76 research outputs found

    THE EFFECT OF ORGANIZATIONAL CLIMATE AND SCHOOL’S CULTURE ON TEACHERS’ PROFESSIONAL PERFORMANCE IN PALEMBANG, INDONESIA

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    The teacher's professional performance is very important to be considered and evaluated because the teacher carries out professional assignments. This study aims to determine: the magnitude of the influence of organizational climate on teacher professional performance, the magnitude of the influence of school culture on teacher professional performance and the magnitude of the influence of organizational climate and school culture on teacher professional performance. The research approach used is descriptive quantitative. The magnitude of the effect of the X1 variable on Y is 30.05%, the effect of the variable X2 on Y is 37.8% and the effect of variables X1 and X2 on Y is 40.1%. The conclusion: 1) organizational climate has a significant effect on teacher professional performance; 2) school culture has a significant effect on teacher professional performance; 3) the organizational climate and school culture together have a significant effect on the professional performance of Muhammadiyah High School Palembang teachers.  Article visualizations

    Menjadikan Mata Kuliah Pendidikan Pancasila sebagai Media Penanaman Nilai-nilai Bela Negara

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    National defense is not only to maintain the unity of the Republic of Indonesia, but it must be realized in real life to create critical, loyality, and determination of the nation. This study aimed at finding out the efforts to build the value of defending nation through the Education of Pancasila in Universitas PGRI Palembang. The method used was qualitative case study. The techniques used for collecting data were interview, documentation, observation and literature review. The data collection, data reduction, data presentation, and conclusions were analyzed simultaneously and interactively by using qualitative analysis. The result of this research stated that (1) the students of Universitas PGRI Palembang still had limited knowledge about the values of nation defense, (2) the students did not have critical attitude towards the problems around them, (3) the students had low achievement in motivation. The efforts done by Universitas PGRI Palembang in handling with these problems were fostering: (1) the values of love of the nation (2) fostering the value of national and state awareness, (3) fostering the values of Pancasila as the ideology of the nation, 4) the value of loyalty to the nation, (5) the knowledge of nation defense, and (6) the spirit of achievement as a reflection of the love of the nation

    Bethe ansatz solution of zero-range process with nonuniform stationary state

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    The eigenfunctions and eigenvalues of the master-equation for zero range process with totally asymmetric dynamics on a ring are found exactly using the Bethe ansatz weighted with the stationary weights of particle configurations. The Bethe ansatz applicability requires the rates of hopping of particles out of a site to be the qq-numbers [n]q[n]_q. This is a generalization of the rates of hopping of noninteracting particles equal to the occupation number nn of a site of departure. The noninteracting case can be restored in the limit q→1q\to 1. The limiting cases of the model for q=0,∞q=0,\infty correspond to the totally asymmetric exclusion process, and the drop-push model respectively. We analyze the partition function of the model and apply the Bethe ansatz to evaluate the generating function of the total distance travelled by particles at large time in the scaling limit. In case of non-zero interaction, q≠1q \ne 1, the generating function has the universal scaling form specific for the Kardar-Parizi-Zhang universality class.Comment: 7 pages, Revtex4, mistypes correcte

    Charge Frustration Effects in Capacitively Coupled Two-Dimensional Josephson-Junction Arrays

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    We investigate the quantum phase transitions in two capacitively coupled two-dimensional Josephson-junction arrays with charge frustration. The system is mapped onto the S=1 and S=1/2S=1/2 anisotropic Heisenberg antiferromagnets near the particle-hole symmetry line and near the maximal-frustration line, respectively, which are in turn argued to be effectively described by a single quantum phase model. Based on the resulting model, it is suggested that near the maximal frustration line the system may undergo a quantum phase transition from the charge-density wave to the super-solid phase, which displays both diagonal and off- diagonal long-range order.Comment: 6 pages, 6 figures, to appear in Phys. Rev.

    Equilibrium shapes and faceting for ionic crystals of body-centered-cubic type

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    A mean field theory is developed for the calculation of the surface free energy of the staggered BCSOS, (or six vertex) model as function of the surface orientation and of temperature. The model approximately describes surfaces of crystals with nearest neighbor attractions and next nearest neighbor repulsions. The mean field free energy is calculated by expressing the model in terms of interacting directed walks on a lattice. The resulting equilibrium shape is very rich with facet boundaries and boundaries between reconstructed and unreconstructed regions which can be either sharp (first order) or smooth (continuous). In addition there are tricritical points where a smooth boundary changes into a sharp one and triple points where three sharp boundaries meet. Finally our numerical results strongly suggest the existence of conical points, at which tangent planes of a finite range of orientations all intersect each other. The thermal evolution of the equilibrium shape in this model shows strong similarity to that seen experimentally for ionic crystals.Comment: 14 Pages, Revtex and 10 PostScript figures include

    The Conical Point in the Ferroelectric Six-Vertex Model

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    We examine the last unexplored regime of the asymmetric six-vertex model: the low-temperature phase of the so-called ferroelectric model. The original publication of the exact solution, by Sutherland, Yang, and Yang, and various derivations and reviews published afterwards, do not contain many details about this regime. We study the exact solution for this model, by numerical and analytical methods. In particular, we examine the behavior of the model in the vicinity of an unusual coexistence point that we call the ``conical'' point. This point corresponds to additional singularities in the free energy that were not discussed in the original solution. We show analytically that in this point many polarizations coexist, and that unusual scaling properties hold in its vicinity.Comment: 28 pages (LaTeX); 8 postscript figures available on request ([email protected]). Submitted to Journal of Statistical Physics. SFU-DJBJDS-94-0

    Professor C. N. Yang and Statistical Mechanics

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    Professor Chen Ning Yang has made seminal and influential contributions in many different areas in theoretical physics. This talk focuses on his contributions in statistical mechanics, a field in which Professor Yang has held a continual interest for over sixty years. His Master's thesis was on a theory of binary alloys with multi-site interactions, some 30 years before others studied the problem. Likewise, his other works opened the door and led to subsequent developments in many areas of modern day statistical mechanics and mathematical physics. He made seminal contributions in a wide array of topics, ranging from the fundamental theory of phase transitions, the Ising model, Heisenberg spin chains, lattice models, and the Yang-Baxter equation, to the emergence of Yangian in quantum groups. These topics and their ramifications will be discussed in this talk.Comment: Talk given at Symposium in honor of Professor C. N. Yang's 85th birthday, Nanyang Technological University, Singapore, November 200

    Formation and Interaction of Membrane Tubes

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    We show that the formation of membrane tubes (or membrane tethers), which is a crucial step in many biological processes, is highly non-trivial and involves first order shape transitions. The force exerted by an emerging tube is a non-monotonic function of its length. We point out that tubes attract each other, which eventually leads to their coalescence. We also show that detached tubes behave like semiflexible filaments with a rather short persistence length. We suggest that these properties play an important role in the formation and structure of tubular organelles.Comment: 4 pages, 3 figure

    Eating behaviour and retro-nasal aroma release in normal-weight and overweight adults: a pilot study

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    Eating rate and bite size are important factors affecting food intake, and we hypothesise the underlying role of oral sensory exposure in this. However, the latter currently lacks objective measuring parameters, but an interesting measure could be the extent of in vivo retronasal aroma release. Second, the literature is ambiguous about overweight subjects differing from normal-weight subjects in eating behaviour. Consequently, we investigated: (1) whether eating behaviour (food intake, eating rate, bite size, number of bites and meal duration) relates to weight status and (2) whether the extent of retro-nasal aroma release relates to eating behaviour and weight status. A matched group (sex, age and dietary restraint) of twenty-seven normal-weight (BMI 21.8 (SD 1.6) kg/m(2)) and twenty-seven overweight/obese subjects (BMI 30.5 (SD 5.8) kg/m(2)) consumed a spiced rice meal and apple pie yogurt on separate test days. The extent of retro-nasal aroma release was measured on a third test day. Mean bite size for spiced rice was significantly (P=0.03) larger in overweight/obese (10.3 (SD 3.2) g) v. normal-weight subjects (8.7 (SD 2.1) g). There were no other significant differences in eating behaviour or retro-nasal aroma release between the groups. Eating behaviours were not correlated with BMI or retro-nasal aroma release. Subjects showed consistent eating behaviour for both test products. Eating behaviour might be a characteristic of an individual but not by definition a characteristic for a group of people based on their weight. Given the large sample sizes, necessary according to a posteriori sample size calculations, one needs to consider the relevance of finding a statistically significant difference in eating behaviour between the weight groups in a laboratory setting

    Extended Universality of the Surface Curvature in Equilibrium Crystal Shapes

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    We investigate the universal property of curvatures in surface models which display a flat phase and a rough phase whose criticality is described by the Gaussian model. Earlier we derived a relation between the Hessian of the free energy and the Gaussian coupling constant in the six-vertex model. Here we show its validity in a general setting using renormalization group arguments. The general validity of the relation is confirmed numerically in the RSOS model by comparing the Hessian of the free energy and the Gaussian coupling constant in a transfer matrix finite-size-scaling study. The Hessian relation gives clear understanding of the universal curvature jump at roughening transitions and facet edges and also provides an efficient way of locating the phase boundaries.Comment: 19 pages, RevTex, 3 Postscript Figures, To appear in Phys. Rev.
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