Regional/District economic developments: District economic overview (and) state economic conditions

Federal Reserve District, 5th ; Economic indicators ; Economic conditions

Regional/District economic development : District economic overview and State economic conditions

Federal Reserve District, 5th ; Economic conditions ; Economic indicators

Optical properties and bioavailability of dissolved organic matter along a flow-path continuum from soil pore waters to the Kolyma River mainstem, East Siberia

The Kolyma River in northeast Siberia is among the six largest Arctic rivers and drains a region underlain by vast deposits of Holocene-aged peat and Pleistocene-aged loess known as yedoma, most of which is currently stored in ice-rich permafrost throughout the region. These peat and yedoma deposits are important sources of dissolved organic matter (DOM) to inland waters that in turn play a significant role in the transport and ultimate remineralization of organic carbon to CO2 and CH4 along the terrestrial flow-path continuum. The turnover and fate of terrigenous DOM during offshore transport largely depends upon the composition and amount of carbon released to inland and coastal waters. Here, we measured the ultraviolet-visible optical properties of chromophoric DOM (CDOM) from a geographically extensive collection of waters spanning soil pore waters, streams, rivers, and the Kolyma River mainstem throughout a  ∼  250 km transect of the northern Kolyma River basin. During the period of study, CDOM absorption coefficients were found to be robust proxies for the concentration of DOM, whereas additional CDOM parameters such as spectral slopes (S) were found to be useful indicators of DOM quality along the flow path. In particular, the spectral slope ratio (SR) of CDOM demonstrated statistically significant differences between all four water types and tracked changes in the concentration of bioavailable DOC, suggesting that this parameter may be suitable for clearly discriminating shifts in organic matter characteristics among water types along the full flow-path continuum across this landscape. However, despite our observations of downstream shifts in DOM composition, we found a relatively constant proportion of DOC that was bioavailable ( ∼  3–6 % of total DOC) regardless of relative water residence time along the flow path. This may be a consequence of two potential scenarios allowing for continual processing of organic material within the system, namely (a) aquatic microorganisms are acclimating to a downstream shift in DOM composition and/or (b) photodegradation is continually generating labile DOM for continued microbial processing of DOM along the flow-path continuum. Without such processes, we would otherwise expect to see a declining fraction of bioavailable DOC downstream with increasing residence time of water in the system. With ongoing and future permafrost degradation, peat and yedoma deposits throughout the northeast Siberian region will become more hydrologically active, providing greater amounts of DOM to fluvial networks and ultimately to the Arctic Ocean. The ability to rapidly and comprehensively monitor shifts in the quantity and quality of DOM across the landscape is therefore critical for understanding potential future feedbacks within the Arctic carbon cycle

A circumpolar perspective on fluvial sediment flux to the Arctic ocean

Quantification of sediment fluxes from rivers is fundamental to understanding land‐ocean linkages in the Arctic. Numerous publications have focused on this subject over the past century, yet assessments of temporal trends are scarce and consensus on contemporary fluxes is lacking. Published estimates vary widely, but often provide little accessory information needed to interpret the differences. We present a pan‐arctic synthesis of sediment flux from 19 arctic rivers, primarily focusing on contributions from the eight largest ones. For this synthesis, historical records and recent unpublished data were compiled from Russian, Canadian, and United States sources. Evaluation of these data revealed no long‐term trends in sediment flux, but did show stepwise changes in the historical records of two of the rivers. In some cases, old values that do not reflect contemporary fluxes are still being reported, while in other cases, typographical errors have been propagated into the recent literature. Most of the discrepancy among published estimates, however, can be explained by differences in years of records examined and gauging stations used. Variations in sediment flux from year to year in arctic rivers are large, so estimates based on relatively few years can differ substantially. To determine best contemporary estimates of sediment flux for the eight largest arctic rivers, we used a combination of newly available data, historical records, and literature values. These estimates contribute to our understanding of carbon, nutrient, and contaminant transport to the Arctic Ocean and provide a baseline for detecting future anthropogenic or natural change in the Arctic

Intrusive Academic Advising Student-Athletes At A Division III University

Abstract There are many factors that affect the graduation of collegiate student-athletes. Factors include student-athlete characteristics, academic advising, engagement, and relationships. These factors affect student-athlete retention at the university. Student-athletes must navigate their academic and athletic success with assistance from academic advisors and other university support systems. The ability of the student-athlete and the academic advisor to communicate and cultivate a relationship that is built on regularly scheduled meetings, sharing of the student-athlete’s personal goals, suggestions for personal and professional improvement culminating in trust is paramount to the success of the student-athlete. This research focuses on the relationship between the student-athlete and the academic advisor at a Division III Midwest university through survey and interviews. Through survey and interviews of student-athletes, this research shows the engagement and relationships between student-athletes and their academic advisor, and the university outside of athletics

Science and the Language of Natural History Museum Architecture: Problems of Interpretation

The historicist styles and decorative schemas of natural history museums built from the 1850s to the 1930s provide a unique opportunity to study the architectural expression of scientific ideas. At the same time, the significance of individual buildings varies widely. Drawing on examples from Britain, Ireland, Canada and continental Europe, this article explores three specific problems that arise in the interpretation of the architectural language of natural history museums. Firstly, the same motifs can convey very different meanings in different places. Secondly, the same governing idea can be communicated through different architectural styles which in turn inflect the idea itself. Finally, it is often hard to reconstruct the exact roles of the different actors in creating a museum building. The most complex museums, and the most challenging and rewarding to analyse, are those with the greatest number of scientists and artists working together to create them