migration flow
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2022 ◽  
Vol 14 (2) ◽  
pp. 844
Author(s):  
Cuixia Gao ◽  
Ying Zhong ◽  
Isaac Adjei Mensah ◽  
Simin Tao ◽  
Yuyang He

Considering the advancement of economic globalization, the reasons for migration together with the lifestyles of migrants will change the use of energy, environment of origin and destination. This study therefore explores the patterns of global trade-induced carbon emission transfers using “center-of-gravity” and complex network analysis. We further investigate the determinants of carbon transfers by integrating the impact of population migration through the STIRPAT framework for 64 countries over the period 2005–2015 using the stepwise regression approach. Our results unveil that higher levels of migration flow induce higher carbon flow. Specifically, every 1% increase in migration, triggers carbon transfers to increase within the range of 0.118%−0.124%. The rising impact of migration cannot be ignored, even though the coefficients were not so high. Besides, for both male and female migrants, their impact on carbon transfers generated by the intermediate products were higher than those generated by the final products. However, the influence is more obvious in male migrants. With the aim of dividing the sample of countries into three income groups, the results generally show that the impacts of migration vary across levels of income. Therefore, the environmental pressure caused by immigration should be considered by destination countries in the formulating of migration policies. On the other hand, origin countries should take some responsibility for carbon emissions according to their development characteristics.


2021 ◽  
Vol 7 (2) ◽  
pp. 41-58
Author(s):  
Mihai Hachi ◽  
◽  
Stela Morozan ◽  
Marina Popa ◽  
◽  
...  

Return migration is one of the types of contemporary migration, gaining momentum in many countries of the world as a result of frequent economic, political and social conjunctural changes that have influenced migration as a phenomenon. As part of the migration process, return migration has been less studied, given the low intensity of this form of migration and the difficulty of quantifying returned migrants. The return and reintegration of returned migrants, regardless of the reason or the mode of return, is a challenge both for returnees and for the authorities of the receiving countries and requires action plans, well thought-out strategies in order to manage this process effectively and to encourage new flows of returnees. Through this study, the authors wish to analyse the phenomenon of return migration through the prism of its determining factors, to follow the effectiveness of instruments that stimulate the return migration, to analyse the experience of European countries in managing this type of migration as best practices.The use of classical and contemporary human geography research methods will allow the quantitative and qualitative assessment of return migration, the study being based on a sociological survey conducted with returnees following a migration experience.


Author(s):  
LILIANA BROŽIČ

In 2021, the French publishing house L'Harmattan published a monograph entitled Darfur peacekeepers the African Union peacekeeping mission in Darfur (AMIS) from the perspective of a Hungarian military advisor. The author of the 234-page monograph is Janos Besenyo. In addition to the author's preface and the conclusion, the monograph includes six substantive chapters. In the first chapter entitled Geography and history of Darfur, the author presents the geography, climate, flora and fauna, major cities, economy, infrastructure, different nationalities, ethnic groups and religions, and the history of Darfur. In the second chapter, entitled AMIS, he focuses on the African Union's mission in Sudan I (AMIS I), in which he presents the causes of the Darfur conflict, its outbreak and the African Union’s engagement in the conflict with the African Union's mission in Sudan. This is followed by a chapter entitled AMIS II, which presents the history, structure and operation following the decision to engage additional civilian and military observers, soldiers, police officers and additional financial and other resources. The fourth chapter presents a new mission called AMIS II E or AMIS III, which is also the title of the chapter. The letter E in the acronym stands for the word “enhanced,” which implicated the enhanced character of military presence in this mission. This chapter is composed of a subchapter entitled The Foreshadow of the Fall and the additional engagement of the United Nations, followed by the UN and African Union mission in Darfur, known as UNAMID. In the fifth chapter, entitled The Support Mission of the European Union, and its four substantive subchapters, the author presents several phases of the European Union's participation in the mission led by the African Union. Chapter six, entitled Hungarian Experience, describes Hungarian experiences from the missions in Darfur. Hungary first deployed its military observer to Darfur in 2004. Hungary's involvement in the mission in Africa seems unusual, as it was the only one of all the participating countries that had no colonial history, economic or any other interests in this part of the world, and at the same time had no previous experiences. The monograph has only one drawback, and that is the fact that it is not scientific. However, this is at the same time its advantage. Besenyo was an officer in the Hungarian Armed Forces for 31 years and was deployed in Darfur in the second half of 2005. He was strongly marked by his personal experience as a peacekeeper. Ever since, he has been devoting much attention to Africa-related security topics. His return from the mission of the African Union, the European Union, NATO, the United Nations and other organisations in Darfur coincided with his doctoral studies. Both of these activities have achieved the same effect as two rivers, which merge at the confluence and gain a lot of power and speed as their flow continues. After completing his military career, the author of the monograph being a prolific writer and restless researcher became actively involved in the academic environment as a university professor at the Obuda University in Budapest. In 2019, the Africa Research Institute was established within Doctoral School of Safety and Security Sciences, University of Óbuda, headed by Assistant Professor Besenyo, PhD. Considering the amount and quality of publications on the African continent, the institute is clearly very successful. From a European point of view, Africa is a very distant continent; however, the developments in that region and their results are increasingly affecting all of us in the European Union and beyond. The migration flow, which brought many African migrants to the shores of the Mediterranean over the last decade and peaked in 2015, has significantly changed and affected all the countries along their way, especially those that migrants had chosen as their target countries. Since everyone should have the right to live at home in peace, in their own way, with their family, it would be right that they are enabled to do so. Unfortunately, climate change, water scarcity, disease, poverty, differences in culture, religion, political order and natural resources, but sometimes only individuals or smaller associations, lead to various frictions, conflicts or even genocide, as was the case in Darfur. In such cases, the international humanitarian community and various security and other organizations are usually involved to assist the helpless population. In his monograph, Besenyo presented the full breadth and magnitude of international humanitarian efforts, but also the harsh reality where all those who want to help are exactly where they need to be, but despite all their efforts, they are completely powerless. I recommend Darfur Peacekeepers to be read by all those who care about the future of all of us and our descendants, but especially by those who have the opportunity and ability to influence the security of the country, the society and the individual. The content of the book provides an invaluable insight into the experience of a military officer. It is a valuable learning resource for all of us, but especially for members of the armed forces, police and civilian institutions that lead or support the activities within international missions.


2021 ◽  
pp. 003802612110623
Author(s):  
Yao-Tai Li

The impact temporary visa status has on the lives of migrants and their experience of time has been widely discussed. Fewer studies, however, focus discussion on the competing interpretations of the value of Working Holiday Makers’ (WHMs) time and the complexities of disruption and (un)certainties: more specifically the contrast between the value the Australian government places on time spent doing agricultural work in rural areas to become eligible for a second visa, and how this time is perceived by WHMs. This article seeks to fill this gap by comparing data drawn from the government’s rhetoric and interviews with Taiwanese WHMs who had worked in regional areas of Australia for three months. I argue that the government selectively highlights to prospective WHMs the value of cultural exchange and tourism (life-value) while downplaying the labor value (money-value) to WHMs’ time. Furthermore, the government and WHMs are not always talking about the same ‘time units’ (working time and holiday time) when applying these values. This article demonstrates that WHMs are conscious of how their time is spent and perceive the three months of specified work as being ‘suspended’, ‘immobile’, and ‘disrupted’, which undermines their life-values and migration flow in Australia.


2021 ◽  
Vol 9 (10) ◽  
pp. 191-204
Author(s):  
Jadab Munda ◽  
Dr. Hemkhothang Lhungdim

This paper attempts to understand the pattern of the change of in-migration to West Bengal from different states of India. Inter-state migration flow to West Bengal is an old and essential phenomenon from the times of pre-independence periods. The total population of West Bengal in 2001 was about 80 million, and in 2011 the population increased to 91million persons. During the same period, it is observed that total in-migrants declined slightly from 2.45 million persons in 2001 to 2.38 million persons. The Study's objective is to examine the pattern of inter-state in-migration to West Bengal during 2001-2011 censuses and analyze the reasons and duration of stay of in-migration by the age-sex groups. The primary source of the Study is the census of India 2001 and 2011 (D2 & D5 Tables) based on place of last residence (POLR). The analysis includes computation of rate, ratio, and the result are shown by graphs and maps using ArchMap10.3.1 software. Significant findings include changing the pattern of inter-state in-migration by POLR between North 24 Parganas and Kolkata, indicating a flow decline pattern. The top ten major states in India send enormous numbers of migrants (94.33% in 2001 and 94.30% in 2011), the working-age groups have quite diminished as in-migrants in the past ten years. Bihar and Jharkhand sent the most prominent migrants to West Bengal. The Study feels that to attract the migrants again back, West Bengal would require a new regional developmental strategy to regain its old status as one important destination for in-migrants.


2021 ◽  
Vol 1 (3) ◽  
pp. 23-36
Author(s):  
Anna Topilina

The article examines the demographic and economic potential of organizing a new migration flow from LatinAmerica to Russia. In the context of the demographic crisis in which Russia is located, and the low fertility of Russian women, scientists see the only way to preserve and increase the population of the Russian Federation – migration. However, the quality and level of migration that exists in Russia today is problematic. Migrants from the former Soviet republics form ethnic enclaves, do not want to assimilate, and damage the Russian economy by withdrawing funds outside the Russian Federation. Under these conditions, the author proposes to organize an irrevocable migration from Latin American countries, which will solve the demographic problem by naturalizing Latinos who are mentally close to Russians, and stabilize the Russian economy due to the influx of workers, as well as a significant reduction in money transfers abroad due to the low exchange rate of the ruble against the dollar, and, in this regard, the unattractiveness of Russia as a donor of material resources. At the same time, the organization of this migration flow will “unload” the region. Russia will accept migrants who want to leave their countries that are in political and economic crisis, but whose entry into the territory of neighboring states and the United States is difficult. The organization of this migration flow will also help the Russian Federation to gain geopolitical partners in the problematic region. The author examines all the positive and negative aspects of the organization of this migration flow, presents applied technologies for organizing migration from Latin America. The author uses statistical materials, scientific research data and publications in the media that reflect the content of the studied problems. The material of this article is a project, the organization of which will require further study and significant methodological efforts. The proposed concept of organizing irrevocable migration from Latin American countries can be a way out of the complex crisis that has developed in Russia and in Latin American countries.


2021 ◽  
Vol 1 (3) ◽  
pp. 37-52
Author(s):  
Nikolay Mikryukov

The article considers the spatial distribution of migrants from the Asian countries from which the main influxof labor migration occurs in the regions of Russia. The purpose of the work is to identify the spatial patterns of the distribution of the migration flow. Hypothetically, it was assumed that the largest agglomerations in the country (Moscow, St. Petersburg), as well as resource regions (Khanty-Mansi Autonomous Okrug) were highly attractive for migrants. The information base for the study was the data of Rosstat, presented in the Unified Interdepartmental Information and Statistical System. The methods of description, comparative analysis, graphic, typological, zoning, statistical were used in the work. The spatial distribution and dynamics of migration from the countries of Central Asia are revealed: the Republic of Tajikistan, the Kyrgyz Republic, the Republic of Uzbekistan, the Republic of Turkmenistan. The Far-abroad countries characterized by the highest rates of immigration to Russia are identified: namely, the People’s Republic of China, the Republic of India, the Socialist Republic of Vietnam, the Republic of Afghanistan, the Syrian Arab Republic, the Republic of Turkey. For each of the countries, the specifics of the territorial distribution of migrants in Russia are indicated, the patterns of their spatial distribution are revealed. The dynamics of the migration process across the territory is reflected, new points of migration growth and regions with decaying growth are identified. The process of immigration to Russia has decreased, but has not stopped during the period of maximum restrictions in 2020, in incomplete 2021, there is a recovery growth of migration inflow. The main areas of the greatest attraction of migrants are identified: the vast Ural-Siberian region, the Moscow metropolitan agglomeration with adjacent regions, the regions of Southern Russia. The results of the work can be used by state authorities and business to predict social processes in the regions, indirectly assessthe economic situation in them, the situation on the regional labor markets. Prospective studies can be aimed at identifying patterns of intraregional, municipal distribution of the migration flow, and further tracking the dynamics and spatial distribution of migration, taking into account current statistical data.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fang Wu ◽  
Dachuan Sun ◽  
Yuqian Liao ◽  
Kai Shang ◽  
Canrong Lu

Abstract Background RPL35A has been reported to work as a biomarker in tumor angiogenesis. However, little work has been performed on the expression level and functional importance of RPL35A in gastric cancer (GC). Methods The protein expression level of RPL35A was detected by immunohistochemical staining and western blot analysis. The Celigo cell counting assay was used to assess cell proliferation. Both the wound healing assay and the transwell assay were conducted to evaluate cell migration. Flow cytometric analysis was utilized to detect cell apoptosis and cell cycle. A mouse xenograft model was constructed for in vivo experiments. Results The results demonstrated that RPL35A expression was abundantly up-regulated in GC and positively related to tumor infiltrate. In addition, RPL35A knockdown could significantly suppress cell proliferation, migration, enhance apoptosis and arrest cell cycle. The in vivo study also verified the inhibitory effects of RPL35A knockdown on GC tumorigenesis. Conclusions The above mentioned results indicated that the knockdown of RPL35A might be a considerable therapeutic strategy for the treatment of gastric cancer.


2021 ◽  
Vol 11 (16) ◽  
pp. 7708
Author(s):  
Gordon Gilja ◽  
Eva Ocvirk ◽  
Robert Fliszar

Fragmentation of rivers has a negative impact on river’s ecological status which can be improved by the construction of fishways next to obstacles in rivers that prevent a free migration. Flow field characteristics are key factors in the design process of hydraulically efficient fishways—flow and turbulence patterns in a functional fishway allow fish to enter, progress through and exit with minimum time/energy expenditure. The aim of this paper is an experimental study of the flow field characteristics measured in the physical fishway model with the goal of providing information on the Reynold’s shear stress distribution that would facilitate their design in accordance with the environmental requirements. The focus of the research was on the nominally hydraulically efficient con-figuration pool-type fishways—pool-orifice and vertical slot. Fishway geometry was varied for bottom slope (7.5%, 10% and 12.5%), pool length (45 cm, 60 cm and 90 cm) and orifice size (8 × 8 cm, 10 × 10 cm and 12 × 12 cm) in a model scaled 1:3 to the prototype. Since Reynold’s shear stress has been identified as the main turbulent parameter affecting fish swimming performance and behavior, it is used as the basis for the analyses. The velocity data were collected with Vectrino ADV and processed in all three planes—streamwise, horizontal and vertical. Reynold’s shear stress data were analyzed according to the injury (>50 N/m2) and disorientation (>30 N/m2) biocriteria boundaries defined in the literature. The percentage of the flow field exceeding the boundaries were analyzed depending on the fishway geometry. The results obtained in this research suggest that the critical design parameter is the orifice size for the pool-orifice fishways and the pool length for the VS fishway. The Reynold’s shear stress is generally the highest in the bottom layer for pool-orifice fishways and the surface layer for vertical slot fishways.


2021 ◽  
Author(s):  
Tanjona Ramiadantsoa ◽  
C. Jessica E. Metcalf ◽  
Antso Hasina Raherinandrasana ◽  
Santatra Randrianarisoa ◽  
Benjamin L. Rice ◽  
...  

For emerging epidemics such as the COVID-19 pandemic, quantifying travel is a key component of developing accurate predictive models of disease spread to inform public health planning. However, in many LMICs, traditional data sets on travel such as commuting surveys as well as non-traditional sources such as mobile phone data are lacking, or, where available, have only rarely been leveraged by the public health community. Evaluating the accuracy of available data to measure transmission-relevant travel may be further hampered by limited reporting of suspected and laboratory confirmed infections. Here, we leverage case data collected as part of a COVID-19 dashboard collated via daily reports from the Malagasy authorities on reported cases of SARS-CoV-2 across the 22 regions of Madagascar. We compare the order of the timing of when cases were reported with predictions from a SARS-CoV-2 metapopulation model of Madagascar informed using various measures of connectivity including a gravity model based on different measures of distance, Internal Migration Flow data, and mobile phone data. Overall, the models based on mobile phone connectivity and the gravity-based on Euclidean distance best predicted the observed spread. The ranks of the regions most remote from the capital were more difficult to predict but interestingly, regions where the mobile phone connectivity model was more accurate differed from those where the gravity model was most accurate. This suggests that there may be additional features of mobility or connectivity that were consistently underestimated using all approaches, but are epidemiologically relevant. This work highlights the importance of data availability and strengthening collaboration among different institutions with access to critical data - models are only as good as the data that they use, so building towards effective data-sharing pipelines is essential.


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