Cordyceps is a genus of perithecial ascomycetes. It includes over 400 species
that are pathogens of arthropods and parasites of the truffle genus Elaphomyces. Based
on the morphology of cylindrical asci, thickened ascus apices and filiform ascospores,
it is classified in the Clavicipitaceae (Hypocreales), which also includes endophytes
and epiphytes...
The strength-normalized fatigue endurance strength of the bulk metallic glass (BMG) Zr₅₂.₅Cu₁₇.₉Ni₁₄.₆Al₁₀Ti₅ (Vitreloy 105) has been reported to be the highest for any BMG; however, to date, there has been no explanation of why this material is so much better than other Zr-based compositions. In this study, the fatigue-crack growth...
Teaching GIS involves teaching ethical and moral thinking as a distinct engagement with
the use, applications, and responsibilities of GIS professionals. Over the past 20 years
scholars (particularly those affiliated with the discipline of Geography) have contributed
critiques of the instrumental nature of GIS as well as reflective case studies...
New types of exchange arrangements are becoming
increasingly popular for a wide range of goods traded
internationally. Several types of countertrade
arrangements have been identified, ranging from pure
barter to more elaborate schemes where only a portion of
the trade is "paid for" in goods, including bilateral
trading agreements with...
With 97% of the world’s freshwater resources stored underground, the connection between groundwater resources to the metrics of space, scale and time common to the geographic study of natural resources has not been extensively investigated by geographers. While nearly 240 transboundary aquifers are mapped across the world, a potential “tragedy”...
In 2001, an extreme drought tightened water supply in the Upper Klamath Basin (basin) while earlier increases in Endangered Species Act (ESA) water requirements for basin fish species that same year elevated demands. The Bureau of Reclamation (Reclamation), which manages irrigation water in parts of the basin located near the...
Fisheries co-management as an alternative to centralized command and
control fisheries management is often suggested as a solution to the
problems of fisheries resource use conflicts and overexploitation. Various
researchers have talked of the importance of studying the role of
transaction costs between different institutional arrangements for managing
fisheries resources....