A model of nonlinear DNA-protein interaction system with Cornell potential and its stability

<p class="Abstract">The purpose of this study was to determine the model of a interaction system between the DNA with protein. The interaction system consisted of a molecule of protein bound with a single chain of DNA. The interaction between DNA chain, especially adenine and thymine, and DNA-protein bound to glutamine and adenine. The forms of these bonds are adapted from the hydrogen bonds. The Cornell potential was used to describe both of the interactions. We proposed the Hamiltonian equation to describe the general model of interaction. Interaction system is divided into three parts. The interaction model is satisfied when a protein molecule triggers pulses on a DNA chain. An initial shift in position of protein xm should trigger the shift in position of DNA ym, or alter the state. However, an initial shift in DNA, yn, should not alter the state of a rest protein (i.e. xm = 0), otherwise, the protein would not steadily bind. We also investigated the stability of the model from the DNA-protein interaction with Lyapunov function. The stability of system can be determined when we obtained the equilibrium point.</p>

Analytical solution of energy eigen value, eigen function and angular wave function of Dirac equation with Rosen Morse plus Rosen Morse potential in terms of Romanovski polynomials for exact spin symmetry

<p class="Abstract">The energy eigenvalues and eigenfunctions of Dirac equation for Rosen Morse plus Rosen Morse potential are investigated numerically in terms of finite Romanovsky Polynomial. The bound state energy eigenvalues are given in a closed form and corresponding eigenfunctions are obtained in terms of Romanovski polynomials. The energi eigen value is solved by numerical method with Matlab 2011.</p>

Fault detection using neural network

<p class="Abstract">Fault detection technique using neural networks have been successfully applied to a seismic data volume. This technique is basically creating a volume that highlights faults by combining the information from several fault indicators attributes (i.e. similarity, curvature and energy) into fault occurrence probability. This is performed by training a neural network on two sets of attributes extracted at sample locations picked manually - one set represents the fault class and the other represents the non-fault class. The next step is to apply the trained artificial neural network on the seismic data. Result indicates that faults are more highlighted and have better continuity since the surrounding noise are mostly suppressed. </p>

Implementation method experiments on student results on substances being material and its amendment in class VII SMP Negeri 22

<p class="Abstract">The aims of this research were to know: (1) the average student learning outcomes in states of matter and changes the material that is taught by an experimental method in class VII SMP Negeri 22 Pontianak; (2) the average student laerning outcomes in states of matter and changes the material that is taught by conventional method in class VII SMP Negeri 22 Pontianak; (3) the average difference in student learning outcomes given the experimental method to the average student learning outcomes given conventional methods in states of matter and changes the material in class VII SMP Negeri 22 Pontianak . This research was a quasi-experimental design with Nonequivalent Control Group Design. The study population was all students of class VII SMP Negeri 22 Pontianak which consists of five classes, namely class VII A, VII B, VII C, VII D and E VII academic year 2015/2016, with a sampling technique that cluster random sampling. Based on the results of class VII A<a class="r021x1x42O7 " title="Click to Continue &gt; by Not set" href="#43308853"> lottery<img src="https://cdncache-a.akamaihd.net/items/it/img/arrow-10x10.png" alt="" /></a> was chosen as an experimental class and class VII D as the control class. The data collection technique used is the technique of measurement. Data collection tool used is a form of essay test. The hypothesis was tested using the t-test. Based on the results of data analysis can be concluded that: (1) the average student learning outcomes in states of matter and changes the material that is taught by an experimental method in class VII SMP Negeri 22 Pontianak is 64.96, (2) the average student learning outcomes in material states of matter and the changes that are taught by conventional methods in class VII SMP Negeri 22 Pontianak is 49.85, and (3) there are differences in the average student learning outcomes given the experimental method to the average student learning outcomes given in the conventional method material phase transition and changes in class VII SMP Negeri 22 Pontianak.</p>

Fabrication of dye Rhoeospathacea with concentration variation in dye-sensitized solar cells (DSSC)

<p class="Abstract">Dye-sensitized solar cell (DSSC) is a device that directly converts visible light into electrical energy. In this work we used dye was extracted from Rhoeo spathacea. A natural dye was directly mixed with TiO₂anatase to obtain <em>dyed titanium dioxide</em> which can be used as photoanode for DSSC by varying the volume of dye. The first variation is 2 ml dye mixed with 1 ml of TiO₂, and the second variation is 3 ml dye mixed with 1 ml of TiO₂. The absorbance spectra of the dye and dye titanium dioxide have been investigated by spectroscopy UV-<em>Visible Lambda </em>25 and the conversion efficiency of dye titanium dioxide used Keithley 2602A meter. The DSSC based on dye titanium dioxide with varying volume of dye showed that the efficiency of the the second variation is 0,033% which is higher than the first variation (0,023%) as obtained from I-V characterization.</p><p class="Abstract"> </p>

Analytical solution of Klein Gordon equation Trigonometric Pӧschl-Teller potential using asymptotic iteration method

<p class="Abstract">Radial part of Klein Gordon equation for trigonometric Pӧschl-Teller potential was obtained within framework of a centrifugal term approximation. The relativistic energy spectrum and wave functions was obtain by using asymptotic iteration method. The value of relativistic energy was calculated numerically using Matlab 2013. The results showed that the relativistic energy is increasing due to the increase of potential constant and quantum number.</p>

Polarization anisotropy in light propagation inside opal-based photonic crystals

<p class="Abstract">Photonic crystals is expected to be the backbone of future optical integrated circuits. To realize this goal, light propagation and interaction with matters must be understood and controlled. In this work, we investigate the propagation of light inside opal-based photonic crystals along certain paths at the edge of its Brillouin Zone. Opal films made of polystyrene particles were prepared using self-assembly approach, the capillary deposition method. The structures and the optical properties of the resulting opals were characterized using scanning electron microscopy and polarization-resolved spectroscopy, respectively. The opal films have a face-centered cubic structure consisting of two domains showing preferential orientations. Domains in the form of ABC and ACB-type fcc crystals are oriented along the growth direction of the opal films. Light with frequencies near optical band gap shows a strong anisotropy. Light propagation inside opals depends on the polarization of the incident light. The intensity and the width of the extinction peaks for p-polarized incident light differ significantly from those of s-polarized light. The anisotropy disappears at frequencies above the optical band gap. The anisotropic light propagation is related to the strong anisotropy in equifrequency surface of band structure around the band gap. The shift of the extinction peaks and the variation of intensity of the extinction peaks will be discussed using the combination of kinematic and simplified dynamical diffraction theory.</p>

Force concept inventory (FCI) representation of high school students (SMA & MA)

<p class="Abstract">There have been profiling the level of understanding of physics concept (dynamics and kinematics) of students' (SMA and MA) in madiun region. Profiling is done by using the Force Concept Inventory test. Samples were taken from 120 students from SMA and MA in Madiun and Ponorogo. The results indicate that FCI test number 23 and number 16 is the most answered incorrectly by the students. Problem number 23 related to kinematics and test number 16 on Newton's third law. Only 24.16% of students answered correctly test numbers 23 and 25% of students answered correctly test number 16. Students SMA and MA do not understand the concept well and can’t represent concept in another shapes. These results provide an indication that the learning concept needs to be implementation at SMA and MA.</p>

The second Maxwell’s relativistic equations of a rapidaly rotating neutron star, based on ZAMO framework (zero angular momentum observers)

<p class="Abstract">The second Maxwell’s relativistic equations of a rapidaly rotating neutron star, based on ZAMO framework (Zero Angular Momentum Observers) has been formulated. The formulations obtained were epresented by differential equations in the radial, polar, and azimuthal components. The ZAMO basis is implemented because the neutron star reviewed as a rotating star. The second Maxwell’s equation is important to use as one of the fundamental equations to formulate relativistic magnetic fields dynamics of the neutron stars that rotate rapidly.</p>

Application of problem based learning model to learning outcomes of student in light matter in the class VIII SMP Negeri 1 Ledo kabupaten Bengkayang

<p class="Abstract">This study aims to determine: (1) student learning outcomes after application of the model Problem Based Learning on the material light in class VIII SMP Negeri 1 Ledo Bengkayang, (2) student learning outcomes after application of conventional learning models on the material light in class VIII SMP Negeri 1 Ledo Bengkayang, and (3) a comparison between student learning outcomes after application of Problem Based learning and conventional learning models in light of the material in class VIII SMP Negeri 1 Ledo Bengkayang. This study design is Nonequivalent Groups Post-Test Only Design. The study population was all students of class VIII SMP Negeri 1 Ledo consisting of four classes, namely class VIII A, VIII B, C VIII and VIII D. The research sample was determined by random cluster sampling technique and obtained a class VIII A as the experimental class and class VIII C as the control class. The data collection technique used is the technique of measurement, with the data collection tool is test description. The hypothesis was tested using the t test of the parties. Based on the analysis concluded that: (1) the average student learning outcomes after application of the model Problem Based Learning on light material in class VIII SMP Negeri 1 Ledo Bengkayang is 73.24, (2) student learning outcomes after application of conventional learning model in the light of the material in class VIII SMP Negeri 1 Ledo Bengkayang is 69.82, and (3) student learning outcomes after application of the model Problem Based learning is better than the student learning outcomes after application of conventional learning models in light of the material in class VIII SMP Negeri 1 Ledo Bengkayang</p><p class="Keyword"> </p>