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We investigate the contributions of the Cartan generators in the static potentials for various representations in the framework of the domain model of center vortices for SU(3) gauge theory. Using the center domains with the cores corresponding to only one Cartan generator H8, already given as a particular proposal, leads to some concavities in the potentials for higher representations. Furthermore, the string tension of the fundamental representation is the same at Casimir scaling and N-ality regimes. We add the contribution of the other Cartan generator H3 to the potentials and therefore these shortcomings can be eliminated. However, we discuss that at intermediate range of distances the potentials induced by only H8 agree with the Casimir scaling better than those corresponding to both Cartan generators., 10 pages, 8 figures, accepted for publication in International Journal of Modern Physics A

We analyze the static potentials for various representations in SU($3$) Yang-Mills theory within the framework of the domain model of center vortices. The influence of vortex interactions is investigated on the static potentials. We show that, by ad-hoc choosing the probability weights of the different vortex configurations contributing to the static potential, a phenomenologically satisfactory result for the different representations can be achieved. In particular including vacuum domains, a way to effectively parametrize vortex interactions, is crucial in obtaining an (almost) everywhere convex potential when interpolating between the short distances and the asymptotic regimes., 12 pages, 11 figures, accepted by Physical Review D

We study the correlations between center vortices and Abelian monopoles for SU($3$) gauge group. Combining fractional fluxes of monopoles, center vortex fluxes are constructed in the thick center vortex model. Calculating the potentials induced by fractional fluxes constructing the center vortex flux in a thick center vortex-like model and comparing with the potential induced by center vortices, we observe an attraction between fractional fluxes of monopoles constructing the center vortex flux. We conclude that the center vortex flux is stable, as expected. In addition, we show that adding a contribution of the monopole-antimonopole pairs in the potentials induced by center vortices ruins the Casimir scaling at intermediate regime., Comment: 11 pages, 11 figures, Version accepted for publication in Nucl. Phys. B

We investigate plane vortices with color structure. The topological charge and gauge action of such colorful plane vortices are studied in the continuum and on the lattice. These configurations are vacuum to vacuum transitions changing the winding number between the two vacua, leading to a topological charge $Q=-1$ in the continuum. After growing temporal extent of these vortices, the lattice topological charge approaches $-1$ and the index theorem is fulfilled. We analyze the low lying modes of the overlap Dirac operator in the background of these colorful plane vortices and compare them with those of spherical vortices. They show characteristic properties for spontaneous chiral symmetry breaking., 15 pages, 14 figures

In this paper, we study the role of the domain structure of the Yang Mills vacuum. The Casimir scaling and $N$-ality are investigated in the potentials between static sources in various representations for $SU(2)$ and $SU(3)$ gauge groups based on the domain structure model using square ansatz for angle $\alpha_{C}(x)$. We also discuss about the contributions of the vacuum domain and center vortices in the static potentials. As a result, the potentials obtained from vacuum domains agree with Casimir scaling better than the ones obtained from center vortices. The reasons of these observations are investigated by studying the behavior of the potentials obtained from vacuum domains and center vortices and the properties of the group factors. Then, the vacuum domains in $SU(N)$ and $G(2)$ gauge groups are compared and we argue that the $G(2)$ vacuum is filled with center vortices of its subgroups., Comment: 27 pages, 17 figures, Resolutions of two figures are improved to conform to the version published in JHEP

The thick center vortex model is applied to G(2) gauge group to obtain the potentials between static sources of the fundamental and adjoint representations. The group G(2) has only one trivial center element and therefore it does not have any vortices which are defined based on non trivial center elements. To obtain the potential from the thick center vortex model, the idea of the vacuum domain structure is used. The intermediate string tensions from this model are in rough agreement with the G(2) lattice results and the Casimir ratio. We argue that the SU(3) subgroup of G(2) may be responsible for the linear potential at the intermediate distances., Comment: 3 pages, 3 figures; talk given at the conference "Quark Confinement and the Hadron Spectrum IX", Madrid, Spain, 30th of August-3rd of September 2010; submitted to the proceedings, References added

Introduction: Presenting services with high quality in emergency department has its significant due to its specific conditions. Prerequisite of presenting effective health services is to evaluate and compare them with predetermined standards. According to the importance of hospital's emergency in increasing patients' satisfaction and improving clinical services' quality, this survey has been done with aim of analysis the emergency department of Noor and Ali Asghar hospitals according to new format of accreditation standards. Materials and Methods: This survey is a descriptive research which has been done in Noor and Ali Asghar Hospital, in Isfahan and in 2011. The research tool for gathering information is a checklist which has been prepared from the emergency standards of health, therapy, and medical education. Data has been gathered from related documents and corporation of internal, poisoning, and men and women psychiatric emergencies. In order to data analyzing, Statistical Package for Social Sciences (SPSS) and Excel software have been used and the state of hospital's emergencies compared with each other. Findings: The finding of the present research shows that in management and organizing part with maximum grade of 34, the maximum point belongs to internal emergency department (26 point); in human power management with maximum point of 244, the maximum point belongs to internal emergency department (145 point); in equipment and supplies with maximum point of 78, the maximum point belongs to poisoning emergency department (66 point); in security, quality improvement, and data gathering with maximum point of 390, belongs to poisoning emergency department (252 point) and internal emergency department (250 point), and women and men psychiatric emergency department (242 point) achieved the most highest scores. Discussion and Conclusion: The results show that because of the ease of poisoning emergency availability to paraclinic's services, the highest point is related to this part. The cause of the significance difference in management and manpower management is related to the lack of policy and method of working in emergency departments. So forming the meetings and holding educational courses with the processes' owners are very useful in policy and methods making.