271 research outputs found
Quantifying the major sinks and sources of phosphorus in Tabor Lake: implications for management and remediation
No full textA study of Tabor Lake and its watershed during the open water season of 1995 was conducted in order to quantify the major sinks and sources of phosphorus, and the timing of phosphorus transfer between these sources and sinks. The results of this thesis are useful to help determine appropriate management strategies aimed at reducing phosphorus availability in Tabor Lake's water column and understanding some of the processes that control phosphorus availability in the lake. An exploratory modeling exercise was undertaken to evaluate morphometric and watershed variables in predicting spring phosphorus for 39 lakes in the region, including Tabor Lake. Two multiple linear regression models were constructed. The first model uses a stepwise technique to select statistically significant variables, and the second model uses variables found in the literature which have been shown to influence phosphorus loading. These two models account for 70% and 59% of the variation in spring phosphorus, respectively, and may provide managers with an expected phosphorus loading based on easily measured morphometric and watershed variables. The models predict that Tabor Lake should have a spring phosphorus concentration of 20 and 18 ug/L, respectively. The models are useful to establish the limits of water quality improvement for Tabor Lake. Another model was developed to estimate the quantity and timing of external sinks and sources of phosphorus in Tabor Lake for 1995. Phosphorus loading into Tabor Lake was estimated from runoff (136 kg) and atmospheric deposition (60 kg). Phosphorus output from Tabor Lake through the outlet creek was estimated at 188 kg for the entire year. Based on this input-output model, there was a net gain of 8 kg phosphorus into Tabor Lake during 1995. These results indicate that external phosphorus inputs and output is approximately balanced. Results from a prior monitoring program indicate that Tabor Lake experienced internal loading of phosphorus during periods of hypolimnetic anoxia. However, phosphorus loading also occurred when oxygen was present in the hypolimnion, suggesting another phosphorus loading mechanism was active in Tabor Lake. A specific effort was made to evaluate the role of senescing macrophytes (primarily Elodea canadensis) as a source of this phosphorus during the 1995 sampling season. Two experiments were conducted, one invitro and the other in-situ, to estimate phosphorus leaching from senescing macrophytes. The first in-vitro experiment used weeds collected August 8, 1995 and show that 87% (S.E.= 6%) of the total plant phosphorus is leached from these macrophytes, whereas the second in-vitro experiment, using samples collected September 22, 1995, show that only 9% (S.E.= 1%) of the phosphorus is leached from macrophytes. The difference between the two leaching estimates is believed to be the result of overwintering development and expected starch accumulation in the September samples. The in-situ study provided the best prediction of phosphorus leaching from senescing macrophytes, estimating 1958 kg of phosphorus (S.E.= 867 kg) was released from senescing macrophytes in 1995. The results from both the input-output model and the internal loading estimates show that Tabor Lake is dominated by the internal cycling of nutrients beginning in June and continuing until September. Furthermore, it quantifies two important phosphorus sources and the timing of phosphorus delivery from these sources. The quantification and timing of phosphorus delivery in Tabor Lake is useful to managers establishing remediation strategies which try to reduce the total phosphorus present in the water column. This research also shows that mechanical harvesting of macrophytes removes more phosphorus from the lake than exits through the outlet and can be useful in reducing the total phosphorus available to internal loading cycles in Tabor Lake.The original print copy of this thesis may be available here: http://wizard.unbc.ca/record=b118088
Paul and Jesus: How the Apostle Transformed Christianity
No full textHistorians know almost nothing about the two decades following the crucifixion of Jesus when his followers regrouped and began to spread his message. During this time, the apostle Paul joined the movement and began to preach to the Gentiles. Using the oldest Christian documents that we have -- the letters of Paul -- as well as other early Christian sources, historian and scholar James Tabor reconstructs the origins of Christianity. Tabor reveals that the familiar figures of James, Peter, and Paul sometimes disagreed fiercely over everything from the meaning of Jesus\u27 message to the question of whether converts must first become Jews. The author shows how Paul separated himself from Peter and James to introduce his own version of Christianity, which would continue to develop independently of the message that Jesus, James, and Peter preached.https://digitalcommons.pepperdine.edu/alumni_books/1129/thumbnail.jp
Assessing Oregon's local news & information ecosystem 2022
No full textRegina Lawrence, Courtney Tabor, Michelle Nicolosi, and Andrew DeVigal.Title from PDF cover (viewed on November 2, 2022)."A 2022 Agora Journalism Center report."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 purposes.Includes bibliographical references.Mode of access: Internet from the Oregon Government Publications Collection.Text in English
Reflections on and Extensions of the Fuller and Tabor Theory of Rough Surface Adhesion
No full text© 2017, The Author(s). The classical Fuller and Tabor theory of rough surface adhesion is reviewed, and its limited applicability noted. New results using an extension of the JKR adhesion theory to include the effect of van der Waals adhesion forces are described. These show the influence of the Tabor parameter μ: moderate values of µ (µ<100) lead to increased forces during loading, and so are found to predict much lower hysteresis losses. A further extension is to replace the GW surface roughness model used by Fuller and Tabor by a model based on the Nayak model of a surface as a random field, as in the Bush, Gibson and Thomas (BGT) theory of non-adhesive contact. The results are qualitatively the same, and the differences may well be largely due to the necessary redefinition of the adhesion index using the rms profile curvature in place of the asperity radius of curvature used in the GW model
Byzantine Philosophy: Transfiguration of Man in the Tabor Light Doctrine of Gregory Palamas
No full textThe anthropological issues of philosophy of the late period Byzantium are under consideration in the article. The particular attention is paid to the substantiation of the Tabor Light conception of Gregory Palamas, a founder of Byzantine Hesychasm. Palamas' Uncreated Light (Tabor) doctrine is submitted concerning his teaching on God's energies and his understanding of the human being. The author shows the essential change of the Human being in connection with his perception of the Divine Light, i.e., the transfiguration of Man by the Light. Some provisions of Hesychasm connected with religious gnosis and the possibilities of the human mind in the knowledge of the Godhead are considered
Available data and code for the "Tropical mountain ice core 18O: A Goldilocks indicator for global temperature change" (Liu et al., 2023)
No full textThese are the shared data and code for the journal of the "Tropical mountain ice core 18O: A Goldilocks indicator for global temperature change" to be published by Science Advance.
The available code includes Python code for Fig. 2&3 (named "Fig*-code.py") in the main text of the "Tropical mountain ice core 18O: A Goldilocks indicator for global temperature change".
The available data includes original data for Fig.1-Fig.5 (named "Data_Fig*") and post-processed data for analysis in the manuscript "Tropical mountain ice core 18O: A Goldilocks indicator for global temperature change". The post-processed data includes iTRACE model data, HighRes model data, TES&IASI satellite data, PMIP3&4 data, and GNIP observation data.
We thank author Clay Tabor for providing HighRes model simulation data.
Contact information:
Author Yuntao Bao is responsible for data processing, analysis, calculation, and visualization.
Any questions regarding data analysis and coding, please contact Yuntao Bao through
[email protected]
A report from the Office of the University Economist
No full texttableOfContents: Summary -- Introduction -- Colorado's TABOR provisions -- Comparison of TABOR to other TELs -- Fiscal impacts -- Referendum C -- A TABOR-like limitation in Arizona -- Proposals -- Problems created by a TABOR-like approach -- Revenue implications of a TABOR-like rule -- Fiscal alternatives for Arizona -- Evaluation of governor's proposal -- Recommendations -- Reference
Fe-MOR and Fe-FER as catalysts for abatement of N2O with CH4: in situ UV-vis DRS and operando FTIR study
No full textThe catalytic reduction of N2O with CH4 in absence or in presence of O2 (CRN2O or SCRN2O) and H2O (hydrothermal conditions) was studied on Fe-MOR and Fe-FER catalysts with similar Al distribution and iron-loading. In N2O decomposition and SCRN2O Fe-FER catalysts were more active than Fe-MOR, whereas in CR N2O the catalysts exhibited similar activity. In situ FTIR and UV-vis spectroscopies of thermally activated catalysts revealed that Fe(II) species are better stabilized in FER than in MOR topology. In the presence of CH4, Fe(III)-oxo species were reduced to Fe(II) in both zeolites and became active sites for the CRN2O process. In SCRN2O the presence of O2 decreased the activity of Fe-MOR due to a partial re-oxidation of the active sites. The addition of H2O to the feed caused a poor and reversible deactivation. Operando FTIR experiments provided insights into the reaction pathways and suggested formaldehyde and formate surface species as intermediates
Leisure Activities for People with Disabilities in the Region of Tabor
No full textIn this bachelor paper I deal with free-time activities of people with disabilities in Tabor region. First, the description of characterization of physical disability is noted then the periodization of old age is described next the various opptions of different authors on free time are analyzed using quotations. Further, the survey of people with disabilities is presented. I mention their option on free time and what they consider the limits for spending free time. Moreover, the offer of free time activities in Tabor region is compared to expectations of the interviewed people and evaluated by the author. In this paper the satisfactions with spending free tiime of people with disabilities who live at home and of people with disabilities who live in institution is compared. In the final part the charts and graphs of the whole research are presented and are followed with my final evaluation
Iron Functionalized Nanoparticles of Titanium Dioxide
No full textDiploma thesis Iron Functionalized Nanoparticles of Titanium Dioxide Lenka Volfová 2017, ABSTRACT Iron-functionalized TiO2 were obtained by hydrolysis of aqueous solutions of titanyl sulfate with addition of ferric nitrate with ammonium hydroxide and the reaction filtered and washed with hydrogen peroxide. The colloid solutions thus prepared were lyophilized and the products were subsequently annealed at three different temperatures of 650 řC, 800 řC and 950 řC. The prepared doped materials were characterized by powder X-ray diffractometry, electron microscopy, infrared spectroscopy, Mössbauer spectroscopy, UV/VIS spectroscopy, thermogravimetric analysis and differential thermal analysis, and measurement of the specific surface area. Photocatalytic activity was determined by measuring of the decomposition of kinetics of 4-chlorophenol in an aqueous solution in the ultraviolet and visible area. For comparison of activity in the UV area and in the visible area were used a previously prepared highly photoactive specimen and standard TiO2 from Kronos, respectively. Keywords: Doped titanium dioxide, nanostructure, X-ray diffraction, electron microscopy, Mössbauer spectroscopy, suppression of photoactivit
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