نتایج جستجو برای: proton proton coupling

تعداد نتایج: 215483  

Journal: :Physics Letters B 2021

Gauge coupling unification in the Supersymmetric Standard Models strongly implies Grand Unified Theories (GUTs). With grand desert hypothesis, we show that supersymmetric GUTs can be probed at future proton-proton (pp) colliders and Hyper-Kamiokande experiment. For with GUT scale MGUT≤1.0×1016 GeV, probe dimension-six proton decay via heavy gauge boson exchange Moreover, for MGUT≥1.0×1016 study...

Background: Recent studies in eye plaque brachytherapy have shown a considerable difference between the dosimetric results using water phantom and a model of human eye containing realistic materials. In spite of this fact, there is a lack of simulation studies based on such a model in proton therapy literatures. In the presented work, the effect of utilizing an eye model with ocular media on pr...

Metal-organic frameworks (MOFs) are emerging material class for the past few years due to its tailorability characteristics for various applications. However, the research and development (R&D) of MOFs is still scarce for fuel cell system. This may be due to the several difficulties faced in selecting a good MOFs-based electrolyte, which consequently affects both proton conduction and methanol ...

Journal: :molecular biology research communications 2014
mohsen jam abbas alemzadeh ali mohammad tale sara esmaeili-tazangi

the present study was conducted to find the effect of three heavy metals, ag, hg and pb on the expression level of a gene encoding plasma membrane h+-atpase in aeluropus littoralis. the experiment was laid out in a completely random design with three replications. the expression of the main gene was normalized to the expression of the housekeeping gene actin. two 259 and 187 bp fragments were a...

Fateme Maroufkhani Seyed Mohammad Mahdi Abtahi

Introduction: Proton therapy is newer therapeutic method for early stage breast cancer. Proton beams release most of their energy in the Bragg peak and then will be a rapid decline in their end. When protons interact with matter, produce secondary particles like neutrons and gammas, and these unwanted radiation has no beneficial effect and also is believed to increase the risk ...

ژورنال: سنجش و ایمنی پرتو 2018

Proton therapy is a common form of external radiation therapy based on the manipulation of Bragg peak of this beam, it can treat the tumor by delivering high levels of doses to it, while protecting surrounding healthy tissues against radiation. In this work, the dose distribution of proton and secondary particles such as neutrons, photons, electrons and positrons in gastric cancer proton therap...

ژورنال: شیمی کاربردی 2018

Poly(methyl methacrylate-co-nitrophenyl maleimide) (MMA-co-NMI) and poly(methyl‌‌‌‌ methacrylate-co-hydroxyphenyl maleimide)‌‌‌‌‌ (MMA-co-HMI) copolymers were synthesized using free radical polymerization of MMA with a new MI monomer containing phenyl and –NO2 groups. Proton exchange membrane fuel cell(PEMFC) were prepared using these copolymers as membrane matrix and phosphotungstic acid (PWA)...

E. Zahedi H. Aghaie K. Zare M. R. Zardoost S. R. Emamian

In order to find the susceptibility of the Claisen rearrangement and next proton shift reaction of ally) aryl etherto the substiment effects in pan position, the kinetic and the:rmodynamie parameters are calculated at The33 LTP level using 6-3110. b asis set. The calculated activation energies for the rearrangements and protonshift reactions are around 3133 kcaUmol and 52.16 kcal/mol, nap.. liv...

2017
Joanne L Parker Chenghan Li Allete Brinth Zhi Wang Lutz Vogeley Nicolae Solcan Gregory Ledderboge-Vucinic Jessica M J Swanson Martin Caffrey Gregory A Voth Simon Newstead

POT transporters represent an evolutionarily well-conserved family of proton-coupled transport systems in biology. An unusual feature of the family is their ability to couple the transport of chemically diverse ligands to an inwardly directed proton electrochemical gradient. For example, in mammals, fungi, and bacteria they are predominantly peptide transporters, whereas in plants the family ha...

1999
YONGSEOK OH

The possible existence of hidden strangeness in the nucleon has been one of the most controversial problems in hadron physics. Some experimental results have been interpreted as signatures of hidden strangeness of the nucleon, but it has been also claimed that these experiments could be understood with little or null strangeness in the nucleon. It will be interesting, therefore, to study other ...

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