gebhart/patrepeval huggingface dataset:
ESCA applied to polymers. XVIII. RF glow discharge modification of polymers in helium, neon, argon, and krypton (1978)

Abstract The crosslinking of an ethylene–tetrafluoroethylene copolymer by exposure to a variety of inert gas plasmas, excited by an inductively coupled radiofrequency (RF) field, has been studied. The rates for direct and radiative energy‐transfer processes are determined within the framework of a kinetic model of the system and are shown to have a strong dependence on the sustaining gas, as do the average depths of penetration of the ions and metastable species. Helium is found to be the most efficient gas for the crosslinking of the outermost few monolayers whereas the crosslinking of the subsurface and bulk polymer is best effected by neon. Madelung charge potential calculations have been performed to simulate the experimentally determined x‐ray photoelectron spectroscopy (ESCA) spectra to elucidate several features of the mechanisms involved.
Circulatory Data in Normal Subjects at Rest and During Exercise in Recumbent Position, with Special Reference to the Stroke Volume at Different Work Intensities (1960)

Abstract Right heart catheterization has been performed in 18 healthy subjects, 14 males and 4 females, including estimation of cardio‐vascular pressures and cardiac output at rest and during different intensities of exercise in recumbent position. During exercise the cardiac output increased linearly with the oxygen uptake. The increase of the arterio‐venous oxygen difference in relation to the work load or the pulse rate was higher in the males than in the females. With change from rest to work the stroke volume increased slightly but significantly in the males. By increasing work load it successively decreased to the size at rest. There was a high correlation between the stroke volume on one hand and the work performed at pulse rate 170, the heart volume, and the blood volume on the other. The mean pressure in the pulmonary artery was 5 mm Hg higher during exercise than at rest but was constant at different work loads. The end‐diastolic pressure in the right ventricle and the mean pulmonary venous pressure (PC V‐pressure) did not change significantly with the increase in pulse rate.
Further evidence for polymer-supported membranes and a statement on synthetic scope and surface structure (1984)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFurther evidence for polymer-supported membranes and a statement on synthetic scope and surface structureSteven L. Regen, Zenon Foltynowicz, and Kazuo YamaguchiCite this: Macromolecules 1984, 17, 6, 1293–1294Publication Date (Print):June 1, 1984Publication History Published online1 May 2002Published inissue 1 June 1984https://pubs.acs.org/doi/10.1021/ma00136a033https://doi.org/10.1021/ma00136a033research-articleACS PublicationsRequest reuse permissionsArticle Views32Altmetric-Citations4LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Extralymphoid CD8 <sup>+</sup> T Cells Resident in Tissue from Simian Immunodeficiency Virus SIVmac239Δnef-Vaccinated Macaques Suppress SIVmac239 Replication <i>Ex Vivo</i> (2010)

Live-attenuated vaccination with simian immunodeficiency virus (SIV) SIVmac239Deltanef is the most successful vaccine product tested to date in macaques. However, the mechanisms that explain the efficacy of this vaccine remain largely unknown. We utilized an ex vivo viral suppression assay to assess the quality of the immune response in SIVmac239Deltanef-immunized animals. Using major histocompatibility complex-matched Mauritian cynomolgus macaques, we did not detect SIV-specific functional immune responses in the blood by gamma interferon (IFN-gamma) enzyme-linked immunospot assay at select time points; however, we found that lung CD8(+) T cells, unlike blood CD8(+) T cells, effectively suppress virus replication by up to 80%. These results suggest that SIVmac239Deltanef may be an effective vaccine because it elicits functional immunity at mucosal sites. Moreover, these results underscore the limitations of relying on immunological measurements from peripheral blood lymphocytes in studies of protective immunity to HIV/SIV.
Prediction of Fluid Flow and Heat Transfer Characteristics Behind a Single Backward-Facing Step (1992)

Numerical solutions based on standard finite volume method are presented for the study of heat transfer and fluid dynamic characteristics in turbulent flows behind a single sided backward-facing step. The calculation of the differential equations is performed using SIMPLE algorithm. For the turbulent quantities standard K-model is used. Predicted mean velocity profiles and reattachment lengths comply with the experimental data but significant deviation occurs in the predictions of turbulent intensities. The predicted heat transfer coefficient is in good agreement up to the reattachment point and downstream of that point it matches qualitatively.
Real-time vertical track deflection measurement system (2008)

Track quality is a major factor in railroad safety, and one accepted indicator of track quality is the vertical track deflection. Measuring track deflection from a moving railcar is difficult because there is no stable reference for the measurements. A system developed by researchers at the University of Nebraska to measure track deflection from a moving railcar in real-time is described in detail. The system consists of a loaded hopper with a camera/laser sensor system to detect the vertical deflection of the rail relative to the wheel/rail contact point. Modeling and simulation of the system is also presented along with the mathematical models which can be used to estimate track modulus. The measurement system has been used to conduct revenue service tests over three thousand miles of track. A special validation test was also performed. The results from these tests have shown that the system's measurement is repeatable and accurate; the system has notable ability to indicate track support problems.
Studies on the synthesis and anti-inflammatory activity of 2,6-di-tert-butylphenols with a heterocyclic group at the 4-position. V. Elimination reaction of the sulfinyl group of 2,3-dihydroimidazo(2,1-b)thiazole 1-oxide. (1984)

Reaction of 6-(3, 5-di-tert-butyl-4-hydroxyphenyl)-2, 3-dihydroimidazo [2, 1-b] thiazole 1-oxide (1) with superoxide anion gave 4-(3, 5-di-tert-butyl-4-hydroxyphenyl)-1-vinylimidazole (2). Compound 2 was also obtained by treatment of 1 with potassium tert-butoxide in dimethyl sulfoxide (DMSO) in the presence of oxygen, while 4-(3, 5-di-tert-butyl-4-hydroxyphenyl)-2-thioxo-1-vinyl-4-imidazoline (3) was obtained together with 2 in the absence of oxygen. When the same reaction was carried out in N, N-dimethyl formamide, 1 gave 2 and 3 in the absence of oxygen, and 4-(3, 5-di-tert-butyl-4-hydroxyphenyl)-1-vinylimidazole-2-sulfonic acid (4) in the presence of oxygen. A possible mechanistic explanation for the formation of these products is presented. Oxygenation of 6-phenyl-2, 3-dihydroimidazo [2, 1-b] thiazole 1-oxide (6) was also examined.
Shear Behavior of Headed Anchors with Large Diameters and Deep Embedments (2010)

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Recognition and separation of sulfate anions (2012)

This tutorial review focuses on some recent aspects in the development of synthetic receptors for selective sulfate anion recognition and separation, with a special emphasis to: (i) receptors for selective recognition of sulfate in organic and aqueous media and (ii) receptors for separation of sulfate from water via liquid-liquid extraction and crystallization.
New approach to flame spectrometric analysis utilizing isolated droplets of sample solution (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew approach to flame spectrometric analysis utilizing isolated droplets of sample solutionG. M. Hieftje and H. V. MalmstadtCite this: Anal. Chem. 1969, 41, 13, 1735–1744Publication Date (Print):November 1, 1969Publication History Published online1 May 2002Published inissue 1 November 1969https://pubs.acs.org/doi/10.1021/ac60282a022https://doi.org/10.1021/ac60282a022research-articleACS PublicationsRequest reuse permissionsArticle Views110Altmetric-Citations43LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Looking Forward (1991)

Lean, blue-jeaned, shaggy-haired, they saunter toward unmarked seats — folding chairs or backless risers. Here and there an issue of The Village Voice bristles out of a jacket pocket, but no one scans the headlines; Vietnam is bombed again, blacks are arrested again, drugs are discovered again. The light discourages reading, but it is adequate for locating seats near friends, with a view of the uncurtained playing area. The programme is a mimeographed list of credits on cheap coloured paper, easily crumpled to the floor. The same cement floor leads to the playing area, on which are arranged — or disarranged — vaguely oval shapes of diverse colours. Desultorily, one by one, actors in leotards approach the ovals, depositing objects behind them. Independently, each actor stretches, twists, gyrates, apparently oblivious of the audience that gradually spreads through the seats. When electronic music sounds faintly, the actors co-ordinate into an arc to perform movements of Tai Chi Chuan. After the closing ceremonial bow, the actors take makeshift costumes from behind the ovals — that’s what they were carrying — and put them on.
Computer Simulation Based Study of Photovoltaic Cells/Modules and their Experimental Verification (2013)

Abstract—A computer simulation based study of photovolatics cells / modules using circuit simulator PSpice is presented in this paper. The PSpice is an analogoue/digital circuit simulator which calculates voltage and current in a circuit under variety of different circumstances. This feature of PSpice is used to simulate a circuit based model for PV cells / modules and then to conduct behavioral study under varying conditions of solar insolation including shading effect, temperature, diode model parameters, series and shunt resistance etc. The study is very helpful in clearly outlining the principles and the intricacies of PV cells/modules and may surely be used to verify impact of different topologies and control techniques on the performance of different types of PV system. To put the simulation study on firm footing an experimental verification is also carried out in the Lab by developing a PC based data acquisition system, which is also briefly discussed here as subsidiary.
Plugging Thief Zones in Water Injection Wells (1967)

Abstract Standard Oil Co. of California is improving performance of its California water floods by improving vertical coverage and reducing water cycling. This program is being achieved by selectively plugging thief zones in water injection wells with a mixture of silicic acid gel and either gilsonite or silica flour. Previous field trials over a period of 10 years with many other materials and techniques had not achieved the desired results. This article discusses the theory and placement techniques of silicic acid gel and presents the results of successful plugging operations in unsegregated, multilayered reservoirs consisting of interbedded soft shales and unconsolidated sands. The operations have been successfully conducted in slotted liner completions, gravel-packed liner completions and cemented gun- or jet-perforated liner completions. The silicic acid gel is prepared in the field, and the entire operation can be conducted with a production hoist and cement truck. Results of this program show conclusively that silicic acid gel in conjunction with proper placement techniques can be utilized to effectively plug thief intervals in water injection wells. This is expected to become a major factor in improving waterflooding efficiency with a resultant decrease in operating costs and increase in net profit. Introduction The economic success of a waterflood in thick, multilayered sands is dependent upon the efficiency of the displacement process. Control of vertical injection coverage is necessary for the maximum oil recovery and the reduction of excessive water cycling. Effective vertical coverage can be achieved by plugging thief intervals or with subsurface controls. The Vickers zone, Inglewood oil field, Calif., is an Unsegregated, 1,500-ft thick, multilayered reservoir consisting of unconsolidated sands interbedded with soft shales (Fig. 1). The average net sand thickness in this interval is 520 ft. The porosity and permeability values range from 28 to 36 percent and 500 to 2,500 md, respectively. Most injection wells are completed with either gravel-packed or slotted liners. In unsegregated zones this type of completion precludes the use of packers and subsurface beans to control or exclude injection into thief intervals. Within this zone, thief intervals are not confined to particular stratigraphic intervals; therefore, they cannot be excluded upon completion. General Theory: Selective Plugging Selective plugging in injection wells is not new to the petroleum industry. Cement, colloidal clays, inert solids, paraffins, waxes, organic resins and gels have long been utilized. Opinions differ as to the benefits obtained from using a selective plugging technique since apparently only the area adjacent to the wellbore is affected.
Performance Benchmarks for Screening Mammography (2006)

Community screening mammographic performance measurements of cancer outcomes for the majority of radiologists in the BCSC surpass performance recommendations. Recall rate for almost half of radiologists, however, is higher than the recommended rate.
<scp>DNA</scp> repair in trinucleotide repeat ataxias (2018)

The inherited cerebellar ataxias comprise of a genetic heterogeneous group of disorders. Pathogenic expansions of cytosine-adenine-guanine (CAG) encoding polyglutamine tracts account for the largest proportion of autosomal dominant cerebellar ataxias, while GAA expansion in the first introns of frataxin gene is the commonest cause of autosomal recessive cerebellar ataxias. Currently, there is no available treatment to alter the disease trajectory, with devastating consequences for affected individuals. Inter- and Intrafamily phenotypic variability suggest the existence of genetic modifiers, which may become targets amendable to treatment. Recent studies have demonstrated the importance of DNA repair pathways in modifying spinocerebellar ataxia with CAG repeat expansions. In this review, we discuss the mechanisms in which DNA repair pathways, epigenetics and other genetic factors may act as modifiers in cerebellar ataxias due to trinucleotide repeat expansions.
Crest factor reduction through in-band and out-of-band distortion optimization (2008)

A new crest factor reduction (CFR) technique is presented to reduce the peak to average ratio (PAR) of a wide-band code division multiple access (WCDMA) signal. Simple CFR techniques hard limit the desired signal to reduce the amplitude peaks and filtering is used to remove the out-of-band distortion. Here the trade-off between allowing out-of-band distortion and the error vector magnitude (EVM) is investigated for different levels of PAR reduction. It is demonstrated that there is an optimum clipping level for a desired PAR when trading off adjacent channel power ratio (ACPR) and EVM.
Progressive Taxation, Fairness, and Compliance* (1994)

This paper examines the preferences for income tax progressivity, other tax fairness issues, and tax compliance of a national sample of nearly six hundred heads of U.S. households. The results reveal that mean public preferences for fair tax burdens are close to actual effective tax rates; however, the similarity between average preferred and actual effective tax rates masks an underlying schism between three groups: (I) those who believe tax rates should be higher for upper income persons (steep progressives), (2) those who prefer mildly progressive tax rates (mild progressives), and (3) those who believe tax rates should be flat (“flatraters). The analysis includes demographic and fairness profiles associated with tax rate preferences. Attitudes about the overall fairness of the income tax, exchange equity with the federal government, government spending, tax complexity, and tax compliance behavior are examined. In general, respondents' stated preferences for vertical equity approximate the current distribution of the income tax burden, yet there is a relatively high consensus that the income tax is unfair, especially with regard to the ability of wealthy taxpayers to exploit loopholes to avoid paying their fair share, and that respondents regard their own tax burdens as unfair. These results suggest that providing information to the public about the relative amount of income taxes paid by upper income individuals and the effects of recent limitations on “loopholes” could improve public attitudes about the fairness of the income tax and tax compliance.
Synthesis of cyclopentadithiophenones (1970)

A series of cyclopentadithiophenones (I–VI) has been synthesised and a preliminary study of their chemical properties is reported. The last step in the synthetic schemes is an Ullmann ring closure of the appropriate dihalogenodithienyl ketone.
Microbial Transformation and Transfection (1966)

FORMATION OF COMPETENCE STATE 375 Physiological state of culture.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 375 Evidence for wall changes accompanying competence . . . . . . . . . . . . . . . . . . . .. 377 EVIDENCE FOR A DNA RECEPTOR OR COMPETENCE FACTOR. 378 CHARACTERISTICS OF BIOLOGICALLY ACTIVE DNA. 379 Molecular size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379 Strandedness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 381 DNA INTEGRATION IN TRANSFORMATION: FATE OF TRANSFORMING DNA 382 INTEGRATION OF ONE OR Two STRANDS: THE PROBLEM OF HETEROZYGOTES 385 LINKAGE GROUPS AND MAPPING OF GENOME BY TRANSFORMATION .. . 386 RNA TRANSFORMATION 389 TRANSFECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390
Using Specialized Information Technology to Reduce Errors in Emergency Cardiac Care (2005)

Information Technology (IT) solutions to patient safety/medical error problems are promising, but only in the early stages of their development and implementation. Many current IT applications for patient safety are focused on hospital processes, such as physician order entry and clinical information system based alerts for critical values. These interventions are broadly based, often targeting all medications ordered or all critical values for all patients, and, by necessity, are not specifically configured to address the care of patients with a particular condition or clinical problem. However, a condition- or problem-oriented IT system might better integrate into the care of frequent conditions and thereby be more effective. Accordingly, the authors focused on the use of IT for the most common serious conditions requiring emergency and acute care the diagnosis, triage, and treatment of emergency department (ED) patients with potential acute coronary syndrome (ACS). This condition includes acute myocardial infarction (AMI), also known as acute cardiac ischemia (ACI), and unstable angina pectoris (UAI), a condition that can lead to AMI. The Acute Cardiac Ischemia Time-Insensitive Predictive Instrument Information System (ACI-TIPI-IS) Demonstration Project at Tufts New England Medical Center used multiple IT applications for patient safety, combining real-time decision support, alerting, and retrospective feedback for performance improvement, all for the care of patients presenting to the ED with symptoms suggestive of ACS. A Web-based relational database system, the TIPI-IS, electronically compiled information from existing operational systems about all ED patients for whom an electrocardiogram (ECG) was done for possible ACS symptoms, and supported the patient safety aspects of the project. Real-time decision support was provided by the automatic printing of the probability of ACS on the ECG, as calculated by the ACI-TIPI.
Heparan sulfate, an endogenous TLR4 agonist, promotes acute GVHD after allogeneic stem cell transplantation (2012)

Graft-versus-host disease (GVHD) remains the most common cause of nonrelapse-related morbidity and mortality after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Although T-cell depletion and intensive immunosuppression are effective in the control of GVHD, they are often associated with higher rates of infection and tumor recurrence. In this study, we showed that heparan sulfate (HS), an extracellular matrix component, can activate Toll-like receptor 4 on dendritic cells in vitro, leading to the enhancement of dendritic cell maturation and alloreactive T-cell responses. We further demonstrated in vivo that serum HS levels were acutely elevated at the onset of clinical GVHD in mice after allo-HSCT. Treatment with the serine protease inhibitor α1-antitrypsin decreased serum levels of HS, leading to a reduction in alloreactive T-cell responses and GVHD severity. Conversely, an HS mimetic that increased serum HS levels accelerated GVHD. In addition, in patients undergoing allo-HSCT for hematologic malignancies, serum HS levels were elevated and correlated with the severity of GVHD. These results identify a critical role for HS in promoting acute GVHD after allo-HSCT, and they suggest that modulation of HS release may have therapeutic potential for the control of clinical GVHD.
Physical Performance Measures in the Clinical Setting (2003)

Gait speed and a physical performance battery are brief, quantitative estimates of future risk for hospitalization and decline in health and function in clinical populations of older adults. Physical performance measures might serve as easily accessible "vital signs" to screen older adults in clinical settings.