báo cáo hóa học: " On the potential role of glutamate transport in mental fatigue" ppt

... overstimulation of the cerebral cortex. Here, the final shutdown of the glutamate transmission could be one mechanism underlying mental exhaustion (figure 1). In line with these theoretical proposals, increased ... fatigue. In addition, the decrease in noradrenaline and serot- onin release might be part of decreased attention and the appearance of depression ofte...

Ngày tải lên: 19/06/2014, 22:20

... Proof of the theorem Proof of Theorem 1.1.Letm =min |z|=k |p(z)|. If p( z)hasazeroon|z|=k,thenm = 0 and the result follows from Lemma 2.8. Henceforth, we suppose that all the zeros of p(z) lie in ... result contradicts the fact that |a 1 |>k. Hence, the polynomial D α 1 p(z) must be of degree (n - 1). On the other hand, since all the zeros of p(z) lie in |z| ≤...

Ngày tải lên: 20/06/2014, 22:20

... ℝ ® ℝ is an additive function and a n is a function satisfying (1). The continuation of proof depend on the dimension of H. In fact, if H is infinite dimensional, since (e n ⊗ F)(x)=  F( x ), ... distribution, and reproduction in any medium, provided the original work is properly cited. exponential equation as exponential function. A general solution of the exponential eq...

Ngày tải lên: 20/06/2014, 22:20

... ≡ 0 because of the continuity of the function ˜ q n1 j on (0, R). In such a case, the elements of the second row of matrix ˜ Q n satisfy the equation l n ( ˜ q n2 j )= 0 . For the same reason as a ... with degeneracy at an inner point of the considereddomainareobtainedin[1].Inthat study, the Dirichlet problem for a weakly (regularly) degenerating elliptic equatio...

Ngày tải lên: 21/06/2014, 00:20

... well as the effect of an arbitrary magnitude clipping response by giving an analytical expression in the form of a power series for computing the EVM of the gen- eralized cas e. Analysis of clipped ... evaluation for each desired scenario. The paper is organized as follows. In Section 2 the system model used in this work is introduced. Theorem 3.1 in Section 3 pres...

Ngày tải lên: 21/06/2014, 01:20

... number of feedback bits per user must increase linearly with the logarithm of the down- link SNR to maintain the full multiplexing gain. Further, the authors in [26] pointed out that in the scenar ... f(x)=e x E n (x)(n ≥ 1) is a monotonically decreasing function. The proofs of these three lemmas are in Appendices 4-6, respectively. Then we have the following theorem...

Ngày tải lên: 21/06/2014, 02:20

... a multiset of productions in N × V ∗ and D is a re- lation from nonterminals in the right parts of pro- ductions in P to nonterminals in their left parts, and S in N is the start symbol. A terminal ... D i ) in W , at least one of the p i,j should contain at least one terminal in its right part—we have then L(UVG-dl  ) ⊆ L(MLIG  ). More on Dominance Links Dominan...

Ngày tải lên: 16/03/2014, 23:20

... be taken into account when recording in untrained sub- jects. In the long term, these findings are of relevance for the VR-fNIRS instrument’s potential in neurofeed- back applications. LH conceived of ... taken into account when recording in untrained subjects. These findings are of relevance for demonstrating the potential of the VR-fNIRS instrument in neurofeed...

Ngày tải lên: 19/06/2014, 08:20

... result in improved motor function together with the decreased risk of secondary health problems. Yet this is labour intensive. Further- more, patients often find the training uninteresting, tiring and ... cost of stroke is expected to exceed a trillion dollars in the US alone [2]. So what can be done now to mitigate this? Since a large part of the cost of stroke is the m...

Ngày tải lên: 19/06/2014, 08:20

... classification system for ENG signals. Training is performed on the first and testing on the sec- ond half of the data. (A) Training procedure consisting of: Filtering (in order to eliminate the EMG ... difference on the type of processing available based on the selectivity of the electrode and its place- ment. For example, by using cuff electrodes only the s...

Ngày tải lên: 19/06/2014, 08:20