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This paper aims to discuss the successful 3D printing of styrene–ethylene–butylene–styrene (SEBS) block copolymers using solvent-cast 3D printing (SC-3DP) technique.

Three different Kraton grade SEBS block copolymers were used to prepare viscous polymer solutions (ink) in three different solvents, namely, toluene, cyclopentane and tetrahydrofuran. Hansen solubility parameters (HSPs) were taken into account to understand the solvent–polymer interactions. Ultraviolet–visible spectroscopy was used to analyze transmittance behavior of different inks. Printability of ink samples was compared in terms of shape retention capability, solvent evaporation and shear viscosity. Dimensional deviations in 3D-printed parts were evaluated in terms of percentage shrinkage. Surface morphology of 3D-printed parts was investigated by scanning electron microscope. In addition, mechanical properties and rheology of the SC-3D-printed SEBS samples were also investigated.

HSP analysis revealed toluene to be the most suitable solvent for SC-3DP. Cyclopentane showed a strong preferential solubility toward the ethylene–butylene block. Microscopic surface cracks were present on tetrahydrofuran ink-based 3D-printed samples. SC-3D-printed samples exhibited high elongation at break (up to 2,200%) and low tension set (up to 9%).

SC-3DP proves to be an effective fabrication route for complex SEBS parts overcoming the challenges associated with fused deposition modeling.

To the best of authors’ knowledge, this is the first report investigating the effect of different solvents on physicomechanical properties of SC-3D-printed SEBS block copolymer samples.

The purpose of this study is to explore the ideological gaps across a range of policing interactions with the public.

In a survey distributed via Mechanical Turk (MTurk) (n = 979), the authors explore the role that respondents' political ideology plays in the agreement of 13 aspects of policing services, their demeanor and decorum.

Attitudes toward policing interactions are slightly positive. Conservatives steadfastly hold positive attitudes about police. Liberals vacillate from negative to positive attitudes across the 13 policing interaction statements.

Although small, there is an ideological consensus that police adequately protect citizens and are knowledgeable about the law.

Even at record lows of public confidence in the police, some subsections of the sample, such as conservatives, firmly hold positive attitudes about police. The unwavering support for police by conservatives continues across the multi-item measure of policing interactions, whereas liberals illustrated less uniformity in their attitudes.

The purpose of this paper is to investigate the effect of different PHS on the surface chemistry of fumed silica treated with aminopropyltrimethoxysilane (APTMS).

The reaction conditions involved variation of pH ranging from acidic to alkaline. Different analytical techniques including FT‐IR spectroscopy, thermogravimetric analysis (TGA), CHN and Zeta potential analyses were employed to investigate the surface chemistry of treated particles. In addition, the stability of silanised silica dispersions were studied using turbidimetric and rheometric measurements.

It was revealed that in all conditions silica was more or less chemically grafted by the silane. When the pH of treating bath was adjusted to 1‐2 prior and during the reaction, 58 percent grafting was observed, as obtained by CHN and TGA analyses. At very alkaline conditions, however, the grafting content declined to 29 percent. The variations in grafting were dependent on the silane hydrolysis and its further condensation with the silica surface. Zeta potential measurements showed a drastic change from −7.1 mv to +18.01 mv (at pH 7) for the untreated particle and the one with the highest grafting, respectively. The dispersion stability of differently treated particles varied in solvents with different Hansen solubility parameters (HSP). Moreover, due to the variations of surface chemistry of particles, their rheological behaviours were significantly influenced.

The results obtained in this work showed that the surface chemistry of fume silica could be tuned with treating method. The highest content of grafting led to a better dispersion in solvents having greater hydrogen bonding component and to an inferior dispersion in solvents with higher polar component.

Background: Commodity-driven deforestation is a major driver of forest loss worldwide, and globalisation has increased the disconnect between producer and consumer countries. Recent due-diligence legislation aiming to improve supply chain sustainability covers major forest-risk commodities. However, the evidence base for specific commodities included within policy needs assessing to ensure effective reduction of embedded deforestation.

Methods: We conducted a rapid evidence synthesis in October 2020 using three databases; Google Scholar, Web of Science, and Scopus, to assess the literature and identify commodities with the highest deforestation risk linked to UK imports. Inclusion criteria include publication in the past 10 years and studies that didn't link commodity consumption to impacts or to the UK were excluded. The development of a review protocol was used to minimise bias and critical appraisal of underlying data and methods in studies was conducted in order to assess the uncertainties around results.

Results: From a total of 318 results, 17 studies were included in the final synthesis. These studies used various methodologies and input data, yet there is broad alignment on commodities, confirming that those included in due diligence legislation have a high deforestation risk. Soy, palm oil, and beef were identified as critical, with their production being concentrated in just a few global locations. However, there are also emerging commodities that have a high deforestation risk but are not included in legislation, such as sugar and coffee. These commodities are much less extensively studied in the literature and may warrant further research and consideration.

Conclusion: Policy recommendations in the selected studies suggests further strengthening of the UK due diligence legislation is needed. In particular, the provision of incentives for uptake of policies and wider stakeholder engagement, as well as continual review of commodities included to ensure a reduction in the UK's overseas deforestation footprint.

The chapter describes a four-year research project, the objective of which was to design and develop an intervention tool to assist middle school students in their information seeking when engaged in an inquiry-based learning project.

Bonded design method was used to design a proof-of-concept (POC) low-tech Guide, and focus group and Informant Design methods were utilized to develop a Web Guide.

In creating an intervention tool, whether low-tech paper-based or high-tech websites, different methodologies that relied heavily on the participation of students in the design process were successfully utilized.

The research shows that participation of children and adolescents in designing the content of technology for educational use is imperative.

This is a long-term research project, which is unparalleled and unique in its scope, duration, breadth, and depth. Having access to the grade eight classes in a single school over a four-year period has proven to be a remarkable research opportunity, seldom reported in the literature.

The purpose of this paper is to define “beneficence” as a management concept that is the action associated with “benevolence” the intention. This paper explains how beneficence is a critical element for leaders in building trust. The authors identify how beneficence honors the ethical duties owed to followers and creates competitive advantage for organizations.

The approach of this paper is to present an extensive conceptual review of beneficence as it relates to leaders and managers and to suggest eight propositions identifying how beneficence can create competitive advantage.

The findings of this paper include eight propositions about beneficence as a source of competitive advantage.

The practical implications of this paper are for practitioners and scholars. This paper provides an opportunity for leaders to recognize the importance of translating good intentions into specific action in acting virtuously toward others. For scholars, this paper provides testable propositions for learning more about beneficence as a source of increased commitment, greater trust, and competitive advantage.

Although benevolence has been acknowledged to be a foundation of trustworthiness, benevolence is an attitude or intention. This paper explains the importance of beneficence as the action derived from benevolence as an attitude or intention to do that which benefits others.

The purpose of this chapter is to give an interpretation to the limits of Indonesia’s forestry policy through the sustainable development approach analyzing the crossroads between economic development and environmental sustainability. There is an expansion and intensification of industrial plantations such as palm oil, as part of the economic development strategy, which must coexist with ongoing efforts of conservation of forest resources in the pursuit of environmental sustainability, including policies such as the Forest Moratorium.

The study explores the influence of the economic development of the palm oil industry in the environmental sustainability of the Forest Moratorium during the period 2011–2014. A case study on the Forest Moratorium is presented analyzing the operativeness of sustainable development principles in the discourse and concrete actions of this specific policy.

The study evidences that there is a basic problem in Indonesia’s forestry policy and the sustainable development approach, not only because of its inherent contradictions, but also due to the flaws in its interpretation and implementation. It is necessary to rethink the sustainable development, its scopes and limitations, taking into consideration its hybridity, dynamism, and constant transformation. It is also necessary to consider the feasibility of a paradigm shift or a search for sustainable solutions based on other parameters. One way of doing it should include a more participatory approach with a joint work by the government, local communities, nongovernmental organizations, the private sector, and academia.

First, as this is a case study the findings are not generalizable; and second, the social dimension of sustainable development is not incorporated in its entirety, as this study focuses mainly on the economic and environmental dimensions.

The findings contribute to the discussion in the theoretical and public policy fields, on the crossroads between economic development and environmental sustainability in the international agenda for sustainable development.

The study allows capturing the discussion in a concrete case and learning from the experience of Indonesia, its institutional failures, and the causes of its environmental problems.

The formation of zinc soaps in paints containing zinc oxide and fatty acids leads to a situation called ‘seeding’. Seeding is the collection of the zinc soaps into particles significantly larger than the thickness of a dried paint film (≈30 microns). The particles are readily visible and resemble seeds, hence the origin of the name. The solubility of these soaps in the vehicle falls rapidly with lower temperatures, leading to their separation from the vehicle when the temperature falls well below that corresponding to the solubility limit at the prevailing concentration.

Jetting‐based additive manufacturing processes are gaining attention due to their high speed of operation, accuracy and resolution. Support material plays an important role in the additive manufacturing of parts by using processes that utilise jetting (inkjet) technology. This research aims to present novel support material compositions consisting of methylcellulose (MC) and propylene glycol or butylene glycol. These compositions form gels which are easy to remove and provide the advantage of reusability.

MC was mixed in propylene glycol or butylene glycol in different concentrations and examined for gel formation on heating and subsequent cooling. The viscosity and surface tension of these compositions were measured at temperatures suitable for jetting. Gel strength was characterised using texture analysis.

The viscosity and surface tension values at elevated temperatures (i.e. 800°C) show the suitability of these compositions for jetting‐based additive manufacturing processes. Due to their softness, these gels can be removed easily and their low melting points (i.e. near 500°C) allow their reusability as support materials.

This paper provides a novel approach of using polymer gels as support materials for additive manufacturing processes. These gels are easy to prepare and enhance the sustainability due to their reusability.

Although, MC in water have shown to form gels and these aqueous gels have been used in many applications such as medicine and food industries, the compositions presented in this paper are unique. Such combinations of MC and non‐aqueous solvents (i.e. propylene glycol and butylene glycol) have not been discussed before and provide an early step towards a new application area (i.e. additive manufacturing) for these gels.