Learning From Lockdown: How To Develop Blended Learning

William Pope and Andy Markwick provide a case study description of how one school tackled the challenge of remote teaching during the pandemic

Uranium Resource Evaluation Emory Peak Quadrangle Texas

The uranium potential of the 1° by 2° Emory Peak Quadrangle, Texas, was evaluated using criteria established for the National Uranium Resource Evaluation program. Only that portion in the United States was evaluated. Surface and subsurface studies (to a depth of 5,000 ft; 1500 m) were employed, along with chemical, petrologic, hydrogeochemical, and airborne radiometric data. The western half of the quadrangle is in the Basin and Range Province and is characterized by Tertiary silicic volcanic and volcaniclastic rocks overlying Cretaceous carbonate rocks. Stocks and laccoliths of alkalic silicic to mafic rocks intrude both the Tertiary and Cretaceous rocks. The westernmost Great Plains Province (here composed of flat-lying Cretaceous carbonate rocks of the Stockton Plateau) forms the eastern half. Paleozoic leptogeosynclinal rocks of "Ouachita" facies in the Marathon Basin extend into the northern part of the quadrangle. Four environments favorable for uranium deposits have been identified: (1) basal conglomerates and (2) lacustrine-lignite deposits within the Pruett Formation, (3) fluorite deposits at the contacts between alkali rhyolite intrusions and Cretaceous carbonate rocks, and (4) alkaline rhyolitic to syenitic intrusions. Big Bend National Park is largely unevaluated because of access problems with the park service. A karst area near Dryden, which exhibits anomalous uranium, molybdenum, selenium, and arsenic concentrations in stream sediments and which exhibits radiometric anomalies, is also classed as unevaluated because little of it lies within the evaluated area. Another solution feature, the Stilwell Ranch prospect, is interesting academically but is unfavorable.Bureau of Economic Geolog

Creative innovation takes a (team teaching) family

Team teaching can be a valuable means of enabling cross-disciplinary collaboration, interdisciplinary study, and pedagogical innovation, but the logistical and intellectual challenges can seem too daunting to overcome. In this essay, we share the story of how four faculty members from professional writing, communications, and computing sciences developed a team teaching “family” as we imagined, created, launched, and ran an innovative experiential learning program at our university. The Design Thinking Studio in Social Innovation is a semester-long program worth four full courses of credit which brought us together with 14 intrepid students from across the university to learn and apply design thinking, Scrum project management, and social innovation theories to a large-scale civic engagement project. Here we explore the faculty lived experience during the pilot semester and how our teach teaching family was crucial to our personal and professional success in this high-stress environment. We then offer tips for creating your own team teaching “family.

XLVIII.?The interaction of sulphur monochloride and substituted ethylenes

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A Multiple-Attribute Decision Model for Retail Store Location

James A. Pope, PhD, is professor of operations and supply chain management at the Hult International Business School, Cambridge, MA 02141. William R. Lane, PhD, is professor emeritus of finance at the Louisiana State University, Baton Rouge, LA 70803. Jane Stein, DrPH, is retired from the UNC-CH School of Public Health, Chapel Hill, NC 27514

Uranium Resource Evaluation Presidio Quadrangle Texas

The uranium potential of the 1° by 2° Presidio Quadrangle, Texas, was evaluated using criteria devised for the National Uranium Resource Evaluation program. Surface and subsurface studies (to a 5,000 ft; 1500 m depth) were employed, along with chemical, petrologic, hydrogeochemical, and airborne radiometric data (5-mi; 8-km spacing). The entire quadrangle is in the Basin and Range Province and is characterized by Tertiary silicic volcanic rocks (caldera and outflow facies) and tuffaceous sediments, which overlie chiefly Cretaceous carbonate rocks. Presidio Bolson, a large basin filled mostly with detritus from the Chinati Caldera Complex, occupies the southwestern third of the quadrangle bordering the Rio Grande. Favorable environments include the Allen Intrusions, a group of rhyolite domes that contain authigenic (Class 360) type deposits, and Cienega Mountain, a homogeneous riebeckite (peralkaline) rhyolite intrusion that could contain subeconomic or magmatic (Class 310) type deposits. Bolson fill exhibits several characteristics that suggest it could be favorable; however, insufficient information is available for complete evaluation, so it is classed as unevaluated. Well control is sparse; several subsurface environments are judged unfavorable chiefly by analogy with adjacent quadrangles and by projection of unfavorable outcropping rocks.Bureau of Economic Geolog

Shrinkage of Inland Silverside Larvae Preserved in Ethanol and Formalin

Length measurements of preserved larval fish are necessary in many types of larval fish surveys. If the fixative causes significant shrinkage, then the preserved lengths cannot be used to indicate accurate live lengths. The objective of this study was to determine how preservation in two different concentrations of formalin and ethanol affects the total length of larval inland silversides Menidia beryllina. Larvae were measured (nearest 0.1 mm) and individually fixed in one of four fixative treatments (80% ethanol, 100% ethanol, 5% buffered formalin, and 10% buffered formalin). Fish were remeasured (nearest 0.1 mm) at 15 min; 4 h; and 1, 7, 14, and 21 d after preservation. Most shrinkage occurred within the first day after preservation in all four fixatives. Initial length was positively correlated with absolute shrinkage, but percent shrinkage was not affected by initial length. We found no difference in percent shrinkage between the 80% and 100% ethanol concentrations. The 10% buffered formalin caused more percent shrinkage than 5% buffered formalin. Furthermore, ethanol (80% and 100% combined) caused greater percent shrinkage than either 5% or 10% buffered formalin