gebhart/patrepeval huggingface dataset:
A Mesomorphic Blend Based on the Solid-State Complexes of Polymers with Surfactants (1999)

ADVERTISEMENT RETURN TO ISSUEPREVNoteA Mesomorphic Blend Based on the Solid-State Complexes of Polymers with SurfactantsMing-Siao Hsiao, Hsin-Lung Chen, and Der-Jang LiawView Author Information Department of Chemical Engineering, National Tsing Hua University, Hsin-Chu, Taiwan 30043, R. O. C., and Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan 10607, R. O. C. Cite this: Macromolecules 2000, 33, 1, 221–224Publication Date (Web):December 16, 1999Publication History Received9 July 1999Published online16 December 1999Published inissue 1 January 2000https://pubs.acs.org/doi/10.1021/ma991111phttps://doi.org/10.1021/ma991111pbrief-reportACS PublicationsCopyright © 2000 American Chemical SocietyRequest reuse permissionsArticle Views146Altmetric-Citations10LEARN 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 SUBJECTS:Chemical structure,Layers,Polyethylenimine,Polymers,X-ray scattering Get e-Alerts
Nonlysosomal processing of cell-surface heparan sulfate proteoglycans. Studies of I-cells and NH4Cl-treated normal cells. (1987)

The metabolism of cell-associated proteoglycans, labeled in the glycosaminoglycan portion with 35SO2-4, was studied in normal skin fibroblasts (SL66 cells), NH4Cl-treated SL66 fibroblasts, and in I-cells derived from patients with mucolipidosis II. Kinetic data from label-chase experiments and gel filtration analysis of the molecular weight distribution of the radiolabeled glycosaminoglycans indicated that I-cells and NH4Cl-treated normal fibroblasts (a) internalize cell surface proteoglycans, (b) remove glycosaminoglycan chains from proteoglycan core proteins, and (c) degrade heparan sulfate glycosaminoglycan chains via an endoglycosidic activity. These processes occur with rates comparable to those in normal fibroblasts. The data are consistent with the hypothesis that the glycosaminoglycan chains of cell-surface proteoglycans are separated from the protein cores in a nonlysosomal compartment prior to the transport of these chains to lysosomes for degradation. These observations also raise the possibility that this early step in separation of glycosaminoglycan chains from protein cores may serve to regulate the levels of glycosaminoglycan-free core protein observed in various cells.
Quasi-Dimensional Computer Simulation of the Turbocharged Spark-Ignition Engine and its Use for 2- and 4-Valve Engine Matching Studies (1991)

&lt;div class="htmlview paragraph"&gt;A quasi-dimensional computer simulation of the turbocharged spark-ignition engine has been developed in order to study system performance as various design parameters and operating conditions are varied. The simulation is of the “filling and emptying” type. Quasi-steady flow models of the compressor, intercooler, manifolds, turbine, wastegate, and ducting are coupled with a multi-cylinder engine model where each cylinder undergoes the same thermodynamic cycle. A turbulent entrainment model of the combustion process is used, thus allowing for studies of the effects of various combustion chamber shapes and turbulence parameters on cylinder pressure, temperature, NOx emissions and overall engine performance. Valve open areas are determined either based on user supplied valve lift data or using polydyne-generated cam profiles which allow for variable valve timing studies. A detailed friction model is used which predicts rubbing losses from the crankshaft, reciprocating and valvetrain components and auxiliary losses from engine accessories. The simulation has been calibrated and validated against experimental data from a 1.1 liter engine. It has been shown that the model is capable of predicting combustion process parameters as well as total system performance over the entire operating range. Further, to demonstrate the utility of the simulation, a series of matching calculations has been carried out for a new 1.4 liter engine. The benefits of using a 4-valve, fast burn combustion chamber design on high-speed performance have been demonstrated. Operation of the 4-valve engine with only one of the intake valves active has also been investigated as a strategy for increasing low speed torque.&lt;/div&gt;
High Brilliance Fast Scintillator for Neutron Detection and Imaging (2020)

High data rate detectors are needed for neutron reflectometer instruments and diffractometers require high spatial resolution detectors. Scintillators are the predominant material for the neutron converters in single crystal detector instruments, with GS20 being the most common choice. Here we report on the development and properties of Ce <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> activated <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sup> LiI crystal scintillator grown with the aim of minimizing the decay time to support the high data rate applications while providing high brightness and high efficiency compared to GS20. The LiI crystals doped with Ce <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> were grown by the vertical Bridgman technique using 95%-enriched <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sup> Li. It demonstrates two decay components with the primary decay of 43- 50 ns (93%) and the secondary decay of ~300 ns (7%), significantly faster than the Eu <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2+</sup> doped <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sup> LiI decay (~1 μs). Light yield for thermal neutron interactions was measured to be ~18,500 photons/interaction, which is a factor of 3 higher than the GS20. The X-ray excited radioluminescence spectrum of Ce <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> activator in LiI at room temperature shows three well-defined emission bands in the range of 400 to 700 nm, peaking at 430, 474, and 590 nm, which are due to 4f-5d transitions of Ce, The crystals also demonstrate high gamma equivalent energy (GEE) of nearly 3 MeV, thereby permitting effective pulse height neutron/gamma discrimination
MIMO/HSDPA with fast fading and mobility: capacity and coverage study (2005)

A semi analytical model and framework for the estimation of MIMO/HSDPA cell capacity for UMTS is presented. The model includes the effect of fast fading, mobility and coverage on the capacity. An algorithm to select the number of HS-DSCH codes allocated to a given user and the associated modulation and coding schemes is proposed. The capacity model is used to compare MIMO systems and provide insight on expected performance and capacity. Results indicate that adaptive MIMO in the sense of number of activated antennas at the transmitter increases capacity and that adaptive space time coding outperforms adaptive BLAST techniques for the explored scenarios. The effect of coverage on MIMO/HSDPA cell capacity is also reported.
Supplementary Figure 6 from Discovery of a Mutant-Selective Covalent Inhibitor of EGFR that Overcomes T790M-Mediated Resistance in NSCLC (2023)

&lt;p&gt;Supplementary Figure 6 - PDF file 112K, Impact of CO-1686, erlotinib and afatinib administration on mouse body-weight&lt;/p&gt;
Frequency Domain Channel-Dependent Scheduling Employing an Adaptive Transmission Bandwidth for Pilot Channel in Uplink Single-Carrier-FDMA Radio Access (2006)

This paper proposes frequency and time domain channel-dependent scheduling employing an adaptive transmission bandwidth for the pilot channel for channel quality indication (CQI) measurement in the uplink single-carrier (SC)-FDMA radio access. In the proposed scheme, a high multiuser diversity effect due to frequency domain channel-dependent scheduling is gained by assigning a wide pilot transmission bandwidth to user equipments (UEs) near a cell site, whereas the influence of the CQI measurement error is mitigated by assigning a narrow pilot transmission bandwidth to UEs near the cell boundary at the cost of utilizing multiuser diversity in the frequency domain. System simulation results elucidate that the cell throughput using the adaptive pilot transmission bandwidth with the predetermined threshold, TH <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">SINR</sub> of -6 dB is increased by approximately 600 kbps compared to that using a fixed 1.25-MHz pilot transmission bandwidth, i.e., only time domain channel-dependent scheduling, owing to an increasing multiuser diversity effect in the frequency domain. We also show that the user throughput using the adaptive pilot channel transmission bandwidth scheme at a 5% cumulative distribution function is increased by approximately 35 and 30% compared to that using a 5-MHz transmission for 16 and 32 UEs per cell, respectively, for the inter-site distance of 500 m
A model for simultaneous encoding of "where" and "what" information in prefrontal cortex (2009)

Introduction In contrast to the classical theory of segregated cortical representation of information regarding the identity (what) and location (where) of a visual object, recent experimental results indicate that neurons in the primate prefrontal cortex convey combined information about both [1]. Moreover, this information was found to be maintained after stimulus removal, suggesting that these neurons contribute to working memory. To date, the mechanisms that underlie this integrated representation are unknown. In this study, we propose a model of a cortical network with biologically realistic properties that demonstrates a combined representation of stimulus identity and location.
Human periosteal-derived cell expansion in a perfusion bioreactor system: proliferation, differentiation and extracellular matrix formation (2014)

Perfusion bioreactor systems have shown to be a valuable tool for the in vitro development of three-dimensional (3D) cell-carrier constructs. Their use for cell expansion, however, has been much less explored. Since maintenance of the initial cell phenotype is essential in this process, it is imperative to obtain insight into the bioreactor-related variables determining cell fate. Therefore, this study investigated the influence of fluid flow-induced shear stress on the proliferation, differentiation and matrix deposition of human periosteal-derived cells in the absence of additional differentiation-inducing stimuli; 120 000 cells were seeded on additive manufactured 3D Ti6Al4V scaffolds and cultured for up to 28 days at different flow rates in the range 0.04-6 ml/min. DNA measurements showed, on average, a three-fold increase in cell content for all perfused conditions in comparison to static controls, whereas the magnitude of the flow rate did not have an influence. Contrast-enhanced nanofocus X-ray computed tomography showed substantial formation of an engineered neotissue in all perfused conditions, resulting in a filling (up to 70%) of the total internal void volume, and no flow rate-dependent differences were observed. The expression of key osteogenic markers, such as RunX2, OCN, OPN and Col1, did not show any significant changes in comparison to static controls after 28 days of culture, with the exception of OSX at high flow rates. We therefore concluded that, in the absence of additional osteogenic stimuli, the investigated perfusion conditions increased cell proliferation but did not significantly enhance osteogenic differentiation, thus allowing for this process to be used for cell expansion. Copyright © 2014 John Wiley & Sons, Ltd.
Smart phase-only micromirror array fabricated by standard CMOS process (2002)

Smart, phase-only modulation micromirror arrays have been implemented through a commercial CMOS service. The novel, 2-dimensional array of deflectable micromirrors with integrated CMOS switching circuits and piezoresistive deflection sensors on flexures is presented in this paper. The individual mirror pixels are capable of modulating light in the visible to near-infrared spectrum by piston-like movement of a trampoline-type suspended micromirror driven by thermal multi-morph actuators. A flip chip bonding technology is used to integrate the micromirror array with a microlens array to increase the optical fill factor of the hybrid system. Finite element analysis is used to model electro-thermo-mechanical behavior of the micromirror. A 2.5 mrad beam steering angle was successfully demonstrated.
An Adaptive Link Layer for Range Diversity in Multi-Radio Mobile Sensor Networks (2009)

An important challenge in mobile sensor networks is to enable energy-efficient communication over a diversity of distances while being robust to wireless effects caused by node mobility. In this paper, we argue that the pairing of two complementary radios with heterogeneous range characteristics enables greater range diversity at lower energy cost than a single radio. We make three contributions towards the design of such multi-radio mobile sensor systems. First, we present the design of a novel reinforcement learning-based link layer algorithm that continually learns channel characteristics and dynamically decides when to switch between radios. Second, we describe a simple protocol that translates the benefits of the adaptive link layer into practice in an energy-efficient manner. Third, we present the design of Arthropod, a mote-class sensor platform that combines two such heterogeneous radios (XE1205 and CC2420) and our implementation of the Q-learning based switching protocol in TinyOS 2.0. Using experiments conducted in a variety of urban and forested environments, we show that our system achieves up to 52% energy gains over a single radio system.
Gyrator video filter IC with automatic tuning (1980)

A single-chip gyrator filter for separating the components of the video signal in a TV receiver is described which is suitable for mass production in a standard bipolar process (f/SUB T//spl ap/400 MHz). The 11 mm/SUP 2/ filter chip operates at frequencies up to 10 MHz, requires no tuning or alignment and has Q-factors which are stable with temperature. The IC contains an automatic tuning system which tunes the five resonators of the filter by aligning an auxiliary gyrator resonator with the crystal oscillator present in the color decoder of a TV receiver. Problems of matching the frequencies of the individual gyrator resonators are discussed, showing how alignment accuracy of 0.5 percent can be obtained when resistivities and specific capacitances have production spreads of at least 10 percent. Various gyrator circuit configurations are given which minimize the circuit complexity and, hence, the chip area. Computer aided design techniques for the filter using geometrically scaled models and macromodeling are presented and it is shown how a complete simulation of the chip led to a significant improvement in bandstop performance. Finally, the measured responses are presented and the filter performance is discussed in the light of present-day requirements.
Hyperplasia–adenoma sequence in pituitary tumorigenesis related to aryl hydrocarbon receptor interacting protein gene mutation (2011)

Mutations of the aryl hydrocarbon receptor interacting protein (AIP) gene are associated with pituitary adenomas that usually occur as familial isolated pituitary adenomas (FIPA). Detailed pathological and tumor genetic data on AIP mutation-related pituitary adenomas are not sufficient. Non-identical twin females presented as adolescents to the emergency department with severe progressive headache caused by large pituitary macroadenomas require emergency neurosurgery; one patient had incipient pituitary apoplexy. Post-surgically, the patients were found to have silent somatotrope adenomas on pathological examination. Furthermore, the light microscopic, immunohistochemical, and electron microscopic studies demonstrated tumors of virtually identical characteristics. The adenomas were accompanied by multiple areas of pituitary hyperplasia, which stained positively for GH, indicating somatotrope hyperplasia. Genetic analyses of the FIPA kindred revealed a novel E216X mutation of the AIP gene, which was present in both the affected patients and the unaffected father. Molecular analysis of surgical specimens revealed loss of heterozygosity (LOH) in the adenoma but showed that LOH was not present in the hyperplastic pituitary tissue from either patient. AIP immunostaining confirmed normal staining in the hyperplastic tissue and decreased staining in the adenoma in the tumors from both patients. These results demonstrate that patients with AIP germline mutation can present with silent somatotrope pituitary adenomas. The finding of somatotrope hyperplasia unaccompanied by AIP LOH suggests that LOH at the AIP locus might be a late event in a potential progression from hyperplastic to adenomatous tissue.
SARS-CoV-2 neutralizing human antibodies protect against lower respiratory tract disease in a hamster model (2020)

ABSTRACT Effective clinical intervention strategies for COVID-19 are urgently needed. Although several clinical trials have evaluated the use of convalescent plasma containing virus-neutralizing antibodies, the effectiveness has not been proven. We show that hamsters treated with a high dose of human convalescent plasma or a monoclonal antibody were protected against weight loss showing reduced pneumonia and pulmonary virus replication compared to control animals. However, a ten-fold lower dose of convalescent plasma showed no protective effect. Thus, variable and relatively low levels of virus neutralizing antibodies in convalescent plasma may limit their use for effective antiviral therapy, favouring concentrated, purified (monoclonal) antibodies.
Sensitivity of  Listeria monocytogenes  Scott A to Nisin and Diacetyl after Starvation in Sodium Phosphate Buffered Saline (2009)

This study determined the effectiveness of nisin and diacetyl to inhibit the growth of Listeria monocytogenes (Lm) under normal cell cultivation and starvation conditions in sodium phosphate buffered saline (SPBS). Inhibitory effects of nisin at 320 or 1000 AU/mL or diacetyl at 0.25%, 0.50%, or 1.0% and combinations on Lm in brain heart infusion (BHI), SPBS, and potassium phosphate buffered saline (KPBS) were determined on BHIA (nonselective medium) and PALCAM (selective medium) agar at 0 and 2 h posttreatment after 0, 7, 14, and 21 d of starvation. Two-hour exposure to 1000 AU/mL nisin and 1% diacetyl gave 8 to 9 log CFU/mL reductions of nonstarved control cells regardless of plating medium after suspension in BHI, SPBS, or KPBS with inhibitors, but with 7 d starved cells a 2-h exposure reduced Lm levels to less than the detection limit (20 CFU/mL). Cells starved in SPBS for 14 or 21 d then suspended in BHI plus inhibitors were reduced 5 to 6 log CFU/mL. SPBS suspensions on days 14 and 21 were reduced 4 log CFU/mL and 2 to 3 log CFU/mL, respectively, on BHI media and 5 to 6 log CFU/mL and 2 to 3 log CFU/mL on PALCAM. Recovery was the same regardless of plating medium, indicating treated cells were killed and not merely injured by the nisin and diacetyl treatments. This study showed that nisin and diacetyl combinations were more effective on Lm than when either chemical was used separately in BHI, SPBS, or KPBS. Lm cells starved for 14 or more days were much more resistant to the nisin and diacetyl combinations than were nonstarved control cells.
Quantification of myocardial perfusion using free‐breathing MRI and prospective slice tracking (2008)

Quantification of myocardial perfusion using first-pass magnetic resonance imaging (MRI) is hampered by respiratory motion of the heart. Prospective slice tracking (PST) potentially overcomes this problem, and may provide an attractive alternative or supplement to current breath-hold techniques. This study demonstrates the feasibility of patient-adapted 3D PST on a 3.0 Tesla MR system. Eight patients underwent free-breathing studies of myocardial perfusion, simultaneously collecting data with and without PST. On average, PST reduced residual in-plane motion by a factor of 2, compared to the noncorrected images, resulting in a fourfold improvement of perfusion measurements. In addition, a comparison of perfusion measurements performed with and without PST showed that through-plane motion can contaminate measurements of myocardial perfusion. However, the quality of the navigator echoes on this field strength constituted a major source of error and needs further improvement to increase the accuracy and robustness of the method.
Prediction of Lifted Diffusion Flames by using the Scalar Field Variable. (1999)

By incorporating the scalar field variable, G, into the numerical method with the flame sheet model, one of reaction models of simulation of diffusion flames, we have developed a new calculation method of lifted flames. The present method can deal with the flame instabilities including the blowoff, liftoff, and extinction, while the conventional flame sheet model cannot deal with them, because scalar quantities are decided uniquely against the mixture fraction in that model. The burning velocity included in the production term of the equation of scalar field variable, G, is formulated as a function of the scalar dissipation rate. This makes the treatment of the flame instabilities possible. The frozen scalar structure is applied to the upstream of the intersection of isolines of the stoichiometric line and G=1, the transitional structure expressed by a weight function based on the scalar field variable, G, to a small zone behind the intersection, and the diffusion flame structure to the downstream region. Numerical results of a reactive two dimensional mixing layer by the present method are in reasonable agreement with results of direct numerical simulations with a finite reaction rate and irreversible one step reaction model.
YANG Data Model for Slice Policy (2021)

A slice policy is a policy construct that enables instantiation of
mechanisms in support of IETF network slice specific control and data
plane behaviors on select topological elements. This document defines
a YANG data model for the management of slice policies on slice policy
capable nodes and controllers in IP/MPLS networks.
Excitonic enhancement of nonradiative energy transfer to bulk silicon with the hybridization of cascaded quantum dots (2013)

We report enhanced sensitization of silicon through nonradiative energy transfer (NRET) of the excitons in an energy-gradient structure composed of a cascaded bilayer of green- and red-emitting CdTe quantum dots (QDs) on bulk silicon. Here NRET dynamics were systematically investigated comparatively for the cascaded energy-gradient and mono-dispersed QD structures at room temperature. We show experimentally that NRET from the QD layer into silicon is enhanced by 40% in the case of an energy-gradient cascaded structure as compared to the mono-dispersed structures, which is in agreement with the theoretical analysis based on the excited state population-depopulation dynamics of the QDs.