gebhart/patrepeval huggingface dataset:
Optical sensor based on ultrathin films of δ-form syndiotactic polystyrene for fast and high resolution detection of chloroform (2004)

In this work are analyzed the performances of an optoelectronic sensor based on a sensitive nanoscale film of semicrystalline syndiotactic polystyrene (sPS) with a nanoporous crystalline phase developed for fast and high resolution detection of chloroform. In particular, the change of the polymer refractive index due to chloroform sorption into the polymer layer when the sensor is exposed to CHCl3 has been used as transduction property. Reflectance measurements have been performed using a fiber optic refractometer, coated with nanometric sPS film at very low pressure of chloroform, demonstrating high sensitivity and fast-time response combined with excellent reversibility. Mass sorption experiments have also been performed on the same polymeric material with an electronic microbalance at the same conditions at which the optical sensor has been characterized. This allowed a quantitative correlation between the mass of the analyte sorbed within the polymer layer and the refractive index variation, which has been found to be essentially independent of the temperature.
A Practical Verification Methodology for Concurrent Programs (2009)

We describe a methodology for reasoning about realistic concurrent programs. Our methodology allows two-state invariants that span multiple objects without sacrificing thread- or data-modularity, as well as the derived construction of first-class objects that capture knowledge about the system state. The methodology has been im-plemented in an automatic sound verifier for concurrent C pro-grams being used to verify the code of the Microsoft Hypervisor, the virtualization kernel of Hyper-V.
Competition between Singlet Fission and Charge Separation in Solution-Processed Blend Films of 6,13-Bis(triisopropylsilylethynyl)pentacene with Sterically-Encumbered Perylene-3,4:9,10-bis(dicarboximide)s (2011)

The photophysics and morphology of thin films of N,N-bis(2,6-diisopropylphenyl)perylene-3,4:9,10-bis(dicarboximide) (1) and the 1,7-diphenyl (2) and 1,7-bis(3,5-di-tert-butylphenyl) (3) derivatives blended with 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-Pn) were studied for their potential use as photoactive layers in organic photovoltaic (OPV) devices. Increasing the steric bulk of the 1,7-substituents of the perylene-3,4:9,10-bis(dicarboximide) (PDI) impedes aggregation in the solid state. Film characterization data using both atomic force microscopy and X-ray diffraction showed that decreasing the PDI aggregation by increasing the steric bulk in the order 1 < 2 < 3 correlates with a decrease in the density/size of crystalline TIPS-Pn domains. Transient absorption spectroscopy was performed on ~100 nm solution-processed TIPS-Pn:PDI blend films to characterize the charge separation dynamics. These results showed that selective excitation of the TIPS-Pn results in competition between ultrafast singlet fission ((1*)TIPS-Pn + TIPS-Pn → 2 (3*)TIPS-Pn) and charge transfer from (1*)TIPS-Pn to PDIs 1-3. As the blend films become more homogeneous across the series TIPS-Pn:PDI 1 → 2 → 3, charge separation becomes competitive with singlet fission. Ultrafast charge separation forms the geminate radical ion pair state (1)(TIPS-Pn(+•)-PDI(-•)) that undergoes radical pair intersystem crossing to form (3)(TIPS-Pn(+•)-PDI(-•)), which then undergoes charge recombination to yield either (3*)PDI or (3*)TIPS-Pn. Energy transfer from (3*)PDI to TIPS-Pn also yields (3*)TIPS-Pn. These results show that multiple pathways produce the (3*)TIPS-Pn state, so that OPV design strategies based on this system must utilize this triplet state for charge separation.
Process planning for an Additive/Subtractive Rapid Pattern Manufacturing system (2009)

ix CHAPTER 1. GENERAL INTRODUCTION 1 1.1 Background 1 1.2 Motivation 4 1.3 Research Objectives 5 1.4 Dissertation Outline 6 CHAPTER 2. LITERATURE REVIEW 7 2.1 Rapid Prototyping Application in Pattern & Mold Manufacturing 7 2.2 Layer Thickness Algorithm 14 2.3 Tool Size and Machining Parameter Selection 17 2.4 Cutting Force Models 22 2.5 Thin Material Machining 23 2.6 Machining Error Prediction 25 CHAPTER 3. PROCESS OVERVIEW: ADDITIVE/SUBTRACTIVE RAPID PATTERN MANUFACTURING 28 3.1 The RPM Process 28 3.2 Process Planning Operations 32 3.2.1 Layer Thickness Analysis 34 3.2.2 Tool Size and Machining Parameter Selection 35 3.2.3 Thin Material Machining And Layer Thickness & Tool Size Interaction 36 3.3 Summary 38 CHAPTER 4. A LAYER THICKNESS ALGORITHM FOR ADDITIVE/SUBTRACTIVE RAPID PATTERN MANUFACTURING 39 Abstract 39 4.1 Background And Related Work 40 4.2 Solution Methodology 44 4.2.1 Factors Affecting Layer Thickness 49 4.2.2 Data Input 52 4.2.3 Feature Analysis 53 4.2.4 Layer Thickness Algorithm 62
Thiol-Mediated Chemoselective Strategies for In Situ Formation of Hydrogels (2018)

Hydrogels are three-dimensional networks composed of hydrated polymer chains and have been a material of choice for many biomedical applications such as drug delivery, biosensing, and tissue engineering due to their unique biocompatibility, tunable physical characteristics, flexible methods of synthesis, and range of constituents. In many cases, methods for crosslinking polymer precursors to form hydrogels would benefit from being highly selective in order to avoid cross-reactivity with components of biological systems leading to adverse effects. Crosslinking reactions involving the thiol group (SH) offer unique opportunities to construct hydrogel materials of diverse properties under mild conditions. This article reviews and comments on thiol-mediated chemoselective and biocompatible strategies for crosslinking natural and synthetic macromolecules to form injectable hydrogels for applications in drug delivery and cell encapsulation.
Reaching Movements With Similar Hand Paths But Different Arm Orientations. I. Activity of Individual Cells in Motor Cortex (1997)

This study shows that the discharge of many motor cortical cells is strongly influenced by attributes of movement related to the geometry and mechanics of the arm and not only by spatial attributes of the hand trajectory. The activity of 619 directionally tuned cells was recorded from the motor cortex of two monkeys during reaching movements with the use of similar hand paths but two different arm orientations, in the natural parasagittal plane and abducted into the horizontal plane. Nearly all cells (588 of 619, 95%) showed statistically significant changes in activity between the two arm orientations [analysis of variance (ANOVA). P < 0.01]. A majority of cells showed a significant change in their overall level of activity (ANOVA, main effect of task, P < 0.01) between arm orientations before, during, and after movement. Many cells (433 of 619, 70%) also showed a significant change in the relation of their discharge with movement direction (ANOVA, task x direction interaction term, P < 0.01) during movement, including changes in the dynamic range of discharge with movement and changes in the directional preference of cells that were directionally tuned in both arm orientations. Similar effects were seen for the discharge of cells while the monkey maintained constant arm postures over the different peripheral targets with the use of different arm orientations. Repeated data files from the same cell with the use of the same arm orientation showed only small changes in the level of discharge or in directional tuning, suggesting that changes in cell discharge between arm orientations cannot be explained by random temporal variations in cell activity. The distribution of movement-related preferred directions of the whole sample differed between arm orientations, and also differed strongly between cells receiving passive input predominantly from the shoulder or elbow. The electromyographic activity of most prime mover muscles at the shoulder and elbow was also strongly affected by arm orientation, resulting in changes in overall level of activity and/or directional tuning that often resembled those of the proximal arm-related motor cortical cells. A mathematical model that represented movements in terms of movement direction centered on the hand could not account for any of the arm-orientation-related response changes seen in this task, whereas models in intrinsic parameter spaces of joint kinematics and joint torques predicted many of the effects.
Serine-borate complex as a transition-state inhibitor of gamma-glutamyl transpeptidase. (1978)

gamma-Glutamyl transpeptidase, a membrane-bound enzyme, functions in the gamma-glutamyl cycle to catalyze utilization of glutathione. It has been postulated that the amino-acid-stimulated utilization of glutathione by gamma-glutamyl transpeptidase reflects an aspect of amino acid translocation. As one approach to the effective in vivo inhibition of this enzyme, the inhibition of the enzyme by L-serine in the presence of borate buffers [Revel, J.P. & Ball, E.G. (1959) J. Biol. Chem. 234, 577-582] was reinvestigated. Inhibition by L-serine, D-serine, and alpha-methyl-DL-serine in the presence of borate is competitive with respect to gamma-glutamyl substrate and such inhibition is parallel to the activity of transpeptidase toward L-gamma-glutamyl, D-gamma-glutamyl, and L-gamma-(alpha-methyl)glutamyl derivatives. L-Serine and borate effectively protect against inactivation of the enzyme by the gamma-glutamyl analogs, 6-diazo-5-oxonorleucine and azaserine, which bind to the gamma-glutamyl site of the enzyme. These studies, kinetic investigations, equilibrium dialysis experiments, and other data support the view that inhibition is produced by formation of serine-borate complex which binds at the gamma-glutamyl binding site of the light subunit of gamma-glutamyl transpeptidase. The data indicate that serine-borate complex is a transition state inhibitor of gamma-glutamyl transpeptidase.
<sup>1</sup>H and <sup>13</sup>C nuclear magnetic resonance studies of pyrazolo [<i>c</i>]‐ and pyrazolo [<i>b</i>]phenothiazines (1994)

Abstract The complete assignment of the 1 H and 13 C NMR spectra of eight Pyrazolo[ b ]‐ and pyrazolo[ c ]phenothiazines was performed using 1 H detected one‐bond heteronuclear multiple quantum coherence (HMQC) and long‐range (two and three bonds) heteronuclear multiple quantum bond connectivity (HMBC) experiments. 1 H and 13 C NMR chemical shifts are also reported for some N ‐arylindazoles
Flexible Architectures for Concurrent Reception of Multiple RF Carriers and Compressed-Sampling Signal Detection in Frequency and Direction-of-Arrival (2019)

The modulated-clock downconversion mixer (MC-DM) and the antenna-weight-modulated phased-array (AWM-PA) are explored as key enablers of ambient-aware, opportunistic receivers in emerging 5G deployments. The benefits of the MC-DM is demonstrated first with an out-of-channel interferer reflecting, inter-band carrier aggregation receiver architecture where the RF carrier combination is selected simply by programming the frequency of the CW waveform used to modulate the mixer clock. Second, a wideband spectrum scanner architecture utilizing pseudo-random modulation of the downconversion mixer clock and Compressed-Sampling (CS) DSP is explored where a few large interferers are detected in ns time. The benefits of the AWM-PA is demonstrated with a phased-array architecture utilizing pseudo-random modulation of the antenna weights and CS DSP where a few large DoAs are detected in us time.
Hepatic Glutathione Depletion and Impaired Bromosulphthalein Clearance Early after Paracetamol Overdose in Man and the Rat (1975)

1. Plasma clearance of bromosulphthalein was impaired in patients within 8 h, and in rats within 2 h , of paracetamol overdose, before biochemical signs of liver damage had appeared. 2. Paracetamol and bromosulphthalein competed for uptake into the liver and excretion into the bile. Impaired hepatic uptake of bromosulphthalein could also be demonstrated in man at doses of the drug within the therapeutic range. 3. In patients studied a smaller proportion of bromosulphthalein was retained in the plasma as the glutathione conjugate after an overdose than after therapeutic doses. This effect could be reproduced in the rat and shown to be due to depletion of hepatic glutathione and to impairment in the activity of the enzyme glutathione-S-aryl transferase. 4. These studies provide further evidence that depletion of hepatic glutathione occurs after paracetamol overdose in man, as in the experimental animal, allowing the subsequent accumulation and binding of a toxic metabolite of the drug within liver cells. Impaired enzymic conjugation of the toxic metabolite with hepatic reduced glutathione may also be important in this situation.
RESAMPLING METHODS IN SOFTWARE QUALITY CLASSIFICATION (2012)

In the presence of a number of algorithms for classification and prediction in software engineering, there is a need to have a systematic way of assessing their performances. The performance assessment is typically done by some form of partitioning or resampling of the original data to alleviate biased estimation. For predictive and classification studies in software engineering, there is a lack of a definitive advice on the most appropriate resampling method to use. This is seen as one of the contributing factors for not being able to draw general conclusions on what modeling technique or set of predictor variables are the most appropriate. Furthermore, the use of a variety of resampling methods make it impossible to perform any formal meta-analysis of the primary study results. Therefore, it is desirable to examine the influence of various resampling methods and to quantify possible differences. Objective and method: This study empirically compares five common resampling methods (hold-out validation, repeated random sub-sampling, 10-fold cross-validation, leave-one-out cross-validation and non-parametric bootstrapping) using 8 publicly available data sets with genetic programming (GP) and multiple linear regression (MLR) as software quality classification approaches. Location of (PF, PD) pairs in the ROC (receiver operating characteristics) space and area under an ROC curve (AUC) are used as accuracy indicators. Results: The results show that in terms of the location of (PF, PD) pairs in the ROC space, bootstrapping results are in the preferred region for 3 of the 8 data sets for GP and for 4 of the 8 data sets for MLR. Based on the AUC measure, there are no significant differences between the different resampling methods using GP and MLR. Conclusion: There can be certain data set properties responsible for insignificant differences between the resampling methods based on AUC. These include imbalanced data sets, insignificant predictor variables and high-dimensional data sets. With the current selection of data sets and classification techniques, bootstrapping is a preferred method based on the location of (PF, PD) pair data in the ROC space. Hold-out validation is not a good choice for comparatively smaller data sets, where leave-one-out cross-validation (LOOCV) performs better. For comparatively larger data sets, 10-fold cross-validation performs better than LOOCV.
Rulers and Representatives (1985)

'Elites', says Parry, are 'small minorities who appear to play an exceptionally influential part in political and social affairs' (1969, p. 13). The bulk of this chapter examines the social origins, economic connections and education of elites in Britain. The examination of social composition in this manner is an established tradition in elite studies but in recent years doubts have been cast on its value. Section 2 describes these doubts and explains why the study of elite origins and connections is nevertheless important. Section 3 summarises the evidence about the most important parts of the political elite, simply defined to include Members of Parliament and Ministers. Section 4 examines administrative elites, notably the higher civil service and key public officials like judges and those at the head of the armed forces. Section 5 summarises evidence about economic elites because—as we saw in Chapter 4—heads of large firms and big trade unions are also important political actors. Section 6 stands back from the detailed evidence to sketch the most important features of elite recruitment in Britain. But it is a legitimate criticism of studies of elite recruitment that they tell us little about the political culture of elites or about the actual distribution of power. Section 7 examines these subjects.
166-mW single-frequency output power interactive fiber lasers with low noise (1999)

In this letter, an interactive fiber laser is analyzed and experimentally demonstrated with results showing good performance in high-output power, accurate wavelength control and low relative intensity noise of less than -160 dB/Hz. It has a high-wavelength stability better than /spl plusmn/0.0006 nm measured for 24 h of operation, a high output power of over 166 mW and a laser sidemode suppression of over 52 dB with dual LD pump at 980 and 1480 nm in an MOPA structure. The fiber laser has a temperature-stabilized package with a wavelength temperature coefficient of -0.00028 nm//spl deg/C.
Supramolecular Self-Assembly of Macroscopic Tubes (2004)

The macroscopic molecular self-assembly of an amphiphilic hyperbranched copolymer in acetone generated multiwalled tubes millimeters in diameter and centimeters in length. The thickness of the tube walls approaches 400 nanometers, and the walls have an inhomogeneous lamella structure that alternates between ordered hydrophilic domains and amorphous, partly irregular hydrophilic domains.
Validation of Turandot, a fast processor model for microarchitecture exploration (1999)

We describe the results in validating the performance projections from a parameterized trace-driven simulation model of a speculative out-of-order superscalar processor which has been developed with the objective of acting as a microarchitecture exploration tool. Because of its objective, the model-called Turandot-has been designed to deliver much higher simulation speed than what is achieved from detailed (RTL) processor models. We summarize the validation methodology used, and present experimental data gathered in the calibration of one processor organization modeled with Turandot against a detailed reference model. The results indicate that, on the average for SPECint95 sampled traces, Turandot is within 5% of the results reported by the reference model while exhibiting a speed-up factor of about 70.
Effect of Sb Addition on the Formation of High-T<sub>c</sub> Phase in the Bi-Pb-Sr-Ca-Cu-O Ceramics (1989)

We prepared Bi 1.6- x Pb 0.4 Sb x Sr 2 Ca 2 Cu 3 O y ceramics ( x =0.1 and 0.2) by the melt-quenching method and examined the effect of Sb addition on the superconducting properties. It was found that the formation of the high- T c phase was remarkably enhanced by the addition of a very small amount ( x =0.1) of the Sb element. The critical temperature T c (zero) of the sample ( x =0.1) annealed at 850°C or 860°C for 100h was 102 K.
Nickel Vibrating Micromechanical Disk Resonator with Solid Dielectric Capacitive-Transducer Gap (2006)

A MEMS-based vibrating disk resonator fabricated in a low temperature nickel metal material and using a 30-nm nitride dielectric capacitive transducer has been demonstrated at frequencies approaching 60 MHz with Q's as high as 54,507, which is the highest to date for any micro-scale metal resonator in the VHF range. The frequency-Q product of 3.3times10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">12</sup> achieved by this device is three orders of magnitude higher than the 1.1times10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">9</sup> of previous nickel micromechanical resonators. The degree of isolation afforded by its supports strongly governs the achievable Q's of this device, which vary from 490 when a 2 mum-radius supporting stem is used, to 54,507 when no stem is used, clearly indicating an anchor dominated loss mechanism, but more importantly indicating that nickel's intrinsic material Q is quite high at VHF. Furthermore, because its highest process temperature is 380degC, and there are paths to an even lower temperature ceiling (e.g., 100degC), the fabrication process for nickel disks is amenable to post-processing over finished foundry CMOS wafers, even those using advanced low-k dielectrics around copper metallization. Nickel material thus presents an intriguing path towards a complete communication transceiver (including all high Q passives) on a chip
Nucleotide Sequence of the Putative Human Tyrosinase Pseudogene. (1991)

We have cloned and sequenced the putative human tyrosinase pseudogene, which shares more than 98% nucleotide homology with exon 4 and exon 5 of the human tyrosinase gene including their flanking introns. Because of such a high homology, both the tyrosinase gene and its pseudogene could be amplified from genomic DNA by polymerase chain reaction. The nucleotide sequences presented thus enable us to discriminate the tyrosinase gene from its related sequences and are invaluable for a gene diagnosis of oculocutaneous albinism.
Herpes Simplex Virus Tumor-Associated Antigens in Cancer Patients (1976)

Data are reported on the HSV nonstructural antigens detected in GPK and RK cells after infection with the same strain of virus. Both the HSV types 1 and 2 NV antigens consist of more than one component for which the immunized guinea pigs produce distinct antibodies. It was possible to separate by PAGE, HSV-induced markers not only from cells undergoing lytic infection by the virus but also from viable cells from squamous cell carcinoma of the head and neck and the urogenital tract. These fractions were tested with sera from cancer patients, and the percentages of their CF reactivity are reported. The specificity of the antibody to the antigen from the cancer cells was less high than that of the antibody to the antigen from HSV-infected cells. It is suggested that the use of these PAGE separate antigens would eliminate the need for removal of the virion antibody from the cancer sera prior to testing them for the NV-specific antibody.
Electrostatic and van der Waals contributions to protein adsorption: computation of equilibrium constants (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrostatic and van der Waals contributions to protein adsorption: computation of equilibrium constantsCharles M. Roth and Abraham M. LenhoffCite this: Langmuir 1993, 9, 4, 962–972Publication Date (Print):April 1, 1993Publication History Published online1 May 2002Published inissue 1 April 1993https://doi.org/10.1021/la00028a015RIGHTS & PERMISSIONSArticle Views1051Altmetric-Citations139LEARN 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 InReddit PDF (3 MB) Get e-Alerts Get e-Alerts