gebhart/patrepeval huggingface dataset:
Effect of Ferric Ions on the Corrosion Performance of Nickel Alloys in Hydrochloric Acid Solutions (2004)

Abstract The corrosion resistance and electrochemical behavior of two commercial nickel alloys, one a Nickel-Molybdenum alloy (N10675) and the other a Nickel-Chromium-Molybdenum (N06200) alloy were investigated in pure hydrochloric acid and HCl solutions containing different levels of ferric ions. Oxidizing ferric ions are commonly encountered in various chemical processes, and they markedly affect the corrosion behavior of the alloys, even at ppm levels. It was of interest to use electrochemical techniques to compare the anodic behavior of the alloys since the classic immersion tests do not yield sufficient knowledge regarding the effect of ferric ions on their corrosion behavior. Standard polarization resistance and potentiodynamic polarization test methods were used. The results clearly showed that the electrochemical behavior of the two alloys was drastically affected by the addition of ferric ions in the acidic solutions. The Ni-Mo and Ni-Cr-Mo alloys were resistant to general corrosion in pure HCl at ambient temperature; however in HCl solutions containing ferric ions, the Ni-Mo alloy showed poor corrosion resistance, while the Ni-Cr-Mo alloy exhibited excellent corrosion resistance when the level of ferric ions was higher than 250 ppm, because of passivation.
An Open Strategy for the Acquisition of Models and Simulations (2007)

This briefing discusses the acquisition of simulation itself. Estimates of DoD M&amp;S acquisition expenditures range from $9B to $15B annually. The brief recommends the adoption (or full consideration) of open source software (OSS) in DoD software acquisition and discusses the implications.
Ultra-thin spin coated crosslinkable hydrogels for use in cell sheet recovery—synthesis, characterisation to application (2012)

The advantages of detaching adherent cells from thermoresponsive platforms over conventional cell detachment protocols has been well documented. This study focuses on the development of an alternative method to produce thermoresponsive surfaces for cell and cell sheet regeneration to already established techniques which are complex and expensive and may be inaccessible to many laboratories. A photcrosslinkable poly-N-isopropylacrylamide (pNIPAm) copolymer was synthesised and thin films of the copolymer were deposited using the operationally simple spin coating technique which were subsequently crosslinked upon exposure to ultraviolet (UV) irradiation. Characterisation of hydrogel properties and behaviour was achieved using UV spectroscopy, atomic force microscopy (AFM), advancing contact angle, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR) and white light interferometry analyses. Results indicate that 3T3 fibroblast cells adhere and proliferate to confluence on hydrogels of <30 nm thickness similar to controls but cell attachment onto hydrogels of >30 nm was comparatively poor. Confluent cell sheets were harvested from the sub 30 nm ultra-thin hydrogels upon temperature reduction within 10 min. Spin coating allows for the facile control of film thickness via variation of the depositing polymer solution concentration and therefore the routine fabrication of ultra-thin hydrogels capable of hosting cells to confluence is easily achievable.
In Vivo Studies of Mutant Fibrillin-1 Microfibrils (2010)

In humans, mutations in fibrillin-1 result in a variety of genetic disorders with distinct clinical phenotypes. While most of the known mutations in fibrillin-1 cause Marfan syndrome, a number of other mutations lead to clinical features unrelated to Marfan syndrome. Pathogenesis of Marfan syndrome is currently thought to be driven by mechanisms due to haploinsufficiency of wild-type fibrillin-1. However, haploinsufficiency-driven mechanisms cannot explain the distinct phenotypes found in other fibrillinopathies. To test the hypothesis that mutations in fibrillin-1 cause disorders through primary effects on microfibril structure, two different mutations were generated in Fbn1 in mice. One mutation leads to a truncated fibrillin-1 molecule that is tagged with green fluorescent protein, allowing visualization of mutant fibrillin-1 incorporated into microfibrils. In heterozygosity, these mutant mice demonstrate progressive fragmentation of the aortic elastic lamellae and also display fragmentation of microfibrils in other tissues. Fibrillin-2 epitopes are also progressively revealed in these mice, suggesting that fibrillin-2 immunoreactivity can serve as a marker for microfibril degradation. In contrast, a second mutation (in-frame deletion of the first hybrid domain) in fibrillin-1 results in stable microfibrils, demonstrating that fibrillin-1 molecules are not required to be in perfect register for microfibril structure and function and that the first hybrid domain is dispensable for microfibril assembly. Taken together, these results suggest that perturbation of microfibril structure may underlie one of the major features of the Marfan syndrome: fragmentation of aortic elastic lamellae.
USDA-ARS National Sedimentation Laboratory: A Historic Perspective (2015)

Most authorities concede sediment from soil erosion to be the largest single stream pollutant. Physical damage from sediment includes reservoir storage loss, navigation channel filling, stream channel morphology alterations, ecological impacts, and clogging of drainage pathways. Ultimately, soil erosion is a very expensive problem. In the United States, accelerated soil erosion has been an ongoing issue since the establishment of the colonies. Through the initiative of great minds and the labor of countless individuals, the USDA was established and continues to fight for the people, providing assistance, guidance, and research. In this manuscript, the historical groundwork is laid for the establishment of the USDA-ARS National Sedimentation Laboratory (NSL) and a synopsis of NSL research is provided. This brief perspective of soil erosion research conducted on behalf of the people is but a small portion of the illustrious history of the USDA.
Detecting a Stochastic Background of Gravitational Radiation - Background Information (2002)

Bruce Allen, Warren Anderson, Sukanta Bose, Nelson Christensen, Ed Daw, Mario Diaz, Ronald Drever, Sam Finn, Peter Fritschel, Joe Giaime, Bill Hamilton, Siong Heng, Richard Ingley, Warren Johnson, Robert Johnston, Erik Katsavounidis, Sergei Klimenko, Michael Landry, Albert Lazzarini, Martin McHugh, Tom Nash, Adrian Ottewill, Patricia Perez, Tania Regimbau, Jamie Rollins, Joseph Romano, Bernard Schutz, Antony Searle, Peter Shawhan, Alicia Sintes, Charlie Torres, Carlo Ungarelli, Erick Vallarino, Alberto Vecchio, Rai Weiss, John Whelan, Bernard Whiting
A Multifunctional Light Switch: DNA Binding and Cleavage Properties of a Heterobimetallic Ruthenium–Rhenium Dipyridophenazine Complex (2007)

Ein DNA-Multifunktionswerkzeug: In photo- und biophysikalischen Studien erwies sich der abgebildete Heterozweikernkomplex [{Ru(tpm)(dppz)}(μ-dpp[5]){fac-(CO)3Re(dppz)}]3+ sowohl als DNA-„Lichtschalter“ als auch als direktes Spaltungsagens; tpm=Tris(1-pyrazolyl)methan; dppz=Dipyrido[3,2-a:2′,3′-c]phenazin; dpp[5]=4,4′-Dipyridylpentan.
A, B and H Blood Group Specificities in Glycoprotein andGlycolipid Fractions of Human Erythrocyte Membrane.Absence of Blood Group Active Glycoproteins in theMembranes of Non-Secretors (1971)

Blood group A-, B- and H-activities were studied in glycolipid and glycoprotein fractions of human erythrocyte stroma derived from secretors and nonsecretors. A- and B- but not H-specificities were detected in stroma glycolipids irrespective of the secretor status of blood donors. On the other hand A-, B- and H-specificities in glycoprotein fractions of stroma were present only in erythrocytes of secretors. Glycoprotein extracts of stroma of non-secretors did not contain A- and B-specificity.
RootLM: a simple color image analysis program for length measurement of primary roots in Arabidopsis (2007)

The Arabidopsis root is a model system for studying root growth, development, and response to environmental stresses. Due to its small size, many Arabidopsis seedlings can be cultured in a single nutrient-containing agar plate. Two of the common parameters used to evaluate root growth are the root length and the elongation rate. Various methods including manual measurement and digital image analysis can be used to measure the root length. In this paper, we report the development of a simple color image analysis program, RootLM, in combination with a modified marking technique of root growth on the surface of a Petri dish, for length measurement of primary roots. Our method provides an alternative tool to quickly generate accurate and reproducible root growth measurement with a minimum equipment requirement. In addition, the program is free for public download.
Artemisinin activity againstPlasmodium falciparumrequires hemoglobin uptake and digestion (2011)

Combination regimens that include artemisinin derivatives are recommended as first line antimalarials in most countries where malaria is endemic. However, the mechanism of action of artemisinin is not fully understood and the usefulness of this drug class is threatened by reports of decreased parasite sensitivity. We treated Plasmodium falciparum for periods of a few hours to mimic clinical exposure to the short half-life artemisinins. We found that drug treatment retards parasite growth and inhibits uptake of hemoglobin, even at sublethal concentrations. We show that potent artemisinin activity is dependent on hemoglobin digestion by the parasite. Inhibition of hemoglobinase activity with cysteine protease inhibitors, knockout of the cysteine protease falcipain-2 by gene deletion, or direct deprivation of host cell lysate, significantly decreases artemisinin sensitivity. Hemoglobin digestion is also required for artemisinin-induced exacerbation of oxidative stress in the parasite cytoplasm. Arrest of hemoglobin digestion by early stage parasites provides a mechanism for surviving short-term artemisinin exposure. These insights will help in the design of new drugs and new treatment strategies to circumvent drug resistance.
Fibonacci heaps and their uses in improved network optimization algorithms (1987)

In this paper we develop a new data structure for implementing heaps (priority queues). Our structure, Fibonacci heaps (abbreviated F-heaps ), extends the binomial queues proposed by Vuillemin and studied further by Brown. F-heaps support arbitrary deletion from an n -item heap in O (log n ) amortized time and all other standard heap operations in O (1) amortized time. Using F-heaps we are able to obtain improved running times for several network optimization algorithms. In particular, we obtain the following worst-case bounds, where n is the number of vertices and m the number of edges in the problem graph: O ( n log n + m ) for the single-source shortest path problem with nonnegative edge lengths, improved from O ( m log ( m/n +2) n ); O ( n 2 log n + nm ) for the all-pairs shortest path problem, improved from O ( nm log ( m/n +2) n ); O ( n 2 log n + nm ) for the assignment problem (weighted bipartite matching), improved from O ( nm log ( m/n +2) n ); O ( mβ ( m, n )) for the minimum spanning tree problem, improved from O ( m log log ( m/n +2) n ); where β ( m, n ) = min { i | log ( i ) n ≤ m/n }. Note that β ( m, n ) ≤ log * n if m ≥ n . Of these results, the improved bound for minimum spanning trees is the most striking, although all the results give asymptotic improvements for graphs of appropriate densities.
Overall Survival in Renal-Cell Carcinoma with Pazopanib versus Sunitinib (2014)

Survival results are now mature for a noninferiority trial comparing pazopanib with sunitinib in renal-cell carcinoma. Median survival was 42.5 months with pazopanib and 43.6 months with sunitinib, a difference that wasnot significant.
Outcomes of Total Hip Arthroplasty Are Similar for Patients with Displaced Femoral Neck Fractures and Osteoarthritis (2004)

This study attempted to evaluate whether total hip arthroplasty for displaced femoral neck fractures had significantly different outcomes when compared with total hip arthroplasty for osteoarthritis. This is a retrospective study of 60 patients who had total hip arthroplasties between 1997 and 2001. Thirty patients (mean age, 79.7 years) had total hip arthroplasties for displaced femoral neck fractures; 30 patients (mean age, 76.9 years) were treated with total hip arthroplasties for osteoarthritis. The same surgeon used the modified lateral approach for all surgeries. All patients had radiographic assessment, physical examination, and evaluation with the Harris hip score. The mean followup was 38 months. The mean Harris hip score for the 25 patients treated with a total hip arthroplasty for a femoral neck fracture was 81 points; the mean hip score for the 27 patients treated with a total hip arthroplasty for osteoarthritis was 87 points. No statistically significant differences between these groups were observed. Patients who were treated with a total hip arthroplasty for a femoral neck fracture did not have increased perioperative morbidity compared with patients who had a total hip arthroplasty for osteoarthritis. This study suggests that the outcomes for total hip arthroplasties in this consecutive series of patients treated for displaced femoral neck fractures and osteoarthritis are comparable.
ChemInform Abstract: Nitric Oxide Release. Part 3. Measurement and Reporting (2012)

Abstract Review: 64 refs.
MODULATION OF BRAIN SODIUM CHANNELS BY ASSOCIATED RECEPTOR PROTEIN TYROSINE PHOSPHATASE β (2000)

Conference Abstract| October 01 2000 MODULATION OF BRAIN SODIUM CHANNELS BY ASSOCIATED RECEPTOR PROTEIN TYROSINE PHOSPHATASE β Charlotte F. Ratcliffe; Charlotte F. Ratcliffe 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar Yusheng Qu; Yusheng Qu 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar Kimberly A. McCormick; Kimberly A. McCormick 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar Victoria C. Tibbs; Victoria C. Tibbs 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar Jack E. Dixon; Jack E. Dixon 2University of Michigan Medical School, Ann Arbor, Michigan 48109–0606, USA Search for other works by this author on: This Site PubMed Google Scholar Todd Scheuer; Todd Scheuer 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar William A. Catterall William A. Catterall 1University of Washington, Box 357280, Seattle, Washington 98195–7280, USA Search for other works by this author on: This Site PubMed Google Scholar Biochem Soc Trans (2000) 28 (5): A467. https://doi.org/10.1042/bst028a467b Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation Charlotte F. Ratcliffe, Yusheng Qu, Kimberly A. McCormick, Victoria C. Tibbs, Jack E. Dixon, Todd Scheuer, William A. Catterall; MODULATION OF BRAIN SODIUM CHANNELS BY ASSOCIATED RECEPTOR PROTEIN TYROSINE PHOSPHATASE β. Biochem Soc Trans 1 October 2000; 28 (5): A467. doi: https://doi.org/10.1042/bst028a467b Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Society Transactions Search Advanced Search This content is only available as a PDF. © 2000 Biochemical Society2000 Article PDF first page preview Close Modal You do not currently have access to this content.
Outside Front Cover: Plasma Process. Polym. 4/2023 (2023)

Outside Front Cover: Molecular dynamics simulations are carried out for inspecting neutral chemical reactions in an Ar/CH4 plasma. Mass spectra at temperature in the range 300–1000K are calculated. Detailed pathways leading to large CnHm molecule (n > 5) formation are obtained. Structure of linear and alicyclic/aromatic species is is identified and evolution against temperature is determined. Further details can be found in the article by Glenn O. Kandjani, Pascal Brault, Maxime Mikikian, Gautier Tetard, Armelle Michau, Khaled Hassouni (e2200192)
How Carbon Nanotube Crushing can Improve Flame Retardant Behaviour in Polymer Nanocomposites? (2007)

Abstract Nanocomposites based on an ethylene–vinyl acetate copolymer (27 wt.‐% vinyl acetate) and multiwall carbon nanotubes (MWNTs) have been prepared by melt blending and their thermal degradation and flame retardant properties have been evaluated. Special attention has been paid to the influence of the nanotube nature on the flammability properties and more particularly on the time to ignition (TTI) as measured by cone calorimetry. It has been shown that there is a strong influence of the nature of carbon nanotubes on the fire behaviour of the composites, especially previous MWNTs crushing proved to substantially delay the TTI while maintaining much reduced heat release rate (HRR). Such a remarkable behaviour might be explained by the chemical reactivity of radical species present at the surface/extremities of crushed MWNTs during the combustion process. magnified image
Modelling and synthesis of dense multipath propagation components in the angular domain (2009)

Abstract—It is acknowledged that the description of mobile radio channels that includes only Specular Components (SC) is insufficient. In order to overcome this, Dense Multipath Components (DMC) have to be taken into consideration. But a measurement backed model of the angular properties that would be needed for a comprehensive description of DMC is not yet available. The paper on hand will, therefore, examine the angular distribution of data obtained using channel-sounding measurements. Furthermore, it will present a simple model of this distribution, as well as methods for the estimation of its parameters. I.
19-Hydroxybaccatin III, 10-Deacetylcephalomannine, and 10-Deacetyltaxol: New Antitumor Taxanes From Taxus wallichiana (1981)

Activity-guided, chromatographic fractionation for a polar extract of Taxus wallichiana Zucc. (originally identified as Cephalotaxus mannii Hook.) resulted in the isolation of three new KB cytotoxic taxane derivatives. Nmr and ms spectral analyses permitted their characterization as 19-hydroxybaccatin III (3), 10-deacetylcephalomannine (4), and 10-deacetyltaxol (5). The latter two compounds, which are also active against PS leukemia in vivo, were observed to be especially labile, each forming equilibrium mixtures with their cytotoxic C-7 epimers (9, 10).
Sensitivity of mixing layers to three-dimensional forcing (1988)

It is well known that turbulent mixing layers are dominated by large scale, fairly coherent structures, and that these structures are related to the stability characteristics of the flow. These facts have led researchers to attempt controlling such flows by selectively forcing certain unstable modes, which can in addition have the effect of suppressing other modes. Much of the work on controlling the mixing layer has relied on forcing 2-D instabilities. The results of forcing 3-D instabilities are addressed. The objectives of the work are twofold: to understand how a mixing layer responds to 3-D perturbations, and to test the validity of an amplitude expansion in predicting the mixing layer development. The amplitude expansion could be very useful in understanding and predicting the 3-D response of the flow to a variety of initial conditions.
Evaluation of dynamic absorber to suppress subharmonic nonlinear vibration in car powertrain (2015)

This paper analyzed the suppression method of the nonlinear vibration called subharmonic vibration of order 1/2 in the car powertrain by using a dynamic absorber. In the car powertrain, the torsional forced vibration caused by engine explosions leads to inhibition of the ride quality. Thus, in the torque converter of an automatic transmission car, a piecewise-linear spring called damper is used to reduce the transmission of the forced vibration. However, the subharmonic vibration occurred in the actual vehicle, when the spring restoring characteristics is around the switching point. The fundamental vibration frequency of the subharmonic vibration is half to the engine forced vibration frequency. Although the design of the dynamic absorber to suppress the forced vibration has been established for the linear systems, the optimum design to suppress the subharmonic vibration of order 1/2 has not yet been investigated. The powertrain is modeled by multi degree-of-freedom system as an actual vehicle, including engine, torque converter, transmission gears and wheels. Equation of motion is developed with also considering spring restoring force of piecewise-linear spring. The numerical result shows subharmonic vibration occurs when the engine excitation frequency is almost twice of the second mode of natural frequency, and the result shows a good agreement with the experimental data. Then, the dynamic absorber is introduced to suppress the occurrence of subharmonic vibration theoretically. In this paper, the optimum design of the dynamic absorber to suppress the subharmonic vibration is discussed. The numerical result shows the optimally designed dynamic absorber in the natural frequency and the damping ratio is capable of suppressing the occurrence of the subharmonic vibration.
Fractionation of the Glucoamylase System from Black‐koji Mold and the Effects of Adding Isoamylase and Alpha‐amylase on Amylolysis by the Glucoamylase Fractions (1974)

Abstract The glucoamylase system of black koji mold was fractionated into four kinds of glucoamylase by using the corn starch adsorption technique supplement by DEAE‐cellulose column chromatography. One of these fractions, referred to as glucoamylase I, had a strong debranching activity and is highly active in raw starch digestion. The raw waxy corn starch digestion by glucoamylase I was accelerated by adding α‐amylase or isoamylase. The raw non‐waxy corn starch digestion by glucoamylase I was accelerated by α‐amylase but not so much by isoamylase as by α‐amylase. On the other hand, another fraction, referred to as glucoamylase II, had very weak debranching activity and was most feeble in the digestion of raw starch. The raw waxy corn starch digestion by glucoamylase II was very weak, but was accelerated extremely by adding isoamylase, but not by α‐amylase.
Identification of Aluminum Scale With the Aid of Synthetically Produced Basic Aluminum Fluoride Complexes (1993)

Summary Aluminum scaling can be a problem following HF acidizing. In this paper, a series of synthetic aluminum scales was prepared and identified. The aluminum compounds of a field scale were identified with similar procedures. Recent field work showed that the use of acetic acid in the HF acidizing sequences significantly decreased scaling. The role of acetic acid is discussed on the basis of laboratory support of these field data.