Preparation of Hexamethyldisilazanomethacryloxyphenyl ketone (HDMK) and its copolymerization in the presence of acrylates

2020 ◽  
Vol 49 (1) ◽  
pp. 19-25
Author(s):  
Hamid Javaherian Naghash ◽  
Ali Amiri

Purpose This paper aims to improve some properties of poly (methyl methacrylate) by copolymerization with butyl acrylate (BA) monomer along with the incorporation of the stable and economical synthesized silicone-containing monomer hexamethyldisilazanomethacryloxyphenyl ketone (HDMK) into the copolymer matrix. Design/methodology/approach For this target solution copolymerization of methyl methacrylate (MMA), BA and HDMK were carried out using a 250 mL four-necked round-bottom flask. Before solution polymerization start-up, the reaction vessel was first charged with 34.8 mL toluene and heated to 170 °C with stirring and reflux cooling. A monomer mixture of 25.86 g (260 mmol) MMA, 26.40 g (200 mmol) BA, 3.00 g (8.60 mmol) HDMK and 0.45 g (2.00 mmol) dibenzoyl peroxide was added continuously from the dropping funnel over a period of 4 h. Findings The HDMK was successfully synthesized and the water resistance of acrylic resins was improved because of the existence of HDMK. Research limitations/implications The materials that were used in this research paper had a reasonably low cost. Also, the procedures for synthesis of monomers and polymers were extremely easy because there was no need for high pressure or temperature and no dangerous solvents were used. Practical implications The acrylic resin that contained HDMK was used to synthesis a white architectural paint for exterior coating. Examining the paint characteristics has shown acceptable washing and abrasion resistance, good brushing, excellent storage stability and great surface coating. Originality/value HDMK was synthesized for the first time.

2015 ◽  
Vol 4 (1) ◽  
pp. 37-49 ◽  
Author(s):  
Mils Hills

Purpose – The purpose of this paper is to draw on the author’s background testing resilience in “no fail” organisations at the heart of UK government. The paper outlines a lean approach to high-impact training for strategic leaders, achieved in the form of low-cost exercises and harnessed to build resilience by surfacing risks, engaging with options and modelling decision outcomes. Repeated rehearsal of crisis and risk management responses grows organisational resilience and human capacity and reduces reputational, legal, operational and other costs. Design/methodology/approach – The methodology employed scenario-driven exercises (SDEs) is described for the first time in the open literature. Findings – Approaches such as SDEs build strategic resilience through effective training and learning, focusing on the fundamental priorities of strategic delivery, reputation and crisis management through avoiding and reacting to challenging circumstances. Practical implications – By being targeted at probing and gaming participants’ taking of decisions and logic of analysing available information, the use of frugal SDEs can provide substantial value in organisations where robust testing is welcomed and its findings implemented. Originality/value – SDEs are described for the first time in the open literature.


Author(s):  
Robert Douglas Hinshelwood ◽  
Luca Mingarelli ◽  
Simona Masnata

Purpose Many people in severe mentally disturbed states do not use language or other symbolic media well or coherently. Therefore, the non-verbal medium needs to be understood by workers with such people. The “Learning from Action” experiential workshop was developed in order to provide an opportunity to learn about hidden messages in the relationships and roles occurring in activities. In August 2017, a workshop was run for the first time in Japan. The purpose of this paper is to report the experience and dynamics observed by the three consultants, who are here the authors of this paper. Design/methodology/approach After the workshop all the staff and members, including interpreters, were invited to give feedback. Findings Analysis of the feedback data showed certain important dynamics, concerning especially dependence, cultural defences and the defensive role of activity in a multicultural context. Research limitations/implications This is an initial experience to be followed up by later feedback and further workshops. Practical implications Workers awareness of non-verbal communication within the roles of work activities is a training possibility. It faces various resistances including the mental health assumptions of meaninglessness of any communication outside the verbal. Originality/value This is a method of training not widely used even in European countries, and is the first in a country in the far east.


2015 ◽  
Vol 16 (1) ◽  
pp. 74-76
Author(s):  
Miriam Fisher ◽  
Brian McManus

Purpose – To explain the details and implications of a September 9, 2014 federal indictment, US v. Robert Bandfield, the first time a Foreign Account Tax Compliance Act (FATCA) violation has been charged as an “overt act” in furtherance of a tax conspiracy and securities fraud. Design/methodology/approach – Provides background, including the enactment of FATCA and the details of the indictment; describes an undercover investigation conducted by President Obama’s Financial Fraud Enforcement Task Force; and discusses the warnings this indictment sends to the global financial community. Findings – The indictment confirms the coordinated and aggressive tactics US law enforcement is now employing to investigate and prosecute offshore financial fraud. Practical implications – Banks and financial service providers need to be aware of the impact of enhanced US regulatory obligations and implement appropriate compliance measures. These institutions must also remain sensitive to risks presented by unscrupulous customers. Finally, they must be ready to manage appropriately information-gathering and investigatory inquiries originating with US authorities. Originality/value – Practical guidance from experienced tax controversy lawyers.


2018 ◽  
Vol 32 (5) ◽  
pp. 23-25 ◽  
Author(s):  
Lucie Cuvelier

Purpose This paper aims to review the latest management developments across the globe and pinpoint practical implications from cutting-edge research and case studies. Design/methodology/approach This briefing is prepared by an independent writer who adds their own impartial comments and places the articles in context. Findings An operative approach is described that is designed to structure the debriefing along three axes. Practical implications The paper provides strategic insights and practical thinking that have influenced some of the world’s leading organizations. Originality/value The briefing saves busy executives and researchers hours of reading time by selecting only the very best, most pertinent information and presenting it in a condensed and easy-to-digest format.


2014 ◽  
Vol 10 (2) ◽  
pp. 135-154 ◽  
Author(s):  
Ifigeneia Douvitsa ◽  
Demosthenis Kassavetis

Purpose – The aim of this article is to investigate the organization of water cooperatives in Greece for the first time, as promoted by a spontaneous social mobilization called Initiative 136. The above attempt appears as an alternative proposition as opposed to the state-driven full privatization of EYATH S.A. Design/methodology/approach – This article presents previous work on water cooperatives and the negative effects of water privatization worldwide, relating it to water privatization in Greek reality through the prism of the current recession. Findings – While full privatization under the pressure of the economic crisis is very likely to yield significantly negative results, a transformation into a water cooperative might provide a viable solution. Research limitations/implications – Water cooperatives provide a solution for water distribution that is friendly for the consumer, the society and the environment. Practical implications – Application of a cooperative method of water provision in Greece could be a springboard for the use of the model in other areas. Originality/value – The article evaluates the privatization and cooperativization attempt of EYATH S.A. based on previous related research and considering Greece ' s current conditions.


2019 ◽  
Vol 18 (1) ◽  
pp. 71-94
Author(s):  
Gerasimos Rompotis

PurposeA well-documented pattern in the literature concerns the outperformance of small-cap stocks relative to their larger-cap counterparts. This paper aims to address the “small-cap versus large-cap” issue using for the first time data from the exchange traded funds (ETFs) industry.Design/methodology/approachSeveral raw return and risk-adjusted return metrics are estimated over the period 2012-2016.FindingsResults are partially supportive of the “size effect”. In particular, small-cap ETFs outperform large-cap ETFs in overall raw return terms even though they fail the risk test. However, outperformance is not consistent on an annual basis. When risk-adjusted returns are taken into consideration, small-cap ETFs are inferior to their large-cap counterparts.Research limitations/implicationsThis research only covers the ETF market in the USA. However, given the tremendous growth of ETF markets worldwide, a similar examination of the “small vs large capitalization” issue could be conducted with data from other developed ETF markets in Europe and Asia. In such a case, useful comparisons could be made, so that we could conclude whether the findings of the current study are unique and US-specific or whether they could be generalized across the several international ETF markets.Practical implicationsA possible generalization of the findings would entail that profitable investment strategies could be based on the different performance and risk characteristics of small- and large-cap ETFs.Originality/valueThis is the first study to examine the performance of ETFs investing in large-cap stock indicesvis-à-visthe performance of ETFs tracking indices comprised of small-cap stocks.


2015 ◽  
Vol 28 (3) ◽  
pp. 173-184 ◽  
Author(s):  
Peter Spurgeon ◽  
Paul Long ◽  
John Clark ◽  
Frank Daly

Purpose – The purpose of this paper is to address issues of medical leadership within health systems and to clarify the associated conceptual issues, for example, leadership versus management and medical versus clinical leadership. However, its principle contribution is to raise the issue of the purpose or outcome of medical leadership, and, in this respect, it argues that it is to promote medical engagement. Design/methodology/approach – The approach is to provide evidence, both from the literature and empirically, to suggest that enhanced medical engagement leads to improved organisational performance and, in doing so, to review the associated concepts. Findings – Building on current evidence from the UK and Australia, the authors strengthen previous findings that effective medical leadership underpins the effective organisational performance. Research limitations/implications – There is a current imbalance between the size of the databases on medical engagement between the UK (very large) and Australia (small but developing). Practical implications – The authors aim to equip medical leaders with the appropriate skill set to promote and enhance greater medical engagement. The focus of leaders in organisations should be in creating a culture that fosters and supports medical engagement. Social implications – This paper provides empowerment of medical professionals to have greater influence in the running of the organisation in which they deliver care. Originality/value – The paper contains, for the first time, linked performance data from the Care Quality Commission in the UK and from Australia with the new set of medical engagement findings.


2017 ◽  
Vol 28 (4) ◽  
pp. 438-457 ◽  
Author(s):  
Andrea Chiarini ◽  
Emidia Vagnoni

Purpose There are different ways of implementing a corporate social responsibility (CSR) system. One interesting way of implementing a CSR system is based on standards such as SA8000 and ISO 26000. The purpose of this paper is to investigate the differences brought by the two standards in European manufacturing in CSR implementation using a survey. Design/methodology/approach Eight hypotheses were derived from an analysis of the implementation pattern for a CSR management system revealed from a review of the literature as well as from the actual two investigated standards. A questionnaire based on these hypotheses was administered to the CSR managers of 326 European manufacturing companies. A χ2 and Cramer’s V-tests were used to validate the results. The CSR managers also added comments to their responses. The qualitative results gathered from the respondents’ comments helped the authors’ to better understand the quantitative data. Findings The results showed differences in how the standards affect strategies, economic and financial issues, stakeholders involved, environmental management, customer and market issues, supply chain management and CSR key performance indicators. The results indicated that it is not clear how production and technical departments can be involved in and committed to such standards or, in general, to a CSR system. Research limitations/implications The research is based on a sample of European manufacturing managers and limited to the implementation of two specific CSR standards. Practical implications The differences between the standards should be interesting to practitioners who are thinking of implementing a CSR system in a manufacturing context and weighing the pros and cons of each standard. Originality/value This research analyses, for the first time, the differences in CSR implementation brought by SA8000 and ISO 26000 in manufacturing and, in particular, in production and technical departments.


2017 ◽  
Vol 34 (8) ◽  
pp. 8-19
Author(s):  
Stacy Brody

Purpose The purpose of this paper is to profile various types of Web-based tools to facilitate research collaboration within and across institutions. Design/methodology/approach Various Web-based tools were tested by the author. Additionally, tutorial videos and guides were reviewed. Findings There are various free and low-cost tools available to assist in the collaborative research process, and librarians are well-positioned to facilitate their usage. Practical implications Librarians and researchers will learn about various types of tools available at free or at low cost to fulfill needs of the collaborative research process. Social implications As the tools highlighted are either free or of low cost, they are also valuable to start-ups and can be recommended for entrepreneurs. Originality/value As the realm of Web-based collaborative tools continues to evolve, the options must be continually revisited and reviewed for currency.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Wasuthon Wisuchat ◽  
Viriya Taecharungroj

Purpose This paper aims to identify and to compare workplace location attributes that appealed to Generation Y and Z talent. Design/methodology/approach Semi-structured interviews were conducted with 12 participants to identify workplace location attributes. Choice-based conjoint surveys were collected from 750 Generation Y and Z individuals in the talent pool of Bangkok, Thailand to compare the importance of attributes. Findings The most important workplace location attribute was the availability and diversity of restaurants followed by place appearance, traffic density, availability of public workspaces, public transport and after-work activities. Transport-related attributes were more important for older generations, whereas public workspaces and place appearance were more important for younger talent. Practical implications To attract talent, the Bangkok Metropolitan Administration (BMA) should address the weaknesses of potential workplace locations through efficient, low-cost and rapid development plans. Although Bangkok is known for street food, BMA policies that promote restaurants as the most important attribute are limited. The BMA should initiate plans to promote the availability and diversity of restaurants. Innovation districts in Bangkok should connect to restaurants and food networks in their vicinity. Originality/value The existing literature explored factors that attract talent at the city level, but no study has investigated attractiveness at the workplace location level. Despite some similarities, workplace location attributes identified in this study were more specific than city-level attributes.


Sign in / Sign up

Export Citation Format

Share Document