In this paper, we formulate and investigate a two-microorganism and single nutrient chemostat model with Monod-Haldane response function and random perturbation. First, for the corresponding deterministic system, we introduce the conditions of the stability of the equilibrium points. Then, using Lyapunov function and Itô’s formula, we investigate the existence and uniqueness of the global positive solution of the stochastic chemostat model. Furthermore, we explore and obtain the criterions of the extinction and the permanence for the stochastic model. Finally, numerical simulations (...) are carried out to illustrate our main results. (shrink)

The distinguished American civil rights leader, W. E. B. Du Bois first published these fiery essays, sketches, and poems individually nearly 80 years ago in the Atlantic, the Journal of Race Development, and other periodicals. This volume has long inspired readers with its militant cry for social, political, and economic reforms for black Americans.

A moving cultural biography of abolitionist martyr John Brown, by one of the most important African-American intellectuals of the twentieth century. In the history of slavery and its legacy, John Brown looms large as a hero whose deeds partly precipitated the Civil War. As Frederick Douglass wrote: "When John Brown stretched forth his arm... the clash of arms was at hand." DuBois's biography brings Brown stirringly to life and is a neglected classic.

'The problem of the twentieth-century is the problem of the color-line.' Originally published in 1903, The Souls of Black Folk is a classic study of race, culture, and education at the turn of the twentieth century. With its singular combination of essays, memoir, and fiction, this book vaulted W. E. B. Du Bois to the forefront of American political commentary and civil rights activism. The Souls of Black Folk is an impassioned, at times searing account of the situation of African (...) Americans in the United States. Du Bois makes a forceful case for the access of African Americans to higher education, memorably extols the achievements of black culture (above all the spirituals or 'sorrow songs'), and advances the provocative and influential argument that due to the inequalities and pressures of the 'race problem', African American identity is characterized by 'double consciousness'. This edition includes a valuable appendix of other writing by Du Bois, which sheds light on his attitudes and intentions. ABOUT THE SERIES: For over 100 years Oxford World's Classics has made available the widest range of literature from around the globe. Each affordable volume reflects Oxford's commitment to scholarship, providing the most accurate text plus a wealth of other valuable features, including expert introductions by leading authorities, helpful notes to clarify the text, up-to-date bibliographies for further study, and much more. (shrink)

Problem and Project Based Learning (PBL) has been used as an educational philosophy and methodology in the construction of a student centered and contextualized learning environment. PBL is also regarded as an effective method in producing engineering graduates who can not only meet the needs of professional competences but are also prepared for new challenges in the globalized and technological context. However, can PBL be a solution to the challenge of a general lack of university students studying engineering and technology (...) in many countries? Gender and Diversity in a Problem and Project Based Learning Environment presents an ethnographical study on the learning experiences of engineering students in the PBL environment in Denmark, and it attempts to question the issue of diversity in engineering education via the exploration of which ways the PBL environment is friendly to diverse groups of learners such as women. (shrink)

Both "dialectical contradiction" and "logical contradiction" use the word "contradiction." This is misleading; it may easily lead people to believe that the word "contradiction" has only one meaning and thus confuse dialectical contradiction with logical contradiction. As a matter of fact, in dialectics and logic "contradiction" implies different things. "Contradiction" as used in dialectics refers to the two contradictory aspects in a thing. In contrast, "contradiction" as described in formal logic means the self-contradictoriness in thinking. For example, contradictions between the (...) productive forces and the relations of production, between one's merits and weaknesses, and between getting rid of the stale and taking in the fresh are all dialectical contradictions. "At once a man and a not-man," "at once existent and non-existent," "at once meritorious and non-meritorious," and so forth are all logical contradictions. The law of contradiction of formal logic excludes only the self-contradictoriness in thinking and has nothing to do with dialectical contradiction. The law of contradiction says that there can be no"A and not-A." That is to say, "A and not-A" is the logic contradiction that the law of contradiction should rule out. If we admit that dialectical contradiction is not logical contradiction, we then cannot describe dialectical contradiction as "A and not-A.". (shrink)

This book offers a critical feminist perspective on the widely debated topic of transitional justice and forgiveness. Louise Du Toit examines the phenomenon of rape with a feminist philosophical discourse concerning women’s or ‘feminine’ subjectivity and selfhood. She demonstrates how the hierarchical dichotomy of male active versus female passive sexuality – which obscures the true nature of rape – is embedded in the dominant western symbolic frame. Through a Hegelian and phenomenological reading of first-person accounts by rape victims, she excavates (...) an understanding of rape that also starts to open up a way out of the denial and destruction of female sexual subjectivity. (shrink)

Paradox is a logical phenomenon. Usually, it is produced in type theory, on a type Ω of “truth values”. A formula Ψ (i.e., a term of type Ω) is presented, such that Ψ↔¬Ψ (with negation as a term¬∶Ω→Ω)-whereupon everything can be proved: In Sect. 1 we describe a general pattern which many constructions of the formula Ψ follow: for example, the well known arguments of Cantor, Russell, and Gödel. The structure uncovered behind these paradoxes is generalized in Sect. 2. This (...) allows us to show that Reynolds' [R] construction of a typeA ≃℘℘A in polymorphic λ-calculus cannot be extended, as conjectured, to give a fixed point ofevery variable type derived from the exponentiation: for some (contravariant) types, such a fixed point causes a paradox.Pursueing the idea that $$\frac{{{\text{type theory}}}}{{{\text{categorical interpretation}}}} = \frac{{{\text{(propositional) logic}}}}{{{\text{Lindebaum algebra}}}}$$ the language of categories appears here as a natural medium for logical structures. It allows us to abstract from the specific predicates that appear in particular paradoxes, and to display the underlying constructions in “pure state”. The essential role of cartesian closed categories in this context has been pointed out in [L]. The paradoxes studied here remain within the limits of the cartesian closed structure of types, as sketched in this Lawvere's seminal paper — and do not depend on any logical operations on the type Ω. Our results can be translated in simply typed λ-calculus in a straightforward way (although some of them do become a bit messy). (shrink)

Jessica du Toit wonders if our relationship with our pets can be morally defended.

Housed in one volume for the first time are several of the seminal essays on Du Bois's contributions to sociology and critical social theory: from DuBois as inventor of the sociology of race to Du Bois as the first sociologist of American religion; from Du Bois as a pioneer of urban and rural sociology to Du Bois as innovator of the sociology of gender and culture; and finally from Du Bois as groundbreaking sociologist of education and cultural criminologist to Du (...) Bois as critic of the disciplinary decadence of the discipline of sociology. Unlike any other anthology or critical reader on Du Bois, this new volume offers an excellent overview of the critical commentary on arguably one of the most imaginative and innovative, perceptive and prolific founders of the discipline of sociology. (shrink)

本书分上下两篇。上篇论述了中国传统文化的根本精神、和谐精神的基本特征及其评价、和谐精神产生的基本条件、和谐精神的三大内涵;下篇系统阐述了儒家、道家、禅宗的和谐美学,并对其进行了比较。.

It has often been claimed that without drastic conceptual innovations a genuine explanation of quantum interference effects and quantum randomness is impossible. This book concerns Bohmian mechanics, a simple particle theory that is a counterexample to such claims. The gentle introduction and other contributions collected here show how the phenomena of non-relativistic quantum mechanics, from Heisenberg's uncertainty principle to non-commuting observables, emerge from the Bohmian motion of particles, the natural particle motion associated with Schrödinger's equation. This book will be of (...) value to all students and researchers in physics with an interest in the meaning of quantum theory as well as to philosophers of science. (shrink)

New foreword written by HeritageMom, Amber O'Neal Johnston. "During a time when the United States needed to be reminded of the contributions Black people have made to its democracy, freedom, music, literature, and more, W.E.B. Du Bois took on the task of enumerating the gifts that we've provided to our country. "When I began reading The Gift of Black Folk...the story that unfolded was one that I had never anticipated. We the People of the United States, all of us, have (...) left our indelible mark on America the Beautiful." -Amber O'Neal Johnston In 1924, William Edward Burghardt (W.E.B.) Du Bois (1868-1963) penned The Gift of Black Folk in response to systemic racism in the United States, showing that "...the American spirit is a new and interesting result of diverse threads of thought and feeling coming not only from America but from Europe and Asia and indeed from Africa." Du Bois was the first African American to earn a Ph.D. from Harvard University, and later became a professor of history, sociology, and economics at Atlanta University. In 1909 he co-founded the NAACP. Du Bois was a lifelong leader and proponent of civil rights. Amber O'Neal Johnston is a writer, speaker, and home educator who blends life-giving books with a culturally-rich environment for her four children and others. She's the author of A Place to Belong, a guide for families of all backgrounds to celebrate cultural heritage and embrace inclusivity in the home and beyond, and she's known for sharing literary "mirrors and windows" on HeritageMom.com. (shrink)

"El libro que publicamos hoy no tiene otro fin que servir de guía a los espíritus deseosos de profundizar los problemas generales del Derecho; es una “Introducción” en el sentido más exacto del término. Se trata de orientar progresivamente al lector partiendo de las realidades más simples para llevarlo después hasta los problemas más abstractos. Hemos renunciado deliberadamente a dar a los primeros capítulos un rigor científico. Igualmente, hemos evitado de pronto los términos técnicos, esforzándonos por explicarlos y hacerlos asimilar (...) gradualmente en el curso de la obra". Claude Du Pasquier. (shrink)

Vincent du Bois est sculpteur sur pierre. Il a appris à tailler le marbre au pied des carrières de Carrare. Mais sa passion pour Michel-Ange ne l'empêche pas de se définir comme un artiste contemporain. De nos jours, le corps à corps avec la matière n'est plus une étape indispensable pour que l'oeuvre prenne forme. Le sculpteur peut programmer une machine pour se charger de ce travail. En tant qu'artiste, mais aussi en tant que penseur et citoyen, Vincent du Bois (...) interroge cette virtualisation de notre société qui contourne le rapport direct avec la matière et le sens du touché en donnant les pleins pouvoirs à la vue.0Il nous montre comment la révolution numérique, phénomène unique par son ampleur dans l'histoire humaine, signe le triomphe de l'abstraction sur la sensation. Vincent du Bois écrit en sculpteur. Il creuse l'essence des choses comme on taille un bloc, procédant par épanelages successifs jusqu'à ce que se révèle la forme sous-jacente. Elle prend ici les traits d'une question : quel pourra être le rôle du corps dans une société vouée aux écrans? (shrink)

Using a sample of Chinese listed firms for the period of 2004–2010, this study examines the impact of religion on corporate philanthropic giving. Based on hand-collected data of religion and corporate philanthropic giving, we provide strong and robust evidence that religion is significantly positively associated with Chinese listed firms’ philanthropic giving. This finding is consistent with the view that religiosity has remarkable effects on individual thinking and behavior, and can serve as social norms to influence corporate philanthropy. Moreover, religion and (...) corporate philanthropic giving have a significantly weaker (less pronounced) positive association for state-owned enterprises than for non-state-owned enterprises. The results are robust to a variety of sensitivity tests. Our results highlight religious influence on corporate philanthropic giving in contemporary China, an old traditional country with a typical communist economy. (shrink)

W. E. B. Du Bois was a public intellectual, sociologist, and activist on behalf of the African American community. He profoundly shaped black political culture in the United States through his founding role in the NAACP, as well as internationally through the Pan-African movement. Du Bois's sociological and historical research on African-American communities and culture broke ground in many areas, including the history of the post-Civil War Reconstruction period. Du Bois was also a prolific author of novels, autobiographical accounts, innumerable (...) editorials and journalistic pieces, and several works of history. Collected in one volume for the first time, The World and Africa and Color and Democracy are two of W E. B. Du Bois's most powerful essays on race. He explores how to tell the story of those left out of recorded history, the evils of colonialism worldwide, and Africa's and African's contributions to, and neglect from, world history. More than six decades after W. E. B. Du Bois wrote The World and Africa and Color and Democracy, they remain worthy guides for the twenty-first century. With a series introduction by editor Henry Louis Gates, Jr., and two introductions by top African scholars, this edition is essential for anyone interested in world history. (shrink)

Using a sample of Chinese listed firms in polluting industries for the period of 2008–2010, we empirically investigate whether and how Buddhism, China’s most influential religion, affects corporate environmental responsibility (CER). In this study, we measure Buddhist variables as the number of Buddhist monasteries within a certain radius around Chinese listed firms’ registered addresses. In addition, we hand-collect corporate environmental disclosure scores based on the Global Reporting Initiative (GRI) sustainability reporting guidelines. Using hand-collected Buddhism data and corporate environmental disclosure scores, (...) we provide strong and robust evidence that Buddhism is significantly positively associated with CER. This finding is consistent with the following view: Buddhism can serve as social norms to evoke the consciousness of social responsibility, and thereof strengthen CER. Our findings also reveal that the positive association between Buddhism and CER is attenuated for firms with higher law enforcement index. The results are robust to various measures of Buddhism and a variety of sensitivity tests. (shrink)