Migrações e Exílios no Mundo Contemporâneo Cristina Clímaco; Enrique Coraza de los Santos; Heloisa Paulo ...
Imprensa da Universidade de Coimbra eBooks,
2020
eBook, Book
Odprti dostop
Fruto de perseguições políticas ou religiosas, os exílios marcam o nosso actual quotidiano com imagens que parecem repetir o martírio sofrido pelos exilados do século passado. A visão de campos de ...refugiados e de crianças amontoadas em balsas em pleno Mediterrâneo lembra-nos cenas antigas, como as da “Retirada” dos republicanos espanhóis através dos Pireneus, em Fevereiro de 1939, ou as fugas em massa durante a Segunda Guerra. A Europa conflituosa e ditatorial gerou a saída de um grande contingente populacional para o território latino-americano. A partir da segunda metade do século passado, as ditaduras latinoamericanas cuidaram para que a rota em busca da liberdade fosse em sentido inverso. Em Portugal, a partir do 28 de Maio de 1926, o exílio foi a única saída possível para muitos dos opositores do regime. Na Europa, nichos de liberdade, como a França antes de Vichy e a Espanha antes de Franco, também acolhem republicanos dispostos a dar sequência
Native Diasporas Smithers, Gregory D; Newman, Brooke N
06/2014
eBook
The arrival of European settlers in the Americas disrupted indigenous lifeways, and the effects of colonialism shattered Native communities. Forced migration and human trafficking created a diaspora ...of cultures, languages, and people. Gregory D. Smithers and Brooke N. Newman have gathered the work of leading scholars, including Bill Anthes, Duane Champagne, Daniel Cobb, Donald Fixico, and Joy Porter, among others, in examining an expansive range of Native peoples and the extent of their influences through reaggregation. These diverse and wide-ranging essays uncover indigenous understandings of self-identification, community, and culture through the speeches, cultural products, intimate relations, and political and legal practices of Native peoples.
Native Diasporasexplores how indigenous peoples forged a sense of identity and community amid the changes wrought by European colonialism in the Caribbean, the Pacific Islands, and the mainland Americas from the seventeenth through the twentieth century. Broad in scope and groundbreaking in the topics it explores, this volume presents fresh insights from scholars devoted to understanding Native American identity in meaningful and methodologically innovative ways.
"Today, increases of so-called ‘low-skilled’ and temporary labour migrations of Pacific Islanders to Australia occur alongside calls for Indigenous people to ‘orbit’ from remote communities in search ...of employment opportunities. These trends reflect the persistent neoliberalism within contemporary Australia, as well as the effects of structural dynamics within the global agriculture and resource extractive industries. They also unfold within the context of long and troubled histories of Australian colonialism, and of complexes of race, labour and mobility that reverberate through that history and into the present. The contemporary labour of Pacific Islanders in the horticultural industry has sinister historical echoes in the ‘blackbirding’ of South Sea Islanders to work on sugar plantations in New South Wales and Queensland in the late nineteenth and early twentieth centuries, as well as in wider patterns of labour, trade and colonisation across the Pacific region. The antecedents of contemporary Indigenous labour mobility, meanwhile, include forms of unwaged and highly exploitative labouring on government settlements, missions, pastoral stations and in the pearling industry. For both Pacific Islanders and Indigenous people, though, labour mobilities past and present also include agentive and purposeful migrations, reflective of rich cultures and histories of mobility, as well as of forces that compel both movement and immobility. Drawing together historians, anthropologists, sociologists and geographers, this book critically explores experiences of labour mobility by Indigenous peoples and Pacific Islanders, including Māori, within Australia. Locating these new expressions of labour mobility within historical patterns of movement, contributors interrogate the contours and continuities of Australian coloniality in its diverse and interconnected expressions. "
Treating broad themes as well as specific topics, this guide to the Great Black Migration will introduce high school students to a touchstone critical to shaping the history of African Americans in ...the United States.The movement of Southern blacks to the urban North and West over the course of the 20th century had a profound impact on black life, affecting everything from politics and labor to literature and the popular arts. This encyclopedia provides readers and researchers with a comprehensive reference work on this central topic of African American history, exploring the breadth of the black migration experience from its origins in the agricultural economy of the post-Civil War South to the return migration of the late 20th century.Entries cover such topics as the destinations that attracted black migrants, the impact of the Great Migration on black religion, the relationship between migration and black politics, and the patterns of discrimination and racial violence migrants encountered. Unlike more general reference works on African American history, each entry in the encyclopedia situates its subject within the context of black migration and articulates connections between the subject of the entry and the overall history of the migration.
The governmentality of immigration has become a crucial issue of contemporary societies. Ironically, although globalization meant facilitated circulation of goods, it has also signified increased ...constraints on the mobility of men and women. This evolution has been characterized by the policing of physical borders and the production of racialized boundaries, primarily studied by the social sciences in North America and Western Europe. Anthropological studies highlight the renewed role of the nation-state to impose a surveillance apparatus of the frontiers and the territories, regimes of exception for the detention and deportation of illegal aliens, and a dramatic decline in the right to asylum, sometimes replaced by forms of discretionary humanitarianism. These logics are embodied in the everyday work of bureaucracies as well as in the experience of immigrants.
Adult Atlantic salmon (Salmo salar) return to natal rivers several months before spawning and during summer can be subjected to temperatures that exceed their upper temperature tolerance limits. ...Salmon use thermal refuges to minimize exposure to high temperatures, but little information exists regarding behavioral thermoregulation by adult Atlantic salmon. We examined behavioral thermoregulation by Atlantic salmon during summer in-river residence in a Quebec river with a novel combination of thermal infrared remote sensing, river temperature monitoring, and acoustic telemetry. Adults engaged in behavioural thermoregulation at cooler ambient river temperatures (17-19 degreesC) than previously recorded for this species and maintained body temperature within a narrow range (16-20 degreesC) via use of cool and warm refuges. Adults used large, stable, stratified pools as refuges, allowing multiple individuals to thermoregulate simultaneously without leaving the pool. Low river discharge and high temperatures can be physical barriers to salmon migration, preventing them from accessing suitable refuges (e.g., pools). Identifying and maintaining connectivity to thermal refuges may be critical for persistence of Atlantic salmon populations as climate changes and rivers warm.
White flight Kruse, Kevin M
2013., 20130711, 2013, 2005, 2007, 2007-08-14, Letnik:
50
eBook
During the civil rights era, Atlanta thought of itself as "The City Too Busy to Hate," a rare place in the South where the races lived and thrived together. Over the course of the 1960s and 1970s, ...however, so many whites fled the city for the suburbs that Atlanta earned a new nickname: "The City Too Busy Moving to Hate."
In this reappraisal of racial politics in modern America, Kevin Kruse explains the causes and consequences of "white flight" in Atlanta and elsewhere. Seeking to understand segregationists on their own terms,White Flightmoves past simple stereotypes to explore the meaning of white resistance. In the end, Kruse finds that segregationist resistance, which failed to stop the civil rights movement, nevertheless managed to preserve the world of segregation and even perfect it in subtler and stronger forms.
Challenging the conventional wisdom that white flight meant nothing more than a literal movement of whites to the suburbs, this book argues that it represented a more important transformation in the political ideology of those involved. In a provocative revision of postwar American history, Kruse demonstrates that traditional elements of modern conservatism, such as hostility to the federal government and faith in free enterprise, underwent important transformations during the postwar struggle over segregation. Likewise, white resistance gave birth to several new conservative causes, like the tax revolt, tuition vouchers, and privatization of public services. Tracing the journey of southern conservatives from white supremacy to white suburbia, Kruse locates the origins of modern American politics.
Some images inside the book are unavailable due to digital copyright restrictions.
Considering cell migration is essential for understanding physiological processes and diseases. The vertical migration of cells in three dimensions is vital, but most previous studies on cell ...migration have only focused on two-dimensional horizontal migration. In this paper, cell migration in the vertical direction was studied. Barriers with a height of 1, 5, 10, and 25 µm with grating and arrows in channels as guiding patterns were fabricated. The effects of barrier height and guiding patterns on the vertical migration of MC3T3 cells were explored. The study revealed that taller barriers hinder vertical migration of MC3T3 cells, whereas grating and arrows in channels promote it. The time-lapse and micrograph images showed that as the barrier height increased, the cell climbing angle along the barrier sidewall decreased, and the time taken to climb over the barrier increased. These results indicate that taller barriers increase the difficulty of vertical migration by MC3T3 cells. To promote the vertical migration of MC3T3 cells, 10 µm tall barriers with 18° and 40° sloped sidewalls were fabricated. For barriers with 18° sloped sidewalls, the probability for MC3T3 cells to climb up and down the 10 µm tall barriers was 40.6% and 20.3%, respectively; this is much higher than the migration probability over vertical barriers. This study shows topographic guidance on the vertical migration of MC3T3 cells and broadens the understanding of cell migration in the vertical direction.
Most freshwater fish need to move freely through rivers to complete their life cycles. Thus, river barriers (e.g. dams, culverts and gauging stations) may delay, hinder or even block their ...longitudinal movements, affecting fish conservation. The most widespread solution to allow upstream fish migration are fishways, whereas downstream migration is basically facilitated through spillways, turbines or specific solutions such as bypass systems.
So far, studies and scientific discussions concerning bidirectional movements through fishways are scarce and focused on large dams and reservoirs, mainly with large migratory species such as salmonids, rather than smaller facilities and lesser known species.
This study investigated bidirectional movements through a small run‐of‐the‐river hydropower plant with a pool‐and‐orifice type fishway, using the Iberian barbel (Luciobarbus bocagei), a potamodromous cyprinid, as the target species. Passive integrated transponder and radio tracking data were collected over 4 years and combined to characterize upstream and downstream movements. The study focused primarily on fish movements through the fishway, but also estimated the multiple associated routes of passage.
The results show diverse fish movements with inter‐ and intra‐annual variability, with several individuals performing bidirectional movements and even some fish returning over the years.
The documented movements and observations indicate that fishways can serve as an effective bidirectional migration corridor for fish, potentially enhancing the conservation efforts for potamodromous species. This study supports the decision to use fishways as an overall mitigation tool to reduce the impact of small hydropower facilities on fish.
Bringing the often-neglected topic of migration to the forefront of ancient Mesoamerican studies, this volume uses an illuminating multidisciplinary approach to address the role of population ...movements in Mexico and Central America from AD 500 to 1500, the tumultuous centuries before European contact. Clarifying what has to date been chiefly speculation, researchers from the fields of archaeology, biological anthropology, linguistics, ethnohistory, and art history delve deeply into the causes and impacts of prehistoric migration in the region. They draw on evidence including records of the Nahuatl language, murals painted at the Cacaxtla polity, ceramics in the style known as Coyotlatelco, skeletal samples from multiple sites, and conquest-era accounts of the origins of the Chichén Itzá Maya from both Native and Spanish scribes. The diverse datasets in this volume help reveal the choices and priorities of migrants during times of political, economic, and social changes that unmoored populations from ancestral lands.Migrations in Late Mesoamerica shows how migration patterns are vitally important to study due to their connection to environmental and political disruption in both ancient societies and today's world. A volume in the series Maya Studies, edited by Diane Z. Chase and Arlen F. Chase
PDF
