1,762 research outputs found

    Is worry different from rumination? Yes, it is more predictive of psychopathology!

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    Objective: Although worry and rumination are everyday phenomena as well as common symptoms across numerous psychopathological disorders, the theoretical and clinical delineations of both concepts need more clarification. This study explored the degree of overlap between worry and rumination on the levels of standardized questionnaires and a priori lay concepts. Method: The subjective conceptualization of worry and of rumination of 221 undergraduate and graduate students was assessed with the semantic differential technique, together with the frequency and intensity with which they experienced worry and rumination (based on their lay concepts). Standardized self-report measures for worry, rumination, depression, and anxiety were also administered. Results: Worry was viewed as more negative than rumination and was more predictive of anxiety as well as of depression than rumination, especially when the assessment was based on the subjective lay concepts. The different measures of worry and rumination were only moderately correlated with each other. Conclusion: It is concluded that the lay concepts worry and rumination and the hypothetical constructs worry and rumination should not be confused in personality and clinical research.Hintergrund: Die Konzepte "Sorgen" und "Grübeln" bezeichnen gleichermaßen Alltagserleben wie auch verbreitete psychopathologische Symptome. Dennoch bedarf es einer klareren theoretischen und klinischen Abgrenzung zwischen beiden Konzepten. In der vorliegenden Studie untersuchten wir, inwieweit sich Symptome des Sich-Sorgens und des Grübelns überlappen, wenn sie einerseits mittels standardisierter Fragebögen, andererseits auf der Basis von Häufigkeitsangaben, die auf a-priori gegebene Laienkonzepte der Probanden zurückgingen, erfasst wurden. Methoden: Die subjektiven Konzepte von "Sorgen" und "Grübeln" von 221 deutschsprachigen Studenten wurden mit dem Semantischen Differential untersucht, ferner die Häufigkeit und Intensität, mit der Sorgen und Grübeln erlebt wurden. Standardisierte Fragebögen für Sorgen, Grübeln, Depression und Angst wurden ebenfalls eingesetzt. Ergebnisse: Sich-Sorgen wurden als negativer eingeschätzt als Grübeln und prädizierte sowohl Angst- als auch Depressionssymptome besser als Grübeln. Dies galt besonders dann, wenn den Häufigkeitsangaben die Laienkonzepte zugrunde lagen. Die verschiedenen Maße für Sorgen und Grübeln waren nur mäßig miteinander korreliert. Schlussfolgerung: Unsere Schlussfolgerung ist, dass die Laienkonzepte "Sich-Sorgen" und "Grübeln" und die entsprechenden hypothetischen Konstrukte in der Persönlichkeits- und klinischen Forschung nicht miteinander vermischt werden sollten

    Linda Grace Hoyer Updike: Woman, Author, and Mother

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    Linda Grace Hoyer was a brilliant individual. She graduated from Ursinus College at the age of nineteen, received a master\u27s from Cornell University, and after many years of diligent work, published two novels and a myriad of short stories. She lived an unusual life: reflective, feminine in her thought processes, but nevertheless somewhat stubborn in a time when women were meant to fill a subordinate role. I have found through my research that Hoyer\u27s brilliance did not lie in her intellect and writing alone. In fact, as demonstrated by her literature\u27s autobiographical nature, her brilliance as a writer seemed to stem from her unique ability as a human being and mother. Through short stories and letters that were never published, as well as through an interview with her son, John Updike, I found that she had a very deep capacity to love. This love manifested itself in a strong bond with her native Pennsylvania, in her forty-some cats, and in her son. She loved the farm where she was born (and later died) despite the years she spent there utterly alone. She loved her son despite his fame and prestige; fame and prestige she never experienced as a writer. She loved to write, despite bearing seemingly endless rejections. It was her love, as a woman and mother, which emanated from her writing, and made her the brilliant author that she was

    Quantum Dot Blueing and Blinking Enables Fluorescence Nanoscopy

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    We demonstrate superresolution fluorescence imaging of cells using bioconjugated CdSe/ZnS quantum dot markers. Fluorescence blueing of quantum dot cores facilitates separation of blinking markers residing closer than the diffraction barrier. The high number of successively emitted photons enables ground state depletion microscopy followed by individual marker return with a resolving power of the size of a single dot (similar to 12 nm). Nanoscale imaging is feasible with a simple webcam

    The picture of David Hoyer from Jan Kupecký at Leipzig

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    The thesis focuses on portrait on painting of David Hoyer from baroque artist Jan Kupecky that is placed in Museum der bildenden Künste in Leipzig. Firstly, I will deal with life and work of the author Jan Kupecky. The main focus will be dedicated to the painting from 1711 which depicts Saxon painter David Hoyer with lyra. I will try to unveil more information about life of the depicted man, consequently, I will concentrate on the actual type of portaval style and mention other significant work of the same nature made by the author prior 1711. This actual painting example will allow me to show how the portrait creation was forming not only in life of Jan Kupecky but also in context of whole Europe

    On the polynomial integrability of the Hoyer systems

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    Agraïments: The second author is supported by FCT through the project PTDC/MAT/117106/2010 and through CAMGSD, Lisbon.The Hoyer polynomial differential systems depend on nine parameters. We provide necessary conditions in order that these systems have two functionally independent polynomial first integrals. We show that these conditions are not sufficient. Additionally, we illustrate how can be computed the polynomial first integrals of these systems using the Kovalevsky exponents

    On the polynomial integrability of the Hoyer systems

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    Agraïments: The second author is supported by FCT through the project PTDC/MAT/117106/2010 and through CAMGSD, Lisbon.The Hoyer polynomial differential systems depend on nine parameters. We provide necessary conditions in order that these systems have two functionally independent polynomial first integrals. We show that these conditions are not sufficient. Additionally, we illustrate how can be computed the polynomial first integrals of these systems using the Kovalevsky exponents

    Molecular Orientation Affects Localization Accuracy in Superresolution Far-Field Fluorescence Microscopy

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    We investigate the cooperative effect of molecular tilt and defocus on fluorophore localization by centroid calculation in far-held superresolution microscopy based on stochastic single molecule switching, If tilt angle and defocus are unknown, the localization contains systematic errors up to about +/-125 nm. When imaging rotation-impaired fluorophores of unknown random orientation, the average localization accuracy in three-dimensional samples is typically limited to about +/-32 nm, restricting the attainable resolution accordingly

    Mullins_June_2018_ASR_media_abstracts – Supplemental material for A Systematic Assessment of “Axial Age” Proposals Using Global Comparative Historical Evidence

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    Supplemental material, Mullins_June_2018_ASR_media_abstracts for A Systematic Assessment of “Axial Age” Proposals Using Global Comparative Historical Evidence by Daniel Austin Mullins, Daniel Hoyer, Christina Collins, Thomas Currie, Kevin Feeney, Pieter François, Patrick E. Savage, Harvey Whitehouse and Peter Turchin in American Sociological Review</p

    mullins_online_supplement_ – Supplemental material for A Systematic Assessment of “Axial Age” Proposals Using Global Comparative Historical Evidence

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    Supplemental material, mullins_online_supplement_ for A Systematic Assessment of “Axial Age” Proposals Using Global Comparative Historical Evidence by Daniel Austin Mullins, Daniel Hoyer, Christina Collins, Thomas Currie, Kevin Feeney, Pieter François, Patrick E. Savage, Harvey Whitehouse and Peter Turchin in American Sociological Review</p
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