198 research outputs found
Polypedilum stephani Lehmann 1981
No full textstephani Lehmann, 1981: Spixiana (Supplement), 5: 37 (Polypedilum (Tripodura)). Type locality. Democratic Republic of the Congo, Simisimi-Bach, Kisangani Distribution. AF: Democratic Republic of the Congo.Published as part of Zhang, Ruilei, Song, Chao, Qi, Xin & Wang, Xinhua, 2016, Taxonomic review on the subgenus Tripodura Townes (Diptera: Chironomidae: Polypedilum) from China with eleven new species and a supplementary world checklist, pp. 1-53 in Zootaxa 4136 (1) on page 48, DOI: 10.11646/zootaxa.4136.1.1, http://zenodo.org/record/39978
Acrolejeunea crassicaulis Jian Wang
No full textAcrolejeunea crassicaulis (Steph.) Jian Wang bis et Gradst., Bryophyte Diversity Evol. 36 (1): 38, 2014 (see Wang et al. 2014c). BASIONYM: Hygrolejeunea crassicaulis Steph., Sp. Hepat. (Stephani) 5: 550, 1914 (see Stephani 1914).Published as part of Söderström, Lars, Hagborg, Anders & Konrat, Matt Von, 2016, Early Land Plants Today: Index of Liverworts & Hornworts 2013 - 2014, pp. 133-185 in Phytotaxa 269 (3) on page 135, DOI: 10.11646/phytotaxa.269.3.1, http://zenodo.org/record/477969
The Afterlife and the Unconscious with Stephani Stephens:New Thinking Allowed
No full textStephani Stephens, PhD, served on the Executive Committee of the International Association of Jungian Studies. Currently, she is a Lecturer in Counseling at the University of Canberra and is a practicing psychotherapist in Canberra, Australia. She is the recipient of the 2018 Frances P. Bolton Fellowship from the Parapsychology Foundation. She is author of C. G. Jung and the Dead: Visions, Active Imagination and the Unconscious Terrain.Here she describes Carl Jung's encounters with the departed during dreams and visions – as reported in his autobiography and journals. She points out that he distinguished between "souls without bodies" and the other figures of the unconscious mind. Jung's explorations are akin to encounters with the afterlife as described by Homer and Virgil in classical literature. They are also relevant to psychical research and parapsychology.New Thinking Allowed host, Jeffrey Mishlove, PhD, is author of The Roots of Consciousness, Psi Development Systems, and The PK Man. Between 1986 and 2002 he hosted and co-produced the original Thinking Allowed public television series. He is the recipient of the only doctoral diploma in "parapsychology" ever awarded by an accredited university (University of California, Berkeley, 1980)
Stephani cosmology: entropically viable but observationally challenged
No full textAbstract Inhomogeneous cosmological models such as the Stephani universes could, in principle, provide an explanation for the observed accelerated expansion of the Universe. Working with a concrete, popular model of the Stephani cosmology – the Stephani-Da̧browski model, we found that it is entropically viable. We also comment on the energy conditions and the two-sheeted geometry of the spacetime. However, similar to the LTB models, despite satisfying the holographic principle, Stephani cosmology has difficulty satisfying all the constraints from observations
The White Rose and their American connections
No full textRichards-Wilson, Stephani
This chapter is a contribution to a larger OER text for community college students. The White Rose was a Nazi resistance group operating in and around Munich in 1942-1943. Although far away in time and space, the author discusses the groups connections to the United States, then and now.To view the entire book this chapter is from use the link below
Klaus Mann: German-American Veteran in the Pursuit of a Pan-European Peace
No full textRichards-Wilson, Stephani
Klaus Mann was the son of German Noble Laureate Thomas Mann. In this chapter, the author discusses the challenges of Klaus Mann who sought a Pan-European Peace in the early 20th century. She concludes that he deserves more credit than he has been given in the long shadow of his father, a literary giant. Klaus fought the Nazis "with pen and sword." He left Nazi Germany and enlisted in the US Army. He was gay, German, and of Jewish heritage. Yet, he risked his life on more than one occasion to fight fascism and his former countrymen. Although he always felt like an outsider, he made a difference. His writings continue to inspire
<a href="https://psu.pb.unizin.org/holocaust3rs/chapter/new-2-5-first-person-the-artist-as-witness-falk-harnack/" target="_blank" rel="noreferrer noopener">First person: The artist as witness – Falk Harnack</a>
No full textRichards-Wilson, Stephani
This chapter is part of an OER text published by Penn State. The author was invited to participate given her published research on Nazi resisters. Falk Harnack was the brother-in-law of Dr. Mildred Fish-Harnack. Dr. Fish-Harnack was the only American woman executed on Adolf Hiter's direct orders for her resistance efforts in Nazi Germany. She was born in Milwaukee, Wisconsin and graduated from the University of Wisconsin-Madison. She and her husband were leaders in the resistance group called the Red Orchestra. Falk Harnack was a witness to the resistance in both Berlin and Munich. This is his story.To access this material, please use the URL below
Dissertatio inauguralis of Serbian poet Laza Kostić: 'De legibus serbicis Stephani Uros Dusan'
No full textOn the basis of the archival material he recently discovered, the author provides the answer to the question he asked in his recently published paper: 'Defense of doctorate by Serbian poet Laza Kostić in Pest in 1866: Dissertatio or Theses?' By analyzing the previously unknown contents of Kostić's doctoral diploma and original records from his doctoral examinations at the Royal University in Pest (1864-1866), the author concludes that Laza Kostić was awarded the title of 'Doctor of General Law', both civil and canonical (doctor universi iuris, utriusque iuris), on the basis of defending the work of a smaller volume 'Theses e(x) scientiis juridicis et politicis', but also by the presentation of dissertatio inauguralis called 'De legibus serbicis Stephani Uros Dusan'. The author believes that this information significantly complements our knowledge of the study of Dušan's legislation in the mid-nineteenth century and enables us to better understand the overall extent of Serbian cultural elite in Hungary at that time
Ignition and hydrodynamic ejections by laser-induced breakdowns
No full textA focused laser can cause optical breakdown of gas, forming a high-temperature plasma that rapidly absorbs laser energy. As a source of heat and radical species, laser-based energy deposition can be an effective ignition source, and its relative versatility and precision make it an attractive alternative to conventional ignition methods. Understanding of the breakdown-induced flow, its dependence on details of the plasma generation, and how it can alter and tailor ignition and subsequent flame growth will facilitate incorporation into engineering applications such as internal combustion engines and supersonic propulsion systems.
Direct numerical simulation with five gas models, in conjunction with an energy-deposition model that reproduces key experimental observations, is used to analyze the post-breakdown flow and ignition dynamics by direct numerical simulation. A perfect-gas model shows that the breakdown-induced flow occurs primarily by hydrodynamic processes that explain a curious experimental observation: hot gas ejects from the breakdown region along the laser axis, traveling up to distances several times the plasma kernel size, and can reverse direction for small changes in breakdown conditions. Vorticity-generating mechanisms are quantified and shown to be sensitive to asymmetries in the kernel's hydrodynamic expansion, and changes to the kernel geometry can lead to the observed ejection or its reversal. Even subtle alterations—such as a 20% increase in aspect ratio—can lead to qualitative differences in the vorticity dynamics and ultimate flow pattern.
Rich flow phenomenology is caused by dual-pulse configurations, and mechanisms by which the ejection can be disrupted or enhanced by the second deposition are analyzed. For simultaneous depositions, vorticity generation can be suppressed by even a small secondary kernel, preventing the ejection from forming, whereas for time-delayed depositions, asymmetry in the kernel expansion can amplify ejection or precipitate its reversal. The time delay and spatial offset between two depositions are controlled to enhance the dispersal of hot gas, which is shown to increase the burning rate of a nascent hydrogen flame.
This sensitivity of the breakdown-induced flow to energy deposition warrants an assessment of nonequilibrium-plasma effects on the hydrodynamics, which are analyzed using a two-temperature argon-plasma model. We show that electron recombination can occur on the time scale of the plasma's hydrodynamic expansion and provide an avenue for the formation energy of ions to be converted to mechanical work on the gas, thereby enhancing the expansion and altering the vorticity distribution.
Finally, we analyze how these flow mechanisms can couple with the ignition of a fuel–oxidizer interface. We first consider the detailed hydrogen-combustion model, and results are generalized to heavy fuels with a reduced model. Heat release by radical recombination is a primary mechanism by which the ejected gas maintains the temperature ignition threshold as it is transported towards fuel. For depositions close to a fuel lighter than oxygen, the expanding kernel interacts with the mixture density mismatch to produce a flow that repels hot gas away, in some cases leading to ignition failure. This flow pattern is absent for heavy fuels, which more readily ignite in this non-premixed configuration due to suppression of the adverse flow response.Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2021-03-04 without embargo termsThe student, Jonathan Wang, accepted the attached license on 2020-08-22 at 10:34.The student, Jonathan Wang, submitted this Dissertation for approval on 2020-08-22 at 10:39.This Dissertation was approved for publication on 2020-08-25 at 15:11.DSpace SAF Submission Ingestion Package generated from Vireo submission #15780 on 2021-03-04 at 15:33:27Made available in DSpace on 2021-03-05T21:36:44Z (GMT). No. of bitstreams: 2
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Previous issue date: 2020-08-2
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