915 research outputs found

    Analisis Kemungkinan Kebangrutan Berbasis Pendekatan Model Z-Score Altman Dan Metode EVA Pada PT X Di Provinsi Kepulauan Bangka Belitung

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    PT X has a regional office in Bangka Belitung Island Province which has been decrease in sales, increase in credit and inventory which may lead to insolvency. The purposes of this research was (1) to analyze the financial performance of PT X to learn factors affecting insolvency possibilities; (2) to analyze company condition that indicate insolvency possibilities; (3) to analyze the added values which could be given by the company in an insolvency possibility; (4) to analyze the relation of added values that had been given by the company with insolvent condition possibility. The primary data were gathered by interview. Secondary data consisted of financial reports, journal literatures, thesis, and related books. The data were processed through descriptive analysis, financial ratio, Z-score Altman model, and EVA method. Based on the descriptive analysis result, PT X was suffering a possibility of bankruptcy that may affect firm value which was also decrease. The financial ratio showed that cash ratio, operational profit margin, inventory cycle, credit cycle ratio, assets cycle ratio were decrease, DER and DAR were decreasing from 2010 until 2012, but it roused significantly in 2013 and turned back to decrease significantly on 2014. The result form Z-Score model showed that the company was in gray area in 2011, the company condition went better in 2012, but it went back to gray area in 2013-2014. The EVA result showed that PT X produced positive and decreased in EVA value from 2010 until 2014

    Harga Diri Dan Interaksi Sosial Pada Remaja Panti Asuhan Dan Remaja Yang Tinggal Bersama Keluarga Di Kabupaten Purbalingga

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    Remaja memiliki kebutuhan yang tinggi untuk dapat diterima oleh kawan sebayanya, melalui kebutuhan tersebut terciptalah interaksi sosial. Komunikasi merupakan syarat terjadinya interaksi sosial, individu yang memiliki harga diri rendah akan mengalami kesulitan untuk mengomunikasikan gagasanya kepada orang-orang disekitar sehingga berpengaruh pada kemampuan interaksi sosial individu. Lingkungan dapat mempengaruhi tingkah laku individu termasuk salah satunya adalah interaksi sosial. Penelitian ini memiliki dua tujuan. Penelitian ini menggunakan harga diri sebagai variabel predictor dan interaksi sosial sebagai variabel kriterium. Tujuan penelitian ini adalah untuk melihat hubungan antara harga diri dan interaksi sosial pada remaja. Subjek dalam penelitian ini adalah remaja yang tinggal di panti asuhan dan tinggal bersama keluarga dengan kisaran usia 11-24 tahun. Jumlah sampel dalam penelitian ini adalah 349 remaja yang dipilih menggunakan teknik sampling cluster sampling. Analisis yang digunakan dalam penelitian ini menggunakan uji regresi linear sederhana dan uji beda independent t-test. Berdasarkan analisis statistik menggunakan uji regresi linear sederhana diperoleh koefisien korelasi sebesar 0,656 dengan p=0,000 (p < 0,05). Nilai koefisien korelasi menunjukan adanya hubungan antara harga diri dan interaksi sosial pada remaja

    Tropical Pacific spatial trend patterns in observed sea level: internal variability and/or anthropogenic signature?

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    In this study we focus on the sea level trend pattern observed by satellite altimetry in the tropical Pacific over the 1993–2009 time span (i.e. 17 yr). Our objective is to investigate whether this 17-yr-long trend pattern was different before the altimetry era, what was its spatio-temporal variability and what have been its main drivers. We try to discriminate the respective roles of the internal variability of the climate system and of external forcing factors, in particular anthropogenic emissions (greenhouse gases and aerosols). On the basis of a 2-D past sea level reconstruction over 1950–2009 (based on a combination of observations and ocean modelling) and multi-century control runs (i.e. with constant, preindustrial external forcing) from eight coupled climate models, we have investigated how the observed 17-yr sea level trend pattern evolved during the last decades and centuries, and try to estimate the characteristic time scales of its variability. For that purpose, we have computed sea level trend patterns over successive 17-yr windows (i.e. the length of the altimetry record), both for the 60-yr long reconstructed sea level and the model runs. We find that the 2-D sea level reconstruction shows spatial trend patterns similar to the one observed during the altimetry era. The pattern appears to have fluctuated with time with a characteristic time scale of the order of 25–30 yr. The same behaviour is found in multi-centennial control runs of the coupled climate models. A similar analysis is performed with 20th century coupled climate model runs with complete external forcing (i.e. solar plus volcanic variability and changes in anthropogenic forcing). Results suggest that in the tropical Pacific, sea level trend fluctuations are dominated by the internal variability of the ocean–atmosphere coupled system. While our analysis cannot rule out any influence of anthropogenic forcing, it concludes that the latter effect in that particular region is stillhardly detectable

    The Use of Socratic Seminar in Teaching Speaking on Hortatory Exposition Text

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    This research was conducted to the eleventh grade students of SMA Negeri 2 Pontianak in academic year 2013/2014. The purposes are to know whether or not the use of Socratic Seminar technique effective in teaching speaking on hortatory exposition text and to know how significant the effectiveness of the use of Socratic Seminar is in improving students\u27 speaking on hortatory exposition text. A Quasi-experimental with non-equivalent control group design was used by the writer as the research method. Cluster sampling is the technique sampling and the samples of this research were class IPA 3 as the experimental group and class IPA 4 as the control group. The computation of t-test is higher than t-table, thereforethe alternative hypothesis is accepted. The effect size of the treatment was 0.99 and it was qualified as very strong. The results of this research arethe Socratic Seminar technique is effective andstrong effect toward students\u27 speaking achievement

    XMM-Newton observation of the brightest X-ray flare detected so far from SgrA*

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    We report the high S/N observation on October 3, 2002 with XMM-Newton of the brightest X-ray flare detected so far from SgrA* with a duration shorter than one hour (~ 2.7 ks). The light curve is almost symmetrical with respect to the peak flare, and no significant difference between the soft and hard X-ray range is detected. The overall flare spectrum is well represented by an absorbed power-law with a soft photon spectral index of Gamma=2.5+/-0.3, and a peak 2-10 keV luminosity of 3.6 (+0.3-0.4) x 10^35 erg/s, i.e. a factor 160 higher than the Sgr A* quiescent value. No significant spectral change during the flare is observed. This X-ray flare is very different from other bright flares reported so far: it is much brighter and softer. The present accurate determination of the flare characteristics challenge the current interpretation of the physical processes occuring inside the very close environment of SgrA* by bringing very strong constraints for the theoretical flare models.Comment: Accepted for publication in A&A Letters. 4 pages, 2 figures, 1 table

    t \bar{t} W production and decay at NLO

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    We present results for the production of a top pair in association with a W-boson at next-to-leading order. We have implemented this process into the parton-level integrator MCFM including the decays of both the top quarks and the W-bosons with full spin correlations. Although the cross section for this process is small, it is a Standard Model source of same-sign lepton events that must be accounted for in many new physics searches. For a particular analysis of same-sign lepton events in which b-quarks are also present, we investigate the effect of the NLO corrections as a function of the signal region cuts.Comment: 10 pages, 7 figure

    Stationarity, soft ergodicity, and entropy in relativistic systems

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    Recent molecular dynamics simulations show that a dilute relativistic gas equilibrates to a Juettner velocity distribution if ensemble velocities are measured simultaneously in the observer frame. The analysis of relativistic Brownian motion processes, on the other hand, implies that stationary one-particle distributions can differ depending on the underlying time-parameterizations. Using molecular dynamics simulations, we demonstrate how this relativistic phenomenon can be understood within a deterministic model system. We show that, depending on the time-parameterization, one can distinguish different types of soft ergodicity on the level of the one-particle distributions. Our analysis further reveals a close connection between time parameters and entropy in special relativity. A combination of different time-parameterizations can potentially be useful in simulations that combine molecular dynamics algorithms with randomized particle creation, annihilation, or decay processes.Comment: 4 page

    A cool disk in the Galactic Center?

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    We study the possibility of a cool disk existing in the Galactic Center in the framework of the disk-corona evaporation/condensation model. Assuming an inactive disk, a hot corona should form above the disk since there is a continuous supply of hot gas from stellar winds of the close-by massive stars. Whether the cool disk can survive depends on the mass exchange between the disk and corona. If the disk-corona interaction is dominated by evaporation and the rate is larger than the Bondi accretion rate in the Galactic Center, the disk will be depleted within a certain time period and no persistent disk will exist. On the other hand, if the interaction results in hot gas steadily condensing into the disk, an inactive cool disk might survive. For this case we further investigate the Bremsstrahlung radiation from the hot corona and compare it with the observed X-ray luminosity. Our model shows that, for standard viscosity in the corona (alpha=0.3), the mass evaporation rate is much higher than the Bondi accretion rate and the coronal density is much larger than that inferred from Chandra observations. An inactive disk can not survive such strong evaporation. For small viscosity (alpha<0.07) we find condensation solutions. But detailed computations show that in this case there is too much X-ray radiation from the corona to be in agreement with the observations. Therefore, we conclude that there should be no thin/inactive disk presently in the Galactic Center. However, we do not exclude that the alternative non-radiative model of Nayakshin (2004) might instead be realized in nature.Comment: 8 pages, including 3 figures, accepted for publication in A&

    Motor traffic on urban minor and major roads: impacts on pedestrian and cyclist injuries

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    This article compares per-mile risks posed by motor traffic to pedestrians and cyclists on urban major and minor roads. Carrying out new analysis of police injury data from 2005-15, the paper finds that per billion vehicle miles, motor vehicles on minor roads create more pedestrian casualties than motor vehicles on major roads. Specifically, for KSI (killed or seriously injured) injuries the rate per billion motor vehicle miles is 17% higher on minor roads (47 versus 40 KSIs per billion vehicle miles), while for slight injuries it is 66% higher (188 vs. 123 slight injuries per billion vehicle miles). Examining the costs of injuries sustained, these are 7.4% higher for pedestrians per motor vehicle mile travelled on urban minor roads, compared to major roads. For cyclists, injury costs are slightly higher (4.2%) on major roads per mile driven, compared to minor roads. These results suggest that re-routing motor traffic to major roads in urban areas may reduce pedestrian casualties. However, if cyclist safety on major roads is not improved, shifting motor traffic from minor to major roads may result in unintended negative injury consequences for cyclists

    Neutrinos and Gamma Rays from Galaxy Clusters

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    The next generation of neutrino and gamma-ray detectors should provide new insights into the creation and propagation of high-energy protons within galaxy clusters, probing both the particle physics of cosmic rays interacting with the background medium and the mechanisms for high-energy particle production within the cluster. In this paper we examine the possible detection of gamma-rays (via the GLAST satellite) and neutrinos (via the ICECUBE and Auger experiments) from the Coma cluster of galaxies, as well as for the gamma-ray bright clusters Abell 85, 1758, and 1914. These three were selected from their possible association with unidentified EGRET sources, so it is not yet entirely certain that their gamma-rays are indeed produced diffusively within the intracluster medium, as opposed to AGNs. It is not obvious why these inconspicuous Abell-clusters should be the first to be seen in gamma-rays, but a possible reason is that all of them show direct evidence of recent or ongoing mergers. Their identification with the EGRET gamma-ray sources is also supported by the close correlation between their radio and (purported) gamma-ray fluxes. Under favorable conditions (including a proton spectral index of 2.5 in the case of Abell 85, and sim 2.3 for Coma, and Abell 1758 and 1914), we expect ICECUBE to make as many as 0.3 neutrino detections per year from the Coma cluster of galaxies, and as many as a few per year from the Abell clusters 85, 1758, and 1914. Also, Auger may detect as many as 2 events per decade at ~ EeV energies from these gamma-ray bright clusters.Comment: Accepted for publication in Ap
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