New York Times v. U.S.: Implications and Relevance in the 21st Century

In 1971, the New York Times released the first installment in a series later referred to as the Pentagon Papers that would eventually have significant political, social, and historical impacts that are felt even in the 21st Century. Following the first release, President Nixon’s administration sought an injunction against the publication of the remaining contents of the classified study, ultimately becoming an extensive legal process that culminated in the Supreme Court. In a per curiam opinion, the Court ruled that in accordance with Organization for a Better Austin v. Keefe and Near v. Minnesota that the federal government did not meet the burden of proof required for prior restraint. The individual Justices’ opinions were divergent on several fronts and provide unique insight into the complexity of the issue. This decision was the driving force behind the formation of the White House Plumbers, the group that orchestrated one of the most infamous political scandals and the eventual implosion of Nixon’s career. It also effectively changed the tide of the Vietnam War, contributed to the credibility gap, and forever modified the relationship between the press and the federal government. The Pentagon Papers case has also served as one of the most famous freedom of the press cases and established a de facto precedent. The aftermath of its outcome is still felt today with the increasing prevalence of government whistle-blowers, such as WikiLeaks, PFC. Manning, and Edward Snowden

Double lenses

The analysis of the shear induced by a single cluster on the images of a large number of background galaxies is all centered around the curl-free character of a well-known vector field that can be derived from the data. Such basic property breaks down when the source galaxies happen to be observed through two clusters at different redshifts, partially aligned along the line of sight. In this paper we address the study of double lenses and obtain five main results. (i) First we generalize the procedure to extract the available information, contained in the observed shear field, from the case of a single lens to that of a double lens. (ii) Then we evaluate the possibility of detecting the signature of double lensing given the known properties of the distribution of clusters of galaxies. (iii) As a different astrophysical application, we demonstrate how the method can be used to detect the presence of a dark cluster that might happen to be partially aligned with a bright cluster studied in terms of statistical lensing. (iv) In addition, we show that the redshift distribution of the source galaxies, which in principle might also contribute to break the curl-free character of the shear field, actually produces systematic effects typically two orders of magnitude smaller than the double lensing effects we are focusing on. (v) Remarkably, a discussion of relevant contributions to the noise of the shear measurement has brought up an intrinsic limitation of weak lensing analyses, since one specific contribution, associated with the presence of a non-vanishing two-galaxy correlation function, turns out not to decrease with the density of source galaxies (and thus with the depth of the observations).Comment: 40 pages, 15 figures. Accepted for publication in ApJ main journa

Mixing in massive stellar mergers

The early evolution of dense star clusters is possibly dominated by close interactions between stars, and physical collisions between stars may occur quite frequently. Simulating a stellar collision event can be an intensive numerical task, as detailed calculations of this process require hydrodynamic simulations in three dimensions. We present a computationally inexpensive method in which we approximate the merger process, including shock heating, hydrodynamic mixing and mass loss, with a simple algorithm based on conservation laws and a basic qualitative understanding of the hydrodynamics of stellar mergers. The algorithm relies on Archimedes' principle to dictate the distribution of the fluid in the stable equilibrium situation. We calibrate and apply the method to mergers of massive stars, as these are expected to occur in young and dense star clusters. We find that without the effects of microscopic mixing, the temperature and chemical composition profiles in a collision product can become double-valued functions of enclosed mass. Such an unphysical situation is mended by simulating microscopic mixing as a post-collision effect. In this way we find that head-on collisions between stars of the same spectral type result in substantial mixing, while mergers between stars of different spectral type, such as type B and O stars ($\sim$10 and $\sim$40\msun respectively), are subject to relatively little hydrodynamic mixing.Comment: Accepted by MNRA

Improvement of the Rotation Arch of the Posterior Interosseous Pedicle Flap Preserving Both Reverse Posterior and Anterior Interosseous Vascular Sources.

Abstract PURPOSE: The reverse posterior interosseous artery flap has several advantages, not sacrificing any major blood vessel, but its relatively short pedicle limits the use to cover defects up to the metacarpophalangeal joint. Our purpose is to demonstrate that the ligature of the anterior interosseous artery (AIA), proximal to the communicating branch with the posterior interosseous artery, leads to an improved flap rotation arch, preserving both vascular sources. METHODS: Sixteen fresh cadavers with latex perfusion were analyzed before and after our technique of elongation, and the so-obtained measures were standardized in "percentage of elongation of the pedicle." Eight patient with the loss of substance at the dorsal aspect of the hand have been treated with this technique, and results were evaluated in terms of flap survival and complication rates. RESULTS: The medium length of the pedicle in the normal flap was 10.8\u2009cm, and after the section of the AIA, the medium length of the pedicle was 13.6\u2009cm with a medium increase of 2.8\u2009cm. It means a medium increase of 24% of the length of the pedicle. In all patients treated, full coverage of the defect was obtained, and we did not experience major complications. CONCLUSIONS: This anatomical study supported by our clinical experience demonstrates that the use of the variant described above permits to reach more distal part of the hand without being afraid to stretch the pedicle because of the connection with the anastomotic arcades of the AIA at the wrist reducing the risk of ischemia of the flap

A study of preferences from nineteen selections in current children's literature.

Thesis (Ed.M.)--Boston Universit

Superconducting spoke LINAC design as an alternative option for the CERN LINAC4 high energy part

A standard normal-conducting Side Coupled Linac (SCL) has been chosen as a mainline solution for the CERN LINAC4/SPL to accelerate the beam from 90-160/180 MeV. This type of structure is well known and operates at twice the basic frequency (704.4 MHz). Two alternative superconducting solutions with elliptical and triple-spoke cavities have been studied for this energy range. The present note summarizes the beam dynamics calculations in the superconducting triple-spoke linac section analyzing advantages/disadvantages

PARTNERSHIP--PARTNER\u27S RIGHT TO COMPENSATION FOR SERVICES TO PARTNERSHIP AS A GOING CONCERN

Plaintiff and defendant bought a fishing boat, which they operated in partnership for a number of years, under an agreement embodied in a series of informal letters. Both plaintiff and defendant at times ran the boat, but apparently they never operated it together. The partner in charge received the customary share of the crew\u27s two-thirds of the catch, plus compensation for services rendered as captain; each of them received half of the \u27\u27boat\u27s share of the catch. Defendant bought materials for some special nets, which he designed and constructed; he informed. plaintiff that he was doing so, and that it would cost quite a lot and be lots of work. Subsequently, without informing plaintiff, defendant took half of the boat\u27s share of the catch as rent for the nets, on the theory that the purchase of materials and construction of the nets was not a transaction within the partnership agreement. In an action for accounting, defendant maintained that even if he were denied rent, he was entitled to compensation for the work he had done in designing and constructing the nets with no assistance whatever from plaintiff. Held, decision denying compensation to defendant affirmed. Waagen v. Gerde, (Wash. 1950) 219 P. (2d) 595