gebhart/patrepeval huggingface dataset:
Selective crosslinking in polymer blends. II. Its effect on impact strength and other mechanical properties of polypropylene/unsaturated elastomer blends (1994)

Abstract The effect of selective crosslinking of the unsaturated elastomer particles in polypropylene (PP) matrix was investigated. The crosslink system comprised N,N ′‐ m ‐phenylene‐ bis maleimide and 6‐ethoxy‐2,2,4‐trimethyl‐1,2‐dihydroqinoline or polymerized‐(2,2,4‐trimethyl‐1,2‐dihydroquinoline). The system, which produces only carbon radicals, crosslinks the elastomer particles selectively without causing excessive degradation of the PP matrix. The reaction was carried out under a dynamic crosslinking process using a twin extruder on PP/EPDM, PP/SBS, and PP/SIS blends, all of which comprised 80 wt % of PP and 20 wt % of the elastomer. After the crosslinking, the impact strength of the blends increased. Especially remarkable increase is obtained at 23°C where PP is above its T g . The increase of interfacial adhesion caused by production of PP/elastomer graft copolymer at the interface is considered to be the most important factor in the improvement. It permits the interactions of the stress concentrate zone developed at the elastomer particles and causes shear yielding of the PP matrix. Impact fracture energy absorption can be thus changed by adjusting the degree of the interfacial adhesion even at essentially the same morphology. The crosslinked elastomer particles also play the role of a nucleation agent. The selective cross‐linking of the elastomer particles in PP/elastomer blends is demonstrated to be an excellent technique to produce a high‐impact, high‐modulus PP. © 1994 John Wiley & Sons, Inc.
Changes in Biomarkers of Inflammation and Angiogenesis During Androgen Deprivation Therapy for Prostate Cancer (2012)

These men were characterized by elevations in several traditional markers of aggressive disease and also by higher levels of several inflammatory biomarkers. Although ADT decreased IL-6 levels, IL-1β, IL-8, and SDF-1α remained significantly higher than in controls. The role of these biomarkers should be further explored.
Finite-temperature phase transition to $m=1/2$ plateau phase in a S=1/2 XXZ model on Shastry-Sutherland Lattices (2010)

We study the finite-temperature transition to the $m=1/2$ magnetization plateau in a model of interacting $S=1/2$ spins with longer range interactions and strong exchange anisotropy on the geometrically frustrated Shastry-Sutherland lattice. This model was shown to capture the qualitative features of the field-induced magnetization plateaus in the rare-earth tetraboride, ${\rm TmB_4}$. Our results show that the transition to the plateau state occurs via two successive transitions with the two-dimensional Ising universality class, when the quantum exchange interactions are finite, whereas a single phase transition takes place in the purely Ising limit. To better understand these behaviors, we perform Monte Carlo simulations of the classical generalized four-state chiral clock model and compare the phase diagrams of the two models. Finally, we estimate a parameter set that can explain the magnetization curves observed in ${\rm TmB_4}$. The magnetic properties and critical behavior of the finite-temperature transition to the $m=1/2$ plateau state are also discussed.
Blood Lead Concentrations < 10 μg/dL and Child Intelligence at 6 Years of Age (2007)

Evidence from this cohort indicates that children's intellectual functioning at 6 years of age is impaired by blood lead concentrations well below 10 microg/dL, the Centers for Disease Control and Prevention definition of an elevated blood lead level.
Clinical manifestations and stages of rett syndrome (2002)

The presentation and clinical diagnosis of Rett syndrome at various ages and stages are reviewed. In addition to the classical form, variability in phenotype between different atypical Rett forms is given. Obligatory, supportive, and differential diagnostic criteria are summarized. Long-term follow-up findings in ageing Rett women are addressed.
Ultrasound characterization of cavitation microbubbles produced by femtosecond laser pulses (2009)

An ultrasound-based technique capable of detection and spatio-temporal characterization of microbubbles induced in water by femtosecond laser is reported. A highly focused single-element ultrasound transducer was used both to detect passive acoustic emission of the microbubbles and to probe the microbubbles at different stage of their evolution. The location of origin and wall of the microbubble was assessed from temporal characteristics of the passive acoustic emissions and of the pulse-echo signals. The radius of the microbubble was estimated as the distance between the origin of the bubble and its wall. The ultrasound characterization of microbubbles induced by femtosecond pulses agreed well with theoretical predictions based on the well-known Rayleigh-based model of bubble behavior in liquid. The results of this study demonstrate that femtosecond laser-induced microbubbles with typical sizes of several tens of micrometers can be characterized by the developed ultrasound technique.
논문 : 경기국제항공전 방문동기와 방문 후 이미지 간의 관계에서 관여도의 조절효과와 신뢰의 매개효과 검증 (2015)

본 연구는 국제항공전에 방문한 방문객을 대상으로 방문동기와 방문 후 이미지 간의 관계에 대한 검증으로 동기와 이미지 사이에 작용하는 방문객의 관여도에 대한 조절효과와 신뢰에 대한 매개효과를 검증하기 위해 진행되었다. 연구 목적을 달성하기 위한 설문조사는 2013년 5월 1일~5월 5일까지 경기 안산시 사동 경기안산항공전 행사장에서 실시하였다. 총 350부의 설문을 배포하여 최종적으로 실증분석에 331부의 설문지를 사용하였고, 수집한 자료는SPSS 21.0 프로그램을 이용하여 분석하였다. 방문동기 요인은 선행연구와 유사한 탈일탕성, 신기성, 이벤트, 교류,가족친화의 5가지 요인이 도출되었으며, 방문 후 이미지와 관여도, 신뢰에 대한 측정은 각각 단일요인으로 축약되었다. 방문동기와 방문 후 이미지와의 관계에서 관여도는 통계적으로 유의한 조절효과가 작용하는 것으로 나타났으며, 신뢰의 매개역할 검증 결과는 방문동기의 신기와 이벤트 요인이 방문 후 이미지와의 관계에서 부분 매개역할을 하는 것으로 분석되었다.
Tetracenomycin F1 monooxygenase: Oxidation of a naphthacenone to a naphthacenequinone in the biosynthesis of tetracenomycin C in Streptomyces glaucescens (1993)

Tetracenomycin (Tcm) F1 monooxygenase, which catalyzes the oxidation of the naphthacenone Tcm F1 to the 5,12-naphthacenequinone Tcm D3 in the biosynthesis of the anthracycline antibiotic Tcm C in Streptomyces glaucescens, has been purified to homogeneity and characterized. Gel filtration chromatography yields a molecular weight of 37,500 whereas SDS-PAGE gives a single band with a molecular weight of 12,500, indicating that the Tcm F1 monooxygenase is a homotrimer in solution. The N-terminal sequence of the enzyme establishes that it is encoded by the tcmH gene. The monooxygenase displays an optimal pH of 7.5 and has a Km of 7.47 +/- 0.67 microM and Vmax of 473 +/- 10 nmol.min-1.mg-1. Formally, the Tcm F1 monooxygenase can be classified as an internal monooxygenase that requires only O2 for the enzymatic oxidation. Yet, it apparently does not possess any of the prosthetic groups of known monooxygenases, such as flavin or heme groups, nor does it utilize metal ions. It is inactivated by p-chloromercuribenzoic acid, N-ethylmaleimide, and diethyl pyrocarbonate, suggesting that sulfhydryl groups and histidine residues are essential for the enzyme activity.
Simulation and analysis of a collisionless optical interconnection network (2002)

This article describes the simulation and analysis of a collisionless optical interconnection network with single protocol control. The optical fibre coupler has one shared control channel and N communication channels. Each network node has two communication modules, one for packet transmission/reception and the other for control channel access. We show by simulation that the system achieves a high performance and ensures high scalability.
Identification of the Second Heparin-Binding Domain in Human Complement Factor H (1998)

Complement factor H (fH) regulates activation of the alternative pathway of C, reducing the amount of C3b deposited on sialic acid-rich surfaces. Heparin binding has been used as a model for examining the sialic acid-binding characteristics of fH. We have previously shown that of the 20 short consensus repeat (SCR) modules of fH, SCR 7 contains an important heparin binding site, but other SCRs also play a role in heparin binding. To localize the other sites, we prepared recombinant truncated and SCR deletion mutants of fH and tested them by heparin-agarose affinity chromatography. The 5 C-terminal SCRs were found to contain a heparin binding site as an SCR 7 deletion mutant of the N terminal 15 SCRs did not bind heparin, but a construct consisting of SCRs 16-20 was shown to bind heparin. Double deletion of SCRs 7 and 20 from fH abrogated binding to heparin, indicating that SCR 20 contains a heparin binding site. This finding was confirmed with the observation that attachment of SCR 20 to a group of nonbinding SCRs produced a heparin-binding protein. A protein consisting of SCRs 19 and 20 did not bind heparin, whereas SCRs 18-20 did, indicating that, although SCR 20 contains a heparin binding site, at least two nonspecific adjacent SCRs are required. fH-related protein-3 (FHR-3) possesses an SCR homologous to SCR 7 of fH and bound heparin, whereas FHR-4, which lacks such an SCR, did not. Thus, fH contains two separate heparin binding sites, which are located in SCRs 7 and 20.
Ganglionated Plexi Ablation for Atrial Fibrillation (2012)

With an estimated prevalence of 0.4%~1% in the general population, atrial fibrillation (AF) is the most common cardiac arrhythmia encountered in clinical practice [1]. As an emerging technology, catheter ablation is becoming more and more important in the treatment of AF at present. In a sense, catheter ablation is more superior to the antiarrhythmic drug and surgery treatment, but this technology remains a challenge, because long-term success rate is low, most patients require repeat procedure and there is no established ablation method. The importance of the autonomic nervous system (ANS) in the initiation of AF has been proved in the early 1990s [2-4], and the ganglionated plexi (GP), found in epicardial fat pads, was subsequently shown to play a role in initiation and maintenance of AF [5, 6]. Studies have shown that chemical or electric stimulation of GP can initiate rapid firing from the pulmonary vein (PV) or PV-atrial junction, which is similar to the focal firing observed in patients with AF [7-9]. Moreover, several studies indicate that ablation of the major atrial GP can suppress the inducibility and maintenance of AF [9]. Therefore the GP ablation has received more and more attentions nowadays, and it promises to be a more superior ablation technology of AF. However, the long-term success rate of GP ablation is quite variable (40%~90%, approximately), and the reasons remain under investigate.
Synthesis of Quaternary Chalcogenide Nanocrystals: Stannite Cu<sub>2</sub>Zn<sub><i>x</i></sub>Sn<sub><i>y</i></sub>Se<sub>1+<i>x</i>+2<i>y</i></sub> (2010)

A successful synthesis of Cu(2)Zn(x)Sn(y)Se(1+x+2y) (CZTSe) nanoparticles is presented. Nearly monodisperse and highly faceted CZTSe nanoparticles were prepared through reaction of metal amino complexes with saturated solutions of selenium in trioctylphosphine at high temperature. High-resolution transmission electron microscopy and X-ray diffraction analysis showed the prepared nanocrystals to have the tetragonal Cu(2)ZnSnSe(4) crystallographic structure. Nanoscale-resolved electron energy loss spectroscopy images showed the presence of the four elements in each individual nanocrystal. Further analyses of the particles' chemical composition showed the nanocrystals to be consistently Zn- and Sn-poor.
Ion and Electron Distributions in the Boundary Layer of Hypersonic Vehicles for Chemical Non-Equilibrium Flow. Part 1. Aerodynamics and Numerical Results (1971)

Abstract : Flows over non-ablating hypersonic vehicles are considered when all electrons are produced by aerodynamic heating in the boundary layer. Detailed calculations of the ion and electron distributions are presented for a vehicle with a conical nose and a semivertex angle of 10 deg, for Mach numbers 8 and 10 at sea level. Except for a small region at the nose, the boundary layer is turbulent. Diffusion of electrons with respect to the ions and neutrals is considered and ambipolar diffusion is found to occur across most of the boundary layer only at large ionelectron densities.
Niosomal carriers enhance oral bioavailability of&nbsp;carvedilol: effects of bile salt-enriched vesicles and carrier surface charge&nbsp; (2015)

Carvedilol (CRV) is an antihypertensive drug with both alpha and beta receptor blocking activity used to preclude angina and cardiac arrhythmias. To overcome the low, variable oral bioavailability of CRV, niosomal formulations were prepared and characterized: plain niosomes (without bile salts), bile salt-enriched niosomes (bilosomes containing various percentages of sodium cholate or sodium taurocholate), and charged niosomes (negative, containing dicetyl phosphate and positive, containing hexadecyl trimethyl ammonium bromide). All formulations were characterized in terms of encapsulation efficiency, size, zeta potential, release profile, stability, and morphology. Various formulations were administered orally to ten groups of Wistar rats (n=6 per group). The plasma levels of CRV were measured by a validated high-performance liquid chromatography (HPLC) method and pharmacokinetic properties of different formulations were characterized. Contribution of lymphatic transport to the oral bioavailability of niosomes was also investigated using a chylomicron flow-blocking approach. Of the bile salt-enriched vesicles examined, bilosomes containing 20% sodium cholate (F2) and 30% sodium taurocholate (F5) appeared to give the greatest enhancement of intestinal absorption. The relative bioavailability of F2 and F5 formulations to the suspension was estimated to be 1.84 and 1.64, respectively. With regard to charged niosomes, the peak plasma concentrations (Cmax) of CRV for positively (F7) and negatively charged formulations (F10) were approximately 2.3- and 1.7-fold higher than after a suspension. Bioavailability studies also revealed a significant increase in extent of drug absorption from charged vesicles. Tissue histology revealed no signs of inflammation or damage. The study proved that the type and concentration of bile salts as well as carrier surface charge had great influences on oral bioavailability of niosomes. Blocking the lymphatic absorption pathway significantly reduced oral bioavailability of CRV niosomes. Overall twofold enhancement in bioavailability in comparison with drug suspension confers the potential of niosomes as suitable carriers for improved oral delivery of CRV.
Inhibition of rho kinase attenuates high flow induced pulmonary hypertension in rats (2007)

Background The RhoA/Rho kinase pathway may participate in the pathogenesis of hypoxia and monocrotaline induced pulmonary hypertension. This study tested whether RhoA/Rho kinase pathway is involved in the pathogenesis of high flow induced pulmonary hypertension in rats. Methods Male Wistar rats (4 weeks) were randomly divided into 4 shunt groups, 4 treated groups and 4 control groups. Shunt and treated groups underwent left common carotid artery/external jugular vein shunt operation. Control groups underwent sham operation. Treated groups received fasudil treatment and the others received same dose of saline. At weeks 1, 2, 4 and 8 of the study, right ventricular systolic pressure was measured and blood gases were analysed to calculate Qp/Qs. The weight ratio of right ventricle to left ventricle plus septum and the mean percentage of medial wall thickness in moderate sized pulmonary arteries were obtained. RhoA activity in pulmonary arteries was detected using Rho activity assay reagent. Rho kinase activity was quantified by the extent of MYPT1 phosphorylation with Western blot. Proliferating cells were evaluated using proliferating cell nuclear antigen immunohistological staining. Results Carotid artery/jugular vein shunt resulted in high pulmonary blood flow, both an acute and a chronic elevation of right ventricular systolic pressure, significant medial wall thickening characterized by smooth muscle cells proliferation, right ventricular hypertrophy and increased activation of RhoA and Rho kinase. Fasudil treatment lowered pulmonary artery systolic pressure, suppressed pulmonary artery smooth muscle cells proliferation, attenuated pulmonary artery medial wall thickening and inhibited right ventricular hypertrophy together with significant suppression of Rho kinase activity but not Rho activity. Conclusions Activated RhoA/Rho kinase pathway is associated with both the acute pulmonary vasoconstriction and the chronic pulmonary artery remodelling of high flow induced pulmonary hypertension. Fasudil treatment could improve pulmonary hypertension by inhibiting Rho kinase activity. Chin Med J 2007;120(1):22–29
Photodynamic therapy of rat bladder and urethra: evaluation of urinary and reproductive function after inducing protoporphyrin IX with 5‐aminolaevulinic acid (2000)

PDT of the urethra with ALA is relatively safe and carries few risks of inducing permanent urological complications.
Synthesis of Fluoranthene and its Derivatives (1949)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of Fluoranthene and its DerivativesE. Bergmann and Milton. OrchinCite this: J. Am. Chem. Soc. 1949, 71, 6, 1917–1918Publication Date (Print):June 1, 1949Publication History Published online1 May 2002Published inissue 1 June 1949https://pubs.acs.org/doi/10.1021/ja01174a005https://doi.org/10.1021/ja01174a005research-articleACS PublicationsRequest reuse permissionsArticle Views186Altmetric-Citations11LEARN 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
AudioCubes (2008)

AudioCubes is a novel tangible user interface allowing any person interested by sound design such as sound creators, and music trainers to intuitively explore and create dynamically changing sound. A new sound is created by manipulating distributed cube tangible user interface that can be coupled wirelessly by locating them in the interaction range of each other on a table. At any time, a sound processing network combines operational properties of AudioCubes, such as location on a plane or in space, movement, arrangement with other cubes, and layout. Sound algorithm parameters and the configuration of the sound processing network can be changed simultaneously, allowing a fast and convenient exploration of sound creation space that creates a new interaction technique for creating sounds.
Empire and Multitude (2005)

Michael Hardt and Antonio Negri have chosen to call the current global system "Empire."* Their choice of that term is intended to distinguish its essential constituent characteristics from those that define "imperialism." Imperialism in this definition is reduced to its strictly political dimension, i.e., the extension of the formal power of a state beyond its own borders, thereby confusing imperialism with colonialism. Colonialism therefore no longer exists, neither does imperialism. This hollow proposition panders to the common American ideological discourse according to which the United States, in contrast to the European states, never aspired to form a colonial empire for its own benefit and thus could never have been "imperialist" (and thus is not today anymore than yesterday, as Bush reminds us). The historical materialist tradition proposes a very different analysis of the modern world, centered on identification of the requirements for the accumulation of capital, particularly of its dominant segments. Taken to the global level, this analysis thus makes it possible to discover the mechanisms that produce the polarization of wealth and power and construct the political economy of imperialismThis article can also be found at the Monthly Review website, where most recent articles are published in full.Click here to purchase a PDF version of this article at the Monthly Review website.
Microscopic model of ferroelectricity in stress-free PbTiO3 ultrathin films (2000)

The ground-state polarization of PbTiO3 thin films is studied using a microscopic effective Hamiltonian with parameters obtained from first-principles calculations. Under short-circuit electrical boundary conditions, (001) films with thickness as low as three unit cells are found to have a perpendicularly polarized ferroelectric ground state with significant enhancement of the polarization at the surface.
An Interoperable Access Control Framework for Diverse IoT Platforms Based on OAuth and Role (2019)

Due to the rapid development of Internet of Things (IoT), IoT platforms that can provide common functions for things are becoming increasingly important. However, access control frameworks in diverse IoT platforms have been developed for individual security goals, designs, and technologies. In particular, current OAuth-based access control frameworks that are widely used in IoT research have not been providing interoperability among IoT platforms even though sharing resources and services is a critical issue for IoT platforms. Therefore, we analyze the main requirements for an IoT access control framework to properly design our framework and propose an interoperable access control framework based on OAuth 2.0 and Role. Our approach describes a new extended authorization grant flow to issue an Interoperable Access Token (IAT) that has a global access scope across IoT platforms using multiple pairs of clients' credentials. With the IAT and proposed framework, we can access client-specific domains in heterogeneous IoT platforms, then valuable resources (e.g., data and services) in the domains can be accessed by validating the roles, which will greatly simplify permission management. Furthermore, IAT supports a simple token management (e.g., token issuance, refreshing, and revocation) by managing only one token for diverse IoT platforms. In addition, we implement our interoperable access control framework on Mobius and FIWARE, which are promising open-source IoT platforms, and test an interoperability scenario to demonstrate our approach with the implementation. Furthermore, the proposed framework is compared with other IoT access control approaches based on the selected requirements in this paper.
Interrupt Synchronization Lock for Real-time Operating Systems (2006)

One of the fundamental design decisions in an operating system is how to handle coordination between synchronous and asynchronous event handlers, especially handling the asynchronous interrupts. Interrupt synchronization is critical for real-time operating systems to increase system performance and reduce the interrupt response time. This paper proposes an interrupt synchronization lock (ISLock) technology to synchronize the interrupts without masking. Experimental evaluation shows the ISLock improves the interrupt response. We present results for a real-time embedded operating system, although the technique is applicable to both embedded and general operating systems that rely on interrupts to respond to asynchronous events.