2,994 research outputs found
Terminaster HESS 1974
No full text<i>TERMINASTER</i> HESS, 1974 <p> <i>Asterias</i> Quenstedt, 1876: 49, pl. 91, fig. 155. <i>Terminaster</i> Hess, 1974: 647; Hess, 1986: 47.</p> <p> <i>Type species</i>: <i>Asterias cancriformis</i> Quenstedt, 1876.</p> <p> <i>Diagnosis</i>: Disc small. Disc and arm with imbricate skeleton. Plates polygonal to weakly lobate. Large primary spines present. Terminal plate enlarged.</p>Published as part of <i>Mah, Christopher, 2007, Phylogeny of the Zoroasteridae (Zorocallina; Forcipulatida): evolutionary events in deep-sea Asteroidea displaying Palaeozoic features, pp. 177-210 in Zoological Journal of the Linnean Society 150 (1)</i> on page 194, DOI: 10.1111/j.1096-3642.2007.00291.x, <a href="http://zenodo.org/record/5430876">http://zenodo.org/record/5430876</a>
Terminaster cancriformis Hess 1974
No full textTERMINASTER CANCRIFORMIS (QUENSTEDT, 1876) Asterias cancriformis Quenstedt, 1876: 49, pl. 91, fig. 155. Terminaster cancriformis Hess, 1974: 647; 1986: 47. Occurrence: English Oxford Clay, Callovian to Middle Oxfordian (Mid to Late Jurassic) marls of the French and Swiss Jura.Published as part of Mah, Christopher, 2007, Phylogeny of the Zoroasteridae (Zorocallina; Forcipulatida): evolutionary events in deep-sea Asteroidea displaying Palaeozoic features, pp. 177-210 in Zoological Journal of the Linnean Society 150 (1) on page 194, DOI: 10.1111/j.1096-3642.2007.00291.x, http://zenodo.org/record/543087
Divergence bias in Hess compared to Harms screen strabismus testing
No full textThe Hess and the Harms screen test each have different testing distances. While the Harms screen test is usually performed at 2.5 m, the Hess screen test is performed at 0.5 m. The geometry of the closer testing distance of the Hess screen test requires an increase of the convergence angle by 6°. This study investigates the quantitative differences between the two frequently employed screen tests. Ocular deviation of 18 normal subjects and 36 patients with congenital or acquired paralytic or concomitant strabismus were assessed with a complete orthoptic examination including alternate prism cover testing at near (nPCT) and far (fPCT), as well as Hess and Harms screen testing. One-way ANOVA was used for statistical analysis. The Hess test recorded more overall exodeviation compared to the Harms test for patients (mean difference -3.50°, 95% limits of agreement (CI) = [-4.79, -2.21], p < .001), and controls (mean difference -1.78°, CI = [-2.99, -0.56], p = .004). For vertical deviations, there was no statistically significant difference between the two tests for patients (mean difference +0.75°, CI = [-0.41, +1.91], p = .251), and controls (mean difference -0.28°, CI = [-0.68, -0.11], p = 0.231). This study emphasizes the importance to consider the divergence bias when comparing the Hess to the Harms screen test, which is likely explained by the greater vergence demand dependent on the closer testing distance. The exodeviation shift tended to be more pronounced in patients than controls, which may imply that patients with strabismus have an impaired convergence drive.
Keywords: Harms test; Hess test; prism cover test; strabismus; tangent screen test; vergence
Flora Louise Hess Property
No full textEntry created by John H. Herrick January 7, 1974.John H. Herrick Archives: Documenting Structures at The Ohio State UniversityThe University Archives has determined that this item is of continuing value to OSU's history.The Flora Louise Hess Property was located at 2637 and 2703 Olentangy River Road. This property was never officially named by Board of Trustees action. It was purchased from Flora Louise and Elizabeth H. Hess. The author has never heard it referred to as anything, but the "Flora Louise Hess" property
Eine neue Analyse des PeVatron Kandidaten HESS J1646–458 mit einer neuartigen Analysetechnik
No full textThe observed spectrum of cosmic rays (CRs), arriving at earth from the universe, requires the existence of cosmic particle accelerators, able to produce PeV energy particles.
The detection of the VHE gamma ray source HESS J1646–458 proposed the young massive stellar cluster Westerlund 1 as such a galactic PeVatron.
However, the nature of HESS J1646–458 could not be firmly established.
Using a significantly enlarged set of ~162.6h of H.E.S.S. gamma ray data, a new analysis of HESS J1646–458 is performed and the role of Wd1 acting as galactic PeVatron is re-evaluated.
The uniquely complex emission structure of HESS J1646–458 complicates the analysis of the gamma ray data.
Advanced analysis techniques such as hadronic background estimation using a 3D template model and the novel 3D maximum-likelihood analysis are applied.
Different gamma ray emission scenarios are considered including a stationary modelling of the gamma ray producing parent particle populations.
In this new analysis, no significant indication for energy dependent morphology or spectral variation over HESS J1646–458 is found.
A single counterpart for the gamma ray emission seems to be possible, however it cannot be excluded that multiple sources could contribute.
The entire gamma ray emission can be described by a power law spectrum with an exponential cut-off at ~100 TeV (>37.2 TeV at 95% confidence level), matching the spectral characteristics expected for PeVatrons.
Galactic Diffuse emission is taken into account and found to be sub-dominantly contributing.
The scenario of HESS J1646–458 to be a single very extended pulsar wind nebula, suggested by the vicinity of the pulsar PSR J1648–4611, is discussed.
This scenario is found to be generally possible, however some of the associated properties of the supposed PWN would be atypical and the scenario would be difficult to reconcile with the exact morphology of HESS J1646–458.
A hadronic scenario involving protons accelerated by Wd1 is found to be plausible.
A stationary modelling of the corresponding present-age proton population revealed a proton cut-off energy of ~5 PeV (>413 TeV at 95% confidence level), consistent with the expectation for PeV accelerators.
This new analysis further supports Wd1 for being the counterpart of HESS J1646–458 and to act as a galactic PeVatron.Das beobachtete Spektrum kosmischer Strahlung, das aus dem All auf unsere Erde trifft, erfordert die Existenz kosmischer Teilchenbeschleuniger, die in der Lage sind Teilchen auf PeV Energien zu beschleunigen.
Die Detektion der sehr hochenergetischen Gammastrahlungsquelle HESS J1646–458 induzierte die Vermutung, dass der junge und massereiche Sternenhaufen Westerlund 1 als ein solcher galaktischer PeVatron agieren könnte.
Die tatsächliche Natur von HESS J1646–458 konnte allerdings nicht eindeutig bestimmt werden.
Mit einem auf ~162.6 Stunden signifikant vergrößerten Satz an H.E.S.S. Gammastrahlungsdaten wird eine neue Analyse von HESS J1646–458 durchgeführt und die Rolle von Wd1 als galaktischer PeVatron neu bewertet.
Die extrem komplexe Struktur der Gammastrahlungsregion verkompliziert die Analyse enorm.
Fortgeschrittene Analysetechniken wie die Abschätzung des hadronischen Untergrundsignals mittels eines 3D Template Modells und die neuartige 3D Maximum-Likelihood Analyse werden angewandt.
Verschiedene Gammastrahlungsszenarien werden angesprochen inklusive einer stationären Modellierung der strahlungserzeugenden Teilchenpopulation.
In dieser neuen Analyse wurden keine signifikanten Anzeichen von energieabhängiger Morphologie oder spektraler Variation über HESS J1646–458 gefunden.
Es scheint möglich, dass die Gammastrahlung von einer einzigen Quelle verursacht wird, wobei nicht ausgeschlossen werden kann, dass mehrere Quellen beitragen könnten.
Das Spektrum der gesamten Gammastrahlungsregion kann mit einem Potenzgesetz mit exponentiellem Abfall bei ~100 TeV (>37.2 TeV auf 95% Konfidenzniveau) beschrieben werden, was konsistent mit den Erwartungen an das Spektrum eines PeVatrons wäre.
Galaktisch diffuse Emission ist berücksichtigt aber trägt nur wenig bei.
Das Szenario, in dem HESS J1646–458 ein einziger sehr ausgedehnter Pulsarwindnebel sein könnte und welches durch die Nähe zum Pulsar PSR J1648–4611 suggeriert wird, wird diskutiert.
Das Szenario scheint möglich, die mit dem potenziellen Pulsarwindnebel verbundenen Eigenschaften wären allerdings untypisch und die exakte Morphologie von HESS J1646–458 könnte nur schwer mit dem Szenario in Einklang gebracht werden.
Ein hadronisches Szenario, in dem Protonen in oder von Wd1 beschleunigt werden, scheint dagegen plausibel.
Die stationäre Modellierung der heutigen Protonenverteilung offenbart einen spektralen Abfall bei ~5 PeV (>413 TeV auf 95% Konfidenzniveau), was mit der Erwartung für PeV Beschleuniger kompatibel wäre.
Diese neue Analyse bekräftigt die Rolle von Wd1 als Pendant zu HESS J1646–458 und als galaktischer PeVatron
Keynote Address
No full textEarl J. Hess, the Stewart McClelland Distinguished Professor in the Humanities at Lincoln Memorial University in Harrogate, Tennessee, delivered the keynote address. Dr. Hess is the author of several significant books on Civil War military conflict, including The Union Soldier in Battle: Enduring the Ordeal of Combat
The Protection of Privacy in the Case Law of the CJEU
No full textThe Court of Justice of the EU judgment on data protection and internet search engines : current issues and future challenges / Christopher Kuner -- The CJEU judgment in Google Spain : notes on its causes and perspectives on its consequences / Cristian Oro Martinez -- The CJEU’s decision on the data retention directive / Martin Nettesheim -- The CJEU’s decision on the data retention directive : transnational aspects and the push for harmonisation : a comment on Professor Martin Nettesheim / Georgios Dimitropoulos -- The protection of privacy in the case law of the CJEU / Burkhard Hess -- Freedom of speech and foreign defamation judgments : from New York Times v Sullivan via Ehrenfeld to the 2010 SPEECH Act / Cristina M Mariottini
Moses Hess, Marx and Money
No full textThis essay investigates triadic patterns of argument in the thought of Moses Hess. Three kinds of triadic thinking are distinguished: the triadic pattern of three succeeding ages of mankind; the triadic pattern of original unity, fallen or alienated existence, and return to unity on a higher level; and the triad of head, heart and stomach, a symbolism which recurs in the writings of the Young Hegelians. Distinguishing these patterns throws an interesting light on the similarities and differences between the views of Hess and Marx on the role of the proletariat in history. A translation by the author of Hess's "On the Essence of Money" is appended to the essay
Replicating five pupillometry studies of Eckhard Hess
No full textSeveral papers by Eckhard Hess from the 1960s and 1970s report that the pupils dilate or constrict according to the interest value, arousing content, or mental demands of visual stimuli. However, Hess mostly used small sample sizes and undocumented luminance control. In a first experiment (N = 182) and a second preregistered experiment (N = 147), we replicated five studies of Hess using modern equipment. Our experiments (1) did not support the hypothesis of gender differences in pupil diameter change with respect to baseline (PC) when viewing stimuli of different interest value, (2) showed that solving more difficult multiplications yields a larger PC in the seconds before providing an answer and a larger maximum PC, but a smaller PC at a fixed time after the onset of the multiplication, (3) did not support the hypothesis that participants’ PC mimics the pupil diameter in a pair of schematic eyes but not in single-eyed or three-eyed stimuli, (4) did not support the hypothesis of gender differences in PC when watching a video of a male trying to escape a mob, and (5) supported the hypothesis that arousing words yield a higher PC than non-arousing words. Although we did not observe consistent gender differences in PC, additional analyses showed gender differences in eye movements towards erogenous zones. Furthermore, PC strongly correlated with the luminance of the locations where participants looked. Overall, our replications confirm Hess's findings that pupils dilate in response to mental demands and stimuli of an arousing nature. Hess's hypotheses regarding pupil mimicry and gender differences in pupil dilation did not replicate.</p
Henri Temianka Correspondence; (hess)
No full textThis collection contains material pertaining to the life, career, and activities of Henri Temianka, violin virtuoso, conductor, music teacher, and author. Materials include correspondence, concert programs and flyers, music scores, photographs, and books.https://digitalcommons.chapman.edu/temianka_correspondence/3601/thumbnail.jp
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