gebhart/patrepeval huggingface dataset:
Characterization of silicon dioxide films deposited at low pressure and temperature in a helicon diffusion reactor (1993)

Silicon dioxide films have been deposited at low pressure (a few millitorr) and low substrate temperature (&lt;200 °C) by oxygen/silane helicon diffusion radio frequency plasmas. High deposition rates (20–80 nm/min) are achieved at 800 W rf source power. The effect of the oxygen/silane flow rate ratio (R) on the film properties has been investigated: characterization of the deposited films has been carried out by in situ ellipsometry, ex situ Fourier transform infrared spectroscopy, Rutherford backscattering, x-ray photoelectron spectroscopy (XPS), and chemical etch rate measurements (P etch) and the results have been compared to thermally grown oxide. The deposition kinetics has a great effect on the internal film structure: for films presenting a good stoichiometry ([O]/[Si]≥1.95 for R≥3), a decrease in the deposition rate is accompanied by a decrease of the refractive index, P-etch rate and XPS line width and by an increase of the Si–O stretching peak frequency toward the thermal oxide respective values. A sufficient oxygen/silane flow rate ratio (R=10) leads to stoichiometric films which exhibit good optical properties. Small differences in the P-etch rate, XPS linewidth, and infrared stretching peak frequency are still observed between our stoichiometric plasma deposited film and a thermally grown oxide film.
Noninvasive Evaluation of Hepatic Fibrosis Using Serum Fibrotic Markers, Transient Elastography (FibroScan) and Real-Time Tissue Elastography (2008)

Serum fibrotic markers and FibroScan are useful for distinguishing liver cirrhosis (F4) from chronic hepatitis (F1-F3). In addition, real-time tissue elastography is a novel and promising method to determine the stage of hepatic fibrosis.
INTERSYSTEM CROSSING IN KETONES (1968)

No fluorescence has ever been observed from any aromatic ketone in the acetophenone and benzophenone series. It is presumed that a highly efficient intersystem crossing mechanism must exist between the lowest $^{1}n^{\\pi^\\ast}$ state and the triplet manifold. The presumed rate of this process is anomalously high. Observables such as comparative line widths, and the variation of the phosphorescence lifetime with temperature in the range of $4.2^{\\circ} K$ provide new information on the intersystem crossing mechanism is condensed media. Experimental results on linewidths and temperature effects will be presented in relation to a number of ketones representing a variety of electronic structural types.
Convolutional coding for resilient packet header compression (2005)

This paper proposes a system using convolutional codes to mitigate error propagation in packet header compression. Convolutional codes are a class of forward error correction (FEC) codes, and their use is motivated because on uni-directional links loss of even one packet can render subsequent packets useless. A combination of two interleavers is used to address channel memory and increase the power of the code, and the optimum yet computationally efficient Viterbi algorithm is used for decoding at the receiver. Simulation results demonstrate the advantages of the proposed scheme.
Critical Analysis of the Impact of Glottal Features in the Classification of Clinical Depression in Speech (2007)

The motivation for this work is in an attempt to rectify the current lack of objective tools for clinical analysis of emotional disorders. This study involves the examination of a large breadth of objectively measurable features for use in discriminating depressed speech. Analysis is based on features related to prosodics, the vocal tract, and parameters extracted directly from the glottal waveform. Discrimination of the depressed speech was based on a feature selection strategy utilizing the following combinations of feature domains: prosodic measures alone, prosodic and vocal tract measures, prosodic and glottal measures, and all three domains. The combination of glottal and prosodic features produced better discrimination overall than the combination of prosodic and vocal tract features. Analysis of discriminating feature sets used in the study reflect a clear indication that glottal descriptors are vital components of vocal affect analysis.
ChemInform Abstract: Synthesis of Some Fluorine‐Containing Pyridinealdoximes of Potential Use for the Treatment of Organophosphorus Nerve‐Agent Poisoning. (2011)

Abstract A series of fluorine‐containing pyridinealdoximes is synthesized and evaluated for their potential for treating nerve agents poisoning.
The essential oil composition of the roots and rhizomes of Siphonochilus aethiopicus (2002)

The composition of the essential oil obtained through hydrodistillation is reported for the roots and rhizomes of Siphonochilus aethiopicus. The major compounds in both the roots and the rhizomes are 1,8-cineole, (E)-β-ocimene, cis-alloocimene, together with the recently reported furanoterpenoid (4aα,5β,8α)-3,5,8a-trimethyl-4,4a,9-tetrahydo-naphtho[2,3-b]-furan-8(5H)-one which is the major compound in both plant organs. The roots and rhizomes are virtually identical in composition and provide a chemical rationale to promote plant part substitution as a method to conserve this endangered South African medicinal plant.
New fractures after vertebroplasty: adjacent fractures occur significantly sooner. (2006)

These data demonstrate an association between vertebroplasty and new vertebral fractures. Specifically, following vertebroplasty, patients are at increased risk of new-onset adjacent-level fractures and, when these fractures occur, they occur sooner than non-adjacent level fractures.
DNA Duplex-Based Fluorescence Probes/Sensors Using Monomer-Excimer Switching (2008)

In this review, we report DNA duplex-based fluorescence probes/sensors using pyrene monomer-excimer switching. The review mainly comprises two topics: 1) excimer-monomer switching molecular beacons (EMS-MB) and 2) monomer-excimer switching sensors based on the structural motif of antibodies. The EMS-MBs have two pyrene fluorophores connected both at 3' and 5' ends of a single-stranded oligonucleotide. Emission switching occurs from excimer to monomer accompanying isoemissive points when the probes hybridized with target DNAs. The isoemissive points indicate the presence of only two fluorescent species, nonhybridized and hybridized probes in the mixtures, and thereby unambiguous detection of the targets is available. The probes can detect target 19-mer DNAs and can discriminate the targets from their single-nucleotide mismatches at 1 nM concentration. Furthermore, the EMS-MBs have been recently applied to kinetic study for RNase H activity by Tan et al. The structures and emission-switching properties of the EMS-MBs encourage us to develop a new class of fluorescent sensors based on the structural motif of antibodies. The sensors consist of three functional regions, benzo-15-crown-5 ether (or per-O-methylated beta-cyclodextrin), DNA, and pyrene as guest-binding, dimerizing, and sensing sites, respectively. The crown- and CD-modified sensors can detect potassium cation and porphyrin derivatives, respectively, by monomer-excimer emission switching.
Crystal Engineering. A Textbook. By Gautam R. Desiraju, Jagadese J. Vittal and Arunachalam Ramanan. (2012)

World Scientific Publishing, Singapore, 2011. 232 pp., softcover, € 99.00.—ISBN 978-9814338752
Thermal Conductivity and Contact Resistance of Compressed Gas Diffusion Layer of PEM Fuel Cell (2008)

Abstract This paper discusses the effect of compression pressure on the mechanical and thermal properties of gas diffusion layers (GDL). The stress–strain curve of the GDL revealed one nonlinear and two piecewise linear regions within the compression pressure range of 0–5.5 MPa. The thermal conductivity of the compressed GDL seems to be independent of the compression pressure and was determined to be 1.18 ± 0.11 W m –1 K –1 at room temperature. The thermal contact resistance between the GDL and graphite was evaluated by augmenting experiments with computer modelling. The thermal contact resistance decreased nonlinearly with increasing compression pressure. According to the results here, the thermal bulk resistance of the GDL is comparable to the thermal contact resistance between the GDL and graphite. A simple one‐dimensional model predicted a temperature drop of 1.7–4.4 °C across the GDL and catalyst layer depending on compression pressures.
354. Stereospecificity in thermal elimination reactions. Part III. The pyrolysis of (–)-menthyl benzoate (1953)

D. H. R. Barton, A. J. Head and R. J. Williams, J. Chem. Soc., 1953, 1715 DOI: 10.1039/JR9530001715
Cholesterol in Childhood (1998)

This Policy Statement was retired January 2006. This updated statement reviews the scientific justification for the recommendations of dietary changes in all healthy children (a population approach) and a strategy to identify and treat children who are at highest risk for the development of accelerated atherosclerosis in early adult life (an individualized approach). Although the precise fraction of risk for future coronary heart disease conveyed by elevated cholesterol levels in childhood is unknown, clear epidemiologic and experimental evidence indicates that the risk is significant. Diet changes that lower fat, saturated fat, and cholesterol intake in children and adolescents can be applied safely and acceptably, resulting in improved plasma lipid profiles that, if carried into adult life, have the potential to reduce atherosclerotic vascular disease.
A moored ‘surface-following’ buoy for spectral wind measurements with satellite and VHF data telemetry (1994)

Discusses the development of a Sonic Buoy. The high quality of the results from the SWALES deployment vindicates the decision to develop the Sonic Buoy. The relation between the calculated wind stress and wind speed is much more clearly defined than in previous ship-based measurements. On the technical side, the buoy design has been proved with respect to survivability, and the redundancy built into the data logging and telemetry has proved its worth.
Uracil Derivatives and Related Compounds. V. Alkyluracil Derivatives. (1958)

Various kinds of 5, 6-dialkyl-2-thiouracils, 5, 6-dialkyluracils, and 3, 5, 6-trialkyluracils (alkyl : CH3, C2H5, C3H7, C4H9, iso-C4H9, C5H11, iso-C5H11), which were analogous with barbital in their chemical structures, were synthesized systematically, and relationship between pharmacological action and chemical structure was investigated. The compounds of this series showed sedative rather than analgesic action, and 3, 6, 5-trialkyluracils (R3, R5 : C4H9, R6 : CH3) showed a comparatively strong sedative action.
Optimising skin and coat condition in the dog (1999)

Simple Summary: Lameness is a big issue within UK dairy herds that can lead to significant welfare and financial implications.Early detection and treatment can result in a better cure of this painful condition.Cows enjoy grooming each other and will use automatic brushes to groom themselves.However, grooming is a luxury behaviour that is performed if everything else is fine with the cow.Lame cows may use brushes less because it could be painful to be on their feet.This study aimed to assess if the possibility of monitoring automated brush use within a loose-housed dairy herd could aid in the early identification of lameness.This study found that if accurate monitoring of individuals' brush use (duration per visit to a brush) could be collected, then this could act as an indicator for lameness.This information could then be utilised on the farm to allow prompt identification of the individual(s) for direct assessment, which in turn allows for prompt action to be taken with the aim of improved outcomes for the cow(s) and the farm.
Protein adhesion regulated by the nanoscale surface conformation (2012)

Protein adhesion and adsorption behaviors vary in response to variations in surface wettability; however, few reports have examined the dependence of such behaviors on variations in the surface molecular conformations. This study examines the degree to which molecular disorder at the surface of a surface-modified hydrocarbon chain monolayer regulates protein adhesion. Octadecyltrichlorosilane (OTS) molecules were deposited onto silicon wafers at two temperatures, 5 °C or 55 °C, to prepare two OTS surfaces with different degrees of molecular disorder. Atomic force microscopy (AFM) was used to evaluate the nanoscale adhesion force between proteins and the two types of OTS monolayers during a short contact time (<1 s). Bovine serum albumin (BSA) and human fibrinogen (HF) adhered more strongly to the disordered than to the ordered OTS monolayer. The adhesion strength at longer contact times (30 s–90 min) was evaluated by investigating the resistance of proteins on the OTS monolayer to detachment by washing. The magnitude of the resistance could be predicted from the topologies of the monolayers, as determined by AFM, after the adsorption of proteins and the subsequent washing experiments. After a 90 min adsorption period, BSA displayed a higher resistance to detachment from the disordered OTS monolayer than from the ordered OTS monolayer. HF displayed a higher resistance to detachment from the disordered OTS monolayer for only very short adsorption times of less than 1 min. The results suggest that the proteins altered their adhesion onto monolayers with different OTS conformations and that different adsorption times were required for each protein to present the different degrees of adhesion.
Polarization spectroscopy in analytical measurements (1988)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Edward S. Yeung; Polarization spectroscopy in analytical measurements. AIP Conf. Proc. 1 October 1988; 172 (1): 764–769. https://doi.org/10.1063/1.37479 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
Interleukine-10: facteur favorisant l'échappement d'une tumeur à la surveillance immunitaire ? ou facteur favorisant son rejet ? (1995)

In terleukin e 10 : fa cteur fa vorisant l' chappement d' une tumeur la surveillance immunitaire ? ou fa cteur fa vorisant son rejet ?
Einleitung — Abgrenzung des Themas (1973)

Schwefel, eines der wenigen Elemente, die in der Natur in freiem Zustand vorkommen, wird heute größtenteils nach dem Frasch-Verfahren gewonnen [1]. Weitere Rohstoffe zur Herstellung elementaren Schwefels sind vor allem sulfidische Erze und in steigendem Maße Schwefelwasserstoff, der u.a. bei Crack- und Pyrolyseprozessen sowie in manchen Erdgasen anfällt und nach dem neueren Claus-Verfahren zu Schwefel oxydiert wird (s. Lit. [2], dort Zugang zu weiterer Literatur).
Canonical properties of optical-design modules (1975)

Modules are conceived as building blocks in formulating optical designs with certain useful properties. This paper provides necessary and sufficient conditions for successfully combining (coupling) modules to form such a design system. Canonical ray tracing is defined, and canonical versions of aberration coefficients are derived. These are used to obtain equations for zero values of third-order-monochromatic and primary-chromatic-aberration coefficients. Their utilization in practical problems in optical design is illustrated.
The relationship between plasma soluble receptor tyrosine kinase Mer/Tyro3 and acute coronary syndrome (2013)

Objective
To investigate the concentrations of plasma Gas6 and its receptor in acute coronary syndrome patients and their dynamic changes after PCI.


Methods
In this case control study,we enrolled 66 ACS patients[(63.5±14.5) years age,40 males and 26 females] and 42 age and gender matched stable coronary heart disease patients as control group[(60.8±18.3) years age,23 males,19 females].All patients came from cardiovascular center of People′s hospital,Peking University.Blood samples were collected before PCI and 1 h,4 h,24 h after PCIin ACS group.The plasma Gas6,s Axl,s Mer,sTyro3,thrombin-antithrombin complex (TAT) concentrations were tested by ELISA kits.Data were compared by Mann-Whitney U test beteween the two groups.Their correlation with clinical indices and TAT were analyzed by.Spearman′s rank correlation test.


Results
Both the concentrantions of s Mer and s Tyro3 were significantly higher in ACS groups than those in the control group. (sMer:median 28.02μg/L,95% CI 14.48-60.47 vs. median 14.91μg/L,95% CI 7.87-25.86,U=42.5,P<0.001;sTyro3:median 16.91μg/L,95% CI 5.81-28.52 vs. median 9.53μg/L,95% CI 4.17-24.56,U=127.0,P=0.001).The changes of their concentration 24 h after PCI were not significant.The concentration of sMer is correlate strongly to thrombinantithrombin complex (r=0.9218,P=0.014).


Conclusion
The sMer and sTyro3 concentration are significant higher in ACS patients,their changes 24 h after PCI are not significant.(Chin J Lab Med,2013,36:1126-1130)


Key words: 
Acute coronary syndrome; Receptor protein-tyrosine kinases; Intercellular signaling peptides and proteins; Thrombin
Analysis and implementation of a power management unit with a multiratio switched capacitor DC–DC converter for a supercapacitor power supply (2016)

Summary An energy‐harvesting system requires an energy‐storing device to store the energy retrieved from the surrounding environment. Rechargeable batteries are commonly used to store this energy; however, because of the limited number of charge/discharge cycles, they need to be periodically replaced. A supercapacitor, which has, ideally, a limitless number of charge/discharge cycles, avoids this problem. In this case, it is required for the power management unit to produce a constant output voltage as the supercapacitor discharges. This paper presents a system with a multiratio switched capacitor DC–DC converter, in a 130‐nm technology, with a maximum output power of 2 mW, a maximum efficiency of 79.63% and a maximum output ripple, in the steady state, of 23 mV for an input voltage range of 2.3–0.87 V. The proposed converter has four operation states, to maximize its efficiency, that correspond to the conversion ratios of 1/2, 2/3, 1/1 and 3/2. Its clock frequency is automatically adjusted to produce a stable output voltage of 1 V. These features are implemented through two distinct controller circuits that use two asynchronous time machines to dynamically adjust the clock frequency and to select the active state of the converter. All the theoretical expressions as well as the behaviour of the whole system were verified by using electrical simulations. Copyright © 2016 John Wiley & Sons, Ltd.
Use of Hybrid Rendering Styles for Presentation (2003)

This paper presents hybrid rendering that combines the use of photorealistic and non-photorealistic rendering\nstyles in the same image. This allows to extend the set of expression dimensions available in a visualization environment.\nTo provide general applicability, this use of hybrid rendering styles is controlled by an XML-based\nscene description. We discuss the according schema definition and present an architecture for implementing the\npresented methods as well as two exemplary applications.
Lektin-reaktives Alpha-Fetoprotein bei Patienten mit Tyrosinämie Typ I (2005)

We suggest the further evaluation of lectin-reactive AFP in TTI.
Copolymerization of Styreneand Isoprene by Ziegler Catalyst (1961)

TiCl4-Al(C2H5)3系チグラー触媒によるスチレン(M1)とイソプレン(M2)との共重合反応をおこない,樹脂状からゴム状の生成物がえられた。重合生成物の分別沈澱,組成分析および赤外吸収スペクトルの研究から,生成物は2種類の共重合体からできていることがわかった。これよりこの触媒系には2種またはそれ以上の重合活性中心があり,この場合一つは自由イオン,他の一つは配位陰イオン重合をおこなうことを推論した。計算された単量体反応性比はそれぞれr1=0.63±0.39,r2=1.8±0.9およびr1=11±14,r2=0.08±0.84である。
Outcomes with Split Liver Transplantation Are Equivalent to Those with Whole Organ Transplantation (2013)

We demonstrated excellent outcomes in adult and pediatric recipients using carefully selected donors for liver splitting. We recommend escalation of the use of split liver transplants to expand the donor pool for cadaveric liver transplantation.
Apoptosis-Inducing Activity of Galloyl Monosaccharides in Human Histiocytic Lymphoma U937 Cells (2000)

Three galloyl monosaccharides contained in medicinal plants were examined for apoptosis-inducing activity in human histiocytic lymphoma U937 cells. Tetragalloyl glucose (TgG) induced apoptosis as found by chromatin condensation, DNA ladder formation, and inhibition by a caspase inhibitor. Digalloyl hamamelose had moderate activity, while monogalloyl glucose was only marginally active. These findings suggest that the number and disposition of their phenolic groups are important for apoptosis induction. TgG induced apoptosis in human colon and stomach cancer cell lines as well, indicating it is potentially useful as an anti-cancer agent.
ChemInform Abstract: Intramolecular Anodic Olefin Coupling Reactions: The Use of a Nitrogen Trapping Group. (2009)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Evidence for a functional RNA element in the hepatitis C virus core gene (2007)

In the core protein-coding region of hepatitis C virus (HCV), evidence exists for both phylogenetically conserved RNA structures and a +1 alternative reading frame (ARF). To investigate its role in HCV infection, we introduced four stop codons into the ARF of a genotype 1a H77 molecular clone. The changes did not alter the core protein sequence, but were predicted to disrupt RNA secondary structures. An attenuated infection was established after inoculation of the mutant HCV RNA into an HCV naïve chimpanzee. The acute infection was atypical with low peak viremia, minimal alanine aminotransferase elevation, and early virus control by a diverse adaptive immune response. Sequencing circulating virus revealed progressive reversions at the third and then fourth stop codon. In cell culture, RNA replication of a genome with four stop codons was severely impaired. In contrast, the revertant genome exhibited only a 5-fold reduction in replication. Genomes harboring only the first two stop codons replicated to WT levels. Similarly, reversions at stop codons 3 and 4, which improved replication, were selected with recombinant, infectious HCV in cell culture. We conclude that ARF-encoded proteins initiating at the polyprotein AUG are not essential for HCV replication in cell culture or in vivo. Rather, our results provide evidence for a functionally important RNA element in the ARF region.
Towards a better understanding of the cellular basis for cerebrospinal fluid shunt obstruction: report on construction of a bank of explanted hydrocephalus devices (2015)

OBJECTIVE Shunt obstruction by cells and/or tissue is the most common cause of shunt failure. Ventricular catheter obstruction alone accounts for more than 50% of shunt failures in pediatric patients. The authors sought to systematically collect explanted ventricular catheters from the Seattle Children's Hospital with a focus on elucidating the cellular mechanisms underlying obstruction. METHODS In the operating room, explanted hardware was placed in 4% paraformaldehyde. Weekly, samples were transferred to buffer solution and stored at 4°C. After consent was obtained for their use, catheters were labeled using cell-specific markers for astrocytes (glial fibrillary acidic protein), microglia (ionized calcium-binding adapter molecule 1), and choroid plexus (transthyretin) in conjunction with a nuclear stain (Hoechst). Catheters were mounted in custom polycarbonate imaging chambers. Three-dimensional, multispectral, spinning-disk confocal microscopy was used to image catheter cerebrospinal fluid–intake holes...