2,462,315 research outputs found
Map Collection - Accession 1535
The Map Collection consists of various maps from around the world and contains original maps and reproductions of historical maps. This collection focuses on maps from the Southern United States and South Carolina and North Carolina in particular, but also contain maps featuring Africa, Alabama, Arkansas, Asia, Central America, Europe, Florida, Georgia, Global, Holy Land, Kentucky, Louisiana, Mississippi, North America, South America, Tennessee, United States, Virginia, and World War II as well.https://digitalcommons.winthrop.edu/manuscriptcollection_findingaids/2577/thumbnail.jp
Change of the plane of oscillation of a Foucault pendulum from simple pictures
The change of the plane of oscillation of a Foucault pendulum is calculated
without using equations of motion, the Gauss-Bonnet theorem, parallel
transport, or assumptions that are difficult to explain.Comment: 5 pages, 4 figure
Working With Administration: Getting and Keeping Support for Professional Development Programs
Outline
Positioning Your Office: The Real Organization Chart
Seven Competencies Required of Faculty Developers
Seven Competencies Required of Administrator
Phantom maps and chromatic phantom maps
In the first part, we determine conditions on spectra X and Y under which
either every map from X to Y is phantom, or no nonzero maps are. We also
address the question of whether such all or nothing behaviour is preserved when
X is replaced with V smash X for V finite. In the second part, we introduce
chromatic phantom maps. A map is n-phantom if it is null when restricted to
finite spectra of type at least n. We define divisibility and finite type
conditions which are suitable for studying n-phantom maps. We show that the
duality functor W_{n-1} defined by Mahowald and Rezk is the analog of
Brown-Comenetz duality for chromatic phantom maps, and give conditions under
which the natural map Y --> W_{n-1}^2 Y is an isomorphism.Comment: 18 page
Maps conjugating holomorphic maps in C^n
If f is a bijection from C^n onto a complex manifold M, which conjugates
every holomorphic map in C^n to an endomorphism in M, then we prove that f is
necessarily biholomorphic or antibiholomorphic. This extends a result of A.
Hinkkanen to higher dimensions. As a corollary, we prove that if there is an
epimorphism from the semigroup of all holomorphic endomorphisms of C^n to the
semigroup of holomorphic endomorphisms in M, or an epimorphism in the opposite
direction for a doubly-transitive M, then it is given by conjugation by some
biholomorphic or antibiholomorphic map. We show also that there are two
unbounded domains in C^n with isomorphic endomorphism semigroups but which are
neither biholomorphically nor antibiholomorphically equivalent.Comment: 10 page
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Heating experiments of the Tagish Lake meteorite: Investigation of the effects of short-term heating on chondritic organics
We present in this study the effects of short-term heating on organics in the Tagish Lake meteorite and how the difference in the heating conditions can modify the organic matter (OM) in a way that complicates the interpretation of a parent body’s heating extent with common cosmothermometers. The kinetics of short-term heating and its influence on the organic structure are not well understood, and any study of OM is further complicated by the complex alteration processes of the thermally metamorphosed carbonaceous chondrites—potential analogues of the target asteroid Ryugu of the Hayabusa2 mission—which had experienced posthydration, short-duration local heating. In an attempt to understand the effects of short-term heating on chondritic OM, we investigated the change in the OM contents of the experimentally heated Tagish Lake meteorite samples using Raman spectroscopy, scanning transmission X-ray microscopy utilizing X-ray absorption near edge structure spectroscopy, and ultraperformance liquid chromatography fluorescence detection and quadrupole time of flight hybrid mass spectrometry. Our experiment suggests that graphitization of OM did not take place despite the samples being heated to 900 °C for 96 h, as the OM maturity trend was influenced by the heating conditions, kinetics, and the nature of the OM precursor, such as the presence of abundant oxygenated moieties. Although both the intensity of the 1s σ* exciton cannot be used to accurately interpret the peak metamorphic temperature of the experimentally heated Tagish Lake sample, the Raman graphite band widths of the heated products significantly differ from that of chondritic OM modified by long-term internal heating
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