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Articles 2461 - 2490 of 24230
Full-Text Articles in Physical Sciences and Mathematics
Ecotour Guide Training Program Characteristics And Methods: A Case Study From The African Bush, N.Q. Lackey, L. Pennisi
Ecotour Guide Training Program Characteristics And Methods: A Case Study From The African Bush, N.Q. Lackey, L. Pennisi
School of Natural Resources: Faculty Publications
No abstract provided.
Peregrine Falcon Survival Rates Derived From A Long-Term Study At A Migratory And Overwintering Area In Coastal Washington, D.E. Varland, L.A. Powell, J.B. Buchanan, T.L. Fleming, C. Vanier
Peregrine Falcon Survival Rates Derived From A Long-Term Study At A Migratory And Overwintering Area In Coastal Washington, D.E. Varland, L.A. Powell, J.B. Buchanan, T.L. Fleming, C. Vanier
School of Natural Resources: Faculty Publications
No abstract provided.
Effects Of Liberalizing Harvest Regulations On Canada Goose (Branta Canadensis) Demography In Nebraska, T. Lyons, L. Powell, M. Vrtiska
Effects Of Liberalizing Harvest Regulations On Canada Goose (Branta Canadensis) Demography In Nebraska, T. Lyons, L. Powell, M. Vrtiska
School of Natural Resources: Faculty Publications
No abstract provided.
What Is Happening To Our Common Home: Reflections From One Catholic Scientist And One Theological Ethicist, M. Shulski, D.R. Dileo
What Is Happening To Our Common Home: Reflections From One Catholic Scientist And One Theological Ethicist, M. Shulski, D.R. Dileo
School of Natural Resources: Faculty Publications
No abstract provided.
Diurnal Activity Patterns Of Walia Ibex (Capra Walie) In Simien Mountains National Park, Ethiopia, D. Ejigu, A. Bekele, L.A. Powell
Diurnal Activity Patterns Of Walia Ibex (Capra Walie) In Simien Mountains National Park, Ethiopia, D. Ejigu, A. Bekele, L.A. Powell
School of Natural Resources: Faculty Publications
No abstract provided.
Water Balance Backward: Estimation Of Annual Watershed Precipitation And Its Long-Term Trend With The Help Of The Calibration-Free Generalized Complementary Relationship Of Evaporation, J. Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Reply To “Comment On Two Papers About The Generalized Complementary Evaporation Relationships By Crago Et Al.”, R. Crago, J. Szilagyi, R. Qualls
Reply To “Comment On Two Papers About The Generalized Complementary Evaporation Relationships By Crago Et Al.”, R. Crago, J. Szilagyi, R. Qualls
School of Natural Resources: Faculty Publications
No abstract provided.
A Review Of Drought Monitoring Using Remote Sensing And Data Mining Methods, R. Inoubli, A.B. Abbes, I.R. Farah, V. Singh, T. Tadesse, A.Z. Abiy
A Review Of Drought Monitoring Using Remote Sensing And Data Mining Methods, R. Inoubli, A.B. Abbes, I.R. Farah, V. Singh, T. Tadesse, A.Z. Abiy
School of Natural Resources: Faculty Publications
No abstract provided.
Nc3 Nebraska Climate Summary, M. Shulski
Nc3 Nebraska Climate Summary, M. Shulski
School of Natural Resources: Faculty Publications
No abstract provided.
Multi-Dimensional Nature Of Drought In Abbay/Upper Blue Nile Basin And The Importance Of Regional Coordination Efforts For Mitigation, Y.A. Bayissa, S. Moges, A.M. Malesse, T. Tadesse, A.Z. Abiy
Multi-Dimensional Nature Of Drought In Abbay/Upper Blue Nile Basin And The Importance Of Regional Coordination Efforts For Mitigation, Y.A. Bayissa, S. Moges, A.M. Malesse, T. Tadesse, A.Z. Abiy
School of Natural Resources: Faculty Publications
No abstract provided.
Genetic And Evolutionary Considerations Of The Chronic Wasting Disease – Human Species Barrier, Robert M. Zink
Genetic And Evolutionary Considerations Of The Chronic Wasting Disease – Human Species Barrier, Robert M. Zink
School of Natural Resources: Faculty Publications
Transmissible spongiform encephalopathies can jump species barriers. In relatively few cases is the possible route of transmission thought to be known, mostly involving humans, cattle and sheep. It is thought that sheep might be the cause of Bovine Spongiform Encephalopathy (BSE) and Chronic Wasting Disease (CWD) in cervids, and that humans might have gotten prion disease (e.g., vCJD) from eating meat from BSE+ cows. A looming societal question is whether humans will acquire a prion disease from ingesting prions from CWD+ deer. On an evolutionary tree of the PRNP gene in mammals, deer, sheep and cow are relatively closely related, …
Geographic Distribution Of Chronic Wasting Disease Resistant Alleles In Nebraska, With Comments On The Evolution Of Resistance, H. Vazquez-Miranda, R. M. Zink
Geographic Distribution Of Chronic Wasting Disease Resistant Alleles In Nebraska, With Comments On The Evolution Of Resistance, H. Vazquez-Miranda, R. M. Zink
School of Natural Resources: Faculty Publications
No abstract provided.
Beyond Inventories: Emergence Of A New Era In Rangeland Monitoring, Matthew O. Jones, David E. Naugle, Dirac Twidwell, Daniel R. Uden, Jeremy D. Maestas, Brady W. Allred
Beyond Inventories: Emergence Of A New Era In Rangeland Monitoring, Matthew O. Jones, David E. Naugle, Dirac Twidwell, Daniel R. Uden, Jeremy D. Maestas, Brady W. Allred
School of Natural Resources: Faculty Publications
In the absence of technology-driven monitoring platforms, US rangeland policies, management practices, and outcome assessments have been primarily informed by the extrapolation of local information from national-scale rangeland inventories. A persistent monitoring gap between plot-level inventories and the scale at which rangeland assessments are conducted has required decision makers to fill data gaps with statistical extrapolations or assumptions of homogeneity and equilibrium. This gap is now being bridged with spatially comprehensive, annual, rangeland monitoring data across all western US rangelands to as- sess vegetation conditions at a resolution appropriate to inform cross-scale assessments and decisions. In this paper, 20-yr trends …
Reservoir Characterization And Static Earth Model For Potential Co2 Storage In Upper Pennsylvanian Cyclothems, Nebraska, Usa, V.L. Smith, R.M. Joeckel
Reservoir Characterization And Static Earth Model For Potential Co2 Storage In Upper Pennsylvanian Cyclothems, Nebraska, Usa, V.L. Smith, R.M. Joeckel
School of Natural Resources: Faculty Publications
No abstract provided.
Can Hydraulic Conductivity Of Fluvial Sediments Be Informed By Spectral Reflectance?, Li Yao Li, Can Liu, Gengxin Ou, Zhaowei Wang, Jesse Korus, Ran Jiang
Can Hydraulic Conductivity Of Fluvial Sediments Be Informed By Spectral Reflectance?, Li Yao Li, Can Liu, Gengxin Ou, Zhaowei Wang, Jesse Korus, Ran Jiang
School of Natural Resources: Faculty Publications
No abstract provided.
Field Conditions And The Accuracy Of Visually Determined Munsell Soil Color, J. Turk, R. Young
Field Conditions And The Accuracy Of Visually Determined Munsell Soil Color, J. Turk, R. Young
School of Natural Resources: Faculty Publications
No abstract provided.
Current Frameworks For Reference Et And Crop Coefficient Calculation, R G. Allen, Ayse Kilic, Clarence W. Robison
Current Frameworks For Reference Et And Crop Coefficient Calculation, R G. Allen, Ayse Kilic, Clarence W. Robison
School of Natural Resources: Faculty Publications
Estimation of evapotranspiration is under continual development and evolution, with significant developments and standardizations made during the past three decades for both reference ET (ETref) and for crop coefficients (Kc). These standardizations provide consistency and reproducibility in estimating ETref and a consistent basis for determining and expressing Kc curves, especially at the local scale. The application of the dual Kc procedure is growing, and has strong potential for improving accuracy of ET estimates as compared to the single Kc approach. This article describes current structures for estimating crop coefficients including the standardized FAO-56 dual Kc approach, with example applications. Emphasis …
Applying The Fao-56 Dual KC Method For Irrigation Water Requirements Over Large Areas Of The Western U.S., Richard Allen, Clarence W. Robison, Justin Huntington, James L. Wright, Ayse Kilic
Applying The Fao-56 Dual KC Method For Irrigation Water Requirements Over Large Areas Of The Western U.S., Richard Allen, Clarence W. Robison, Justin Huntington, James L. Wright, Ayse Kilic
School of Natural Resources: Faculty Publications
The FAO-56 dual crop coefficient procedure was used to determine evapotranspiration (ET) and net irrigation water requirements for all agricultural areas of the states of Idaho and Nevada and in a western U.S. study on effects of climate change on future irrigation water requirements. The products of the applications are for use by state governments for water rights management, irrigation system planning and design, wastewater application system design and review, hydrologic water balances, and groundwater modeling. The products have been used by the U.S. federal government for assessing impacts of current and future climate change on irrigation water demands. The …
A Review Of Landscape Water Requirements Using A Multicomponent Landscape Coefficient, R G. Allen, M. D. Dukes, R. L. Snyder, R. Kjelgren, Ayse Kilic
A Review Of Landscape Water Requirements Using A Multicomponent Landscape Coefficient, R G. Allen, M. D. Dukes, R. L. Snyder, R. Kjelgren, Ayse Kilic
School of Natural Resources: Faculty Publications
Water requirements of landscapes are highly variable due to the heterogeneous natures of landscapes, vegetation types, influence of buildings, and nutrient and water management. Objectives for water management of landscapes are for general appearance and health rather than for maximum biomass production. A multi-component method developed for the Irrigation Association (IA) and extended from the California WUCOLS procedure is demonstrated in which the landscape coefficient (KL, equivalent to a crop coefficient) is broken down into four components: vegetation type, vegetation density, microclimate, and managed stress. Each of these components can be estimated using readily made descriptions of a landscaped area …
Global Production And Free Access To Landsat-Scale Evapotranspiration With Eeflux And Eemetric, Ayse Kilic, R G. Allen, Philip A. Blankenau, Peter Revelle, Doruk Ozturk, Justin L. Huntington
Global Production And Free Access To Landsat-Scale Evapotranspiration With Eeflux And Eemetric, Ayse Kilic, R G. Allen, Philip A. Blankenau, Peter Revelle, Doruk Ozturk, Justin L. Huntington
School of Natural Resources: Faculty Publications
EEFlux (Earth Engine Evapotranspiration Flux) is a version of the METRIC (mapping evapotranspiration at high resolution with internal calibration) application that operates on the Google Earth Engine (EE). EEFlux has a web-based interface and provides free public access to transform Landsat images into 30 m spatial evapotranspiration (ET) data for terrestrial land areas around the globe. EE holds the entire Landsat archive to power EEFlux along with NLDAS/CFSV2 gridded weather data for estimating reference ET. EEFlux is a part of the upcoming OpenET platform (https://openetdata.org/ ) that has leveraged nonprofit funding to provide ET information to all of the lower …
Metric-Gis: An Advanced Energy Balance Model For Computing Crop Evapotranspiration In A Gis Environment, J. M. Ramírez-Cuesta, R G. Allen, D. S. Intrigliolo, Ayse Kilic, Clarence W. Robison, Ricardo Trezza, C. Santos, I. J. Lorite
Metric-Gis: An Advanced Energy Balance Model For Computing Crop Evapotranspiration In A Gis Environment, J. M. Ramírez-Cuesta, R G. Allen, D. S. Intrigliolo, Ayse Kilic, Clarence W. Robison, Ricardo Trezza, C. Santos, I. J. Lorite
School of Natural Resources: Faculty Publications
A novel ArcGIS toolbox that applies the Mapping Evapotranspiration with Internalized Calibration model was developed and tested in a semi-arid environment. The tool, named METRIC-GIS, facilitates the pre-processing operations and the automatic identification of potential calibration and pixels review. The energy balance components obtained from METRIC-GIS were contrasted with those from the original METRIC version (R2 = 1; RMSE = 0 W m–2 or mm day–1 for ETc) Additionally, an irrigated scheme located at southern Spain was considered for assessing Kc variability in the maize fields with METRIC-GIS. The identified spatial variability was mainly due …
A Review Of Vegetation Phenological Metrics Extraction Using Time-Series, Multispectral Satellite Data, Linglin Zeng, Brian D. Wardlow, Daxiang Xiang, Shun Hu, Deren Li
A Review Of Vegetation Phenological Metrics Extraction Using Time-Series, Multispectral Satellite Data, Linglin Zeng, Brian D. Wardlow, Daxiang Xiang, Shun Hu, Deren Li
School of Natural Resources: Faculty Publications
Vegetation dynamics and phenology play an important role in inter-annual vegetation changes in terrestrial ecosystems and are key indicators of climate-vegetation interactions, land use/land cover changes, and variation in year-to-year vegetation productivity. Satellite remote sensing data have been widely used for vegetation phenology monitoring over large geographic domains using various types of observations and methods over the past several decades. The goal of this paper is to present a detailed review of existing methods for phenology detection and emerging new techniques based on the analysis of time-series, multispectral remote sensing imagery. This paper summarizes the objective and applications of detecting …
Clinical And Pharmaceutical Applications Of Affinity Ligands In Capillary Electrophoresis: A Review, Chenhua Zhang, Ashley G. Woolfork, Kyungah Suh, Susan Ovbude, Cong Bi, Marawan Elzoeiry, David S. Hage
Clinical And Pharmaceutical Applications Of Affinity Ligands In Capillary Electrophoresis: A Review, Chenhua Zhang, Ashley G. Woolfork, Kyungah Suh, Susan Ovbude, Cong Bi, Marawan Elzoeiry, David S. Hage
David Hage Publications
Affinity capillary electrophoresis (ACE) is a separation technique that combines a biologically-related binding agent with the separating power and efficiency of capillary electrophoresis. This review will examine several classes of binding agents that have been used in ACE and applications that have been described for the resulting methods in clinical or pharmaceutical analysis. Binding agents that will be considered are antibodies, aptamers, lectins, serum proteins, carbohydrates, and enzymes. This review will also describe the various formats in which each type of binding agent has been used in CE, including both homogeneous and heterogeneous methods. Specific areas of applications that will …
Effects Of Surface Heterogeneity Due To Drip Irrigation On Scintillometer Estimates Of Sensible, Latent Heat Fluxes And Evapotranspiration Over Vineyards, Hatim M. E. Geli, José González-Piqueras, Christopher M. U. Neale, Claudio Balbontín, Isidro Campos, Alfonso Calera
Effects Of Surface Heterogeneity Due To Drip Irrigation On Scintillometer Estimates Of Sensible, Latent Heat Fluxes And Evapotranspiration Over Vineyards, Hatim M. E. Geli, José González-Piqueras, Christopher M. U. Neale, Claudio Balbontín, Isidro Campos, Alfonso Calera
Daugherty Water for Food Global Institute: Faculty Publications
Accurate estimates of sensible (H) and latent (LE) heat fluxes and actual evapotranspiration (ET) are required for monitoring vegetation growth and improved agricultural water management. A large aperture scintillometer (LAS) was used to provide these estimates with the objective of quantifying the effects of surface heterogeneity due to soil moisture and vegetation growth variability. The study was conducted over drip-irrigated vineyards located in a semi-arid region in Albacete, Spain during summer 2007. Surface heterogeneity was characterized by integrating eddy covariance (EC) observations of H, LE and ET; land surface temperature (LST) and normalized difference vegetation index (NDVI) data from Landsat …
Assessment Of An Automated Calibration Of The Sebal Algorithm To Estimate Dry-Season Surface-Energy Partitioning In A Forest–Savanna Transition In Brazil, Leonardo Laipelt, Anderson Luis Ruhoff, Ayan Santos Fleischmann, Rafael Henrique Bloedow Kayser, Elisa De Mello Kich, Humberto Ribeiro Da Rocha, Christopher Michael Usher Neale
Assessment Of An Automated Calibration Of The Sebal Algorithm To Estimate Dry-Season Surface-Energy Partitioning In A Forest–Savanna Transition In Brazil, Leonardo Laipelt, Anderson Luis Ruhoff, Ayan Santos Fleischmann, Rafael Henrique Bloedow Kayser, Elisa De Mello Kich, Humberto Ribeiro Da Rocha, Christopher Michael Usher Neale
Daugherty Water for Food Global Institute: Faculty Publications
Evapotranspiration (ET) provides a strong connection between surface energy and hydrological cycles. Advancements in remote sensing techniques have increased our understanding of energy and terrestrial water balances as well as the interaction between surface and atmosphere over large areas. In this study, we computed surface energy fluxes using the Surface Energy Balance Algorithm for Land (SEBAL) algorithm and a simplified adaptation of the CIMEC (Calibration using Inverse Modeling at Extreme Conditions) process for automated endmember selection. Our main purpose was to assess and compare the accuracy of the automated calibration of the SEBAL algorithm using two different sources of meteorological …
Treenuts And Groundnuts In The Eat-Lancet Reference Diet: Concerns Regarding Sustainable Water Use, Davy Vanhama, Mesfin Mekonnen, Arjen Y. Hoekstra
Treenuts And Groundnuts In The Eat-Lancet Reference Diet: Concerns Regarding Sustainable Water Use, Davy Vanhama, Mesfin Mekonnen, Arjen Y. Hoekstra
Daugherty Water for Food Global Institute: Faculty Publications
The EAT-Lancet universal healthy reference diet recommends an increase in the consumption of healthy foods, among which treenuts and groundnuts. Both are, however, water-intensive products, with a large water footprint (WF) per unit of mass and protein and already today contribute to blue water stress in different parts of the world. The envisaged massive required increase in nut production to feed a global population with this reference diet, needs to occur in a water-sustainable way. In this paper, we identify and quantify where current nut production contributes to local blue water stress and discuss options for water-sustainable nut production. We …
Attosecond Electron Bunch Measurement With Coherent Nonlinear Thomson Scattering, Colton Fruhling, Gregory V. Golovin, Donald Umstadter
Attosecond Electron Bunch Measurement With Coherent Nonlinear Thomson Scattering, Colton Fruhling, Gregory V. Golovin, Donald Umstadter
Donald Umstadter Publications
We present a novel method for measurement of ultrashort electron-bunch duration, in principle, as short as zeptosecond (10−21 s). The method employs nonlinear Thomson scattering of relativistically intense laser light, and takes advantage of the nonlinear dependence and coherence of scattered light on electron bunch length. We validate the method and test its range of applicability via simulations by using realistic (nonideal) electron beams. Due to the wide flexibility in choice of interaction geometry and scattering laser pulse properties enabled by the method, it is shown to be applicable over a wide range of electron beam parameters, including energy, …
Effects Of Strain And Film Thickness On Rhombohedral Phase Stability Of Hfo2, Y. Zhang, Q. Yang, L. L. Tao, Y. Zhou, E. Y. Tsymbal, And V. Alexandrov
Effects Of Strain And Film Thickness On Rhombohedral Phase Stability Of Hfo2, Y. Zhang, Q. Yang, L. L. Tao, Y. Zhou, E. Y. Tsymbal, And V. Alexandrov
Evgeny Tsymbal Publications
No abstract provided.
Valley-Spin Logic Gates, L. L. Tao, A. Naeemi, And E. Y. Tsymbal
Valley-Spin Logic Gates, L. L. Tao, A. Naeemi, And E. Y. Tsymbal
Evgeny Tsymbal Publications
No abstract provided.
Evaluating Thermoelectric Properties Of Batis3 By Density Functional Theory, T. R. Paudel And E. Y. Tsymbal
Evaluating Thermoelectric Properties Of Batis3 By Density Functional Theory, T. R. Paudel And E. Y. Tsymbal
Evgeny Tsymbal Publications
No abstract provided.