258 research outputs found
Helmick + Schechter : Exquisite Corpse
No full textCapasso describes Helmick and Schechter’s public art installation, which consists of 19 equidistant stained-glass panels that represent anatomical cross-sections of the human body based on data from the Visible Human Project® (National Library of Medicine). Installed in the Minnesota Bureau of Criminal Apprehension, the work also incorporates imagery linked to forensic investigation. Includes technical details on the work and a description of the panels
A characterization of the Schechter essential spectrum on Banach spaces and applications
No full textAbstractIn a recent article by the author (C. R. Acad. Sci. Paris Sér. I 331 (2000) 525–530; Boll. Un. Mat. Ital. (2002), to appear) the Schechter spectrum of closed, densely defined linear operators has been characterized on spaces, which possess the Dunford–Pettis property or which are isomorphic to one of the spaces Lp(Ω), p>1. The purpose of the present work is to extend this analysis to the case of Banach spaces. Further we apply the obtained results to investigate the Schechter essential spectrum of one-dimensional transport equations with different boundary conditions
Professional writing today: A functional approach
No full textThis textbook provides guidance for writing in professional workplaces. This book is ideal for students at the beginning of their careers and entry-level employees looking to move to the next level.open accessPublished. This PDF is a representation of the book as at October 27, 2022. The online version may have been updated and includes interactive components. For the most recent interactive version, please visit the online book linked in this record.business communication and presentationcommunication
Public relations: From strategy to action
No full textPublic Relations: From Strategy to Action guides students through the process and practice of engaging in the world of public relations. The book teaches audience analysis, campaign planning, strategy, tactics, message development, and media relations for the PR practitioners of today and the future.Published. This PDF is a representation of the book as of June, 2023. The online version may have been updated and includes interactive components. For the most recent interactive version, please visit the online book linked in this record.Public relation
Public speaking for today's audiences
No full textPublic Speaking for Today's Audiences explains the process and craft of creating and delivering impactful speeches, both for in-person and digital audiences. This book was written for CMNS 1125: Public Speaking at Douglas College, but could also be a valuable textbook for many other undergraduate professional writing courses (and CMNS 1125 transfers as equivalent to many other post-secondary institutions, especially in British Columbia). It is ideal for students and professionals looking to build skill and confidence in their current and future professions.Published. This PDF is a representation of the book as at January, 2023. The online version may have been updated and includes interactive components. For the most recent interactive version, please visit the online book linked in this record.communicationbusiness communication and presentatio
Generalised CP and A4 family symmetry
No full textWe perform a comprehensive study of family symmetry models based on A4 combined with the generalised CP symmetry H CP. We investigate the lepton mixing parameters which can be obtained from the original symmetry A4 ? H CP breaking to different remnant symmetries in the neutrino and charged lepton sectors. We find that only one case is phenomenologically viable, namely G?CP?ZS2×H?CP in the neutrino sector and GlCP?ZT3?HlCP in the charged lepton sector, leading to the prediction of no CP violation, namely ? CP and the Majorana phases ? 21 and ? 31 are all equal to either zero or ?. We then propose an effective supersymmetric model based on the symmetry A4 ? H CP in which trimaximal lepton mixing is predicted together with either zero CP violation or ? CP ? ±?/2 with non-trivial Majorana phases. An ultraviolet completion of the effective model yields a neutrino mass matrix which depends on only three real parameters. As a result of this, all three CP phases and the absolute neutrino mass scale are determined, the atmospheric mixing angle is maximal, and the Dirac CP can either be preserved with ? CP ?=?0, ? or maximally broken with ? CP ?=?±?/2 and sharp predictions for the Majorana phases and neutrinoless double beta deca
Access for Sale - A New Class of Worm
No full textThe damage inflicted by viruses and worms has been limited because the payloads that are most lucrative to malware authors have also posed the greatest risks to them. The problem facing authors of this self-reproducing malware is that monetizing each intrusion requires the author to risk communication with the infected system or its owner. The tool of choice for malware authors looking to minimize risk and maximize loot has been the carefully target attack, often employing a trojan horses or attack script. However, attacker 's preferences would likely change if they could infect a large number of systems using a worm and sell access to infected systems to other black hats. We introduce a new type of worm that enables this division of labor, installing a back door on each infected system that opens only when presented a system-specific ticket generated by the worm's author. The risk to the worm's author is minimized because he need not communicate with the infected systems. This new class of attack could increase the incentives to write malware and create a market for such specialized skills. In addition to describing this new threat, we propose a number of approaches for defending against it
Majorana neutrino masses from neutrinoless double-beta decays and lepton-number-violating meson decays
No full textAbstractThe Schechter–Valle theorem states that a positive observation of neutrinoless double-beta (0νββ) decays implies a finite Majorana mass term for neutrinos when any unlikely fine-tuning or cancellation is absent. In this note, we reexamine the quantitative impact of the Schechter–Valle theorem, and find that current experimental lower limits on the half-lives of 0νββ-decaying nuclei have placed a restrictive upper bound on the Majorana neutrino mass |δmνee|<7.43×10−29 eV radiatively generated at the four-loop level. Furthermore, we generalize this quantitative analysis of 0νββ decays to that of the lepton-number-violating (LNV) meson decays M−→M′++ℓα−+ℓβ− (for α,β=e or μ). Given the present upper limits on these rare LNV decays, we have derived the loop-induced Majorana neutrino masses |δmνee|<9.7×10−18 eV, |δmνeμ|<1.6×10−15 eV and |δmνμμ|<1.0×10−12 eV from K−→π++e−+e−, K−→π++e−+μ− and K−→π++μ−+μ−, respectively. A partial list of radiative neutrino masses from the LNV decays of D, Ds and B mesons is also given
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