Hala Al-Fulaij, Andrea Cipollina, Giorgio Micale, Hisham Ettouney and David Bogle
The purpose of this study is to focus on simulation of wire mesh demisters in multistage flash desalination (MSF) plants. The simulation is made by the use of computational fluid…
Abstract
Purpose
The purpose of this study is to focus on simulation of wire mesh demisters in multistage flash desalination (MSF) plants. The simulation is made by the use of computational fluid dynamics (CFD) software.
Design/methodology/approach
A steady state and two-dimensional (2D) model was developed to simulate the demister. The model employs an Eulerian-Eulerian approach to simulate the flow of water vapor and brine droplets in the demister. The computational domain included three zones, which are the vapor space above and below the demister and the demister. The demister zone was modeled as a tube bank arrange or as a porous media.
Findings
Sensitivity analysis of the model showed the main parameters that affect demister performance are the vapor velocity and the demister permeability. On the other hand, the analysis showed that the vapor temperature has no effect on the pressure drop across the demister.
Research limitations/implications
The developed model was validated against previous literature data as well as real plant data. The analysis shows good agreement between model prediction and data.
Originality/value
This work is the first in the literature to simulate the MSF demister using CFD modeling. This work is part of a group effort to develop a comprehensive CFD simulation for the entire flashing stage of the MSF process, which would provide an extremely efficient and inexpensive design and simulation tool to the desalination community.
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This paper seeks to suggest that social housing can and should be the local hub for cost‐effective, human‐scale health and wellbeing. It aims to explore the way that…
Abstract
Purpose
This paper seeks to suggest that social housing can and should be the local hub for cost‐effective, human‐scale health and wellbeing. It aims to explore the way that community‐based housing providers can help health and social care services to deliver long‐term wellbeing.
Design/methodology/approach
The argument is illustrated with examples of constructive practice drawn from membership of the PlaceShapers Group of housing associations, across different parts of England.
Findings
Localism and promotion of public health lie at the roots of social housing, dating back more than 150 years. Because of their physical stake and presence in communities, social landlords are able to offer combined homes and support in a way and on a scale that few private operators can match. So social housing providers are in a prime position to add value and recast the relationship between health, wellbeing, social care and housing. But social housing organisations and their leaders will need to be highly inventive, enterprising and determined to reap the full rewards for service users and neighbourhoods.
Practical implications
Changes to the health, wellbeing and social care landscape, coming into effect in England and Wales from April 2013, present a unique opportunity to bridge the “parallel worlds” of housing and health. Local housing providers now have the chance to bond their long‐term presence, commitment and investment in communities to the new outcomes required for health and social care.
Originality/value
The lead author is chair of a grouping of community‐based housing associations working throughout England and is especially well placed to identify examples of innovative practice, such as those described in the paper.
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Rowena Senior, Elizabeth Cleaver, Gilmar Queiros, Helen King and Kirstin Barnett
This discussion paper supports the new development of Apprenticeships at Level 8 of the UK’s Framework for Higher Education Qualifications (QAA, 2014). This exciting development…
Abstract
Purpose
This discussion paper supports the new development of Apprenticeships at Level 8 of the UK’s Framework for Higher Education Qualifications (QAA, 2014). This exciting development, one that employers and universities had been waiting for paves the way for, apprenticeships, sold as the ladder of opportunity, to go all the way to the top.
Design/methodology/approach
Here, we explore in brief the emergence of the new apprenticeship landscape and the importance of the addition of this new highest of levels.
Findings
Importantly, however, we make the case that such progress needs to be met with an equally progressive approach to the design of the new doctoral pathway.
Research limitations/implications
We sketch out a possible shell for the assessment of a Doctoral Apprenticeship, one that allows for flexible occupationally relevant inputs to create an applicable role-based and academically rigourous whole.
Originality/value
The importance of such a design is discussed within the context of the potential for impact in three priority areas: social justice, broadening the talent pool and ensuring the relevance and sustainability of the doctoral award.
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There have been times in recent years when it has seemed that the US economy, in particular, has defied economic gravity. This was certainly the case in the late nineties of the…
Abstract
There have been times in recent years when it has seemed that the US economy, in particular, has defied economic gravity. This was certainly the case in the late nineties of the twentieth century. Many heaved a sigh of relief when the Nasdaq and the Dow responded to the pull of economic gravity and fell to earth in the early part of the twenty first century. The Earth at the time, in 2002, appeared to be indices of around 8,000 for the Dow and 1,250 for the Nasdaq. These measures still indicated huge wealth in terms of saleable bits of paper as well, indicating the underlying huge capacity of the real economy for creating surpluses. Both indices climbed back, though the Nasdaq was a long way from its astronomic former heights before the next (2007) crisis hit. True to the cyclical record of modern capitalism, however, by 2006 the US and the world stock markets were booming again. The nominal value of shares traded worldwide in 2006 by some estimates was nearly $70 trillion (Bogle, 2005). In 2007, another crisis appeared, ushered in supposedly by the collapse of the sub-prime mortgage market in the United States; subsequent events took their toll in economic and financial terms not only in the United States but worldwide in most of the major economies. The terms “credit crunch” and “sub-prime” had become so pervasive within a few weeks of the onset of the latest economic crisis that by July 2008, the Concise Oxford Dictionary provided definitions for them. While these terms are now embedded in the language of economics and everyday speech, inevitably the affected economies will recover from the crises and continue to grow. While there is no shortage of reasons posited for the latest crisis and those preceding it, far fewer explanations have been forwarded to tell us why economies survive economic shocks and, despite dire predictions and expressions of gloom, recent crises have not been as disastrous as was once the case, notably as in the Depression years of the 1930s. During the Depression of the Thirties, production fell by a third between 1929 and 1933, unemployment reached 13 million and even by 1938 one person in five were unemployed. No economist has predicted these dire consequences even for the crisis of 2007–2009. In 1999, Paul Krugman published his short book: The Return of Depression Economics in which he not only reminded us of the 1930s Depression but suggested that the then economic crises bore an “eerie resemblance to the Great Depression.”1 He retreats within a few pages and describes the events as the Great Recession because the global damage has been “well short of Depression levels” (Krugman, 1999). A decade later, Krugman, by then a Nobel laureate for economics in 2008, began his 2009 revised edition of Return of Depression Economics thus: “The world economy is not in depression: it probably won't fall into depression (though I wish I could be completely sure about that)” (Krugman, 2009). By early January 2009, he surprised other economic commentators by using the term “depression” in his New York Times column.
This study compares filmic and televisual representations of fictional black presidents to white Americans’ reactions to the advent of the United States’s first African American…
Abstract
Purpose
This study compares filmic and televisual representations of fictional black presidents to white Americans’ reactions to the advent of the United States’s first African American president. My main goal is to determine if there is convergence between these mediated representations and whites’ real-world representations of Barack Obama. I then weigh the evidence for media pundits’ speculations that Obama owes his election to positive portrayals of these fictional heads of state.
Methodology/approach
The film and television analyses examine each black president’s social network, personality, character traits, preparation for office, and leadership ability. I then compare the ideological messages conveyed through these portrayals to the messages implicated in white Americans’ discursive and pictorial representations of Barack Obama.
Findings
Both filmic and televisual narratives and public discourses and images construct and portray black presidents with stereotypical character traits and abilities. These representations are overwhelmingly negative and provide no support for the argument that there is a cause–effect relationship between filmic and televisual black presidents and Obama’s election victory.
Research implications
Neither reel nor real-life black presidents can elude the representational quagmire that distorts African Americans’ abilities and diversity. Discourses, iconography, narratives, and other representations that define black presidents through negative tropes imply that blacks are incapable of effective leadership. These hegemonic representations seek to delegitimize black presidents and symbolically return them to subordinate statuses.
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Florence Gwendolyn Rose and Tony Leiba
Mental health is an underdeveloped service to the population generally and to African-Caribbean in particular. There is a need for more sensitive diagnosing, treatment and care…
Abstract
Mental health is an underdeveloped service to the population generally and to African-Caribbean in particular. There is a need for more sensitive diagnosing, treatment and care. African-Caribbean people are asking for a more culturally competent mental healthcare system.
This chapter aims to address the following issues: how African-Caribbean people reflect on mental health and mental ill health. Their reflections are drawn from interviews done with African-Caribbean people who are involved with Hagar, a mental health charity in Lewisham, London. Mental health and mental illnesses will be examined, followed by the Psychiatrists’ use of the diagnostic tools that do a disservice to Black people. The Trans-Atlantic slave trade and its contribution to the mental ill health of Black people will be addressed, thus providing a historical underpinning for much of Black people’s struggle with mental ill health. Racism and its contribution to mental health issues will be presented. The views of the Black Psychiatrist Franz Fanon will be argued as a way of understanding oppression, alienation and mental ill health in Black people, and going on to open up ways of providing treatment and care. Finally suggestions will be made about how to provide a culturally competent mental health service to African Heritage peoples.
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Hossein Varamini and Svetlana Kalash
The main purpose of this study is to use the Sharpe Ratio to test the efficient market hypothesis for different market capitalization and investment styles of mutual funds. The…
Abstract
The main purpose of this study is to use the Sharpe Ratio to test the efficient market hypothesis for different market capitalization and investment styles of mutual funds. The results of the study for the entire period of 1994‐2007 as well as the two subperiods (1994‐1999 and 2000‐2007) indicate that small cap funds have provided the highest risk‐adjusted return for the entire period whereas growth funds have exhibited lower returns. The findings, therefore, suggest that the mutual funds market is not always efficient, which makes it possible for an investor or a mutual fund manager to earn excess return on a risk‐adjusted basis.
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Efforts to make the television landscape more equitable for people of color have been evident both within and outside the industry as early as the 1940s. These advancements made…
Abstract
Efforts to make the television landscape more equitable for people of color have been evident both within and outside the industry as early as the 1940s. These advancements made by individuals within broadcasting were an attempt to allow more people of color to get opportunities to prove themselves competent in front of and behind the scenes in broadcast television. While these early attempts were ultimately unsuccessful, they laid the groundwork for future diversity initiative efforts. The purpose of this chapter is to expose the landmark events that introduced changes in diversity policy that eventually resulted from diversity initiatives at NBC despite the racial barriers within its corporate structure. This chapter will show that the trajectory of these early events exhibits that the diversity initiatives seen today resulted from decades of pressure from the government, the press and outside citizen activist groups.
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The term reformism has been in frequent use by leftist critics who have seen reform as the biggest enemy of the revolution. If the capitalist system were proved to be in danger of…
Abstract
The term reformism has been in frequent use by leftist critics who have seen reform as the biggest enemy of the revolution. If the capitalist system were proved to be in danger of collapsing under its own weight, then intervention by the “bourgeois” state to reform the system and to make concessions to, say, labour, then the system would continue essentially unchanged. Examples of reformism are, therefore, free elementary and secondary education for all, the welfare state generally, trade union legislation permitting collective bargaining and so on. The main philosophical ideologist of such reformist strategy was originally John Stuart Mill, simultaneously a classical economist and utilitarian and proponent of reformist tendencies and government intervention. The term reformism is also applied to the political process whereby socialism might be implemented through parliamentary means. The working-class interest could be introduced into a parliamentary system via the electoral process and lead to reform progressively that would result in steps or increments to a socialist society. This was very much the view of Sidney and Beatrice Webb and their Fabian followers in the Britain. One of the main opponents of reform or social reform, as she put it, was Rosa Luxemburg who saw such a process as leading to the death knell of the German socialism and, by extension, of socialism everywhere (Howard, 1971, p. 52).
Having considered various types of pedagogy as well as technology affordances and multimedia learning principles, this chapter focuses on issues surrounding the representation and…
Abstract
Having considered various types of pedagogy as well as technology affordances and multimedia learning principles, this chapter focuses on issues surrounding the representation and sharing of content using technology. Anderson & Krathwohl’s (2001) Taxonomy of Learning, Teaching and Assessing is examined as a means of conceptualizing different types of thinking processes in a way that can be applied across discipline areas. The representational requirements of different subject areas (English, mathematics, science, history, geography, and computing) are explored by means of examples, with reference to the role of technology and the range of possible tasks that may be utilized. Assessment issues as they relate to the representation of content are also considered. The broader contextual shift toward open education and sharing is discussed, including key drivers such as learning object repositories, open educational resources, Creative Commons licensing, and massive open online courses.