631 research outputs found
Parallel Iterations for Cholesky and Rohn's Methods for Solving over Determined Linear Interval Systems
No full textAbstract: The aim is to present Krawczyk's iteration in the context of parallel Rohn's method and another parallel Interval Cholesky method to improve results for the solution of over determined linear interval system. We compare note with results obtained from using the Block Krawczyk iterative method introduced by Rump, and presented in details by Popova, which forms the basis of discussions. It is shown that parallel Rohn's method which is independent of interval data input gave narrowest interval width of the solution set to the over determined interval linear system followed by Interval Cholesky method while Block Krawczyk's method given in Popova, has the largest interval width
Data for Looking Under the Hood: How Research is Utilized in 2020 Presidential Postsecondary Education Campaign Platforms
No full textBeginning in January 2020, we tracked the front-running democratic presidential candidates’ (Biden, Sanders, Warren) campaign platforms related to higher education to examine how academic research is used to frame prospective postsecondary education policies in presidential elections in the United States. This is a multi-level dataset of the gray literature cited on Biden, Sanders, and Warren's 2020 presidential campaign websites’ postsecondary education subpages.
Level One of dataset: All sources cited by Biden, Sanders, and Warren's postsecondary education subpage on their campaign website. The metadata for each source included the URLs hyperlinked in the body of the text, sponsoring organization, the first and last names of the first six authors and whether the first author was affiliated with an institution of higher education at the time of publication.
Level Two of dataset: reference information for each Level One reference. Reference information included the Level Two reference’s sponsoring organization, its type and subtype, and the first and last name of the first author and whether the first author was affiliated with an institution of higher education at the time of publication
What to Measure and How to Measure - Otpical Sensing
No full textWhat to Measure and How to Measure - Otpical Sensin
Nonsingularity, positive definiteness, and positive invertibility under fixed-point data rounding
No full textsummary:For a real square matrix and an integer , let denote the matrix formed from by rounding off all its coefficients to decimal places. The main problem handled in this paper is the following: assuming that has some property, under what additional condition(s) can we be sure that the original matrix possesses the same property? Three properties are investigated: nonsingularity, positive definiteness, and positive invertibility. In all three cases it is shown that there exists a real number , computed solely from (not from ), such that the following alternative holds: if , then nonsingularity (positive definiteness, positive invertibility) of implies the same property for ; if and is nonsingular (positive definite, positive invertible), then there exists a matrix with which does not have the respective property. For nonsingularity and positive definiteness the formula for is the same and involves computation of the NP-hard norm ; for positive invertibility is given by an easily computable formula. 0178.57901 1013.81007 0635.58034 1022.81062 0372.43005 1058.81037 0986.81031 0521.33001 0865.65009 0847.65010 0945.68077 0780.93027 0628.65027 0712.65029 0709.65036 0796.65065 0964.6504
Health Hazard Evaluation Report: HETA 93-1092-2461: UNR-Rohn Manufacturing, Peoria, Illinois
No full textIn response to a confidential request, an investigation was begun into reports of headaches and nausea in workers in the galvanizing department at UNR-Rohn Manufacturing (SIC-3479), Peoria, Illinois. The facility manufactured solid member hot dip galvanized towers and did customized galvanizing work. The company employed 51 workers in the galvanizing department. Personal breathing zone samples for zinc (7440666), cadmium (7440439), chromium (7440473), ammonia (7664417) and aluminum (7429905) all were well below the allowable limit. Samples for lead (7439921) ranged from trace to 56.1 micrograms/cubic meter (microg/m3) of airthe OSHA permissible exposure limit (PEL) was 50microg/m3. Surface wipe samples were collected and found to contain zinc at a range of 5.3 to 331mg/m2, lead from nondetectable to 16.3mg/m2, chromium ranging from nondetectable to 4.6mg/m2, and nondetectable for cadmium. The author concludes that workers were potentially exposed to lead levels in excess of the PEL. The author recommends that surface metal contamination levels should be kept at a minimum in areas such as the break area and rest rooms. Cadmium concentrations should be kept to the lowest feasible limit. Exposure monitoring should be continued, and improvements made in worker personal hygiene, and workplace cleanliness
Brassica-enriched wheat bread: Unraveling the impact of ontogeny and breadmaking on bioactive secondary plant metabolites of pak choi and kale
No full textConsumption of Brassica vegetables is linked to health benefits, as they contain high concentrations of the following secondary plant metabolites (SPMs): glucosinolate breakdown products, carotenoids, chlorophylls, and phenolic compounds. Especially Brassica vegetables are consumed as microgreens (developed cotyledons). It was investigated how different ontogenetic stages (microgreens or leaves) of pak choi (Brassica rapa subsp. chinensis) and kale (Brassica oleracea var. sabellica) differ in their SPM concentration. The impact of breadmaking on SPMs in microgreens (7 days) and leaves (14 days) in pak choi and kale as a supplement in mixed wheat bread was assessed. In leaves, carotenoids, chlorophylls, and phenolic compounds were higher compared to those of microgreens. Breadmaking caused a decrease of SPMs. Chlorophyll degradation was observed, leading to pheophytin and pyropheophytin formation. In kale, sinapoylgentiobiose, a hydroxycinnamic acid derivative, concentration increased. Thus, leaves of Brassica species are suitable as natural ingredients for enhancing bioactive SPM concentrations in bread
Persistence of Infectious Canine Distemper Virus in Murine Xenotransplants of Canine Histiocytic Sarcoma Cells after Intratumoral Application
No full textOncolytic viruses and morbilliviruses in particular, represent an interesting therapeutic approach for tumors with a poor prognosis and frequent resistance to conventional therapies. Canine histiocytic sarcomas (HS) exemplify such a neoplasm in need for new curative approaches. Previous investigations demonstrated a limited success of an acute intratumoral application of canine distemper virus (CDV) on xenotransplanted canine histiocytic sarcoma cells (DH82 cells), while persistently CDV-infected DH82 cell transplants exhibited a complete spontaneous regression. Therefore, the present study focuses on an intratumoral application of persistently CDV vaccine strain Onderstepoort-infected DH82 (DH82 Ond p.i.) cells into non-infected subcutaneous DH82 cell transplants in a murine model. DH82 cell transplants that received 10 applications, two days apart, showed a transient growth retardation as well as larger areas of intratumoral necrosis, lower mitotic rates, and a decreased intratumoral vascularization compared to controls. Viral mRNA was detected in all neoplasms following application of DH82 Ond p.i. cells until 66 days after the last injection. Furthermore, infectious virus was present until 62 days after the last injection. Although complete regression was not achieved, the present application regimen provides promising results as a basis for further treatments, particularly with genetically modified viruses, to enhance the observed effects
Zinc Tolerance of Special Yeasts and Lactic Acid Bacteria for Use in the Food Industry
No full textIn order to address human zinc deficiency, fortifying staple foods with zinc is a safe and cost-effective solution. To ensure the nutritional properties and quality of a final product, zinc tolerance of the microorganisms involved in the fermentation is necessary. Bread, which is widely consumed, occupies a substantial place in many people’s diets, and is often based on a sourdough making process; thus, it might be an important headlining product. This study investigated the zinc tolerance of yeasts and lactic acid bacteria that are specifically suited to produce sourdough bread made with cricket powder hydrolysate and wheat flour. Amongst the yeasts, Kazachstania servazzii KAZ2 and Kazachstania unispora FM2 were only slightly affected in regard to cell growth and colony-forming ability when cultured in YPD broth spiked with 0.5 or 1 mM ZnSO4, respectively. Yarrowia lipolytica RO25 showed a higher tolerance for up to 2.5 mM zinc (ZnSO4). All the yeast strains were capable of accumulating zinc in the range between 200 and 400 fg/cell. The heterofermentative lactic acid bacterium Fructilactobacillus sanfranciscensis DG1 appeared to have a moderate zinc requirement and was homeostatically balanced, even under a high 20 mM extracellular ZnSO4 load. A better understanding of zinc homeostasis in yeast and lactic acid bacteria for food industry applications may lead to improvements in zinc fortification, which might contribute to diminishing Zn deficiencies, especially in vulnerable population groups
Frank John Traudt Letters, MSS.3002
No full textAbstract: One letter of recommendation from T. A. Chapman Company Dry Goods, Trandt's previous employer. Three letters from an attorney, Lynn S. Pease, regarding payments and the selling/buying of Rohn Swimming School. All letters are from Milwaukee, Wisconsin.Scope and Content Note: One letter of recommendation from T. A. Chapman Company Dry Goods, Trandt's previous employer. Three letters from an attorney, Lynn S. Pease, regarding payments and the selling/buying of Rohn Swimming School. All letters are from Milwaukee, Wisconsin.Biographical/Historical Note
Amaranth’s 2-Caffeoylisocitric Acid—An Anti-Inflammatory Caffeic Acid Derivative That Impairs NF-κB Signaling in LPS-Challenged RAW 264.7 Macrophages
No full textFor centuries, Amaranthus sp. were used as food, ornamentals, and medication. Molecular mechanisms, explaining the health beneficial properties of amaranth, are not yet understood, but have been attributed to secondary metabolites, such as phenolic compounds. One of the most abundant phenolic compounds in amaranth leaves is 2-caffeoylisocitric acid (C-IA) and regarding food occurrence, C-IA is exclusively found in various amaranth species. In the present study, the anti-inflammatory activity of C-IA, chlorogenic acid, and caffeic acid in LPS-challenged macrophages (RAW 264.7) has been investigated and cellular contents of the caffeic acid derivatives (CADs) were quantified in the cells and media. The CADs were quantified in the cell lysates in nanomolar concentrations, indicating a cellular uptake. Treatment of LPS-challenged RAW 264.7 cells with 10 µM of CADs counteracted the LPS effects and led to significantly lower mRNA and protein levels of inducible nitric oxide synthase, tumor necrosis factor alpha, and interleukin 6, by directly decreasing the translocation of the nuclear factor κB/Rel-like containing protein 65 into the nucleus. This work provides new insights into the molecular mechanisms that attribute to amaranth’s anti-inflammatory properties and highlights C-IA’s potential as a health-beneficial compound for future research
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