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The native tachykinins cod neurokinin A and cod substance P, serotonin and acetylcholine have excitatory effects on the circular smooth muscle of the cod intestine. Furthermore, immunoreactivities to the cod tachykinins, serotonin and two markers for cholinergic neurones, viz. choline acetyltransferase and vesicular acetylcholine transporter, have been… (More)

- Omid Akhavan, Hesam Arfaie, Farhad Ardalan, Reza Mansouri, Jalal Samimi, Hamid Sala-Mati As +74 others
- 2003

ii To my mother, who has been with me every day of my life and to my wife Eli, who gave me l♥ve iii In the memory of our beloved friend and colleague the late Dr. Majid Abolhasani, who gave me some useful comments on the foundations of quantum mechanics, and was my initial encourager for working on quantum information theory. iv Acknowledgements It is a… (More)

Many experimental studies, over the past two decades, have constantly reported a critical behavior for the transition from the smectic- A phase of liquid crystals to the hexatic- B phase with non- XY critical exponents. However, according to symmetry arguments this transition must belong to the XY universality class. Using an optimized Monte Carlo… (More)

- Reihaneh Kouhi, Farhad Shahbazi, Meisam Akbarzadeh
- 2016

We investigate the speed time series of the vehicles recorded by a camera at a section of a highway in the city of Isfahan, Iran. Using k-means clustering algorithm, we find that the natural number of clustering for this set of data is 3. This is in agreement with the three-phase theory of uninterrupted traffic flows. According to this theory, the three… (More)

For several decades the physical mechanism underlying discrete dark noise of photoreceptors in the eye has remained highly controversial and poorly understood. It is known that the Arrhenius equation, which is based on the Boltzmann distribution for thermal activation, can model only a part (e.g. half of the activation energy) of the retinal dark noise… (More)

We present an exactly solvable extension of the quantum XY chain with longer range multi-spin interactions. Topological phase transitions of the model are classified in terms of the number of Majorana zero modes, nM which are in turn related to an integer winding number, nW. The present class of exactly solvable models belong to the BDI class in the… (More)

These errors have been corrected in both the HTML and PDF versions of the Article. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not… (More)

It is known that the Arrhenius equation, based on the Boltzmann distribution, can model only a part (e.g. half of the activation energy) for retinal discrete dark noise observed for vertebrate rod and cone pigments. Luo et al (Science, 332, 1307-312, 2011) presented a new approach to explain this discrepancy by showing that applying the Hinshelwood… (More)

A small-world (SW) network of similar phase oscillators, interacting according to the Kuramoto model, is studied numerically. It is shown that deterministic Kuramoto dynamics on SW networks has various stable stationary states. This can be attributed to the so-called defect patterns in an SW network, which it inherits from deformation of helical patterns in… (More)

The Kardar-Parisi-Zhang (KPZ) equation in (1+1) dimensions dynamically develops sharply connected valley structures within which the height derivative is not continuous. We develop a statistical theory for the KPZ equation in (1+1) dimensions driven with a random forcing that is white in time and Gaussian-correlated in space. A master equation is derived… (More)

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