1,125 research outputs found

    Analisis Penyebab Kesulitan Belajar Komputer Akuntansi pada Siswa Kelas XI Akuntansi Smk Nurul Falah Pekanbaru

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    Abstrac : This study aimed to determine what factors are the cause of accounting computer learning difficulties in class XI Accounting student of SMK Nurul Falah Pekanbaru. The study lasted from July to December 2015. The population in this study were all students of class XI Accounting SMK Nurul Falah Pekanbaru totaling 58 students. The sampling technique is purposive sampling sample selection based on consideration of the particular destination where consideration is the student who can not do the work according to the schedule at least 3 times totaling 35 students. Data collection instruments used were questionnaires were processed using semantic differential scale with variable depender: learning difficulties (Y); independent variables: internal factors (X1) and external factors (X2). From the results it can be concluded that based on the results of descriptive analysis 89.98% of the students agreed to external factors and 73.16% agree to internal factors so that external factors more influential in causing learning difficulties accounting computer in class XI student of SMK Nurul Falah Accounting Pekanbaru. The same is indicated by the results of the t test where t test result of external factors 2.907> 2.78 t internal factors

    Derivation of the blackfold effective theory

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    We study fluctuations and deformations of black branes over length scales larger than the horizon radius. We prove that the Einstein equations for the perturbed p-brane yield, as constraints, the equations of the effective blackfold theory. We solve the Einstein equations for the perturbed geometry and show that it remains regular on and outside the black brane horizon. This study provides an ab initio derivation of the blackfold effective theory and gives explicit expressions for the metrics near the new black holes and black branes that result from it, to leading order in a derivative expansion.Comment: 20 pages. v4: Typo corrected in eq. (6.11) -- erratum in the published versio

    Pengaruh Pembiayaan Pendidikan dan Sarana Pembelajaran terhadap Prestasi Belajar Siswa pada Mata Pelajaran Ekonomi di SMA Negeri 11 Pekanbaru

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    This research is aimed to know the influence of education funding and means of learning on students learning achievement of class XI IPS in SMA Negeri 11 Pekanbaru. The method used in this research was quantitative descriptive method. The population in this research was all of students in class XI IPS in SMA Negeri 11 Pekanbaru that has 142 peoples. Determination of the total sample used simple random sampling technique, which has 59 students. The data used were the primary data through the spread of questionnaire and the secondary data through the second semester grades of economics in academic year 2013/2014. The data analysis technique used was multiple linear regression. Based on the research results, it could be concluded that the education funding and means of learning influence the students learning achievement both partially or simultaneously. The influence of education funding and means of learning on students learning achievement in class XI IPS SMA Negeri 11 Pekanbaru was 40,2%.bstract: This research is aimed to know the influence of education funding and means of learning on students learning achievement of class XI IPS in SMA Negeri 11 Pekanbaru. The method used in this research was quantitative descriptive method. The population in this research was all of students in class XI IPS in SMA Negeri 11 Pekanbaru that has 142 peoples. Determination of the total sample used simple random sampling technique, which has 59 students. The data used were the primary data through the spread of questionnaire and the secondary data through the second semester grades of economics in academic year 2013/2014. The data analysis technique used was multiple linear regression. Based on the research results, it could be concluded that the education funding and means of learning influence the students learning achievement both partially or simultaneously. The influence of education funding and means of learning on students learning achievement in class XI IPS SMA Negeri 11 Pekanbaru was 40,2%

    Thermal Giant Gravitons

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    We study the giant graviton solution as the AdS_5 X S^5 background is heated up to finite temperature. The analysis employs the thermal brane probe technique based on the blackfold approach. We focus mainly on the thermal giant graviton corresponding to a thermal D3-brane probe wrapped on an S^3 moving on the S^5 of the background at finite temperature. We find several interesting new effects, including that the thermal giant graviton has a minimal possible value for the angular momentum and correspondingly also a minimal possible radius of the S^3. We compute the free energy of the thermal giant graviton in the low temperature regime, which potentially could be compared to that of a thermal state on the gauge theory side. Moreover, we analyze the space of solutions and stability of the thermal giant graviton and find that, in parallel with the extremal case, there are two available solutions for a given temperature and angular momentum, one stable and one unstable. In order to write down the equations of motion, action and conserved charges for the thermal giant graviton we present a slight generalization of the blackfold formalism for charged black branes. Finally, we also briefly consider the thermal giant graviton moving in the AdS_5 part.Comment: v1: 32 pages + 11 pages appendices, 13 figures, v2: typos fixed in Sec.2 and other misprints, references adde

    Seletividade de produtos fitossanitários utilizados na cultura do pessegueiro aos predadores Chrysoperla externa (Hagen, 1861) (Neuroptera: Chrysopidae) e Coleomegilla quadrifasciata (Schöenherr, 1808) (Coleoptera: Coccinellidae).

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    Dissertação (Mestrado) - Programa de Pós-Graduação em Fitossanidade, Universidade Federal de Pelotas, Pelotas. Orientador: Anderson Dionei Grützmacher Co-Orientador: Dori Edson Nava

    Passive odd viscoelasticity

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    Active chiral viscoelastic materials exhibit elastic responses perpendicular to the applied stresses, referred to as odd elasticity. We use a covariant formulation of viscoelasticity combined with an entropy production analysis to show that odd elasticity is not only present in active systems but also in broad classes of passive chiral viscoelastic fluids. In addition, we demonstrate that linear viscoelastic chiral solids require activity in order to manifest odd elastic responses. To model the phenomenon of passive odd viscoelasticity we propose a chiral extension of Jeffreys model. We apply our covariant formalism in order to derive the dispersion relations of hydrodynamic modes and obtain clear imprints of odd viscoelastic behavior

    Uniqueness and nonuniqueness of the stationary black holes in 5D Einstein-Maxwell and Einstein-Maxwell-dilaton gravity

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    In the present paper we investigate the general problem of uniqueness of the stationary black solutions in 5D Einstein-Maxwell-dilaton gravity with arbitrary dilaton coupling parameter containing the Einstein-Maxwell gravity as a particular case. We formulate and prove uniqueness theorems classifying the stationary black hole solutions in terms of their interval structure, electric and magnetic charges and the magnetic fluxes. The proofs are based on the nonpositivity of the Riemann curvature operator on the space of the potentials which imposes restrictions on the dilaton coupling parameter.Comment: 21 pages, LaTe

    M2-M5 blackfold funnels

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    We analyze the basic M2-M5 intersection in the supergravity regime using the blackfold approach. This approach allows us to recover the 1/4-BPS self-dual string soliton solution of Howe, Lambert and West as a three-funnel solution of an effective fivebrane worldvolume theory in a new regime, the regime of a large number of M2 and M5 branes. In addition, it allows us to discuss finite temperature effects for non-extremal self-dual string soliton solutions and wormhole solutions interpolating between stacks of M5 and anti-M5 branes. The purpose of this paper is to exhibit these solutions and their basic properties.Comment: 19 pages, 5 figures, harvmac; typo corrected in equation (3.19
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