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This review aims to give an overview about zinc oxide (ZnO) based gas sensors and the role of doping in enhancing the gas sensing properties. Gas sensors based on ZnO thin film are preferred for sensing applications because of their modifiable surface morphology, very large surface-to-volume ratio and superior stability due to better crystallinity. The gas detection mechanism involves surface reaction, in which the adsorption of gas molecules on the ZnO thin film affects its conductivity and reduces its electrical properties. One way to enhance the gas sensing properties is by doping ZnO with other elements. A few of the common and previously used dopants include tin (Sn), nickel (Ni) and gallium (Ga).

In this brief review, previous works on doped-ZnO formaldehyde sensing devices are presented and discussed.

Most devices provided good sensing performance with low detection limits. The reported operating temperatures were within the range of 200̊C –400̊C. The performance of the gas sensors can be improved by modifying their nanostructures and/or adding dopants.

As of yet, a specific review on formaldehyde gas sensors based on ZnO metal semiconductors has not been done.

As university–industry collaboration (UIC) is associated to transfer of knowledge and technology, this collaboration is an extremely important field of study for the world's economies that helps industries become more competitive. UIC will assist universities in fine-tuning universities' educational programs to match with the industrial demand. This study, thus, presents a systematic literature review related to UIC in technology development process and technology commercialization.

The Scopus database is used to extract the relevant articles. First, in presenting the articles, four scientometric analyses are used to visualize the bibliometric clusters, namely articles and journals co-citation analysis, countries collaboration analysis and keywords co-occurrence analysis. Next, a qualitative approach is used to classify the articles according to the methodology used and type of research. Finally, a research trend and keywords' evolution based on keywords are also provided.

Results of this study reveal that majority of the articles used qualitative approach and descriptive analysis to explain the knowledge flow between industries and universities. According to the research trend analysis, researchers in this field were moving from the knowledge-based economy topic (from 2010–2013) to product development (2014–2015), technology commercialization (2016–2017), open innovation (2018–2019) and then currently are focusing on the green entrepreneurship topic.

This study is expected to facilitate scholars to uncover gaps in the literature of UIC.

This study extends the use of scientometric analysis. The combination of “bibliometrix” R-package tool and VOSViewer software to perform the analysis is expected to give a new insight of doing the systematic literature review.

The purpose of this study is to investigate whether equity market timing has a persistent impact on the firm’s capital structure or not. In achieving this purpose, there are two hypotheses developed in this study. The first hypothesis is that historical price-book-value (PBV) negatively affect leverage; while the second hypothesis is that historical PBV ratio negatively affects the change of cumulative on leverage. The sample of this study is cross sectional data obtained from the Indonesia Stock Exchange for 2001–2011 research period. The author disentangles the sample into subsamples based on IPO+k, in which k is the number of years after the initial public offering (IPO). The results show that most of the regression coefficients in the historical PBV do not have negative impact on the capital structure and only a small part of the regression coefficient of the historical PBV has a statistically negative impact on the capital structure. Therefore, the findings of this research conclude that equity market timing doesn’t have persistent impact on capital structure of the firms in Indonesia.

Despite making significant strides in transforming its environmental outlook over the past few years and promoting sustainable procurement (SP) in the public sector, the United Arab Emirates (UAE) is still facing serious challenges in moving up the global sustainability ranks. Thus, this study aims to assess and prioritize critical factors, including cost, organization, innovation capability, stakeholder, culture and market-related factors, and their respective sub-factors for the implementation of SP, and come up with recommendations.

This study uses the analytical hierarchy process model to prioritize the main factors and sub-factors that can critically affect the implementation of SP in the UAE public sector. Data were collected through a survey of 17 procurement experts working in procurement departments in public organizations in Abu Dhabi, UAE.

The results reveal that cost is the highest ranked critical factor, followed by an organization, whereas innovation capability is the lowest ranked of the main factors. The initial cost of green products and their life-cycle cost are the most prioritized of cost factors. An individual’s commitment to change, top management support and organizational commitment are the highest-ranked sub-factors. Social awareness is the most important sub-factor among culture, and the supplier’s capability is the highest ranked sub-factor in the market.

The government should issue a standard practices handbook for SP to be used by public organizations to provide public procurers a clear method for conducting a proper cost–benefit analysis to evaluate and decide on sustainable purchases that fit the economy and society and meet the national sustainability agenda. Furthermore, additional attention needs to be paid to cultural factors such as social and environmental awareness by policymakers to succeed in achieving SP. Finally, top management and government officials must reevaluate their own personal values and commitment to sustainability issues as they participate in forming policies, rules, regulations and training programs designed for procurement managers within government organizations.

Although considerable research has been conducted on this topic, this study is unique in its presentation of a critical understanding of which factors and sub-factors are likely to significantly affect SP implementation in the UAE, which shall provide the relevant researchers and practitioners with the necessary knowledge to be ready for the changes that may lie ahead.

The purpose of this study is to exploration potential money laundering crimes with virtual currency facilities in Indonesia. Money laundering using crypto is the process of disguising the origin of money obtained illegally. Then, the perpetrator transfers it to a legitimate business. Virtual money then started to become a phenomenon in society since the emergence of cryptocurrencies as a form of technology development of e-commerce activities.

This research method is normative law which is prescriptive. The data collection technique used is document study or literature study by collecting primary and secondary legal materials.

The results of this study show that the bitcoin virtual currency has the potential to act as a means of money laundering. There are technologies and online platforms that are moving with more sophisticated methods. Through bitcoin exchanges, it has the greatest potential for money laundering. The usage of virtual currency (cryptocurrency) by those who commit money laundering offenses is responsible for the actions’ severe negative effects on the State of Indonesia.

To the best of the author’s knowledge, this is the first study conducted in Indonesia that explores potential money-laundering crimes using virtual currency facilities.

The purpose of this paper is to highlight the disparity between the disclosures of risk governance (RGOV) categories, namely, structures both at the board and management level, and RGOV practices among five of the Association of Southeast Asian Nations (ASEAN-5) countries. Furthermore, this paper investigates the effects of RGOV and its categories on return on assets (ROA).

Using 285 ASEAN-5 bank-year observations comprising hand-collected data for the period of 2010–2014, RGOV indexes are developed on the basis of 12 of the 13 governance guidelines published by the Basel Committee.

Although some banks are found to be early adopters, there is an increasing trend of disclosure for all of the investigated categories. Furthermore, there are no effects of the overall RGOV, board-level RGOV structure and risk management practice on ROA. However, the effect of the management-level RGOV structure on ROA is negative and significant.

Measurements of RGOV indexes are based solely on the examination of criteria that have not been previously tested. Other limitations are related to the information completeness, subjectivity and interpretation.

Management-level RGOV tends to decrease profitability because of the additional costs related to its implementation. Financial regulators may find this result useful as feedback to evaluate the effectiveness of regulation and possible future improvements.

This paper’s uniqueness lies in constructing new RGOV indexes on the basis of the latest bank governance guidelines from the Basel Committee issued on July 9, 2015.

The purpose of this paper is to measure the effects of corporate financial performance toward the influences of corporate growth and company asset utilization on the corporate market value.

This research is an explanatory research that describes the influences of one or more variables on other variables based on secondary data. This research took place in Indonesia and was carried out from 2011 to 2016.

The findings of this study are corporate growth has a significant influence on the corporate market value, implying that companies should consider the short-term and long-term profitabilities before making any investment decision; asset utilization has been confirmed to have a positive and significant influence on financial performance. Insights into asset utilization effectiveness and efficiency are important for company managers to consider in making strategic decisions upon operational activities of the company. Also, financial performance has a positive and significant influence on the corporate market value.

Research originality offered in this research is in the form of empirical evidence upon the influence of company asset utilization on the financial performance and corporate market value of a company. The finding of this research is expected to provide a better understanding on the role of company asset utilization in determining corporate financial performance which is known to be certain.