Evolution of the rates of mass wasting and fluvial sediment transfer from the epicentral area of the 1999, Mw 7.6 earthquake

The 1999 Chichi earthquake (Mw=7.6) triggered more than 20,000 landslides in the epicentral area in central west Taiwan, and subsequent typhoons have caused an even larger number of slope failures. As a result, the suspended sediment load of the epi- central Choshui River has increased dramatically. Measurements of suspended sedi- ment at a downstream gauging station indicate that the unit sediment concentration increased about six times due to the earthquake, and decreased exponentially due to flushing by subsequent typhoons. The e-folding time scale of the seismic perturbation of sediment transfer in the Choshui River is 3-5 years. Based on this estimate of the de- cay of the erosional response to the earthquake, a mass balance can be calculated for the earthquake, including co-seismic uplift and subsidence, post-seismic relaxation, and erosion. This mass balance shows that the Chi-Chi earthquake has acted to build ridge topography in the hanging wall of the fault, but in the far field, some destruc- tion of topography has occurred. However, our estimate of seismically-driven erosion may be incomplete. A detailed analysis of landsliding in the Chenyoulan tributary of the Choshui River indicates that most co-and post seismic landslide debris remains on hillslopes within the catchment. Recent typhoons have continued to cause high rates of landsliding high in the landscape, but rates of mass wasting near the stream net- work have decreased. The full geomorphic response to the Chi-Chi earthquake may be much larger, and more protracted than indicated by river gauging data

Charles Meunier\u27s plaquette, 1900, La Relieuse | The Bookbinder : a rare and beautiful depiction of the bookbinder in medallic art.

1 folded leaf; 1 pewter plaquette. Text written and plaquette created by Henry Morris at the Bird & Bull Press. 1 folded leaf in blue cloth case stamped in silver. Pewter plaquette fits in frame in case. The promotional plaquette of bookbinder Charles Meunier is a reproduction of a work by Maurice Favre exhibited in 1903. It depicts a bookbinder at her sewing frame. Lettered on reverse Aux amis la maison du livre 1900, Ch. Meunier. (To the friends of the 1900 book house, Ch. Meunier.). Gift of the Joseph Paulsen family. Curated title for Fleet Library Special Collections exhibition By Hand: Women & Books Exhibit fall, 2021.https://digitalcommons.risd.edu/specialcollections_books_graphicdesign/1007/thumbnail.jp

A new function of hydrocarbons in insect communication : maternal care and offspring signalling in the European earwig

International audienc

Phase behavior of a confined nano-droplet in the grand-canonical ensemble: the reverse liquid-vapor transition

The equilibrium density distribution and thermodynamic properties of a Lennard-Jones fluid confined to nano-sized spherical cavities at constant chemical potential was determined using Monte Carlo simulations. The results describe both a single cavity with semipermeable walls as well as a collection of closed cavities formed at constant chemical potential. The results are compared to calculations using classical Density Functional Theory (DFT). It is found that the DFT calculations give a quantitatively accurate description of the pressure and structure of the fluid. Both theory and simulation show the presence of a ``reverse'' liquid-vapor transition whereby the equilibrium state is a liquid at large volumes but becomes a vapor at small volumes.Comment: 13 pages, 8 figures, to appear in J. Phys. : Cond. Mat

Erik Satie’s Socrate (1918), Myths of Marsyas, and un style dépouillé

In arguing that underneath the placid, 'stripped-down' style of Socrate there lurks a hidden violence, this essay does not focus on Satie's compositional process, documented in his notebooks; instead, it examines Socrate's performance history and the creation of the work's libretto, which the composer completed before sketching his musical ideas. Satie's novel selection and setting of the text is critical to this reading. The author examines how Satie reinterprets the violent myth of Marsyas and Apollo in the first movement, and how he ruminates on Socrates's dying words in the last movement. Understanding the ideas and events that led to the creation of Satie's enigmatic masterpiece allows us to view Socrate's portrayal of Plato's dialogues as part of a project of dépouillement, a neoclassical aesthetic that sought to strip down musical material in favor of an ascetic aesthetic uniting musical and moral Hellenism. This reading of Socrate allows us to reexamine the early 20th-century style dépouillé and to place Socrate at the center of debates on Socrates, Hellenism, and morality

The ground-based solar observations database BASS 2000

BASS 2000 is the French solar database for ground-based instruments. We describe hereafter our organization, our tasks and the products we can deliver to the international community. Our prospects cover data mining into the THeMIS archive, a participation to the EST endeavour and the creation and curation of the ESPaDOnS/NARVAL stellar spectra database.Comment: 3 pages, 1 figure (to appear in the Procs. of Solar Polarization Workshop #5, eds. Berdyugina, Nagendra and Ramelli

The multi-functional foot in athletic movement: Extraordinary feats by our extraordinary feet

The unique architecture of the foot system provides a sensitive, multi-tensional method of communicating with the surrounding environment. Within the premise of the paper, we discuss three themes: complexity, degeneracy and bio-tensegrity. Complex structures within the foot allow the human movement system to negotiate strategies for dynamic movement during athletic endeavours. We discuss such complex structures with particular attention to properties of a bio-tensegrity system. Degeneracy within the foot structure offers a distinctive solution to the problems posed by differing terrains and uneven surfaces allowing lower extremity structures to overcome perturbation as and when it occurs. This extraordinary structure offers a significant contribution to bipedalism through presenting a robust base of support and as such, should be given more consideration when designing athletic development programmes

Boron enrichment in Martian clay

We have detected a concentration of boron in martian clay far in excess of that in any previously reported extra-terrestrial object. This enrichment indicates that the chemistry necessary for the formation of ribose, a key component of RNA, could have existed on Mars since the formation of early clay deposits, contemporary to the emergence of life on Earth. Given the greater similarity of Earth and Mars early in their geological history, and the extensive disruption of Earth's earliest mineralogy by plate tectonics, we suggest that the conditions for prebiotic ribose synthesis may be better understood by further Mars exploration

The writings of Belgian engineer Arthur Vierendeel (1852-1940): homo universalis or contemporary propagandist?

During the last decade of the nineteenth century, Belgian engineer and professor Arthur Vierendeel - mostly known for the Vierendeel, a frame without diagonal rigidifying elements - published a series of books in which he expounded his views on the use of steel in architecture and engineering. Vierendeel described the structural possibilities of constructing in iron, and also theorized how this ‘new’ material should capture its own architectural style. Structural aesthetics is derived from rivets, proportions, tie rods, columns and covering strips whereas auxiliary aesthetics can be created through adding ceramics, other metals and decorative painting. Formal issues had to surpass structural considerations, or in Vierendeel’s words: “Pour les constructions métalliques les dimensions doivent être déterminées à priori par des considérations esthétiques et qu’après seulement il y a lieu de recourir à la formule mathématique.