5,905 research outputs found

    Pengelompokan Kabupaten/Kota di Provinsi Jawa Timur Berdasarkan Indikator Pendidikan SMA/SMK/MA dengan Metode C-Means dan Fuzzy C-Means

    Full text link
    Di Provinsi Jawa Timur memiliki beberapa komponen indikator pendidikan. Beberapa komponen yang masuk dalam indikator pendidikan di Jawa Timur yaitu Angka Partisipasi Murni, Angka Partisipasi Kasar, Angka Transisi, Angka Putus Sekolah, Angka Murid Mengulang, Angka Lulusan, Rasio Murid/Ruang Belajar, Rasio Kelas/Ruang Belajar, Rasio Murid/Guru dan Rasio Murid/Sekolah. Salah satu parameter keberhasilan pendidikan adalah menuntaskan APK dan APM mutu pendidikan hingga minimal mencapai 95%.Berdasarkan parameter tersebut pendidikan di Jawa Timur masih belum maksimal apabila ditinjau berdasarkan jenjang pendidikan formal khususnya pada jenjang pendidikan SMA/SMK/MA.Berdasarkan informasi yang telah didapat, penelitian ini dilakukan untuk mengetahui kabupaten/kota mana sajakah yang dapat dikelompokkan berdasarkan tingkat kemiripan berdasarkan indikator pendidikan SMA/SMK/MA di Provinsi Jawa Timur dengan menggunakan metode c-means dan fuzzy c-means. Pada kasus ini metodec-means memiliki kinerja yang hampir sama dengan metode fuzzy c-means. Hal ini berdasarkan perbandingan nilai icdrate yang hanya memiliki nilai selisih sebesar 0,001

    Kecelakaan Kerja pada Pekerja Konstruksi Informal di Kelurahan “X” Kota Samarinda

    Get PDF
    Industri konstruksi menempati peringkat pertama pekerjaan paling berbahaya serta penyumbang tingginya angka kecelakaan kerja baik di dunia maupun di Indonesia. Secara umum kecelakaan kerja disebabkanUnsafe Act dan Unsafe Condition. Penelitian ini bertujuan untuk menganalisis hubungan perilaku tidak aman dan kondisi tidak aman dengan kejadian kecelakaan kerja pada pekerja konstruksi informal di Kelurahan X Samarinda. Penelitian survei analitik dengan pendekatancross sectional telah dilakukan bulan Maret - Mei 2015 pada 40 orangpekerja. Variabel bebas terdiri dari perilaku pekerja tidak aman dan kondisi kerja tidak aman, sementara variabel terikat adalah kecelakaan kerja. Alat ukur penelitian menggunakan kuesioner yang disusun mengacu pada Loss Causation Model dan telah teruji cukup valid dan reliabel. Analisa data menggunakan uji chi square dengan batas kemaknaan α = 0,05. Disimpulkan ada hubungan unsafe act dan unsafe condition dengan kecelakaan kerja dengan p value masing-masing 0.038 dan 0.026. Jenis tindakan tidak aman yang paling banyak dilakukan adalah posisi kerja berbahaya, menjalankan mesin dengan kecepatan yang membahayakan dan serta mengangkat/mengangkut dengan cara yang salah, sedangkan kondisi tidak aman terdiri dari kelayakan dan kerapihan tempat kerja, pelindung/pembatas tidak layak, kondisi APD tidak layak, sistem peringatan yang tidak memadai dan bahaya kebakaran

    Animal-assisted pedagogy:human-animal bond, developmental benefits and practical considerations

    Get PDF
    Abstract. In recent years, animal-assisted pedagogy (AAP) has gained more attention both in the media and in the educational field. Some schools and libraries have seemed to include animals as a common support in the learning process. This has sparked interest also in educational research, and thus the effects of animals as a part of education have been studied more closely. For this reason, we aim to provide insight to AAP with a literature review that explores this topic from the points of view of human-animal bond, the developmental benefits, and the practical considerations related to it. In addition, we aspire to challenge our own views of AAP and discuss how it might be brought into practice. Based on our research, the human-animal bond is a mutually beneficial relationship that takes place between a human and an animal. Its significance in society and the multitude of benefits it offers, provide a good foundation from which to view AAP. Implementing AAP positively affects the social and emotional competences and motivation of students by the support of the comfort of the animal’s presence, which enables positive experiences and interactions. The animals help to create a safe space that allows the students to feel more confident and secure, and as a result the motivation of learning increases. However, it appears that applying AAP to practice is quite challenging due to the amount of limitations and consideration of bringing an animal into a working environment. For example, allergies, fears and lack of resources may dictate whether it is possible for an educator to practice AAP

    Spin Susceptibility and Gap Structure of the Fractional-Statistics Gas

    Full text link
    This paper establishes and tests procedures which can determine the electron energy gap of the high-temperature superconductors using the t ⁣ ⁣Jt\!-\!J model with spinon and holon quasiparticles obeying fractional statistics. A simpler problem with similar physics, the spin susceptibility spectrum of the spin 1/2 fractional-statistics gas, is studied. Interactions with the density oscillations of the system substantially decrease the spin gap to a value of (0.2±0.2)(0.2 \pm 0.2) ωc\hbar \omega_c, much less than the mean-field value of ωc\hbar\omega_c. The lower few Landau levels remain visible, though broadened and shifted, in the spin susceptibility. As a check of the methods, the single-particle Green's function of the non-interacting Bose gas viewed in the fermionic representation, as computed by the same approximation scheme, agrees well with the exact results. The same mechanism would reduce the gap of the t ⁣ ⁣Jt\!-\!J model without eliminating it.Comment: 35 pages, written in REVTeX, 16 figures available upon request from [email protected]

    Morphological image analysis for classification of gastrointestinal tissues using optical coherence tomography

    Get PDF
    Computer-aided diagnosis of ophthalmic diseases using optical coherence tomography (OCT) relies on the extraction of thickness and size measures from the OCT images, but such defined layers are usually not observed in emerging OCT applications aimed at "optical biopsy" such as pulmonology or gastroenterology. Mathematical methods such as Principal Component Analysis (PCA) or textural analyses including both spatial textural analysis derived from the two-dimensional discrete Fourier transform (DFT) and statistical texture analysis obtained independently from center-symmetric auto-correlation (CSAC) and spatial grey-level dependency matrices (SGLDM), as well as, quantitative measurements of the attenuation coefficient have been previously proposed to overcome this problem. We recently proposed an alternative approach consisting of a region segmentation according to the intensity variation along the vertical axis and a pure statistical technology for feature quantification. OCT images were first segmented in the axial direction in an automated manner according to intensity. Afterwards, a morphological analysis of the segmented OCT images was employed for quantifying the features that served for tissue classification. In this study, a PCA processing of the extracted features is accomplished to combine their discriminative power in a lower number of dimensions. Ready discrimination of gastrointestinal surgical specimens is attained demonstrating that the approach further surpasses the algorithms previously reported and is feasible for tissue classification in the clinical setting

    Surface Geometry of C60 on Ag(111)

    Get PDF
    The geometry of adsorbed C60 influences its collective properties. We report the first dynamical low-energy electron diffraction study to determine the geometry of a C60 monolayer, Ag(111)-(23×23)30°-C60, and related density functional theory calculations. The stable monolayer has C60 molecules in vacancies that result from the displacement of surface atoms. C60 bonds with hexagons down, with their mirror planes parallel to that of the substrate. The results indicate that vacancy structures are the rule rather than the exception for C60 monolayers on close-packed metal surfaces. © 2009 The American Physical Society

    A 96-well format for a high-throughput baculovirus generation, fast titering and recombinant protein production in insect and mammalian cells

    Get PDF
    <p>Abstract</p> <p>Background</p> <p>Baculovirus expression vector system (BEVS) has become a standard in recombinant protein production and virus-like particle preparation for numerous applications.</p> <p>Findings</p> <p>We describe here protocols which adapt baculovirus generation into 96-well format.</p> <p>Conclusion</p> <p>The established methodology allows simple baculovirus generation, fast virus titering within 18 h and efficient recombinant protein production in a high-throughput format. Furthermore, the produced baculovirus vectors are compatible with gene expression in vertebrate cells <it>in vitro </it>and <it>in vivo</it>.</p

    Pseudo-spin canting transition in bilayer quantum Hall ferromagnets: a self-charging capacitor

    Full text link
    For sufficiently strong in-plane magnetic field a νT=1\nu_T=1 bilayer quantum Hall pseudo-ferromagnet is expected to exhibit a soliton lattice. For sufficiently close layers and large in-plane field, we predict this incommensurate ``planar'' phase PIP_I to undergo a reentrant pseudo-spin canting transition to an incommensurate state CIC_I, with a finite out-of-plane pseudo-magnetization component, corresponding to an interlayer charge imbalance in regions between solitons. At T>0T>0 the transition is in the 2d compressible Ising universality class, and at T=0, the quantum transition is in heretofore unexplored universality class. The striking experimental signatures are the universal nonlinear charge-voltage and in-plane field relations, and the divergence of the differential bilayer capacitance at the transition, resulting in a bilayer capacitor that spontaneously charges itself, even in the absence of an applied interlayer voltage.Comment: 4 RevTeX pgs, 1 eps figures, submitted to PR

    Incommensurate ground state of double-layer quantum Hall systems

    Full text link
    Double-layer quantum Hall systems possess interlayer phase coherence at sufficiently small layer separations, even without interlayer tunneling. When interlayer tunneling is present, application of a sufficiently strong in-plane magnetic field B>BcB_\parallel > B_c drives a commensurate-incommensurate (CI) transition to an incommensurate soliton-lattice (SL) state. We calculate the Hartree-Fock ground-state energy of the SL state for all values of BB_\parallel within a gradient approximation, and use it to obtain the anisotropic SL stiffness, the Kosterlitz-Thouless melting temperature for the SL, and the SL magnetization. The in-plane differential magnetic susceptibility diverges as (BBc)1(B_\parallel - B_c)^{-1} when the CI transition is approached from the SL state.Comment: 12 pages, 7 figures, to be published in Physical Review
    corecore