gebhart/patrepeval huggingface dataset:
Kalighat paintings from nineteenth century Calcutta in Maxwell Sommerville's Ethnological East Indian Collection (2000)

L'A. presente les peintures Kalighat, elaborees a Calcutta, dans l'aire du Temple de Kali, vendues comme souvenirs de pelerinage et de tourisme, entre les annees 1830 et 1930, et reunies dans la Collection Ethnologique de Maxwell Sommerville
Mouse paw edema. A new model for inflammation? (1987)

1. Injection of carrageenan into the mouse paw produced a biphasic edema. During the first phase, which developed up to 24 h, edema was of low intensity and unrelated to the dose of carrageenan given. During the second phase, after 24 h, edema was more pronounced, presented a clear dose-response relationship and peaked at 72 h after injection. 2. Histological analysis of the subplantar area 4 h after carrageenan injection revealed a diffuse cellular infiltrate with predominance of polymorphonuclear neutrophils. Between 48 and 72 h, an intense accumulation of macrophages, eosinophils and lymphocytes was observed, together with a great increase in the number of circulating leukocytes and platelets. 3. Pretreatment with the anti-inflammatory drugs indomethacin and dexamethasone reduced both phases of edema in a dose-dependent fashion. 4. The present study shows that carrageenan-induced mouse paw edema constitutes a new and interesting model for the study of the mediators of inflammation and for the screening of new anti-inflammatory drugs.
Using Intentional and System Dynamics Modeling to Address WHYs in Enterprise Architecture (2013)

Taking and executing cost effective decisions in enterprises is becoming increasingly difficult due to multiple change drivers that affect varied aspects of enterprise. Enterprise architecture (EA) frameworks provide holistic treatment of whats and hows of enterprise but leave the important questions of whys unaddressed. Intentional modeling and system dynamics modeling provide treatment of whys at a point in time and over time respectively. We propose an approach where both intentional and system dynamics models are used in conjunction with EA models for a more effective treatment of whys than provided by either. Initial results with a case study suggest that best of both worlds may be obtained with such combined treatment of whys in
The origin of dips for the graphene-based DNA sequencing device (2011)

We recently proposed an ultrafast DNA sequencing method that electrically distinguishes different nucleobases on a graphene nanoribbon (GNR), utilizing π-π interaction. Analyzing the molecular orbitals (MOs) and the features of dips in conductance for our GNR-based sequencing device, we prove that the Fano resonance is responsible for the characteristic dips of each nucleobase.
Comparative studies on the polyamine metabolism and DFMO treatment of MCF-7 and MDA-MB-231 breast cancer cell lines and xenografts. (1992)

In order to characterize the estrogen receptor (ER)-positive MCF-7 and ER-negative MDA-MB-231 human breast cancer cells and xenografts, their growth kinetic parameters and some biochemical characteristics concerning the receptor status and polyamine metabolism were determined and compared. The doubling times calculated from the growth curves showed higher proliferation rate of MDA-MB-231 cells, both in culture (21 hours) and in xenograft (9.7 days), in comparison to the MCF-7 cells which had values of 32 hours and 11.6 days, respectively. Growth-dependent changes observed in the intracellular putrescine, spermidine and spermine concentrations indicated a higher activity of polyamine metabolism in the MDA-MB-231 cells and xenograft as well. However, biosynthetic key-enzyme ornithine decarboxylase activity (ODC, EC 4.1.1.17) showed neither characteristic differences between the two types of breast cancer, nor consistent relationship with their proliferation rate. Metabolic alterations of the MCF-7 and MDA-MB-231 cell lines grown in vitro were also reflected in the polyamine composition of their culture medium. Independently of their receptor status, both types of breast cancer were responsive to difluoromethylornithine (DFMO) treatment. DFMO inhibited the ODC activity totally and depleted the cellular polyamine levels. MCF-7 cells in culture were more sensitive to the antitumoral effect of DFMO than the MDA-MB-231 line, while the rate of growth inhibition did not differ significantly in the xenografts. The present results provided further evidence on the different polyamine metabolism of ER-positive MCF-7 and ER-negative MDA-MB-231 human breast cancer cells in vitro and in vivo, suggesting a correlation of hormonal modulation with polyamines as a determinant group of biological response modifiers.
Selectivity of macrocyclic aminocarboxylates for alkaline-earth metal ions and stability of their complexes (1996)

The stability constants of alkaline-earth-metal complexes of several macrocycles derived from 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (H3L1) were determined by the potentiometric pH-titration method. The derivatives are formed by variation of the substituent R at N10, i.e. R = Prn(H3L2), CH2C6H4NO2-p(H3L3), CH2CH(OH)CH3(H3L4), CH2CH(OH)CH2OH (H3L5), CH2CH(OH)CH2OCH3(H3L6) and CH2CO2H (H4L7). In general, the stabilities of these complexes are greater than those with non-cyclic ligands except in a few cases, e.g. trans-1-cyclohexane-1,2-diyldinitrilotetraacetic acid (H4cdta). For H3L1–H3L3, the stability trend is CaL > MgL > SrL > BaL; for H3L4–H3L6 and H4L7, CaL > SrL > BaL > MgL. The former trend is similar to those found for smaller, non-cyclic ligands with six or less donor atoms such as H4cdta. The latter trend is the same as that for the larger, more flexible, and calcium-selective ligand ethylenedioxydiethylenedinitrilotetraacetic acid. The selectivity of H3L4–H3L6 and H4L7 for Ca2+, Sr2+ and Ba2+ over Mg2+ ion is presumably due to their ability to saturate the octahedral co-ordination environment of Mg2+ while still allowing the larger Ca2+, Sr2+ and Ba2+ to be fully eight-co-ordinated.
Prolonged treatment with bicalutamide induces androgen receptor overexpression and androgen hypersensitivity (2010)

Bicalutamide-resistant LNCaP-BC2 exhibited AR overexpression and hypersensitivity to low levels of androgen. Our data suggests that AR overexpression is a significant mechanism of bicalutamide resistance similar to resistance from chronic androgen depletion. In addition, pAR(210) overexpression could be a potential mechanism for hypersensitivity to low androgen in LNCaP-BC2.
The GECO marine vibrator system (1988)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1988The GECO marine vibrator systemAuthors: Graham R. JohnsonIan ThompsonLeon J. WalkerGraham R. JohnsonGECO Geophysical Co. Inc., Ian ThompsonGECO Geophysical Co. Inc., and Leon J. WalkerGECO Geophysical Co. Inc.https://doi.org/10.1190/1.1892438 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1892438FiguresReferencesRelatedDetailsCited byMarine vibrators: the new phase of seismic exploration14 November 2018 | Geophysical Prospecting, Vol. 67, No. 6 SEG Technical Program Expanded Abstracts 1988ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 1988 Pages: 1359 publication data© 1988 Copyright © 1988 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 10 Feb 2005 CITATION INFORMATION Graham R. Johnson, Ian Thompson, and Leon J. Walker, (1988), "The GECO marine vibrator system," SEG Technical Program Expanded Abstracts : 71-74. https://doi.org/10.1190/1.1892438 Plain-Language Summary PDF DownloadLoading ...
T-cell activation is modulated by the 3D mechanical microenvironment (2019)

Abstract T cells recognize mechanical forces through a variety of cellular pathways, including mechanical triggering of the T-cell receptor (TCR) and mechanical triggering of the integrin LFA-1. We show here that T cells can recognize forces arising from the rigidity of the microenvironment. We fabricated 3D hydrogels with mechanical stiffness tuned to 4 kPa and 40 kPa and specially engineered be microporous independent of stiffness. We cultured T cells and antigen presenting cells within the matrices and studied activation by flow cytometry and live imaging. We found there was an augmentation of T-cell activation in the context of mechanically stiffer 3D material as compared to the softer material. In contrast, proliferation, activation markers, and migration were all diminished in T cells cultured in the softer material. These results show that T cells can sense their mechanical environment and amplify responses in the context of mechanical stiffness.
Multilayer, multicomponent, and multiphase physical vapor deposition coatings for enhanced performance (1994)

Hard physical vapor deposition (PVD) coatings are widely used today for enhanced performance, and PVD hard coatings have evolved because they can be deposited at temperatures much lower than those commonly needed for the chemical vapor deposition of coatings. Although binary coatings such as TiN are still very popular and are tried in many different applications, new multilayer, multicomponent, or multiphase coatings are finding successful applications. Multicomponent coatings such as TiAlNx or Ti(C,N) are better than TiN in certain tooling applications, and Ti0.5Al0.5N makes an excellent diffusion barrier in microelectronic devices. Reactively deposited coatings such as MoNx, CrNx, and NbNx all form multiple phases, and either individual phases or mixed phases of these materials are now being tested for tribological applications. Many nitride coatings such as β-Mo2N can extend the rolling contact fatigue life of rolling elements such as bearings by a factor of 5 or more. Multilayer polycrystalline TiN/NbN superlattice films have shown hardness as high as 5200 kgf mm−2, and other new superlattice films such as TiN/Ni are being developed. Although many of these new coatings will be tried on tools, the future for them lies beyond tooling. The ability to deposit these new coatings at low substrate temperatures without damaging the properties of the substrate, which can be done with plasma assisted PVD processes, will open up many new tribological and microelectronic applications.
Probabilistic Analysis and Correction of Chen's Tag Estimate Method (2011)

Radio frequency identification (RFID) is a ubiquitous wireless technology which allows objects to be identified automatically. An RFID tag is a small electronic device with an antenna and has a unique serial number. For some RFID applications and in the ALOHA-based anticollision algorithms, the number of tags in the system needs to be estimated. In Trans. Autom. Sci. Eng., vol 6, no. 1, pp. 9-15, Jan. 2009, Chen, a probabilistic method for tag estimation in ALOHA-based RFID systems was proposed, based on the maximum a posteriori probability. Although this approach is novel and useful, it has a mathematical error in modeling the problem. In this short paper, we address this problem and provide the correct probabilistic model for the ALOHA-based RFID systems. Some consequences of correcting the error in Trans. Autom. Sci. Eng., vol 6, no. 1, pp. 9-15, Jan. 2009, Chen, are discussed and the model is validated via simulation. Using the correct model, the performance of the ALOHA-based anticollision algorithm can be improved.
Narrowband interference suppression in CDMA spread spectrum communications (1994)

Spread spectrum (SS) communications offers a promising solution to an overcrowded frequency spectrum amid growing demand for mobile and personal communications services. The proposed overlay of spread spectrum signals on existing narrowband users implies strong interference for the SS system. The paper discusses how system performance can be improved by preprocessing to suppress narrowband interference. Linear prediction filters have been proposed since the 1980s for suppression of narrowband interference. Vijayan and Poor (1991) proposed nonlinear methods of suppressing the narrowband signal with significant increase in the SNR improvement. The present authors derive an enhancement to this nonlinear prediction and achieve further improvement by applying the technique to interpolating filter structures. Finally, they extend results to the case of multiple spread spectrum users and demonstrate how nonlinear filtering can dramatically outperform linear filtering.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
International Council for Educational Media (formerly ICEF) (1969)

In contrast to the sultry weather of last year's Assembly in Lisbon, autumnal sunshine and a nip in the air greeted the large number of delegates to the 19th General Assembly held in Stockholm from 22–26 September, 1969. The last time the Conference was held in Stockholm was June 1957. Those attending this year were keen to see and hear of the rapid advances made in equipment supply and teaching methods in the twelve years' interval. They were not disappointed.
Imines, Cyclic (2000)

Abstract This article describes aziridines with particular emphasis on the parent compound ethyleneimine. The physical and chemical properties of ethyleneimine, such as aminoethylation, synthesis of heterocycles, and polymerization, are discussed. Current industrial production methods, economic aspects, analytical and test methods, storage and toxicology, and safe handling procedures for ethyleneimine are described. The wide‐ranging applications of ethyleneimine derivatives, including the paper industry, extraction and complexing, additives, fixing, textile finishing, flocculation, electroplating, medicine, membranes and osmosis, and tertiary crude oil extraction are reviewed.
Molecular-orbital decomposition of the ionization continuum for a diatomic molecule by angle- and energy-resolved photoelectron spectroscopy. I. Formalism (1996)

A theoretical formalism is developed for the quantum-state-specific photoelectron angular distributions (PADs) from the direct photoionization of a diatomic molecule in which both the ionizing state and the state of the ion follow Hund’s case (b) coupling. The formalism is based on the molecular-orbital decomposition of the ionization continuum and therefore fully incorporates the molecular nature of the photoelectron–ion scattering within the independent electron approximation. The resulting expression for the quantum-state-specific PADs is dependent on two distinct types of dynamical quantities, one that pertains only to the ionization continuum and the other that depends both on the ionizing state and the ionization continuum. Specifically, the electronic dipole-moment matrix element rlλ exp(iηlλ) for the ejection of a photoelectron with orbital angular momentum quantum number l making a projection λ on the internuclear axis is expressed as ΣαλŪlαλλ exp (iπτ̄αλλ) Mαλλ, where Ūλ is the electronic transformation matrix, τ̄αλλ is the scattering phase shift associated with the αλth continuum molecular orbital, and Mαλλ is the real electronic dipole-moment matrix element that connects the ionizing orbital to the αλth continuum molecular orbital. Because Ūλ and τ̄αλλ depend only on the dynamics in the ionization continuum, this formalism allows maximal exploitation of the commonality between photoionization processes from different ionizing states. It also makes possible the direct experimental investigation of scattering matrices for the photoelectron–ion scattering and thus the dynamics in the ionization continuum by studying the quantum-state-specific PADs, as illustrated in the companion article on the photoionization of NO.
Possible role for p34cdc2 kinase in etoposide-induced cell death of Chinese hamster ovary cells. (1990)

In an effort to shed light upon the processes of antitumor drug-induced cell death, we have carried out a systemic study of the effects of the anti-topoisomerase II agent, etoposide, on Chinese hamster ovary cells. Treatment of Chinese hamster ovary cells for 1 h with a 2-log cell-killing concentration of etoposide induces a high incidence of DNA single-strand breaks which are rapidly repaired upon drug removal. p34cdc2 kinase activity is inhibited within 1 h of addition of etoposide. Following removal of drug, cells accumulate transiently in G2. Upon recovery of p34cdc2 kinase activity (between 12 and 24 h posttreatment), approximately 50% of cells progress through mitosis which results in micronucleation. Examination of mitotic figures at various posttreatment incubation times indicates that micronucleation of daughter cells could be attributed to abnormal segregation of chromosomes during mitosis. Unexpectedly, p34cdc2 kinase activity remains elevated relative to untreated controls until 36 h post-etoposide treatment, a point where no further cell division takes place. This activity decreases by 48 h posttreatment, concomitant with a decrease in cell viability as estimated by the ability to exclude trypan blue. These results indicate that etoposide may induce cytotoxicity via gross chromosomal fragmentation, and that p34cdc2 kinase may be involved in this process.
ATSC DTV Receiver Implementation (2006)

Receivers of broadcast digital television (DTV) service operate in an often difficult environment of electrical interference, multiple other TV signals in close frequency proximity, multipath, wide dynamic range input signals, and uncertain antenna choice and installation. Receivers must demodulate and decode the signal and optimize its processing for different display technologies-a process that can include format conversion between progressive and interlaced scanning and different screen pixel counts. Data that supports the new services enabled by digital transmission must be decoded and processed. Receiver designers must implement the required functions cost-effectively even as they strive to provide performance and feature differentiation from their competitors' products. This paper describes all of the DTV receiver functions and references the associated standards. Emphasis is given to the difficult areas of signal reception and demodulation and to sections of the receiver that enable attractive and recognizable consumer features.
N-Acetylneuraminic Acid: Neoglycoproteins and Pseudopolysaccharides (1987)

Abstract A simplified procedure for the synthesis of acetochloroneuraminic acid is described starting from the methyl ester. N-acetyl neuraminic acid α-allyl glycoside was prepared in high yield using silver salicylate as catalyst. Reductive ozonolysis of the allyl group, followed by direct reductive ami nation to protein carriers, gave immunogenic neoglycoproteins. Copolymerization of the α-allyl glycoside with acrylamide produced a water-soluble pseudopolysaccharide useful for the EL ISA technique.
Weighing Stars: Aggregating Online Product Reviews for Intelligent E-commerce Applications (2008)

A new task in text-sentiment analysis adds usefulness scoring to polarity/ opinion extraction to improve product- review ranking services, helping shoppers and vendors leverage information from multiple sources. Human language is a medium not only for exchanging information but also for conveying subjective opinions and emotion. Recently, interest in text-subjectivity and sentiment analysis has increased as part of the larger research effort in affective computing, which aims to make computers understand and generate human-like emotions through language and other expressive activities such as gesture.
Closed-Form Inverse Kinematics for Continuum Manipulators (2009)

This paper presents a novel, analytical approach to solving inverse kinematics for multi-section continuum robots, defined as robots composed of a continuously bendable backbone. The problem is decomposed into several simpler subproblems. First, this paper presents a solution to the inverse kinematics problem for a single-section trunk. Assuming endpoints for all sections of a multi-section trunk are known, this paper then details applying single-section inverse kinematics to each section of the multi-section trunk by compensating for the resulting changes in orientation. Finally, an approach which computes per-section endpoints given only a final-section endpoint provides a complete solution to the multi-section inverse kinematics problem. The results of implementing these algorithms in simulation and on a prototype continuum robot are presented and possible applications discussed.
Scoring Disease-Medication Associations using Advanced NLP, Machine Learning, and Multiple Content Sources. (2016)

Effective knowledge resources are critical for developing successful clinical decision support systems that alleviate the cognitive load on physicians in patient care. In this paper, we describe two new methods for building a knowledge resource of disease to medication associations. These methods use fundamentally different content and are based on advanced natural language processing and machine learning techniques. One method uses distributional semantics on large medical text, and the other uses data mining on a large number of patient records. The methods are evaluated using 25,379 unique disease-medication pairs extracted from 100 de-identified longitudinal patient records of a large multi-provider hospital system. We measured recall (R), precision (P), and F scores for positive and negative association prediction, along with coverage and accuracy. While individual methods performed well, a combined stacked classifier achieved the best performance, indicating the limitations and unique value of each resource and method. In predicting positive associations, the stacked combination significantly outperformed the baseline (a distant semi-supervised method on large medical text), achieving F scores of 0.75 versus 0.55 on the pairs seen in the patient records, and F scores of 0.69 and 0.35 on unique pairs.
The value of LAN/WAN based operational data display systems (1995)

The development of client/server personal computer networks allow electric utilities with such networks to make near real-time operating data available to any employee with network access. Sophisticated graphical displays and trending capability provides operations, planning and management personnel a high performance window into operations that could only be dreamed of a few years ago. This paper describes the benefits that two California utilities have achieved from establishment of LAN/WAN based operational data display systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Fenestrated Endografts for Complex Abdominal Aortic Aneurysms (2010)

The treatment of aortic aneurysm disease using endovascular stent grafts has evolved over the past 20 years. Extending this approach to aneurysms involving the visceral aorta has required development of fenestrated endografts. By creating branches to accommodate visceral vessels, the proximal landing zone can be chosen based on the adequacy of the aortic wall, rather than the constraints of visceral vessels. This allows for a more stable repair, and permits a minimally invasive approach in even very complex aneurysms. As the technology becomes more widespread, the use of these grafts has emerged from an experimental form to standard of care in some jurisdictions. Thus, many patients who might have previously been considered high risk for aneurysm repair are now candidates for surgery. This article outlines the basic concepts behind the development of fenestrated endografts, their current use, and the future of the technology.