scholarly journals Survival and migration patterns of Chinese online media fandoms

2019 ◽  
Vol 30 ◽  
Author(s):  
Xiqing Zheng
Keyword(s):  
Online Media ◽  
Data Loss ◽  
Migration Patterns ◽  
The Past ◽  
And Migration

Chinese online media fandoms over the past two decades have been shaped and erased by natural website deaths and data loss, but also by governmental censorship, especially under the pressure of three major censorship campaigns that targeted pornographic and copyright-infringing publications. The preservation of this history, although necessary, also leads to ethical debates regarding exposing fandoms to censors.

scholarly journals Matchmaker, Matchmaker, Make Me a Match: Migration of Populations via Marriages in the Past

2013 ◽  
Author(s):  
Sang Hoon Lee ◽  
Robyn Ffrancon ◽  
Daniel M. Abrams ◽  
Beom Jun Kim ◽  
Mason A. Porter
Keyword(s):  
City Planning ◽  
Human Mobility ◽  
Modern Human ◽  
Generative Models ◽  
Geographical Information ◽  
Mobility Patterns ◽  
Migration Patterns ◽  
The Past ◽  
And Migration ◽  
Different Cultures

AbstractThe study of human mobility is both of fundamental importance and of great potential value. For example, it can be leveraged to facilitate efficient city planning and improve prevention strategies when faced with epidemics. The newfound wealth of rich sources of data—including banknote flows, mobile phone records, and transportation data—have led to an explosion of attempts to characterize modern human mobility. Unfortunately, the dearth of comparable historical data makes it much more difficult to study human mobility patterns from the past. In this paper, we present such an analysis: we demonstrate that the data record from Korean family books (called “jokbo”) can be used to estimate migration patterns via marriages from the past 750 years. We apply two generative models of long-term human mobility to quantify the relevance of geographical information to human marriage records in the data, and we find that the wide variety in the geographical distributions of the clans poses interesting challenges for the direct application of these models. Using the different geographical distributions of clans, we quantify the “ergodicity” of clans in terms of how widely and uniformly they have spread across Korea, and we compare these results to those obtained using surname data from the Czech Republic. To examine population flow in more detail, we also construct and examine a population-flow network between regions. Based on the correlation between ergodicity and migration patterns in Korea, we identify two different types of migration patterns: diffusive and convective. We expect the analysis of diffusive versus convective effects in population flows to be widely applicable to the study of mobility and migration patterns across different cultures.

New forms of intra-European migration, labour market dynamics and social inequality in Europe

2014 ◽  
Vol 11 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Roland Verwiebe ◽  
Laura Wiesböck ◽  
Roland Teitzer
Keyword(s):  
Labour Market ◽  
Social Inequality ◽  
Social Stratification ◽  
Labour Markets ◽  
Second Step ◽  
Market Dynamics ◽  
Migration Patterns ◽  
European Continent ◽  
The Past ◽  
European Migration

This article deals mainly with new forms of Intra-European migration, processes of integration and inequality, and the dynamics of emerging transnational labour markets in Europe. We discuss these issues against the background of fundamental changes which have been taking place on the European continent over the past two decades. Drawing on available comparative European data, we examine, in a first step, whether the changes in intra-European migration patterns have been accompanied by a differentiation of the causes of migration. In a second step, we discuss the extent to which new forms of transnational labour markets have been emerging within Europe and their effects on systems of social stratification.

Population trends and migration patterns in the critically endangered Yellow-breasted Bunting (Emberiza aureola) in the Republic of Korea

2020 ◽  
Vol 27 (1) ◽  
pp. 56-63
Author(s):  
Jong-Gil Park ◽  
Chang-uk Park ◽  
Kyoung-Soon Jin ◽  
Yang-Mo Kim ◽  
Hee-Young Kim ◽  
...  
Keyword(s):  
Population Trends ◽  
Critically Endangered ◽  
Republic Of Korea ◽  
Migration Patterns ◽  
The Republic ◽  
And Migration

Book Reviews

Transfers ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 131-149
Keyword(s):  
Sex Workers ◽  
Global City ◽  
Viet Nam ◽  
Community Culture ◽  
The Past ◽  
Transnational Mobility ◽  
Yellow Peril ◽  
David Walker ◽  
And Migration

Yogesh Sharma, ed., Coastal Histories: Society and Ecology in Pre-Modern India Debojyoti DasJason Lim, A Slow Ride into the Past: The Chinese Trishaw Industry in Singapore 1942–1983 Margaret MasonXiang Biao, Brenda S.A. Yeoh, and Mika Toyota, eds., Return: Nationalizing Transnational Mobility in Asia Gopalan BalachandranAjaya Kumar Sahoo and Johannes G. de Kruijf, eds., Indian Transnationalism Online: New Perspectives on Diaspora Anouck CarsignolKieu-Linh Caroline Valverde, Transnationalizing Viet Nam: Community, Culture, and Politics in the Diaspora Yuk Wah ChanChristine B.N. Chin, Cosmopolitan Sex Workers: Women and Migration in a Global City Lilly Yu and Kimberly Kay HoangDavid Walker and Agnieszka Sobocinska, eds., Australia's Asia: From Yellow Peril to Asian Century Daniel OakmanValeska Huber, Channelling Mobilities: Migration and Globalisation in the Suez Canal Region and Beyond, 1869–1914 Vincent LagendijkBieke Cattoor and Bruno De Meulder, Figures Infrastructures: An Atlas of Roads and Railways Maik HoemkeKlaus Benesch, ed., Culture and Mobility Rudi Volti

scholarly journals Spatial and space-time correlations in systems of subpopulations with genetic drift and migration.

Genetics ◽  
1993 ◽  
Vol 133 (3) ◽  
pp. 711-727
Author(s):  
B K Epperson
Keyword(s):  
Population Genetics ◽  
Time Correlation ◽  
Space Time ◽  
Spatial Correlations ◽  
Gene Frequencies ◽  
Migration Patterns ◽  
Migration Rates ◽  
Space And Time ◽  
Time Correlations ◽  
And Migration

Abstract The geographic distribution of genetic variation is an important theoretical and experimental component of population genetics. Previous characterizations of genetic structure of populations have used measures of spatial variance and spatial correlations. Yet a full understanding of the causes and consequences of spatial structure requires complete characterization of the underlying space-time system. This paper examines important interactions between processes and spatial structure in systems of subpopulations with migration and drift, by analyzing correlations of gene frequencies over space and time. We develop methods for studying important features of the complete set of space-time correlations of gene frequencies for the first time in population genetics. These methods also provide a new alternative for studying the purely spatial correlations and the variance, for models with general spatial dimensionalities and migration patterns. These results are obtained by employing theorems, previously unused in population genetics, for space-time autoregressive (STAR) stochastic spatial time series. We include results on systems with subpopulation interactions that have time delay lags (temporal orders) greater than one. We use the space-time correlation structure to develop novel estimators for migration rates that are based on space-time data (samples collected over space and time) rather than on purely spatial data, for real systems. We examine the space-time and spatial correlations for some specific stepping stone migration models. One focus is on the effects of anisotropic migration rates. Partial space-time correlation coefficients can be used for identifying migration patterns. Using STAR models, the spatial, space-time, and partial space-time correlations together provide a framework with an unprecedented level of detail for characterizing, predicting and contrasting space-time theoretical distributions of gene frequencies, and for identifying features such as the pattern of migration and estimating migration rates in experimental studies of genetic variation over space and time.

Lake Sturgeon Geographic Range, Distribution, and Migration Patterns in the Saskatchewan River

2014 ◽  
Vol 143 (6) ◽  
pp. 1555-1561 ◽  
Author(s):  
Van Wishingrad ◽  
Meghan K. Carr ◽  
Michael S. Pollock ◽  
Maud C. O. Ferrari ◽  
Douglas P. Chivers
Keyword(s):  
Geographic Range ◽  
Lake Sturgeon ◽  
Migration Patterns ◽  
Range Distribution ◽  
And Migration

Variations in the distribution and migration of centriole duplexes in mitotic PtK2 cells studied by immunofluorescence microscopy

1980 ◽  
Vol 43 (1) ◽  
pp. 177-194 ◽  
Author(s):  
J.E. Aubin ◽  
M. Osborn ◽  
K. Weber
Keyword(s):  
Nuclear Membrane ◽  
Immunofluorescence Microscopy ◽  
Cytoplasmic Microtubule ◽  
Migration Patterns ◽  
Large Variability ◽  
Membrane Breakdown ◽  
Large Populations ◽  
Tubulin Antibodies ◽  
Cytoplasmic Microtubules ◽  
And Migration

The localization and migration of centriole duplexes have been studied in PtK2 cells by indirect immunofluorescence microscopy using specific tubulin antibodies. The study demonstrated the usefulness of the immunofluorescence technique to quantitate studies of centriole migration and concomitant events such as cytoplasmic microtubule breakdown in large populations of cells. Centriole duplex locations in normal and Colcemid-treated interphase populations have been compared with duplex locations in prophase cells. A higher percentage of duplexes were found close to the nucleus in prophase than in interphase cells, but approximately 5% of the duplexes remained in the cytoplasm far removed from the nucleus in prophase and throughout the course of duplex separation. Duplex separation occurred along a wide variety of paths and duplexes did not have to be closely juxtaposed to the nuclear envelope for separation to occur. Some duplexes separated in the cytoplasm with no detectable nuclear attachment, with spindles forming far to the side of the condensing chromosomes. The timing of duplex separation did not always coincide either with chromosome condensation or with nuclear membrane breakdown, and in a small percentage of the cells separation occurred as late as prometaphase. These data suggest that normal spindle formation can occur despite the large variability in initial and final centriole duplex location, their migration patterns, and the timing of the different events. Breakdown of cytoplasmic microtubules began in prophase and progressed until prometaphase; the last cytoplasmic microtubules disappeared soon after the loss of the nuclear membrane.

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