Appendix II. Measurement of the Migration Factor

Keyword(s):  
1984 ◽  
Vol 68 (1) ◽  
pp. 153-162
Author(s):  
N.J. Dodd ◽  
S. Kumar

Two distinct factors have been separated from an angiogenic extract of a rat Walker 256 carcinoma, one inducing proliferation and the other migration of capillary endothelial cells in vitro, but having no detectable effect on aortic endothelial cells. The influence of these factors on the order of plasma membranes of these cells was examined by electron spin resonance, using the lipophilic spin label 5-doxyl stearic acid. No detectable effect was observed on treating whole cells or isolated membranes with proliferation factor. In contrast, exposure of capillary endothelial cell membranes to migration factor caused a reduction of membrane order, particularly at temperatures above 30 degrees C. The migration factor had no detectable effect on membrane order of aortic endothelial cells.


Author(s):  
Vadzim S. Mikhailouski

Neo-Marxism world-system analysis was an effective means of the understanding of the postcolonial global order. The concepts of «core», «periphery» and «semi-periphery» reflected the dependent development of states in the global capitalist system. Capitalism structured the global order in the classical Marxist dichotomy of exploiters and exploited which can be represented with various subjects (states, groups of states, territories) and which according to neo-Marxism can’t disappear, because it reflects the essence of global antagonism. However, the realities of global development at the end of the 20th century demanded that neo-Marxism should reconsider the rigid link between the core-peripheral approach and the horizontal vision of the world: globalisation caused massive flows of migrants to highly developed countries and the gradual blurring of the boundaries between the core and periphery. There was the question in neo-Marxism which was about the ability of capitalism to preserve the core-peripheral organisation of the global division of labour. There was the idea that capitalism was able to reproduce core-periphery relations within the core states by including immigrants in the super-exploitation of labour through a covert policy of neo-racism. Such a vertical organisation of the core-peripheral model around the world, which was called dual society in neo-Marxism, would mean the formation of the global semi-periphery. The purpose of the article is to verify the neo-Marxist concept of the global semi-periphery using the example of the role of the migration factor in its formation. The study is based on UN data, as well as studies with a pronounced statistical component. According to the results of the study, it was concluded that the neo-Marxist concept of the global semi-periphery had not been verified by actual empirical material (on the example of the role of the migration factor). The available statistical and analytical data do not allow to totally confirm the neo-Marxist position that the global order under the influence of migration has been transformed and that it works in the conceptual model of a dual society. Globally, migration is not a determining factor in the widespread formation and unification of the dual method of labour exploitation within states. The quantitative data on the flow of migrants, comparative data on salaries in the countries of the core and the degree of concentration of income among certain groups of the population in the countries of the capitalist system state that the world is still largely reproduced in the horizontal core-peripheral model. Thus, there are no empirical grounds for stating the presence of a global dual society under the influence of the migration factor and consequently the presence of a global semi-periphery within the neo-Marxist approach of E. Balibar, I. Wallerstein, M. Hardt and A. Negri.


2020 ◽  
pp. 097300522096500
Author(s):  
William Yaw Amuesi Kodwiw ◽  
John Victor Mensah

The role of microenterprise in providing economic opportunities and employment options to the poor due to their ease of entry is recognised across the world. To enhance rural job creation through microenterprise development interventions, it is essential to understand how microenterprise establishment decisions are made among rural dwellers. The study examined how the option to migrate to other localities affects microenterprise establishment decisions among rural dwellers in the Mfantsiman Municipality of Ghana. A mixed method design was used in the study. This involved a cross-sectional survey of 20 rural communities, during which data was collected from 800 respondents. Data were also collected from one focus group in each of the 20 communities. A conjoint decision analysis was carried out from interactions of the attributes of each respondent with the migration factor and other socio-economic factors. The migration option reduced the probability of local microenterprise establishment, with the most significant effect among people aged between 15 and 30 years. Furthermore, rural microenterprise establishment decisions are least influenced by the interactive effect of personal attributes and the migration factor as compared to interaction with other factors including access to electricity, institutional support services, market for outputs and returns on investment.


In Vitro ◽  
1970 ◽  
Vol 6 (3) ◽  
pp. 190-196 ◽  
Author(s):  
Harold Amos ◽  
Richard F. Hoyt ◽  
Michel Horisberger

1994 ◽  
Vol 1 ◽  
pp. 242
Author(s):  
Nobuhiro Morisaki ◽  
Noriyuki Koyama ◽  
Yasushi Saito

2018 ◽  
Vol 7 (3) ◽  
pp. 1962
Author(s):  
Diandra Chika Fransisca ◽  
Padosroha Marbun

Population growth model is a widely been used model to do an estimation and forecasting towards the population of peoples, animals, bac-teria and even in economics growth. Many studies have been carried out on population growth model concerning the factors of birth, death and carrying capacity in order to predict the number of population at certain area. From these studies there is only one study involved the constant value factor of migration as an input in the logistic model. Therefore contradicting with the above modified logistic model, in this study logistic model is modified by adding a migration factor as a function of population. This function takes into account the migration and the interaction between peoples that is limited to the carrying capacity of the environment. This model can be solved qualitatively using the analysis of equilibrium point and quantitatively using the separable variables method. This modified logistic model with migration factor has been applied in the population prediction of Purwanegara village in Central Java Province, Indonesia. Throughout the results, the modified logistic model with migration factor as a function of population gives a better result for population prediction of Purwanegara village in Central Java Province, Indonesia compared with logistic model.  


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