Celestial Encounters is for anyone who has ever wondered about the foundations of chaos. In 1888, the 34-year-old Henri Poincaré submitted a paper that was to change the course of science, but not ...before it underwent significant changes itself. "The Three-Body Problem and the Equations of Dynamics" won a prize sponsored by King Oscar II of Sweden and Norway and the journal Acta Mathematica, but after accepting the prize, Poincaré found a serious mistake in his work. While correcting it, he discovered the phenomenon of chaos. Starting with the story of Poincaré's work, Florin Diacu and Philip Holmes trace the history of attempts to solve the problems of celestial mechanics first posed in Isaac Newton's Principia in 1686. In describing how mathematical rigor was brought to bear on one of our oldest fascinations--the motions of the heavens--they introduce the people whose ideas led to the flourishing field now called nonlinear dynamics. In presenting the modern theory of dynamical systems, the models underlying much of modern science are described pictorially, using the geometrical language invented by Poincaré. More generally, the authors reflect on mathematical creativity and the roles that chance encounters, politics, and circumstance play in it.
In the past decades, developments in the fields of medicine, new media, and biotechnologies challenged many representations and practices, questioning the understanding of our corporeal limits. Using ...concrete examples from literary fiction, media studies, philosophy, performance arts, and social sciences, this collection underlines how bodily models and transformations, thought until recently to be only fictional products, have become a part of our reality. The essays provide a spectrum of perspectives on how the body emerges as a transitional environment between fictional and factual elements, a process understood as faction.
Modern electronic devices and novel materials often derive their extraordinary properties from the intriguing, complex behavior of large numbers of electrons forming what is known as an electron ...liquid. This book provides an in-depth introduction to the physics of the interacting electron liquid in a broad variety of systems, including metals, semiconductors, artificial nano-structures, atoms and molecules. One, two and three dimensional systems are treated separately and in parallel. Different phases of the electron liquid, from the Landau Fermi liquid to the Wigner crystal, from the Luttinger liquid to the quantum Hall liquid are extensively discussed. Both static and time-dependent density functional theory are presented in detail. Although the emphasis is on the development of the basic physical ideas and on a critical discussion of the most useful approximations, the formal derivation of the results is highly detailed and based on the simplest, most direct methods.
This compelling chronicle of a controversial figure--a man who could be charming, fanatical, arrogant, and confrontational--places Billy Mitchell in the context of the great debates over U.S. air ...power between the world wars. Mitchell demonstrated during WWI that massive air power could decisively affect combat operations on the ground, and he argued vehemently to anyone who would listen that air power would be the decisive factor in the next war--a war that he was certain would be fought with Japan. But his brilliance was often overshadowed by his personal failings: typically, he alienated those in power who could act on his ideas. In a highly publicized trial, Mitchell was court-martialed and found guilty, ostensibly for openly attacking the Navy and the War Department over the fatal crash of the airship Shenandoah, but primarily for making public his warnings about U.S. weaknesses in the air. Although the air attack on Pearl Harbor made Mitchell look to some like a prophet martyred for his integrity, Cooke revises that portrait to reveal a character fatally flawed by consuming ambition and a man who was a victim only of circumstances of his own creation.
Celebrity culture today teems with stars who challenge long-held ideas about a “normal" body. Plus-size and older actresses are rebelling against the cultural obsession with slender bodies and youth. ...Physically disabled actors and actresses are moving beyond the stock roles and stereotypes that once constrained their opportunities. Stars of various races and ethnicities are crafting new narratives about cultural belonging, while transgender performers are challenging our culture’s assumptions about gender and identity. But do these new players in contemporary entertainment media truly signal a new acceptance of body diversity in popular culture? Focusing on six key examples—Melissa McCarthy, Gabourey Sidibe, Peter Dinklage, Danny Trejo, Betty White, and Laverne Cox—Rebellious Bodies examines the new body politics of stardom, situating each star against a prominent cultural anxiety about bodies and inclusion, evoking issues ranging from the obesity epidemic and the rise of postracial rhetoric to disability rights, Latino/a immigration, an aging population, and transgender activism. Using a wide variety of sources featuring these celebrities—films, TV shows, entertainment journalism, and more—to analyze each one’s media persona, Russell Meeuf demonstrates that while these stars are promoted as examples of a supposedly more inclusive industry, the reality is far more complex. Revealing how their bodies have become sites for negotiating the still-contested boundaries of cultural citizenship, he uncovers the stark limitations of inclusion in a deeply unequal world.
Missing Bodies Casper, Monica; Moore, Lisa Jean
07/2009, Volume:
2
eBook
We know more about the physical body - how it begins, how it responds to illness, even how it decomposes - than ever before. Yet not all bodies are created equal, some bodies clearly count more than ...others, and some bodies are not recognized at all. In Missing Bodies, Monica J. Casper and Lisa Jean Moore explore the surveillance, manipulations, erasures, and visibility of the body in the twenty-first century. The authors examine bodies, both actual and symbolic, in a variety of arenas: pornography, fashion, sports, medicine, photography, cinema, sex work, labor, migration, medical tourism, and war. This new politicsof visibility can lead to the overexposure of some bodies - Lance Armstrong, Jessica Lynch - and to the near invisibility of others - dead Iraqi civilians, illegal immigrants, the victims of HIV/AIDS and "natural" disasters.Missing Bodies presents a call for a new, engaged way of seeing and recovering bodies in a world that routinely, often strategically,obscures or erases them. It poses difficult, even startling questions: Why did it take so long for the United States media to begin telling stories about the "falling bodies" of 9/11? Why has the United States government refused to allow photographs or filming of flag-draped coffins carrying the bodies of soldiers who are dying in Iraq? Why are the bodies of girls and women so relentlessly sexualized? By examining the cultural politics at work in such disappearances and inclusions of the physical body the authors show how the social, medical and economic consequences of visibility can reward or undermine privilege in society.
All of human experience flows from bodies that feel, express emotion, and think about what such experiences mean. But is it possible for us, embodied as we are in a particular time and place, to know ...how people of long ago thought about the body and its experiences? In this groundbreaking book, three leading experts on the Classic Maya (ca. AD 250 to 850) marshal a vast array of evidence from Maya iconography and hieroglyphic writing, as well as archaeological findings, to argue that the Classic Maya developed a coherent approach to the human body that we can recover and understand today. The authors open with a cartography of the Maya body, its parts and their meanings, as depicted in imagery and texts. They go on to explore such issues as how the body was replicated in portraiture; how it experienced the world through ingestion, the senses, and the emotions; how the body experienced war and sacrifice and the pain and sexuality that were intimately bound up in these domains; how words, often heaven-sent, could be embodied; and how bodies could be blurred through spirit possession. From these investigations, the authors convincingly demonstrate that the Maya conceptualized the body in varying roles, as a metaphor of time, as a gendered, sexualized being, in distinct stages of life, as an instrument of honor and dishonor, as a vehicle for communication and consumption, as an exemplification of beauty and ugliness, and as a dancer and song-maker. Their findings open a new avenue for empathetically understanding the ancient Maya as living human beings who experienced the world as we do, through the body.
Since the 1990s, Junior Reserve Officer Training Corps (JROTC) programs have experienced unprecedented expansion in American public schools. The program and its proliferation in poor, urban schools ...districts with large numbers of Latina/o and African American students is not without controversy. Public support is often based on the belief that the program provides much-needed discipline for "at risk" youth. Meanwhile, critics of JROTC argue that the program is a recruiting tool for the U.S. military and is yet another example of an increasingly punitive climate that disproportionately affect youth of color in American public schools.
Citizen, Student, Soldierintervenes in these debates, providing critical ethnographic attention to understanding the motivations, aspirations, and experiences of students who participate in increasing numbers in JROTC programs. These students have complex reasons for their participation, reasons that challenge the reductive idea that they are either dangerous youths who need discipline or victims being exploited by a predatory program. Rather, their participation is informed by their marginal economic position in the local political economy, as well as their desire to be regarded as full citizens, both locally and nationally. Citizenship is one of the central concerns guiding the JROTC curriculum; this book explores ethnographically how students understand and enact different visions of citizenship and grounds these understandings in local and national political economic contexts. It also highlights the ideological, social and cultural conditions of Latina/o youth and their families who both participate in and are enmeshed in vigorous debates about citizenship, obligation, social opportunity, militarism and, ultimately, the American Dream.
The Marine Corps has always considered itself a branch apart. Since 1775 America’s smallest armed service has been suspicious of outsiders and deeply loyal to its traditions. Undying faith in its ...exceptionalism made the Marines one of the sharpest, swiftest tools of American military power, but developing this brand did not come without costs.
Le syndrome de lésion réversible du corps calleux (RESLES) est une entité peu connue, responsable de manifestations cliniques variées et aspécifiques.
Il s’agit d’un syndrome clinicoradiologique ...associant une encéphalopathie et une lésion du splénium du corps calleux bien caractérisée en IRM et qui est complètement réversible.
Les étiologies sont nombreuses.
La physiopathologie n’est pas bien définie, mais le pronostic est favorable.
