... interspersed by a stimulus which deviated from the standard in the intensity of the first component and the glide direction of the second constituent The number of distinct MMN components elicited ... 56]; these findings further support the concept of the P3 as a proxy for some element of stimulus evaluation time Evidence has accumulated describing the P300 as a cognitive routine supporting the ... peak-areas decrease in the older population, suggesting a shortening of the sensory auditory memory trace with increasing age [19] The same phenomenon occurs in the very young, indicating the necessity...
Ngày tải lên: 02/11/2012, 11:08
65 Electromagnetic Vector-Sensor Array Processing
... r j )/c, where uk is the unit vector in the direction from the array to the kth source and r j is the position vector of the j th sensor in the reference frame The rest of the notation in Eq (65.19) ... using the measurements of a single vector sensor The motivation for this algorithm stems from the average cross-product Poynting vector Observe that −u is the unit vector in the direction of the ... Bound Consider the estimation of θ in the model (65.21) under the above assumptions and with θ , P , σ unknown We have the following theorem THEOREM 65.2 The Cram´r-Rao lower bound on the covariance...
Ngày tải lên: 08/11/2013, 12:15
... the model The path of the template strand then takes it past the r2 r3 linker and elements of the b subunit that make up the back wall of the RNAP active-site channel, until it passes near the ... T)11 and T+2 Therefore, the measured contribution of these forms to the integrated intensity of these two bases was used in the calculation of the contribution of individual bases to the integrated ... reect the differences in the extent of the electrostatic barrier to MnO4 diffusion, whereas those extrapolated to the saturating Mg2+ concentration point to the differences in the extent of the...
Ngày tải lên: 19/02/2014, 18:20
Báo cáo khoa học: The chaperone and potential mannan-binding lectin (MBL) co-receptor calreticulin interacts with MBL through the binding site for MBL-associated serine proteases pdf
... [24–31] These affect the oligomerization of the protein, indirectly affecting the association with the MASPs, or directly affecting the binding site for the MASPs, which has been localized to the ... collectins, and the role of these molecules in the immune system relies on their ability to bind to repeating patterns of certain carbohydrate residues and other components on the surface of micro-organisms ... consistent with the fact that the variants lack the ability to associate with rMBL [56,57] In the same way, the fact that no binding was observed with pMBL is fully consistent with the latter being...
Ngày tải lên: 07/03/2014, 05:20
Retail Consolidation and Produce Buying Practices: A Summary of the Evidence and Potential Industry and Policy Responses pot
... differentiate themselves through the services they emphasize, advertising, and other marketing strategies The question, thus, is not whether retailers have the ability to influence prices, but the extent ... retaining most of the control of marketing their products We thus focus our discussion on the potential role for this type of collective action in the produce industry On the surface, the potential for ... whether the effects are likely to be good or bad for competition If offered by suppliers, then the potential for competitive foreclosure and raising of barriers to entry is clear On the other...
Ngày tải lên: 07/03/2014, 13:20
Support to the identification of potential risks for the environment and human health arising from hydrocarbons operations involving hydraulic fracturing in Europe doc
... present at the appropriate point, fracturing fluid is pumped into the well at high pressure The proppant is forced into the fractures by the pressured water, and holds the fractures open once the water ... evaluating the potential significance and likelihood of impacts occurring Each potential issue was considered against these criteria to the extent permitted by the available information The study ... extracted The challenge of ensuring the integrity of wells and other equipment throughout the development, operational and post-abandonment lifetime of the plant (well pad) so as to avoid the risk...
Ngày tải lên: 23/03/2014, 00:20
maxwell jc - a dynamic theory of the electromagnetic field
... therefore medium, the one form being the actual and the other being the potential energy stored up in the connexions, in virtue of their elasticity (16) Thus, then, connexions elasticity of these ... calculation, I then them express in the form of the General Equations of the Electromagnetic Field These equations express The (A) relation The (G) The displacement, true conduction, and electric the total ... measured by the quantity of on either surface when the difference of potentials Let S be the area of either surface, a the thickness of the cient of electric elasticity; then the other side ^,+1,...
Ngày tải lên: 04/06/2014, 12:44
Báo cáo hóa học: " Research Article Computationally Efficient DOA and Polarization Estimation of Coherent Sources with Linear Electromagnetic Vector-Sensor Array" ppt
... y,k , hz,k ]T denote the electric field vector and the magnetic field vector, respectively The intersensor spatial phase factor for the kth incidef dent signal and the mth vector sensor is qm (θk ... signify the direction cosines along the x-axis and y-axis, respectively (xm , ym ) is the location of the mth vector sensor, λ equals the signals’ wavelength Denoting the spacing between adjacent vector ... with K vector sensors and the lth subarray comprises the lth to (l + K − 1)th vector sensor, where L = M − K + We use the first vector sensor as a reference (x1 = 0, y1 = 0), and then the corresponding...
Ngày tải lên: 21/06/2014, 05:20
Báo cáo hóa học: "Research Article Quad-Quaternion MUSIC for DOA Estimation Using Electromagnetic Vector Sensors" pptx
... whether the indetermination of quad-quaternion eigenvectors impacts the results of MUSIC According to Lemma 8, the indetermination of eigenvectors does not impact the vector space spanned by them, ... that the rank of A = [a1 , a2 , , aM ] is M, then in the absence 2 of noise, the rank of Rx = diag([σ1 , σ2 , , σM ])AAH is M, and the column vectors of Rx span the signal subspace Rs In the ... does not impact their span From the geometric perspective, when the eigenvector multiplies a nonzero scalar from the right side, all the elements of this eigenvector are rotated in the 16D quad-quaternion...
Ngày tải lên: 22/06/2014, 01:20
Báo cáo hóa học: "Frequency and 2D Angle Estimation Based on a Sparse Uniform Array of Electromagnetic Vector Sensors" pptx
... uk , vk , wk , respectively, symbolize the direction cosine along the x-axis, y-axis, and the z-axis The spatial phase factor of the kth signal at the mth vector sensor located (m − 1)Δ along x-axis ... (l−1)Δ sin θk sin φk /c , l = 1, 2, , L (5) The 6×1 vector measurement in the nth snapshot is produced by the mth vector sensor along x-axis and the lth vector sensor along y-axis, respectively, ... zero-mean additive white noise vector in nth snapshot at the mth vector sensor along x-axis and the lth vector sensor along y-axis Time-delayed data collected from the linear vector sensor array along...
Ngày tải lên: 22/06/2014, 23:20
the electromagnetic origin of quantum theory and light
... Next, bring the asteroids into the same local region Either the speeds depend upon the magnitude of the local masses or they not, and if they not, there is no change in speed However, in the local ... (1.3.13) In the rest frame m0 is the rest mass The particle energy is: W0 = m0 c2 (1.3.14) By Eq (1.3.14), the first term of Eq (1.3.13) is the self-energy of the mass The second term is the kinetic ... (1.5.2) The vector terms within the curly brackets, identified by bold font, indicate the first three dimensions, and the scalar term represents the fourth dimension The 4-divergence of the current...
Ngày tải lên: 06/07/2014, 15:31
the electromagnetic origin of quantum theory and light
... Next, bring the asteroids into the same local region Either the speeds depend upon the magnitude of the local masses or they not, and if they not, there is no change in speed However, in the local ... (1.3.13) In the rest frame m0 is the rest mass The particle energy is: W0 = m0 c2 (1.3.14) By Eq (1.3.14), the first term of Eq (1.3.13) is the self-energy of the mass The second term is the kinetic ... (1.5.2) The vector terms within the curly brackets, identified by bold font, indicate the first three dimensions, and the scalar term represents the fourth dimension The 4-divergence of the current...
Ngày tải lên: 06/07/2014, 15:34
Báo cáo toán học: "The h-vector of a Gorenstein toric ring of a compressed polytope" pptx
... is the dimension of P The sequence h(K[P]) = (h0 , h1 , , hs ) is called the h -vector of K[P] If the toric ring K[P] is normal, then K[P] is Cohen– Macaulay If K[P] is Cohen–Macaulay, then the ... contains exactly q − of the vertices of Σ It turns out [1, Theorem 3.5] that if P is compressed and if there is a special simplex in P, then the h -vector of K[P] is equal to the h -vector of a simplicial ... virtue of [1, Theorem 3.5] together with Theorem 0.1 it follows that Corollary 0.2 Let P be a compressed polytope and suppose that the toric ring K[P] is Gorenstein Then the h -vector of K[P]...
Ngày tải lên: 07/08/2014, 08:22
Báo cáo toán học: "On the h-Vector of a Lattice Path Matroid" pot
... PM -vector is a pure M -vector (by definition), but the converse does not hold: the M -vector (1, 4, 2) is pure but not PM Thus, the following corollary strengthens Theorem 3.6 Corollary 4.5 The h -vector ... i=0 i=0 The f- and h-vectors of a matroid M are those of its independence complex (the simplicial complex whose faces are the independent sets of M) The h -vector of M is also given by the coefficients ... such that the degree of the monomial corresponding to a path σ is the number of loose steps of σ Given Corollary 3.4, this will prove the theorem Let σ be a path between σA and σC Define the monomial...
Ngày tải lên: 08/08/2014, 01:20
Báo cáo y học: "The discovery of potential acetylcholinesterase inhibitors: A combination of pharmacophore modeling, virtual screening, and molecular docking studies" pptx
... between the cost of null hypothesis and the total cost The larger the difference between the cost of the null hypothesis and total cost, the greater the likelihood that the correlation between the ... calculates the cost of the null hypothesis, with the assumption that there is no relationship between the estimated and measured biological activities The residual cost (Table 1) is the difference ... found at the bottom of the gorge The combination of these interactions in other inhibitors (e.g., donepezil, galanthamine) is already found in the AChE crystal complex structure and therefore the...
Ngày tải lên: 10/08/2014, 05:21
báo cáo khoa học: " The influence of genomics and proteomics on the development of potential vaccines against meningococcal infection" pps
... heterologous serosubtypes Unfortunately, at the time of these studies, the limitations of available technology meant that the identity of the antigen(s) responsible for potential cross-reactive immu nity ... detected in the preparations occur in a natural association with the OM or whether they arise by ‘contami ation’ during the isolation process However, n proteomic analysis has shown that they are ... those of the tricar oxylic b acid cycle [25] The possible effects of these differ nces in e protein content between the two vaccines are unknown Immunoproteomics The ability to combine the proteomic...
Ngày tải lên: 11/08/2014, 12:20
Báo cáo y học: " Research In silico modeling of the specific inhibitory potential of thiophene-2,3-dihydro-1,5-benzothiazepine against BChE in the formation of β-amyloid plaques associated with Alzheimer''''s disease" doc
... the Compound A-AChE system, the RMSD increases until the 200th ps and then remains unchanged up to the 2500th ps Between the 2500th and 4300th ps, the RMSD slightly increases once again but then ... differences, a major diversity in the ligand-AChE complexes was the variation in the positioning of the side chain of Phe330 The divergence in the orientation of the aromatic ring of Phe330 must ... its dynamic behavior within the ChE active site The study also focuses on the comparison between the inhibitory potentials of Compound A on the Page of 26 Ul-Haq et al Theoretical Biology and Medical...
Ngày tải lên: 13/08/2014, 16:20
Báo cáo y học: "Early down-regulation of the pro-inflammatory potential of monocytes is correlated to organ dysfunction in patients after severe multiple injury: a cohort study" pptx
... cytokines after the traumatic impact and not yet replaced by their successors from the bone marrow On the other hand, the influx of newly recruited and possibly immature monocytes may lack the full ... cell cultures disregarding the fact that other peripheral blood cells are also potentially inducible to secrete cytokines in response to the same stimulants Furthermore, the proportion of different ... principally given as the standard error of the mean Data are plotted as boxes (interquartile range that contains the 50% of values) with a straight line at the median, a dashed line at the mean, and...
Ngày tải lên: 13/08/2014, 16:21
Studies of the anti cancer potential of flavonoids in human nasopharyngeal carcinoma cells
... cycle Cdks and their corresponding cyclins as the key regulators of the cell cycle Substrates of cdks Cdk substrates at the G1-S phase Cdk substrates at the S phase Cdk substrates at the M phase ... DNA damage occur These play important roles in the initiation and progression of neoplasms On the other hand, cells exhibit biological responses that will protect them from the consequences of ... (Chan et al., 2004) While radiotherapy and chemoradiotherapy are the conventional treatment for NPC, there are now novel potential treatments that specifically target the molecular aberrations of...
Ngày tải lên: 10/09/2015, 15:53