Quaternionic eigenvalue problem

We discuss the (right) eigenvalue equation for $\mathbb{H}$, $\mathbb{C}$ and $\mathbb{R}$ linear quaternionic operators. The possibility to introduce an isomorphism between these operators and real/complex matrices allows to translate the quaternionic problem into an {\em equivalent} real or complex counterpart. Interesting applications are found in solving differential equations within quaternionic formulations of quantum mechanics.Comment: 13 pages, AMS-Te

An Analytic Approach to the Wave Packet Formalism in Oscillation Phenomena

We introduce an approximation scheme to perform an analytic study of the oscillation phenomena in a pedagogical and comprehensive way. By using Gaussian wave packets, we show that the oscillation is bounded by a time-dependent vanishing function which characterizes the slippage between the mass-eigenstate wave packets. We also demonstrate that the wave packet spreading represents a secondary effect which plays a significant role only in the non-relativistic limit. In our analysis, we note the presence of a new time-dependent phase and calculate how this additional term modifies the oscillating character of the flavor conversion formula. Finally, by considering Box and Sine wave packets we study how the choice of different functions to describe the particle localization changes the oscillation probability.Comment: 16 pages, 7 figures, AMS-Te

On the limited amplitude resolution of multipixel Geiger-mode APDs

The limited number of active pixels in a Geiger-mode Avalanche Photodiode (G-APD) results not only in a non-linearity but also in an additional fluctuation of its response. Both these effects are taken into account to calculate the amplitude resolution of an ideal G-APD, which is shown to be finite. As one of the consequences, the energy resolution of a scintillation detector based on a G-APD is shown to be limited to some minimum value defined by the number of pixels in the G-APD.Comment: 5 pages, 3 figure

Kuat Tarik Tidak Langsung Asphalt Concerete Binder Course (AC-BC) Menggunakan Pasir Alam Kampar

In Specification of Bina Marga 2010, natural sand can be used as fine aggregate not more than 15% the mixture of total weight. In some areas, especially in the watershed area, it is easy to find natural sand rather than sand or fine aggregate of crushed stone screening, because there is no need crushing process. It just takes to sieved to obtain the size we need. Flexible pavement construction consists of layers were deposited on land that has been compacted which has function to receive traffic load and spread it to the layer below. The impact of load on the traffic so there are tensile stress on pavement, therefore the pavement is expected to has enough strength of sufficient tensile to hold it. The tensile strength can be used as a parameter for assessing the performance of asphalt concrete. This research is to determine the effect of the use on natural sand and how many percent of the optimum sand content obtained in the asphalt mixture type AC-BC by doing indirect tensile strength test. In this research the variation of the fine aggregate type of sand that used is 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35%, and 40% of the total weight of the mixture of aggregate. The results of this research showed that the addition of natural sand on the mixture would increase the tensile strength up to 20% variation in natural sand. Optimum natural sand content (ONSC) for asphalt concrete mix type AC-BC based on the indirect tensile strength test was 20% and the optimum bitument content (OBC) based on the indirect tensile strength test was 6%

Assessment of obesity management in medical examination

Obesity is a growing international health problem that has already reached epidemic proportions, particularly within the United States where a majority of the population is overweight or obese. Effective methods of treatment are needed, and should be taught to physicians by efficient means. There exists a disconnect between the rising obesity prevalence with its high toll on medical resources, and the lack of obesity education provided to practitioners in the course of their training. One particular shortfall is the lack of representation of obesity on standardized medical examinations. Physician attitudes toward obesity are influenced by their lack of familiarity with the management of the disease. This may include dietary restriction, increasing physical activity, behavior modification, pharmacotherapy, and surgical interventions. Thus, curricular changes in the medical education of obesity could help reduce morbidity and mortality associated with this disease

Analisis Dana Dekonsentrasi dan Dana APBD Sektor Pendidikan di Provinsi Jawa Tengah 2003 -2011

Deconcentration a grant from central government to the regions to help increase local government programs are still a central concern: education, health, infrastructure, and others. Deconcentration fund is part of central government expenditure, which consists deconcentration of personnel expenditure, spending on goods, and social assistance.This study aims to analyze the allocation of deconcentration and demonstrate empirically difference deconcentration funds and funds from the budget of the school dropout rate in the province of Central Java. Study of this research uses quantitative data, the type of time series data. Time series data are used from the period 2003-2011. Analysis tools used are different test, to see the difference in the concentration funds and the absence of deconcentration funds with funds from the budget for education and educational development from year to year.Results of the study showed that the concentration funds allocated to primary education, secondaryeducation, early childhood education. The largest allocations to basic education about 90%, different test results indicate that the presence or absence of deconcentration deconcentration has no difference with funds from the province expenditure of the school dropout rate in the province of Central Java

Independent ferroelectric contributions and rare-earth-induced polarization reversal in multiferroic TbMn2O5

Three independent contributions to the magnetically induced spontaneous polarization of multiferroic TbMn2O5 are uniquely separated by optical second harmonic generation and an analysis in terms of Landau theory. Two of them are related to the magnetic Mn3+/4+ order and are independent of applied fields of up to 7 T. The third contribution is related to the long-range antiferromagnetic Tb3+ order. It shows a drastic decrease upon the application of a magnetic field and mediates the change of sign of the spontaneous electric polarization in TbMn2O5. The close relationship between the rare-earth long-range order and the non-linear optical properties points to isotropic Tb-Tb exchange and oxygen spin polarization as mechanism for this rare-earth induced ferroelectricity.Comment: 8 pages, 5 figure

Large- N expansion for unitary superfluid Fermi gases

We analyze strongly interacting Fermi gases in the unitary regime by considering the generalization to an arbitrary number N of spin- 1 2 fermion flavors with Sp (2N) symmetry. For N→ this problem is exactly solved by the Bardeen-Cooper-Schrieffer-Bose-Einstein condensate mean-field theory, with corrections small in the parameter 1 N. The large- N expansion provides a systematic way to determine corrections to mean-field predictions, allowing the calculation of a variety of thermodynamic quantities at (and in proximity to) unitarity, including the energy, the pairing gap, and the upper-critical polarization (in the case of a polarized gas) for the normal to superfluid instability. For the physical case of N=1, among other quantities, we predict in the unitarity regime, the energy of the gas to be ξ=0.28 times that for the noninteracting gas and the pairing gap to be 0.52 times the Fermi energy. © 2007 The American Physical Society