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51 Bowling, David R.Ecological processes dominate the 13C land disequilibrium in a Rocky Mountain subalpine forestFossil fuel combustion has increased atmospheric CO2 by ≈ 115 μmol mol1 since 1750 and decreased its carbon isotope composition (δ13C) by 1.7-2‰(the 13C Suess effect). Because carbon is stored in the terrestrial biosphere for decades and longer, the δ13C of CO2 released by terrestrial ecosyst...2014-01-01
52 Ehleringer, James R.; Bush, Sarah ElizabethEcophysiology of riparian cottonwood and willow before, during, and after two years of soil water removalRiparian cottonwood/willow forest assemblages are highly valued in the southwestern United States for their wildlife habitat, biodiversity, and watershed protection. Yet these forests are under considerable threat from climate change impacts on water resources and land-use activities to support hum...Riparian cottonwood; Riparian willow; Soil water removal; Coyote willow; Drought recovery; Populus fremontii; Riparian ecology; Red Butte Canyon Research Natural Area; Salix exigua; Stem sap flux; Leaf carbon isotope ratios2010
53 Bowling, David R.Interannual variation in seasonal drivers of soil respiration in a semi-arid Rocky Mountain meadowSemi-arid ecosystems with annual moisture inputs dominated by snowmelt cover much of the western United States, and a better understanding of their seasonal drivers of soil respiration is needed to predict consequences of climatic change on soil CO2 efflux. We assessed the relative importance of tem...2012-01-01
54 Hawken, Leanne SueSchoolwide behavior support: creating urban schools that accommodate diverse learnersToday's educators face a growing challenge to meet both the instructional and behavioral needs of all students (Kame'enui & Carnine, 1998; Martella, Nelson, & Marchand-Martella, 2003; Sugai, Kame'enui, Horner, & Simmons, 2002). The No Child Left Behind Act of 2001 has called for educational practi...2003
55 Anderson, Richard Bryan; England, Mark M.; Kendall, Mark M.Patron-driven acquisition of journal articles using ReadCube at the University of UtahThe University of Utah Library has teamed with a new company, Labtiva, to experiment with a product called ReadCube Access. This product allows the library to provide access to journal articles using a patron-driven acquisition (PDA) mechanism, using a tiered pricing structure based on level and per...2013-11-06
56 Hultine, Kevin; Bush, Sarah Elizabeth; Ehleringer, James R.Effect of gender on sap-flux-scaled transpiration in a dominant riparian tree species: Box elder (Acer negundo)Acer negundo is a dioecious riparian tree species with a spatial segregation of the sexes along soil moisture gradients. Females are typically more common in wet sites along streams (typically F/M = 1.6), whereas males are more common in drier sites away from streams (typically F/M = 0.6). Spatial s...Density; Ecosystem; Segregation2007
57 Forster, Richard R.Explaining the presence of perennial liquid water bodies in the firn of the Greenland Ice SheetRecent observations have shown that the firn layer on the Greenland Ice Sheet features subsurface bodies of liquid water at the end of the winter season. Using a model with basic firn hydrology, thermodynamics, and compaction in one dimension, we find that a combination of moderate to strong surface...2014-01-01
58 Garrett, Timothy J.Novel basis for interpreting recent acceleration of anthropogenic carbon dioxide emissionsThis paper presents a simple thermodynamic model for understanding economic and carbon dioxide emissions growth.Thermodynamics; Economics; Climate; Growth2008
59 Forster, Richard R.Summer melt regulates winter glacier flow speeds throughout AlaskaPredicting how climate change will affect glacier and ice sheet flow speeds remains a large hurdle toward accurate sea level rise forecasting. Increases in surface melt rates are known to accelerate glacier flow in summer, whereas in winter, flow speeds are believed to be relatively invariant. Here ...2013-01-01
60 Rahman, AowabinPredicting fuel consumption for commercial building with machine learning algorithmsThis paper presents a modeling framework that uses machine learning algorithms to make longterm, i.e. one year-ahead predictions, of fuel consumption in multiple types of commercial prototype buildings at one-hour resolutions. Weather and schedule variables were used as model inputs, and the hourly ...Building energy modeling; Machine learning; Prediction; Heating load; Data-driven modeling2017-08
61 Steenburgh, William JamesEpisodic dust events of Utahs Wasatch Front and adjoining regionEpisodic dust events cause hazardous air quality along Utah's Wasatch Front and dust loading of the snowpack in the adjacentWasatch Mountains. This paper presents a climatology of episodic dust events of the Wasatch Front and adjoining region that is based on surface weather observations from the Sa...2012-01-01
62 Von Arnim, Rudiger LennartLabor productivity and energy use in a three sector model: an application to EgyptThis paper presents a model of a developing economy with three sectors| industry, agriculture, and energy. Industry and energy are assumed to be demand- constrained, but agriculture supply-constrained. The model highlights (a) structural transformation, through labor transfer from agriculture to in...2010
63 Ogburn, Joyce L.Acquiring minds want to know: digital scholarship, a new scholarly enterpriseA new form of scholarship has emerged in recent years that can be called digital scholarship. I have seen it defined as online publishing or digitized material presented online, or, in other words, scholarship that appears in a digital form. However, a more compelling definition treats it as scholar...Born digital; Libraries; Electronic publishing2003
64 Jarrard, Richard D.Milankovitch paleoceanographic cycles in geophysical logs from ODP Leg 105, Labrador Sea and Baffin BayOcean Drilling Program (ODP) Sites 645 and 646, in Baffin Bay and the Labrador Sea, respectively, were logged following drilling during Leg 105. Geophysical logs in ODP drill sites yield long, continuous records of sedimentary sequences and thus provide the opportunity for examining evidence of peri...1990
65 Rogers, Alan R.Pleistocene population X-plosion?In two recent papers, Kaessmann et al. presented DNA sequence data from the X chromosome (Xq13.3) of 30 chimpanzees and 69 humans (Kaessmann et al. 1999a; Kaessmann et al. 1999b). These data bear on two longstanding questions involving late Pleistocene demographic history: (1) whether the long-term...2000
66 Ehleringer, James R.Intra- and interspecific variation for summer precipitation use in pinyon-juniper woodlandsIn the arid southwest of North America, winter precipitation penetrates to deep soil layers, whereas summer"monsoon" precipitation generally wets only surface layers. Use of these spatially separated water sources was determined for three dominant tree species of the pinyon-juniper ecosystem at six ...D/H ratios; Juniperus osteosperma; Pinus edulis; pinyon-juniper ecosystem; plant water sources; precipitation use; Quercus gambelii; roots; Photosynthetic gas exchange; Monsoon2000
67 Douglas, A. E.Researches in dendrochronologyThe Labora I or v ol Tre e-Ring Research of the I 'mversi tv of Arizona lias developed a new source of climatic data in tile rings of properly located trees and a new method of cyclic analysis specially adapted to handling climatic changes. These two features seem to the writer to open a gateway thr...1946-07-12
68 Ehleringer, James R.ENSO effects on primary productivity in Southern Atacama desertIn the winter-rain southern Atacama Desert of the Coquimbo Region of Chile, El Niño - Southern Oscillation (ENSO) events modulate primary productivity. In this region, there are important changes in water availability between La Niña (dry) and El Niño (rainy) years. Using interannual comparison...El Niño; Atacama Desert; Terrestrial ecosystems; Plant productivity2006
69 Ehleringer, James R.Potential adaptability and constraints of response to changing climates for Encelia farinosa var. phenicodonta from southern Baja California, MexicoTo examine the physiological adaptability of Encelia farinosa var. phenicodonta from southern Baja California, plants from Todos Santos, BCS were raised in central Arizona where winter-spring precipitation is greater than typically experienced by this variety. Plants were capable of high photosynthe...Encelia farinosa var. phenicodonta; Ecophysiology1996
70 Coley, Phyllis D.; Kursar, Thomas A.Effects of weather on fungal abundance and richness among 25 communities in the Intermountain WestBecause moisture and temperature influence the growth of fungi, characterizing weather conditions favorable for fungi may be used to predict the abundance and richness of fungi in habitats with different climate conditions. To estimate habitat favorability to fungi, we examined the relationship of f...Intermountain West; Utah; Microclimate; Fungal prevalence2002
71 Brown, Francis HaroldThe evolution of neogene terrestrial ecosystems in EuropeThe Pliocene-Pleistocene chronology of hominid and other vertebrate evolution in East Africa is largely constrained by isotopic dating and regional intercorrelation of volcanic ash layers. Some eruptions were of sufficient magnitude or duration that their widespread tephra dispersal defines a serie...1999
72 Horel, John D.The climatology of synoptic-scale ascent over Western North America: a perspective on storm tracksThe position and variability of storm tracks across western North America are examined during the October-April cool seasons spanning 1989-2010. The location and intensity of storms are represented by strong synoptic-scale ascent, which is diagnosed by the alternative balance omega equation applied ...2012-01-01
73 Francis, John G.Resourceful responses: the adaptive research university and the drive to marketA major challenge for contemporary public research universities is the need to affirm to the public and to the political community that the quality of higher education found at these largely autonomous institutions is of such import that it should be sustained by both public and private support. Thi...State Universities; Higher Education; Public institutions1999
74 Adler, Robert W.Changing the Law-Science Paradigm for Colorado River RestorationLegal mandates and scientific realities conflict when existing legal principles do not match the realities and limits of current science. Those conflicts can be addressed if scientists communicate the limits of existing scientific capabilities and if the legal system responds accordingly2008
75 Ehleringer, James R.Tracing changes in ecosystem function under elevated carbon dioxide conditionsResponses of ecosystems to elevated levels of atmospheric carbon dioxide (CO2) remain a critical uncertainty in global change research. Two key unknown factors are the fate of carbon newly incorporated by photosynthesis into various pools within the ecosystem and the extent to which elevated CO2 is...Elevated carbon dioxide; Stable isotopes; Radiocarbon; Global change; Terrestrial ecosystems2003
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