By using the density matrix renormalization group method, we investigate groundand excited-state properties of the eg-orbital degenerate Hubbard model at quarter filling for two kinds of lattices, zigzag chain and ladder. In the zigzag chain, the system is effectively regarded as a decoupled double chain of the S=1/2 antiferromagnetic Heisenberg model, and the spin gap is approximately zero, si...

The beated controversy over "citizen participation," "citizen conuol," and "maximum feasible involvement of the poor," has been waged largely in ( enDS of exacerbated rhetoric and misleading euphemislDS. To encourage a more enlightened dialogue, a typology of citizen participation is offered using examples from three federal social programs: urban renewal. antipoverty, and Model Cities. The typ...

We show that non-frustrated and frustrated ladders in a magnetic field can be systematically mapped onto an XXZ Heisenberg model in a longitudinal magnetic field in the limit where the rung coupling is the dominant one. This mapping is valid in the critical region where the magnetization goes from zero to saturation. It allows one to relate the properties of the critical phase (H c , H 2 c , th...

We have studied the ground-state phase diagram of a two-leg spin ladder with anisotropic ferromagnetic leg couplings under the influence of a symmetry-breaking transverse magnetic field by the exact diagonalization technique. In the case of antiferromagnetic coupling between legs we identified two phase transitions in the plane of magnetic field versus interchain coupling strength. The first co...

The ground state and low lying excitation of the spin 1/2 Heisenberg ladder with antiferromagnetic leg (J) and ferromagnetic rung (−λJ, λ > 0) interaction is studied by means of the density matrix renormalization group method. It is found that the state remains in the Haldane phase even for small λ ∼ 0.02 suggesting the continuous transition to the gapless phase at λ = 0. The critical behavior ...

X Mei-Chen Lo, Ming-Hong Chen, Wen-Sen Lee, Chin-I Lu, Chuang-Rung Chang, Shu-Huei Kao,* and Horng-Mo Lee* Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan; School of Medical Laboratory Sciences and Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan; Department of Pathology, Saint Paul’s Hospi...

The traditional reconstructive ladder has withstood the test of time, serving as a thought paradigm to guide surgeons in choosing their method of wound closure for an assortment of defects. Advances in anatomical understanding and technological innovations have improved our ability to achieve definitive closure in a wide variety of patients. In this article, the older construct is updated to re...

The top shows current source amplifiers used with a loop array, the bottom shows ultra-low output impedance amplifiers used with a partially decoupled rung array. The current source amplifiers provide higher levels of decoupling, but are unable to generate as much current as the ultra-low output impedance amplifiers. 7333 A Comparison of Isolating Amplifier Architectures Neal Hollingsworth, Kat...

Q-rung orthopair uncertain linguistic sets (q-ROULSs) are a powerful tool for describing ambiguity and uncertainty of information. In this study, considering that in most multi-attribute group decision making (MAGDM) problems, not only the quantitative evaluation information makers but also qualitative opinions should be considered. Therefore, we develop novel MAGDM method with unknown attribut...

Women make up at least 50.8% of the United States population, and 46.8% are in professional workforce per Census Quick Facts from 2016. Department Labor, n.d.). Despite making half women only represent 26% managing roles workforce. In 2019 study, “Women Workplace 2019”, McKinsey & Company found to still lag corporate America areas salary gaps, promotions due broken rung, glass ceilings, lac...