نتایج جستجو برای: mirror reaction

تعداد نتایج: 437708  

2010
Zhen-Ting Du Yan Xu Hong-Rui Yu Yong Li

The title compound, C(12)H(8)N(2)O(5), was obtained by the reaction of 1-chloro-2,4-dinitro-benzene and phenol in the presence of potassium carbonate. The nitro-substituted benzene ring lies on a mirror plane, with one NO(2) group in the same plane and the other disordered across this plane. The phenoxy-benzene unit is placed perpendicular to this mirror, resulting in an exact orthogonal relati...

2004
J. Ekman C. Andreoiu C. Fahlander M. N. Mineva D. Rudolph M. A. Bentley S. J. Williams R. J. Charity E. Ideguchi W. Reviol D. G. Sarantites V. Tomov

Three previously unknown high-energy g-ray transitions between 4.2 and 5.4 MeV were identified in the Tz=−1/2 nucleus Fe following the fusion-evaporation reaction SsSi,2a1nd51Fe. These transitions represent decays of core excited states. The g rays were detected in the Ge detector array Gammasphere combined with the neutron detector system Neutron Shell and the charged-particle array Microball....

2011
Zhi-Biao Zhu Shan Gao Seik Weng Ng

The reaction of 4-amino-pyridine and oleum yielded the title hydrated zwitterion, C(5)H(6)N(2)O(3)S·H(2)O. There are two formula units in the asymmetric unit. The H and non-H atoms of both zwitterions lie on a mirror plane except for one sulfonate O atom. The water mol-ecules are also situated on a mirror plane. In the crystal, the zwitterions and water mol-ecules are linked by O-H⋯O and N-H⋯O ...

Journal: :Science 1982
V D Hollard J D Delius

Pigeons and humans chose which one of two alternative visual forms was identical to, or a mirror image of, a previously presented sample form. The two comparison forms were presented in various orientations with respect to the sample. The two species yielded similar accuracies, but although human reaction times depended linearly on the angular disparities, those of the pigeon did not. Humans ap...

Journal: :The British journal of psychiatry : the journal of mental science 2007
Martin Schürmann Juha Järveläinen Sari Avikainen Tyrone D Cannon Jouko Lönnqvist Matti Huttunen Riitta Hari

Schizophrenia is often associated with difficulties in distinguishing between actions of self and of others. This could reflect dysfunction of the mirror neuron system which directly matches observed and executed actions. We studied 11 people with schizophrenia and their co-twins without manifest disease, using stimulus-induced changes in the magnetoencephalographic approximately 20 Hz rhythm a...

2012
Na Wang Jin-Guo Wang An-Jie Min Yao-Wen Fu

The title ion-pair compound, (C(7)H(7)N(2))(2)[Cu(C(4)N(2)S(2))(2)], was obtained by the direct reaction of CuCl(2)·2H(2)O, disodium maleonitrile-dithiol-ate (Na(2)mnt) and 4-cyano-1-methyl-pyridinium iodide. The anion and one pyridinium cation lie entirely on a mirror plane, whereas for the other cation, a crystallographic mirror plane runs through the N and para-C atoms of the pyridine ring, ...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1996
H Ackermann I Daum M M Schugens W Grodd

Two paradigms of procedural learning, serial reaction time and tracking tasks, were given to a patient with damage to the supplementary motor area (SMA) of the left mesiofrontal cortex. This patient exhibited impaired procedural learning during the serial reaction time test and mirror reversed tracking. Unreversed tracking performance was normal. Therefore the SMA--as well as the cerebellum and...

2003
Hermann Ackermann Irene Daum Markus M Schugens Wolfgang Grodd

Two paradigms of procedural learning, serial reaction time and tracking tasks, were given to a patient with damage to the supplementary motor area (SMA) of the left mesiofrontal cortex. This patient exhibited impaired procedural learning during the serial reaction time test and mirror reversed tracking. Unreversed tracking performance was normal. Therefore the SMA-as well as the cerebellum and ...

Journal: :Brain research 2011
M C Keuken A Hardie B T Dorn S Dev M P Paulus K J Jonas W P M Van Den Wildenberg J A Pineda

Perceiving and interpreting social information richness is something that humans do automatically whenever they engage in social interactions. Numerous studies have identified neural substrates, including mirror neurons that may enable such social perception. In this study, we temporarily disrupted activity in the left inferior frontal gyrus (LIFG) using repetitive transcranial magnetic stimula...

Journal: :Journal of comparative psychology 2000
M Ujhelyi B Merker P Buk T Geissmann

Three captive gibbons (Hylobates leucogenys, H. gabriellae, and H. lar) were videotaped in the course of longitudinal exposure to mirrors introduced into their familiar cage or island housing situation. The gibbons, which differed in age, sex, species, and rearing condition, exhibited great individual differences in their behavioral reactions to mirrors, spanning from a minimal reaction dominat...

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