Search results for " key"

Rivista Internazionale di Scienze Sociali, Special Issue on "Italian Economists and the Great Depression: the Journal Rivista Internazionale di Scien…

2012

Harvard meets the crisis: U.S. fiscal policy in the 1930s and the political economy of Lauchlin B. Currie, Jacob Viner, John H. Williams and Harry D.…

2010

The paper aims to describe the contribution of four Harvard economists to the interpretation of the Great Depression and the policy decision making from 1933 to 1938. Lauchlin B. Currie, Jacob Viner, John H. Williams, Harry D. White, eminent scholars in the field of monetary and international economics, were deeply involved in policy decisions during the New Deal. In our synoptic analysis we will benefit from extensive scholarly work that has been provided in the last few years. We shall examine the extensive biographical connection between Currie, Viner, White and Williams with special regard to their common training at Harvard. Then we shall compare their interpretations of the causes of …

John Maurice Clark's contribution to the genesis of the multiplier analysis: A note with some related unpublished correspondence

2008

The multiplier is a central concept in Keynesian and post-Keynesian economics. It is largely what justifies activist full-employment fiscal policy: an increase in fiscal expenditures contributing to multiple rounds of spending, thereby financing itself. Yet, while a copingstone of post-Keynesian theory,

Introduction - The "Rivista Internazionale di Scienze Sociali" in the Post-war Years (1945-1960)

2014

Unpacking Higher Educational Institutions (HEIs) performances through the institutional logics lens

2019

In the current knowledge-based economy, Higher Education Institutions (HEIs) are called to play different interconnected roles related to triple university missions. Alongside the two traditional missions of teaching and research, HEIs have experienced the emergence of the so-called “third mission”, which sees HEIs as knowledge-based agents part of ecosystems of public institutions, companies and citizens oriented to coknowledge creation. Finding a balance between the traditional missions and the third mission can be a serious challenge. For this reason, HEIs need to revise their objectives, strategies and performance indicator systems to plan, monitor and assess their social, cultural, and…

On the history of torsional stress concentrations in shafts: From electrical analogies to numerical methods

2014

This article proposes a retrospective on experimental and numerical methods developed throughout the past century to solve the torsion problem in shafts, with particular emphasis on the determination of shear stress concentration factors in discontinuities of typical use in shaft design. This article, in particular, presents the theory and related solutions distinguishing between two classes of geometries: shafts with constant cross section and axisymmetric shafts with variable diameter. Emphasis is given to approaches based on physical analog methods and, in particular, those based on electrical analogies proposed since about 1925. Experimental methods based on structural physical models …

First data on the taxonomic diversity of the Portulaca oleracea aggregate (Portulacaceae) in Iran

2017

The review of specimens from Iran belonging to the Portulaca oleracea L. aggregate resulted in the recognition of six microspecies: P. cypria Danin, P. granulatostellulata (Poelln.) Ricceri & Arrigoni, P. nitida (Danin & H.G.Baker) Ricceri & Arrigoni, P. rausii Danin, P. socotrana Domina & Raimondo, and P. trituberculata Danin, Domina & Raimondo, all reported for the first time for the flora of Iran. The identification was based on the microscopic study of seeds. It is noted that P. oleracea is not confirmed for Iran. Distribution data and an identification key for Portulaca microspecies in Iran are presented.

Costs of courtship and mating in a sexually cannibalistic orb-web spider: female mating strategies and their consequences for males

2002

The costs of courtship and mating may include increased risks of predation, the transmission of pathogens, and a loss of foraging opportunities. Thus, a female's decision to tolerate a courting male will depend upon how these costs offset the benefits of mating, which will depend on her reproductive and nutritional status. While these costs may be similar for mated and unmated females, the benefits of mating will be less for mated than virgin females. However, the cost of lost foraging opportunities may be higher for females with fewer nutritional reserves necessary for forming eggs. We examined how these costs and benefits influence the courtship and mating behaviour of male and female orb…

Shedding light on typical species: Implications for habitat monitoring

2021

Habitat monitoring in Europe is regulated by Article 17 of the Habitats Directive, which suggests the use of typical species to assess habitat conservation status. Yet, the Directive uses the term “typical” species but does not provide a definition, either for its use in reporting or for its use in impact assessments. To address the issue, an online workshop was organized by the Italian Society for Vegetation Science (SISV) to shed light on the diversity of perspectives regarding the different concepts of typical species, and to discuss the possible implications for habitat monitoring. To this aim, we inquired 73 people with a very different degree of expertise in the field of veget…

Review and a New Subfamily Placement of the Plant Bug GenusIsometocorisCarvalho and Sailer, 1954 (Hemiptera: Heteroptera: Miridae), with the Descript…

2015

Abstract The genus Isometocoris Carvalho and Sailer is reviewed and I. penicillus, new species, from Brazil is described. Diagnoses of the genus and included species I. blantoni Carvalho and Sailer and I. penicillus, n. sp., are given; a color adult habitus photo of both Isometocoris species, male genitalic drawings of Isometocoris penicillus n. sp., and scanning electron micrographs of selected structures of I. blantoni are provided; and an identification key is given to help distinguish the two included species. Isometocoris is transferred from the subfamily Psallopinae to the Cylapinae, where it is placed in the tribe Fulviini. Psallopinae is reduced to tribal level (Psallopini, new stat…