Search results for "migration"
showing 10 items of 1709 documents
Dynamic Changes in the Neurogenic Potential in the Ventricular–Subventricular Zone of Common Marmoset during Postnatal Brain Development
2020
AbstractEven after birth, neuronal production continues in the ventricular–subventricular zone (V–SVZ) and hippocampus in many mammals. The immature new neurons (“neuroblasts”) migrate and then mature at their final destination. In humans, neuroblast production and migration toward the neocortex and the olfactory bulb (OB) occur actively only for a few months after birth and then sharply decline with age. However, the precise spatiotemporal profiles and fates of postnatally born neurons remain unclear due to methodological limitations. We previously found that common marmosets, small nonhuman primates, share many features of V–SVZ organization with humans. Here, using marmosets injected wit…
Full‐thickness tissue engineered oral mucosa for genitourinary reconstruction: A comparison of different collagen‐based biodegradable membranes
2020
Tissue engineering is a method of growing importance regarding clinical application in the genitourinary region. One of the key factors in successfully development of an artificially tissue engineered mucosa equivalent (TEOM) is the optimal choice of the scaffold. Collagen scaffolds are regarded as gold standard in dermal tissue reconstruction. Four distinct collagen scaffolds were evaluated for the ability to support the development of an organotypical tissue architecture. TEOMs were established by seeding cocultures of primary oral epithelial cells and fibroblasts on four distinct collagen membranes. Cell viability was assessed by MTT-assay. The 3D architecture and functionality of the ti…
Spontaneous Spatiotemporal Ordering of Shape Oscillations Enhances Cell Migration
2019
The migration of cells is relevant for processes such as morphogenesis, wound healing, and invasion of cancer cells. In order to move, single cells deform cyclically. However, it is not understood how these shape oscillations influence collective properties. Here we demonstrate, using numerical simulations, that the interplay of directed motion, shape oscillations, and excluded volume enables cells to locally "synchronize" their motion and thus enhance collective migration. Our model captures elongation and contraction of crawling ameboid cells controlled by an internal clock with a fixed period, mimicking the internal cycle of biological cells. We show that shape oscillations are crucial f…
Market Values and Socioeconomic Mixité in Palermo. The Role of Migrants in the Commercial Real Estate Market
2022
Socioeconomic and functional mixité has been an objective placed at the basis of urban development to guide the transformation processes of urban areas, associating it with social inclusion as opposed to the morphological and spatial segregation, often caused by monofunctional zoning. The implementation of social mixité involves all social groups and, particularly, migrant communities that, in turn, are formed by groups with different cultures, nationalities, resources and income levels. The location choices of migrants and native residents produce an ever-changing urban geography of residential, commercial and service activities that directly impact on the real estate market. Migrants’ act…
Labour market response to globalisation: spain, 1880-1913
2010
Abstract This paper analyses the impact of globalisation (trade and migration) on the Spanish labour market between 1880 and 1913 by examining the influence that globalisation factors had on agricultural and industrial wages. Our results show that the nineteenth century grain invasion had a negative impact on agricultural wages, whereas the fall in wheat prices did not benefit industry workers. We also found that migration pushed up real agricultural and industrial wages. As agriculture was the main sector in the economy, the final impact was a wage decrease. The negative impact of trade on agricultural and industrial labour markets partly explains the trade policy response of “integral pro…
The relationship between communication apprehension and linguistic fluency: an analysis of North African and Russian immigrants in France
2013
North African and Russian immigrants in France were recruited (334) to complete a survey investigating the relationships between communication apprehension (CA) and linguistic fluency. Correlation analysis revealed a negative relationship between linguistic fluency in the dominant language and CA, meaning individuals who are fluent in the dominant language tend to be less apprehensive. Moreover, independent samples t-tests revealed Russian immigrants score higher on CA than do North African immigrants. Theoretical implications regarding the importance of studying Islam, linguistic fluency, and cultural adaptation are presented.
Threats and attitudes toward Russian-speaking immigrants: a comparative study between younger and older Finns
2014
Using integrated threat theory as a theoretical lens to detect negative attitudes toward minority groups, this study compares and contrasts the perceptions and attitudes of older and younger Finns toward Russian-speaking minorities in Finland. A sample of high school students between 16 and 20 years of age represented the younger generation, while individuals over 65 years of age represented the older generation. The total sample was 242. Results indicated that there is a positive correlation between threat perception and prejudice. Results revealed that both groups have prejudices against Russian speakers and that these prejudices are related to the perception of realistic threat and negat…
Saperi e abilità in chiave interculturale. Risultati di una ricerca empirica con esperti del sistema di accoglienza dei migranti in Italia.
2020
In pedagogia, il “paradigma delle competenze” costituisce uno dei riferimenti essenziali. L’aspirazione verso un profilo completo della competenza è frutto di una ricerca costante di equilibrio fra teoria e pratica, fra etica e tecnica. Nei contesti educativi con persone migranti, agli operatori dell’accoglienza sono richieste, oltre alle conoscenze, abilità attea saper gestire l’interazione con chi presenta dei profili linguistici e culturali diversi. Il contributo intende riflettere sulle competenze proprie dei professionisti del sistema di accoglienza e di protezione in Italia. Nello specifico, l’obiettivo è quello di presentare i risultati di una ricerca esplorativa sulle competenze int…
Executable Data Quality Models
2017
The paper discusses an external solution for data quality management in information systems. In contradiction to traditional data quality assurance methods, the proposed approach provides the usage of a domain specific language (DSL) for description data quality models. Data quality models consists of graphical diagrams, which elements contain requirements for data object's values and procedures for data object's analysis. The DSL interpreter makes the data quality model executable therefore ensuring measurement and improving of data quality. The described approach can be applied: (1) to check the completeness, accuracy and consistency of accumulated data; (2) to support data migration in c…
Research and Science Today Supplement 2/2014
2015
In this supplement of Research and Science Today journal are included scientific articles which debate problems from social science fields, engineering sciences fields, legal sciences and medical sciences fields: European borders, social challanges, immigration flows, migration in Europa, syrian refugees in Romania, modernity, cultural identity, Ukraina and Crimeea, financial crisis, constructivist Europe, economic security, democratic regimes, unilateral separation, lobbying for migration policy, naturalism, migrant wave.Research and Science Today Journal is a publication founded in 2011 and it is dedicated to the students of all levels (license, master and doctoral) of faculties in the co…