gebhart/patrepeval huggingface dataset:
Solid-State Structures of Hydrogen-Bonded Tapes Based on Cyclic Secondary Diamides (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSolid-State Structures of Hydrogen-Bonded Tapes Based on Cyclic Secondary DiamidesJohn C. MacDonald and George M. WhitesidesCite this: Chem. Rev. 1994, 94, 8, 2383–2420Publication Date (Print):December 1, 1994Publication History Published online1 May 2002Published inissue 1 December 1994https://pubs.acs.org/doi/10.1021/cr00032a007https://doi.org/10.1021/cr00032a007research-articleACS PublicationsRequest reuse permissionsArticle Views1966Altmetric-Citations765LEARN 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
Role of Glucagon, Catecholamines, and Growth Hormone in Human Glucose Counterregulation (1979)

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Effects of Copolymer Composition and Free Volume Change on the Miscibility of Poly(styrene-<i>co</i>-vinylphenol) with Poly(ε-caprolactone) (2001)

A series of poly(styrene-co-vinylphenol) (PSOH) copolymers were prepared and characterized. The miscibility and hydrogen bonding between the partially hydroxylated polystyrene with poly(ε-caprolactone) (PCL) blend were investigated by differential scanning calorimetry and Fourier transform infrared spectroscopy. The copolymers containing higher than 13 mol % vinylphenol were found to be fully miscible with PCL according to differential scanning calorimetry studies. Quantitative analyses on the fraction of hydrogen-bonded carbonyl groups in the solid state were made by FTIR spectroscopy, and good correlations between thermal behaviors and infrared results were observed. The critical vinylphenol content of 0.1 mol % in PSOH copolymer for the blend to be miscible was predicted from the Painter−Coleman association model and binary interaction model. The discrepancy between the experimental result and theoretical prediction is probably caused by significant free volume increase in this blend system, which is analyzed by the Kovacs' free volume theory. The free volume of the PSOH/PCL is increased which give a positive contribution in the Gibbs free energy. As a result, the polystyrene needs to incorporate more poly(vinylphenol) in PSOH copolymer in order to overcome the free energy increased caused by the free volume increase predicted by the Painter−Coleman association model and the binary interaction model.
Hysteresis in Crystallization of Stretched Vulcanized Rubber from X-Ray Data. Correlation with Stress-Strain Behavior and Resilience (1941)

Abstract 1. For sample H, with high modulus and high resilience, there is a greater crystallizing tendency above 350 per cent for the first cycle and above 400 per cent after previous flexing. 2. Both H and L have narrow loops, which indicate an approach to reversibility in the formation and deformation of crystalline regions above 400 per cent for the first and later cycles. 3. The crystallization of H is greatly enhanced above 400 per cent after the first cycle of stretching and retraction; L remains essentially unchanged by previous history over this range; this is analogous to the much greater change in the stress-strain loop from the first to third cycles for H, as compared with L. 4. At elongations below 400 per cent for the first cycle and 350 per cent for subsequent cycles, L has a far greater hysteresis or tendency to retain the crystalline arrangement, and this greatly increases after the first cycle, so that the fiber interferences persist on retraction to elongations 150 per cent below the elongation required for institution of organization on extension of the sample. Sample H is considerably more consistent in its behavior over the lower elongations, and between the first and later cycles. In other words, the tendency of H to return to the normal state on release of a deforming force is clearly evident, whereas L shows a marked tendency to retain a structure once set up. If resilience is the property of an elastic body related to the percentage of the potential energy introduced by applied stresses which is returned as work when the body returns to its original shape and size upon release of the stresses, then these x-ray data would seem to be consistent with the higher resilience of H; for ordinary measurements of resilience are evidently related to the lower ranges of deformation over which H returns to its normal state (disorder of macromolecules as in a liquid) so much more easily than L.
A local defect resonance to enhance acoustic wave-defect interaction in ultrasonic nondestructive evaluation (2011)

It is experimentally shown that, to provide maximum acoustic wave-defect interaction, the concept of a local defect resonance should be applied. The model of a resonant defect is used for the selection of the wave frequency to enhance the excitation of the defect in nonlinear acoustics and ultrasonic thermography. An increase in nonlinear response of the defect at its local resonance exceeds substantially the one at natural frequencies of the specimen. The strong wave-defect interaction is confirmed by resonance induced rise of local temperature of the defect in the frequency band of its local resonance.
Frequency band assignments free of second-order beat interference (1970)

This paper analyzes the restrictions on the bandwidth of a system carrying a multiplicity of modulated signals, if all second-order beats are to occur outside the band. This is of particular interest in cable TV systems where the signals are frequently assigned to two bands separated by a "mid-band" where no signals are assigned.
Effect of Low Frequency Electromagnetic Fields on ( 3 H)Glucose Uptake in Rat Tissues (2007)

The aims of this study were to evaluate the influence of an extremely low-frequency electromagnetic field (Elf-EMf) on ( 3 H)glucose uptake in the peripheral tissues and organs of rats. rats were exposed to elF-emF (frequency-10 Hz, induction -1.8-3.8 mT) one hour daily for 14 consecutive days. control ani -
User interface of a Home Page Reader (1998)

We first discuss the difficulties that blind people face in trying to lie in society, because of the lack of accessible information resources, and then consider the potential of the Web as a new information resource for the blind. After describing how blind people in Japan currently access the Web, we give an overview of our system for nonvisual Web access. Our system has five special characteristics. One is the use of a numeric keypad for surfing the Net, with a key assignment designed for intuitive operation. The second is a fast- forward key for quick reading. The next two are that hyperlinks are read in a female voice and HTML tags are converted into voice data. The fifth is that the system can be synchronized with Netscape Navigator. After evaluating the system and offering some conclusions, we discuss our plans for future work.
Net partitions yield better module partitions (1992)

The authors demonstrate that the dual intersection graph of the netlist strongly captures circuit properties relevant to partitioning. The main contribution of the analysis highlights advantages to using the dual representation of the logic design, and confirming that net structure and interrelationships, rather than module adjacencies, should constitute the primary descriptors of a circuit. In particular, the dual intersection graph representation of the netlist hypergraph yields much more natural circuit partitioning formulations, since it inherently emphasizes relationships between signal nets. The intersection graph yields a sparser circuit representation than traditional net models. An efficient algorithm, called IG-Match, is proposed for completing the net partition. The IG-Match method yielded significant performance improvements over previous ratio-cut partitioning methods. >
Invasive aortic pulse wave velocity as a marker for arterial stiffness predicts outcome of renal sympathetic denervation (2016)

Patients with lower pulse wave velocity showed a significantly better response to denervation. These findings emphasise that pulse wave velocity might be used as a selection criterion for renal denervation.
A 37-kilodalton glycoprotein from a baculovirus of Orgyia pseudotsugata is localized to cytoplasmic inclusion bodies (1993)

The gene encoding a 37-kDa glycoprotein (gp37) of Orgyia pseudotsugata multinucleocapsid nuclear polyhedrosis virus (OpMNPV) was located and sequenced. gp37 of OpMNPV was found to have 62 and 37% amino acid sequence identity with gp37 of Autographa californica multinucleocapsid nuclear polyhedrosis virus (AcMNPV) and with a protein reported to be a component of occlusion bodies from Choristoneura biennis entomopoxvirus, respectively. The mRNA start site of the OpMNPV gp37 gene was mapped within a late promoter sequence (TTAAG). A TrpE fusion protein containing 55% of the OpMNPV gp37 gene amino acid sequence was used to generate a monospecific antiserum. Western immunoblot analysis of OpMNPV-infected Lymantria dispar cells detected gp37 beginning at 24 h postinfection. Immunoelectron microscopy indicated that the protein is concentrated in cytoplasmic inclusion bodies late in infection. In contrast to gp37 of AcMNPV which was present in the matrix of occlusion bodies, OpMNPV gp37 was not observed in this location. Neither OpMNPV nor AcMNPV gp37 was associated with the polyhedron envelope.
Retention and interference of learned dexterous manipulation: interaction between multiple sensorimotor processes (2014)

An object can be used in multiple contexts, each requiring different hand actions. How the central nervous system builds and maintains memory of such dexterous manipulations remains unclear. We conducted experiments in which human subjects had to learn and recall manipulations performed in two contexts, A and B. Both contexts involved lifting the same L-shaped object whose geometry cued its asymmetrical mass distribution. Correct performance required producing a torque on the vertical handle at object lift onset to prevent it from tilting. The torque direction depended on the context, i.e., object orientation, which was changed by 180° object rotation about a vertical axis. With an A1B1A2 context switching paradigm, subjects learned A1 in the first block of eight trials as indicated by a torque approaching the required one. However, subjects made large errors in anticipating the required torque when switching to B1 immediately after A1 (negative transfer), as well as when they had to recall A1 when switching to A2 after learning B through another block of eight lifts (retrieval interference). Classic sensorimotor learning theories attribute such interferences to multi-rate, multi-state error-driven updates of internal models. However, by systematically changing the interblock break duration and within-block number of trials, our results suggest an alternative explanation underlying interference and retention of dexterous manipulation. Specifically, we identified and quantified through a novel computational model the nonlinear interaction between two sensorimotor mechanisms: a short-lived, context-independent, use-dependent sensorimotor memory and a context-sensitive, error-based learning process.
Smart distribution protection using current-only directional overcurrent relay (2010)

Overcurrent relays are widely used for power systems protection. Transmission side uses more directional type relays, while distribution systems, e.g., radial and ring-main subtransmission systems use non-directional types. The fault direction may be forward (between relay and grid), or reverse (between relay and source), the normal power flow being from source to the grid. Traditional directional overcurrent relays utilize the reference voltage phasor for estimating the direction of the fault. This requires measurement of both current and voltage using respective sensors. This makes the directional overcurrent relays more costly than the non-directional type. In this paper, a novel current-only directional detection possibility is highlighted along with theoretical and test signal analysis. Possible utilization of the current-only directional relay for intelligent directional protection in the distribution systems are described. Directional protection for distribution systems is a key focus area for enabling the smart grid.
Automatic evaluation and training in English pronunciation (1990)

SRI is developing a system that uses real time speech recognition to diag nose, evaluate and provide training in spoken English. The paper first describes the methods and results of a study of the feasibility of automati cally grading the performance of Japanese students when reading English aloud. Utterances recorded from Japanese speakers were independently rated by expert listeners. Speech grading software was developed from a speaker independent hidden-Markov-model speech recognition system. The auto matic grading procedure first aligned the speech with a model and then com pared the segments of the speech signal with models of those segments that have been developed from a database of speech from native speakers of English. The evaluation study showed that ratings of speech quality by experts are very reliable and automatic grades correlate well (r > 0.8) with those expert ratings. SRI is now extending this technology and integrating it in a spoken-language training system. This effort involves (1) porting SRI's DECIPHER speech recognition system to a microcomputer platform, and (2) extending the speech-evaluation software to more exactly diagnose a learner's pronuncia tion deficits and lead the learner through an appropriate regimen of exer cises.
Unexpected lack of reactivity of allogeneic anti-Ia monoclonal antibodies with MHC class II molecules expressed by mouse intestinal epithelial cells. (1993)

We have examined MHC class II molecules expression by murine gut epithelial cells using a large panel of anti-Ia antibodies. In contrast to conventional APC (i.e., B cells and macrophages), only two anti-Ia antibodies reacted with enterocytes: a xenogeneic rat anti-Ia mAb (CD311) directed against a monomorphic class II determinant, and a polyclonal antiserum directed against both I-A and I-E heterodimers. In contrast, allogeneic anti-Ia mAb were either unreactive (17 of 20) or reacted weakly (3 of 20) with enterocytes, even after in vivo treatment with IFN-gamma. This pattern of Ia reactivity of epithelial cells was tissue specific (restricted to gut mucosa) and cell specific (restricted to gut epithelial cells). Biochemical and molecular studies confirmed that enterocytes expressed I-A and I-E isotypes on their cell surface and contained mRNA of both subregion loci. Interestingly, enterocytes appeared deficient in expression of the MHC class II-associated invariant chain, and are not able to stimulate allogeneic T cells. These data suggest that gut epithelial cells express a conformation of class II molecules, antigenically distinct from that expressed on conventional APC.
Policies For Multi-Echelon Supply: Drp Systems With Probabilistic Time-Varying Demands (2003)

This paper develops rolling planning horizon policies to manage material flows in multi-echelon supply – distribution networks with relatively general stochastic demand processes and procurement, transportation, inventory and shortage cost structures. Initially, the problem is formulated as a stochastic program with recourse, and its deterministic equivalent program is approximated by a multi-echelon lot-sizing model based on “risk inflated effective demands.” A DRP – decomposition of this approximate model, which can he used with planning time fences or allocation algorithms, is then introduced. The use of expediting actions is also discussed. Finally, through a set of simulation experiments, the solutions obtained with our planning policies are compared with the solutions given by a classical DRP approach using safety stocks. The results show that the approach proposed leads to significant improvements.
Complementary new approaches enable repositioning of failed drug candidates (2006)

Until recently, safe drug candidates that failed in clinical trials were shelved as drug developers channelled resources to the next candidates in the pipeline. In the past few years, new technologies, improved genomic information and high-throughput methods have made it possible to quickly and economically re-examine advanced drug candidates for therapeutic activity against other diseases. This development arrives at an opportune time, as pharmaceutical companies strive to fill sparse late-stage pipelines at the same time as keeping costs down. Specialised companies are emerging with new methods and a fresh point of view to assist pharmaceutical developers in turning failed drug candidates from one therapeutic area into successful treatments in another. This editorial introduces a series of papers to be published in Expert Opinion on Investigational Drugs, discussing discontinued drugs from 2005.
BOND LENGTHS AND BOND ORDERS IN π-ELECTRON HETEROCYCLES (1978)

Abstract A comparison of bond orders calculated by different methods (Pauling, HMO, PPP, SCF-MO) with experimental bond lengths has been made for representative sets of sulfur and nitrogen π-electron heterocycles and statistical treatment of the results has been presented. Bond orders obtained by simple techniques (Pauling, HMO) are equally effective in predicting and correlating bond lengths in these heterocycles as those calculated by more sophisticated methods (PPP, SCF-MO).
Modular digital holographic microscopy system for marker free quantitative phase contrast imaging of living cells (2006)

A modular digital holographic microscopy system for integration in commercial microscopes has been developed. The reconstruction of the digitally captured holograms is performed by application of a spatial phase shifting non diffractive reconstruction method. As a consequence of the applied algorithms the reconstructed holographic images contain not the disturbing terms "twin image" and "zero order". In combination with microscope lenses the system's lateral resolution is improved up to the diffraction limit. Digital holographic focus adjustment with constant imaging scale allows multi focus imaging of object planes and subsequent focus correction from only a single captured hologram. Results of investigations on technical specimen characterize the lateral and axial resolution of the system. The applicability of the system is demonstrated by results obtained from drug stimulated cellular morphology changes and apoptosis monitoring of living pancreas cells.
EU FP7 INFSO-ICT-317669 METIS, D2.3 Components of a new air interface - building blocks and performance (2014)

This document provides intermediate results of the concepts being developed in the radio link research of METIS. For each of the technology components (TeC) within the technology component clusters (TeCC), covering flexible air interface, new waveforms, modulation and coding techniques as well as multiple access, medium access control and enablers for radio resource management, key findings and conclusions collected so far are summarized in section 2. Continuative descriptions and research outcomes are given in the annex and referred publications.The results presented here will be extended in the further progress of the project, and they will be used in the next phase of the project to develop and refine the overall METIS system concept instantiated by the horizontal topics. The suitability of the single technology components for the overall system design being able to meet the wide range of requirements for 5G will then be evaluated.
Relations entre l'état angulaire d'une vapeur atomique soumise au pompage optique et ses propriétés d'absorption et de dispersion. - Première Partie (1969)

Cet article est consacré à l'étude de l'optimisation des signaux de détection optique obtenus dans une expérience de pompage optique. Les formules générales obtenues dans des publications antérieures sont explicitées en fonction des divers paramètres intervenant dans une expérience : direction de propagation du faisceau lumineux, composition spectrale, nature du polariseur et de l'analyseur ; on peut ainsi déterminer dans chaque cas particulier le montage qui permet de détecter dans les meilleures conditions les observables atomiques auxquelles on s'intéresse. Les calculs exposés font intervenir le formalisme des opérateurs tensoriels irréductibles. Dans un second article, nous montrerons comment les résultats obtenus de cette manière peuvent être établis à partir de considérations générales purement géométriques.
Identification of fragments of human transcripts froma defined chromosomal region: representational difference analysis of somatic cell hybrids (1998)

We have tested representational difference analysis of cDNAs from somatic cell hybrids as a means to directly isolate expressed sequences derived from a defined chromosomal region. To this end, the hamster-human somatic cell hybrid Q1Z, which carries Xq28 as the only human chromosomal fragment, was used as Tester and the parental hamster cell line Y21 as Driver. After two rounds of subtraction, two major products of 510 and 307 bp were obtained, derived from the highly expressed human Xq28-derived QM gene and from a hamster repeat sequence strongly up-regulated in Q1Z, respectively. In a second subtraction experiment these fragments were added to the driver, to prevent their reappearance. After three rounds of subtraction a more complex difference product was obtained. Of 26 different fragments analysed, 12 fragments were derived from Xq28-derived genes, 10 of which were from known genes. One fragment was derived from a hamster gene strongly up-regulated in Q1Z. These results demonstrate that cDNA RDA can be used to isolate gene fragments from defined chromosomal regions and that suppression with major products, derived from highly expressed genes, is advantageous to isolate larger number of fragments, presumably derived from rarer transcripts.
Analysis of ambergris tincture (2004)

Abstract This is a report of the detection of 13‐ethoxy‐8 α ,13‐epoxy‐14,15,16‐trinorlabdane ( 1 ) and 12‐ethoxy‐8 α ,12‐epoxy‐13,14,15,16‐tetranorlabdane ( 2 ), hitherto unidentiﬁed and considered as degradation products of ambrein, among 31 constituents found by analysis of ambergris tincture. Copyright © 2004 John Wiley & Sons, Ltd.
Evaluation of error detection schemes using fault injection by heavy-ion radiation (2003)

Several concurrent error detection schemes suitable for a watch-dog processor were evaluated by fault injection. Soft errors were induced into a MC6809E microprocessor by heavy-ion radiation from a Californium-252 source. Recordings of error behavior were used to characterize the errors as well as to determine coverage and latency for the various error detection schemes. The error recordings were used as input to programs that simulate the error detection schemes. The schemes evaluated detected up to 79% of all errors within 85 bus cycles. Fifty-eight percent of the errors caused execution to diverge permanently from the correct program. The best schemes detected 99% of these errors. Eighteen percent of the errors affected only data, and the coverage of these errors was at most 38%.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>