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Adsorption parameters (e.g. Langmuir constant, mass transfer coefficient and Thomas rate constant) are involved in the design of aqueous-media adsorption treatment units. However, the classic approach to estimating such parameters is perceived to be imprecise. Herein, the essential features and performances of the ant colony, bee colony and elephant herd optimisation approaches are introduced to the experimental chemist and chemical engineer engaged in adsorption research for aqueous systems. Key research and development directions, believed to harness these algorithms for real-scale water treatment (which falls within the wide-ranging coverage of the Sustainable Development Goal 6 (SDG 6) ‘Clean Water and Sanitation for All’), are also proposed. The ant colony, bee colony and elephant herd optimisations have higher precision and accuracy, and are particularly efficient in finding the global optimum solution. It is hoped that the discussions can stimulate both the experimental chemist and chemical engineer to delineate the progress achieved so far and collaborate further to devise strategies for integrating these intelligent optimisations in the design and operation of real multicomponent multi-complexity adsorption systems for water purification.

Purpose – Description of the effects of the revolution in neuroscience and other areas of biology that can help to explain the roots of some portion of violent crime. The chapter reconsiders the role of brain chemistry in social behavior and violent behavior. To illustrate the interdisciplinary complexities entailed when linking brain chemistry to policy decisions concerning violent crime, this analysis has four main stages: first, why might SiFs (H2SiF6 and Na2SiF6, jointly called “silicofluorides” or SiFs) be dangerous? Second, what biochemical effects of SiF could have toxic consequences for humans? Third, on this basis a research hypothesis predicts children in communities using SiF should have increased uptake of lead from environmental sources and higher rates of behavioral dysfunctions known to be caused by lead neurotoxicity.

Design/methodology/approach – To illustrate the implications of the new issues involved, this chapter focuses on a public policy that inadvertently seems to increase rates of violent crime. Since violent behavior is one of the effects of lead neurotoxicity, the hypothesis is tested using multiple sources of data including rates of violent crime studied using a variety of multivariate statistical techniques (including analysis of variance, multiple regression, and stepwise regression).

Findings – Various data sources point to greater violence among individuals with greater exposure to SiFs.

Originality/value – Testing hypotheses linking neurotoxins to violent behavior reveals the generally unsuspected value of analyzing human social behavior and public policy from the perspective of evolutionary psychology.

The contamination of groundwater by natural arsenic is currently a worldwide epidemic. Arsenic-contaminated groundwater has been reported in Argentina, Chile, Mexico, China, Hungary, West Bengal in India, Bangladesh, and Vietnam. Of these regions, Bangladesh and West Bengal are the most seriously affected in terms of the size of the population at risk and magnitude of health problems. Hence, chronic exposure to arsenic >50′′μg/L in drinking water can result in serious health problems. Common symptoms of arsenic-related ailments are skin, cardiovascular, renal, hematological, and respiratory disorders. Therefore, this chapter focuses on nature, origin, and extent of groundwater arsenic contamination, probable causes, and its impacts on food, drinking water, and social coverage. It further discloses mitigation approaches proposed and practiced by the different research groups to combat this problem and finally concludes.

This chapter will introduce three novel technologies demonstrated in Sino-Italian Green Energy Lab of Shanghai Jiao Tong University for the hot summer and cold winter climate zone.

Experimental and modeling works have been conducted on the application of these systems. A comprehensive review on the features of these novel technologies, their adaptability to local climate condition have been carried out, and some initial study results have been reported.

Solar PV direct-driven air conditioner with grid connection, home used small temperature difference heat pump, smart house energy information and control system are appropriate energy technologies with reduced CO₂ emission, which can be applied efficiently in the hot summer and cold winter climate zone. More useful data will be obtained in the future demonstration tests in Sino-Italian Green Energy Lab.

This work shows combining renewable energy technologies and information technologies is crucial to improve the energy efficiency and the comfortableness for indoor environment.

During the 1990s, new theories emerged in the field of strategy. In particular, the resource-based and competence-based views of the firm developed in reaction to Porter and the entire current derived from the industrial economy. However, these approaches have their own limitations: they are difficult to put into practice and are partially similar to the industrial approach.

This article has two aims: (a) to make a clearer distinction between the classical approach on the one hand, and the resource- and competence-based approach on the other hand; and (b) to overcome the opposition between these two models in order to grasp their complementarities. First of all, a critical analysis of the literature is presented, in order to understand how these two approaches fit into thinking. This theoretical framework is then illustrated by a case study of Air Liquide, which, in some of its activities, adopted a competence-based strategy and structure. The case study clearly identifies the points of divergence such as the complementarities between the two approaches, thereby showing how one can overcome their oppositions as well as their respective limitations.

How general can a “general” theory of entrepreneurship be? Abstraction is a necessity but is it possible to include venture opportunity variation in a general theory of entrepreneurship building on two contrasting perspectives such as equilibrium economics and disequilibrium economics. Two important boundaries need to be explicated. First, defining entrepreneurship as the creation of new economic activity includes both the creation of new means – ends (cf. Schumpeter, 1934) – as well as optimizing within known means – ends frameworks (cf. Kirzner, 1997). Second, such a theory includes an opportunity – actor nexus because it is the first tangible or intangible evidence of existing venture opportunities. Formal models of entrepreneurship often start with a person and at some point in time an exchange of persons with firms take place which is confusing because both levels of analysis and outcome are mixed with each other. Apparently, there is no such thing as entrepreneurship without actors, but if we want to create knowledge about the creation of economic activity, we need to frame our boundary around the nascent initiative instead of single actors and/or teams of actors because value can only be assessed in relation to the costs of services withdrawn. Analogous to this is, for example, the theory of firm and the theory of organizations with boundaries well beyond single actors or groups of actors. Another factor behind a venture-based theory of entrepreneurship comes from empirical evidence from the Swedish PSED, which suggests that approximately 16% (n=97) nascent entrepreneurs are exchanged during the start-up process. Formal models of entrepreneurship could therefore start with the nexus of venture opportunities and enterprising actors as suggested by Shane (2003) or with resources as suggested by Davidsson (2000) and progress forward in the entrepreneurial process. Entrepreneurship models built around the economic activity itself needs to be dynamic allowing different outcomes and feedback loops because resource combinations alter our perception of value and diffuses information, which may lead to additional resource combinations (Hayek, 1945).

Although there have been extensive studies on the hydrological and erosional impacts of logging, relatively little is known about the impacts of conversion into agricultural plantation (namely rubber and oil palm). Furthermore, studies on morphological impacts, sediment-bound chemistry and forensic attribution of deposited sediment to their respective sources are scarcer. This chapter introduces the potential for using the multi-proxy sediment fingerprinting technique in this context. Featuring pilot projects in two major flood-prone river systems in Malaysia, the studies explore application of geochemistry-based sediment source ascription. The geochemical signatures of sediment mixtures on floodplains were compared to sediments from upstream source tributaries. The tributaries were hypothesised to have different geochemical signatures in response to dominant land management. The first case study took place in the Segama River system (4,023 km²) of Sabah, Malaysian Borneo where a mixture of primary forest, logged-forests and oil palm plantations were predominant. The second case study was in the Kelantan River Basin (13,100 km²) with two major tributaries (Galas River and Lebir River) where logged-forests and rubber and oil palm plantations are dominant land-uses. Both case studies demonstrated the applicability of this method in ascribing floodplain deposited sediment to their respective upstream sources. Preliminary results showed that trace elements associated with fertilisers (e.g. copper and vanadium) contribute to agricultural catchment signatures. Alkaline and alkaline-earth elements were linked to recently established oil palm plantations due to soil turnover. Mixing model outputs showed that contributions from smaller, more severely disturbed catchment are higher than those from larger but milder disturbed catchments. This method capitalises on flood events to counter its adverse impacts by identifying high-priority sediment source areas for efficient and effective management.

The increasing accumulation of synthetic plastic waste in oceans and landfills, along with the depletion of non-renewable fossil-based resources, has sparked environmental concerns and prompted the search for environmentally friendly alternatives. Biodegradable plastics derived from lignocellulosic materials are emerging as substitutes for synthetic plastics, offering significant potential to reduce landfill stress and minimise environmental impacts. This study highlights a sustainable and cost-effective solution by utilising agricultural residues and invasive plant materials as carbon substrates for the production of biopolymers, particularly polyhydroxybutyrate (PHB), through microbiological processes. Locally sourced residual materials were preferred to reduce transportation costs and ensure accessibility. The selection of suitable residue streams was based on various criteria, including strength properties, cellulose content, low ash and lignin content, affordability, non-toxicity, biocompatibility, shelf-life, mechanical and physical properties, short maturation period, antibacterial properties and compatibility with global food security. Life cycle assessments confirm that PHB dramatically lowers CO₂ emissions compared to traditional plastics, while the growing use of lignocellulosic biomass in biopolymeric applications offers renewable and readily available resources. Governments worldwide are increasingly inclined to develop comprehensive bioeconomy policies and specialised bioplastics initiatives, driven by customer acceptability and the rising demand for environmentally friendly solutions. The implications of climate change, price volatility in fossil materials, and the imperative to reduce dependence on fossil resources further contribute to the desirability of biopolymers. The study involves fermentation, turbidity measurements, extraction and purification of PHB, and the manufacturing and testing of composite biopolymers using various physical, mechanical and chemical tests.