Gadjah Mada University

About: Gadjah Mada University is a education organization based out in Yogyakarta, Indonesia. It is known for research contribution in the topics: Population & Adsorption. The organization has 17307 authors who have published 21389 publications receiving 116561 citations. The organization is also known as: University of Gajah Mada & Universitas Gadjah Mada.

Hubungan Tindakan Perataan Laba dengan Reaksi Pasar atas Pengumuman Informasi Laba Perusahaan yang Terdaftar di Bursa Effek Jakarta

Abstract: The investor’s attention on net income numbers without regard to the procedures used to generate them, has encourage management to carry out earnings management. Includes within earnings management is income smoothing. Income smoothing can be viewed in term of the reduction in earnings variability over a numbers of periods, or within a single period, as the movement toward unexpected level of reported earning. Objective of this study to examine the market reaction on earnings announcement due to the income smoothing. This study examine ninety nine companies which listed in Jakarta Stock Exchange at least since 1990. Market reaction is measured as cumulative abnormal return five days surrounding the companies’ earnings announcement date. Overall, the result of this study indicate that there is significant market reaction surrounding the companies’ earnings announcement date and these market reaction significantly difference between smoother companies and non-smoother companies. This study is hopes to give contribution to the literature, that income smoothing practice can regard as a signal to better prediction of future earnings by investors and a mean to decrease market reaction on companies’ earnings anouncement.

Polyyne hybrid compounds from Notopterygium incisum with peroxisome proliferator-activated receptor gamma agonistic effects.

Abstract: In the search for peroxisome proliferator-activated receptor gamma (PPARγ) active constituents from the roots and rhizomes of Notopterygium incisum, 11 new polyacetylene derivatives (1–11) were isolated. Their structures were elucidated by NMR and HRESIMS as new polyyne hybrid molecules of falcarindiol with sesquiterpenoid or phenylpropanoid moieties, named notoethers A–H (1–8) and notoincisols A–C (9–11), respectively. Notoincisol B (10) and notoincisol C (11) represent two new carbon skeletons. When tested for PPARγ activation in a luciferase reporter assay with HEK-293 cells, notoethers A–C (1–3), notoincisol A (9), and notoincisol B (10) showed promising agonistic activity (EC50 values of 1.7 to 2.3 μM). In addition, notoincisol A (9) exhibited inhibitory activity on NO production of stimulated RAW 264.7 macrophages.