gebhart/patrepeval huggingface dataset:
Use of combined shear and pressure acoustic waves to study interfacial and bulk viscoelastic effects in aqueous polymeric gels and the influence of electrode potentials (1997)

AT-cut quartz crystals operating in the thickness-shear mode at 10 MHz have been used to study the viscoelastic changes occurring during the polymerization and gelling of acrylamide solutions. The gelling process is described in terms of the storage and loss moduli, G′ and G″, or in terms of the shear wave velocity and the attenuation coefficient. The solutions are quite elastic (G′≈G″) and both moduli increase with gelling. These effects are attributed to hydrogen bonding. The attenuation coefficient decreases abruptly at the onset of gelling. The effective penetration of the shear wave increases from 2.6 µm in solution to 3.4 µm in the gel. The moduli are greatly influenced by the application of a small bias voltage across the gel and this is related to the injection of ions into the shear wave sensing region. Abrupt switching of the bias induces large transient changes in the moduli that are attributed to Lippmann electrocapillary effects at the gel/crystal electrode interface. It is also demonstrated that the crystal produces longitudinal pressure waves, which propagate through the gel and produce secondary resonances. They have a marked effect on the interpretation of the shear wave impedance and can be used to monitor changes in bulk properties through the gelling process.
<i>In vitro</i> and <i>In vivo</i> Radiosensitization Induced by the Ribonucleotide Reductase Inhibitor Triapine (3-Aminopyridine-2-Carboxaldehyde-Thiosemicarbazone) (2006)

These results indicate that Triapine can enhance tumor cell radiosensitivity in vitro and in vivo and suggest that this effect involves an inhibition of DNA repair.
Design of LDV: a multilevel secure relational database management system (1990)

The authors describe the design of a secure database system,LDV (Lock Data Views), that builds upon the classical security policies for operating systems. LDV is hosted on the LOgical Coprocessing Kernel (LOCK) Trusted Computing Base (TCB). LDVs security policy builds on the security policy of LOCK. Its design is based on three assured pipelines for the query, update, and metadata management operations. The authors describe the security policy of LDV, its system architecture, the designs of the query processor, the update processor, the metadata manager, and the operating system issues. LDVs solutions to the inference and aggregation problems are also described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Characterization of a stimulatory adenosine A2a receptor in adult rat ventricular myocyte (1996)

The expression and function of stimulatory adenosine A2 receptor on the cardiac myocyte is not well defined. The objective of the present study is to characterize the A2a receptor in adult rat cardiac ventricular myocytes. After selection of an optimal lot of collagenase for myocyte isolation and for consistent measurement of adenosine-mediated responses, the A1-receptor pathway was inactivated by pertussis toxin and by the A1-selective antagonist 1,3-dipropyl-8-cyclopentylxanthine. Effects of the adenosine agonist and antagonist or cardiac myocyte contractile amplitude and on adenosine 3',5'-cyclic monophosphate (cAMP) levels were determined. The A2a-receptor-selective agonist 2-[p-(2-carboxyethyl)phenylethylamino]-5'-N-ethylcarboxamidoade nos ine (CGS-21680) caused a pronounced stimulation of myocyte contractile amplitude and an increase in the cAMP level, as did the nonselective agonists 5'-(N-ethylcarboxamido) adenosine (NECA) and adenosine. The A2a-receptor-selective antagonist 8-(3-chlorostyryl)caffeine blocked the NECA- and adenosine-induced positive inotropic response. Probing of myocyte RNA with a rat A2a-receptor cDNA demonstrated a 2.6-kb mRNA, corresponding to that encoding the A2a receptor. Together, data from contractile, cAMP, and RNA studies indicate that A2a receptors are expressed and are functionally coupled to stimulation of cAMP accumulation and cardiac contractility in adult rat ventricular myocytes.
LANDSLIDES: INVESTIGATION AND MITIGATION. CHAPTER 3 - LANDSLIDE TYPES AND PROCESSES (1996)

The range of landslide processes is reviewed in this chapter, and a vocabulary is provided for describing the features of landslides relevant to their classification for avoidance, control, or remediation. The classification of landslides in the previous landslide report (TRB Special Report 176, 1978) has been widely adopted, so departures from it have been minimized and the emphasis is on the progress made since 1978. Although this chapter is complete in itself, particular attention is drawn to changes and additions to the vocabulary used in the previous report and the reasons for the changes.
Chalcogen-based aerogels as a multifunctional platform for remediation of radioactive iodine (2011)

Aerogels employing chalcogen-based (i.e., S, Se, and/or Te) structural units and interlinking metals are termed chalcogels and have many emerging applications. Here, chalcogels are discussed in the context of nuclear fuel reprocessing and radioactive waste remediation. Motivated by previous work on removal of heavy metals in aqueous solution, we explored the application of germanium sulfide chalcogels as a sorbent for gas-phase I2 based on Pearson's Hard/Soft Acid–Base (HSAB) principle. This work was driven by a significant need for high-efficiency sorbents for 129I, a long-lived isotope evolved during irradiated UO2 nuclear fuel reprocessing. These chalcogel compositions are shown to possess an affinity for iodine gas, I2(g), at various concentrations in air. This affinity is attributed to a strong chemical attraction between the chalcogen and I2(g), according to the HSAB principle. The high sorption efficiency is facilitated by the high porosity as well as the exceptionally large surface area of the chalcogels. This paper briefly discusses the current and alternative waste forms for 129I, elaborates on preliminary work to evaluate a Pt-Ge-S chalcogel as a I2(g) sorbent, and discusses the unknown chalcogel properties related to these materials in waste form.
Chirochromism-Photochromism by Epimerization: Search for a Liquid Crystal Phototrigger (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChirochromism-Photochromism by Epimerization: Search for a Liquid Crystal PhototriggerMingbao Zhang and Gary B. SchusterCite this: J. Am. Chem. Soc. 1994, 116, 11, 4852–4857Publication Date (Print):June 1, 1994Publication History Published online1 May 2002Published inissue 1 June 1994https://pubs.acs.org/doi/10.1021/ja00090a033https://doi.org/10.1021/ja00090a033research-articleACS PublicationsRequest reuse permissionsArticle Views515Altmetric-Citations45LEARN 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 matrix metalloproteinases in epithelial migration (2009)

In response to injury, epithelial cells migrate across the denuded tissue to rapidly close the wound and restore barrier, thereby preventing the entry of pathogens and leakage of fluids. Efficient, proper migration requires a range of processes, acting both inside and out of the cell. Among the extracellular responses is the expression of various matrix metalloproteinases (MMPs). Though long thought to ease cell migration simply by breaking down matrix barriers, findings from various models demonstrate that MMPs facilitate (and sometimes repress) cell movement by other means, such as affecting the state of cell-matrix interactions or proliferation. In this Prospect, we review some key data indicting how specific MMPs function via their activity as proteinases to control closure of epithelial wounds.
El juego en los antropoides y los niños (2004)

ResumenEl juego es un tipo de conducta más fácil de describir que de explicar y por la diversidad que se observaplan- tea diversas interpretaciones, probablemente por la aparente ausencia de un fin inmediato. Todo ello genera diversas teorías sobre la conducta lúdica, la mayoría complementarias, que ponen de manifiesto que es un tema poco estudiado, todavía inmaduro y que afortunadamente existe una gran interdisiciplinariedad. No obstante por un lado están las teorías sobre el juego y por otro la descripción de la conducta que se puede abordar desde dos aproximaciones básicas: la estructuralistay la funcionalista. Vistos los planteamientos teóricos y prácticos del estudio de juego se describen los distintos tipos de juego observados en diversas especies de primates humanos y no humanos para finalmente analizar las posibles variables endógenas y exógenas que pueden condicionar este tipo de conducta.
Fluorosilicones as High Temperature Elastomers (1971)

Two types of fluorosilicone polymers are described, the poly (fluoroalkyl)siloxanes and the hybrid fluorocarbon silicones. The first type, represented by the structure (CF 3 CH 2 CH 2 SiMeO) n exhibits good solvent resistance, thermal and oxidative stability and is commercially available in the form of rubber, sealants and fluids. The second type,
The Development of Respiratory Syncytial Virus-Specific IgE and the Release of Histamine in Nasopharyngeal Secretions after Infection (1981)

We studied the development of respiratory syncytial virus (RSV)-specific IgE and the release of histamine in nasopharyngeal secretions from 79 infants with various forms of respiratory illness due to RSV. RSV-IgE was measured by an enzyme-linked immunosorbent assay; specificity was confirmed by appropriate blocking experiments. Histamine content in the secretions was determined by fluorimetric methods. RSV-IgE was detectable in only one of 19 patients with RSV infection without wheezing, but was detectable in the majority of 60 patients with wheezing (P less than 0.01). Titers of RSV-IgE were significantly higher in patients with wheezing (P less than 0.05). Histamine was detectable in secretions of some patients with all forms of illness but was detected significantly more often (P = 0.05) and in higher concentrations in patients with wheezing. Peak titers of RSV-IgE and concentrations of histamine correlated significantly with the degree of hypoxia (P less than 0.001). Formation of RSV-specific IgE and release of histamine may adversely affect the outcome of RSV infection.
The Effect of Oxidation for Hot-Pressed β-Sialon-SiC Composites (1990)

β-sialon with Z=1(+4), Z=2(+4) and Z=3(+4) (Si6-ZAlZOZN8-Z: Z=0-4.2, +4:4eq% excess oxygen over the each Z number) from a powder mixture of α-Si3N4, α-Al2O3, AlN and SiC was hot pressed to produce β-sialon-SiC composites. The hot-pressed β-sialon-SiC composites were oxidized in an electric furnace at 1300°C for 100 hours. Bending strength, weight gain, surface roughness and optical microscopic observation of sintered materials were carried out after oxidation. The results are obtained as follows:(1) The weight gain of the composite decreased slightly by the addition of SiC.(2) The bending strength of the composites was slightly improved after oxidation.(3) Weight gain of the composites was little increased as the Z number increased, but pitting was observed on the surface of Z=2(+4) and Z=3(+4) β-sialon-50wt% SiC composites.
Multimedia content protection (2006)

Multimedia content protection is a controversial topic. Content owners want to protect their rights while consumers want flexible usage, privacy and seamless content flow. In this tutorial we cover from cryptography fundamentals, to history, emerging standards, state-of-the-art approaches and live demos.
Concurrency in Operating Systems (1976)

As general-purpose computing systems become larger and more complex, it has become uneconomical to restrict their use to a single user or program. This has introduced the necessity of finding ways to safely share them.
Monoclonal antibody specific for Listeria monocytogenes associated with a 66-kilodalton cell surface antigen (1992)

A monoclonal antibody (MAb), EM-7G1, specific for Listeria monocytogenes was developed by using a previously developed MAb, C11E9 (A. K. Bhunia, P. H. Ball, A. T. Fuad, B. W. Kurz, J. W. Emerson, and M. G. Johnson, Infect. Immun. 59:3176-3184, 1991), to mask epitopes shared by L. monocytogenes and Listeria innocua in a 66-kDa cell surface protein. MAb EM-7G1 was an immunoglobulin subclass G1 antibody with kappa light chains. This MAb reacted with all 34 strains of L. monocytogenes tested and showed no cross-reaction with other Listeria spp. or other gram-positive or gram-negative organisms tested by enzyme-linked immunosorbent assay, dot blotting, and colony blotting. A second MAb, EM-6E11, reacted with all Listeria spp. tested but no other bacteria. In a Western blot (immunoblot) assay, EM-7G1 reacted with a crude cell surface protein of 66 kDa with a pI value of 6.7, while EM-6E11 reacted with two protein bands of 43 and 94 to 97 kDa with pI values of 4.0 and 4.3, respectively. Results with trypsin or pronase treatments indicated that the cell antigen reacting with EM-7G1 was on the surface of L. monocytogenes V7 and Scott A cells.
Ion pair extraction of pharmaceutical amines. Role of dipolar solvating agents in extraction of dextromethorphan (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIon pair extraction of pharmaceutical amines. Role of dipolar solvating agents in extraction of dextromethorphanTakeru. Higuchi, Arthur F. Michaelis, T. Tan, and Arthur R. HurwitzCite this: Anal. Chem. 1967, 39, 8, 974–979Publication Date (Print):July 1, 1967Publication History Published online1 May 2002Published inissue 1 July 1967https://pubs.acs.org/doi/10.1021/ac60252a051https://doi.org/10.1021/ac60252a051research-articleACS PublicationsRequest reuse permissionsArticle Views319Altmetric-Citations40LEARN 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
Negative Index Lens Aberrations (2004)

We examine the Seidel aberrations of thin spherical lenses composed of media with refractive index not restricted to be positive. We find that consideration of this expanded parameter space allows reduction or elimination of more aberrations than is possible with only positive index media. In particular we find that spherical lenses possessing real aplanatic focal points are possible only with negative index. We perform ray tracing, using custom code that relies only on Maxwell's equations and conservation of energy, that confirms the results of the aberration calculations.
Reduced bias growth of pure-phase cubic boron nitride (1997)

We report results on an improved growth process for cubic boron nitride (c-BN) films. The films are deposited on a dc-biased silicon substrate using ion-assisted sputtering. First, we grow a BN template layer at a bias voltage which maximizes the sp3 content. After this template layer attains a thickness of ∼500 Å, corresponding to the coalescence of the mosaiclike grain structure, we find that we can reduce the substrate bias to about 50% of its initial value while sustaining pure phase c-BN growth. The reduction in nitrogen ion energy results in a dramatic increase in the growth rate as well as significantly improved film quality.
Color wheel pin: Usable and resilient ATM authentication (2016)

We are witnessing a growing demand for ATM authentication solutions that overcome the limitations of the de facto standard mechanism based on magnetic card and numeric PIN, that has revealed to be weak against ATM-specific attacks (e.g., skimming and recording attacks). An emerging trend is relying on smartphones as a carrier for authentication. However, authentication mechanisms based on the use of a smartphone requires the same mechanisms to be resilient to new, smartphone-specific threats like device theft and common attacks like shoulder-surfing attacks and spyware. In this paper, we propose a new ATM authentication mechanism called Color Wheel Pin which combines a usable ATM authentication mechanism with robustness against both generic and smartphone and ATM specific security threats.
Exosome-mediated transfer from the tumor microenvironment increases TGFβ signaling in squamous cell carcinoma. (2016)

Transforming growth factor-beta (TGFβ) signaling in cancer is context dependent and acts either as a tumor suppressor or a tumor promoter. Loss of function mutation in TGFβ type II receptor (TβRII) is a frequent event in oral cavity squamous cell carcinoma (SCC). Recently, heterogeneity of TGFβ response has been described at the leading edge of SCC and this heterogeneity has been shown to influence stem cell renewal and drug resistance. Because exosome transfer from stromal to breast cancer cells regulates therapy resistance pathways we investigated whether exosomes contain components of the TGFβ signaling pathway and whether exosome transfer between stromal fibroblasts and tumor cells can influence TGFβ signaling in SCC. We demonstrate that exosomes purified from stromal fibroblasts isolated from patients with oral SCC contains TβRII. We also demonstrate that transfer of fibroblast exosomes increases TGFβ signaling in SCC keratinocytes devoid of TβRII which remain non-responsive to TGFβ ligand in the absence of exosome transfer. Overall our data show that stromal communication with tumor cells can direct TGFβ signaling in SCC.
A New Sensitive and Specific Combination of CD81/CD56/CD45 Monoclonal Antibodies for Detecting Circulating Neuroblastoma Cells in Peripheral Blood Using Flow Cytometry (2000)

Triple-color flow cytometric analysis using CD81/CD56/CD45 MoAbs is useful for detecting NBL cells in PB. Further studies testing this approach using samples of PB with NBL contamination are needed to test this approach in patients.
Conformational Heterogeneity of Unbound Proteins Enhances Recognition in Protein–Protein Encounters (2016)

To understand cellular processes at the molecular level we need to improve our knowledge of protein-protein interactions, from a structural, mechanistic, and energetic point of view. Current theoretical studies and computational docking simulations show that protein dynamics plays a key role in protein association and support the need for including protein flexibility in modeling protein interactions. Assuming the conformational selection binding mechanism, in which the unbound state can sample bound conformers, one possible strategy to include flexibility in docking predictions would be the use of conformational ensembles originated from unbound protein structures. Here we present an exhaustive computational study about the use of precomputed unbound ensembles in the context of protein docking, performed on a set of 124 cases of the Protein-Protein Docking Benchmark 3.0. Conformational ensembles were generated by conformational optimization and refinement with MODELLER and by short molecular dynamics trajectories with AMBER. We identified those conformers providing optimal binding and investigated the role of protein conformational heterogeneity in protein-protein recognition. Our results show that a restricted conformational refinement can generate conformers with better binding properties and improve docking encounters in medium-flexible cases. For more flexible cases, a more extended conformational sampling based on Normal Mode Analysis was proven helpful. We found that successful conformers provide better energetic complementarity to the docking partners, which is compatible with recent views of binding association. In addition to the mechanistic considerations, these findings could be exploited for practical docking predictions of improved efficiency.
Using Graphics (1988)

This chapter includes a number of graphics programs which can be used as they appear here, or may be adapted to produce the type of output you require.
Delay extraction and passive macromodeling of lossy coupled transmission lines (2003)

Recently, several algorithms were proposed for time-domain macromodeling of distributed transmission line networks. It has been demonstrated that preserving passivity of the macromodel is essential to guarantee a stable global transient simulation. Techniques such as method-of-characteristics yield fast transient results for long delay lines. However, they do not guarantee the passivity of the macromodel. On the other hand, methods such as matrix rational approximation provide efficient macromodels for lossy coupled lines, while preserving passivity. However, for long lossy delay lines this may require higher order approximations, making the macromodel inefficient. In order to address the above difficulty, this paper presents a new algorithm for efficient macromodeling of lossy coupled lines with long delay. The proposed method employs delay extraction prior to approximating the exponential stamp of the line and guarantees the macromodel passivity. The paper also provides guidelines on the practical applicability of the delay extraction and the matrix rational approximation, based on the knowledge of line parameters.