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  • Elmore Jenkins heeft een update geplaatst 2 maanden, 1 week geleden

    Indonesia is currently in the process of mandating the establishment of Remuneration Committees (RCs) for all listed companies. However, little is known about the effectiveness of RCs in Indonesia. This study sheds light on this issue, by examining the relationships between RCs, executive and board of director remuneration, and firm performance in Indonesia. This study uses 847 observations of firms listed on the Indonesian Stock Exchange (IDX) during 2014-2017. Our results indicate that RCs are positively related to executives remuneration and firm performance. In particular, higher remuneration is only linked to higher performance in firms that have established a remuneration committee. This study documents the interactions between RCs, remuneration levels of senior company officers and firm performance in an emerging market setting with voluntary formation of RCs. This study has implications for regulators and company management in Indonesia (and other emerging markets), as the existence of remuneration committees is found to be associated with more effective remuneration packages and higher firm performance. © 2020 Published by Elsevier Ltd.To remove high oxygen content is important to make high quality oil and valuable products. In this paper, the research on homogeneous catalytic deoxygenation reactions, including decarboxylation (DCX)/decarbonylation (DCN), hydrodeoxygenation (HDO) is reviewed. Based on DCX/DCN, the classic radical reactions such as the Barton decarboxylation, Henkel, Hunsdiecker and Kochi reactions were introduced, the practice and overall performance are also discussed. In addition, the different reaction pathways and mechanisms were demonstrated and the key chemical processes have been selected from the literature as examples to elaborate the critical emphasis on the mechanistic understanding. The applications of the catalytic deoxygenation reactions for high-value products have also been highlighted. Overall, this review provides insight discussions on the DO issues and progresses in homogeneous catalytic aspects. © 2020 Published by Elsevier Ltd.Cortical deafness is a rare condition and is usually caused by bilateral cerebral lesions. Several cases of sudden cortical deafness caused by ischemic stroke or hypertensive intracerebral hematoma have been reported, however, no cases of traumatic cortical deafness were identified in our literature search. We experienced a case of delayed traumatic intracerebral hematoma (DTICH) presenting as cortical deafness. In our patient, warfarin intake seemed to be a risk factor for DTICH. Head injury may adversely affect the coagulability and thrombolysis. A high risk of DTICH after traumatic head injury should be kept in mind when encountering patients taking anticoagulants. © 2020 The Author(s).Lead-bismuth eutectic (LBE) is a candidate liquid metal coolant for a fast reactor, especially accelerator driven system (ADS). Freeze sealed valve is a candidate design to be possible to add passive safety to the reactor. On the other hand, since LBE is known that it causes expansion after its solidification, quantitative evaluation of the stress to the pipe produced by the LBE expansion should be considered. Many researchers produced related data for the expansion, however, evaluations of the strain by LBE expansion was barely reported. Therefore, the strain measurement using a stainless steel cup and the stress evaluation was performed together with visual observation using an optical microscopy. The results indicated keeping above room temperature (RT) was a significantly effective way to reduce the strain to the pipe. © 2020 The Authors.The mechanism of graphite formation on gray cast iron metal during carburisation process using organic nano-carbon (ONC) was investigated at 900 °C for a holding time of three (3) hours. TEM and XRD were employed to characterize the pulverised nano-carbon to determine their phases and bonding potentials. Also, SEM/EDS, XRD and Vickers’ hardness tester were employed to determine the microstructure, phase compositions as well as hardness and wear properties of the carburised material. The microstructural result showed that, there was uniform carbon diffusion into the substrate material which led to layers of graphite formation and subsequent surface modifications for each of the selected nano-carbon used. Also, the XRD results revealed variations in the peak patterns for each of the substrate carburised with different organic carbon with substrates showing graphite and iron phases as observed in that carburised in pulverised palm kernel shell having broad peaks at 35.50o, 44.4o, 65.12o and 82.395o. This is traceable to amorphous properties and crystalline behaviour of the organic carbon. Further to this, the micro-hardness measurement showed that substrate carburised using pulverised palm kernel shell performed better compared to other substrates in other media with a micro hardness value of 355.8 (HV) against as-received which is 116.9 (HV). Thus, this is a novel and possible method of improving the properties of grey cast iron to meet the increasing demand in gear applications. © 2020 The Author(s).In cross-spectral iris recognition, different spectral bands are used to obtain rich information of the human iris. Previous studies on cross-spectral iris recognition are based primarily on feature-based approaches, which are prone to the changes in parameters in the feature extraction process, such as spatial position and iris image acquisition conditions. Verteporfin nmr These parameters can degrade iris recognition performance. In this paper, we present a phase-based approach for cross-spectral iris recognition using phase-only correlation (POC) and band-limited phase-only correlation (BLPOC). A phase-based iris recognition system recognizes an iris using the phase information contained in the iris image; therefore, its performance is not affected by feature extraction parameters. However, the performance of a phase-based cross-spectral iris recognition is strongly influenced by specular reflection. Different illumination conditions may produce different iris images from the same subject. To overcome this challenge, we integrate a photometric normalization technique -homomorphic filtering- with phase-based cross-spectral iris recognition.

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