Hubungan Tingkat Pengetahuan Dan Dukungan Suami Terhadap Kunjungan Antenatal Care Di Wilayah Kerja Puskesmas Perumnas II

Latar belakang: Angka Kematian Ibu di Indonesia masih cukup tinggi dimana angkanya cenderung meningkat pada tahun 2012. Penyebab AKI dapat diturunkan dan dicegah melalui pemberian asuhan kehamilan yang rutin dan berkualitas untuk mendeteksi secara dini adanya kelainan dan komplikasi. Tingkat pengetahuan dan dukungan suami memiliki peran penting untuk memberikan dorongan bagi ibu agar semakin aktif memeriksakan kehamilannya ke tenaga kesehatan. Tujuan: 1. Mengetahui hubungan tingkat pengetahuan ibu hamil beserta suami terhadap kunjungan antenatal care. 2. Mengetahui hubungan dukungan suami terhadap kunjungan antenatal care. Metodologi: Penelitian observasional analitik dengan pendekatan cross sectional. Jumlah sampel 80 responden ibu hamil dan 80 responden suami. Analisa data menggunakan chi square, jika tidak memenuhi syarat maka menggunakan kolmogorov smirnov. Hasil: 1. Hubungan tingkat pengetahuan ibu hamil terhadap kunjungan antenatal care p=0,015 (0,05). 3. Hubungan dukungan suami dari sudut pandang ibu hamil dan suami masing-masing p=0,003 dan p=0,012 (<0,05

Spin Tunneling, Berry phases and Doped Antiferromagnets

Interference effects between Berry phase factors in spin tunneling systems have been discussed in recent Letters by Loss, DiVincenzo and Grinstein and von Delft and Henley. This Comment points out that Berry phases in spin tunneling are important in another interesting case: the two dimensional doped antiferromagnet. I show that the dispersion of a single hole in the t-J model changes sign as $e^{2\pi s}$ where $s$ is the size of the spins. This provides an interpretation of the numerical results for the s=\half model, and a prediction for other spin sizes.Comment: 5 pages, LaTe

Floquet Spectrum and Transport Through an Irradiated Graphene Ribbon

Graphene subject to a spatially uniform, circularly-polarized electric field supports a Floquet spectrum with properties akin to those of a topological insulator, including non-vanishing Chern numbers associated with bulk bands and current-carrying edge states. Transport properties of this system however are complicated by the non-equilibrium occupations of the Floquet states. We address this by considering transport in a two-terminal ribbon geometry for which the leads have well-defined chemical potentials, with an irradiated central scattering region. We demonstrate the presence of edge states, which for infinite mass boundary conditions may be associated with only one of the two valleys. At low frequencies, the bulk DC conductivity near zero energy is shown to be dominated by a series of states with very narrow anticrossings, leading to super-diffusive behavior. For very long ribbons, a ballistic regime emerges in which edge state transport dominates.Comment: 4.2 pages, 3 figure

Modifications structurales de deux sols ferrallitiques du nord-ouest de la Côte d'Ivoire sous l'effet du piétinement par l'homme

Etude des effets du piétinement par l'homme sur la structure des horizons de surface de deux sols ferrallitiques du nord-ouest de la Côte d'Ivoir

Valence-bond-solid order in antiferromagnets with spin-lattice coupling

We propose that a valence-bond-solid (VBS) order can be stabilized in certain two-dimensional antiferromagnets due to spin-lattice coupling. In contrast to the VBS state of the Affleck-Kennedy-Lieb-Tesaki (AKLT) type in which the spin $2S$ and the lattice coordination $z$ must be commensurate, the spin-lattice coupling-induced VBS state can occur when $2S$ is not an integer multiple of $z$. As a concrete example, S=2 spins on the triangular network with $z=6$ is discussed. Within the Schwinger boson mean-field theory it is shown that the ground state is given by the $\sqrt{3}\times\sqrt{3}$ modulation of the valence bond amplitudes for sufficiently strong spin-lattice coupling. Using the corresponding AKLT wave function, we work out the excitation spectrum for this state within the single-mode approximation. The calculated spectrum should provide a new type of collective mode which is distinct from the spin wave excitations of the magnetically ordered ground state

Oscillating Superfluidity of Bosons in Optical Lattices

We follow up on a recent suggestion by C. Orzel et. al., Science, 291, 2386 (2001), whereby bosons in an optical lattice would be subjected to a sudden parameter change from the Mott to the superfluid phase. We analyze the Bose Hubbard model with a modified coherent states path integral which can escribe - both - phases. The saddle point theory yields collective oscillations of the uniform superfluid order parameter. These would be seen in time resolved interference patterns made by the released gas. We calculate the collective oscillation's damping rate by phason pair emission. In two dimensions the overdamped region largely overlaps with the quantum critical region. Measurements of critical dynamics on the Mott side are proposed.Comment: 4 pages 1 eps figures; Final version as appears in PRL. Added discussion on spontaneous generation of vortice

Gambaran Kadar Serum Serum Glutamic Oxaloacetic Transaminase (Sgot) Pada Perokok Aktif Usia > 40 Tahun

: Smoking has become habit and lifestyle for most of the people in daily life. Negative effects of smoking are abundant and no limit at all. Three dangerous compounds in cigarette could cause damage to liver and heart. When liver and heart cells damaged, Serum Glutamic Oxaloacetic Transaminase (SGOT) enzyme releases in blood and became an indicator of liver and heart damage. The purpose of this study was to identify the level of SGOT serum of smokers aged > 40 years old. Twenty eight smokers were eligible to this criteria and participated in this study. Cross sectional design with a descriptive method was employed in this study. Sanples were analysed in laboratory for SGOT serum levels. Research results showed that all respondents participated in the present study had a normal serum SGOT. It can be concluded that serum SGOT level of > 40 years old smokers in Kolombo village, West Bitung 2 were all normal

Domain Patterns in the Microwave-Induced Zero-Resistance State

It has been proposed that the microwave-induced ``zero-resistance'' phenomenon, observed in a GaAs two-dimensional electron system at low temperatures in moderate magnetic fields, results from a state with multiple domains, in which a large local electric field \bE(\br) is oriented in different directions. We explore here the questions of what may determine the domain arrangement in a given sample, what do the domains look like in representative cases, and what may be the consequences of domain-wall localization on the macroscopic dc conductance. We consider both effects of sample boundaries and effects of disorder, in a simple model, which has a constant Hall conductivity, and is characterized by a Lyapunov functional.Comment: 19 pages, 5 figures; submitted to a special issue of Journal of Statistical Physics, in honor of P. C. Hohenberg and J. S. Lange

Polarization transitions in interacting ring 1D arrays

Periodic nanostructures can display the dynamics of arrays of atoms while enabling the tuning of interactions in ways not normally possible in Nature. We examine one dimensional arrays of a ``synthetic atom,'' a one dimensional ring with a nearest neighbor Coulomb interaction. We consider the classical limit first, finding that the singly charged rings possess antiferroelectric order at low temperatures when the charge is discrete, but that they do not order when the charge is treated as a continuous classical fluid. In the quantum limit Monte Carlo simulation suggests that the system undergoes a quantum phase transition as the interaction strength is increased. This is supported by mapping the system to the 1D transverse field Ising model. Finally we examine the effect of magnetic fields. We find that a magnetic field can alter the electrostatic phase transition producing a ferroelectric groundstate, solely through its effect of shifting the eigenenergies of the quantum problem.Comment: 12 pages in two column format, 18 figure