4,563 research outputs found

    Aplikasi Game Mewarnai dengan Macromedia Flash 8

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    Scientific writing is about the making of Game edutaintment.yang intended forchildren age play group, kindergarten and elementary school children in grade 1,many included images that allows users colored objects in coloredgambar.Game consists of two core components. The first component is thechoice of colors, usually displayed with the color blocks and objects whichbecome targets coloring and added sound notification on every color. Incompleting this writing, the author approached by reading books, articles andbrowse the Internet to get as much information so it can be used to solve theproblem in this writing

    Double bundle arthroscopic Anterior Cruciate Ligament reconstruction with remnant preserving technique using a hamstring autograft

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    <p>Abstract</p> <p>Background</p> <p>Preservation of the Anterior Cruciate Ligament (ACL) remnant is important from the biological point of view as it enhances revascularization, and preserves the proprioceptive function of the graft construct. Additionally, it may have a useful biomechanical function. Double bundle ACL reconstruction has been shown to better replicate the native ACL anatomy and results in better restoration of the rotational stability than single bundle reconstruction.</p> <p>Methods</p> <p>We used the far anteromedial (FAM) portal for creation of the femoral tunnels, with a special technique for its preoperative localization using three dimensional (3D) CT. The central anteromedial (AM) portal was used to make a longitudinal slit in the ACL remnant to allow visualization of the tips of the guide pins during anatomical creation of the tibial tunnels within the native ACL tibial foot print. The use of curved hemostat allow retrieval of the wire loop from the apertures of the femoral tunnels through the longitudinal slit in the ACL remnant thereby, guarding against impingement of the reconstruction graft against the ACL remnant as well as the roof of the intercondylar notch.</p> <p>Conclusion</p> <p>Our technique allows for anatomical double bundle reconstruction of the ACL while maximally preserving the ACL remnant without the use of intra-operative image intensifier.</p

    Pulmonary injury after cardiopulmonary bypass: Beneficial effects of low-frequency mechanical ventilation

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    ObjectivePulmonary dysfunction is a frequent postoperative complication after cardiac surgery with cardiopulmonary bypass, and atelectasis is thought to be one of the main causes. The aim of this study was to evaluate whether low-frequency ventilation and continuous positive airway pressure during cardiopulmonary bypass reduce postcardiopulmonary bypass lung injury.MethodsEighteen Yorkshire pigs were subjected to 120 minutes of cardiopulmonary bypass (1 hour of cardioplegic arrest) followed by 90 minutes of recovery before being sacrificed. Six animals served as control with the endotracheal tube open to atmosphere during cardiopulmonary bypass. The remaining animals were divided into 2 groups of 6: One group received continuous positive airway pressure of 5 cm H2O, and one group received low-frequency ventilation (5/minutes) during cardiopulmonary bypass. Lung tissue biopsy and bronchoalveolar lavage samples were obtained before and 90 minutes after discontinuation of cardiopulmonary bypass for measurement of adenine nucleotide (adenosine-5′-triphosphate, adenosine diphosphate, adenosine monophosphate), lactate dehydrogenase, DNA levels, and histology. Hemodynamic data and arterial blood gases were also collected through the study.ResultsThe hemodynamic parameters were similar in the 3 groups. After cardiopulmonary bypass, the low-frequency ventilation group showed significantly better oxygen tension and alveolar arterial oxygen gradient, higher adenine nucleotide, lower lactate dehydrogenase levels, and reduced histologic damage in lung biopsy, as well as lower DNA levels in bronchoalveolar lavage compared with the control group. The continuous positive airway pressure group showed only significantly reduced lactate dehydrogenase levels compared with control.ConclusionLow-frequency ventilation during cardiopulmonary bypass in a pig experimental model reduces tissue metabolic and histologic damage in the lungs and is associated with improved postoperative gas exchange

    Study of the Gauge Mediation Signal with Non-pointing Photons at the CERN LHC

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    In this paper we study the gauge mediation signal with the ATLAS detector at the CERN LHC. We focus on the case where the NLSP is the long-lived lightest neutralino (χ~10\tilde{\chi}^0_1) which decays dominantly into a photon (γ\gamma) and a gravitino (G~\tilde{G}). A non-pointing photon from the neutralino decay can be detected with good position and time resolutions by the electormagnetic calorimeter (ECAL), while the photon momentum would be precisely measured if the photon is converted inside the inner tracking detector before reaching the ECAL. A new technique is developed to determine the masses of the slepton (ℓ~\tilde{\ell}) and the neutralino from events with a lepton and a converted non-pointing photon arising from the cascade decay ℓ~→ℓχ~10→ℓγG~\tilde{\ell}\to \ell\tilde{\chi}^0_1\to \ell\gamma \tilde{G}. A Monte Carlo simulation at a sample point shows that the masses would be measured with an error of 3% for O\cal{O}(100) selected ℓγ\ell\gamma pairs. Once the sparticle masses are determined by this method, the decay time and momentum of the neutralino are solved using the ECAL data and the lepton momentum only, for all ℓγ\ell\gamma pairs without the photon conversion. We estimate the sensitivity to the neutralino lifetime for cτ=10c\tau=10 cm to O\cal{O}(10) m.Comment: 19 page, 7 figures, revte

    π\piNN coupling and two-pion photoproduction on the nucleon

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    Effects of non-resonant photoproductions arising from two different πNN\pi NN couplings are investigated in the γN→ππN\gamma N\to\pi\pi N reaction. We find that the pseudoscalar (PS) πNN\pi NN coupling is generally preferable to the pseudovector (PV) πNN\pi NN coupling and particularly the total cross sections are successfully described by the model with the PS πNN\pi NN coupling. In order to see the difference between the two couplings, we also show the results of invariant mass spectra and helicity-dependent cross sections in various isospin channels calculated with the PS and PV couplings.Comment: 35 pages, 11 figures, minor changes and version to be published in Phys.Rev.

    On the background in the γp→ω(π0γ)p\gamma p \to \omega(\pi^0\gamma) p reaction and mixed event simulation

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    In this paper we evaluate sources of background for the γp→ωp\gamma p \to \omega p, with the ω\omega detected through its π0γ\pi^0 \gamma decay channel, to compare with the experiment carried out at ELSA. We find background from γp→π0π0p\gamma p \to \pi^0 \pi^0 p followed by decay of a π0\pi^0 into two γ\gamma, recombining one π0\pi^0 and one γ\gamma, and from the γp→π0ηp\gamma p \to \pi^0 \eta p reaction with subsequent decay of the η\eta into two photons. This background accounts for the data at π0γ\pi^0 \gamma invariant masses beyond 700 MeV, but strength is missing at lower invariant masses which was attributed to photon misidentification events, which we simulate to get a good reproduction of the experimental background. Once this is done, we perform an event mixing simulation to reproduce the calculated background and we find that the method provides a good description of the background at low π0γ\pi^0 \gamma invariant masses but fakes the background at high invariant masses, making background events at low invariant masses, which are due to γ\gamma misidentification events, responsible for the background at high invariant masses which is due to the γp→π0π0p\gamma p \to \pi^0 \pi^0 p and γp→π0ηp\gamma p \to \pi^0 \eta p reactions.Comment: 10 pages, 5 figure
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