State of America's Libraries Special Report: Pandemic Year Two

In 2021, libraries of all types stepped up to meet the needs of their communities as they responded to the impacts of a second year of the global pandemic. Library staff in every state faced an unprecedented number of attempts to ban books. ALA's Office for Intellectual Freedom tracked 729 challenges to library, school, and university materials and services in 2021, resulting in more than 1,597 individual book challenges or removals. Most targeted books were by or about Black or LGBTQIA+ persons. Read more about the Top Ten Most Challenged Books of 2021 and libraries' response to the pandemic in the State of America's Libraries Special Report: Pandemic Year Two

Holts Summit (Devonian) conodonts from Missouri

The conodonts of a previously unrecognized Upper Devonian formation, the Holts Summit, are unusually abundant and include unique forms which have not been elsewhere reported from strata of North America. An assemblage from Germany as described by Sannemann is closely allied to the fauna of the Holts Summit. The Devonian fauna and the stratigraphic relationships exclude the Holts Summit from the Bushberg and "Basal Mississippian" of previous authors. Lack of recognition in the past of the Holts Summit as a unit has led to the inclusion of its fauna in other faunal lists preventing correlation with these units in this report on the basis of the fauna. The highly plastic state of development of the fauna is discussed and three new genera are recognized. A partial faunal list is submitted which will enable recognition of the Holts Summit fauna and permit correlation with this unit

A Study of Heavy Higgs Properties at a Multi-TeV e+e- Collider

The precise determination of the masses of the neutral and charged heavy Higgs bosons is a crucial input for the study of Supersymmetry and its relation with cosmology through dark matter. This paper presents a study of e+e- -> HA and H+H- production at sqrts=3 TeV. The analysis is performed with full simulation and reconstruction accounting for beamstrahlung effects and the overlay of gamma gamma -> hadrons events. Results are presented in terms of the accuracy on the determination of the masses and widths of the heavy Higgs bosons in two benchmark scenarios.Comment: 6 pages, 1 figure, to appear in the Proceedings of the International Workshop on Future Linear Colliders LCWS201

Electrical methods of determining soil moisture content

The electrical permittivity of soils is a useful indicator of soil moisture content. Two methods of determining the permittivity profile in soils are examined. A method due to Becher is found to be inapplicable to this situation. A method of Slichter, however, appears to be feasible. The results of Slichter's method are extended to the proposal of an instrument design that could measure available soil moisture profile (percent available soil moisture as a function of depth) from a surface measurement to an expected resolution of 10 to 20 cm

Lawrence, Nietzsche, and the will to power

Thesis (B.A.) in Comparative Literature -- University of Illinois at Urbana-Champaign, 1988.Bibliography: leaf 61.Microfiche of typescript. [Urbana, Ill.]: Photographic Services, University of Illinois, U of I Library, [1988]. 2 microfiches (76 frames): negative

Characterisation of a Pixel Sensor in 0.20 micron SOI Technology for Charged Particle Tracking

This paper presents the results of the characterisation of a pixel sensor manufactured in OKI 0.2 micron SOI technology integrated on a high-resistivity substrate, and featuring several pixel cell layouts for charge collection optimisation. The sensor is tested with short IR laser pulses, X-rays and 200 GeV pions. We report results on charge collection, particle detection efficiency and single point resolution.Comment: 15 pages, 11 figures, submitted to Nuclear Instruments and Methods

A Rad-hard CMOS Active Pixel Sensor for Electron Microscopy

Monolithic CMOS pixel sensors offer unprecedented opportunities for fast nano-imaging through direct electron detection in transmission electron microscopy. We present the design and a full characterisation of a CMOS pixel test structure able to withstand doses in excess of 1 MRad. Data collected with electron beams at various energies of interest in electron microscopy are compared to predictions of simulation and to 1.5 GeV electron data to disentagle the effect of multiple scattering. The point spread function measured with 300 keV electrons is (8.1 +/- 1.6) micron for 10 micron pixel and (10.9 +/- 2.3) micron for 20 micron pixels, respectively, which agrees well with the values of 8.4 micron and 10.5 micron predicted by our simulation.Comment: 16 pages, 9 figures, submitted to Nucl. Instr and Meth