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- 저자 : ( Ahmad Haruna Abubakar ) (검색결과 2 건)
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( Ahmad Haruna Abubakar ),( Noorhayati Mansor ),( Norhayati Abdullah ) 한국회계학회 2021 會計學硏究 Vol.46 No.6
This study examines whether the existence of a separate risk management committee can moderate the relationship between ownership structure (managerial, institutional, and foreign) on real earnings management. The data are obtained from 360 firm-year observations for five years (2015-2019). Panel Corrected Standard Error is employed to analyze the data studied. The findings show that the existence of risk management committee along with managerial ownership are likely to prevent managers from engaging in real earnings management. Additionally, despite the positive effect of institutional ownership and foreign ownership on real earnings management, the presence of risk management committee can influence institutional and foreign investors with short-term investment motives and exercise efficient monitoring and reduce the frequency of manipulating. The result give understanding to investors, regulators, and financial analyst that the moderating effect of risk management committee on the ownership structure (managerial, institutional, and foreign) would strengthen the corporate board monitoring and deter management from engaging in perpetual unethical practice such as earnings management
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Potential of Using Ginger Essential Oils-Based Nanotechnology to Control Tropical Plant Diseases
Adamu Abdullahi,Khairulmazmi Ahmad,Intan Safinar Ismail,Norhayu Asib,Osumanu Haruna Ahmed,Abubakar Ismaila Abubakar,Yasmeen Siddiqui,Mohd Razi Ismail 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.6
Essential oils (EOs) have gained a renewed interest in many disciplines such as plant disease control and medicine. This review discusses the components of ginger EOs, their mode of action, and their potential nanotechnology applications in controlling tropical plant diseases. Gas chromatography-mass spectroscopy (GC-MS), high-performance liquid chromatography, and headspace procedures are commonly used to detect and profile their chemical compositions EOs in ginger. The ginger EOs are composed of monoterpenes (transcaryophyllene, camphene, geranial, eucalyptol, and neral) and sesquiterpene hydrocarbons (α-zingiberene, ar-curcumene, β-bisabolene, and β-sesquiphellandrene). GC-MS analysis of the EOs revealed many compounds but few compounds were revealed using the headspace approach. The EOs have a wide range of activities against many phytopathogens. EOs mode of action affects both the pathogen cell’s external envelope and internal structures. The problems associated with solubility and stability of EOs had prompted the use nanotechnology such as nanoemulsions. The use of nanoemulsion to increase efficiency and supply of EOs to control plant diseases control was discussed in this present paper. The findings of this review paper may accelerate the effective use of ginger EOs in controlling tropical plant diseases.
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