The rise and fall of the Roman Empire was a socio-political process with enormous ramifications for human history. The Middle Danube was a crucial frontier and a crossroads for population and ...cultural movement. Here, we present genome-wide data from 136 Balkan individuals dated to the 1st millennium CE. Despite extensive militarization and cultural influence, we find little ancestry contribution from peoples of Italic descent. However, we trace a large-scale influx of people of Anatolian ancestry during the Imperial period. Between ∼250 and 550 CE, we detect migrants with ancestry from Central/Northern Europe and the Steppe, confirming that “barbarian” migrations were propelled by ethnically diverse confederations. Following the end of Roman control, we detect the large-scale arrival of individuals who were genetically similar to modern Eastern European Slavic-speaking populations, who contributed 30%–60% of the ancestry of Balkan people, representing one of the largest permanent demographic changes anywhere in Europe during the Migration Period.
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•A frontier region of ancient Rome was as cosmopolitan as the imperial center•Genetic proof that migrants identified as Goths were ethnically diverse confederations•Slavic-speaking migrants account for 30%–60% of the ancestry of Balkan peoples today•A model for integrating archaeology with genetics
Genome-wide data from 146 ancient Balkan individuals dating to the 1st millennium CE, together with detailed archaeological information, reveals internal migratory patterns during the Roman Empire and documents the demographic impact of Early Medieval Slavic migrations that significantly contributed to the present-day Balkan gene pool.
"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. "
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.
The brown trout (Salmo trutta) is an iteroparous, anadromous salmonid that exhibits a complex continuum of feeding migration tactics, ranging from freshwater residency, to potamodromy, to estuarine ...migration, as well as short- to long-distance coastal migrations. While anadromous migrants are believed to play an important role in the species' population dynamics, little is known about the factors driving differences in the extent of individual marine habitat use. In this study, 32 brown trout veteran migrants were acoustically tagged prior to their seaward migration and sampled for indices of their nutritional state. Our findings suggest that (i) body condition factor differed among fish adopting different migratory tactics, with outer fjord migrant being in poorer condition; and (ii) within migratory groups, plasma triglyceride concentration was negatively correlated with the duration of marine residency. Results support the idea of condition-dependent migration in veteran migrants, with individual variation in nutritional state influencing the spatiotemporal aspects of marine habitat use. Furthermore, overall marine minimum survival during the summer feeding migration was 86%, the highest reported estimate for this life stage.
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.
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.
Although the treatment of ovarian cancer has made great progress, there are still many patients who are not timely detected and given targeted therapy due to unknown pathogenesis. Recent studies have ...found that hsa_circ_0015326 is upregulated in ovarian cancer and is involved in the proliferation, invasion, and migration of ovarian cancer cells. However, whether hsa_circ_0015326 can be used as a new target of ovarian cancer needs further investigation. Therefore, the effect of hsa_circ_0015326 on epithelial ovarian cancer was investigated in this study. At first, si‐hsa_circ_0015326 lentivirus was transfected into epithelial ovarian cancer cells. Then real‐time fluorescence quantitative PCR (qRT‐PCR) was used to detect hsa_circ_0015326 level. The proliferation of ovarian cancer cells was detected by CCK‐8 assay. The horizontal and vertical migration abilities of the cells were detected by wound‐healing assay and Transwell assay, respectively. Transwell assay was also used to determine the invasion rate. As for the apoptosis rate, it was assessed by flow cytometry. As a result, the expression level of hsa_circ_0015326 in A2780 and SKOV3 was found to be higher than that in IOSE‐80. However, after transfecting si‐hsa_circ_0015326 and si‐NC into the cells, the proliferation, migration, and invasion abilities of A2780 and SKOV3 cells in the si‐hsa_circ_0015326 group were significantly reduced in comparison to those in the si‐NC and mock groups, while their apoptosis rates were elevated. Collectively, silencing hsa_circ_0015326 bears the capability of inhibiting the proliferation, migration, and invasion of ovarian cancer cells while increasing apoptosis rate. It can be concluded that hsa_circ_0015326 promotes the malignant biological activities of epithelial ovarian cancer cells.
si‐hsa_circ_0015326 lentivirus was transfected into epithelial ovarian cancer cells. Then real‐time fluorescence quantitative PCR (qRT‐PCR) was used to detect hsa_circ_0015326 level. The proliferation of ovarian cancer cells was detected by CCK‐8 assay. The horizontal and vertical migration abilities of the cells were detected by wound‐healing assay and Transwell assay, respectively. Transwell assay was also used to determine the invasion rate. As for the apoptosis rate, it was assessed by flow cytometry. As a result, Hsa_circ_0015326 is highly expressed in ovarian cancer cells. And silencing hsa_circ_0015326 inhibits the proliferation, migration, and invasion abilities of the cells. Therefore, hsa_circ_0015326 is speculated to be an oncogene and plays a significant role in the genesis and development of ovarian cancer, which might become a new biomarker for the early diagnosis of patients with ovarian cancer.
The rise of cinema as the predominant American entertainment around the turn of the last century coincided with the migration of hundreds of thousands of African Americans from the South to the urban ..."land of hope" in the North. This richly illustrated book, discussing many early films and illuminating black urban life in this period, is the first detailed look at the numerous early relationships between African Americans and cinema. It investigates African American migrations onto the screen, into the audience, and behind the camera, showing that African American urban populations and cinema shaped each other in powerful ways. Focusing on Black film culture in Chicago during the silent era,Migrating to the Moviesbegins with the earliest cinematic representations of African Americans and concludes with the silent films of Oscar Micheaux and other early "race films" made for Black audiences, discussing some of the extraordinary ways in which African Americans staked their claim in cinema's development as an art and a cultural institution.
Fisher explores the process of migration chronologically and at levels varying from the migration of an individual community, to larger patterns of the collective movements of major ethnic groups, to ...the more abstract study of emigration, migration, and immigration. By highlighting an exemplary migration for each of the six chapters, the volume considers how technology, environment, and politics have shaped the diverse history of human migration.
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