A practical condition for migration dynamic recrystallization

A readily evaluated condition for migration dynamic recrystallization is developed. It is based on the postulate that “the distance traversed by the boundary of a hypothetical growing grain in the time taken for the attainment of a recovery steady state must exceed the size of a critical nucleus”. A method for estimating the boundary mobility based on the kinetics of static recrystallization is also developed to facilitate evaluation of the condition. The derivation focuses first on developing an upper limit for the dynamically recrystallized grain size. This upper limit is only slightly higher than experimental values. The critical condition also agrees well with a limited set of experimental data. These data include the occurrence (and, in two cases, suppression) of dynamic recrystallization in Cu, Ni, Mg, α-Fe, γ-Fe and Al.

Intersectoral size differences and migration: Kuznets revisited

The empirical evidence on the Kuznets hypothesis ranges from positive or negative support to insignificant relationships. Most studies typically try this hypothesis in domains different than the one conceived by Kuznets, which pertains to the industrialization-led urbanization (i.e., significant rural-urban migration) phase of societies. In this paper, we offer a specific channel on Kuznets' hypothesis in his suggested domain. First, we establish theoretically that intersectoral urban-rural size differences result in an intersectoral income inequality, increasing the national inequality. This, in turn, prompts an intersectoral migration, which works as an equilibriating mechanism in the economy, decreasing the inequality in due course. We then successfully test the predictions of the model. The theoretical predictions yield a recursive triangular system, in which we test, i) how the sectoral size differences influence the agricultural income, ii) how a change in agricultural income acts on migration, and iii) what happens to the income distribution as a result of migration. We find a very strong support for the theoretical predictions and the Kuznets hypothesis in its own domain.

Ulster-New Zealand migration and cultural transfers / Brad Patterson

Books
Medievalism and the Gothic in Australian Culture. Edited by Stephanie Trigg.

What If? Australian History as It Might Have Been. Edited by Stuart Macintyre and Sean Scalmer.

Disputed Histories: Imagining New Zealand's Pasts. Edited by Tony Ballantyne and Brian Moloughney.

The Myth of the Great Depression. By David Potts.

Memory, Monuments and Museums: The Past in the Present. Edited by Marilyn Lake.

Connected Worlds: History in Transnational Perspective. Edited by Marilyn Lake and Ann Curthoys.

Island Ministers: Indigenous Leadership in Nineteenth Century Pacific Islands Christianity. By Raeburn Lange.

Texts and Contexts: Reflections in Pacific Islands Historiography. Edited by Doug Munro and Brij V. Lai.

Day of Reckoning. By Lachlan Strahan.

Appropriated Pasts: Indigenous Peoples and the Colonial Culture of Archaeology. By Ian J. McNiven and Lynette Russell.

Recognising Aboriginal Title: The Mabo Case and Indigenous Resistance to English-Settler Colonialism. By Peter H. Russell.

Black Glass: Western Australian Courts of Native Affairs 1936-54. By Kate Auty.

Edward Eyre, Race and Colonial Governance. By Julie Evans.

Gender and Empire. By Angela Woollacott.

Uncommon Ground: White Women in Aboriginal History. Edited by Anna Cole, Victoria Haskins and Fiona Paisley.

Mixed Relations: Asian-Aboriginal Contact in North Australia. By Regina Ganter, with contributions from Julia Martinez and Gary Lee.

Botany Bay: Where Histories Meet. By Maria Nugent.

A Man of All Tribes: The Life of Alick Jackomos. By Richard Broome and Corinne Manning.

Black Founders: The Unknown Story of Australia's First Black Settlers. By Cassandra Pybus.

Over the Mountains of the Sea: Life on the Migrant Ships 1870-1885. By David Hastings.

Ulster-New Zealand Migration and Cultural Transfers. Edited by Brad Patterson.

From Paesani to Global Italians: Veneto Migrants in Australia. By Loretta Baldassar and Ros Pesman.

Ways of Seeing China: From Yellow Peril to Shangrila. By Timothy Kendall.

East by South: China in the Australasian Imagination. Edited by Charles Ferrall, Paul Millar and Keren Smith.

Arthur Tange: Last of the Mandarins. By Peter Edwards.

Kin: A Collective Biography of a Working-Class New Zealand Family. By Melanie Nolan.

Ida Leeson A Life: Not a Blue-Stocking Lady. By Sylvia Martin.

Will Dyson: Australia's Radical Genius. By Ross McMullin.

Francis De Groot: Irish Fascist Australian Legend. By Andrew Moore.

South by Northwest: The Magnetic Crusade and the Contest for Antarctica. By Granville Allen Mawer.

From Woolloomooloo to 'Eternity': A History of Australian Baptists. 2 vols. Volume 1: Crowing and Australian Church (1831-1914), Volume 2: A National Church in a Global Community (1914-2005). By Ken R. Manley.

Service migration in autonomic service oriented grids

The introduction of Web services into grids helped to address their two main obstacles to be embraced by business and industry, heterogeneity and useability. However, many problems are still open, e.g., grid reconfiguration, reliability and computing optimization. We argue here that a mechanism that could help solving these problems is Web Service migration, a part of automatic and transparent brokerage. Web service migration presents a number of new requirements not addressed in traditional process migration, being the outcome of Web services specific configuration of hosts and application servers, and availability of Web services / resources state. In this paper we report on our study into the development of a Web service migration facility focused on providing migration of services in a Service Oriented Grid environment. We present a novel approach to Web service migration, embodied in a System Management Broker, which is transparent, interoperable and flexible. We take the requirements of Web services into consideration when discovering suitable destination hosts and match services to suitable grid resources which are able to fulfil the needs of the service. We discuss a number of experiments conducted with different types of grid and Web service applications to highlight the feasibility and effectiveness of our migration facility and demonstrate how our facility significantly improves Service Oriented Grids.

What determines migration flows from low-income to high-income countries? An empirical investigation of Fiji-U.S. migration 1972-2001

This article examines the long-run and short-run determinants of migration from Fiji to the United States between 1972 and 2001 using a human capital framework, which is extended to take account of political instability in Fiji. In the long-run the authors find that differences in income levels, disparities in police strength, disparities in the number of doctors, costs of moving, and political instability in Fiji are all statistically significant with the expected sign. In the short run the cost of moving, lagged migration, political instability, and differences in both police strength and medical care are the main determinants of Fiji-United States immigration.

Epidermal growth factor-induced ovarian carcinoma cell migration is associated with JAK2/STAT3 signals and changes in the abundance and localization of α6β1 integrin

Peritoneal dissemination of ovarian carcinoma is mediated by epithelial–mesenchymal interconversions leading to the disruption of cell–cell contact and modulation of cell–extracellular matrix (ECM) interactions. The present study was designed to evaluate the effects of epidermal growth factor (EGF) as a modulator of Janus kinase 2 (JAK2) and signal transducer and activator of transcription 3 (STAT3) signalling and changes in integrin expression during the process similar to EMT. A fibroblastic morphology with reduced intercellular cell contacts and increased cell motility was observed in ovarian cancer cell lines in response to EGF and was concomitant with the up regulation of EMT-associated N-cadherin and vimentin expression. These changes were accompanied by an increase in α2, α6 and β1 integrin subunits and activation of JAK2 and STAT3 signalling which was suppressed by a specific JAK2 inhibitor. Consistent with the suppression of STAT3 activity, N-cadherin and vimentin expression were abrogated and was coherent with the loss of cell motility and the expression of α6 and β1 integrin subunits. Neutralizing antibodies against α6 and β1 subunits inhibited cancer cell migration. A strong correlation between the expression of N-cadherin, vimentin and JAK2/STAT3 levels were detected in high-grade ovarian tumors and was consistent with the previously reported enhanced expression of α6 integrin subunit in advanced tumors [Ahmed N, Riley C, Oliva K, Rice G, Quinn M. Ascites induces modulation of α6β1 integrin and urokinase plasminogen activator receptor expression and associated functions in ovarian carcinoma. British Journal of Cancer 2005;92:1475–85]. Our data incorporating the clinical samples and the cancer cell lines is the first to demonstrate that JAK2/STAT3 pathway may be one of the downstream events in EMT-like process and α6β1 integrin-mediated signalling in ovarian carcinomas.