نتایج جستجو برای: mirror reaction
تعداد نتایج: 437708 فیلتر نتایج به سال:
A Pd(II)-catalyzed homo-coupling of Au(I)-aryls is reported. The reaction is driven by a Pd(0)/Au(I) redox reaction that generates a gold mirror and Pd(II), and illustrates one of the challenges for developing dual catalytic Au-Pd systems.
Submit Manuscript | http://medcraveonline.com Abbreviations: MNS: Mirror Neuron System; TKD: Taekwondo Athletes; SOC: Soccer Players; CRT: Choice Reaction Time; MAS: Maximal Aerobic Speed; E: Effort; E60: Effort at 60% of MAS; E80: Effort At 80% of MAS; E100: Effort at 100% of MAS; E120: Effort at 120% of MAS; RT: Reaction Time; OEE: Observed Exerted Effort; SD: Standard Deviation; FMRI: Functi...
This work introduces a new and simple method for adjusting the gain of current mirror. The major advantage of the proposed architecture is that, unlike the conventional variable gain current mirror, it does not need the change of the biasing current to adjust current gain. Therefore, the power dissipation remains constant in all of the gain settings. In addition, the proposed variable gain curr...
Kinetic modeling using nonlinear differential equations is proposed to analyze the spontaneous generation of enantiomeric excess in the autocatalytic addition of diisopropylzinc to prochiral pyrimidine carbaldehydes (Soai reaction). Our approach reproduces experimentally observed giant chiral amplification from an initial enantiomeric excess of <10(-6)% to >60%, high sensitivity and positive re...
Recent studies have reported the discovery of a group of neurons in the motor cortex of the brain's gray. These neurons are called mirror neurons. Rizzolatti and colleagues in 1990s discovered the first mirror neuron system in monkeys in the University of Parma. Mirror neurons in brain are responsible for understanding the actions and intentions of others. The mirror neuron system has an import...
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
[reaction: see text] L-Glycals can be prepared in seven steps from readily available D-glucals, enabling the facile construction of mirror-image carbohydrates such as the L-lactosamine derivative shown above.
Background and Aim: Stroke is one of major causes of disability. Therefore, it is important to introduce and develop new treatment approaches in order to improve and enhance post-stroke recovery process for medical, social, and economical purposes. The present study aimed at determining the effect of mirror therapy on walking ability of patients with stroke regarding the muscular power of the a...
For eighty-six years, this journal has held a mirror to the world of archives and archivists, its authors writing ongoing analysis our professional ethics, theories, craft. The stated purpose is “to reflect thinking about theoretical practical developments in archival profession, particularly North America; relationships between archivists creators users archives; cultural, social, legal, techn...
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