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To save the economic cost and improve the performance of enterprises, this study aims to synthesize high performance immobilized penicillin G acylase (PGA) carriers with fast reaction speed, high recovery rate of enzyme activity and good reusability through corresponding theoretical guidance and experimental exploration.

A diblock resin was synthesized by reversible addition-fragmentation chain transfer polymerization method using N, N-diethylacrylamide (DEA) and β-hydroxyethyl methacrylate (HEMA) as functional monomers poly(N, N-diethylacrylamide)-b-poly(β-hydroxyethyl methacrylate) (PDEA-b-PHEMA) was obtained, and the effect of the ratio of DEA and HEMA on the activity of PGA was investigated, and the appropriate block ratio of DEA and HEMA was obtained. After that, the competitive rate of HEMA and glycidyl methacrylate (GMA) under the carrier preparation conditions was investigated. Based on the above work, a thermosensitive resin carrier PDEA-b-PHEMA-b-P(HEMA-co-GMA) with different target distances was synthesized, and the chemical structures and molecular weight of copolymers were investigated by hydrogen NMR (¹H NMR).

The lower critical solution temperature of the resin support decreases with the increase of the monomer HEMA in the random copolymerization; the catalytic performance study indicated that the response rate of the immobilized PGA is fast, and the recovery rate of the enzyme activity of the immobilized PGA varies with the distance between the targets. When the molar ratio of HEMA to GMA in the resin block is 8.15:1 [i.e. resin PDEA100-b-PHEMA10-b-P(HEMA65-co-GMA8)], the activity recovery rate of immobilized PGA can reach 50.51%, which was 15.49% higher than that of pure GMA immobilized PGA.

This contribution provides a novel carrier for immobilizing PGA. Under the optimal molar ratio, the enzyme activity recovery could be up to 50.51%, which was 15.49% higher than that of PGA immobilized on the carrier with nonregulated distance between two immobilization sites.

The purpose of this study is to assess the current state of affairs in the product recovery domain as perceived by Greek industry. The extent of involvement of original equipment manufacturers in product recovery activities (PRA), the direct profitability of PRA and the most important specific drivers and barriers to the implementation of PRA are the main issues that are explored. The paper also investigates whether these issues are affected by two factors: level of PRA and profitability of existing PRA.

A questionnaire‐based survey was conducted and 312 valid responses were received. Statistical analysis of the responses was carried out via non‐parametric χ²‐tests for homogeneity, Mann‐Whitney U‐tests and Friedman two‐way analysis of variance.

The results suggest that PRA are not very much developed by manufacturing companies in Greece. The companies engage in PRA mainly because they want to provide service to their customers; they are hesitant to embark on an unknown set of new activities, which complicate their manufacturing operations.

A limitation of the study is the variability in the manufacturers' responses as the data comes from the entire Greek industry.

The paper responds to the repeated calls for more empirical research in reverse logistics. It is the first survey‐based study of PRA in an industry that is not as developed as the industry in the USA or Western Europe, where most similar empirical research is conducted.

Studies of worker heat stress and strain in various countries have found that heat exposure is often likely to exceed the upper threshold limit of international standards. Heat strain data such as oral temperature, recovery heart rate, average heart rate and other work‐related information were investigated to study the impact of strenuous tasks in a hot climate. The study attempted to establish relationships between exposure to heat and heat strain data which could be used as the basis of ergonomic intervention and low‐cost solutions to the avoidance or mitigation of occupational risks.

The purpose of this paper is to verify recovery risk management capabilities by lessors. It tests several hypotheses and finds out interesting specific results for lessors.

The approach is empirical: two different database of leasing contracts are analysed with econometric methodologies.

There is clear evidence that: lessors are ex ante able to balance the probability of default and the loss given default case by case, using proper contract structures; and they carefully manage recovery procedures and strategies according to operations' characteristics.

The data used are large enough, but come from institutions concentrated in Italy. Future research could be extended to other relevant countries.

Results presented are verified in leasing companies which made a limited use of rating systems and credit risk model: they have been achieved by the continuous improvements of traditional lending practices. The development of modern reliable systems can enhance risk management capabilities; our findings can help building more structured and advanced credit risk management tools.

The paper adds to the literature in the sense that gives clear evidence of a neglected but important fact of real world credit markets: financial intermediaries have the capability of properly assessing risk components and manage loss given default (LGD) in order to control overall credit risk.

Using a reversible addition fragmentation chain transfer reaction, a series of resins were prepared by using N, N-diethyl acrylamide (DEA), poly (ß-hydroxyethyl methacrylate) (PHEMA) as hydrophilic blocks and poly (glycidyl methacrylate) (PGMA) as hydrophobic blocks (and as a target for immobilizing penicillin G acylase [PGA]) and the low critical solution temperature (LCST) of which could be adjusted by changing the segment length of blocks.

To make the catalytic conversion temperature of immobilized PGA fallen into the temperature range of the sol state of thermosensitive block resin, a type of thermosensitive block resin, i.e. PDEA-b-PHEMA-b-PGMA (DHGs) was synthesized to immobilize PGA, and the effect of segment order of block resin was investigated on the performance of PGA.

Carrier prepared with monomers molar ratio of n(DEA) : n(HEMA): n(GMA) = 100: 49: 36 presented loading capacity (L) and enzyme activity recovery ratio (Ar) of 110 mg/g and 90%, respectively, and a block resin with LCST value of 33 °C was essential for keeping higher Ar of PGA.

PGA has become an important biocatalyst in modern chemistry industry. However, disadvantages include difficulty in separation, poor repeatability and high cost, which limits the scope of PGA applications. The effective method is to immobilize the enzyme to the carrier, which could overcome the disadvantage of free enzyme.

This study aims to analyse the institutional changes in the Spanish labour market in the light of the measures introduced to support workers during the COVID-19 crisis. Applying the theoretical framework the authors’ hypothesis is that the labour policy response to the crisis provoked by COVID-19 in Spain has ranged from strategy of preservation of the social democratic coalition to the anti-bourgeois bloc coalition with a greater presence of social pacts and the support of the social partners.

Combining the institutional theory of liberalisation trajectories, the four ideal-typical reform strategies and the social pacts literature, the authors analyse the change in the labour market policy orientation during the COVID-19 economic crisis in Spain.

In comparison to the Great Recession labour policy response, short-time work schemes and new benefits have characterised the 2020 labour policy strategy. Then, the labour policy response has oscillated between, on the one hand, a strategy of preservation of the social democratic coalition, which is characterised by measures to protect workers on the margins of the labour market without affecting the discretionary power of employers. On the other hand, a strategy of the anti-bourgeois bloc coalition, reflected in the employment safeguard clause that attempts to limit both external numerical flexibility and the increase in unemployment. Finally, the authors have analysed whether the labour policies after the COVID-19 crisis constitute a new round of social pacts in Spain and how this took place. They conclude that the main measures approved in the area of employment protection have been supported by social pacts and the social partners (trade unions and employers), as reflected in the signing of the Social Agreement in Defence of Employment (ASDE).

To the best of the authors’ knowledge, this is a significant contribution as it is the first article to point out that the labour policy represents a change in the trajectory of liberalisation, limiting the discretionary power of employers and re-regulating the labour market. The main measure of (re)regulation has been to safeguard employment and to avoid objective or unfair dismissals, which is the traditional form of adjustment. In other words, internal numerical flexibility has been promoted over external flexibility, thus significantly modifying the orientation of labour policy. Finally, the authors have found that social pacts have allowed for greater institutional coherence between legal changes and the behaviour of employers and workers.

Since the late 1970s, the study of the role, structure and functions of personnel management in the United Kingdom has been greatly facilitated by surveys emerging from a number of large‐scale surveys. A major interest in interpreting the data from these surveys has been to evaluate the impact of recession, and, latterly, recovery on the power, structure and roles of personnel departments and personnel specialists in recent years. The survey data are used comparatively to evaluate the empirical plausibility of the different scenarios which have arisen, and to account for the results that emerge.

The aim of this chapter is to provide a literature review on daily recovery during non-work time. Specifically, next to discussing theories that help us understand the process of recovery, we will clarify how recovery and its potential outcomes have been conceptualized so far. Consequently, we present empirical findings of diary studies addressing the activities that may facilitate or hinder daily recovery. We will pay special attention to potential mechanisms that may underlie the facilitating or hindering processes. Owing to the limited research on daily recovery, we will review empirical findings on predictors and outcomes of a related construct, namely need for recovery. We conclude with an overall framework from which daily recovery during non-work time can be understood. In this framework, we claim that daily recovery is an important moderator in the process through which job characteristics and their related strain may lead to unfavorable states on a daily basis.

After initially positioning this paper within the broader mental health recovery literature, this paper aims to highlight the role that physical activity can play in promoting social inclusion and social recovery for those experiencing mental health challenges.

This conceptual paper draws together the limited, but growing, research on how physical activity can facilitate improved social inclusion and benefit an individual’s recovery.

For individuals suffering with mental health challenges, not being able to exercise their right to inclusion is concerning from a recovery perspective, because experiencing social inclusion is recognised as a facilitator of recovery. Initial research has demonstrated by embracing community inclusion and supporting initiatives such as physical activity programs, mental health services can better facilitate individuals’ journeys towards social inclusion and social recovery.

Future research should appreciate the interplay between inclusion, recovery and physical activity. Collaborating with individuals with lived experience, peer mentors and social prescribing teams to explore options for physical activity within local communities fosters empowerment, social inclusion and ensures interventions align with individuals’ preferences and needs.

Practitioners in health service and community settings should recognise the wide-ranging benefits of physical activity for individuals with mental health challenges, especially in terms of helping their social inclusion and social recovery.

This paper is unique in synthesising the mental health literature relating to social inclusion, social recovery and physical activity. Initial findings show promise, but more attention is needed to explore the relationship between these elements and how individuals experiencing mental health challenges can be supported using physical activity.