Study of beamformer technique with reduced time window for moving current source reconstruction

2012 ◽  
Author(s):  
W.Y. Wang ◽  
D.F. Zhou ◽  
S.Q. Jiang
Keyword(s):  
Time Window ◽  
Current Source ◽  
Source Reconstruction ◽  
Reduced Time

Stage-specific inductive signals in the Drosophila neuroectoderm control the temporal sequence of neuroblast specification

Development ◽  
2001 ◽  
Vol 128 (17) ◽  
pp. 3243-3251 ◽  
Author(s):  
Christian Berger ◽  
Joachim Urban ◽  
Gerhard M. Technau
Keyword(s):  
Progenitor Cells ◽  
Neural Progenitor Cells ◽  
Time Window ◽  
Neural Progenitor ◽  
Temporal Sequence ◽  
Drosophila Embryo ◽  
Transplantation Experiments ◽  
Reduced Time ◽  
Inductive Signals

One of the initial steps of neurogenesis in the Drosophila embryo is the delamination of a stereotype set of neural progenitor cells (neuroblasts) from the neuroectoderm. The time window of neuroblast segregation has been divided into five successive waves (S1-S5) in which subsets of neuroblasts with specific identities are formed. To test when identity specification of the various neuroblasts takes place and whether extrinsic signals are involved, we have performed heterochronic transplantation experiments. Single neuroectodermal cells from stage 10 donor embryos (after S2) were transplanted into the neuroectoderm of host embryos at stage 7 (before S1) and vice versa. The fate of these cells was uncovered by their lineages at stage 16/17. Transplanted cells adjusted their fate to the new temporal situation. Late neuroectodermal cells were able to take over the fate of early (S1/S2) neuroblasts. The early neuroectodermal cells preferentially generated late (S4/S5) neuroblasts, despite their reduced time of exposure to the neuroectoderm. Furthermore, neuroblast fates are independent from divisions of neuroectodermal progenitor cells. We conclude from these experiments that neuroblast specification occurs sequentially under the control of non-cell-autonomous and stage-specific inductive signals that act in the neuroectoderm.

Prediction of magnetic field emissions by current source reconstruction using radial basis function network

2015 ◽  
Vol 51 (16) ◽  
pp. 1243-1245 ◽  
Author(s):  
Yinliang Diao ◽  
Weinong Sun ◽  
Sai Wing Leung ◽  
Kwok Hung Chan ◽  
Yun Ming Siu
Keyword(s):  
Magnetic Field ◽  
Radial Basis Function ◽  
Basis Function ◽  
Radial Basis Function Network ◽  
Current Source ◽  
Source Reconstruction ◽  
Field Emissions ◽  
Radial Basis ◽  
Function Network

Sparse current source reconstruction in MCG

2015 ◽  
Vol 60 (14) ◽  
pp. 1235-1240
Author(s):  
Mengpei Chen ◽  
Shiqin Jiang ◽  
Lu Bing ◽  
Chen Zhao ◽  
Birgit Hailer ◽  
...  
Keyword(s):  
Current Source ◽  
Source Reconstruction

Reduced time window sestamibi scanning for nonlocalized adenomas

1999 ◽  
Vol 121 (2_suppl) ◽  
pp. P168-P169
Author(s):  
Ashutosh Kacker ◽  
Steve Scnarf ◽  
Arnold Komisar
Keyword(s):  
Time Window ◽  
Sestamibi Scanning ◽  
Reduced Time
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