of these mice have yet been directly related to the pH sensitivity of K2P channels.

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Frindt, Gustavo, Hao Zhou, Henry Sackin, and Lawrence G. Palmer. "Dissociation of K channel density and ROMK mRNA in rat cortical collecting tubule during K adaptation." American Journal of Physiology-Renal Physiology 274, no. 3 (1998): F525—F531. http://dx.doi.org/10.1152/ajprenal.1998.274.3.f525.

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The density of conducting K channels in the apical membrane of the rat cortical collecting tubule (CCT) is increased by a high-K diet. To see whether this involved increased abundance of mRNA coding for K channel protein, we measured the relative amounts of mRNA for ROMK, the clone of the gene thought to encode the secretory K channel in the CCT. Tubules were isolated and fixed for in situ hybridization with a probe based on the ROMK sequence. Radiolabeled probe associated with the tubule was quantified using densitometric analysis of the autoradiographic images of the tubules. The densitometr

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KOBRAVI, A., and M. SHIKH-BAHAEI. "Power and Rate Adaptation Based on Imperfect Channel Estimation over MIMO Fading Channels." IEICE Transactions on Communications E91-B, no. 4 (2008): 1063–67. http://dx.doi.org/10.1093/ietcom/e91-b.4.1063.

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Pokamestov, Dmitriy, Yakov Kryukov, Eugeniy Rogozhnikov, Islam Kanatbekuli, and Edgar Dmitriyev. "SCMA-MIMO system with adaptation to the channel state." Journal of Physics: Conference Series 2134, no. 1 (2021): 012025. http://dx.doi.org/10.1088/1742-6596/2134/1/012025.

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Abstract Sparse code multiple access (SCMA) is one of the promising implementations of non-orthogonal multiple access (NOMA) methods. SCMA provides high spectral efficiency and a large number of network resources. We describe a communication system with SCMA, space-time block coding (STBC), multiple input multiple output (MIMO) technology, and orthogonal frequency division multiplexing (OFDM). The architecture of such systems, including algorithms of formation and processing of signals is considered. A method for adapting signals to the state of the spatial channel transmission based on inform

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Xie, Man-Jiang, Yu-Guang Ma, Fang Gao, et al. "Activation of BKCa channel is associated with increased apoptosis of cerebrovascular smooth muscle cells in simulated microgravity rats." American Journal of Physiology-Cell Physiology 298, no. 6 (2010): C1489—C1500. http://dx.doi.org/10.1152/ajpcell.00474.2009.

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Cerebral arterial remodeling is one of the critical factors in the occurrence of postspaceflight orthostatic intolerance. We hypothesize that large-conductance calcium-activated K+ (BKCa) channels in vascular smooth muscle cells (VSMCs) may play an important role in regulating cerebrovascular adaptation during microgravity exposure. The aim of this work was to investigate whether activation of BKCa channels is involved in regulation of apoptotic remodeling of cerebral arteries in simulated microgravity rats. In animal studies, Sprague-Dawley rats were subjected to 1-wk hindlimb unweighting to

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Hassinen, Minna, Salla Laulaja, Vesa Paajanen, Jaakko Haverinen, and Matti Vornanen. "Thermal adaptation of the crucian carp (Carassius carassius) cardiac delayed rectifier current, IKs, by homomeric assembly of Kv7.1 subunits without MinK." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 301, no. 1 (2011): R255—R265. http://dx.doi.org/10.1152/ajpregu.00067.2011.

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Ectothermic vertebrates experience acute and chronic temperature changes which affect cardiac excitability and may threaten electrical stability of the heart. Nevertheless, ectothermic hearts function over wide range of temperatures without cardiac arrhythmias, probably due to special molecular adaptations. We examine function and molecular basis of the slow delayed rectifier K+ current ( IKs) in cardiac myocytes of a eurythermic fish ( Carassius carassius L.). IKs is an important repolarizing current that prevents excessive prolongation of cardiac action potential, but it is extremely slowly

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