Trog Sink and its Hydrologic Effects on Head Waters of the East Blackburn Fork River

A hydrologic model was developed to predict runoff in an urban watershed in Cookeville, TN. In the research area there resides a massive sinkhole responsible for storing and transmitting storm water to the East Blackburn Fork River. The sinkhole is hypothesized to store excess rain water, and release it at a steady rate. Maintaining a higher baseflow discharge well after storms have passed over the watershed. A rain gauge and two stream gauges were deployed to record water level in the sinkhole and at a spring known to be its outlet. ArcGIS Pro software was used to calculate the watershed area and interpret the terrain of the watershed. The hydrologic model HEC-HMS (Army Corps of Engineers) was used to model runoff from a rain event that happened on December 5, 2020. Results showed a normal hydrograph with peak rainfall and a fairly quick return to baseflow estimated at hours compared to the time recorded in field data. Field data showed Trog sink retaining a large volume of water about 8.5ft in height at its maximum, and not allowing the spring to return to base flow for roughly thirteen days. Further research and modeling are hypothesized to display Trog sinks actual retention pattern in a hydrograph and become more synonymous with the field data during the rain events

Waring's number for large subgroups of double-struck Z_p

Let p be a prime, Z_p be the finite field in p elements, k be a positive integer, and A be the multiplicative subgroup of nonzero k-th powers in Z_p. The goal of this paper is to determine, for a given positive integer s, a value t_s such that if |A| ≫ t_s then every element of Z_p is a sum of s k-th powers. We obtain t_4 = p^{\frac{22}{39} + \in}, t_5 = p^{\frac{15}{29} + \in} and for s s ≥ 6, t_s = p^{\frac{9s+45}{29s+33} + \in}. For s ≥ 24 further improvements are made, such as t_32 = p^{\frac{5}{16} + \in} and t_128 = p^{\frac{1}{4}}

Feedstock blending as a strategy for hydrothermal liquefaction: lipid-rich scum from primary sedimentation and wastewater sludge

One salient advantage of hydrothermal liquefaction (HTL) is the ability to process diverse feedstocks individually or as blends. This creates an opportunity for using wet organic waste feedstocks that in many cases pose a disposal liability. The low cost associated with the feedstock enables cost-effective deployment of smaller, decentralized processing plants that match the geographic availability of wet waste resources. Two underutilized sources of wet waste biomass are wastewater sludge and fats, oils, and greases (FOG). In the United States, these each represent about 20% of the total HTL biocrude production potential from wet wastes. In this study, the selected FOG stream is decanted scum from the primary sedimentation operation of the same wastewater treatment plant (WWTP) that provided the sludge. Among the types of FOG, wastewater scum is one of the more complex and challenging. Scum contains entrained water, plant matter like leaves and seeds, and bits of garbage (paper and plastic). For most other processes to access the lipids in scum, some combination of heating, filtering, and solvent extraction would be required, leading to costly and/or inefficient recovery. HTL is preferable because it is a wet process and the scum can be blended directly to capture the whole energy content in the blended feed. Using a blend of primary and secondary sludge from Central Contra Costa Sanitary District (CCCSD) and decanted scum from CCCSD primary sedimentation as the source of FOG, a blend of sludge and scum was successfully prepared and processed in a bench scale continuous flow HTL system. A total of 54 L of blended slurry was converted to 4.2 L of biocrude oil. The scum was blended with the sludge such that it represented 20 wt% of the total dry, ash-free (daf) solids in the feed. The resulting biocrude had a much lower density (0.95 g/cm3) than the biocrude from CCCSD sludge alone (0.99 g/cm3) leading to improved gravity separation from the aqueous phase. The biocrude was also lower in moisture. During the oral presentation, the focus will be on the process of feedstock selection, evaluation, and characteristics including detailed steps and equipment used to format the blended feedstock for use in the HTL reactor system. The poster will include data for the integrated process including mass balance, yields, and characterization of products

The Grizzly, April 21, 1989

Spring Weekend a Whopper! • Ours Nouveau • Sunday\u27s Reception Huge Success • Letter: Shed Miniskirts for Spandex • Heritage Day • Berman Roofing Top Hat Affair • \u27Packers Hike Hick Hills • Ground Round: Super Service • Running\u27s More Than Just Winning • Spring Sports: Hot and Cold • Mr. Ursinus a Whomping Good Time!https://digitalcommons.ursinus.edu/grizzlynews/1236/thumbnail.jp

Microarray analysis of the in vivo sequence preferences of a minor groove binding drug

<p>Abstract</p> <p>Background</p> <p>Minor groove binding drugs (MGBDs) interact with DNA in a sequence-specific manner and can cause changes in gene expression at the level of transcription. They serve as valuable models for protein interactions with DNA and form an important class of antitumor, antiviral, antitrypanosomal and antibacterial drugs. There is a need to extend knowledge of the sequence requirements for MGBDs from <it>in vitro </it>DNA binding studies to living cells.</p> <p>Results</p> <p>Here we describe the use of microarray analysis to discover yeast genes that are affected by treatment with the MGBD berenil, thereby allowing the investigation of its sequence requirements for binding <it>in vivo</it>. A novel approach to sequence analysis allowed us to address hypotheses about genes that were directly or indirectly affected by drug binding. The results show that the sequence features of A/T richness and heteropolymeric character discovered by <it>in vitro </it>berenil binding studies are found upstream of genes hypothesized to be directly affected by berenil but not upstream of those hypothesized to be indirectly affected or those shown to be unaffected.</p> <p>Conclusion</p> <p>The data support the conclusion that effects of berenil on gene expression in yeast cells can be explained by sequence patterns discovered by <it>in vitro </it>binding experiments. The results shed light on the sequence and structural rules by which berenil binds to DNA and affects the transcriptional regulation of genes and contribute generally to the development of MGBDs as tools for basic and applied research.</p

Structural, item, and test generalizability of the psychopathology checklist - revised to offenders with intellectual disabilities

The Psychopathy Checklist–Revised (PCL-R) is the most widely used measure of psychopathy in forensic clinical practice, but the generalizability of the measure to offenders with intellectual disabilities (ID) has not been clearly established. This study examined the structural equivalence and scalar equivalence of the PCL-R in a sample of 185 male offenders with ID in forensic mental health settings, as compared with a sample of 1,212 male prisoners without ID. Three models of the PCL-R’s factor structure were evaluated with confirmatory factor analysis. The 3-factor hierarchical model of psychopathy was found to be a good fit to the ID PCL-R data, whereas neither the 4-factor model nor the traditional 2-factor model fitted. There were no cross-group differences in the factor structure, providing evidence of structural equivalence. However, item response theory analyses indicated metric differences in the ratings of psychopathy symptoms between the ID group and the comparison prisoner group. This finding has potential implications for the interpretation of PCL-R scores obtained with people with ID in forensic psychiatric settings

Circulating 250HD, dietary vitamin D, PTH, and calcium associations with incident cardiovascular disease and mortality: The MIDSPAN Family Study

&lt;p&gt;Context: Observational studies relating circulating 25-hydroxyvitamin D (25OHD) and dietary vitamin D intake to cardiovascular disease (CVD) have reported conflicting results.&lt;/p&gt; &lt;p&gt;Objective: Our objective was to investigate the association of 25OHD, dietary vitamin D, PTH, and adjusted calcium with CVD and mortality in a Scottish cohort.&lt;/p&gt; &lt;p&gt;Design and Setting: TheMIDSPAN Family Study is a prospective study of 1040 men and 1298 women from the West of Scotland recruited in 1996 and followed up for a median 14.4 yr. Participants: Locally resident adult offspring of a general population cohort were recruited from 1972–1976.&lt;/p&gt; &lt;p&gt;Main Outcome Measures: CVD events (n &#61; 416) and all-cause mortality (n&#61;100) were evaluated.&lt;/p&gt; &lt;p&gt;Results: 25OHD was measured using liquid chromatography-tandem mass spectrometry in available plasma (n&#61;2081). Median plasma 25OHD was 18.6 ng/ml, and median vitamin D intake was 3.2 &#181; g/d (128 IU/d). Vitamin D deficiency (25OHD&#60;15 ng/ml) was present in 689 participants (33.1%). There was no evidence that dietary vitamin D intake, PTH, or adjusted calcium were associated with CVD events or with mortality. Vitamin D deficiency was not associated with CVD (fully adjusted hazard ratio&#61;1.00; 95% confidence interval&#61;0.77–1.31). Results were similar after excluding patients who reported an activity-limiting longstanding illness at baseline (18.8%) and those taking any vitamin supplements (21.7%). However, there was some evidence vitamin D deficiency was associated with all-cause mortality (fully adjusted hazard ratio&#61;2.02; 95% confidence interval&#61;1.17–3.51).&lt;/p&gt; &lt;p&gt;Conclusion: Vitamin D deficiency was not associated with risk of CVD in this cohort with very low 25OHD. Future trials of vitamin D supplementation in middle-aged cohorts should be powered to detect differences inmortality outcomes as well as CVD.(J Clin EndocrinolMetab97: 0000 –0000, 2012)&lt;/p&gt

Sonoluminescing air bubbles rectify argon

The dynamics of single bubble sonoluminescence (SBSL) strongly depends on the percentage of inert gas within the bubble. We propose a theory for this dependence, based on a combination of principles from sonochemistry and hydrodynamic stability. The nitrogen and oxygen dissociation and subsequent reaction to water soluble gases implies that strongly forced air bubbles eventually consist of pure argon. Thus it is the partial argon (or any other inert gas) pressure which is relevant for stability. The theory provides quantitative explanations for many aspects of SBSL.Comment: 4 page

The Grizzly, March 17, 1989

Pledging Violations Abound: Change Imminent • Approaching Commencement Scares Seniors • Letters: Bermans Ship Garbage Here?; Alumni Concerned About Curtis Fire; Bond Facts Straight?; Collegeville Water Now Non-Toxic; Visser Vicous to Hocsters • CAB Earns Kudos • Bears Look to Bright Furture • Lady Bears Always A Bridesmaid • Track Stars Shine! • Easton\u27s Colonial Genuine Italian • Blues: A+ • Guess Who\u27s Coming for Dinner? • Senior Matters Leave Their Mark • Peruvian Junglehttps://digitalcommons.ursinus.edu/grizzlynews/1232/thumbnail.jp

The Grizzly, January 27, 1989

Constructium Ursini • Ad Hoc Hoists Honor • New GPA: 2.25 or Dive! • Letter: Green Shirt Makes Reed Red • Fair Not Just for Freshmen • Security Shacks in Reimert • Beverly Oehlert Named to Pottstown Board of Directors • Final Red and Gold Day • Hoopsters Stunning in Second • Lady Bears Go For Title • U.C. Hockey Bids Boyd Bon Voyage • A \u27bears Recover from Fla. • Dryfoos, Knauer Newest Dirs. • Bailey Bandies With Bush • Grim Gripes: Wismer Hard to Swallow • Quintet Jazzes Up First Forum • Greenstein to Performhttps://digitalcommons.ursinus.edu/grizzlynews/1226/thumbnail.jp