For decades,researchers have known that when neurons lose their activating inputs,they can atrophy and even die.For example,removing sensory nerve inputs from the arm to the spinal cord after amputation or cutting the...For decades,researchers have known that when neurons lose their activating inputs,they can atrophy and even die.For example,removing sensory nerve inputs from the arm to the spinal cord after amputation or cutting the spinal nerves can shrink the post-synaptic target zones(e.g.,Woods et al.,2000).From touch receptors for the hand and arm,primary nerve afferents enter the spinal cord,and axons travel in the dorsal columns to target the cuneate nucleus(Cu)of the brainstem on the same side of the body(Figure 1).When sensory loss is unilateral,the overwhelming result is for the associated primary target zone to shrink in total size(cross-sectional area),as compared to the size of the opposite side.展开更多
A series of organic solar cells(OSCs)are prepared with PTB7:PC71 BM as the host materials and DIB-SQ as the third component.The power conversion efficienty(PCE)of OSCs can be improved from 6.79%to 7.92%by incorporatin...A series of organic solar cells(OSCs)are prepared with PTB7:PC71 BM as the host materials and DIB-SQ as the third component.The power conversion efficienty(PCE)of OSCs can be improved from 6.79%to 7.92%by incorporating 6 wt%DIB-SQ into donors,resulting from the enhanced short circuit current density(J_(SC))and fill factor(FF).The increased JSCof the optimized ternary OSCs should be attributed to the enhanced photon harvesting of teranry active layer by incorporating DIB-SQ.Meanwhile,FF of the optimized ternary OSCs should be due to the optimied phase separation.The open circuit voltage(V_(OC))of tenray OSCs can be maintained at a constant of 0.75 V,indicating that all photogenerated holes willl be transported along the channels formed by PTB7.展开更多
Among cases of spinal cord injury are injuries involving the dorsal column in the cervical spinal cord that interrupt the major cutaneous afferents from the hand to the cuneate nucleus（Cu）in the brainstem.Deprivatio...Among cases of spinal cord injury are injuries involving the dorsal column in the cervical spinal cord that interrupt the major cutaneous afferents from the hand to the cuneate nucleus（Cu）in the brainstem.Deprivation of touch and proprioceptive inputs consequently impair skilled hand use.展开更多
基金supported by National Institute of Health Grant NINDS NS16446 to JHK and NS067017 to HXQsupported by NIH NINDS NS129982 and NIH NEI EY002686 to JHK
文摘For decades,researchers have known that when neurons lose their activating inputs,they can atrophy and even die.For example,removing sensory nerve inputs from the arm to the spinal cord after amputation or cutting the spinal nerves can shrink the post-synaptic target zones(e.g.,Woods et al.,2000).From touch receptors for the hand and arm,primary nerve afferents enter the spinal cord,and axons travel in the dorsal columns to target the cuneate nucleus(Cu)of the brainstem on the same side of the body(Figure 1).When sensory loss is unilateral,the overwhelming result is for the associated primary target zone to shrink in total size(cross-sectional area),as compared to the size of the opposite side.
基金Project supported by the National Natural Science Foundation of China(Grant Nos.61675017,61377029,and 61705161)the National Training Program of Innovation and Entrepreneurship for Undergraduates,China(Grant No.170170010)
文摘A series of organic solar cells(OSCs)are prepared with PTB7:PC71 BM as the host materials and DIB-SQ as the third component.The power conversion efficienty(PCE)of OSCs can be improved from 6.79%to 7.92%by incorporating 6 wt%DIB-SQ into donors,resulting from the enhanced short circuit current density(J_(SC))and fill factor(FF).The increased JSCof the optimized ternary OSCs should be attributed to the enhanced photon harvesting of teranry active layer by incorporating DIB-SQ.Meanwhile,FF of the optimized ternary OSCs should be due to the optimied phase separation.The open circuit voltage(V_(OC))of tenray OSCs can be maintained at a constant of 0.75 V,indicating that all photogenerated holes willl be transported along the channels formed by PTB7.
基金supported by NIH grants NS067017 to HXQNS16446 to JHK
文摘Among cases of spinal cord injury are injuries involving the dorsal column in the cervical spinal cord that interrupt the major cutaneous afferents from the hand to the cuneate nucleus（Cu）in the brainstem.Deprivation of touch and proprioceptive inputs consequently impair skilled hand use.
