49,432 research outputs found

    Pachydiadematidae Chan & Dreyer & Gale & Glenner & Ewers-Saucedo & Pérez-Losada & Kolbasov & Crandall & Høeg 2021, FAM. NOV.

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    ††FAMILY PACHYDIADEMATIDAE FAM. NOV. Z o o b a n k r e g i s t r a t i o n: l s i d: u r n: l s i d: z o o b a n k. org:act: A16DF979-F1B2-4678-87F3-D3753B05F90B † † Pa ch y d i a d e m a Wi t h e r s, 1 9 3 5 (T y p e g e n u s) (Cretaceous) (one species)Published as part of Chan, Benny K. K., Dreyer, Niklas, Gale, Andy S., Glenner, Henrik, Ewers-Saucedo, Christine, Pérez-Losada, Marcos, Kolbasov, Gregory A., Crandall, Keith A. & Høeg, Jens T., 2021, The evolutionary diversity of barnacles, with an updated classification of fossil and living forms, pp. 789-846 in Zoological Journal of the Linnean Society 193 on page 833, DOI: 10.1093/zoolinnean/zlaa160, http://zenodo.org/record/563727

    The Optical Spectrum Of The Diamantane Radical Cation

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    Diamondoids are a class of stable, aliphatic molecules arranged in cage-like structures and serve as a link between small, cyclic hydrocarbons and bulk nanodiamonds. Similarities have been observed between the infrared spectra of diamondoids and unidentified infrared emission bands seen in the spectra of young stars with circumstellar disks.1^{1} It is also suggested that the radical cations of these molecules could contribute to features in the well-known but largely unassigned diffuse interstellar bands due to their low ionization energy and absorption in the visible range.2^{2} However, only the optical spectrum of the adamantane cation has been measured so far.3^{3} Herein, we report the first optical spectrum of the diamantane radical cation (\chem{C_{14}H_{20}^+}) between 400 and 1000 nm in the gas phase. Measurements were taken in a tandem mass spectrometer by photodissociation of mass-selected ions cooled in a cryogenic 22-pole ion trap held at 5 K. The optical spectrum reveals two broad and unresolved bands centered near 760 and 450 nm that are assigned to the \chem{D_2(^2E_u)} \leftarrow \chem{D_0(^2A_{1g})} and \chem{D_5(^2A_{2u})} \leftarrow \chem{D_0(^2A_{1g})} transitions using time-dependent density function theory calculations. These calculations also assist to explain the lack of vibrational structure as the result of lifetime broadening and Franck-Condon congestion arising from large geometry changes.\\ \noindent Literature:\\ \noindent 1^{1}O. Pirali, M. Vervloet, J. E. Dahl, R. M. K. Carlson, A. G. G. M. Tielens, J. Oomens, Astrophys. J., 661, 919–925 (2007).\\ \noindent 2^{2}M. Steglich, F. Huisken, J. E. Dahl, R. M. K. Carlson, T. Henning, Astrophys. J., 729, 91–100 (2011). \\ \noindent 3^{3}P. B. Crandall, D. Müller, J. Leroux, M. Förstel and O. Dopfer, 2020, Astrophys. J. Letters, 900, L2

    G. M. Hopkins

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    [sound recording] / Brendan O'Grady. G. B. Shaw by Fran Frazer.; 1 sound cassette (60 minutes); Broadcast on CFCY Radio, Charlottetown, March 07 & 11, 1974.; G. B. ShawSource type: Electronic(1

    Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)

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    In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola

    The M&G Drive

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    abstract: The M&G Drive is a proposed venture project lead by Barrett seniors, Elijah Smith and Jenna Fitzgerald. This project aims to educate Arizona State University (ASU) students on the issues of food insecurity around the Phoenix valley and facilitate their involvement in helping alleviate this pressing social matter. Scientific research has shown significant inverse relationships between food insecurity and the following: mental and physical health, social skills, and academic achievement. As the largest public university in the nation, Arizona State holds a self-ascribed responsibility for the health of its communities. In order to address this issue on behalf of Arizona State and from the standpoint of college students, this proposed venture will encourage the ASU student population to reallocate their unused M&G Dollars (ASU’s on-campus currency) to go toward this cause. Rather than being absorbed back by the university system, unused M&G Dollars can instead be used to purchase non-perishables that will then be donated to the local Phoenix community in order to help fight against food insecurity

    Lah–Ribarič type inequalities for (h, g; m)-convex functions

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    Recently introduced new class of (h, g; m)-convex functions unifies a certain range of convexity, thus allowing the generalizations of know results. In this paper we prove Lah–Ribarič type inequalities for (h, g; m)-convex functions from which we obtain inequalities of Hermite–Hadamard, Fejér, Giaccardi, Popoviciu and Petrović. © 2021, The Author(s) under exclusive licence to The Royal Academy of Sciences, Madrid

    Some properties of viscosity solutions of Hamilton-Jacobi equations

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    Recently M. G. Crandall and P. L. Lions introduced the notion of "viscosity solutions" of scalar nonlinear first order partial differential equations. Viscosity solutions need not be differentiable anywhere and thus are not sensitive to the classical problem of the crossing of characteristics. The value of this concept is established by the fact that very general existence, uniqueness and continuous dependence results hold for viscosity solutions of many problems arising in fields of application. The notion of a " viscosity solution" admits several equivalent formulations. Here we look more closely at two of these equivalent criteria and exhibit their virtues by both proving several new facts and reproving various known results in a simpler manner. Moreover, by forsaking technical generality we hereby provide a more congenial introduction to this subject than the original paper.</p
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