198,725 research outputs found
Schediasmatis Philologico-Critici Dissertatio VI ... Rogat M. Zach. Goeze, Mülh. Gymnas. Rector MDCCII.
No full textSCHEDIASMATIS PHILOLOGICO-CRITICI DISSERTATIO VI ... ROGAT M. ZACH. GOEZE, MÜLH. GYMNAS. RECTOR MDCCII.
Schediasmatis Philologico-Critici Dissertatio VI ... Rogat M. Zach. Goeze, Mülh. Gymnas. Rector MDCCII.
Arithmeticam ... (Diss. 6) (1
Leon Kidd and Zach Coleman Interview - Part 2 (Metcalfe County) and Anne Matera Interview - Part 1 (Hart County)
No full text(0:00-9:35)
An interview with Leon Kidd and Zach Coleman by Robert M. Rennick on the place names of communities in Metcalfe County, Kentucky.
(9:37-46:32)
An interview with Anne Matera by Robert M. Rennick on the place names of communities in Hart County, Kentucky
Sam Moore Interview - Part 3 (Green County) and Leon Kidd and Zach Coleman - Part 1 (Metcalfe County)
No full text(0:00-9:49)
An interview with Sam Moore by Robert M. Rennick on the place names of communities in Green County, Kentucky.
(9:50-46:35)
An interview with Leon Kidd and Zach Coleman by Robert M. Rennick on the place names of communities in Metcalfe County, Kentucky
Connecting scattering, monodromy, and MST's renormalized angular momentum for the Teukolsky equation in Kerr spacetime
No full textThe Teukolsky equation describes perturbations of Kerr spacetime and is central to the study of rotating black holes and gravitational waves. In the frequency domain, the Teukolsky equation separates into radial and angular ordinary differential equations. Mano, Suzuki, and Takasugi (MST) found semi-analytic solutions to the homogeneous radial Teukolsky equation in terms of series of analytic special functions. The MST expansions hinge on an auxiliary parameter known as the renormalized angular momentum ν, which one must calculate to ensure the convergence of these series solutions. In this work, we present a method for calculating ν via monodromy eigenvalues, which capture the behavior of ordinary differential equations and their solutions in the complex domain near their singular points. We directly relate the monodromy data of the radial Teukolsky equation to the parameter ν and provide a numerical scheme for calculating ν based on monodromy. With this method we evaluate ν in different regions of parameter space and analyze the numerical stability of this approach. We also highlight how, through ν, monodromy data are linked to scattering amplitudes for generic (linear) perturbations of Kerr spacetime.The material is based upon work supported by NASA under award number 80GSFC21M0002. This work was also supported by NSF Grant No. PHY-1806447 to the University of North Carolina–Chapel Hill. The author also thanks A.C. Ottiwell, B. Wardell, M. Casals, and C.R. Evans for useful discussions. This work makes use of the Black Hole Perturbation Toolkit.https://iopscience.iop.org/article/10.1088/1361-6382/adf0d
A Meroitic Offering Table in the Museo Civico Archeologico in Bologna (Italy). New Evidence of King Yeseboheamani
No full textPatterns of wood carbon dioxide efflux across a 2,000-m elevation transect in an Andean moist forest
No full textDuring a 1-year measurement period, we recorded the CO(2) efflux from stems (R (S)) and coarse woody roots (R (R)) of 13-20 common tree species at three study sites at 1,050, 1,890 and 3,050 m a.s.l. in an Andean moist forest. The objective of this work was to study elevation changes of woody tissue CO(2) efflux and the relationship to climate variation, site characteristics and growth. Furthermore, we aim to provide insights into important respiration-productivity relationships of a little studied tropical vegetation type. We expected R (S) and R (R) to vary with dry and humid season conditions. We further expected R (S) to vary more than R (R) due to a more stable soil than air temperature regime. Seasonal variation in woody tissue CO(2) efflux was indeed mainly attributable to stems. At the same time, temperature played only a small role in triggering variations in R (S). At stand level, the ratio of C release (g C m(-2) ground area year(-1)) between stems and roots varied from 4:1 at 1,050 m to 1:1 at 3,050 m, indicating the increasing prevalence of root activity at high elevations. The fraction of growth respiration from total respiration varied between 10 (3,050 m) and 14% (1,050 m) for stems and between 5 (1,050 m) and 30% (3,050 m) for roots. Our results show that respiratory activity and hence productivity is not driven by low temperatures towards higher elevations in this tropical montane forest. We suggest that future studies should examine the limitation of carbohydrate supply from leaves as a driver for the changes in respiratory activity with elevation
Zach\u27s News
No full textWorks of Ecology Pioneer Roland M. Harper Donated by his Biographer and by a Famous Horticulturists. Come in out of the cold... Coming Soon: The ICPSR Social Sciences Data Fai
Eco Digital Construction in Africa: Decolonizing Performative Architecture from the African Fabbers Project to the Douala Cultural Hub
No full textDr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
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