14 research outputs found
Historical irrigation water use and groundwater pumpage estimates in the Harney Basin, Oregon, 1991-2018: by Jordan Beamer, PhD, RG and Mellony Hoskinson
No full textCurrent and historical crop water use and groundwater pumpage estimates are needed for the Harney Basin in southeastern Oregon for a complete evaluation of the basin's groundwater budget. This will inform the overarching cooperative Oregon Water Resources Department (OWRD) and U.S. Geological Survey (USGS) study of the groundwater resource. This open file report describes the process used by OWRD to quantify crop water use from agricultural fields and associated groundwater pumpage in the Greater Harney Valley Area (GHVA) and presents findings of the analysis. Evapotranspiration (ET), consumptive use (CU; ET minus precipitation), and groundwater pumpage were estimated for 13 individual years spanning 1991 to 2018. The average annual growing season for irrigated areas was assumed to occur from May to September. ET of applied surface water and groundwater and groundwater pumpage for irrigation during 1991-2018 were estimated by coupling modeled field level ET estimates with available groundwater-pumpage data. Field-level ET was estimated using a remotely-sensed ET model - Mapping EvapoTranspiration at High Resolution with Internalized Calibration (METRIC) - scaled to ET measurements from an alfalfa field in the basin, GridMET precipitation data, and mapped agricultural fields. The source of water used to irrigate each field was obtained from OWRD water rights information. Estimated pumpage volumes associated with each ET estimates were determined using reported pumpage volumes from OWRD's Water Use Reporting database and literature-reported irrigation efficiencies. The METRIC estimated average growing season net ET (ET minus precipitation) for mapped irrigated fields over 1991 to 2018 was 1.51 feet per year (ft/yr) for fields irrigated with primarily groundwater, 1.49 ft/yr for fields irrigated with combined groundwater and surface water, and 1.43 ft/yr for fields irrigated with primarily surface water. In order to facilitate comparison of recharge and discharge volumes and evaluate groundwater development in the USGS groundwater study, the Harney Basin was separated into three analysis regions based on topography and groundwater movement. Current groundwater pumpage estimates for each region represent the mean-annual values of pumpage for the five year period of 2014 to 2018. The mean annual groundwater pumpage volume for each region is as follows: 76,000 acre-feet for the northern region, 20,000 acre-feet in the southern region, and 41,000 acre-feet in western region. The average total pumpage estimate for the GHVA area during 2014-2018 is estimated at 140,000 acre-feet per year from 67,400 groundwater irrigated acres, which represents an increase of 80,000-90,000 acre-feet since the early 1990s. Regional groundwater pumpage rates for fields irrigated with primary groundwater rights averaged 2.16 acre-feet per acre (ac-ft/ac), whereas rates for fields irrigated with supplementary groundwater rights averaged 1.24 ac-ft/ac.Introduction -- Previous work -- Objectives -- Study area -- Approach -- Data assimilation -- Weather data preparation -- Image preparation and land cover -- Measured evapotranspiration -- Estimation of evapotranspiration and crop water use -- Agricultural field boundary mapping and attributes -- Mapping EvapoTranspiration at High Resolution with Internalized Calibration (METRIC) model -- Estimation of groundwater pumpage -- Validation with pumpage datasets -- Water budget measurements, case example -- Pumpage from fields irrigated with groundwater and surface water -- Regional groundwater estimates -- Results -- Crop water use rates -- Crop water use volumes -- Groundwater pumpage volumes -- DiscussionTitle from PDF cover (viewed on August 9, 2022)This archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposesCovers OCLC #1264682351, OCLC #1340046984Includes bibliographical references (pages 48-51)Funding to support this project was provided by NASA Water Resources Applied Sciences Program Grant # NNX17AF53GFunding to support this project was provided bythe Oregon Watershed Enhancement Board Monitoring Grant # 219-5046-16766Mode of access: Internet from the Oregon Government Publications CollectionText in Englis
Effects of a bone inducing agent derived from a cultured human osteosarcoma cell line after orthotopic and heterotopic implantation in the dog
No full textBIA, a Bone Inducing Agent extracted from a cultured human osteosarcoma cell line (Saos–2), is highly osteoinductive in the skeletal muscle of athymic mice and promotes early osseous union of stabilized femoral non-unions in rats. To evaluate its effect in dogs, ten milligrams of BIA mixed with an equal amount of pure bovine collagen type I was compared with 20 mg of bovine collagen alone, a gelatin capsule alone, and fresh autogenous cancellous graft, after orthotopic and heterotopic implantation in Beagles.
For osteoinductive bioassays, each implant was placed in the latissimus dorsi muscle of five Beagles for six weeks. Bone formation was evaluated by thoracic radiographs every two weeks and by high detail radiographs and histology six weeks after implantation. To evaluate the effects of BIA after orthotopic implantation, four cortical defects were created in each left femur of four Beagles. One defect on each femur was randomly filled with BIA plus collagen, collagen alone, a gelatin capsule alone, or autogenous cancellous graft. Radiographic evaluation of the femurs was performed every two weeks for eight weeks. Healing of the defects was assessed with high detail radiographs, dual energy X-ray absorptiometry, histology and histomorphometry eight weeks after implantation.
Ten mg of BIA did not induce bone formation six weeks after heterotopic implantation and did not promote bone healing after orthotopic implantation in the dogs. The discrepancy between these results and those obtained in rodents may be related to immunogenic factors or to the dose of BIA used in this study.
BIA, a Bone Inducing Agent extracted from a cultured osteosarcoma cell line is highly osteoinductive in rodents. BIA was evaluated and compared with autogenous cancellous bone graft and bovine collagen after orthotopic and heterotopic implantation in Beagles. Each implant was placed in the latissimus dorsi muscle of five Beagles and in femoral cortical defects of four Beagles. Bone formation was evaluated by radiography, dual energy X-ray absorptiometry, histology and histo-morphometry. BIA did not induce bone formation after heterotopic implantation and did not promote bone healing after orthotopic implantation in dogs
Chromatography of dinitrophenylamino acids and heterocyclic bases on thin layers of protein
No full text
A Study of the Danville Public Schools Cable Television Project
No full textNo abstract provided by author
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The Single Pass Multi-component Harvester
No full textThe authors are solely responsible for the content of this technical presentation. The technical presentation does not necessarily reflect the official position of the American Society of Agricultural Engineers (ASAE), and its printing and distribution does not constitute an endorsement of views which may be expressed. Technical presentations are not subject to the formal peer review process by ASAE editorial committees; therefore, they are not to be presented as refereed publications. Citation of this work should state that it is from an ASAE meeting paper. EXAMPLE: Author's Last Name, Initials. 2004. Title of Presentation. ASAE Paper No. 04xxxx. St. Joseph, Mich.: ASAE. For information about securing permission to reprint or reproduce a technical presentation, please contact ASAE at [email protected] or 269-429-0300 (2950 Niles Road, St. Joseph, MI 49085-9659 USA). Abstract. In order to meet the U. S. government’s goal of supplementing the energy available from petroleum by increasing the production of energy from renewable resources, increased production of bioenergy has become one of the new goals of the United States government and our society. U.S. Executive Orders and new Federal Legislation have mandated changes in government procedures and caused reorganizations within the government to support these goals. The Biomass Research and Development Initiative is a multi-agency effort to coordinate and accelerate all U.S. Federal biobased products and bioenergy research and development. The Initiative is managed by the National Biomass Coordination Office, which is staffed by both the DOE and the USDA. One of the most readily available sources of biomass from which to produce bioenergy is an agricultural crop residue, of which straw from small grains is the most feasible residue with which to start. For the straw residue to be used its collection must be energy efficient and its removal must not impact the sustainability of the growing environment. In addition, its collection must be economically advantageous to the producer. To do all that, a single pass multi-component harvester system is most desirable. Results from our first prototype suggest that current combines probably do adequate threshing and that a separate chassis can be developed that does additional separation and that is economically feasible
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Elucidating symptoms of COVID-19 illness in the Arizona CoVHORT: A longitudinal cohort study
No full textObjective To elucidate the symptoms of laboratory-confirmed COVID-19 cases as compared with laboratory-confirmed negative individuals and to the untested general population among all participants who reported symptoms within a large prospective cohort study. Setting and design This work was conducted within the framework of the Arizona CoVHORT, a longitudinal prospective cohort study conducted among Arizona residents. Participants Eligible participants were any individual living in Arizona and were recruited from across Arizona via COVID-19 case investigations, participation in testing studies and a postcard mailing effort. Primary and secondary outcome measures The primary outcome measure was a comparison of the type and frequency of symptoms between COVID-19-positive cases, tested but negative individuals and the general untested population who reported experiencing symptoms consistent with COVID-19. Results Of the 1335 laboratory-confirmed COVID-19 cases, 180 (13.5%) reported having no symptoms. Of those that did report symptoms, the most commonly reported were fatigue (82.2%), headache (74.6%), aches, pains or sore muscles (66.3%), loss of taste or smell (62.8) and cough (61.9%). In adjusted logistic regression models, COVID-19-positive participants were more likely than negative participants to experience loss of taste and smell (OR 12.1; 95% CI 9.6 to 15.2), bone or nerve pain (OR 3.0; 95% CI 2.2 to 4.1), headache (OR 2.6; 95% CI 2.2 to 3.2), nausea (OR 2.4; 95% CI 1.9 to 3.1) or diarrhoea (OR 2.1; 95% CI 1.7 to 2.6). Fatigue (82.9) and headache (74.9) had the highest sensitivities among symptoms, while loss of taste or smell (87.2) and bone or nerve pain (92.9) had the high specificities among significant symptoms associated with COVID-19. Conclusion When comparing confirmed COVID-19 cases with either confirmed negative or untested participants, the pattern of symptoms that discriminates SARS-CoV-2 infection from those arising from other potential circulating pathogens may differ from general reports of symptoms among cases alone. © Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.Open access journalThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at [email protected]
