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Strong and Weak Interactions: Present Problems focuses on the reactions, transformations, and processes involved in strong and weak interaction, including baryonic, mesonic, and strange and non-strange resonances. The selection first offers information on unitary symmetry and hadron and lepton internal symmetries. Topics include internal symmetry for leptons, algebra of the hadron vector current, leptons and hadrons, and the search for higher symmetries. The text then elaborates on algebras and weak interactions and relativistic quark model as representation of algebra. The book takes a look at Regge poles in high-energy scattering and models of strong interactions. Discussions focus on electromagnetic properties, relations among strong vertices, medium-strong mass splittings, moving poles, high-energy kinematics, and Sommerfeld-Watson transformation. The text also ponders on meson resonances, phenomenology of resonances and particle supermultiplets, and meson photoproduction near threshold and commutation algebra. The selection is highly recommended for readers interested in strong and weak interactions.
In spite of the double burden of racial and gender discrimination, African-American women have developed a rich intellectual tradition that is not widely known. In Black Feminist Thought, Patricia Hill Collins explores the words and ideas of Black feminist intellectuals as well as those African-American women outside academe. She provides an interpretive framework for the work of such prominent Black feminist thinkers as Angela Davis, bell hooks, Alice Walker, and Audre Lorde. The result is a superbly crafted book that provides the first synthetic overview of Black feminist thought.
The issues that increasingly dominate the 21st century cannot be solved by any single country acting alone, no matter how powerful. To manage the global economy, prevent runaway environmental destruction, reign in nuclear proliferation, or confront other global challenges, we must cooperate. But at the same time, our tools for global policymaking - chiefly state-to-state negotiations over treaties and international institutions - have broken down. The result is gridlock, which manifests across areas via a number of common mechanisms. The rise of new powers representing a more diverse array of interests makes agreement more difficult. The problems themselves have also grown harder as global policy issues penetrate ever more deeply into core domestic concerns. Existing institutions, created for a different world, also lock-in pathological decision-making procedures and render the field ever more complex. All of these processes - in part a function of previous, successful efforts at cooperation - have led global cooperation to fail us even as we need it most. Ranging over the main areas of global concern, from security to the global economy and the environment, this book examines these mechanisms of gridlock and pathways beyond them. It is written in a highly accessible way, making it relevant not only to students of politics and international relations but also to a wider general readership.
"The ongoing COVID-19 pandemic marks the most significant, singular global disruption since World War II, with health, economic, political, and security implications that will ripple for years to come." -Global Trends 2040 (2021) Global Trends 2040-A More Contested World (2021), released by the US National Intelligence Council, is the latest report in its series of reports starting in 1997 about megatrends and the world's future. This report, strongly influenced by the COVID-19 pandemic, paints a bleak picture of the future and describes a contested, fragmented and turbulent world. It specifically discusses the four main trends that will shape tomorrow's world: - Demographics-by 2040, 1.4 billion people will be added mostly in Africa and South Asia. - Economics-increased government debt and concentrated economic power will escalate problems for the poor and middleclass. - Climate-a hotter world will increase water, food, and health insecurity. - Technology-the emergence of new technologies could both solve and cause problems for human life. Students of trends, policymakers, entrepreneurs, academics, journalists and anyone eager for a glimpse into the next decades, will find this report, with colored graphs, essential reading.
Past experiences of unfreedom and the new freedom; national character and democracy; self-identification in Czech Artistic culture.