the signal in the noise
Constructive role of internal noise for the detection of weak signal in cell system
Ngày tải lên :
02/09/2015, 13:20
... that, in response to a weak signal, a resonance among the noise, the noise- induced oscillation, and the signal can intensively enhance the ability of the system in detection of the weak signal, ... point, instead of trying to resist the internal molecular noise, living cell systems may have learned to exploit the internal noise to intensively enhance the ability to detect weak signals The ... resonance” Therefore, a basic question is: will the internal noise influence the signal detection in small systems? In the present article, via the inositol 1,4,5-trisphosphatecalcium cross-coupling...
- 4
- 285
- 0
Visions in marketing finding the signal through the noise
Ngày tải lên :
04/12/2015, 00:20
... Visions in marketing: Expanding the role of marketing within the company, as well as outside at TD Bank Visions in marketing: Freescale Semiconductor is marketing across the supply chain Dominic ... customer insights Marketing’s remit is expanding beyond traditional lines, interweaving internally with other company functions and externally with a wider variety of customer touch-points Visions in ... Visions in marketing: Introduction Visions in marketing: Multiple new channels are changing the customer experience in the B2B space Freescale Semiconductor is competing online through user experience...
- 19
- 192
- 0
Báo cáo khoa học: A di-leucine sorting signal in ZIP1 (SLC39A1) mediates endocytosis of the protein doc
Ngày tải lên :
16/03/2014, 11:20
... sorting signals contained within cytosolic domains of the proteins [34] Therefore, we hypothesized that a sorting signal( s) in the cytosolic domains of ZIP1 may serve as a signal for the internalization ... [6,14,24,25,33] However, the sorting signals for the intracellular protein trafficking carrying in these transporter proteins are not clear The present study aimed to identify a sorting signal( s) in ZIP1 that ... after h of incubation (Fig 5H), indicating that the endocytic machinery in these mutant ZIP1-Myc expressing cells was intact Taken together, these results suggest that the reduction in the internalization...
- 12
- 374
- 0
Báo cáo Y học: Importin a binds to an unusual bipartite nuclear localization signal in the heterogeneous ribonucleoprotein type I pptx
Ngày tải lên :
18/03/2014, 01:20
... and the binding is diminished or eliminated even if only one of the two basic stretches are mutated The affinity of the importintargeting sequence interaction is a critical parameter in determining ... in the 30-amino-acid spacer sequence In the present work, we have characterized the NLD domain present in the neural counterpart of hnRNPI/PTB and investigated whether the hnRNPI/PTB import involves ... for the bipartite NLS of nucleoplasmin [7] Taken together, these results indicate that the identified NLS motif is a bona fide nuclear import signal for PTB like proteins The NLS contained in the...
- 8
- 1.1K
- 0
Báo cáo khoa học: Detergent-resistant membrane fractions contribute to the total 1 H NMR-visible lipid signal in cell potx
Ngày tải lên :
23/03/2014, 17:21
... from the acyl chains of PtdCho or sphingomyelin; however, neither the choline headgroups of PtdCho and sphingomyelin (except for a small peak in THP-1) nor the sphingosine chain of sphingomyelin ... were present, therefore either an increase in the amount of DRMs present, or in the amount of lipid in the DRMs from the stimulated cells may explain their more intense lipid spectra The fact that ... crosslinking leads to an increased partitioning of TCR subunits and their associated signalling molecules into DRMs implicating their central role as a focal point for T cell activation Interestingly,...
- 10
- 394
- 0
Báo cáo khoa học: Annexin A2 binds to the localization signal in the 3¢ untranslated region of c-myc mRNA ppt
Ngày tải lên :
30/03/2014, 15:20
... full binding activity The proteins binding to this region of the c-myc 3¢UTR were further investigated by UV cross-linking of RNA–protein complexes followed by SDS ⁄ PAGE As shown in Fig 2A, the ... proteins, including a 36 kDa protein (arrow), in the cytoskeletal fraction 11) Again these data support the view that complex formation is due to binding of a protein to the 3¢UTR implicated in ... mRNA the localization signal lies in an 86-nucleotide region within the 3¢UTR and is abrogated by a mutation in a conserved AUUUA [11] The RNA-binding protein(s) involved in this retention of the...
- 9
- 232
- 0
the signal and the noise why most predi nate silver
Ngày tải lên :
22/07/2014, 21:25
... rate of growth during the 2000s This meant that the number of homeowners increased by about 80 percent during the decade—meeting or exceeding the increase in housing prices In the 2000s, by contrast, ... on the dollar When you layer the large uncertainty intrinsic to measuring the effects of stimulus atop the large uncertainty intrinsic to making macroeconomic forecasts of any kind, you have the ... represent the majority of their ratings business during the bubble years.29 These products helped Moody’s to the highest profit margin of any company in the S&P 500 for five consecutive years during the...
- 545
- 396
- 0
Báo cáo lâm nghiệp: "Climatic signal in annual growth variation of silver fir (Abies alba Mill.) and spruce (Picea abies Karst.) from the French Permanent Plot Network (RENECOFOR)" ppsx
Ngày tải lên :
07/08/2014, 16:21
... drought in summer lead to narrow rings in Picea stands The effects of the weather conditions for the other months are less frequent and significant The response functions obtained for total ring series ... stands in the French Jura and in Switzerland [10, 39], in the Vosges Mountains [3, 4], in the French and Italian Alps [19, 22, 43], in Belgium Ardenne [37], in Czech Republic [44] and in Germany ... during the winter period could play a positive role in improving carbohydrate storage and growth of the following year Warming in winter could also decrease embolism [33], advance leaf unfolding...
- 11
- 328
- 0
Báo cáo y học: " Presence of a functional but dispensable Nuclear Export Signal in the HTLV-2 Tax protein" pdf
Ngày tải lên :
13/08/2014, 09:21
... Importin α binds to NLS containing proteins, whereupon importin β is responsible for the docking of the importin cargo complex to the cytoplasmic side of the NPC, followed by translocation of the ... chromosome region maintenance (CRM1) receptor, exporting proteins containing a nuclear export signal (NES) [25] CRM1 binds to a Nuclear Export Signal (NES)-containing protein and to the NPC Several ... further confirmed in another laboratory [35] which also demonstrated that the NLS domain was confined to the 40 first N-terminal amino acids We also demonstrated that the region spanning amino...
- 11
- 242
- 0
báo cáo hóa học: " Robustness of digitally modulated signal features against variation in HF noise model" pdf
Ngày tải lên :
21/06/2014, 02:20
... (MDM) in constellation diagram and evaluate their robustness against the change in noise model Note that the contribution of this article is pertaining to the features extraction stage; hence the ... algorithms proposed in [19] The work shows that the change in noise model affects the classification performance, especially at low signal- tonoise ratio (SNR) Therefore, the robustness of commonly ... and k The figure shows that decreasing the shaping parameter produces a shaper peak and that the bi-kappa distribution approaches the AWG distribution when the tuning parameter is increased In this...
- 12
- 262
- 0
Báo cáo hóa học: " Research Article Tracking Signal Subspace Invariance for Blind Separation and Classification of Nonorthogonal Sources in Correlated Noise" ppt
Ngày tải lên :
22/06/2014, 23:20
... coefficients in a certain node indicate the presence of the corresponding basis in the signal and measure its contribution Equivalently, they evaluate the content of the signal inside the related ... to their original linear indexing in the binary tree yields the sets JA = {0, 1, 3, 7, 15, 16} and JB = {4, 8, 10, 17, 18, 21} Examining the tree structure in Figure 9(f) illustrates that the ... stronger in these nodes such that the dominant eigenvector points in the direction of this component These are eventually discarded from the set J1 Due to the sparsity introduced by the DWPT, the...
- 20
- 366
- 0
Báo cáo hóa học: " Impulsive Noise Suppression from Images with the Noise Exclusive Filter" docx
Ngày tải lên :
23/06/2014, 01:20
... the intensity values of the uncorrupted pixels within the current window (b) If the number of the uncorrupted pixels in current W is equal to zero, then don’t replace the intensity value of the ... exist within the current window, W Perform the following steps if the number of the uncorrupted pixels that exist within the current W is else than zero (i) For the current window, compute the Euclidean ... University in 1983, 1986, and 1989, respectively, all in electronic engineering Since 1979, he has been a member of the academic staff in the Electronic Engineering Department, Engineering Faculty,...
- 7
- 241
- 0
Báo cáo y học: "Filtering out the noise: evaluating the impact of noise and sound reduction strategies on sleep quality for ICU patients" ppt
Ngày tải lên :
13/08/2014, 16:20
... may therefore underestimate the amount of sleep disruption due to noise, or may incorrectly attribute awakenings to noise without identifying other important contributing factors placed on noise ... depend in part on the number of other factors examined as potential contributors to sleep disruption Nonetheless, this paper lays the groundwork for further research in this area by providing a ... difficulty of arriving at a single conclusion with respect to the impact of noise on sleep disruption in the ICU A third factor that may account for the discrepancy in reported results is the breadth...
- 2
- 170
- 0
Tài liệu Advanced Digital Signal Processing and Noise Reduction P2 ppt
Ngày tải lên :
25/01/2014, 13:20
... of the noise For example, the noise from a car engine conveys information regarding the state of the engine The sources of noise are many, and vary from audio frequency acoustic noise emanating ... is the signal to be detected, n(m) is the noise and b(m) is a binary-valued state indicator sequence such that b(m) = indicates the presence of the signal x (m) and b( m) = indicates that the signal ... twice the maximum frequency content of the signal, then the repetitions of the signal spectra are separated as shown in Figure 1.19 In this case, the analog signal can be recovered by passing the...
- 20
- 466
- 1
Tài liệu Advanced Digital Signal Processing and Noise Reduction P1 doc
Ngày tải lên :
25/01/2014, 13:20
... unit at the receiver for extraction of the information from the signal In general, there is a mapping operation that maps the information I (t ) to the signal x (t ) that carries the information, ... channel, the speech signal is observed in an additive random noise In signal measurement systems the information-bearing signal is often contaminated by noise from its surrounding environment The ... of noise, including thermal noise, shot noise, acoustic noise, electromagnetic noise and channel distortions, are considered The chapter concludes with an introduction to the modelling of noise...
- 30
- 408
- 0
Advanced digital signal processing and noise reduction 2nd edition
Ngày tải lên :
18/04/2014, 13:26
... unit at the receiver for extraction of the information from the signal In general, there is a mapping operation that maps the information I (t ) to the signal x (t ) that carries the information, ... channel, the speech signal is observed in an additive random noise In signal measurement systems the information-bearing signal is often contaminated by noise from its surrounding environment The ... of the noise For example, the noise from a car engine conveys information regarding the state of the engine The sources of noise are many, and vary from audio frequency acoustic noise emanating...
- 493
- 419
- 0
Báo cáo sinh học: " Research Article Two-Dimensional Harmonic Retrieval in Correlative Noise Based on Genetic Algorithm" pdf
Ngày tải lên :
21/06/2014, 16:20
... fitness when d < R (6) Combine the M individuals with the N individuals Sort the M + N individuals according to their fitness Save the first N individuals and the first M individuals (7) Set t = t ... importance when the obtained solution is closer to the optimal solution The mutation can be completed in the following way: assuming xk is the kth component of the individual Xi , the mutation EURASIP ... shows the ten greatest estimated mean of |M 4x (α, β)| using the GA from 100 Monte Carlo runs The x-coordinate denotes the index of individuals and the y-coordinate denotes the corresponding estimated...
- 10
- 260
- 0
báo cáo hóa học:" Robust reconstruction algorithm for compressed sensing in Gaussian noise environment using orthogonal matching pursuit with partially known support and random subsampling" pdf
Ngày tải lên :
21/06/2014, 17:20
... measurement signal, y • The set containing the indexes of the bases in LL subbands, Γ = {γ1, γ2, , γ|Γ|} • The number of non-zero entries in the sparse signal, k Output: • The set containing k indexes ... difference signal in the ensemble; therefore, the noise in each pixel could be reduced by averaging the intensity among signals in the ensemble On the other hand, DCS-SOMP tried to find one result ... by taking the average at each pixel Because the average is not done in spatial domain, therefore the loss in spatial resolution is low The denoising in spatial domain can be done by using the conventional...
- 47
- 409
- 0
Báo cáo hóa học: "Robust reconstruction algorithm for compressed sensing in Gaussian noise environment using orthogonal matching pursuit with partially known support and random subsampling" doc
Ngày tải lên :
21/06/2014, 19:20
... measurement signal, y • The set containing the indexes of the bases in LL subbands, Γ = {γ1, γ2, , γ|Γ|} • The number of non-zero entries in the sparse signal, k Output: • The set containing k indexes ... difference signal in the ensemble; therefore, the noise in each pixel could be reduced by averaging the intensity among signals in the ensemble On the other hand, DCS-SOMP tried to find one result ... by taking the average at each pixel Because the average is not done in spatial domain, therefore the loss in spatial resolution is low The denoising in spatial domain can be done by using the conventional...
- 47
- 276
- 0
Báo cáo hóa học: " An FIR Notch Filter for Adaptive Filtering of a Sinusoid in Correlated Noise" potx
Ngày tải lên :
22/06/2014, 23:20
... of the proposed algorithm The larger N is, the sharper the notch in the frequency response at the signal frequency While increasing N, L should also be increased to minimize the variability in ... where the actual angle-of–arrival of the signal is 4◦ and the initial estimate is 0◦ Figure 10 shows the convergence of the estimated AOA to the true one The frequencies of the signal and the interference ... RMSE of the FIR-ANF and the IIR-ANF except at the edges of the frequency range This is due to the terms in the denominator in (45) which become zero at the edges The RMSE performance of the FIR...
- 10
- 452
- 0