Convergence of a linearly transformed particle method for aggregation equations

We study a linearly transformed particle method for the aggregation equation with smooth or singular interaction forces. For the smooth interaction forces, we provide convergence estimates in $L^1$ and $L^\infty$ norms depending on the regularity of the initial data. Moreover, we give convergence estimates in bounded Lipschitz distance for measure valued solutions. For singular interaction forces, we establish the convergence of the error between the approximated and exact flows up to the existence time of the solutions in $L^1 \cap L^p$ norm

The Function of the Hukou System in Post-Revolutionary China & its Autonomous Regions

Over the course of more than two millennia the Hukou System has shifted in scope and purpose. In dynastic times it served as a mechanism of tax acquisition. In more recent years it has functioned as a method of census and land distribution. Today it holds a duplicitous function serving as both an economic and social control mechanism. The Hukou achieves this through controlling movement through a passport like system of internal registration. In simpler terms, think of the Hukou as an internal passport regulating movement while simultaneously holding all of your biometric data which is surveilled and controlled by a centralized government institution. This work explores the duality of this system and the effects that such a system have had on two sub-sects of people within the PRC. In the first case study I examine the economic side of the Hukou and the role it plays in the lives of Han economic migrants. In the second case I examine the social-control aspect and its implementation in the Uyghur Autonomous Region of Xinjiang. By engaging in this analysis, I show the possible outcomes of the continuance of such a system and how it could play a larger role in global migration governance in coming years

Present and Future of the Chinese Labour Market

The paper aims to provide a representation, as rich and complete as possible, of the Chinese labour market, both in terms of stock and flow, despite the fact that the statistical information is still rather poor and often inconsistent. It does then document the increasing differences in the level and trends of the main labour market variables at the provincial level. In order to reach a deeper comprehension of the dynamic of the Chinese labour market, the paper analyses two other extremely relevant phenomena: the so called “floating population” and the labour shortages that are more and more frequently affecting the coastal regions. After having provided a demographic background to the Lewis model of development with unlimited supply of labour, the paper shows in which periods China has been obliged to accumulate a large labour surplus, mainly in the agricultural sector, and in which periods and through which mechanisms, including ageing and internal migration, the process of deaccumulation has taken place. More specifically, the paper shows how up to now internal migrations have provided urban areas and coastal regions with an unlimited supply of labour, a factor that has played a major role in boosting the Chinese economic development and determining its typology. In order to reach this result, simple demographic tools have been utilized to estimate the net migration balance of each province and in each province of rural and urban areas, and therefore to define areas of departures and areas of arrival, information not provided by the literature on the floating population. Finally the paper provides a rough estimate of the disguised unemployment in agriculture and of its geographical distribution. After assessing which percentage can represent a possible supply of labour for the modern sector, it will be maintained that China not only is very close to the Lewis turning point (a situation that has already been reached in many coastal areas), but is going to become the world biggest importer of labour. In order to provide its population with living standards comparable to that of the western world, in a reasonable time interval, China needs to continue to grow at an extremely high rate. This will require the capacity to deal with a series of structural problems. Limiting our concerns to the labour market, that is characterized by increasing complexity and regional differentiation, high priority should be given to improve the collection, analysis and dissemination of labour market data; to abolish the one child policy that is totally obsolete in a situation that will be soon characterized by a structural lack of labour supply; to give to the Chinese citizens the right to freely move and change residence, while rapidly regularizing the existing floating population; to raise the legal age of retirement; to plan and implement a structure of t entries in vocational courses and higher educational paths coherent with the expected structure of the labour demand in terms of flows by occupation; to strengthen the Employment service system in order to improve skills matching at the local level, and facilitate the correct allocation of human resources over the national territory, in order to minimize the human and economic costs of future unavoidable internal migrations.China; labour market; stock and flow; demography; internal migration; Lewis turning point

Present and Future of the Chinese labour Marke

The paper aims to provide a representation, as rich and complete as possible, of the Chinese labour market, both in terms of stock and flow, despite the fact that the statistical information is still rather poor and often inconsistent. It does then document the increasing differences in the level and trends of the main labour market variables at the provincial level. In order to reach a deeper comprehension of the dynamic of the Chinese labour market, the paper analyses two other extremely relevant phenomena: the so called “floating population” and the labour shortages that are more and more frequently affecting the coastal regions. After having provided a demographic background to the Lewis model of development with unlimited supply of labour, the paper shows in which periods China has been obliged to accumulate a large labour surplus, mainly in the agricultural sector, and in which periods and through which mechanisms, including ageing and internal migration, the process of deaccumulation has taken place. More specifically, the paper shows how up to now internal migrations have provided urban areas and coastal regions with an unlimited supply of labour, a factor that has played a major role in boosting the Chinese economic development and determining its typology. In order to reach this result, simple demographic tools have been utilized to estimate the net migration balance of each province and in each province of rural and urban areas, and therefore to define areas of departures and areas of arrival, information not provided by the literature on the floating population. Finally the paper provides a rough estimate of the disguised unemployment in agriculture and of its geographical distribution. After assessing which percentage can represent a possible supply of labour for the modern sector, it will be maintained that China not only is very close to the Lewis turning point (a situation that has already been reached in many coastal areas), but is going to become the world biggest importer of labour. In order to provide its population with living standards comparable to that of the western world, in a reasonable time interval, China needs to continue to grow at an extremely high rate. This will require the capacity to deal with a series of structural problems. Limiting our concerns to the labour market, that is characterized by increasing complexity and regional differentiation, high priority should be given to improve the collection, analysis and dissemination of labour market data; to abolish the one child policy that is totally obsolete in a situation that will be soon characterized by a structural lack of labour supply; to give to the Chinese citizens the right to freely move and change residence, while rapidly regularizing the existing floating population; to raise the legal age of retirement; to plan and implement a structure of t entries in vocational courses and higher educational paths coherent with the expected structure of the labour demand in terms of flows by occupation; to strengthen the Employment service system in order to improve skills matching at the local level, and facilitate the correct allocation of human resources over the national territory, in order to minimize the human and economic costs of future unavoidable internal migrations.China; labour market; stock and flow; demography; internal migration; Lewis turning point

Turbofan forced mixer lobe flow modeling. Part 3: Application to augment engines

Military engines frequently need large quantities of thrust for short periods of time. The addition of an augmentor can provide such thrust increases but with a penalty of increased duct length and engine weight. The addition of a forced mixer to the augmentor improves performance and reduces the penalty, as well as providing a method for siting the required flame holders. In this report two augmentor concepts are investigated: a swirl-mixer augmentor and a mixer-flameholder augmentor. Several designs for each concept are included and an experimental assessment of one of the swirl-mixer augmentors is presented

The organisation and functions of local Ca²⁺ signals

Calcium (Ca2+) is a ubiquitous intracellular messenger, controlling a diverse range of cellular processes, such as gene transcription, muscle contraction and cell proliferation. The ability of a simple ion such as Ca2+ to play a pivotal role in cell biology results from the facility that cells have to shape Ca2+ signals in space, time and amplitude. To generate and interpret the variety of observed Ca2+ signals, different cell types employ components selected from a Ca2+ signalling 'toolkit', which comprises an array of homeostatic and sensory mechanisms. By mixing and matching components from the toolkit, cells can obtain Ca2+ signals that suit their physiology. Recent studies have demonstrated the importance of local Ca2+ signals in defining the specificity of the interaction of Ca2+ with its targets. Furthermore, local Ca2+ signals are the triggers and building blocks for larger global signals that propagate throughout cells

Impairments in motor coordination without major changes in cerebellar plasticity in the Tc1 mouse model of Down syndrome

Down syndrome (DS) is a genetic disorder arising from the presence of a third copy of human chromosome 21 (Hsa21). Recently, O’Doherty et al. [An aneuploid mouse strain carrying human chromosome 21 with Down syndrome phenotypes. Science 309 (2005) 2033–2037] generated a trans-species aneuploid mouse line (Tc1) that carries an almost complete Hsa21. The Tc1 mouse is the most complete animal model for DS currently available. Tc1 mice show many features that relate to human DS, including alterations in memory, synaptic plasticity, cerebellar neuronal number, heart development and mandible size. Because motor deficits are one of the most frequently occurring features of DS, we have undertaken a detailed analysis of motor behaviour in cerebellum-dependent learning tasks that require high motor coordination and balance. In addition, basic electrophysiological properties of cerebellar circuitry and synaptic plasticity have been investigated. Our results reveal that, compared with controls, Tc1 mice exhibit a higher spontaneous locomotor activity, a reduced ability to habituate to their environments, a different gait and major deficits on several measures of motor coordination and balance in the rota rod and static rod tests. Moreover, cerebellar long-term depression is essentially normal in Tc1 mice, with only a slight difference in time course. Our observations provide further evidence that support the validity of the Tc1 mouse as a model for DS, which will help us to provide insights into the causal factors responsible for motor deficits observed in persons with DS

SPAR X Technical Report for Experiment 76-22 Directional Solidification of Magnetic Composites

The effects of gravity on Bridgman-Stockbarger directional solidification of off-eutectic Bi/MnBi were studied in reduced gravity aboard the SPAR X flight and compared to normal-gravity investigations and previous eutectic Bi/MnBi SPAR flight experiments. The directional solidification of off-eutectic Bi/MnBi results in either a dendritic structure connected with local cooperative growth or a coupled low volume fraction faceted/non faceted aligned rod eutectic whose Mn macrosegregation, MnBi rod size, interrod spacing, and thermal and magnetic properties are sensitive functions of the solidification processing conditions. Two hypoeutectic and two hypereutectic samples were solidified during 605 sec of furnace travel, with an initial 265 sec low-gravity interval. Comparison Earth-gravity samples were solidified in the same furance assembly under identical processing conditions. Macrosegregation in the low-g samples was consistent with a metastable increase in Mn solubility in the Bi matrix, in partial agreement with previous Bi/MnBi SPAR findings of MnBi volume reduction

THE ROLE OF CHINA IN GLOBALIZATION: A NEW HEGEMON?

Çin 1970’li yıllar ile başlayan dışa açılma politika uygulamaları ile giderek güçlenen bir küresel aktör rolünü üslenmektedir. Bu süreçte üretim, ticaret, inovasyon, enerji kullanımı ve ulusötesi sermaye konularında yaşadığı çarpıcı gelişmeler ve ortalama en hızlı büyüyen ülke olmanın getirdiği avantajlar neticesinde Çin’in küreselleşmede mevcut hegemonyayı ele geçirmek gibi bir niyetinin ve gücünün olup olmadığı konusu, bu makalenin ana sorusunu oluşturmaktadır. Bu nedenle makalede Çin’in işçi maliyetleri ile ortaya çıkan avantajlarının ve ülkedeki büyümenin, Lewis Dönüm Noktası (LTP) ve Orta Gelir Tuzağı kavramsal çerçevesiyle sorgulanması, özellikle küresel kriz sonrası oluşan koşullar gözönünde bulundurularak yapılmaktadır. Çalışmada, Çin’de Orta Gelir Tuzağının aşılması yolunda toplam faktör verimliliğinin arttırılması ve diğer önlemlerin yanısıra küresel kriz ve ABD-Çin Ticaret Savaşlarının Çin ekonomisine etkileri sorgulanmıştır. Jel Kodları: B27, F23, F43, F63, G38, J61, N35China is taking on the role of a global actor that has been strengthened with the outward policy practices that started in the 1970s. The main question of this article is whether it has the intention and power to take over the current hegemony in globalization as a result of the striking developments in production, trade, innovation, energy use and transnational capital and the advantages of being the fastest growing country on average. Therefore, the question of China's labor costs and advantages and growth with the Lewis Turning Point (LTP) and the Middle Income Trap has been dealt with, in particular, taking into account the post-crisis conditions. The effects of the global crisis and the US-China trade wars on the Chinese economy were questioned, among other things, to increase the total factor productivity in overcoming the Middle Income Trap. Jel Codes: B27, F23, F43, F63, G38, J61, N3