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1

Sullivan, Love Janine, and Ajluni Cheryl J, eds. RF front-end: World class designs. Amsterdam: Newnes/Elsevier, 2009.

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Moodie, Deonnie. Resisting Middle-Class Modernizing Projects. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190885267.003.0005.

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Middle-class modernizers frame their projects at Kālīghāṭ as being in the best interests of the Hindu public in Kolkata. However, so many who frequently worship at the temple or who live and work on temple grounds do not share the desire to transform the temple so that it represents Indian modernity. Lower-class men and women are successful in resisting modernizing projects because they employ tactics that make state control difficult or impossible. These include protests, the formation of political organizations, as well as obstinacy and deception. This chapter demonstrates that while middle-class actors may use the tools of civil society to gain state support for their projects, they are not guaranteed success. Even informal and non-legal tools of what Partha Chatterjee calls “political society” are effective in blocking the enactment of modernizing projects.
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Pollack, Harriet, ed. New Essays on Eudora Welty, Class, and Race. University Press of Mississippi, 2019. http://dx.doi.org/10.14325/mississippi/9781496826145.001.0001.

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Responding to work begun in the 2013 collection Eudora Welty, Whiteness, and Race that mined and deciphered the complexity of her responses to the Jim Crow South, the thirteen diverse voices of New Essays on Eudora Welty, Class, and Race deepen, reflect on, and respond to those seminal discussions. These essays freshly consider such topics as Welty’s treatment of African-American signifying in her short stories, and her attention to public street performances interacting with Jim Crow rules in her unpublished photographs. They consider her strategic adaptations of Gothic plots, black pastoral, civil war stories, haunted houses, and film noir. They frame Welty’s work with such subjects as Bob Dylan’s songwriting, the idea and history of the orphan in American, and standup comedy. They compare her handling of whiteness and race to that of other contemporary authors such as William Faulkner, Richard Wright, Toni Morrison, Chester Himes, and Alice Walker. Additionally, several discussions bring her master-work The Golden Apples and her novel Losing Battles, under-represented in the earlier conversation, into new focus. The collection as a whole will help us to understand more clearly Welty’s artistic commentary on her time and place as well as the way her vision developed in a timespan moving America towards increased social awareness. Moreover, as a group, these essays provide insight into Welty as an innovative craftswoman and modernist technician, successfully altering literary form with her frequent pointed makeovers of familiar story patterns, plots, and genres. Together they show her as a remarkable writer idiosyncratically engaging and confidently altering literary history.
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Gamberini, Andrea. The Clash of Legitimacies. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198824312.001.0001.

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This book aims to make an innovative contribution to the history of the state-building process in late medieval Lombardy (thirteenth–fifteenth centuries), by illuminating the myriad conflicts attending the legitimacy of power and authority at different levels of society. Through the analysis of the rhetorical forms and linguistic repertoires deployed by the many protagonists (not just the prince, but also cities, communities, peasants, and factions) to express their own ideals of shared political life, the work proposes to reveal the depth of the conflicts in which opposing political actors were not only inspired by competing material interests—as in the traditional interpretation to be found in previous historiography—but were often also guided by differing concepts of authority. From this comes a largely new image of the late medieval–early Renaissance state, one without a monopoly of force—as has been shown in many studies since the 1970s—and one that did not even have the monopoly of legitimacy. The limitations of attempts by governors to present the political principles that inspired their acts as shared and universally recognized are revealed by a historical analysis firmly intent on investigating the existence, in particular territorial or social ambits, of other political cultures which based obedience to authority on different, and frequently original, ideals.
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Struthers, David M. The World in a City. University of Illinois Press, 2019. http://dx.doi.org/10.5622/illinois/9780252042478.001.0001.

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This book examines interracial labor and radical organizing in Los Angeles, California, and the United States/Mexico borderlands between 1900 and 1930. Domestic and transnational migration to Los Angeles—including from Europe, Asia, and Mexico—created one of the most racially diverse regions in the United States. Uneven regional economic development drove continued labor mobility for many working-class residents. The book documents a thread of working-class culture in which interracial solidarities formed to oppose capitalism, racism, and often the state itself. These solidarities flourished most frequently among workers with the most precarious employment and living situations, fueled by the ideals advanced in anarchism, socialist internationalism, the syndicalism of the Industrial Workers of the World (IWW) and the Partido Liberal Mexicano (PLM). This book uses the anarchist notion of affinity to frame its understanding of interracial organizing as the mobility of workers often made coalitions and solidarities short lived. Affinity frames the individual cooperative actions that shaped the social practices of resistance often too unstructured or episodic for historians to capture. This approach maintains focus on the continuity of organizing practices while tracing changing solidarities, associations, and organizations that formed and dissolved through struggle, repression, and factionalism. The radical practices that germinated in and near Los Angeles produced some of the broadest examples of interracial cooperation in U.S. history.
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Seddon, Mohammad Siddique. Abdullah Quilliam. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190688349.003.0002.

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This chapter explores the religious and political influences that shaped Abdullah Quilliam’s Muslim missionary activities, philanthropic work and scholarly writings in an attempt to shed light on his particular political convictions as manifest through his unique religiopolitical endeavors. It focuses especially on Quilliam’s Methodist upbringing in Liverpool and his support of the working classes. It argues that Quilliam’s religious and political activism, although primarily inspired by his conversion to Islam, was also shaped and influenced by the then newly emerging proletariat, revolutionary socialism. Quilliam’s continued commitment to the burgeoning working-class trades union movement, both as a leading member representative and legal advisor, coupled with his reputation as the "poor man’s lawyer" because of his frequent fee-free representations for the impoverished, demonstrates his empathetic proximity to working-class struggles.
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Russell, Paul. Moral Sense and the Foundations of Responsibility. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190627607.003.0005.

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This chapter discusses an important class of new compatibilist theories of agency and responsibility, frequently referred to as reactive attitude theories. Such theories have their roots in another seminal essay of modern free will debates, P. F. Strawson’s “Freedom and Resentment” (1962). This chapter disentangles three strands of Strawson’s argument—rationalist, naturalist, and pragmatic. It also considers other recent reactive attitude views that have attempted to remedy flaws in Strawson’s view, focusing particularly on the view of R. Jay Wallace. Wallace supplies an account of moral capacity, which is missing in Strawson’s view, in terms of an account of what Wallace calls “reflective self-control.” The chapter concludes with suggestions of how a reactive attitude approach to moral responsibility that builds on the work of Strawson, Wallace, and others might be successfully developed.
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Nussbaum, Felicity. ‘Mungo Here, Mungo There’. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198812425.003.0002.

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This chapter provides a definitive account of one of Dibdin’s best-known works, The Padlock, which has long been recognized as an important landmark in the representation of black characters in eighteenth-century theatre. The Padlock is most frequently associated with the librettist Isaac Bickerstaff, but this chapter redirects attention to the interaction of Bickerstaff’s words with Dibdin’s music, and to Dibdin’s celebrated performances as Mungo in one of the first comic plays to feature a major character in blackface on the British stage. Placing Mungo in the context of Dibdin’s numerous depictions of racial others (both Black and Oriental), the author argues that Dibdin’s racial performances reflect tensions surrounding slavery, social class, and imperial expansion, but remain stubbornly equivocal about these tensions as they turn captivity, servitude, and chattel slavery into the subject of comedy.
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Bingham, Adam. Autumn Afternoons. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190254971.003.0011.

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This chapter explores the intertextual place and presence of Ozu Yasujiro in the 2004 comedy drama Dogs and Cats by the first-time female director Iguchi Nami. It considers how Ozu as well as the genre, the shomingeki (middle-class home drama) has frequently figured as a marker or signpost of a particular era of cinema, a sociopolitical juncture and/or an attitude to gender in Japan. Taking this intertextuality as a point of departure, the chapter explores how such a presence animates meaning in Iguchi’s film; it analyzes style and structure as a means of elucidating how this young filmmaker distinguishes both herself and the world of her characters through implicit comparison with Ozu. Moreover, it examines how its narrative—about two young women living together under fractious conditions—contributes to discourse on Japanese models of feminisuto filmmaking, the country’s specific sociocultural model of feminism.
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Sanchez, Gabriella E. Portrait of a Human Smuggler. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198814887.003.0003.

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The hypervisibility of contemporary migration flows has generated significant interest in human smugglers, and reports of their activities are ubiquitous. Smugglers as facilitators of irregular migration are most often characterized as young and violent men from the Global South organized in criminal networks who are responsible for the tragic journeys of migrants around the world. Yet despite their frequent appearance in dramatic migration accounts, smugglers have hardly been the subject of empirical inquiry, which has led to the prevalence of male-centred, racialized, and classist characterizations of their activities. This chapter, drawing from structured interviews and participant observation conducted among twelve women charged with human smuggling offences and twenty-five women who travelled with smuggling facilitators in the US states of Arizona and Utah, situates the narratives of smuggling and its intersections with race, class, and gender in the facilitation of border crossings along the US–Mexico border.
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Attanasio, John. Income and Wealth Disparities, and the Demand Curve. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190847029.003.0011.

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The Federal Reserve Bank in May 2016, reported “median family income is in the range between $40,000 and $49,999.” The middle class is shrinking. Income and wealth inequalities are hitting the demand curve causing anemic growth and more frequent, severe economic downturns. In 2011–2012, corporate profits had risen to constitute their largest share of the economy since 1929. The campaign finance cases and the increase in income inequality also appear highly correlated with a steep increase in government deficits and national debt. The logical implication of this work is that democracy may be necessary to establish, or sustain, capitalism. If political power becomes concentrated in relatively few people, then economic power will likely become similarly concentrated: oligarchy will lead to oligopoly. If democracy is necessary to obtain sustained capitalism, and if distributive autonomy is necessary to sustain democracy, it would appear that distributive autonomy is necessary to sustain capitalism.
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Lamont, Michèle, Graziella Moraes Silva, Jessica S. Welburn, Joshua Guetzkow, Nissim Mizrachi, Hanna Herzog, and Elisa Reis. Getting Respect. Princeton University Press, 2018. http://dx.doi.org/10.23943/princeton/9780691183404.001.0001.

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Racism is a common occurrence for members of marginalized groups around the world. This book illuminates their experiences and responses to stigmatization and discrimination by comparing three countries with enduring group boundaries: the United States, Brazil and Israel. The book delves into what kinds of stigmatizing or discriminatory incidents individuals encounter in each country, how they respond to these occurrences, and what they view as the best strategy—whether individually, collectively, through confrontation, or through self-improvement—for dealing with such events. The book draws on more than 400 in-depth interviews with middle- and working-class men and women residing in and around multiethnic cities to compare the discriminatory experiences of African Americans, Black Brazilians, and Arab Palestinian citizens of Israel, as well as Israeli Ethiopian Jews and Mizrahi (Sephardic) Jews. Detailed analysis reveals significant differences in group behavior: Arab Palestinians frequently remain silent due to resignation and cynicism while Black Brazilians see more stigmatization by class than by race, and African Americans confront situations with less hesitation than do Ethiopian Jews and Mizrahi Jews, who tend to downplay their exclusion. The book accounts for these patterns by considering the extent to which each group is actually a group, the sociohistorical context of intergroup conflict, and the national ideologies and other cultural repertoires that group members rely on. The book opens many new perspectives into, and sets a new global agenda for, the comparative analysis of race and ethnicity.
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Wendt, Simon. The Daughters of the American Revolution and Patriotic Memory in the Twentieth Century. University Press of Florida, 2020. http://dx.doi.org/10.5744/florida/9780813066608.001.0001.

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This book is a comprehensive account of the Daughters of the American Revolution (DAR) and its efforts to keep alive the memory of the nation’s past. It argues that, especially prior to World War II, the DAR’s conservative white middle-class members played a vital role in private citizens’ efforts to both bolster patriotism and guard the nation’s gendered and racial boundaries through commemorative practices. The Daughters engaged in patriotic activism long believed to be the domain of men and deliberately challenged male-centered accounts of US nation-building. At the same time, however, their tales about the past helped reinforce traditional notions of femininity and masculinity, reflecting a strong-held belief that any challenge to these traditions would jeopardize the nation’s stability. In a similar fashion, the organization frequently voiced support for inclusive civic nationalism, but deliberately used memory to consolidate Anglo-Saxon whiteness and keep the nation’s racial divisions in place. By closely examining these ambiguities, this study sheds fresh light on white conservative women’s remarkable agency in US nationalism and explains the tenacity of a particular nationalist ideology that deemed ingrained gender and race hierarchies vital to America’s unity and progress.
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Cole, Jean Lee. How the Other Half Laughs. University Press of Mississippi, 2020. http://dx.doi.org/10.14325/mississippi/9781496826527.001.0001.

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In the popular press of the early twentieth century, immigrant masses and the tenement districts were frequently portrayed as occasions for laughter rather than as objects of pity or problems to be solved. This distinctly comic sensibility, most visible in the form of the comic strip, merged the grotesque with the urbane and the whimsical with the cynical, representing the world of what Jacob Riis called the “Other Half” with a jaundiced, yet sympathetic, eye. Various forms of the comic sensibility emerged from a competitive, collaborative environment fostered at newspapers and magazines published by figures including William Randolph Hearst, Joseph Pulitzer, and S. S. McClure. Characterized by a breezy, irreverent style and packaged in eye-catching typography, vibrant color, and dynamic page design, the comic sensibility combined the performative aspects of vaudeville and the variety of stage, the verbal improvisations of dialect fiction, and a multivalent approach to caricature that originated in nineteenth-century comic weeklies, such as Puck and Judge. Though it was firmly rooted in ethnic humor, the comic sensibility did not simply denigrate or dehumanize ethnic and racial minorities. Stereotype and caricature was used not just to make fun of the Other Half, but also to engage in pointed sociopolitical critique. Sometimes grotesque, sometimes shocking, at other times sweetly humorous or gently mocking, the comic sensibility ultimately enabled group identification and attracted a huge working-class audience.
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Maza, Sarah. Bourgeoisie. Edited by William Doyle. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780199291205.013.0008.

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The concept of a group called “the bourgeoisie” is unusual in being both central to early modern and modern European history, and at the same time highly controversial. In old regime France, people frequently used the words “bourgeois” or “bourgeoisie” but what they meant by them was very different from the meaning historians later assigned to those terms. In the nineteenth century the idea of a “bourgeoisie” became closely associated with Marxian historical narratives of capitalist ascendancy. Does it still make sense to speak of a “bourgeoisie”? This article attempts to lay out and clarify the terms of the problem by posing a series of questions about this aspect of the social history of Ancien Régime France, with a brief look across the Channel for comparison. It considers first the problem of definition: what was and is meant by “the bourgeoisie” in the context of early modern French history? Second, what is the link between eighteenth-century economic change and the existence and nature of such a group, and can we still connect the origins of the French Revolution to the “rise” of a bourgeoisie? And finally, can the history of perceptions and representations of a bourgeoisie or middle class help us to understand why the concept has been so problematic in the longer run of French history?
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Roskes, Erik J., and Donna Vanderpool. Forensic issues. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199360574.003.0061.

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A range of forensic psychiatry issues frequently present themselves in correctional settings. Incompetency to stand trial is one such concern. In some states, defendants found incompetent to stand trial must be managed in jail. Litigation is another important issue. Psychiatrists working in correctional settings often have increased litigation risks regarding professional negligence and other forms of liability. Especially important is understanding whether their insurer covers correctional work. One common form of litigation is habeas corpus. For example, a habeas petition could be brought to seek medical interventions denied by the detaining institution, and as such, the medical staff could be named defendants. Many class actions have involved correctional mental health care. Often clinicians working in correctional settings welcome these litigations, as they focus the attention of the courts on deficiencies in care related to inadequate resources. While such lawsuits can be sensitive, especially in the earlier phases when the outcome is in doubt, correctional psychiatrists and other clinicians may also serve as sources of information for each party to the case and to the court. Another key topic is the correctional disciplinary process. Mental health input into the disciplinary process does not address issues of responsibility but is limited to identifying mitigating factors related to mental illness when present, dispositional recommendations when clinically appropriate, and competency-to-proceed issues in the context of the disciplinary hearing. This chapter reviews key issues of relevance to correctional psychiatrists, such as competency restoration, court collaboration, and litigation related concerns.
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Leung, Janny H. C. Shallow Equality and Symbolic Jurisprudence in Multilingual Legal Orders. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780190210335.001.0001.

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This book offers a critical perspective to the proliferation of official multilingualism in the contemporary world. Through diachronic and synchronic comparisons, it shows that official multilingualism has become a norm in the political management of linguistic diversity, but actual practices vary according to sociohistorical contexts and current power dynamics. It explains such convergences and divergences using a theory of symbolic jurisprudence, which posits that official language law has served chiefly as a discursive resource for a range of political and economic functions, such as ensuring stability, establishing legitimacy, balancing rival powers, and harnessing trade opportunities. The book goes on to examine the practical impact of official multilingualism on public institutions and legal processes and the application of linguistic equality—frequently asserted in multilingual polities—on the ground. The study shows that serious pursuit of linguistic equality calls for elaborate administrative effort in public institutions and carries a potential to clash with existing legal practices (from legal drafting and interpretation, to language rights in trial proceedings). However, such changes—however extensive—hardly ever disrupt the status quo. The book further argues that linguistic equality as proclaimed and practiced in many polities today is shallow in character, and must not be confused with popular conceptions of equality. The book concludes that both symbolic jurisprudence and shallow equality are components of a policy of strategic pluralism that underlies official multilingualism. Although official multilingualism can legitimately be used to pursue collective goals, it runs the underlying risks of disguising substantive inequalities and displacing more progressive efforts in social change.
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Holmes, Janice. Methodists and Holiness. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199683710.003.0006.

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Nineteenth-century Britain saw the emergence of a variety of new Dissenting movements which cannot be regarded as belonging to older-established traditions. While some, such as the Brethren, have received considerable attention from historians, others are less well served; indeed, some have discouraged such investigation, partly because of their convictions regarding their divine origin. Consequently, an appreciation of them within their social and religious context has been difficult to achieve. This has been reinforced by the tendency to study such movements in isolation from one another. This chapter establishes where commonalities existed among these movements and between them and Dissent more generally. Those under review fall into several categories. Primitivists looked back to the New Testament as a golden age, from which all subsequent church history had been a decline. The Huntingtonians sought a restoration of a supposed New Testament pattern of spiritual experience. Other primitivists, who may also be called Restorationists, sought to re-establish a pattern of church life replicating that which they read off from the New Testament, or else reacted against such an approach on the basis that it was neither commanded nor possible. Another family of movements adopted a more pragmatic approach, since their primary concern was not the establishment of correct church order but effective evangelism and nurture. The chapter argues that there was a web of connections between these movements, and that they did not in fact develop in isolation from one another. While their pluriformity should not be understated, certain commonalities do emerge. All were suspicious of traditional theological learning. Most emphasized the need for personal conversion. Ecclesiologically, most believed in the sole authority of Scripture, the centrality of communion, the baptism of believers, plural unordained leadership, and often also the autonomy of local congregations; they also tended to be gathered churches. These movements usually began through secession from existing denominations, and this shaped their agenda. A tension felt by most lay between the call for separation from the world and the expression of the unity of all true believers; in several cases, the balance between purity and unity shifted over time. The way in which Scripture was seen as functioning in church life affected the extent and visibility of women’s involvement. Outreach was frequently directed at members of other denominations (who might be regarded as unconverted) as much as at the unchurched. While many of these movements appealed primarily to the working classes and the poor, some such as Brethren and Catholic Apostolics combined this with a middle-class element, and few were democratic in ethos. While there was often a cerebral element to their apologetic, most movements stressed the sovereign freedom of the Holy Spirit to act in and through members. Although their approach to Scripture as propositional truth and their sense of their own mission rendered them liable to division, they have remained a visible part of the British religious landscape to the present.
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Nowak, Dariusz, ed. Production–operation management. The chosen aspects. Wydawnictwo Uniwersytetu Ekonomicznego w Poznaniu, 2021. http://dx.doi.org/10.18559/978-83-8211-059-3.

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The aim of the e-book is to present the theoretical, cognitive and practical aspects of the essence and complexity of operational management in a production company. The presented modern production methods together with the challenges and problems of contemporary enterprises should better help to understand the issues of sustainable development, with particular emphasis on waste. The book consists of six chapters devoted to relevant and topic issues relating to the core business of an industrial enterprise. Chapter 1 The nature of the industrial enterprise is an introduction to further considerations and deals with the essence of the basic aspects of the company. Both popular and less known definitions of an enterprise, its features, functions and principles of operation are presented. An important part of the chapter is the presentation and formulation of strategic, tactical and operational goals. Moreover, the division of enterprises is presented with the use of various criteria and the features of the industrial market, which make it distinct. Chapter 2 The operational management evolution and its role in the industrial enterprise discusses the evolution and concept of production and operational management. The management levels were also presented, indicating their most important functions. An integral part of the chapter is the essence of the production system, viewed through the prism of the five elements. Chapter 3 Functions and role in operations management presents the issues concerning the organization of production processes, production capacity and inventory management. This part also presents considerations on cooperation and collaboration between enterprises in the process of creating value. Chapter 4 Traditional methods used in operational activities focuses on methods such as benchmarking, outsourcing, core competences, JIT, MPR I and MRP II, as well as TQM and kaizen. Knowledge of these methods should contribute to understanding the activities of modern enterprises, the way of company functioning, the realization of production activities, as well as aspects related to building a competitive position. Chapter 5 Modern methods used in production-operations management discusses the less common and less frequently used production methods, based on a modern and innovative approach. In particular, it was focused on: Shop Floor Control and cooperative manufacturing, environment-conscious manufacturing (ECM) and life-cycle assessment ( LCA), waste management and recycling, Electronic Data Interchange (EDI), virtual enterprise, World Class Manufacturing (WCM), Quality Function Deployment (QFD) and House of Quality (HOQ), theory of constraints (TOC), Drum Buffer Rope (DBR), group technology (GT) and cellular manufacturing (CM), Demand Chain Management and competitive intelligence (CI). In the last section discusses: the role of sustainable statistical process control and Computer-Aided Process Planning in context formatting of information management. Chapter 6 Problems of sustainable development and challenges related to production and operations management describes the problem and challenges related to production and operations activities. In particular, attention was paid to the threats related to changes in global warming, the growing scale of waste, or the processes of globalization. It was pointed out that the emerging problem may be both a threat and a chance for the development of enterprises. An integral part of the chapter are also considerations on technical progress, innovation and the importance of human capital in operational activities.
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Alexander, D. J., N. Phin, and M. Zuckerman. Influenza. Edited by I. H. Brown. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0037.

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Influenza is a highly infectious, acute illness which has affected humans and animals since ancient times. Influenza viruses form the Orthomyxoviridae family and are grouped into types A, B, and C on the basis of the antigenic nature of the internal nucleocapsid or the matrix protein. Infl uenza A viruses infect a large variety of animal species, including humans, pigs, horses, sea mammals, and birds, occasionally producing devastating pandemics in humans, such as in 1918 when it has been estimated that between 50–100 million deaths occurred worldwide.There are two important viral surface glycoproteins, the haemagglutinin (HA) and neuraminidase (NA). The HA binds to sialic acid receptors on the membrane of host cells and is the primary antigen against which a host’s antibody response is targeted. The NA cleaves the sialic acid bond attaching new viral particles to the cell membrane of host cells allowing their release. The NA is also the target of the neuraminidase inhibitor class of antiviral agents that include oseltamivir and zanamivir and newer agents such as peramivir. Both these glycoproteins are important antigens for inducing protective immunity in the host and therefore show the greatest variation.Influenza A viruses are classified into 16 antigenically distinct HA (H1–16) and 9 NA subtypes (N1–9). Although viruses of relatively few subtype combinations have been isolated from mammalian species, all subtypes, in most combinations, have been isolated from birds. Each virus possesses one HA and one NA subtype.Last century, the sudden emergence of antigenically different strains in humans, termed antigenic shift, occurred on three occasions, 1918 (H1N1), 1957 (H2N2) and 1968 (H3N2), resulting in pandemics. The frequent epidemics that occur between the pandemics are as a result of gradual antigenic change in the prevalent virus, termed antigenic drift. Epidemics throughout the world occur in the human population due to infection with influenza A viruses, such as H1N1 and H3N2 subtypes, or with influenza B virus. Phylogenetic studies have led to the suggestion that aquatic birds that show no signs of disease could be the source of many influenza A viruses in other species. The 1918 H1N1 pandemic strain is thought to have arisen as a result of spontaneous mutations within an avian H1N1 virus. However, most pandemic strains, such as the 1957 H2N2, 1968 H3N2 and 2009 pandemic H1N1, are considered to have emerged by genetic re-assortment of the segmented RNA genome of the virus, with the avian and human influenza A viruses infecting the same host.Influenza viruses do not pass readily between humans and birds but transmission between humans and other animals has been demonstrated. This has led to the suggestion that the proposed reassortment of human and avian influenza viruses takes place in an intermediate animal with subsequent infection of the human population. Pigs have been considered the leading contender for the role of intermediary because they may serve as hosts for productive infections of both avian and human viruses, and there is good evidence that they have been involved in interspecies transmission of influenza viruses; particularly the spread of H1N1 viruses to humans. Apart from public health measures related to the rapid identification of cases and isolation. The main control measures for influenza virus infections in human populations involves immunization and antiviral prophylaxis or treatment.
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