We consider a system of outflows ejected from low mass young stars embedded in the tips of elephant trunks. We assume that these outflows have axes which are intrinsically perpendicular to the axes of the host elephant trunks. We then derive the distribution function expected for the angle between the projections of the outflow and elephant trunk axes on the plane of the sky. These distribution...

”Does old Scotty still make a living from finger wagging?” A question asked by an Irish man who had known Scott Kelso since both were children. The answer: ”Yes, and doing quite well, actually” triggered the much tougher question: ”What can be studied there for half a life span?” Such was not possible to respond in detail as we were at the airport in Miami and had to catch our flights. But the ...

I evaluate in this paper the impact of Free-Trade Areas (FTAs) on the world trade system using a model that emphasizes the role of oligopolistic industries in the shaping of trade policies, on account of both strategic and political reasons. In this context, I find that FTAs are likely a “building block” of the multilateral system. One reason for that regards the finding that FTAs induce their ...

This paper examines the implications for multinational firms of recent proposals to conform tax and financial reporting (i.e., book-tax conformity). Proponents of book-tax conformity argue that the current dual system in the U.S. allows firms to simultaneously manage their taxable income down while managing their book income upward. By requiring book-tax conformity, they contend that firms will...

I explore the country-speci city of safeguard tari protection for a country that is experiencing a surge of imports from a trading partner with a new technology. I nd that raising the tari against all trading partners welfare-dominates a targeted country-speci c tari increase. This arises because a broad tari increase is more e ective at helping the importing country close the technology gap it...

Senior Research Assistant, and Vice President and Economist, respectively, Federal Reserve Bank of Boston. The authors thank Lynn Browne, Richard Kopcke, and Scott Schuh for helpful comments, Joe Ritter for access to the gross worker flows data, and Dan Feenberg at the National Bureau of Economic Research for help in obtaining MORG data. Shifts in the Beveridge Curve, Job Matching, and Labor Ma...

“The debate on sustainable production often ends in discussions on the feasibility of farreaching changes in relation to the competitiveness of companies. Industry itself and policy-makers tend to back away from engaging in profound processes of industrial transformation” (Green, quotation frames the problem of moving towards sustainable production while dividing the issue into two separate yet...

This paper considers the implications of James Scott’s Seeing Like a State (1998) and The Art of Not Being Governed (2009) for state-building efforts in Afghanistan and the Democratic Republic of the Congo (DRC). In Seeing Like a State, Scott warns of the problems associated with top-down planning efforts to improve the human condition. In The Art of Not Being Governed, Scott discusses the ‘art...

Various plant organ segments including segments from roots (root tip, and root collar), stems, leaves, and also seeds of several Hyoscyamus species (i.e. H. pusillus, H. arachnoideus, annual and biennial H. niger from two distinct geographical regions) were cultured on MS media with various growth regulator combinations, to assess the ability of flower production. Statistical assessments showed...

The genus Hypericum is one of the most important medicinal plants that contain 17 species in Iran, three of them are endemics. This paper reports the essential oil composition of eight Hypericum species from Iran. The essential oil analysis of a number of the studied plants has already been reported but their report from Iran may be valuable for scientists.  Samples collected from different pla...