No / The growing demand for high-quality middle distillates is increasing worldwide, whereas the demand for low-value oil products, such as heavy oils and residues, is decreasing. Thus, maximizing the production of more liquid distillates of very high quality is of immediate interest to refiners. At the same time, environmental legislation has led to more strict specifications of petroleum derivatives. Hydrotreatment (HDT) of crude oil is one of the most challenging tasks in the petroleum refining industry, which has not been reported widely in the literature. In this work, crude oil was hydrotreated upon a commercial cobalt¿molybdenum on alumina (Co¿Mo/¿-Al2O3) catalyst presulfided at specified conditions. Detailed pilot-plant experiments were conducted in a continuous-flow isothermal trickle-bed reactor (TBR), and the main hydrotreating reactions were hydrodesulfurization (HDS), hydrodenitrogenation (HDN), hydrodeasphaltenization (HDAs), and hydrodemetallization (HDM), which includes hydrodevanadization (HDV) and hydrodenickelation (HDNi). The reaction temperature (T), the hydrogen pressure (P), and the liquid hourly space velocity (LHSV) were varied with certain ranges, with constant hydrogen to oil (H2/Oil) ratio. The effects of T, P, and LHSV on the conversion of sulfur, nitrogen, vanadium, nickel, and asphaltene were studied. The results showed that high T and P and low LHSV in HDS, HDN, HDV, HDNi, and HDAs of crude oil improve the sulfur (S), nitrogen (N), metals [vanadium (V) and nickel (Ni)], and asphaltene (Asph) conversion. The hydrotreated crude oil has been distilled into the following fractions: light naphtha (LN), heavy naphtha (HN), heavy kerosene (HK), light gas oil (LGO), and reduced crude residue (RCR), to compare the yield of these fractions produced by distillation after the HDT process to those produced by conventional methods (i.e., HDT of each fraction separately after the distillation). The yield of the middle distillate showed greater yield compared to the middle distillate produced by conventional methods. The properties of RCR produced using both methods are also discussed.

No description available.

No / The Politics of Truth Management in Saudi Arabia argues that there are two interrelated notions which articulate the ways in which ‘truth’ is conceptualised in Islam. One, at macro level, constitutes the trans-historical foundational principles of the religion, a set of engrained beliefs, which establish the ‘finality’, and ‘oneness’ of Islam in relation to other competing narratives. The other, at a micro level, takes place internally to find ‘truth’ within the ‘truth’. Unlike Islamic truth at the macro level, which is entrenched, the Islamic truth at the micro level refers to the various attempts by different agencies to claim to have found the ‘truth’ within the ‘truth’. 　Wahhabism, which is the product of an eighteenth century revivalist movement, is portrayed as the most ‘authentic’ reading of Islam. It is seen as the raison d'être for the prevailing political mechanism in the country and is introduced as an example of truth management at the micro level. Arguing that truth is not born in a power vacuum and often its construction and institutionalisation signify domination in one way or another, this book will be of interest to students of Religion, Politics, and Saudi Politics more specifically.

No / The notion of the creative sector/class has been very much put on the map by the recent writings of Richard Florida. The most distinctive feature of the creative class literature is that it seems to minimize the importance of conflict and exploitation which have been the hallmark of the original uses of the concept of class in social analysis. Inevitably, debate must also rage as to who is to be included in the definition of a creative class which, under Florida's broadest definition, has controversially expanded to include psychiatrists amongst others.

No / Market structure affects the informational and real frictions faced by traders in equity markets. Using bid-ask spreads, we present evidence which suggests that while real frictions associated with the costs of supplying immediacy are less in order-driven systems, informational frictions resulting from increased adverse selection risk are considerably higher in these markets. Firm value, transaction size and order location are all major determinants of the trading costs borne by investors. Consistent with the stealth trading hypothesis of Barclay and Warner (1993), we report that informational frictions are at their highest for medium size trades that go through the order book. Finally, while there is no doubt that the total costs of trading on order-driven systems are lower for very liquid securities, the inherent informational inefficiencies of the trading format should not be ignored. This is particularly true for the vast majority of small to mid-size stocks that experience infrequent trading and low transaction volume.

No / Purpose – The purpose of this paper is to explore the role of visible body piercings (VBP) in explaining the extent of self‐reported workplace sexual orientation discrimination. Design/methodology/approach – Using the 2002 wave of the UK Gay Mens’ Sex Survey, OLS and logit equations are estimated to analyse the extent of self‐reported denial of job opportunities. Findings – The possession of visible body piercings is shown to increase the level of discriminatory activity. There is evidence that tongue piercings are the major contributory type of body decoration. The overall effect is seemingly ameliorated for those gay men who engage in more extensive concealment effort with regard to their sexual orientation. Research limitations/implications – The sample is to some extent self‐selecting, which may affect the results. Further studies using alternative methodologies would be required to explore this issue. Practical implications – This paper sheds light on the importance, or otherwise, of presumed visual clues such as body piercing in triggering discriminatory behaviour towards gay men. Originality/value – This is the first study to examine the self‐reported experience of post‐entry discrimination by gay men using a major national survey comprising over 15,000 observations.

No / The enactment of a third statutory union recognition procedure in Britain in 2000 led to a sharp rise and then fall in the number of new, largely voluntary, union recognition agreements being signed. This article examines and explains this trajectory, finding that the interaction of a weak procedure with its wider environment has led to a situation where the outcome of a reflexive law is heavily determined by the external balance of power in employment relations.

No / We propose a fuller synthesis between two relatively disjointed literatures to create synergy. Union commitment research has a long tradition and a relatively rigorous orientation grounded in industrial psychology. Recently, it has been eclipsed by emerging research on union renewal, and specifically that on union organizing. Renewal research has largely ignored union commitment research even though union renewal literature stresses the importance of activism, and this concept is strongly linked to commitment. A critical synthesis of these literatures yields progress in terms of addressing key qualitative and quantitative aspects of the contemporary crisis of labour unionism. A tentative framework is constructed that stipulates the main components and variables, and offers guidance for future research.

No / This article examines whether the downward trajectory in strike activity in nine Western European economies has continued over recent years. In doing so, it considers the nature of the dominant forms of extant strike activity and how these relate to systems of collective bargaining and political exchange. The main findings are three-fold. First, while there has been a general decline in aggregate strike activity, this has often been punctuated by sharp peaks. Second, the dominant nature of the strike activity, especially the sharp peaks, has become increasingly concerned with mounting demonstrative collective mobilizations in the political, rather than industrial, arena. Consequently, much strike activity is increasingly being deployed as a tool of political leverage with governments rather than as a tool of industrial leverage with (private sector) employers. Third, official data on strikes are becoming increasingly unreliable as they contain ever more significant exclusions, raising not so much the prospect of an end to quiescence but an over-estimation of the extent of decline.

Yes / This article investigates the process of moving on from redundancy in the Welsh steel industry among individuals seeking new careers. It identifies a spectrum of career change experience, ranging from those who had actively planned their career change, prior to the redundancies, to those ‘at a career crossroads’, for whom there were tensions between future projects, present contingencies and past identities. It suggests that the process of moving on from redundancy can be better understood if we are able to identify, not just structural and cultural enablers and constraints but also the temporal dimensions of agency that facilitate or limit transformative action in the context of critical life events. Where individuals are located on the spectrum of career change experience will depend on the balance of enabling and constraining factors across the four aspects considered, namely temporal dimensions of agency, individuals’ biographical experience, structural and cultural contexts.