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Artigos de revistas sobre o tema "Migration"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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1

Gray, S. H., and M. A. Epton. "Multigrid migration: Reducing the migration aperture but not the migrated dips." GEOPHYSICS 55, no. 7 (1990): 856–62. http://dx.doi.org/10.1190/1.1442900.

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Given a frequency f, CDP interval Δx, and upper‐surface velocity v(0), the spatial Nyquist criterion defines a range of unaliased emergence angles for seismic reflection events. For migration, events outside that range should be discarded beforehand by dip filtering, or the migration operator should be trained to ignore them. In this paper, we express the spatial Nyquist criterion as a limitation on the CDP interval, rather than on emergence angle, which allows Δx to be adjusted as a function of emergence angle, increasing with decreasing emergence angle. We exploit this fact by creating two s

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2

Thomas, L. A., and K. M. Yamada. "Contact stimulation of cell migration." Journal of Cell Science 103, no. 4 (1992): 1211–14. http://dx.doi.org/10.1242/jcs.103.4.1211.

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Mass migrations of dense cell populations occur periodically during embryonic development. It is known that extracellular matrices, through which the cells migrate, facilitate locomotion. However, this does not explain how cells, such as neural crest, can migrate as a dense cohort of cells in essentially continuous contact with one another. We report here that unique behavioral characteristics of the migrating cells may contribute to cohesive migration. We used time-lapse video microscopy to analyze the migration of quail neural crest cells and of two crest derivatives, human melanoma cells an

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Larner, Ken, and Craig Beasley. "Cascaded migrations: Improving the accuracy of finite‐difference migration." GEOPHYSICS 52, no. 5 (1987): 618–43. http://dx.doi.org/10.1190/1.1442331.

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The accuracy of time migrations done with finite‐difference schemes deteriorates with increasing reflector dip. Some properties of migration in general, and of finite‐difference approaches in particular, suggest a way of improving the accuracy of finite‐difference schemes for migrating steep dips. First, although data will be undermigrated when too low a velocity is used in migration, a correctly migrated result can be obtained by migrating again, this time with the previously undermigrated result as input. In fact, a sequence of undermigrations will yield the correct result as long as the sum

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4

Trepat, Xavier, Zaozao Chen, and Ken Jacobson. "Cell Migration." Comprehensive Physiology 2, no. 4 (2012): 2369–92. https://doi.org/10.1002/j.2040-4603.2012.tb00467.x.

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AbstractCell migration is fundamental to establishing and maintaining the proper organization of multicellular organisms. Morphogenesis can be viewed as a consequence, in part, of cell locomotion, from large‐scale migrations of epithelial sheets during gastrulation, to the movement of individual cells during development of the nervous system. In an adult organism, cell migration is essential for proper immune response, wound repair, and tissue homeostasis, while aberrant cell migration is found in various pathologies. Indeed, as our knowledge of migration increases, we can look forward to, for

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Goldberg, Amy, Torsten Günther, Noah A. Rosenberg, and Mattias Jakobsson. "Ancient X chromosomes reveal contrasting sex bias in Neolithic and Bronze Age Eurasian migrations." Proceedings of the National Academy of Sciences 114, no. 10 (2017): 2657–62. http://dx.doi.org/10.1073/pnas.1616392114.

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Dramatic events in human prehistory, such as the spread of agriculture to Europe from Anatolia and the late Neolithic/Bronze Age migration from the Pontic-Caspian Steppe, can be investigated using patterns of genetic variation among the people who lived in those times. In particular, studies of differing female and male demographic histories on the basis of ancient genomes can provide information about complexities of social structures and cultural interactions in prehistoric populations. We use a mechanistic admixture model to compare the sex-specifically–inherited X chromosome with the autos

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Stolt, Robert H. "A prestack residual time migration operator." GEOPHYSICS 61, no. 2 (1996): 605–7. http://dx.doi.org/10.1190/1.1443987.

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Larner and Beasley (1987) present cascaded migration as a way to increase the power and effectiveness of relatively simple migration methods. In particular, f-k migration (Stolt, 1978) can be made to accommodate a depth‐dependent velocity as a cascade of constant‐velocity migrations. The core concept is that data which have been migrated with an approximate velocity can be effectively migrated to their true velocity by migrating with a velocity that is equal to the square root of the difference between the squares of the true and approximate velocities.

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7

Hinch, Scott G., and Peter S. Rand. "Swim speeds and energy use of upriver-migrating sockeye salmon (Oncorhynchus nerka): role of local environment and fish characteristics." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 8 (1998): 1821–31. http://dx.doi.org/10.1139/f98-067.

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We used electromyogram (EMG) radiotelemetry to assess swimming activity (e.g., swim speeds), behaviour, and migration speeds (e.g., ground speeds) of individual adult sockeye salmon (Oncorhynchus nerka) migrating through several reaches of the Fraser and Nechako rivers in British Columbia. Using a laboratory swim flume and volitionally swimming adult fish carrying EMG transmitters, we developed relationships between EMG pulse intervals and swim speeds. A bioenergetics model was used to estimate reach-specific energy use per metre for each individual based on the average swim speed, migration t

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Ffrench-Constant, C., and R. O. Hynes. "Patterns of fibronectin gene expression and splicing during cell migration in chicken embryos." Development 104, no. 3 (1988): 369–82. http://dx.doi.org/10.1242/dev.104.3.369.

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A variety of evidence suggests that fibronectin (FN) promotes cell migration during embryogenesis, and it has been suggested that the deposition of FN along migratory pathways may also play a role in cell guidance. In order to investigate such a role for FN, it is important to determine the relative contribution of migrating and pathway-forming cells to the FN in the migratory track, as any synthesis of FN by the migrating cells might be expected to mask guidance cues provided by the exogenous FN from pathway-forming cells. We have therefore used in situ hybridization to determine in developin

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9

Liu, Xialin, Junsheng Wu, Gang Sha, and Shuqin Liu. "Virtual Machine Consolidation with Minimization of Migration Thrashing for Cloud Data Centers." Mathematical Problems in Engineering 2020 (August 3, 2020): 1–13. http://dx.doi.org/10.1155/2020/7848232.

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Cloud data centers consume huge amount of electrical energy bringing about in high operating costs and carbon dioxide emissions. Virtual machine (VM) consolidation utilizes live migration of virtual machines (VMs) to transfer a VM among physical servers in order to improve the utilization of resources and energy efficiency in cloud data centers. Most of the current VM consolidation approaches tend to aggressive-migrate for some types of applications such as large capacity application such as speech recognition, image processing, and decision support systems. These approaches generate a high mi

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Pytel, Sławomir Piotr, and Iwona Kiniorska. "The Socioeconomic Status of Polish Pensioners Before and After Migration." Acta Universitatis Lodziensis. Folia Oeconomica 5, no. 344 (2019): 67–84. http://dx.doi.org/10.18778/0208-6018.344.05.

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The aim of this paper is to describe the socioeconomic status of migrating seniors before and after migration. This analysis will enable us to determine whether the overall effect of their migrations is a positive one or a negative one. In order to determine subjective reasons for migrations, questionnaire surveys are used. An analysis of the responses allows us to compare the migrants’ living conditions before and after migration with a view to confirming or rejecting Wolpert’s (1965) assumptions and to describe the role of migrations in meeting pensioners’ needs. Our study confirms the appro

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ம., கயல்விழி /. M. Kayalvizhi. "இலக்கியங்களில் புலம்பெயர்தல் / Migration in Literature". செங்காந்தள் / Chenkaantal Volume 2, Special Issue 2 (2023): 59–65. https://doi.org/10.5281/zenodo.7549955.

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<em>While globalization is shrinking the globe, the existing boundaries between countries have been a barricade. Tamils have settled in remote areas of the globe so that the world knows Tamils as global people, those who were seafarers and are also living on the edges of the sky; there are no countries where Tamils have not settled. They are migrating to other countries for education, jobs, marriage, friendship, migration and matters depending on their interests. In a situation where migrations are increasing day by day, the borders between countries are shrinking and every human being carries

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Romero, Louis A., Dennis C. Ghiglia, Curtis C. Ober, and Scott A. Morton. "Phase encoding of shot records in prestack migration." GEOPHYSICS 65, no. 2 (2000): 426–36. http://dx.doi.org/10.1190/1.1444737.

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Frequency‐domain shot‐record migration can produce higher quality images than Kirchhoff migration but typically at a greater cost. The computing cost of shot‐record migration is the product of the number of shots in the survey and the expense of each individual migration. Many attempts to reduce this cost have focused on the speed of the individual migrations, trying to achieve a better trade‐off between accuracy and speed. Another approach is to reduce the number of migrations. We investigate the simultaneous migration of shot records using frequency‐domain shot‐record migration algorithms. T

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Yu, Zhou, George A. McMechan, Phil D. Anno, and John F. Ferguson. "Wavelet‐transform‐based prestack multiscale Kirchhoff migration." GEOPHYSICS 69, no. 6 (2004): 1505–12. http://dx.doi.org/10.1190/1.1836823.

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We propose a Kirchhoff‐style algorithm that migrates coefficients obtained by wavelet decomposition of seismic traces over time. Wavelet‐based prestack multiscale Kirchhoff migration involves four steps: wavelet decomposition of the seismic data, thresholding of the resulting wavelet coefficients, multiscale Kirchhoff migration, and image reconstruction from the multiscale images. The migration procedure applied to each wavelet scale is the same as conventional Kirchhoff migration but operates on wavelet coefficients. Since only the wavelet coefficients are migrated, the cost of wavelet‐based

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de Diego, I., K. Kyriakopoulou, D. Karagogeos, and M. Wassef. "Multiple influences on the migration of precerebellar neurons in the caudal medulla." Development 129, no. 2 (2002): 297–306. http://dx.doi.org/10.1242/dev.129.2.297.

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Neurons destined to form several precerebellar nuclei are generated in the dorsal neuroepithelium (rhombic lip) of caudal hindbrain. They form two ventrally directed migratory streams, which behave differently. While neurons in the superficial migration migrate in a subpial position and cross the midline to settle into the contralateral hindbrain, neurons in the olivary migration travel deeper in the parenchyma and stop ipsilaterally against the floor plate. In the present study, we compared the behavior of the two neuronal populations in an organotypic culture system that preserves several as

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15

Corkeron, Peter, and Miranda Brown. "Pod Characteristics of Migrating Humpback Whales (Megaptera Novaeangliae) Off the East Australian Coast." Behaviour 132, no. 3-4 (1995): 163–79. http://dx.doi.org/10.1163/156853995x00676.

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AbstractThe size and sex composition of migrating humpback whale pods were investigated off the east Australian coast. Two hundred and thirty one singletons, 257 pairs, 63 trios, 7 quads and 4 pods containing more than 5 individuals were observed during two land-based surveys carried out throughout the northward migration in 1991 and 1993. Generally humpback whales migrated northward towards the breeding area in pods of I or 2 individuals. In 1992, a biopsy study was carried out throughout the northward and southward migrations. Pods migrating southward (mean = 2.59, SE = 0.19) towards the fee

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McGuire, Liam P., and Christopher G. Guglielmo. "What Can Birds Tell Us about the Migration Physiology of Bats?" Journal of Mammalogy 90, no. 6 (2009): 1290–97. https://doi.org/10.5281/zenodo.13442237.

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(Uploaded by Plazi for the Bat Literature Project) Many species of bats undergo annual migrations, in some cases covering distances of 1,000 km or more. However, very little is known about the physiological and biochemical mechanisms underlying bat migration. In contrast, the physiology of migrating birds has been studied for decades and many migration-related changes have been documented. Although bats and birds evolved flight and long-distance migration independently, they have likely experienced many similar selective pressures. We therefore suggest that knowledge of bird migration physiolo

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McGuire, Liam P., and Christopher G. Guglielmo. "What Can Birds Tell Us about the Migration Physiology of Bats?" Journal of Mammalogy 90, no. 6 (2009): 1290–97. https://doi.org/10.5281/zenodo.13442237.

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(Uploaded by Plazi for the Bat Literature Project) Many species of bats undergo annual migrations, in some cases covering distances of 1,000 km or more. However, very little is known about the physiological and biochemical mechanisms underlying bat migration. In contrast, the physiology of migrating birds has been studied for decades and many migration-related changes have been documented. Although bats and birds evolved flight and long-distance migration independently, they have likely experienced many similar selective pressures. We therefore suggest that knowledge of bird migration physiolo

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McGuire, Liam P., and Christopher G. Guglielmo. "What Can Birds Tell Us about the Migration Physiology of Bats?" Journal of Mammalogy 90, no. 6 (2009): 1290–97. https://doi.org/10.5281/zenodo.13442237.

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(Uploaded by Plazi for the Bat Literature Project) Many species of bats undergo annual migrations, in some cases covering distances of 1,000 km or more. However, very little is known about the physiological and biochemical mechanisms underlying bat migration. In contrast, the physiology of migrating birds has been studied for decades and many migration-related changes have been documented. Although bats and birds evolved flight and long-distance migration independently, they have likely experienced many similar selective pressures. We therefore suggest that knowledge of bird migration physiolo

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19

McGuire, Liam P., and Christopher G. Guglielmo. "What Can Birds Tell Us about the Migration Physiology of Bats?" Journal of Mammalogy 90, no. 6 (2009): 1290–97. https://doi.org/10.5281/zenodo.13442237.

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(Uploaded by Plazi for the Bat Literature Project) Many species of bats undergo annual migrations, in some cases covering distances of 1,000 km or more. However, very little is known about the physiological and biochemical mechanisms underlying bat migration. In contrast, the physiology of migrating birds has been studied for decades and many migration-related changes have been documented. Although bats and birds evolved flight and long-distance migration independently, they have likely experienced many similar selective pressures. We therefore suggest that knowledge of bird migration physiolo

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20

McGuire, Liam P., and Christopher G. Guglielmo. "What Can Birds Tell Us about the Migration Physiology of Bats?" Journal of Mammalogy 90, no. 6 (2009): 1290–97. https://doi.org/10.5281/zenodo.13442237.

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(Uploaded by Plazi for the Bat Literature Project) Many species of bats undergo annual migrations, in some cases covering distances of 1,000 km or more. However, very little is known about the physiological and biochemical mechanisms underlying bat migration. In contrast, the physiology of migrating birds has been studied for decades and many migration-related changes have been documented. Although bats and birds evolved flight and long-distance migration independently, they have likely experienced many similar selective pressures. We therefore suggest that knowledge of bird migration physiolo

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21

Castillo Ramírez, Guillermo. "Autonomía de las migraciones: de la producción política de fronteras a las luchas migrantes." Migraciones internacionales 14 (April 15, 2023): 0. http://dx.doi.org/10.33679/rmi.v1i1.2573.

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Within a global context, the increase in migrations in different regions of the world during this century has led to an increase in academic production on migration. The aim of this article is to analyze the autonomy of migration from the approaches of two of its greatest exponents, Mezzadra and De Genova, who investigate migration’s political condition, addressing the relationships of mutual influence between migrants, borders, and the State. The contribution of this paper is to show how this theoretical approach focuses on two fundamental processes to understand migration. On the one hand, i

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Sakthivel, Rasu. "Teamcenter Migration Approaches and Strategies for Successful Teamcenter Migration Projects for Transitioning from Legacy Systems." European Journal of Advances in Engineering and Technology 8, no. 5 (2021): 59–64. https://doi.org/10.5281/zenodo.13951005.

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As an organization evolves, migrating from legacy systems to modern platforms is a high-priority need. This paper approaches different strategies for migrating into Teamcenter, one of the state-of-the-art Product Lifecycle Management solutions. It discusses the challenges of legacy systems, the benefits of Teamcenter, and a structured migration process focusing on planning, execution, and validation. The case studies discussed herein help underline successful migrations and emphasize best practices for a smooth transition. This will provide insight and guidelines on the shift of organizations

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Thomer, Andrea K., Alexandria Jane Rayburn, and Allison R. B. Tyler. "Three approaches to documenting database migrations." International Journal of Digital Curation 15, no. 1 (2020): 5. http://dx.doi.org/10.2218/ijdc.v15i1.726.

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 Database migration is a crucial aspect of digital collections management, yet there are few best practices to guide practitioners in this work. There is also limited research on the patterns of use and processes motivating database migrations. In the “Migrating Research Data Collections” project, we are developing these best practices through a multi-case study of database and digital collections migration. We find that a first and fundamental problem faced by collection staff is a sheer lack of documentation about past database migrations. We contribute a discussion of ways information

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Barriteau, Violet Eudine. "Meditations on Migrations of Gender, Mobility, and Movement from the Commonwealth Caribbean." Frontiers: A Journal of Women Studies 45, no. 2 (2024): 45–78. http://dx.doi.org/10.1353/fro.2024.a935656.

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Abstract: This article constitutes a multilayered feminist analysis of the intertwining of gender, mobility, and migration in the post-emancipation, Commonwealth Caribbean. In interrogating the nexus of gender and migration the article exposes how migration narratives have become misgendered through a linear equation of gender in migration with the physical presence of migrating women in receiving countries or with migration policies overtly encouraging women's migration. This results in an incorrect knowledge claim that gender became a factor in Caribbean migration in the post–World War II pe

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Torrence, S. A. "Positional cues governing cell migration in leech neurogenesis." Development 111, no. 4 (1991): 993–1005. http://dx.doi.org/10.1242/dev.111.4.993.

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The stereotyped distribution of identified neurons and glial cells in the leech nervous system is the product of stereotyped cell migrations and rearrangements during embryogenesis. To examine the dependence of long-distance cell migrations on positional cues provided by other tissues, embryos of Theromyzon rude were examined for the effects of selective ablation of various embryonic cell lines on the migration and final distribution of neural and glial precursor cells descended from the bilaterally paired ectodermal cell lines designated q bandlets. The results suggest that neither the commit

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Thilagavathi, N., D. Divya Dharani, R. Sasilekha, Vasundhara Suruliandi, and V. Rhymend Uthariaraj. "Energy Efficient Load Balancing in Cloud Data Center Using Clustering Technique." International Journal of Intelligent Information Technologies 15, no. 1 (2019): 84–100. http://dx.doi.org/10.4018/ijiit.2019010104.

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Cloud computing has seen tremendous growth in recent days. As a result of this, there has been a great increase in the growth of data centers all over the world. These data centers consume a lot of energy, resulting in high operating costs. The imbalance in load distribution among the servers in the data center results in increased energy consumption. Server consolidation can be handled by migrating all virtual machines in those underutilized servers. Migration causes performance degradation of the job, based on the migration time and number of migrations. Considering these aspects, the propos

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McMillan, M. N., C. Huveneers, J. M. Semmens, and B. M. Gillanders. "Partial female migration and cool-water migration pathways in an overfished shark." ICES Journal of Marine Science 76, no. 4 (2018): 1083–93. http://dx.doi.org/10.1093/icesjms/fsy181.

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Abstract Knowledge about reproductive movements can be of important conservation value for over-exploited species that are vulnerable when moving between and within key reproductive habitats. Lack of knowledge persists around such movements in the overfished school shark Galeorhinus galeus in Australia. Management assumes all pregnant females migrate between adult aggregations in the Great Australian Bight, South Australia, and nursery areas around Bass Strait and Tasmania. We tracked 14 late-term pregnant females tagged in South Australia using satellite-linked pop-up archival tags to investi

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Mueller, Thomas, Robert B. O’Hara, Sarah J. Converse, Richard P. Urbanek, and William F. Fagan. "Social Learning of Migratory Performance." Science 341, no. 6149 (2013): 999–1002. http://dx.doi.org/10.1126/science.1237139.

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Successful bird migration can depend on individual learning, social learning, and innate navigation programs. Using 8 years of data on migrating whooping cranes, we were able to partition genetic and socially learned aspects of migration. Specifically, we analyzed data from a reintroduced population wherein all birds were captive bred and artificially trained by ultralight aircraft on their first lifetime migration. For subsequent migrations, in which birds fly individually or in groups but without ultralight escort, we found evidence of long-term social learning, but no effect of genetic rela

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Fuchs, Philip X., Mojca Doupona, Kinga Varga, et al. "Multi-national perceptions on challenges, opportunities, and support structures for Dual Career migrations in European student-athletes." PLOS ONE 16, no. 6 (2021): e0253333. http://dx.doi.org/10.1371/journal.pone.0253333.

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Despite Dual Careers (sports and education) and mobility of students being priorities in the funding policies of the European Commission, migrating student-athletes report severe challenges and decreased performance or dropouts at sport and academic levels. The objective of this study was to depict and assess the perceptions on challenges, support services, and their effectiveness in consideration of specific characteristics of participants and migrations. Based on a meta-synthesis and previous findings, a 50-items questionnaire was developed and completed by 245 student-athletes in 5 European

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Kim, Sarah Hyun Ji, and Daniel A. Hammer. "Integrin crosstalk allows CD4+ T lymphocytes to continue migrating in the upstream direction after flow." Integrative Biology 11, no. 10 (2019): 384–93. http://dx.doi.org/10.1093/intbio/zyz034.

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Abstract In order to perform critical immune functions at sites of inflammation, circulatory T lymphocytes must be able to arrest, adhere, migrate and transmigrate on the endothelial surface. This progression of steps is coordinated by cellular adhesion molecules (CAMs), chemokines, and selectins presented on the endothelium. Two important interactions are between Lymphocyte Function-associated Antigen-1 (LFA-1) and Intracellular Adhesion Molecule-1 (ICAM-1) and also between Very Late Antigen-4 (VLA-4) and Vascular Cell Adhesion Molecule-1 (VCAM-1). Recent studies have shown that T lymphocytes

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Cambois, Guillaume. "A proof for the convergence of 15‐degree cascaded migration." GEOPHYSICS 56, no. 12 (1991): 2110–13. http://dx.doi.org/10.1190/1.1443024.

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Larner and Beasley (1987) introduced cascaded migrations and showed, without proving it rigorously, that iterating a 15-degree migration with proper choice of migration velocity was equivalent to a 90-degree migration. In this paper, I will give a proof based on a power series expansion that makes it possible to compare this method with other migration methods. This analysis shows, for example, that cascaded 45-degree migrations yield higher accuracy than cascaded 15-degree migrations with fewer iterations.

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Baranov, Evgeny Yurievich. "Migration of population in Ural in the XX century: problems of modern historiography." Genesis: исторические исследования, no. 11 (November 2019): 11–28. http://dx.doi.org/10.25136/2409-868x.2019.11.31467.

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The goal of this research lies in identification of the key problems of modern historiography with regards to the history of population migration in Ural in the XX century. The author analyzes the results of study of migration history in the region, determines the range of questions within the problematic field of the research, as well as the leading vectors of research. An attempt is made to shape future prospects of research work on the topic of migrations in Ural. The relevance of the article is substantiated by the possibilities of fundamental understanding of the historical and modern tre

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Petelska, Michalina. "Migration Museums: A Proposed Typology." Muzeológia a kultúrne dedičstvo 10, no. 4 (2022): 27–45. http://dx.doi.org/10.46284/mkd.2022.10.4.2.

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The aim of this article is to propose the perception of migration museums as a coherent group. Migration museums are perceived by some professionals as specialised, thematic historical or ethnographic museums, whereas this paper organises the diversity of historical and contemporary migratory movements in connection with the current dynamic development of museums. Among the migration museums, the following types were grouped and distinguished: migration museums which comprehensively address the subject of various migrations, migration museums in the historical migration infrastructure, open-ai

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Lipowska, Dorota, and Adam Lipowski. "Evolution towards Linguistic Coherence in Naming Game with Migrating Agents." Entropy 23, no. 3 (2021): 299. http://dx.doi.org/10.3390/e23030299.

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As an integral part of our culture and way of life, language is intricately related to the migrations of people. To understand whether and how migration shapes language formation processes, we examine the dynamics of the naming game with migrating agents. (i) When all agents may migrate, the dynamics generates effective surface tension that drives the coarsening. Such behaviour is very robust and appears for a wide range of densities of agents and their migration rates. (ii) However, when only multilingual agents are allowed to migrate, monolingual islands are typically formed. In such a case,

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Rahman, Afzalur. "A Study on Irregular Migration from Bangladesh to Malaysia through the Bay of Bengal and the Andaman Sea." Otoritas : Jurnal Ilmu Pemerintahan 10, no. 2 (2020): 120–31. http://dx.doi.org/10.26618/ojip.v10i2.4640.

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Irregular migration is an issue of great concern for today’s world. There are various factors which are responsible for this conundrum. These are overpopulation, natural disaster, poverty, illiteracy, lack of employment opportunities, for a better life etc. Thus, irregular migration has been a livelihood strategy for the millions of people worldwide for the long time. Bangladesh is one of the top countries of the world in terms of sending labor migrants. Every year thousands of Bangladeshis are migrating overseas either legally or by illegal means for a better livelihood. However, in the last

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Schneeweiss, Hermann. "Exit Taxation after Cartesio: The European Fundamental Freedom’s Impact on Taxing Migrating Companies." Intertax 37, Issue 6/7 (2009): 363–74. http://dx.doi.org/10.54648/taxi2009038.

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At first sight, the European Court of Justice (ECJ)’s judgment in Cartesio looks like a victory for the European Union Member States collecting exit taxes from migrating companies. A closer look reveals that Cartesio is applicable only to a small portion of possible migration scenarios. As a result, exit taxation of the majority of company migration scenarios is likely to infringe the European fundamental freedoms. The author arrives at this conclusion by analyzing the ECJ’s case law on exit taxation of individuals, elaborating on its correlation with Daily Mail and Cartesio, and applying the

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Sirkeci, Ibrahim, Jeffrey H. Cohen, and Elli Heikkila. "Editorial: Migration and Migration Letters." MIGRATION LETTERS 5, no. 2 (2008): 107–10. http://dx.doi.org/10.33182/ml.v5i2.46.

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Migration is a dynamic and changing phenomenon so too is migration scholarship and research. While we understand that migration experience has always been responsive to political and economic environments we continue to search for new approaches and statements about migration’s triggers. Speedy progress in information and communication systems helped people in making informed decisions; improvements in transportation have both increased the number of potential destinations and origin areas contributing to migration. In policy and research papers, we have seen more and more mention of temporary

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Young, Jeffery L., Scott G. Hinch, Steven J. Cooke, et al. "Physiological and energetic correlates of en route mortality for abnormally early migrating adult sockeye salmon (Oncorhynchus nerka) in the Thompson River, British Columbia." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 5 (2006): 1067–77. http://dx.doi.org/10.1139/f06-014.

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Since 1995, large segments of the late-run sockeye salmon (Oncorhynchus nerka) stock complex from the Fraser River, British Columbia, Canada, have been initiating spawning migrations several weeks earlier than normal. Most aberrant migrants die before spawning. To evaluate the mechanisms underlying the mortality, we intercepted late-run sockeye salmon of the AdamsShuswap stock complex halfway along their freshwater migration (i.e., in the Thompson River Canyon situated 270 km from the Fraser estuary), nonlethally assessed physiological and energetic status, and tracked individuals using gastr

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Khadka, Rajendra. "City Centric Migration and Security Concern in Nepal." Journal of APF Command and Staff College 2, no. 1 (2019): 89–96. http://dx.doi.org/10.3126/japfcsc.v2i1.26748.

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This article tends to focus on the trend of internal migration and its security concern in Nepal. There are different social and security concerns of migration which are not taken seriously. The repercussion might be in different fields and effects can be seen after short or long epoch. Migration and its linkage with the security are varied. It is the subject of interest for people who want to develop and make their birth land, village or cities prosperous. Current tendency of migration in Nepal indicates that the extensive outmigration of people to foreign countries is either for job or to st

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Adavally, Shashank, Mahzabeen Islam, and Krishna Kavi. "Dynamically Adapting Page Migration Policies Based on Applications’ Memory Access Behaviors." ACM Journal on Emerging Technologies in Computing Systems 17, no. 2 (2021): 1–24. http://dx.doi.org/10.1145/3444750.

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There have been numerous studies on heterogeneous memory systems comprised of faster DRAM (e.g., 3D stacked HBM or HMC) and slower non-volatile memories (e.g., PCM, STT-RAM). However, most of these studies focused on static policies for managing data placement and migration among the different memory devices. These policies are based on the average behavior across a range of applications. Results show that these techniques do not always result in higher performance when compared to systems that do not migrate data across the devices: some applications show performance gains, but other applicat

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Çınar, Mehmet, and Özge Özbek. "The impact of economic and institutional factors on international migration flows: Evidence from Turkey." Panoeconomicus, no. 00 (2025): 10. https://doi.org/10.2298/pan240215010c.

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International migration affects the economy, culture, and social life of the destination country. Internal conflicts and wars within countries especially compel people to migrate. Turkey is exposed to a heavy influx of migration as one of the countries most affected by this situation. In this context, the study addresses six different migrant groups: those migrating from Turkey and those migrating to Turkey, those migrating from Turkey to Europe and Asia, and finally, those migrating from Europe and Asia to Turkey. The study investigates economic factors influencing migration together with ins

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Tian, Pengxin, Guannan Si, Zhaoliang An, Jianxin Li, and Fengyu Zhou. "Service Migration Strategy Based on Multi-Attribute MDP in Mobile Edge Computing." Electronics 11, no. 24 (2022): 4070. http://dx.doi.org/10.3390/electronics11244070.

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In order to solve the problem of service interruption caused by user movement and the limited service range of edge nodes, a service migration algorithm based on the multi-attribute Markov decision process was proposed for mobile edge computing. By performing service migration, the distance between the user and the service is always kept to a small range. In addition, in order to prevent the service quality from being affected by the frequent migration of users, the return function of the model was defined by comprehensively considering the service quality, the resource demand of the service,

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Shapiro-Phim, Toni. "Cambodia's Seasons of Migration." Dance Research Journal 40, no. 2 (2008): 56–73. http://dx.doi.org/10.1017/s0149767700000383.

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In classical Khmer dance dramas, the fluidity of gestural and choreographic movement is complemented by the seamlessness with which mythical figures move between the realms of sky, earth, and sea. Such mythical migrations have been the subject of Khmer dance dramas for centuries. In this essay I explore the recent development and performance of one specific danced story of migration and the performers' social realities that complicate their relationship to their art and to this story in particular. I discuss transnational migration's impact on current and future possibilities for Khmer classic

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Kostrzewa, Zofia, Lucyna Nowak, Dorota Szałtys, and Janusz Witkowski. "Kierunki doskonalenia statystyki migracji zagranicznych ludności." Wiadomości Statystyczne. The Polish Statistician 2010, no. 5 (2010): 1–25. http://dx.doi.org/10.59139/ws.2010.05.1.

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Main improvements of external migration statistics in EU are presented in the article. On the base of papers presented during the 95th DGINS Conference, experiences of some EU-countries as well as their activities to improve the statistical data quality concerning external migrations are discussed. The statistical system of external migrations in Poland is presented in this context. These very statistics should deliver both data on streams and migration resources. Polish migration statistics use three types of data sources as follows: the administrative system, statistical surveys, foreign dat

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Toshboyeva, F.Q. "POPULATION MIGRATION AND MIGRATION FLOW IN UZBEKISTAN." GEOGRAPHIC RESEARCH: INNOVATIVE IDEAS AND PROSPECTS FOR DEVELOPMENT 1, no. 1 (2023): 3. https://doi.org/10.5281/zenodo.7506866.

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 This article describes population migration and migration flows.  In addition to the general data, the main focus is on changes in population migration  in Uzbekistan, the analysis of the migration balance between interregional immigrants and migrants.    

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Daniels, Megan. "Archaeology and Migration." Avar: An Interdisciplinary Journal of Life and Society in the Ancient Near East 4, no. 1 (2025): 38–74. https://doi.org/10.33182/aijls.v4i1.2870.

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This paper takes the notion of a “migration-centred worldview” as a starting point to outline (a) how the concept of migration emerged in archaeological discourses over the 18th-20th century, (b) where we find ourselves in this discourse at the start of the 21st century, and (c) how we might course-correct to adopt realistic models of migration in historical and archaeological narratives. I argue that such realistic models of migration require adjusting ongoing assumptions about culture and ethnicity, which include ideas of cultures as “bounded units” on landscapes, and also, on a deeper level

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Ordeix, Marc, and Frederic Casals. "Why and when do freshwater fish migrate? Observations of migration patterns of the native fishes from the Iberian Peninsula (SW Europe)." Limnetica 43, no. 1 (2024): 1. http://dx.doi.org/10.23818/limn.43.02.

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We reviewed information on Iberian freshwater fish to characterize their migratory status and identify migration reasons and periods. Most species migrate (87.3 %; 62 species from 15 families). A large number are potamodromous species (45 species from 6 families) but diadromous species (17 species from 11 families) also exist, including anadromous (9 species) and cata¬dromous (8 species). The spawning period is a primary driver of fish migration but feeding and refuge-associated migrations also take place. Sexual maturity is the most important cue triggering fish migration, and other important

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Feng, Shiqian, Shuai Shi, Farman Ullah, et al. "Intercontinental Migration Facilitates Continuous Occurrence of the Desert Locust Schistocerca gregaria (Forsk., 1775) in Africa and Asia." Agronomy 14, no. 7 (2024): 1567. http://dx.doi.org/10.3390/agronomy14071567.

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The desert locust, Schistocerca gregaria (Forsk., 1775), stands as one of the most pervasive pests globally, inflicting extensive damage across Asia and Africa. Facilitated by intercontinental migration, the desert locust engages in population exchange between different source areas, perpetuating its widespread proliferation. Despite the wind being recognized as a key factor during migration events, elucidating its precise influence on intercontinental migration has remained elusive. In this study, we scrutinized monitoring data sourced from the FAO monitoring system, pinpointing 13 desert loc

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Ma, Z., K.-L. Liaw, and Y. Zeng. "Migrations in the Urban—Rural Hierarchy of China: Insights from the Microdata of the 1987 National Survey." Environment and Planning A: Economy and Space 29, no. 4 (1997): 707–30. http://dx.doi.org/10.1068/a290707.

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After presenting a brief account of the societal context of China, the authors use the microdata of the 1987 National Population Survey to study the migration behaviors of Chinese people in the mid-1980s. The authors' main concern is with the effects of the government migration policy, and the focus is on the migrations in the city/town/rural hierarchy. There are two main findings. First, although the migration policy resulted in a very low migration level and systematic distortions in migration schedules, its encouragement of downward migrations was very ineffective, whereas its control on ru

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Mulpuri, Gowtham. "Migrating Legacy Systems: Successes in Migrating Legacy Systems to Modern Technologies, Migration to Self - Hosted Artifactory." International Journal of Science and Research (IJSR) 13, no. 3 (2024): 942–45. http://dx.doi.org/10.21275/sr24314142922.

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