131,581 research outputs found
Emma Vogelsburg Mueller and John G. Mueller
No full textPhotograph shows studio bust portrait of Emma Vogelsburg Mueller and John G. Mueller.Photographer's imprint on mount:""H.J. Braunig / Hallettsville / Texas.
On the algebraic characterization of a Mueller matrix in polarization optics - I. Identifying a mueller matrix from its N matrix
No full textWe revisit the problem of identifying a Mueller matrix M through its N matrix N = (M) over tilde GM where G is the familiar Minkowski matrix diag (1, -1, -1, -1) and the tilde denotes matrix transposition. Using the standard methods of reduction of symmetric matrices (tensors) to their canonical forms in Minkowski space, we then show that there exist only two algebraically distinct types of Mueller matrices, which we call types I and II, and obtain the necessary and sufficient conditions for a Mueller matrix in terms of the eigenproperties of the associated N matrix. These conditions identify a Mueller matrix precisely and completely unlike the conditions derived earlier by Givens and Kostinski or by van der Mee. Observing that every Mueller matrix discussed hitherto in the literature is of the type I only, we construct examples of type-II Mueller matrices using the more familiar type-I (in fact pure Mueller) Mueller matrices. Further, we show that every G eigenvalue of an N matrix (see section 2 for a definition) is necessarily non-negative. Using this result, in an accompanying paper, we derive a general three-term factorization of a Mueller matrix which yields the general forms of Mueller and Jones-derived Mueller matrices and completely solves the problem of their algebraic structure
Data from: Vacancy-assisted superfluid drag
No full textPlease cite as: Thomas G. Kiely, Chao Zhang, Erich J. Mueller. (2025) Data From: Vacancy-assisted superfluid drag. [dataset] Cornell University Library eCommons Repository. https://doi.org/10.7298/jarj-a938These files contain the data which was used to generate the graphs in Kiely et al. Vacancy-assisted superfluid drag, PRA 2025. We study superfluid drag in the two-component Bose-Hubbard model with infinitely strong repulsive interactions. In this system, all transport is mediated by the motion of empty sites, or ``holes", and it is hard to move one component without moving the other. We demonstrate, with a combination of analytic and numeric techniques, that the motion of holes leads to strong dissipationless coupling between currents in the two components. This behavior is attributable to polaronic correlations that emerge in the presence of spin currents, which can be observed in experiments. We derive a closed-form expression for the coupling on various lattices in arbitrary spatial dimensions, which we verify through numerical simulations on two dimensional lattices.Thomas G Kiely acknowledges support from the National Science Foundation under grant PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP), and the Gordon and Betty Moore Foundation through Grant GBMF8690 to the University of California, Santa Barbara. Chao Zhang acknowledges support from the National Natural Science Foundation of China (NSFC) under Grant Nos. 12204173, 12275002, and the University Annual Scientific Research Plan of Anhui Province under Grant No 2022AH010013. Erich J Mueller acknowledges support from the National Science Foundation under grant PHY-2409403
Engagiert für alte Menschen – Hilarion G. Petzold und die Gerontotherapie
No full textDie Arbeit stellt die „gerontotherapeutischen“ Konzepte von Hilarion G. Petzold vor und damit ein Stück Entwicklung moderner Gerontotherapie, die von diesem Pionier der psychotherapeutischen Behandlung alter Menschen als eine integrative „biopsychosoziale“ bzw. sozialökologische Praxis entwickelt wurde. Besonders wird auf seine Entwicklungen der gerontologischen und thanatologischen Weiterbildung für Angehörige helfender, medizinischer und pflegende Berufe in Österreich seit 1977 eingegangen und auf die dabei entstandenen innovativen Modelle. Praxisbeispiel gerontotherapeutischer Arbeit illustrieren die Konzepte.This article is presenting the concepts of “gerontotherapy” as developed by Hilarion G. Petzold, which in the same time depicts some of the developments of modern gerontotherapy, that has been elaborated by this pioneer of psychotherapeutic treatment of the elderly in his integrative “biopsychosocial” approach. Particularly his developments in the training of the helping professions, medical and nursing staff concerning gerontology and thanatology in Austria since 1977 is emphasized leading to innovative models. Practical examples from gerontotherapeutic treatment are illustrating the concepts exposed.https://www.fpi-publikation.de/polyloge/32-2008-mueller-lotti-engagiert-fuer-alte-menschen-hilarion-g/peerReviewedpublishedVersio
A two dimensional velocity model for the upper mantle beneath Fennolora from seismic surface waves and body waves.
No full textPlastic and environmental safety: the effects of EDCs on metabolism, reproduction and epigenetic processes
No full textPer inquinamento causato dalle materie plastiche si intende l’accumulo in ambiente di prodotti plastici in grado di indurre problemi sia all’ambiente che alle specie selvatiche. Il Bisfenolo A (BPA) è uno dei distruttori endocrini maggiormente prodotti a livello mondiale durante la lavorazione della plastica. Numerosi studi hanno mostrato la capacità di questo inquinante di creare effetti dannosi sia sull’uomo che sulle specie selvatiche, per cui nel tempo sono stati compiuti diversi tentativi volti a trovare delle valide alternative. Tra i possibili sostituti, in questo studio di dottorato, l’attenzione è stata focalizzata sul Dhietylene dibenzoato (DGB) ed il Diisononilftalato (DiNP).
Lo scopo principale di questo progetto è stato quindi quello di studiare l’impatto di questi plastificanti, focalizzando l’attenzione sui loro effetti nella riproduzione e nel metabolismo lipidico. Gli effetti del nonilfenolo, dell’ottilfenolo (t-OP) e del BPA sul metabolismo lipidico, sono stati inoltre analizzati in giovanili di orata.
I risultati ottenuti hanno dimostrato come, sia il BPA, che il DiNP, siano in grado di interferire con il processo di oogenesi e che, sia il BPA che il DGB, sono in grado di interferire con il metabolismo lipidico nello zebrafish.
La somministrazione a giovanili di orata di mangimi contaminati con diversi inquinanti tra cui il BPA, ha mostrato la loro capacità di indurre disordini metabolici, mostrando come oltre all’esposizione ambientale, anche il consumo di cibi contaminati possa essere considerata una fonte di esposizione importante ai contaminanti.
Concludendo, il presente progetto di dottorato, mostra la capacità di alcuni distruttori endocrini, utilizzati nella lavorazione della plastica e nei detergenti, di interferire con la riproduzione ed il metabolismo lipidico nei teleostei, agendo prevalentemente in maniera dose dipendente, secondo curve non-monotoniche e, nel caso del BPA, interferendo con i meccanismi epigenetici
Mueller, Milda G (Birth, 1910-02-16)
No full textAddress: 12 E-13th St823/1910Original record filed in drawer labeled 'MUELLER-MULLER'
On the algebraic characterization of a Mueller matrix in polarization optics - II. Necessary and sufficient conditions for Jones-derived mueller matrices
No full textWe show that every Mueller matrix, that is a real 4 x 4 matrix M which transforms Stokes vectors into Stokes vectors, may be factored as M = L2KL1 where L-1 and L-2 are orthochronous proper Lorentz matrices and K is a canonical Mueller matrix having only two different forms, namely a diagonal form for type-I Mueller matrices and a non-diagonal form (with only one non-zero off-diagonal element) for type-II Mueller matrices. Using the general forms of Mueller matrices so derived, we then obtain the necessary and sufficient conditions for a Mueller matrix M to be Jones derived. These conditions for Jones derivability, unlike the Cloude conditions which are expressed in terms of the eigenvalues of the Hermitian coherency matrix T associated with M, characterize a Jones-derived matrix M through the G eigenvalues and G eigenvectors of the real symmetric N matrix N = (M) over tilde GM associated with M. Appending the passivity conditions for a Mueller matrix onto these Jones-derivability conditions, we then arrive at an algebraic identification of the physically important class of passive Jones-derived Mueller matrices
Mueller (Birth, 1876-06-23)
No full textAddress: 601 Vine St.2456/Pg.17/1876/F W/G. Bruhl, MDOriginal record filed in drawer labeled 'MUELLER-MULLER'
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