نتایج جستجو برای: charge reversal substitutions
تعداد نتایج: 192530 فیلتر نتایج به سال:
In nanofiltration (NF), solution and membrane chemistry determine the charge density. multi-component electrolytes solutions, it is important to consider interaction between ions NF membranes. For instance, in presence of divalent ions, reversal can take place due counterions with charged functional groups membrane. This paper presents a model based on state-of-the-art mean-field theory that in...
A scanning tunneling microscopy study of a photochromic diarylethene adsorbed on Au and Cu reveals the reversal of thermodynamic stability between its two isomers compared to the gas phase, in solution, and its single crystal, which could result from the molecule-substrate interaction such as charge transfer and hybridization.
Some recent experimental and theoretical work on 1) charge symmetry-breaking, 2) parity non-conservation, and 3) searches for breaking of time reversal invariance are reviewed. The examples illustrate the uses of symmetry to learn about underlying dynamics and/or structure. INTRODUCTION Nuclei are known to be a superb laboratory for studies of symmetries and symmetrybreaking as well as tests of...
We review a recent theoretical determination of the strange quark content of the electromagnetic form factors of the nucleon. These are compared with a global analysis of current experimental measurements in parity-violating electron scattering. PACS. 14.20.Dh Protons and neutrons – 11.30.Er Charge conjugation, parity, time reversal, and other discrete symmetries in particles and fields
Since the fall of parity in electroweak interactions the discrete transformations of parity, charge conjugation and time reversal are under close scrutiny for any sign of deviation from maximality where symmetry breaking seems to be complete (like P violation in β decay) and for any sign of symmetry breaking when this has not yet been observed (like T violation in
Tic disorders, including childhood disorders is the most important in the absence of treatment and recovery can affect the life and future of children. The goal of this study was the Effectiveness of Habit Reversal Techniques Training in Reduction Intensity and Frequency Motor tics. So, 2 boys with motor tic were selected by available sampling from bozorgmehr clinic in Tabriz city. Each of the ...
Trichotillomania refferes compulsive hair pulling that results in considerable hair loss.Many medical and nonedical therapies have been applied for treatment of this disorder. The purpose of this study was to compare the efectiveness of Clomipramine, Hydroxyzine, and behavior therapy (habit reversal) in the treatment of trichottillomania. To achieve this 15 patients with trichotillomania were r...
As the most nucleophilic site in DNA, the guanine N7 atom is a major site of adduction by a large number of alkylating mutagens and carcinogens. Aflatoxin B1, a powerful mutagen, is believed to act through its reaction with this DNA site. On the basis of the specificity of base substitutions induced by various adduct forms of aflatoxin, we have proposed that bulky guanine N7 adducts elicit base...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید